1use crate::{
   2    Anchor, Autoscroll, Editor, EditorEvent, EditorSettings, ExcerptId, ExcerptRange, FormatTarget,
   3    MultiBuffer, MultiBufferSnapshot, NavigationData, SearchWithinRange, ToPoint as _,
   4    editor_settings::SeedQuerySetting,
   5    persistence::{DB, SerializedEditor},
   6    scroll::ScrollAnchor,
   7};
   8use anyhow::{Context as _, Result, anyhow};
   9use collections::{HashMap, HashSet};
  10use file_icons::FileIcons;
  11use futures::future::try_join_all;
  12use git::status::GitSummary;
  13use gpui::{
  14    AnyElement, App, AsyncWindowContext, Context, Entity, EntityId, EventEmitter, IntoElement,
  15    ParentElement, Pixels, SharedString, Styled, Task, WeakEntity, Window, point,
  16};
  17use language::{
  18    Bias, Buffer, BufferRow, CharKind, DiskState, LocalFile, Point, SelectionGoal,
  19    proto::serialize_anchor as serialize_text_anchor,
  20};
  21use lsp::DiagnosticSeverity;
  22use project::{
  23    Project, ProjectItem as _, ProjectPath, lsp_store::FormatTrigger,
  24    project_settings::ProjectSettings, search::SearchQuery,
  25};
  26use rpc::proto::{self, update_view};
  27use settings::Settings;
  28use std::{
  29    any::TypeId,
  30    borrow::Cow,
  31    cmp::{self, Ordering},
  32    iter,
  33    ops::Range,
  34    path::{Path, PathBuf},
  35    sync::Arc,
  36};
  37use text::{BufferId, BufferSnapshot, Selection};
  38use theme::{Theme, ThemeSettings};
  39use ui::{IconDecorationKind, prelude::*};
  40use util::{ResultExt, TryFutureExt, paths::PathExt};
  41use workspace::{
  42    CollaboratorId, ItemId, ItemNavHistory, ToolbarItemLocation, ViewId, Workspace, WorkspaceId,
  43    item::{FollowableItem, Item, ItemEvent, ProjectItem},
  44    searchable::{Direction, SearchEvent, SearchableItem, SearchableItemHandle},
  45};
  46use workspace::{
  47    OpenOptions,
  48    item::{Dedup, ItemSettings, SerializableItem, TabContentParams},
  49};
  50use workspace::{
  51    OpenVisible, Pane, WorkspaceSettings,
  52    item::{BreadcrumbText, FollowEvent, ProjectItemKind},
  53    searchable::SearchOptions,
  54};
  55
  56pub const MAX_TAB_TITLE_LEN: usize = 24;
  57
  58impl FollowableItem for Editor {
  59    fn remote_id(&self) -> Option<ViewId> {
  60        self.remote_id
  61    }
  62
  63    fn from_state_proto(
  64        workspace: Entity<Workspace>,
  65        remote_id: ViewId,
  66        state: &mut Option<proto::view::Variant>,
  67        window: &mut Window,
  68        cx: &mut App,
  69    ) -> Option<Task<Result<Entity<Self>>>> {
  70        let project = workspace.read(cx).project().to_owned();
  71        let Some(proto::view::Variant::Editor(_)) = state else {
  72            return None;
  73        };
  74        let Some(proto::view::Variant::Editor(state)) = state.take() else {
  75            unreachable!()
  76        };
  77
  78        let buffer_ids = state
  79            .excerpts
  80            .iter()
  81            .map(|excerpt| excerpt.buffer_id)
  82            .collect::<HashSet<_>>();
  83        let buffers = project.update(cx, |project, cx| {
  84            buffer_ids
  85                .iter()
  86                .map(|id| BufferId::new(*id).map(|id| project.open_buffer_by_id(id, cx)))
  87                .collect::<Result<Vec<_>>>()
  88        });
  89
  90        Some(window.spawn(cx, async move |cx| {
  91            let mut buffers = futures::future::try_join_all(buffers?)
  92                .await
  93                .debug_assert_ok("leaders don't share views for unshared buffers")?;
  94
  95            let editor = cx.update(|window, cx| {
  96                let multibuffer = cx.new(|cx| {
  97                    let mut multibuffer;
  98                    if state.singleton && buffers.len() == 1 {
  99                        multibuffer = MultiBuffer::singleton(buffers.pop().unwrap(), cx)
 100                    } else {
 101                        multibuffer = MultiBuffer::new(project.read(cx).capability());
 102                        let mut sorted_excerpts = state.excerpts.clone();
 103                        sorted_excerpts.sort_by_key(|e| e.id);
 104                        let mut sorted_excerpts = sorted_excerpts.into_iter().peekable();
 105
 106                        while let Some(excerpt) = sorted_excerpts.next() {
 107                            let Ok(buffer_id) = BufferId::new(excerpt.buffer_id) else {
 108                                continue;
 109                            };
 110
 111                            let mut insert_position = ExcerptId::min();
 112                            for e in &state.excerpts {
 113                                if e.id == excerpt.id {
 114                                    break;
 115                                }
 116                                if e.id < excerpt.id {
 117                                    insert_position = ExcerptId::from_proto(e.id);
 118                                }
 119                            }
 120
 121                            let buffer =
 122                                buffers.iter().find(|b| b.read(cx).remote_id() == buffer_id);
 123
 124                            let Some(excerpt) = deserialize_excerpt_range(excerpt) else {
 125                                continue;
 126                            };
 127
 128                            let Some(buffer) = buffer else { continue };
 129
 130                            multibuffer.insert_excerpts_with_ids_after(
 131                                insert_position,
 132                                buffer.clone(),
 133                                [excerpt],
 134                                cx,
 135                            );
 136                        }
 137                    };
 138
 139                    if let Some(title) = &state.title {
 140                        multibuffer = multibuffer.with_title(title.clone())
 141                    }
 142
 143                    multibuffer
 144                });
 145
 146                cx.new(|cx| {
 147                    let mut editor =
 148                        Editor::for_multibuffer(multibuffer, Some(project.clone()), window, cx);
 149                    editor.remote_id = Some(remote_id);
 150                    editor
 151                })
 152            })?;
 153
 154            update_editor_from_message(
 155                editor.downgrade(),
 156                project,
 157                proto::update_view::Editor {
 158                    selections: state.selections,
 159                    pending_selection: state.pending_selection,
 160                    scroll_top_anchor: state.scroll_top_anchor,
 161                    scroll_x: state.scroll_x,
 162                    scroll_y: state.scroll_y,
 163                    ..Default::default()
 164                },
 165                cx,
 166            )
 167            .await?;
 168
 169            Ok(editor)
 170        }))
 171    }
 172
 173    fn set_leader_id(
 174        &mut self,
 175        leader_id: Option<CollaboratorId>,
 176        window: &mut Window,
 177        cx: &mut Context<Self>,
 178    ) {
 179        self.leader_id = leader_id;
 180        if self.leader_id.is_some() {
 181            self.buffer.update(cx, |buffer, cx| {
 182                buffer.remove_active_selections(cx);
 183            });
 184        } else if self.focus_handle.is_focused(window) {
 185            self.buffer.update(cx, |buffer, cx| {
 186                buffer.set_active_selections(
 187                    &self.selections.disjoint_anchors(),
 188                    self.selections.line_mode,
 189                    self.cursor_shape,
 190                    cx,
 191                );
 192            });
 193        }
 194        cx.notify();
 195    }
 196
 197    fn to_state_proto(&self, _: &Window, cx: &App) -> Option<proto::view::Variant> {
 198        let buffer = self.buffer.read(cx);
 199        if buffer
 200            .as_singleton()
 201            .and_then(|buffer| buffer.read(cx).file())
 202            .map_or(false, |file| file.is_private())
 203        {
 204            return None;
 205        }
 206
 207        let scroll_anchor = self.scroll_manager.anchor();
 208        let excerpts = buffer
 209            .read(cx)
 210            .excerpts()
 211            .map(|(id, buffer, range)| proto::Excerpt {
 212                id: id.to_proto(),
 213                buffer_id: buffer.remote_id().into(),
 214                context_start: Some(serialize_text_anchor(&range.context.start)),
 215                context_end: Some(serialize_text_anchor(&range.context.end)),
 216                primary_start: Some(serialize_text_anchor(&range.primary.start)),
 217                primary_end: Some(serialize_text_anchor(&range.primary.end)),
 218            })
 219            .collect();
 220        let snapshot = buffer.snapshot(cx);
 221
 222        Some(proto::view::Variant::Editor(proto::view::Editor {
 223            singleton: buffer.is_singleton(),
 224            title: (!buffer.is_singleton()).then(|| buffer.title(cx).into()),
 225            excerpts,
 226            scroll_top_anchor: Some(serialize_anchor(&scroll_anchor.anchor, &snapshot)),
 227            scroll_x: scroll_anchor.offset.x,
 228            scroll_y: scroll_anchor.offset.y,
 229            selections: self
 230                .selections
 231                .disjoint_anchors()
 232                .iter()
 233                .map(|s| serialize_selection(s, &snapshot))
 234                .collect(),
 235            pending_selection: self
 236                .selections
 237                .pending_anchor()
 238                .as_ref()
 239                .map(|s| serialize_selection(s, &snapshot)),
 240        }))
 241    }
 242
 243    fn to_follow_event(event: &EditorEvent) -> Option<workspace::item::FollowEvent> {
 244        match event {
 245            EditorEvent::Edited { .. } => Some(FollowEvent::Unfollow),
 246            EditorEvent::SelectionsChanged { local }
 247            | EditorEvent::ScrollPositionChanged { local, .. } => {
 248                if *local {
 249                    Some(FollowEvent::Unfollow)
 250                } else {
 251                    None
 252                }
 253            }
 254            _ => None,
 255        }
 256    }
 257
 258    fn add_event_to_update_proto(
 259        &self,
 260        event: &EditorEvent,
 261        update: &mut Option<proto::update_view::Variant>,
 262        _: &Window,
 263        cx: &App,
 264    ) -> bool {
 265        let update =
 266            update.get_or_insert_with(|| proto::update_view::Variant::Editor(Default::default()));
 267
 268        match update {
 269            proto::update_view::Variant::Editor(update) => match event {
 270                EditorEvent::ExcerptsAdded {
 271                    buffer,
 272                    predecessor,
 273                    excerpts,
 274                } => {
 275                    let buffer_id = buffer.read(cx).remote_id();
 276                    let mut excerpts = excerpts.iter();
 277                    if let Some((id, range)) = excerpts.next() {
 278                        update.inserted_excerpts.push(proto::ExcerptInsertion {
 279                            previous_excerpt_id: Some(predecessor.to_proto()),
 280                            excerpt: serialize_excerpt(buffer_id, id, range),
 281                        });
 282                        update.inserted_excerpts.extend(excerpts.map(|(id, range)| {
 283                            proto::ExcerptInsertion {
 284                                previous_excerpt_id: None,
 285                                excerpt: serialize_excerpt(buffer_id, id, range),
 286                            }
 287                        }))
 288                    }
 289                    true
 290                }
 291                EditorEvent::ExcerptsRemoved { ids, .. } => {
 292                    update
 293                        .deleted_excerpts
 294                        .extend(ids.iter().map(ExcerptId::to_proto));
 295                    true
 296                }
 297                EditorEvent::ScrollPositionChanged { autoscroll, .. } if !autoscroll => {
 298                    let snapshot = self.buffer.read(cx).snapshot(cx);
 299                    let scroll_anchor = self.scroll_manager.anchor();
 300                    update.scroll_top_anchor =
 301                        Some(serialize_anchor(&scroll_anchor.anchor, &snapshot));
 302                    update.scroll_x = scroll_anchor.offset.x;
 303                    update.scroll_y = scroll_anchor.offset.y;
 304                    true
 305                }
 306                EditorEvent::SelectionsChanged { .. } => {
 307                    let snapshot = self.buffer.read(cx).snapshot(cx);
 308                    update.selections = self
 309                        .selections
 310                        .disjoint_anchors()
 311                        .iter()
 312                        .map(|s| serialize_selection(s, &snapshot))
 313                        .collect();
 314                    update.pending_selection = self
 315                        .selections
 316                        .pending_anchor()
 317                        .as_ref()
 318                        .map(|s| serialize_selection(s, &snapshot));
 319                    true
 320                }
 321                _ => false,
 322            },
 323        }
 324    }
 325
 326    fn apply_update_proto(
 327        &mut self,
 328        project: &Entity<Project>,
 329        message: update_view::Variant,
 330        window: &mut Window,
 331        cx: &mut Context<Self>,
 332    ) -> Task<Result<()>> {
 333        let update_view::Variant::Editor(message) = message;
 334        let project = project.clone();
 335        cx.spawn_in(window, async move |this, cx| {
 336            update_editor_from_message(this, project, message, cx).await
 337        })
 338    }
 339
 340    fn is_project_item(&self, _window: &Window, _cx: &App) -> bool {
 341        true
 342    }
 343
 344    fn dedup(&self, existing: &Self, _: &Window, cx: &App) -> Option<Dedup> {
 345        let self_singleton = self.buffer.read(cx).as_singleton()?;
 346        let other_singleton = existing.buffer.read(cx).as_singleton()?;
 347        if self_singleton == other_singleton {
 348            Some(Dedup::KeepExisting)
 349        } else {
 350            None
 351        }
 352    }
 353
 354    fn update_agent_location(
 355        &mut self,
 356        location: language::Anchor,
 357        window: &mut Window,
 358        cx: &mut Context<Self>,
 359    ) {
 360        let buffer = self.buffer.read(cx);
 361        let buffer = buffer.read(cx);
 362        let Some((excerpt_id, _, _)) = buffer.as_singleton() else {
 363            return;
 364        };
 365        let position = buffer.anchor_in_excerpt(*excerpt_id, location).unwrap();
 366        let selection = Selection {
 367            id: 0,
 368            reversed: false,
 369            start: position,
 370            end: position,
 371            goal: SelectionGoal::None,
 372        };
 373        drop(buffer);
 374        self.set_selections_from_remote(vec![selection], None, window, cx);
 375        self.request_autoscroll_remotely(Autoscroll::fit(), cx);
 376    }
 377}
 378
 379async fn update_editor_from_message(
 380    this: WeakEntity<Editor>,
 381    project: Entity<Project>,
 382    message: proto::update_view::Editor,
 383    cx: &mut AsyncWindowContext,
 384) -> Result<()> {
 385    // Open all of the buffers of which excerpts were added to the editor.
 386    let inserted_excerpt_buffer_ids = message
 387        .inserted_excerpts
 388        .iter()
 389        .filter_map(|insertion| Some(insertion.excerpt.as_ref()?.buffer_id))
 390        .collect::<HashSet<_>>();
 391    let inserted_excerpt_buffers = project.update(cx, |project, cx| {
 392        inserted_excerpt_buffer_ids
 393            .into_iter()
 394            .map(|id| BufferId::new(id).map(|id| project.open_buffer_by_id(id, cx)))
 395            .collect::<Result<Vec<_>>>()
 396    })??;
 397    let _inserted_excerpt_buffers = try_join_all(inserted_excerpt_buffers).await?;
 398
 399    // Update the editor's excerpts.
 400    this.update(cx, |editor, cx| {
 401        editor.buffer.update(cx, |multibuffer, cx| {
 402            let mut removed_excerpt_ids = message
 403                .deleted_excerpts
 404                .into_iter()
 405                .map(ExcerptId::from_proto)
 406                .collect::<Vec<_>>();
 407            removed_excerpt_ids.sort_by({
 408                let multibuffer = multibuffer.read(cx);
 409                move |a, b| a.cmp(b, &multibuffer)
 410            });
 411
 412            let mut insertions = message.inserted_excerpts.into_iter().peekable();
 413            while let Some(insertion) = insertions.next() {
 414                let Some(excerpt) = insertion.excerpt else {
 415                    continue;
 416                };
 417                let Some(previous_excerpt_id) = insertion.previous_excerpt_id else {
 418                    continue;
 419                };
 420                let buffer_id = BufferId::new(excerpt.buffer_id)?;
 421                let Some(buffer) = project.read(cx).buffer_for_id(buffer_id, cx) else {
 422                    continue;
 423                };
 424
 425                let adjacent_excerpts = iter::from_fn(|| {
 426                    let insertion = insertions.peek()?;
 427                    if insertion.previous_excerpt_id.is_none()
 428                        && insertion.excerpt.as_ref()?.buffer_id == u64::from(buffer_id)
 429                    {
 430                        insertions.next()?.excerpt
 431                    } else {
 432                        None
 433                    }
 434                });
 435
 436                multibuffer.insert_excerpts_with_ids_after(
 437                    ExcerptId::from_proto(previous_excerpt_id),
 438                    buffer,
 439                    [excerpt]
 440                        .into_iter()
 441                        .chain(adjacent_excerpts)
 442                        .filter_map(deserialize_excerpt_range),
 443                    cx,
 444                );
 445            }
 446
 447            multibuffer.remove_excerpts(removed_excerpt_ids, cx);
 448            anyhow::Ok(())
 449        })
 450    })??;
 451
 452    // Deserialize the editor state.
 453    let (selections, pending_selection, scroll_top_anchor) = this.update(cx, |editor, cx| {
 454        let buffer = editor.buffer.read(cx).read(cx);
 455        let selections = message
 456            .selections
 457            .into_iter()
 458            .filter_map(|selection| deserialize_selection(&buffer, selection))
 459            .collect::<Vec<_>>();
 460        let pending_selection = message
 461            .pending_selection
 462            .and_then(|selection| deserialize_selection(&buffer, selection));
 463        let scroll_top_anchor = message
 464            .scroll_top_anchor
 465            .and_then(|anchor| deserialize_anchor(&buffer, anchor));
 466        anyhow::Ok((selections, pending_selection, scroll_top_anchor))
 467    })??;
 468
 469    // Wait until the buffer has received all of the operations referenced by
 470    // the editor's new state.
 471    this.update(cx, |editor, cx| {
 472        editor.buffer.update(cx, |buffer, cx| {
 473            buffer.wait_for_anchors(
 474                selections
 475                    .iter()
 476                    .chain(pending_selection.as_ref())
 477                    .flat_map(|selection| [selection.start, selection.end])
 478                    .chain(scroll_top_anchor),
 479                cx,
 480            )
 481        })
 482    })?
 483    .await?;
 484
 485    // Update the editor's state.
 486    this.update_in(cx, |editor, window, cx| {
 487        if !selections.is_empty() || pending_selection.is_some() {
 488            editor.set_selections_from_remote(selections, pending_selection, window, cx);
 489            editor.request_autoscroll_remotely(Autoscroll::newest(), cx);
 490        } else if let Some(scroll_top_anchor) = scroll_top_anchor {
 491            editor.set_scroll_anchor_remote(
 492                ScrollAnchor {
 493                    anchor: scroll_top_anchor,
 494                    offset: point(message.scroll_x, message.scroll_y),
 495                },
 496                window,
 497                cx,
 498            );
 499        }
 500    })?;
 501    Ok(())
 502}
 503
 504fn serialize_excerpt(
 505    buffer_id: BufferId,
 506    id: &ExcerptId,
 507    range: &ExcerptRange<language::Anchor>,
 508) -> Option<proto::Excerpt> {
 509    Some(proto::Excerpt {
 510        id: id.to_proto(),
 511        buffer_id: buffer_id.into(),
 512        context_start: Some(serialize_text_anchor(&range.context.start)),
 513        context_end: Some(serialize_text_anchor(&range.context.end)),
 514        primary_start: Some(serialize_text_anchor(&range.primary.start)),
 515        primary_end: Some(serialize_text_anchor(&range.primary.end)),
 516    })
 517}
 518
 519fn serialize_selection(
 520    selection: &Selection<Anchor>,
 521    buffer: &MultiBufferSnapshot,
 522) -> proto::Selection {
 523    proto::Selection {
 524        id: selection.id as u64,
 525        start: Some(serialize_anchor(&selection.start, &buffer)),
 526        end: Some(serialize_anchor(&selection.end, &buffer)),
 527        reversed: selection.reversed,
 528    }
 529}
 530
 531fn serialize_anchor(anchor: &Anchor, buffer: &MultiBufferSnapshot) -> proto::EditorAnchor {
 532    proto::EditorAnchor {
 533        excerpt_id: buffer.latest_excerpt_id(anchor.excerpt_id).to_proto(),
 534        anchor: Some(serialize_text_anchor(&anchor.text_anchor)),
 535    }
 536}
 537
 538fn deserialize_excerpt_range(
 539    excerpt: proto::Excerpt,
 540) -> Option<(ExcerptId, ExcerptRange<language::Anchor>)> {
 541    let context = {
 542        let start = language::proto::deserialize_anchor(excerpt.context_start?)?;
 543        let end = language::proto::deserialize_anchor(excerpt.context_end?)?;
 544        start..end
 545    };
 546    let primary = excerpt
 547        .primary_start
 548        .zip(excerpt.primary_end)
 549        .and_then(|(start, end)| {
 550            let start = language::proto::deserialize_anchor(start)?;
 551            let end = language::proto::deserialize_anchor(end)?;
 552            Some(start..end)
 553        })
 554        .unwrap_or_else(|| context.clone());
 555    Some((
 556        ExcerptId::from_proto(excerpt.id),
 557        ExcerptRange { context, primary },
 558    ))
 559}
 560
 561fn deserialize_selection(
 562    buffer: &MultiBufferSnapshot,
 563    selection: proto::Selection,
 564) -> Option<Selection<Anchor>> {
 565    Some(Selection {
 566        id: selection.id as usize,
 567        start: deserialize_anchor(buffer, selection.start?)?,
 568        end: deserialize_anchor(buffer, selection.end?)?,
 569        reversed: selection.reversed,
 570        goal: SelectionGoal::None,
 571    })
 572}
 573
 574fn deserialize_anchor(buffer: &MultiBufferSnapshot, anchor: proto::EditorAnchor) -> Option<Anchor> {
 575    let excerpt_id = ExcerptId::from_proto(anchor.excerpt_id);
 576    Some(Anchor {
 577        excerpt_id,
 578        text_anchor: language::proto::deserialize_anchor(anchor.anchor?)?,
 579        buffer_id: buffer.buffer_id_for_excerpt(excerpt_id),
 580        diff_base_anchor: None,
 581    })
 582}
 583
 584impl Item for Editor {
 585    type Event = EditorEvent;
 586
 587    fn navigate(
 588        &mut self,
 589        data: Box<dyn std::any::Any>,
 590        window: &mut Window,
 591        cx: &mut Context<Self>,
 592    ) -> bool {
 593        if let Ok(data) = data.downcast::<NavigationData>() {
 594            let newest_selection = self.selections.newest::<Point>(cx);
 595            let buffer = self.buffer.read(cx).read(cx);
 596            let offset = if buffer.can_resolve(&data.cursor_anchor) {
 597                data.cursor_anchor.to_point(&buffer)
 598            } else {
 599                buffer.clip_point(data.cursor_position, Bias::Left)
 600            };
 601
 602            let mut scroll_anchor = data.scroll_anchor;
 603            if !buffer.can_resolve(&scroll_anchor.anchor) {
 604                scroll_anchor.anchor = buffer.anchor_before(
 605                    buffer.clip_point(Point::new(data.scroll_top_row, 0), Bias::Left),
 606                );
 607            }
 608
 609            drop(buffer);
 610
 611            if newest_selection.head() == offset {
 612                false
 613            } else {
 614                let nav_history = self.nav_history.take();
 615                self.set_scroll_anchor(scroll_anchor, window, cx);
 616                self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
 617                    s.select_ranges([offset..offset])
 618                });
 619                self.nav_history = nav_history;
 620                true
 621            }
 622        } else {
 623            false
 624        }
 625    }
 626
 627    fn tab_tooltip_text(&self, cx: &App) -> Option<SharedString> {
 628        let file_path = self
 629            .buffer()
 630            .read(cx)
 631            .as_singleton()?
 632            .read(cx)
 633            .file()
 634            .and_then(|f| f.as_local())?
 635            .abs_path(cx);
 636
 637        let file_path = file_path.compact().to_string_lossy().to_string();
 638
 639        Some(file_path.into())
 640    }
 641
 642    fn telemetry_event_text(&self) -> Option<&'static str> {
 643        None
 644    }
 645
 646    fn tab_content_text(&self, detail: usize, cx: &App) -> SharedString {
 647        if let Some(path) = path_for_buffer(&self.buffer, detail, true, cx) {
 648            path.to_string_lossy().to_string().into()
 649        } else {
 650            "untitled".into()
 651        }
 652    }
 653
 654    fn tab_icon(&self, _: &Window, cx: &App) -> Option<Icon> {
 655        ItemSettings::get_global(cx)
 656            .file_icons
 657            .then(|| {
 658                path_for_buffer(&self.buffer, 0, true, cx)
 659                    .and_then(|path| FileIcons::get_icon(path.as_ref(), cx))
 660            })
 661            .flatten()
 662            .map(Icon::from_path)
 663    }
 664
 665    fn tab_content(&self, params: TabContentParams, _: &Window, cx: &App) -> AnyElement {
 666        let label_color = if ItemSettings::get_global(cx).git_status {
 667            self.buffer()
 668                .read(cx)
 669                .as_singleton()
 670                .and_then(|buffer| {
 671                    let buffer = buffer.read(cx);
 672                    let path = buffer.project_path(cx)?;
 673                    let buffer_id = buffer.remote_id();
 674                    let project = self.project.as_ref()?.read(cx);
 675                    let entry = project.entry_for_path(&path, cx)?;
 676                    let (repo, repo_path) = project
 677                        .git_store()
 678                        .read(cx)
 679                        .repository_and_path_for_buffer_id(buffer_id, cx)?;
 680                    let status = repo.read(cx).status_for_path(&repo_path)?.status;
 681
 682                    Some(entry_git_aware_label_color(
 683                        status.summary(),
 684                        entry.is_ignored,
 685                        params.selected,
 686                    ))
 687                })
 688                .unwrap_or_else(|| entry_label_color(params.selected))
 689        } else {
 690            entry_label_color(params.selected)
 691        };
 692
 693        let description = params.detail.and_then(|detail| {
 694            let path = path_for_buffer(&self.buffer, detail, false, cx)?;
 695            let description = path.to_string_lossy();
 696            let description = description.trim();
 697
 698            if description.is_empty() {
 699                return None;
 700            }
 701
 702            Some(util::truncate_and_trailoff(description, MAX_TAB_TITLE_LEN))
 703        });
 704
 705        // Whether the file was saved in the past but is now deleted.
 706        let was_deleted: bool = self
 707            .buffer()
 708            .read(cx)
 709            .as_singleton()
 710            .and_then(|buffer| buffer.read(cx).file())
 711            .map_or(false, |file| file.disk_state() == DiskState::Deleted);
 712
 713        h_flex()
 714            .gap_2()
 715            .child(
 716                Label::new(self.title(cx).to_string())
 717                    .color(label_color)
 718                    .when(params.preview, |this| this.italic())
 719                    .when(was_deleted, |this| this.strikethrough()),
 720            )
 721            .when_some(description, |this, description| {
 722                this.child(
 723                    Label::new(description)
 724                        .size(LabelSize::XSmall)
 725                        .color(Color::Muted),
 726                )
 727            })
 728            .into_any_element()
 729    }
 730
 731    fn for_each_project_item(
 732        &self,
 733        cx: &App,
 734        f: &mut dyn FnMut(EntityId, &dyn project::ProjectItem),
 735    ) {
 736        self.buffer
 737            .read(cx)
 738            .for_each_buffer(|buffer| f(buffer.entity_id(), buffer.read(cx)));
 739    }
 740
 741    fn is_singleton(&self, cx: &App) -> bool {
 742        self.buffer.read(cx).is_singleton()
 743    }
 744
 745    fn can_save_as(&self, cx: &App) -> bool {
 746        self.buffer.read(cx).is_singleton()
 747    }
 748
 749    fn clone_on_split(
 750        &self,
 751        _workspace_id: Option<WorkspaceId>,
 752        window: &mut Window,
 753        cx: &mut Context<Self>,
 754    ) -> Option<Entity<Editor>>
 755    where
 756        Self: Sized,
 757    {
 758        Some(cx.new(|cx| self.clone(window, cx)))
 759    }
 760
 761    fn set_nav_history(
 762        &mut self,
 763        history: ItemNavHistory,
 764        _window: &mut Window,
 765        _: &mut Context<Self>,
 766    ) {
 767        self.nav_history = Some(history);
 768    }
 769
 770    fn discarded(&self, _project: Entity<Project>, _: &mut Window, cx: &mut Context<Self>) {
 771        for buffer in self.buffer().clone().read(cx).all_buffers() {
 772            buffer.update(cx, |buffer, cx| buffer.discarded(cx))
 773        }
 774    }
 775
 776    fn deactivated(&mut self, _: &mut Window, cx: &mut Context<Self>) {
 777        let selection = self.selections.newest_anchor();
 778        self.push_to_nav_history(selection.head(), None, true, cx);
 779    }
 780
 781    fn workspace_deactivated(&mut self, _: &mut Window, cx: &mut Context<Self>) {
 782        self.hide_hovered_link(cx);
 783    }
 784
 785    fn is_dirty(&self, cx: &App) -> bool {
 786        self.buffer().read(cx).read(cx).is_dirty()
 787    }
 788
 789    fn has_deleted_file(&self, cx: &App) -> bool {
 790        self.buffer().read(cx).read(cx).has_deleted_file()
 791    }
 792
 793    fn has_conflict(&self, cx: &App) -> bool {
 794        self.buffer().read(cx).read(cx).has_conflict()
 795    }
 796
 797    fn can_save(&self, cx: &App) -> bool {
 798        let buffer = &self.buffer().read(cx);
 799        if let Some(buffer) = buffer.as_singleton() {
 800            buffer.read(cx).project_path(cx).is_some()
 801        } else {
 802            true
 803        }
 804    }
 805
 806    fn save(
 807        &mut self,
 808        format: bool,
 809        project: Entity<Project>,
 810        window: &mut Window,
 811        cx: &mut Context<Self>,
 812    ) -> Task<Result<()>> {
 813        self.report_editor_event("Editor Saved", None, cx);
 814        let buffers = self.buffer().clone().read(cx).all_buffers();
 815        let buffers = buffers
 816            .into_iter()
 817            .map(|handle| handle.read(cx).base_buffer().unwrap_or(handle.clone()))
 818            .collect::<HashSet<_>>();
 819        cx.spawn_in(window, async move |this, cx| {
 820            if format {
 821                this.update_in(cx, |editor, window, cx| {
 822                    editor.perform_format(
 823                        project.clone(),
 824                        FormatTrigger::Save,
 825                        FormatTarget::Buffers,
 826                        window,
 827                        cx,
 828                    )
 829                })?
 830                .await?;
 831            }
 832
 833            if buffers.len() == 1 {
 834                // Apply full save routine for singleton buffers, to allow to `touch` the file via the editor.
 835                project
 836                    .update(cx, |project, cx| project.save_buffers(buffers, cx))?
 837                    .await?;
 838            } else {
 839                // For multi-buffers, only format and save the buffers with changes.
 840                // For clean buffers, we simulate saving by calling `Buffer::did_save`,
 841                // so that language servers or other downstream listeners of save events get notified.
 842                let (dirty_buffers, clean_buffers) = buffers.into_iter().partition(|buffer| {
 843                    buffer
 844                        .read_with(cx, |buffer, _| buffer.is_dirty() || buffer.has_conflict())
 845                        .unwrap_or(false)
 846                });
 847
 848                project
 849                    .update(cx, |project, cx| project.save_buffers(dirty_buffers, cx))?
 850                    .await?;
 851                for buffer in clean_buffers {
 852                    buffer
 853                        .update(cx, |buffer, cx| {
 854                            let version = buffer.saved_version().clone();
 855                            let mtime = buffer.saved_mtime();
 856                            buffer.did_save(version, mtime, cx);
 857                        })
 858                        .ok();
 859                }
 860            }
 861
 862            Ok(())
 863        })
 864    }
 865
 866    fn save_as(
 867        &mut self,
 868        project: Entity<Project>,
 869        path: ProjectPath,
 870        _: &mut Window,
 871        cx: &mut Context<Self>,
 872    ) -> Task<Result<()>> {
 873        let buffer = self
 874            .buffer()
 875            .read(cx)
 876            .as_singleton()
 877            .expect("cannot call save_as on an excerpt list");
 878
 879        let file_extension = path
 880            .path
 881            .extension()
 882            .map(|a| a.to_string_lossy().to_string());
 883        self.report_editor_event("Editor Saved", file_extension, cx);
 884
 885        project.update(cx, |project, cx| project.save_buffer_as(buffer, path, cx))
 886    }
 887
 888    fn reload(
 889        &mut self,
 890        project: Entity<Project>,
 891        window: &mut Window,
 892        cx: &mut Context<Self>,
 893    ) -> Task<Result<()>> {
 894        let buffer = self.buffer().clone();
 895        let buffers = self.buffer.read(cx).all_buffers();
 896        let reload_buffers =
 897            project.update(cx, |project, cx| project.reload_buffers(buffers, true, cx));
 898        cx.spawn_in(window, async move |this, cx| {
 899            let transaction = reload_buffers.log_err().await;
 900            this.update(cx, |editor, cx| {
 901                editor.request_autoscroll(Autoscroll::fit(), cx)
 902            })?;
 903            buffer
 904                .update(cx, |buffer, cx| {
 905                    if let Some(transaction) = transaction {
 906                        if !buffer.is_singleton() {
 907                            buffer.push_transaction(&transaction.0, cx);
 908                        }
 909                    }
 910                })
 911                .ok();
 912            Ok(())
 913        })
 914    }
 915
 916    fn as_searchable(&self, handle: &Entity<Self>) -> Option<Box<dyn SearchableItemHandle>> {
 917        Some(Box::new(handle.clone()))
 918    }
 919
 920    fn pixel_position_of_cursor(&self, _: &App) -> Option<gpui::Point<Pixels>> {
 921        self.pixel_position_of_newest_cursor
 922    }
 923
 924    fn breadcrumb_location(&self, _: &App) -> ToolbarItemLocation {
 925        if self.show_breadcrumbs {
 926            ToolbarItemLocation::PrimaryLeft
 927        } else {
 928            ToolbarItemLocation::Hidden
 929        }
 930    }
 931
 932    fn breadcrumbs(&self, variant: &Theme, cx: &App) -> Option<Vec<BreadcrumbText>> {
 933        let cursor = self.selections.newest_anchor().head();
 934        let multibuffer = &self.buffer().read(cx);
 935        let (buffer_id, symbols) =
 936            multibuffer.symbols_containing(cursor, Some(variant.syntax()), cx)?;
 937        let buffer = multibuffer.buffer(buffer_id)?;
 938
 939        let buffer = buffer.read(cx);
 940        let text = self.breadcrumb_header.clone().unwrap_or_else(|| {
 941            buffer
 942                .snapshot()
 943                .resolve_file_path(
 944                    cx,
 945                    self.project
 946                        .as_ref()
 947                        .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
 948                        .unwrap_or_default(),
 949                )
 950                .map(|path| path.to_string_lossy().to_string())
 951                .unwrap_or_else(|| {
 952                    if multibuffer.is_singleton() {
 953                        multibuffer.title(cx).to_string()
 954                    } else {
 955                        "untitled".to_string()
 956                    }
 957                })
 958        });
 959
 960        let settings = ThemeSettings::get_global(cx);
 961
 962        let mut breadcrumbs = vec![BreadcrumbText {
 963            text,
 964            highlights: None,
 965            font: Some(settings.buffer_font.clone()),
 966        }];
 967
 968        breadcrumbs.extend(symbols.into_iter().map(|symbol| BreadcrumbText {
 969            text: symbol.text,
 970            highlights: Some(symbol.highlight_ranges),
 971            font: Some(settings.buffer_font.clone()),
 972        }));
 973        Some(breadcrumbs)
 974    }
 975
 976    fn added_to_workspace(
 977        &mut self,
 978        workspace: &mut Workspace,
 979        _window: &mut Window,
 980        cx: &mut Context<Self>,
 981    ) {
 982        self.workspace = Some((workspace.weak_handle(), workspace.database_id()));
 983        if let Some(workspace) = &workspace.weak_handle().upgrade() {
 984            cx.subscribe(&workspace, |editor, _, event: &workspace::Event, _cx| {
 985                if matches!(event, workspace::Event::ModalOpened) {
 986                    editor.mouse_context_menu.take();
 987                    editor.inline_blame_popover.take();
 988                }
 989            })
 990            .detach();
 991        }
 992    }
 993
 994    fn to_item_events(event: &EditorEvent, mut f: impl FnMut(ItemEvent)) {
 995        match event {
 996            EditorEvent::Closed => f(ItemEvent::CloseItem),
 997
 998            EditorEvent::Saved | EditorEvent::TitleChanged => {
 999                f(ItemEvent::UpdateTab);
1000                f(ItemEvent::UpdateBreadcrumbs);
1001            }
1002
1003            EditorEvent::Reparsed(_) => {
1004                f(ItemEvent::UpdateBreadcrumbs);
1005            }
1006
1007            EditorEvent::SelectionsChanged { local } if *local => {
1008                f(ItemEvent::UpdateBreadcrumbs);
1009            }
1010
1011            EditorEvent::DirtyChanged => {
1012                f(ItemEvent::UpdateTab);
1013            }
1014
1015            EditorEvent::BufferEdited => {
1016                f(ItemEvent::Edit);
1017                f(ItemEvent::UpdateBreadcrumbs);
1018            }
1019
1020            EditorEvent::ExcerptsAdded { .. } | EditorEvent::ExcerptsRemoved { .. } => {
1021                f(ItemEvent::Edit);
1022            }
1023
1024            _ => {}
1025        }
1026    }
1027
1028    fn preserve_preview(&self, cx: &App) -> bool {
1029        self.buffer.read(cx).preserve_preview(cx)
1030    }
1031}
1032
1033impl SerializableItem for Editor {
1034    fn serialized_item_kind() -> &'static str {
1035        "Editor"
1036    }
1037
1038    fn cleanup(
1039        workspace_id: WorkspaceId,
1040        alive_items: Vec<ItemId>,
1041        _window: &mut Window,
1042        cx: &mut App,
1043    ) -> Task<Result<()>> {
1044        workspace::delete_unloaded_items(alive_items, workspace_id, "editors", &DB, cx)
1045    }
1046
1047    fn deserialize(
1048        project: Entity<Project>,
1049        workspace: WeakEntity<Workspace>,
1050        workspace_id: workspace::WorkspaceId,
1051        item_id: ItemId,
1052        window: &mut Window,
1053        cx: &mut App,
1054    ) -> Task<Result<Entity<Self>>> {
1055        let serialized_editor = match DB
1056            .get_serialized_editor(item_id, workspace_id)
1057            .context("Failed to query editor state")
1058        {
1059            Ok(Some(serialized_editor)) => {
1060                if ProjectSettings::get_global(cx)
1061                    .session
1062                    .restore_unsaved_buffers
1063                {
1064                    serialized_editor
1065                } else {
1066                    SerializedEditor {
1067                        abs_path: serialized_editor.abs_path,
1068                        contents: None,
1069                        language: None,
1070                        mtime: None,
1071                    }
1072                }
1073            }
1074            Ok(None) => {
1075                return Task::ready(Err(anyhow!("No path or contents found for buffer")));
1076            }
1077            Err(error) => {
1078                return Task::ready(Err(error));
1079            }
1080        };
1081
1082        match serialized_editor {
1083            SerializedEditor {
1084                abs_path: None,
1085                contents: Some(contents),
1086                language,
1087                ..
1088            } => window.spawn(cx, {
1089                let project = project.clone();
1090                async move |cx| {
1091                    let language_registry =
1092                        project.read_with(cx, |project, _| project.languages().clone())?;
1093
1094                    let language = if let Some(language_name) = language {
1095                        // We don't fail here, because we'd rather not set the language if the name changed
1096                        // than fail to restore the buffer.
1097                        language_registry
1098                            .language_for_name(&language_name)
1099                            .await
1100                            .ok()
1101                    } else {
1102                        None
1103                    };
1104
1105                    // First create the empty buffer
1106                    let buffer = project
1107                        .update(cx, |project, cx| project.create_buffer(cx))?
1108                        .await?;
1109
1110                    // Then set the text so that the dirty bit is set correctly
1111                    buffer.update(cx, |buffer, cx| {
1112                        buffer.set_language_registry(language_registry);
1113                        if let Some(language) = language {
1114                            buffer.set_language(Some(language), cx);
1115                        }
1116                        buffer.set_text(contents, cx);
1117                        if let Some(entry) = buffer.peek_undo_stack() {
1118                            buffer.forget_transaction(entry.transaction_id());
1119                        }
1120                    })?;
1121
1122                    cx.update(|window, cx| {
1123                        cx.new(|cx| {
1124                            let mut editor = Editor::for_buffer(buffer, Some(project), window, cx);
1125
1126                            editor.read_metadata_from_db(item_id, workspace_id, window, cx);
1127                            editor
1128                        })
1129                    })
1130                }
1131            }),
1132            SerializedEditor {
1133                abs_path: Some(abs_path),
1134                contents,
1135                mtime,
1136                ..
1137            } => {
1138                let opened_buffer = project.update(cx, |project, cx| {
1139                    let (worktree, path) = project.find_worktree(&abs_path, cx)?;
1140                    let project_path = ProjectPath {
1141                        worktree_id: worktree.read(cx).id(),
1142                        path: path.into(),
1143                    };
1144                    Some(project.open_path(project_path, cx))
1145                });
1146
1147                match opened_buffer {
1148                    Some(opened_buffer) => {
1149                        window.spawn(cx, async move |cx| {
1150                            let (_, buffer) = opened_buffer.await?;
1151
1152                            // This is a bit wasteful: we're loading the whole buffer from
1153                            // disk and then overwrite the content.
1154                            // But for now, it keeps the implementation of the content serialization
1155                            // simple, because we don't have to persist all of the metadata that we get
1156                            // by loading the file (git diff base, ...).
1157                            if let Some(buffer_text) = contents {
1158                                buffer.update(cx, |buffer, cx| {
1159                                    // If we did restore an mtime, we want to store it on the buffer
1160                                    // so that the next edit will mark the buffer as dirty/conflicted.
1161                                    if mtime.is_some() {
1162                                        buffer.did_reload(
1163                                            buffer.version(),
1164                                            buffer.line_ending(),
1165                                            mtime,
1166                                            cx,
1167                                        );
1168                                    }
1169                                    buffer.set_text(buffer_text, cx);
1170                                    if let Some(entry) = buffer.peek_undo_stack() {
1171                                        buffer.forget_transaction(entry.transaction_id());
1172                                    }
1173                                })?;
1174                            }
1175
1176                            cx.update(|window, cx| {
1177                                cx.new(|cx| {
1178                                    let mut editor =
1179                                        Editor::for_buffer(buffer, Some(project), window, cx);
1180
1181                                    editor.read_metadata_from_db(item_id, workspace_id, window, cx);
1182                                    editor
1183                                })
1184                            })
1185                        })
1186                    }
1187                    None => {
1188                        let open_by_abs_path = workspace.update(cx, |workspace, cx| {
1189                            workspace.open_abs_path(
1190                                abs_path.clone(),
1191                                OpenOptions {
1192                                    visible: Some(OpenVisible::None),
1193                                    ..Default::default()
1194                                },
1195                                window,
1196                                cx,
1197                            )
1198                        });
1199                        window.spawn(cx, async move |cx| {
1200                            let editor = open_by_abs_path?.await?.downcast::<Editor>().with_context(|| format!("Failed to downcast to Editor after opening abs path {abs_path:?}"))?;
1201                            editor.update_in(cx, |editor, window, cx| {
1202                                editor.read_metadata_from_db(item_id, workspace_id, window, cx);
1203                            })?;
1204                            Ok(editor)
1205                        })
1206                    }
1207                }
1208            }
1209            SerializedEditor {
1210                abs_path: None,
1211                contents: None,
1212                ..
1213            } => Task::ready(Err(anyhow!("No path or contents found for buffer"))),
1214        }
1215    }
1216
1217    fn serialize(
1218        &mut self,
1219        workspace: &mut Workspace,
1220        item_id: ItemId,
1221        closing: bool,
1222        window: &mut Window,
1223        cx: &mut Context<Self>,
1224    ) -> Option<Task<Result<()>>> {
1225        if self.mode.is_minimap() {
1226            return None;
1227        }
1228        let mut serialize_dirty_buffers = self.serialize_dirty_buffers;
1229
1230        let project = self.project.clone()?;
1231        if project.read(cx).visible_worktrees(cx).next().is_none() {
1232            // If we don't have a worktree, we don't serialize, because
1233            // projects without worktrees aren't deserialized.
1234            serialize_dirty_buffers = false;
1235        }
1236
1237        if closing && !serialize_dirty_buffers {
1238            return None;
1239        }
1240
1241        let workspace_id = workspace.database_id()?;
1242
1243        let buffer = self.buffer().read(cx).as_singleton()?;
1244
1245        let abs_path = buffer.read(cx).file().and_then(|file| {
1246            let worktree_id = file.worktree_id(cx);
1247            project
1248                .read(cx)
1249                .worktree_for_id(worktree_id, cx)
1250                .and_then(|worktree| worktree.read(cx).absolutize(&file.path()).ok())
1251                .or_else(|| {
1252                    let full_path = file.full_path(cx);
1253                    let project_path = project.read(cx).find_project_path(&full_path, cx)?;
1254                    project.read(cx).absolute_path(&project_path, cx)
1255                })
1256        });
1257
1258        let is_dirty = buffer.read(cx).is_dirty();
1259        let mtime = buffer.read(cx).saved_mtime();
1260
1261        let snapshot = buffer.read(cx).snapshot();
1262
1263        Some(cx.spawn_in(window, async move |_this, cx| {
1264            cx.background_spawn(async move {
1265                let (contents, language) = if serialize_dirty_buffers && is_dirty {
1266                    let contents = snapshot.text();
1267                    let language = snapshot.language().map(|lang| lang.name().to_string());
1268                    (Some(contents), language)
1269                } else {
1270                    (None, None)
1271                };
1272
1273                let editor = SerializedEditor {
1274                    abs_path,
1275                    contents,
1276                    language,
1277                    mtime,
1278                };
1279                log::debug!("Serializing editor {item_id:?} in workspace {workspace_id:?}");
1280                DB.save_serialized_editor(item_id, workspace_id, editor)
1281                    .await
1282                    .context("failed to save serialized editor")
1283            })
1284            .await
1285            .context("failed to save contents of buffer")?;
1286
1287            Ok(())
1288        }))
1289    }
1290
1291    fn should_serialize(&self, event: &Self::Event) -> bool {
1292        matches!(
1293            event,
1294            EditorEvent::Saved | EditorEvent::DirtyChanged | EditorEvent::BufferEdited
1295        )
1296    }
1297}
1298
1299#[derive(Debug, Default)]
1300struct EditorRestorationData {
1301    entries: HashMap<PathBuf, RestorationData>,
1302}
1303
1304#[derive(Default, Debug)]
1305pub struct RestorationData {
1306    pub scroll_position: (BufferRow, gpui::Point<f32>),
1307    pub folds: Vec<Range<Point>>,
1308    pub selections: Vec<Range<Point>>,
1309}
1310
1311impl ProjectItem for Editor {
1312    type Item = Buffer;
1313
1314    fn project_item_kind() -> Option<ProjectItemKind> {
1315        Some(ProjectItemKind("Editor"))
1316    }
1317
1318    fn for_project_item(
1319        project: Entity<Project>,
1320        pane: Option<&Pane>,
1321        buffer: Entity<Buffer>,
1322        window: &mut Window,
1323        cx: &mut Context<Self>,
1324    ) -> Self {
1325        let mut editor = Self::for_buffer(buffer.clone(), Some(project), window, cx);
1326        if let Some((excerpt_id, buffer_id, snapshot)) =
1327            editor.buffer().read(cx).snapshot(cx).as_singleton()
1328        {
1329            if WorkspaceSettings::get(None, cx).restore_on_file_reopen {
1330                if let Some(restoration_data) = Self::project_item_kind()
1331                    .and_then(|kind| pane.as_ref()?.project_item_restoration_data.get(&kind))
1332                    .and_then(|data| data.downcast_ref::<EditorRestorationData>())
1333                    .and_then(|data| {
1334                        let file = project::File::from_dyn(buffer.read(cx).file())?;
1335                        data.entries.get(&file.abs_path(cx))
1336                    })
1337                {
1338                    editor.fold_ranges(
1339                        clip_ranges(&restoration_data.folds, &snapshot),
1340                        false,
1341                        window,
1342                        cx,
1343                    );
1344                    if !restoration_data.selections.is_empty() {
1345                        editor.change_selections(None, window, cx, |s| {
1346                            s.select_ranges(clip_ranges(&restoration_data.selections, &snapshot));
1347                        });
1348                    }
1349                    let (top_row, offset) = restoration_data.scroll_position;
1350                    let anchor = Anchor::in_buffer(
1351                        *excerpt_id,
1352                        buffer_id,
1353                        snapshot.anchor_before(Point::new(top_row, 0)),
1354                    );
1355                    editor.set_scroll_anchor(ScrollAnchor { anchor, offset }, window, cx);
1356                }
1357            }
1358        }
1359
1360        editor
1361    }
1362}
1363
1364fn clip_ranges<'a>(
1365    original: impl IntoIterator<Item = &'a Range<Point>> + 'a,
1366    snapshot: &'a BufferSnapshot,
1367) -> Vec<Range<Point>> {
1368    original
1369        .into_iter()
1370        .map(|range| {
1371            snapshot.clip_point(range.start, Bias::Left)
1372                ..snapshot.clip_point(range.end, Bias::Right)
1373        })
1374        .collect()
1375}
1376
1377impl EventEmitter<SearchEvent> for Editor {}
1378
1379impl Editor {
1380    pub fn update_restoration_data(
1381        &self,
1382        cx: &mut Context<Self>,
1383        write: impl for<'a> FnOnce(&'a mut RestorationData) + 'static,
1384    ) {
1385        if self.mode.is_minimap() || !WorkspaceSettings::get(None, cx).restore_on_file_reopen {
1386            return;
1387        }
1388
1389        let editor = cx.entity();
1390        cx.defer(move |cx| {
1391            editor.update(cx, |editor, cx| {
1392                let kind = Editor::project_item_kind()?;
1393                let pane = editor.workspace()?.read(cx).pane_for(&cx.entity())?;
1394                let buffer = editor.buffer().read(cx).as_singleton()?;
1395                let file_abs_path = project::File::from_dyn(buffer.read(cx).file())?.abs_path(cx);
1396                pane.update(cx, |pane, _| {
1397                    let data = pane
1398                        .project_item_restoration_data
1399                        .entry(kind)
1400                        .or_insert_with(|| Box::new(EditorRestorationData::default()) as Box<_>);
1401                    let data = match data.downcast_mut::<EditorRestorationData>() {
1402                        Some(data) => data,
1403                        None => {
1404                            *data = Box::new(EditorRestorationData::default());
1405                            data.downcast_mut::<EditorRestorationData>()
1406                                .expect("just written the type downcasted to")
1407                        }
1408                    };
1409
1410                    let data = data.entries.entry(file_abs_path).or_default();
1411                    write(data);
1412                    Some(())
1413                })
1414            });
1415        });
1416    }
1417}
1418
1419pub(crate) enum BufferSearchHighlights {}
1420impl SearchableItem for Editor {
1421    type Match = Range<Anchor>;
1422
1423    fn get_matches(&self, _window: &mut Window, _: &mut App) -> Vec<Range<Anchor>> {
1424        self.background_highlights
1425            .get(&TypeId::of::<BufferSearchHighlights>())
1426            .map_or(Vec::new(), |(_color, ranges)| {
1427                ranges.iter().cloned().collect()
1428            })
1429    }
1430
1431    fn clear_matches(&mut self, _: &mut Window, cx: &mut Context<Self>) {
1432        if self
1433            .clear_background_highlights::<BufferSearchHighlights>(cx)
1434            .is_some()
1435        {
1436            cx.emit(SearchEvent::MatchesInvalidated);
1437        }
1438    }
1439
1440    fn update_matches(
1441        &mut self,
1442        matches: &[Range<Anchor>],
1443        _: &mut Window,
1444        cx: &mut Context<Self>,
1445    ) {
1446        let existing_range = self
1447            .background_highlights
1448            .get(&TypeId::of::<BufferSearchHighlights>())
1449            .map(|(_, range)| range.as_ref());
1450        let updated = existing_range != Some(matches);
1451        self.highlight_background::<BufferSearchHighlights>(
1452            matches,
1453            |theme| theme.search_match_background,
1454            cx,
1455        );
1456        if updated {
1457            cx.emit(SearchEvent::MatchesInvalidated);
1458        }
1459    }
1460
1461    fn has_filtered_search_ranges(&mut self) -> bool {
1462        self.has_background_highlights::<SearchWithinRange>()
1463    }
1464
1465    fn toggle_filtered_search_ranges(
1466        &mut self,
1467        enabled: bool,
1468        _: &mut Window,
1469        cx: &mut Context<Self>,
1470    ) {
1471        if self.has_filtered_search_ranges() {
1472            self.previous_search_ranges = self
1473                .clear_background_highlights::<SearchWithinRange>(cx)
1474                .map(|(_, ranges)| ranges)
1475        }
1476
1477        if !enabled {
1478            return;
1479        }
1480
1481        let ranges = self.selections.disjoint_anchor_ranges().collect::<Vec<_>>();
1482        if ranges.iter().any(|s| s.start != s.end) {
1483            self.set_search_within_ranges(&ranges, cx);
1484        } else if let Some(previous_search_ranges) = self.previous_search_ranges.take() {
1485            self.set_search_within_ranges(&previous_search_ranges, cx)
1486        }
1487    }
1488
1489    fn supported_options(&self) -> SearchOptions {
1490        if self.in_project_search {
1491            SearchOptions {
1492                case: true,
1493                word: true,
1494                regex: true,
1495                replacement: false,
1496                selection: false,
1497                find_in_results: true,
1498            }
1499        } else {
1500            SearchOptions {
1501                case: true,
1502                word: true,
1503                regex: true,
1504                replacement: true,
1505                selection: true,
1506                find_in_results: false,
1507            }
1508        }
1509    }
1510
1511    fn query_suggestion(&mut self, window: &mut Window, cx: &mut Context<Self>) -> String {
1512        let setting = EditorSettings::get_global(cx).seed_search_query_from_cursor;
1513        let snapshot = &self.snapshot(window, cx).buffer_snapshot;
1514        let selection = self.selections.newest::<usize>(cx);
1515
1516        match setting {
1517            SeedQuerySetting::Never => String::new(),
1518            SeedQuerySetting::Selection | SeedQuerySetting::Always if !selection.is_empty() => {
1519                let text: String = snapshot
1520                    .text_for_range(selection.start..selection.end)
1521                    .collect();
1522                if text.contains('\n') {
1523                    String::new()
1524                } else {
1525                    text
1526                }
1527            }
1528            SeedQuerySetting::Selection => String::new(),
1529            SeedQuerySetting::Always => {
1530                let (range, kind) = snapshot.surrounding_word(selection.start, true);
1531                if kind == Some(CharKind::Word) {
1532                    let text: String = snapshot.text_for_range(range).collect();
1533                    if !text.trim().is_empty() {
1534                        return text;
1535                    }
1536                }
1537                String::new()
1538            }
1539        }
1540    }
1541
1542    fn activate_match(
1543        &mut self,
1544        index: usize,
1545        matches: &[Range<Anchor>],
1546        window: &mut Window,
1547        cx: &mut Context<Self>,
1548    ) {
1549        self.unfold_ranges(&[matches[index].clone()], false, true, cx);
1550        let range = self.range_for_match(&matches[index]);
1551        self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
1552            s.select_ranges([range]);
1553        })
1554    }
1555
1556    fn select_matches(
1557        &mut self,
1558        matches: &[Self::Match],
1559        window: &mut Window,
1560        cx: &mut Context<Self>,
1561    ) {
1562        self.unfold_ranges(matches, false, false, cx);
1563        self.change_selections(None, window, cx, |s| {
1564            s.select_ranges(matches.iter().cloned())
1565        });
1566    }
1567    fn replace(
1568        &mut self,
1569        identifier: &Self::Match,
1570        query: &SearchQuery,
1571        window: &mut Window,
1572        cx: &mut Context<Self>,
1573    ) {
1574        let text = self.buffer.read(cx);
1575        let text = text.snapshot(cx);
1576        let text = text.text_for_range(identifier.clone()).collect::<Vec<_>>();
1577        let text: Cow<_> = if text.len() == 1 {
1578            text.first().cloned().unwrap().into()
1579        } else {
1580            let joined_chunks = text.join("");
1581            joined_chunks.into()
1582        };
1583
1584        if let Some(replacement) = query.replacement_for(&text) {
1585            self.transact(window, cx, |this, _, cx| {
1586                this.edit([(identifier.clone(), Arc::from(&*replacement))], cx);
1587            });
1588        }
1589    }
1590    fn replace_all(
1591        &mut self,
1592        matches: &mut dyn Iterator<Item = &Self::Match>,
1593        query: &SearchQuery,
1594        window: &mut Window,
1595        cx: &mut Context<Self>,
1596    ) {
1597        let text = self.buffer.read(cx);
1598        let text = text.snapshot(cx);
1599        let mut edits = vec![];
1600        let mut last_point: Option<Point> = None;
1601
1602        for m in matches {
1603            let point = m.start.to_point(&text);
1604            let text = text.text_for_range(m.clone()).collect::<Vec<_>>();
1605
1606            // Check if the row for the current match is different from the last
1607            // match. If that's not the case and we're still replacing matches
1608            // in the same row/line, skip this match if the `one_match_per_line`
1609            // option is enabled.
1610            if last_point.is_none() {
1611                last_point = Some(point);
1612            } else if last_point.is_some() && point.row != last_point.unwrap().row {
1613                last_point = Some(point);
1614            } else if query.one_match_per_line().is_some_and(|enabled| enabled) {
1615                continue;
1616            }
1617
1618            let text: Cow<_> = if text.len() == 1 {
1619                text.first().cloned().unwrap().into()
1620            } else {
1621                let joined_chunks = text.join("");
1622                joined_chunks.into()
1623            };
1624
1625            if let Some(replacement) = query.replacement_for(&text) {
1626                edits.push((m.clone(), Arc::from(&*replacement)));
1627            }
1628        }
1629
1630        if !edits.is_empty() {
1631            self.transact(window, cx, |this, _, cx| {
1632                this.edit(edits, cx);
1633            });
1634        }
1635    }
1636    fn match_index_for_direction(
1637        &mut self,
1638        matches: &[Range<Anchor>],
1639        current_index: usize,
1640        direction: Direction,
1641        count: usize,
1642        _: &mut Window,
1643        cx: &mut Context<Self>,
1644    ) -> usize {
1645        let buffer = self.buffer().read(cx).snapshot(cx);
1646        let current_index_position = if self.selections.disjoint_anchors().len() == 1 {
1647            self.selections.newest_anchor().head()
1648        } else {
1649            matches[current_index].start
1650        };
1651
1652        let mut count = count % matches.len();
1653        if count == 0 {
1654            return current_index;
1655        }
1656        match direction {
1657            Direction::Next => {
1658                if matches[current_index]
1659                    .start
1660                    .cmp(&current_index_position, &buffer)
1661                    .is_gt()
1662                {
1663                    count -= 1
1664                }
1665
1666                (current_index + count) % matches.len()
1667            }
1668            Direction::Prev => {
1669                if matches[current_index]
1670                    .end
1671                    .cmp(&current_index_position, &buffer)
1672                    .is_lt()
1673                {
1674                    count -= 1;
1675                }
1676
1677                if current_index >= count {
1678                    current_index - count
1679                } else {
1680                    matches.len() - (count - current_index)
1681                }
1682            }
1683        }
1684    }
1685
1686    fn find_matches(
1687        &mut self,
1688        query: Arc<project::search::SearchQuery>,
1689        _: &mut Window,
1690        cx: &mut Context<Self>,
1691    ) -> Task<Vec<Range<Anchor>>> {
1692        let buffer = self.buffer().read(cx).snapshot(cx);
1693        let search_within_ranges = self
1694            .background_highlights
1695            .get(&TypeId::of::<SearchWithinRange>())
1696            .map_or(vec![], |(_color, ranges)| {
1697                ranges.iter().cloned().collect::<Vec<_>>()
1698            });
1699
1700        cx.background_spawn(async move {
1701            let mut ranges = Vec::new();
1702
1703            let search_within_ranges = if search_within_ranges.is_empty() {
1704                vec![buffer.anchor_before(0)..buffer.anchor_after(buffer.len())]
1705            } else {
1706                search_within_ranges
1707            };
1708
1709            for range in search_within_ranges {
1710                for (search_buffer, search_range, excerpt_id, deleted_hunk_anchor) in
1711                    buffer.range_to_buffer_ranges_with_deleted_hunks(range)
1712                {
1713                    ranges.extend(
1714                        query
1715                            .search(search_buffer, Some(search_range.clone()))
1716                            .await
1717                            .into_iter()
1718                            .map(|match_range| {
1719                                if let Some(deleted_hunk_anchor) = deleted_hunk_anchor {
1720                                    let start = search_buffer
1721                                        .anchor_after(search_range.start + match_range.start);
1722                                    let end = search_buffer
1723                                        .anchor_before(search_range.start + match_range.end);
1724                                    Anchor {
1725                                        diff_base_anchor: Some(start),
1726                                        ..deleted_hunk_anchor
1727                                    }..Anchor {
1728                                        diff_base_anchor: Some(end),
1729                                        ..deleted_hunk_anchor
1730                                    }
1731                                } else {
1732                                    let start = search_buffer
1733                                        .anchor_after(search_range.start + match_range.start);
1734                                    let end = search_buffer
1735                                        .anchor_before(search_range.start + match_range.end);
1736                                    Anchor::range_in_buffer(
1737                                        excerpt_id,
1738                                        search_buffer.remote_id(),
1739                                        start..end,
1740                                    )
1741                                }
1742                            }),
1743                    );
1744                }
1745            }
1746
1747            ranges
1748        })
1749    }
1750
1751    fn active_match_index(
1752        &mut self,
1753        direction: Direction,
1754        matches: &[Range<Anchor>],
1755        _: &mut Window,
1756        cx: &mut Context<Self>,
1757    ) -> Option<usize> {
1758        active_match_index(
1759            direction,
1760            matches,
1761            &self.selections.newest_anchor().head(),
1762            &self.buffer().read(cx).snapshot(cx),
1763        )
1764    }
1765
1766    fn search_bar_visibility_changed(&mut self, _: bool, _: &mut Window, _: &mut Context<Self>) {
1767        self.expect_bounds_change = self.last_bounds;
1768    }
1769}
1770
1771pub fn active_match_index(
1772    direction: Direction,
1773    ranges: &[Range<Anchor>],
1774    cursor: &Anchor,
1775    buffer: &MultiBufferSnapshot,
1776) -> Option<usize> {
1777    if ranges.is_empty() {
1778        None
1779    } else {
1780        let r = ranges.binary_search_by(|probe| {
1781            if probe.end.cmp(cursor, buffer).is_lt() {
1782                Ordering::Less
1783            } else if probe.start.cmp(cursor, buffer).is_gt() {
1784                Ordering::Greater
1785            } else {
1786                Ordering::Equal
1787            }
1788        });
1789        match direction {
1790            Direction::Prev => match r {
1791                Ok(i) => Some(i),
1792                Err(i) => Some(i.saturating_sub(1)),
1793            },
1794            Direction::Next => match r {
1795                Ok(i) | Err(i) => Some(cmp::min(i, ranges.len() - 1)),
1796            },
1797        }
1798    }
1799}
1800
1801pub fn entry_label_color(selected: bool) -> Color {
1802    if selected {
1803        Color::Default
1804    } else {
1805        Color::Muted
1806    }
1807}
1808
1809pub fn entry_diagnostic_aware_icon_name_and_color(
1810    diagnostic_severity: Option<DiagnosticSeverity>,
1811) -> Option<(IconName, Color)> {
1812    match diagnostic_severity {
1813        Some(DiagnosticSeverity::ERROR) => Some((IconName::X, Color::Error)),
1814        Some(DiagnosticSeverity::WARNING) => Some((IconName::Triangle, Color::Warning)),
1815        _ => None,
1816    }
1817}
1818
1819pub fn entry_diagnostic_aware_icon_decoration_and_color(
1820    diagnostic_severity: Option<DiagnosticSeverity>,
1821) -> Option<(IconDecorationKind, Color)> {
1822    match diagnostic_severity {
1823        Some(DiagnosticSeverity::ERROR) => Some((IconDecorationKind::X, Color::Error)),
1824        Some(DiagnosticSeverity::WARNING) => Some((IconDecorationKind::Triangle, Color::Warning)),
1825        _ => None,
1826    }
1827}
1828
1829pub fn entry_git_aware_label_color(git_status: GitSummary, ignored: bool, selected: bool) -> Color {
1830    let tracked = git_status.index + git_status.worktree;
1831    if ignored {
1832        Color::Ignored
1833    } else if git_status.conflict > 0 {
1834        Color::Conflict
1835    } else if tracked.modified > 0 {
1836        Color::Modified
1837    } else if tracked.added > 0 || git_status.untracked > 0 {
1838        Color::Created
1839    } else {
1840        entry_label_color(selected)
1841    }
1842}
1843
1844fn path_for_buffer<'a>(
1845    buffer: &Entity<MultiBuffer>,
1846    height: usize,
1847    include_filename: bool,
1848    cx: &'a App,
1849) -> Option<Cow<'a, Path>> {
1850    let file = buffer.read(cx).as_singleton()?.read(cx).file()?;
1851    path_for_file(file.as_ref(), height, include_filename, cx)
1852}
1853
1854fn path_for_file<'a>(
1855    file: &'a dyn language::File,
1856    mut height: usize,
1857    include_filename: bool,
1858    cx: &'a App,
1859) -> Option<Cow<'a, Path>> {
1860    // Ensure we always render at least the filename.
1861    height += 1;
1862
1863    let mut prefix = file.path().as_ref();
1864    while height > 0 {
1865        if let Some(parent) = prefix.parent() {
1866            prefix = parent;
1867            height -= 1;
1868        } else {
1869            break;
1870        }
1871    }
1872
1873    // Here we could have just always used `full_path`, but that is very
1874    // allocation-heavy and so we try to use a `Cow<Path>` if we haven't
1875    // traversed all the way up to the worktree's root.
1876    if height > 0 {
1877        let full_path = file.full_path(cx);
1878        if include_filename {
1879            Some(full_path.into())
1880        } else {
1881            Some(full_path.parent()?.to_path_buf().into())
1882        }
1883    } else {
1884        let mut path = file.path().strip_prefix(prefix).ok()?;
1885        if !include_filename {
1886            path = path.parent()?;
1887        }
1888        Some(path.into())
1889    }
1890}
1891
1892#[cfg(test)]
1893mod tests {
1894    use crate::editor_tests::init_test;
1895    use fs::Fs;
1896
1897    use super::*;
1898    use fs::MTime;
1899    use gpui::{App, VisualTestContext};
1900    use language::{LanguageMatcher, TestFile};
1901    use project::FakeFs;
1902    use std::path::{Path, PathBuf};
1903    use util::path;
1904
1905    #[gpui::test]
1906    fn test_path_for_file(cx: &mut App) {
1907        let file = TestFile {
1908            path: Path::new("").into(),
1909            root_name: String::new(),
1910            local_root: None,
1911        };
1912        assert_eq!(path_for_file(&file, 0, false, cx), None);
1913    }
1914
1915    async fn deserialize_editor(
1916        item_id: ItemId,
1917        workspace_id: WorkspaceId,
1918        workspace: Entity<Workspace>,
1919        project: Entity<Project>,
1920        cx: &mut VisualTestContext,
1921    ) -> Entity<Editor> {
1922        workspace
1923            .update_in(cx, |workspace, window, cx| {
1924                let pane = workspace.active_pane();
1925                pane.update(cx, |_, cx| {
1926                    Editor::deserialize(
1927                        project.clone(),
1928                        workspace.weak_handle(),
1929                        workspace_id,
1930                        item_id,
1931                        window,
1932                        cx,
1933                    )
1934                })
1935            })
1936            .await
1937            .unwrap()
1938    }
1939
1940    fn rust_language() -> Arc<language::Language> {
1941        Arc::new(language::Language::new(
1942            language::LanguageConfig {
1943                name: "Rust".into(),
1944                matcher: LanguageMatcher {
1945                    path_suffixes: vec!["rs".to_string()],
1946                    ..Default::default()
1947                },
1948                ..Default::default()
1949            },
1950            Some(tree_sitter_rust::LANGUAGE.into()),
1951        ))
1952    }
1953
1954    #[gpui::test]
1955    async fn test_deserialize(cx: &mut gpui::TestAppContext) {
1956        init_test(cx, |_| {});
1957
1958        let fs = FakeFs::new(cx.executor());
1959        fs.insert_file(path!("/file.rs"), Default::default()).await;
1960
1961        // Test case 1: Deserialize with path and contents
1962        {
1963            let project = Project::test(fs.clone(), [path!("/file.rs").as_ref()], cx).await;
1964            let (workspace, cx) =
1965                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
1966            let workspace_id = workspace::WORKSPACE_DB.next_id().await.unwrap();
1967            let item_id = 1234 as ItemId;
1968            let mtime = fs
1969                .metadata(Path::new(path!("/file.rs")))
1970                .await
1971                .unwrap()
1972                .unwrap()
1973                .mtime;
1974
1975            let serialized_editor = SerializedEditor {
1976                abs_path: Some(PathBuf::from(path!("/file.rs"))),
1977                contents: Some("fn main() {}".to_string()),
1978                language: Some("Rust".to_string()),
1979                mtime: Some(mtime),
1980            };
1981
1982            DB.save_serialized_editor(item_id, workspace_id, serialized_editor.clone())
1983                .await
1984                .unwrap();
1985
1986            let deserialized =
1987                deserialize_editor(item_id, workspace_id, workspace, project, cx).await;
1988
1989            deserialized.update(cx, |editor, cx| {
1990                assert_eq!(editor.text(cx), "fn main() {}");
1991                assert!(editor.is_dirty(cx));
1992                assert!(!editor.has_conflict(cx));
1993                let buffer = editor.buffer().read(cx).as_singleton().unwrap().read(cx);
1994                assert!(buffer.file().is_some());
1995            });
1996        }
1997
1998        // Test case 2: Deserialize with only path
1999        {
2000            let project = Project::test(fs.clone(), [path!("/file.rs").as_ref()], cx).await;
2001            let (workspace, cx) =
2002                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
2003
2004            let workspace_id = workspace::WORKSPACE_DB.next_id().await.unwrap();
2005
2006            let item_id = 5678 as ItemId;
2007            let serialized_editor = SerializedEditor {
2008                abs_path: Some(PathBuf::from(path!("/file.rs"))),
2009                contents: None,
2010                language: None,
2011                mtime: None,
2012            };
2013
2014            DB.save_serialized_editor(item_id, workspace_id, serialized_editor)
2015                .await
2016                .unwrap();
2017
2018            let deserialized =
2019                deserialize_editor(item_id, workspace_id, workspace, project, cx).await;
2020
2021            deserialized.update(cx, |editor, cx| {
2022                assert_eq!(editor.text(cx), ""); // The file should be empty as per our initial setup
2023                assert!(!editor.is_dirty(cx));
2024                assert!(!editor.has_conflict(cx));
2025
2026                let buffer = editor.buffer().read(cx).as_singleton().unwrap().read(cx);
2027                assert!(buffer.file().is_some());
2028            });
2029        }
2030
2031        // Test case 3: Deserialize with no path (untitled buffer, with content and language)
2032        {
2033            let project = Project::test(fs.clone(), [path!("/file.rs").as_ref()], cx).await;
2034            // Add Rust to the language, so that we can restore the language of the buffer
2035            project.read_with(cx, |project, _| project.languages().add(rust_language()));
2036
2037            let (workspace, cx) =
2038                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
2039
2040            let workspace_id = workspace::WORKSPACE_DB.next_id().await.unwrap();
2041
2042            let item_id = 9012 as ItemId;
2043            let serialized_editor = SerializedEditor {
2044                abs_path: None,
2045                contents: Some("hello".to_string()),
2046                language: Some("Rust".to_string()),
2047                mtime: None,
2048            };
2049
2050            DB.save_serialized_editor(item_id, workspace_id, serialized_editor)
2051                .await
2052                .unwrap();
2053
2054            let deserialized =
2055                deserialize_editor(item_id, workspace_id, workspace, project, cx).await;
2056
2057            deserialized.update(cx, |editor, cx| {
2058                assert_eq!(editor.text(cx), "hello");
2059                assert!(editor.is_dirty(cx)); // The editor should be dirty for an untitled buffer
2060
2061                let buffer = editor.buffer().read(cx).as_singleton().unwrap().read(cx);
2062                assert_eq!(
2063                    buffer.language().map(|lang| lang.name()),
2064                    Some("Rust".into())
2065                ); // Language should be set to Rust
2066                assert!(buffer.file().is_none()); // The buffer should not have an associated file
2067            });
2068        }
2069
2070        // Test case 4: Deserialize with path, content, and old mtime
2071        {
2072            let project = Project::test(fs.clone(), [path!("/file.rs").as_ref()], cx).await;
2073            let (workspace, cx) =
2074                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
2075
2076            let workspace_id = workspace::WORKSPACE_DB.next_id().await.unwrap();
2077
2078            let item_id = 9345 as ItemId;
2079            let old_mtime = MTime::from_seconds_and_nanos(0, 50);
2080            let serialized_editor = SerializedEditor {
2081                abs_path: Some(PathBuf::from(path!("/file.rs"))),
2082                contents: Some("fn main() {}".to_string()),
2083                language: Some("Rust".to_string()),
2084                mtime: Some(old_mtime),
2085            };
2086
2087            DB.save_serialized_editor(item_id, workspace_id, serialized_editor)
2088                .await
2089                .unwrap();
2090
2091            let deserialized =
2092                deserialize_editor(item_id, workspace_id, workspace, project, cx).await;
2093
2094            deserialized.update(cx, |editor, cx| {
2095                assert_eq!(editor.text(cx), "fn main() {}");
2096                assert!(editor.has_conflict(cx)); // The editor should have a conflict
2097            });
2098        }
2099    }
2100}