project_panel.rs

   1mod project_panel_settings;
   2
   3use context_menu::{ContextMenu, ContextMenuItem};
   4use db::kvp::KEY_VALUE_STORE;
   5use drag_and_drop::{DragAndDrop, Draggable};
   6use editor::{Cancel, Editor};
   7use futures::stream::StreamExt;
   8use gpui::{
   9    actions,
  10    anyhow::{self, anyhow, Result},
  11    elements::{
  12        AnchorCorner, ChildView, ContainerStyle, Empty, Flex, Label, MouseEventHandler,
  13        ParentElement, ScrollTarget, Stack, Svg, UniformList, UniformListState,
  14    },
  15    geometry::vector::Vector2F,
  16    keymap_matcher::KeymapContext,
  17    platform::{CursorStyle, MouseButton, PromptLevel},
  18    Action, AnyElement, AppContext, AsyncAppContext, ClipboardItem, Element, Entity, ModelHandle,
  19    Task, View, ViewContext, ViewHandle, WeakViewHandle, WindowContext,
  20};
  21use menu::{Confirm, SelectNext, SelectPrev};
  22use project::{
  23    repository::GitFileStatus, Entry, EntryKind, Fs, Project, ProjectEntryId, ProjectPath,
  24    Worktree, WorktreeId,
  25};
  26use project_panel_settings::{ProjectPanelDockPosition, ProjectPanelSettings};
  27use serde::{Deserialize, Serialize};
  28use settings::SettingsStore;
  29use std::{
  30    cmp::Ordering,
  31    collections::{hash_map, HashMap},
  32    ffi::OsStr,
  33    ops::Range,
  34    path::Path,
  35    sync::Arc,
  36};
  37use theme::ProjectPanelEntry;
  38use unicase::UniCase;
  39use util::{ResultExt, TryFutureExt};
  40use workspace::{
  41    dock::{DockPosition, Panel},
  42    Workspace,
  43};
  44
  45const PROJECT_PANEL_KEY: &'static str = "ProjectPanel";
  46const NEW_ENTRY_ID: ProjectEntryId = ProjectEntryId::MAX;
  47
  48pub struct ProjectPanel {
  49    project: ModelHandle<Project>,
  50    fs: Arc<dyn Fs>,
  51    list: UniformListState,
  52    visible_entries: Vec<(WorktreeId, Vec<Entry>)>,
  53    last_worktree_root_id: Option<ProjectEntryId>,
  54    expanded_dir_ids: HashMap<WorktreeId, Vec<ProjectEntryId>>,
  55    selection: Option<Selection>,
  56    edit_state: Option<EditState>,
  57    filename_editor: ViewHandle<Editor>,
  58    clipboard_entry: Option<ClipboardEntry>,
  59    context_menu: ViewHandle<ContextMenu>,
  60    dragged_entry_destination: Option<Arc<Path>>,
  61    workspace: WeakViewHandle<Workspace>,
  62    has_focus: bool,
  63    width: Option<f32>,
  64    pending_serialization: Task<Option<()>>,
  65}
  66
  67#[derive(Copy, Clone)]
  68struct Selection {
  69    worktree_id: WorktreeId,
  70    entry_id: ProjectEntryId,
  71}
  72
  73#[derive(Clone, Debug)]
  74struct EditState {
  75    worktree_id: WorktreeId,
  76    entry_id: ProjectEntryId,
  77    is_new_entry: bool,
  78    is_dir: bool,
  79    processing_filename: Option<String>,
  80}
  81
  82#[derive(Copy, Clone)]
  83pub enum ClipboardEntry {
  84    Copied {
  85        worktree_id: WorktreeId,
  86        entry_id: ProjectEntryId,
  87    },
  88    Cut {
  89        worktree_id: WorktreeId,
  90        entry_id: ProjectEntryId,
  91    },
  92}
  93
  94#[derive(Debug, PartialEq, Eq)]
  95pub struct EntryDetails {
  96    filename: String,
  97    path: Arc<Path>,
  98    depth: usize,
  99    kind: EntryKind,
 100    is_ignored: bool,
 101    is_expanded: bool,
 102    is_selected: bool,
 103    is_editing: bool,
 104    is_processing: bool,
 105    is_cut: bool,
 106    git_status: Option<GitFileStatus>,
 107}
 108
 109actions!(
 110    project_panel,
 111    [
 112        ExpandSelectedEntry,
 113        CollapseSelectedEntry,
 114        NewDirectory,
 115        NewFile,
 116        Copy,
 117        CopyPath,
 118        CopyRelativePath,
 119        RevealInFinder,
 120        Cut,
 121        Paste,
 122        Delete,
 123        Rename,
 124        ToggleFocus
 125    ]
 126);
 127
 128pub fn init_settings(cx: &mut AppContext) {
 129    settings::register::<ProjectPanelSettings>(cx);
 130}
 131
 132pub fn init(cx: &mut AppContext) {
 133    init_settings(cx);
 134    cx.add_action(ProjectPanel::expand_selected_entry);
 135    cx.add_action(ProjectPanel::collapse_selected_entry);
 136    cx.add_action(ProjectPanel::select_prev);
 137    cx.add_action(ProjectPanel::select_next);
 138    cx.add_action(ProjectPanel::new_file);
 139    cx.add_action(ProjectPanel::new_directory);
 140    cx.add_action(ProjectPanel::rename);
 141    cx.add_async_action(ProjectPanel::delete);
 142    cx.add_async_action(ProjectPanel::confirm);
 143    cx.add_action(ProjectPanel::cancel);
 144    cx.add_action(ProjectPanel::cut);
 145    cx.add_action(ProjectPanel::copy);
 146    cx.add_action(ProjectPanel::copy_path);
 147    cx.add_action(ProjectPanel::copy_relative_path);
 148    cx.add_action(ProjectPanel::reveal_in_finder);
 149    cx.add_action(
 150        |this: &mut ProjectPanel, action: &Paste, cx: &mut ViewContext<ProjectPanel>| {
 151            this.paste(action, cx);
 152        },
 153    );
 154}
 155
 156#[derive(Debug)]
 157pub enum Event {
 158    OpenedEntry {
 159        entry_id: ProjectEntryId,
 160        focus_opened_item: bool,
 161    },
 162    DockPositionChanged,
 163    Focus,
 164}
 165
 166#[derive(Serialize, Deserialize)]
 167struct SerializedProjectPanel {
 168    width: Option<f32>,
 169}
 170
 171impl ProjectPanel {
 172    fn new(workspace: &mut Workspace, cx: &mut ViewContext<Workspace>) -> ViewHandle<Self> {
 173        let project = workspace.project().clone();
 174        let project_panel = cx.add_view(|cx: &mut ViewContext<Self>| {
 175            cx.observe(&project, |this, _, cx| {
 176                this.update_visible_entries(None, cx);
 177                cx.notify();
 178            })
 179            .detach();
 180            cx.subscribe(&project, |this, project, event, cx| match event {
 181                project::Event::ActiveEntryChanged(Some(entry_id)) => {
 182                    if let Some(worktree_id) = project.read(cx).worktree_id_for_entry(*entry_id, cx)
 183                    {
 184                        this.expand_entry(worktree_id, *entry_id, cx);
 185                        this.update_visible_entries(Some((worktree_id, *entry_id)), cx);
 186                        this.autoscroll(cx);
 187                        cx.notify();
 188                    }
 189                }
 190                project::Event::WorktreeRemoved(id) => {
 191                    this.expanded_dir_ids.remove(id);
 192                    this.update_visible_entries(None, cx);
 193                    cx.notify();
 194                }
 195                _ => {}
 196            })
 197            .detach();
 198
 199            let filename_editor = cx.add_view(|cx| {
 200                Editor::single_line(
 201                    Some(Arc::new(|theme| {
 202                        let mut style = theme.project_panel.filename_editor.clone();
 203                        style.container.background_color.take();
 204                        style
 205                    })),
 206                    cx,
 207                )
 208            });
 209
 210            cx.subscribe(&filename_editor, |this, _, event, cx| match event {
 211                editor::Event::BufferEdited | editor::Event::SelectionsChanged { .. } => {
 212                    this.autoscroll(cx);
 213                }
 214                _ => {}
 215            })
 216            .detach();
 217            cx.observe_focus(&filename_editor, |this, _, is_focused, cx| {
 218                if !is_focused
 219                    && this
 220                        .edit_state
 221                        .as_ref()
 222                        .map_or(false, |state| state.processing_filename.is_none())
 223                {
 224                    this.edit_state = None;
 225                    this.update_visible_entries(None, cx);
 226                }
 227            })
 228            .detach();
 229
 230            let view_id = cx.view_id();
 231            let mut this = Self {
 232                project: project.clone(),
 233                fs: workspace.app_state().fs.clone(),
 234                list: Default::default(),
 235                visible_entries: Default::default(),
 236                last_worktree_root_id: Default::default(),
 237                expanded_dir_ids: Default::default(),
 238                selection: None,
 239                edit_state: None,
 240                filename_editor,
 241                clipboard_entry: None,
 242                context_menu: cx.add_view(|cx| ContextMenu::new(view_id, cx)),
 243                dragged_entry_destination: None,
 244                workspace: workspace.weak_handle(),
 245                has_focus: false,
 246                width: None,
 247                pending_serialization: Task::ready(None),
 248            };
 249            this.update_visible_entries(None, cx);
 250
 251            // Update the dock position when the setting changes.
 252            let mut old_dock_position = this.position(cx);
 253            cx.observe_global::<SettingsStore, _>(move |this, cx| {
 254                let new_dock_position = this.position(cx);
 255                if new_dock_position != old_dock_position {
 256                    old_dock_position = new_dock_position;
 257                    cx.emit(Event::DockPositionChanged);
 258                }
 259            })
 260            .detach();
 261
 262            this
 263        });
 264
 265        cx.subscribe(&project_panel, {
 266            let project_panel = project_panel.downgrade();
 267            move |workspace, _, event, cx| match event {
 268                &Event::OpenedEntry {
 269                    entry_id,
 270                    focus_opened_item,
 271                } => {
 272                    if let Some(worktree) = project.read(cx).worktree_for_entry(entry_id, cx) {
 273                        if let Some(entry) = worktree.read(cx).entry_for_id(entry_id) {
 274                            workspace
 275                                .open_path(
 276                                    ProjectPath {
 277                                        worktree_id: worktree.read(cx).id(),
 278                                        path: entry.path.clone(),
 279                                    },
 280                                    None,
 281                                    focus_opened_item,
 282                                    cx,
 283                                )
 284                                .detach_and_log_err(cx);
 285                            if !focus_opened_item {
 286                                if let Some(project_panel) = project_panel.upgrade(cx) {
 287                                    cx.focus(&project_panel);
 288                                }
 289                            }
 290                        }
 291                    }
 292                }
 293                _ => {}
 294            }
 295        })
 296        .detach();
 297
 298        project_panel
 299    }
 300
 301    pub fn load(
 302        workspace: WeakViewHandle<Workspace>,
 303        cx: AsyncAppContext,
 304    ) -> Task<Result<ViewHandle<Self>>> {
 305        cx.spawn(|mut cx| async move {
 306            let serialized_panel = if let Some(panel) = cx
 307                .background()
 308                .spawn(async move { KEY_VALUE_STORE.read_kvp(PROJECT_PANEL_KEY) })
 309                .await
 310                .log_err()
 311                .flatten()
 312            {
 313                Some(serde_json::from_str::<SerializedProjectPanel>(&panel)?)
 314            } else {
 315                None
 316            };
 317            workspace.update(&mut cx, |workspace, cx| {
 318                let panel = ProjectPanel::new(workspace, cx);
 319                if let Some(serialized_panel) = serialized_panel {
 320                    panel.update(cx, |panel, cx| {
 321                        panel.width = serialized_panel.width;
 322                        cx.notify();
 323                    });
 324                }
 325                panel
 326            })
 327        })
 328    }
 329
 330    fn serialize(&mut self, cx: &mut ViewContext<Self>) {
 331        let width = self.width;
 332        self.pending_serialization = cx.background().spawn(
 333            async move {
 334                KEY_VALUE_STORE
 335                    .write_kvp(
 336                        PROJECT_PANEL_KEY.into(),
 337                        serde_json::to_string(&SerializedProjectPanel { width })?,
 338                    )
 339                    .await?;
 340                anyhow::Ok(())
 341            }
 342            .log_err(),
 343        );
 344    }
 345
 346    fn deploy_context_menu(
 347        &mut self,
 348        position: Vector2F,
 349        entry_id: ProjectEntryId,
 350        cx: &mut ViewContext<Self>,
 351    ) {
 352        let project = self.project.read(cx);
 353
 354        let worktree_id = if let Some(id) = project.worktree_id_for_entry(entry_id, cx) {
 355            id
 356        } else {
 357            return;
 358        };
 359
 360        self.selection = Some(Selection {
 361            worktree_id,
 362            entry_id,
 363        });
 364
 365        let mut menu_entries = Vec::new();
 366        if let Some((worktree, entry)) = self.selected_entry(cx) {
 367            let is_root = Some(entry) == worktree.root_entry();
 368            if !project.is_remote() {
 369                menu_entries.push(ContextMenuItem::action(
 370                    "Add Folder to Project",
 371                    workspace::AddFolderToProject,
 372                ));
 373                if is_root {
 374                    let project = self.project.clone();
 375                    menu_entries.push(ContextMenuItem::handler("Remove from Project", move |cx| {
 376                        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 377                    }));
 378                }
 379            }
 380            menu_entries.push(ContextMenuItem::action("New File", NewFile));
 381            menu_entries.push(ContextMenuItem::action("New Folder", NewDirectory));
 382            menu_entries.push(ContextMenuItem::Separator);
 383            menu_entries.push(ContextMenuItem::action("Cut", Cut));
 384            menu_entries.push(ContextMenuItem::action("Copy", Copy));
 385            menu_entries.push(ContextMenuItem::Separator);
 386            menu_entries.push(ContextMenuItem::action("Copy Path", CopyPath));
 387            menu_entries.push(ContextMenuItem::action(
 388                "Copy Relative Path",
 389                CopyRelativePath,
 390            ));
 391            menu_entries.push(ContextMenuItem::action("Reveal in Finder", RevealInFinder));
 392            if let Some(clipboard_entry) = self.clipboard_entry {
 393                if clipboard_entry.worktree_id() == worktree.id() {
 394                    menu_entries.push(ContextMenuItem::action("Paste", Paste));
 395                }
 396            }
 397            menu_entries.push(ContextMenuItem::Separator);
 398            menu_entries.push(ContextMenuItem::action("Rename", Rename));
 399            if !is_root {
 400                menu_entries.push(ContextMenuItem::action("Delete", Delete));
 401            }
 402        }
 403
 404        self.context_menu.update(cx, |menu, cx| {
 405            menu.show(position, AnchorCorner::TopLeft, menu_entries, cx);
 406        });
 407
 408        cx.notify();
 409    }
 410
 411    fn expand_selected_entry(&mut self, _: &ExpandSelectedEntry, cx: &mut ViewContext<Self>) {
 412        if let Some((worktree, entry)) = self.selected_entry(cx) {
 413            if entry.is_dir() {
 414                let expanded_dir_ids =
 415                    if let Some(expanded_dir_ids) = self.expanded_dir_ids.get_mut(&worktree.id()) {
 416                        expanded_dir_ids
 417                    } else {
 418                        return;
 419                    };
 420
 421                match expanded_dir_ids.binary_search(&entry.id) {
 422                    Ok(_) => self.select_next(&SelectNext, cx),
 423                    Err(ix) => {
 424                        expanded_dir_ids.insert(ix, entry.id);
 425                        self.update_visible_entries(None, cx);
 426                        cx.notify();
 427                    }
 428                }
 429            }
 430        }
 431    }
 432
 433    fn collapse_selected_entry(&mut self, _: &CollapseSelectedEntry, cx: &mut ViewContext<Self>) {
 434        if let Some((worktree, mut entry)) = self.selected_entry(cx) {
 435            let expanded_dir_ids =
 436                if let Some(expanded_dir_ids) = self.expanded_dir_ids.get_mut(&worktree.id()) {
 437                    expanded_dir_ids
 438                } else {
 439                    return;
 440                };
 441
 442            loop {
 443                match expanded_dir_ids.binary_search(&entry.id) {
 444                    Ok(ix) => {
 445                        expanded_dir_ids.remove(ix);
 446                        self.update_visible_entries(Some((worktree.id(), entry.id)), cx);
 447                        cx.notify();
 448                        break;
 449                    }
 450                    Err(_) => {
 451                        if let Some(parent_entry) =
 452                            entry.path.parent().and_then(|p| worktree.entry_for_path(p))
 453                        {
 454                            entry = parent_entry;
 455                        } else {
 456                            break;
 457                        }
 458                    }
 459                }
 460            }
 461        }
 462    }
 463
 464    fn toggle_expanded(&mut self, entry_id: ProjectEntryId, cx: &mut ViewContext<Self>) {
 465        if let Some(worktree_id) = self.project.read(cx).worktree_id_for_entry(entry_id, cx) {
 466            if let Some(expanded_dir_ids) = self.expanded_dir_ids.get_mut(&worktree_id) {
 467                match expanded_dir_ids.binary_search(&entry_id) {
 468                    Ok(ix) => {
 469                        expanded_dir_ids.remove(ix);
 470                    }
 471                    Err(ix) => {
 472                        expanded_dir_ids.insert(ix, entry_id);
 473                    }
 474                }
 475                self.update_visible_entries(Some((worktree_id, entry_id)), cx);
 476                cx.focus_self();
 477                cx.notify();
 478            }
 479        }
 480    }
 481
 482    fn select_prev(&mut self, _: &SelectPrev, cx: &mut ViewContext<Self>) {
 483        if let Some(selection) = self.selection {
 484            let (mut worktree_ix, mut entry_ix, _) =
 485                self.index_for_selection(selection).unwrap_or_default();
 486            if entry_ix > 0 {
 487                entry_ix -= 1;
 488            } else if worktree_ix > 0 {
 489                worktree_ix -= 1;
 490                entry_ix = self.visible_entries[worktree_ix].1.len() - 1;
 491            } else {
 492                return;
 493            }
 494
 495            let (worktree_id, worktree_entries) = &self.visible_entries[worktree_ix];
 496            self.selection = Some(Selection {
 497                worktree_id: *worktree_id,
 498                entry_id: worktree_entries[entry_ix].id,
 499            });
 500            self.autoscroll(cx);
 501            cx.notify();
 502        } else {
 503            self.select_first(cx);
 504        }
 505    }
 506
 507    fn confirm(&mut self, _: &Confirm, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
 508        if let Some(task) = self.confirm_edit(cx) {
 509            Some(task)
 510        } else if let Some((_, entry)) = self.selected_entry(cx) {
 511            if entry.is_file() {
 512                self.open_entry(entry.id, true, cx);
 513            }
 514            None
 515        } else {
 516            None
 517        }
 518    }
 519
 520    fn confirm_edit(&mut self, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
 521        let edit_state = self.edit_state.as_mut()?;
 522        cx.focus_self();
 523
 524        let worktree_id = edit_state.worktree_id;
 525        let is_new_entry = edit_state.is_new_entry;
 526        let is_dir = edit_state.is_dir;
 527        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
 528        let entry = worktree.read(cx).entry_for_id(edit_state.entry_id)?.clone();
 529        let filename = self.filename_editor.read(cx).text(cx);
 530
 531        let path_already_exists = |path| worktree.read(cx).entry_for_path(path).is_some();
 532        let edit_task;
 533        let edited_entry_id;
 534        if is_new_entry {
 535            self.selection = Some(Selection {
 536                worktree_id,
 537                entry_id: NEW_ENTRY_ID,
 538            });
 539            let new_path = entry.path.join(&filename);
 540            if path_already_exists(new_path.as_path()) {
 541                return None;
 542            }
 543
 544            edited_entry_id = NEW_ENTRY_ID;
 545            edit_task = self.project.update(cx, |project, cx| {
 546                project.create_entry((worktree_id, &new_path), is_dir, cx)
 547            })?;
 548        } else {
 549            let new_path = if let Some(parent) = entry.path.clone().parent() {
 550                parent.join(&filename)
 551            } else {
 552                filename.clone().into()
 553            };
 554            if path_already_exists(new_path.as_path()) {
 555                return None;
 556            }
 557
 558            edited_entry_id = entry.id;
 559            edit_task = self.project.update(cx, |project, cx| {
 560                project.rename_entry(entry.id, new_path.as_path(), cx)
 561            })?;
 562        };
 563
 564        edit_state.processing_filename = Some(filename);
 565        cx.notify();
 566
 567        Some(cx.spawn(|this, mut cx| async move {
 568            let new_entry = edit_task.await;
 569            this.update(&mut cx, |this, cx| {
 570                this.edit_state.take();
 571                cx.notify();
 572            })?;
 573
 574            let new_entry = new_entry?;
 575            this.update(&mut cx, |this, cx| {
 576                if let Some(selection) = &mut this.selection {
 577                    if selection.entry_id == edited_entry_id {
 578                        selection.worktree_id = worktree_id;
 579                        selection.entry_id = new_entry.id;
 580                    }
 581                }
 582                this.update_visible_entries(None, cx);
 583                if is_new_entry && !is_dir {
 584                    this.open_entry(new_entry.id, true, cx);
 585                }
 586                cx.notify();
 587            })?;
 588            Ok(())
 589        }))
 590    }
 591
 592    fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
 593        self.edit_state = None;
 594        self.update_visible_entries(None, cx);
 595        cx.focus_self();
 596        cx.notify();
 597    }
 598
 599    fn open_entry(
 600        &mut self,
 601        entry_id: ProjectEntryId,
 602        focus_opened_item: bool,
 603        cx: &mut ViewContext<Self>,
 604    ) {
 605        cx.emit(Event::OpenedEntry {
 606            entry_id,
 607            focus_opened_item,
 608        });
 609    }
 610
 611    fn new_file(&mut self, _: &NewFile, cx: &mut ViewContext<Self>) {
 612        self.add_entry(false, cx)
 613    }
 614
 615    fn new_directory(&mut self, _: &NewDirectory, cx: &mut ViewContext<Self>) {
 616        self.add_entry(true, cx)
 617    }
 618
 619    fn add_entry(&mut self, is_dir: bool, cx: &mut ViewContext<Self>) {
 620        if let Some(Selection {
 621            worktree_id,
 622            entry_id,
 623        }) = self.selection
 624        {
 625            let directory_id;
 626            if let Some((worktree, expanded_dir_ids)) = self
 627                .project
 628                .read(cx)
 629                .worktree_for_id(worktree_id, cx)
 630                .zip(self.expanded_dir_ids.get_mut(&worktree_id))
 631            {
 632                let worktree = worktree.read(cx);
 633                if let Some(mut entry) = worktree.entry_for_id(entry_id) {
 634                    loop {
 635                        if entry.is_dir() {
 636                            if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
 637                                expanded_dir_ids.insert(ix, entry.id);
 638                            }
 639                            directory_id = entry.id;
 640                            break;
 641                        } else {
 642                            if let Some(parent_path) = entry.path.parent() {
 643                                if let Some(parent_entry) = worktree.entry_for_path(parent_path) {
 644                                    entry = parent_entry;
 645                                    continue;
 646                                }
 647                            }
 648                            return;
 649                        }
 650                    }
 651                } else {
 652                    return;
 653                };
 654            } else {
 655                return;
 656            };
 657
 658            self.edit_state = Some(EditState {
 659                worktree_id,
 660                entry_id: directory_id,
 661                is_new_entry: true,
 662                is_dir,
 663                processing_filename: None,
 664            });
 665            self.filename_editor
 666                .update(cx, |editor, cx| editor.clear(cx));
 667            cx.focus(&self.filename_editor);
 668            self.update_visible_entries(Some((worktree_id, NEW_ENTRY_ID)), cx);
 669            self.autoscroll(cx);
 670            cx.notify();
 671        }
 672    }
 673
 674    fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) {
 675        if let Some(Selection {
 676            worktree_id,
 677            entry_id,
 678        }) = self.selection
 679        {
 680            if let Some(worktree) = self.project.read(cx).worktree_for_id(worktree_id, cx) {
 681                if let Some(entry) = worktree.read(cx).entry_for_id(entry_id) {
 682                    self.edit_state = Some(EditState {
 683                        worktree_id,
 684                        entry_id,
 685                        is_new_entry: false,
 686                        is_dir: entry.is_dir(),
 687                        processing_filename: None,
 688                    });
 689                    let filename = entry
 690                        .path
 691                        .file_name()
 692                        .map_or(String::new(), |s| s.to_string_lossy().to_string());
 693                    self.filename_editor.update(cx, |editor, cx| {
 694                        editor.set_text(filename, cx);
 695                        editor.select_all(&Default::default(), cx);
 696                    });
 697                    cx.focus(&self.filename_editor);
 698                    self.update_visible_entries(None, cx);
 699                    self.autoscroll(cx);
 700                    cx.notify();
 701                }
 702            }
 703
 704            cx.update_global(|drag_and_drop: &mut DragAndDrop<Workspace>, cx| {
 705                drag_and_drop.cancel_dragging::<ProjectEntryId>(cx);
 706            })
 707        }
 708    }
 709
 710    fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
 711        let Selection { entry_id, .. } = self.selection?;
 712        let path = self.project.read(cx).path_for_entry(entry_id, cx)?.path;
 713        let file_name = path.file_name()?;
 714
 715        let mut answer = cx.prompt(
 716            PromptLevel::Info,
 717            &format!("Delete {file_name:?}?"),
 718            &["Delete", "Cancel"],
 719        );
 720        Some(cx.spawn(|this, mut cx| async move {
 721            if answer.next().await != Some(0) {
 722                return Ok(());
 723            }
 724            this.update(&mut cx, |this, cx| {
 725                this.project
 726                    .update(cx, |project, cx| project.delete_entry(entry_id, cx))
 727                    .ok_or_else(|| anyhow!("no such entry"))
 728            })??
 729            .await
 730        }))
 731    }
 732
 733    fn select_next(&mut self, _: &SelectNext, cx: &mut ViewContext<Self>) {
 734        if let Some(selection) = self.selection {
 735            let (mut worktree_ix, mut entry_ix, _) =
 736                self.index_for_selection(selection).unwrap_or_default();
 737            if let Some((_, worktree_entries)) = self.visible_entries.get(worktree_ix) {
 738                if entry_ix + 1 < worktree_entries.len() {
 739                    entry_ix += 1;
 740                } else {
 741                    worktree_ix += 1;
 742                    entry_ix = 0;
 743                }
 744            }
 745
 746            if let Some((worktree_id, worktree_entries)) = self.visible_entries.get(worktree_ix) {
 747                if let Some(entry) = worktree_entries.get(entry_ix) {
 748                    self.selection = Some(Selection {
 749                        worktree_id: *worktree_id,
 750                        entry_id: entry.id,
 751                    });
 752                    self.autoscroll(cx);
 753                    cx.notify();
 754                }
 755            }
 756        } else {
 757            self.select_first(cx);
 758        }
 759    }
 760
 761    fn select_first(&mut self, cx: &mut ViewContext<Self>) {
 762        let worktree = self
 763            .visible_entries
 764            .first()
 765            .and_then(|(worktree_id, _)| self.project.read(cx).worktree_for_id(*worktree_id, cx));
 766        if let Some(worktree) = worktree {
 767            let worktree = worktree.read(cx);
 768            let worktree_id = worktree.id();
 769            if let Some(root_entry) = worktree.root_entry() {
 770                self.selection = Some(Selection {
 771                    worktree_id,
 772                    entry_id: root_entry.id,
 773                });
 774                self.autoscroll(cx);
 775                cx.notify();
 776            }
 777        }
 778    }
 779
 780    fn autoscroll(&mut self, cx: &mut ViewContext<Self>) {
 781        if let Some((_, _, index)) = self.selection.and_then(|s| self.index_for_selection(s)) {
 782            self.list.scroll_to(ScrollTarget::Show(index));
 783            cx.notify();
 784        }
 785    }
 786
 787    fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
 788        if let Some((worktree, entry)) = self.selected_entry(cx) {
 789            self.clipboard_entry = Some(ClipboardEntry::Cut {
 790                worktree_id: worktree.id(),
 791                entry_id: entry.id,
 792            });
 793            cx.notify();
 794        }
 795    }
 796
 797    fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
 798        if let Some((worktree, entry)) = self.selected_entry(cx) {
 799            self.clipboard_entry = Some(ClipboardEntry::Copied {
 800                worktree_id: worktree.id(),
 801                entry_id: entry.id,
 802            });
 803            cx.notify();
 804        }
 805    }
 806
 807    fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) -> Option<()> {
 808        if let Some((worktree, entry)) = self.selected_entry(cx) {
 809            let clipboard_entry = self.clipboard_entry?;
 810            if clipboard_entry.worktree_id() != worktree.id() {
 811                return None;
 812            }
 813
 814            let clipboard_entry_file_name = self
 815                .project
 816                .read(cx)
 817                .path_for_entry(clipboard_entry.entry_id(), cx)?
 818                .path
 819                .file_name()?
 820                .to_os_string();
 821
 822            let mut new_path = entry.path.to_path_buf();
 823            if entry.is_file() {
 824                new_path.pop();
 825            }
 826
 827            new_path.push(&clipboard_entry_file_name);
 828            let extension = new_path.extension().map(|e| e.to_os_string());
 829            let file_name_without_extension = Path::new(&clipboard_entry_file_name).file_stem()?;
 830            let mut ix = 0;
 831            while worktree.entry_for_path(&new_path).is_some() {
 832                new_path.pop();
 833
 834                let mut new_file_name = file_name_without_extension.to_os_string();
 835                new_file_name.push(" copy");
 836                if ix > 0 {
 837                    new_file_name.push(format!(" {}", ix));
 838                }
 839                if let Some(extension) = extension.as_ref() {
 840                    new_file_name.push(".");
 841                    new_file_name.push(extension);
 842                }
 843
 844                new_path.push(new_file_name);
 845                ix += 1;
 846            }
 847
 848            if clipboard_entry.is_cut() {
 849                if let Some(task) = self.project.update(cx, |project, cx| {
 850                    project.rename_entry(clipboard_entry.entry_id(), new_path, cx)
 851                }) {
 852                    task.detach_and_log_err(cx)
 853                }
 854            } else if let Some(task) = self.project.update(cx, |project, cx| {
 855                project.copy_entry(clipboard_entry.entry_id(), new_path, cx)
 856            }) {
 857                task.detach_and_log_err(cx)
 858            }
 859        }
 860        None
 861    }
 862
 863    fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
 864        if let Some((worktree, entry)) = self.selected_entry(cx) {
 865            cx.write_to_clipboard(ClipboardItem::new(
 866                worktree
 867                    .abs_path()
 868                    .join(&entry.path)
 869                    .to_string_lossy()
 870                    .to_string(),
 871            ));
 872        }
 873    }
 874
 875    fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
 876        if let Some((_, entry)) = self.selected_entry(cx) {
 877            cx.write_to_clipboard(ClipboardItem::new(entry.path.to_string_lossy().to_string()));
 878        }
 879    }
 880
 881    fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
 882        if let Some((worktree, entry)) = self.selected_entry(cx) {
 883            cx.reveal_path(&worktree.abs_path().join(&entry.path));
 884        }
 885    }
 886
 887    fn move_entry(
 888        &mut self,
 889        entry_to_move: ProjectEntryId,
 890        destination: ProjectEntryId,
 891        destination_is_file: bool,
 892        cx: &mut ViewContext<Self>,
 893    ) {
 894        let destination_worktree = self.project.update(cx, |project, cx| {
 895            let entry_path = project.path_for_entry(entry_to_move, cx)?;
 896            let destination_entry_path = project.path_for_entry(destination, cx)?.path.clone();
 897
 898            let mut destination_path = destination_entry_path.as_ref();
 899            if destination_is_file {
 900                destination_path = destination_path.parent()?;
 901            }
 902
 903            let mut new_path = destination_path.to_path_buf();
 904            new_path.push(entry_path.path.file_name()?);
 905            if new_path != entry_path.path.as_ref() {
 906                let task = project.rename_entry(entry_to_move, new_path, cx)?;
 907                cx.foreground().spawn(task).detach_and_log_err(cx);
 908            }
 909
 910            Some(project.worktree_id_for_entry(destination, cx)?)
 911        });
 912
 913        if let Some(destination_worktree) = destination_worktree {
 914            self.expand_entry(destination_worktree, destination, cx);
 915        }
 916    }
 917
 918    fn index_for_selection(&self, selection: Selection) -> Option<(usize, usize, usize)> {
 919        let mut entry_index = 0;
 920        let mut visible_entries_index = 0;
 921        for (worktree_index, (worktree_id, worktree_entries)) in
 922            self.visible_entries.iter().enumerate()
 923        {
 924            if *worktree_id == selection.worktree_id {
 925                for entry in worktree_entries {
 926                    if entry.id == selection.entry_id {
 927                        return Some((worktree_index, entry_index, visible_entries_index));
 928                    } else {
 929                        visible_entries_index += 1;
 930                        entry_index += 1;
 931                    }
 932                }
 933                break;
 934            } else {
 935                visible_entries_index += worktree_entries.len();
 936            }
 937        }
 938        None
 939    }
 940
 941    fn selected_entry<'a>(&self, cx: &'a AppContext) -> Option<(&'a Worktree, &'a project::Entry)> {
 942        let selection = self.selection?;
 943        let project = self.project.read(cx);
 944        let worktree = project.worktree_for_id(selection.worktree_id, cx)?.read(cx);
 945        Some((worktree, worktree.entry_for_id(selection.entry_id)?))
 946    }
 947
 948    fn update_visible_entries(
 949        &mut self,
 950        new_selected_entry: Option<(WorktreeId, ProjectEntryId)>,
 951        cx: &mut ViewContext<Self>,
 952    ) {
 953        let project = self.project.read(cx);
 954        self.last_worktree_root_id = project
 955            .visible_worktrees(cx)
 956            .rev()
 957            .next()
 958            .and_then(|worktree| worktree.read(cx).root_entry())
 959            .map(|entry| entry.id);
 960
 961        self.visible_entries.clear();
 962        for worktree in project.visible_worktrees(cx) {
 963            let snapshot = worktree.read(cx).snapshot();
 964            let worktree_id = snapshot.id();
 965
 966            let expanded_dir_ids = match self.expanded_dir_ids.entry(worktree_id) {
 967                hash_map::Entry::Occupied(e) => e.into_mut(),
 968                hash_map::Entry::Vacant(e) => {
 969                    // The first time a worktree's root entry becomes available,
 970                    // mark that root entry as expanded.
 971                    if let Some(entry) = snapshot.root_entry() {
 972                        e.insert(vec![entry.id]).as_slice()
 973                    } else {
 974                        &[]
 975                    }
 976                }
 977            };
 978
 979            let mut new_entry_parent_id = None;
 980            let mut new_entry_kind = EntryKind::Dir;
 981            if let Some(edit_state) = &self.edit_state {
 982                if edit_state.worktree_id == worktree_id && edit_state.is_new_entry {
 983                    new_entry_parent_id = Some(edit_state.entry_id);
 984                    new_entry_kind = if edit_state.is_dir {
 985                        EntryKind::Dir
 986                    } else {
 987                        EntryKind::File(Default::default())
 988                    };
 989                }
 990            }
 991
 992            let mut visible_worktree_entries = Vec::new();
 993            let mut entry_iter = snapshot.entries(true);
 994
 995            while let Some(entry) = entry_iter.entry() {
 996                visible_worktree_entries.push(entry.clone());
 997                if Some(entry.id) == new_entry_parent_id {
 998                    visible_worktree_entries.push(Entry {
 999                        id: NEW_ENTRY_ID,
1000                        kind: new_entry_kind,
1001                        path: entry.path.join("\0").into(),
1002                        inode: 0,
1003                        mtime: entry.mtime,
1004                        is_symlink: false,
1005                        is_ignored: false,
1006                        git_status: entry.git_status,
1007                    });
1008                }
1009                if expanded_dir_ids.binary_search(&entry.id).is_err()
1010                    && entry_iter.advance_to_sibling()
1011                {
1012                    continue;
1013                }
1014                entry_iter.advance();
1015            }
1016
1017            snapshot.propagate_git_statuses(&mut visible_worktree_entries);
1018
1019            visible_worktree_entries.sort_by(|entry_a, entry_b| {
1020                let mut components_a = entry_a.path.components().peekable();
1021                let mut components_b = entry_b.path.components().peekable();
1022                loop {
1023                    match (components_a.next(), components_b.next()) {
1024                        (Some(component_a), Some(component_b)) => {
1025                            let a_is_file = components_a.peek().is_none() && entry_a.is_file();
1026                            let b_is_file = components_b.peek().is_none() && entry_b.is_file();
1027                            let ordering = a_is_file.cmp(&b_is_file).then_with(|| {
1028                                let name_a =
1029                                    UniCase::new(component_a.as_os_str().to_string_lossy());
1030                                let name_b =
1031                                    UniCase::new(component_b.as_os_str().to_string_lossy());
1032                                name_a.cmp(&name_b)
1033                            });
1034                            if !ordering.is_eq() {
1035                                return ordering;
1036                            }
1037                        }
1038                        (Some(_), None) => break Ordering::Greater,
1039                        (None, Some(_)) => break Ordering::Less,
1040                        (None, None) => break Ordering::Equal,
1041                    }
1042                }
1043            });
1044            self.visible_entries
1045                .push((worktree_id, visible_worktree_entries));
1046        }
1047
1048        if let Some((worktree_id, entry_id)) = new_selected_entry {
1049            self.selection = Some(Selection {
1050                worktree_id,
1051                entry_id,
1052            });
1053        }
1054    }
1055
1056    fn expand_entry(
1057        &mut self,
1058        worktree_id: WorktreeId,
1059        entry_id: ProjectEntryId,
1060        cx: &mut ViewContext<Self>,
1061    ) {
1062        let project = self.project.read(cx);
1063        if let Some((worktree, expanded_dir_ids)) = project
1064            .worktree_for_id(worktree_id, cx)
1065            .zip(self.expanded_dir_ids.get_mut(&worktree_id))
1066        {
1067            let worktree = worktree.read(cx);
1068
1069            if let Some(mut entry) = worktree.entry_for_id(entry_id) {
1070                loop {
1071                    if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
1072                        expanded_dir_ids.insert(ix, entry.id);
1073                    }
1074
1075                    if let Some(parent_entry) =
1076                        entry.path.parent().and_then(|p| worktree.entry_for_path(p))
1077                    {
1078                        entry = parent_entry;
1079                    } else {
1080                        break;
1081                    }
1082                }
1083            }
1084        }
1085    }
1086
1087    fn for_each_visible_entry(
1088        &self,
1089        range: Range<usize>,
1090        cx: &mut ViewContext<ProjectPanel>,
1091        mut callback: impl FnMut(ProjectEntryId, EntryDetails, &mut ViewContext<ProjectPanel>),
1092    ) {
1093        let mut ix = 0;
1094        for (worktree_id, visible_worktree_entries) in &self.visible_entries {
1095            if ix >= range.end {
1096                return;
1097            }
1098
1099            if ix + visible_worktree_entries.len() <= range.start {
1100                ix += visible_worktree_entries.len();
1101                continue;
1102            }
1103
1104            let end_ix = range.end.min(ix + visible_worktree_entries.len());
1105            let git_status_setting = settings::get::<ProjectPanelSettings>(cx).git_status;
1106            if let Some(worktree) = self.project.read(cx).worktree_for_id(*worktree_id, cx) {
1107                let snapshot = worktree.read(cx).snapshot();
1108                let root_name = OsStr::new(snapshot.root_name());
1109                let expanded_entry_ids = self
1110                    .expanded_dir_ids
1111                    .get(&snapshot.id())
1112                    .map(Vec::as_slice)
1113                    .unwrap_or(&[]);
1114
1115                let entry_range = range.start.saturating_sub(ix)..end_ix - ix;
1116                for entry in visible_worktree_entries[entry_range].iter() {
1117                    let status = git_status_setting.then(|| entry.git_status).flatten();
1118
1119                    let mut details = EntryDetails {
1120                        filename: entry
1121                            .path
1122                            .file_name()
1123                            .unwrap_or(root_name)
1124                            .to_string_lossy()
1125                            .to_string(),
1126                        path: entry.path.clone(),
1127                        depth: entry.path.components().count(),
1128                        kind: entry.kind,
1129                        is_ignored: entry.is_ignored,
1130                        is_expanded: expanded_entry_ids.binary_search(&entry.id).is_ok(),
1131                        is_selected: self.selection.map_or(false, |e| {
1132                            e.worktree_id == snapshot.id() && e.entry_id == entry.id
1133                        }),
1134                        is_editing: false,
1135                        is_processing: false,
1136                        is_cut: self
1137                            .clipboard_entry
1138                            .map_or(false, |e| e.is_cut() && e.entry_id() == entry.id),
1139                        git_status: status,
1140                    };
1141
1142                    if let Some(edit_state) = &self.edit_state {
1143                        let is_edited_entry = if edit_state.is_new_entry {
1144                            entry.id == NEW_ENTRY_ID
1145                        } else {
1146                            entry.id == edit_state.entry_id
1147                        };
1148
1149                        if is_edited_entry {
1150                            if let Some(processing_filename) = &edit_state.processing_filename {
1151                                details.is_processing = true;
1152                                details.filename.clear();
1153                                details.filename.push_str(processing_filename);
1154                            } else {
1155                                if edit_state.is_new_entry {
1156                                    details.filename.clear();
1157                                }
1158                                details.is_editing = true;
1159                            }
1160                        }
1161                    }
1162
1163                    callback(entry.id, details, cx);
1164                }
1165            }
1166            ix = end_ix;
1167        }
1168    }
1169
1170    fn render_entry_visual_element<V: View>(
1171        details: &EntryDetails,
1172        editor: Option<&ViewHandle<Editor>>,
1173        padding: f32,
1174        row_container_style: ContainerStyle,
1175        style: &ProjectPanelEntry,
1176        cx: &mut ViewContext<V>,
1177    ) -> AnyElement<V> {
1178        let kind = details.kind;
1179        let show_editor = details.is_editing && !details.is_processing;
1180
1181        let mut filename_text_style = style.text.clone();
1182        filename_text_style.color = details
1183            .git_status
1184            .as_ref()
1185            .map(|status| match status {
1186                GitFileStatus::Added => style.status.git.inserted,
1187                GitFileStatus::Modified => style.status.git.modified,
1188                GitFileStatus::Conflict => style.status.git.conflict,
1189            })
1190            .unwrap_or(style.text.color);
1191
1192        Flex::row()
1193            .with_child(
1194                if kind == EntryKind::Dir {
1195                    if details.is_expanded {
1196                        Svg::new("icons/chevron_down_8.svg").with_color(style.icon_color)
1197                    } else {
1198                        Svg::new("icons/chevron_right_8.svg").with_color(style.icon_color)
1199                    }
1200                    .constrained()
1201                } else {
1202                    Empty::new().constrained()
1203                }
1204                .with_max_width(style.icon_size)
1205                .with_max_height(style.icon_size)
1206                .aligned()
1207                .constrained()
1208                .with_width(style.icon_size),
1209            )
1210            .with_child(if show_editor && editor.is_some() {
1211                ChildView::new(editor.as_ref().unwrap(), cx)
1212                    .contained()
1213                    .with_margin_left(style.icon_spacing)
1214                    .aligned()
1215                    .left()
1216                    .flex(1.0, true)
1217                    .into_any()
1218            } else {
1219                Label::new(details.filename.clone(), filename_text_style)
1220                    .contained()
1221                    .with_margin_left(style.icon_spacing)
1222                    .aligned()
1223                    .left()
1224                    .into_any()
1225            })
1226            .constrained()
1227            .with_height(style.height)
1228            .contained()
1229            .with_style(row_container_style)
1230            .with_padding_left(padding)
1231            .into_any_named("project panel entry visual element")
1232    }
1233
1234    fn render_entry(
1235        entry_id: ProjectEntryId,
1236        details: EntryDetails,
1237        editor: &ViewHandle<Editor>,
1238        dragged_entry_destination: &mut Option<Arc<Path>>,
1239        theme: &theme::ProjectPanel,
1240        cx: &mut ViewContext<Self>,
1241    ) -> AnyElement<Self> {
1242        let kind = details.kind;
1243        let path = details.path.clone();
1244        let padding = theme.container.padding.left + details.depth as f32 * theme.indent_width;
1245
1246        let entry_style = if details.is_cut {
1247            &theme.cut_entry
1248        } else if details.is_ignored {
1249            &theme.ignored_entry
1250        } else {
1251            &theme.entry
1252        };
1253
1254        let show_editor = details.is_editing && !details.is_processing;
1255
1256        MouseEventHandler::<Self, _>::new(entry_id.to_usize(), cx, |state, cx| {
1257            let mut style = entry_style.style_for(state, details.is_selected).clone();
1258
1259            if cx
1260                .global::<DragAndDrop<Workspace>>()
1261                .currently_dragged::<ProjectEntryId>(cx.window_id())
1262                .is_some()
1263                && dragged_entry_destination
1264                    .as_ref()
1265                    .filter(|destination| details.path.starts_with(destination))
1266                    .is_some()
1267            {
1268                style = entry_style.active.clone().unwrap();
1269            }
1270
1271            let row_container_style = if show_editor {
1272                theme.filename_editor.container
1273            } else {
1274                style.container
1275            };
1276
1277            Self::render_entry_visual_element(
1278                &details,
1279                Some(editor),
1280                padding,
1281                row_container_style,
1282                &style,
1283                cx,
1284            )
1285        })
1286        .on_click(MouseButton::Left, move |event, this, cx| {
1287            if !show_editor {
1288                if kind == EntryKind::Dir {
1289                    this.toggle_expanded(entry_id, cx);
1290                } else {
1291                    this.open_entry(entry_id, event.click_count > 1, cx);
1292                }
1293            }
1294        })
1295        .on_down(MouseButton::Right, move |event, this, cx| {
1296            this.deploy_context_menu(event.position, entry_id, cx);
1297        })
1298        .on_up(MouseButton::Left, move |_, this, cx| {
1299            if let Some((_, dragged_entry)) = cx
1300                .global::<DragAndDrop<Workspace>>()
1301                .currently_dragged::<ProjectEntryId>(cx.window_id())
1302            {
1303                this.move_entry(
1304                    *dragged_entry,
1305                    entry_id,
1306                    matches!(details.kind, EntryKind::File(_)),
1307                    cx,
1308                );
1309            }
1310        })
1311        .on_move(move |_, this, cx| {
1312            if cx
1313                .global::<DragAndDrop<Workspace>>()
1314                .currently_dragged::<ProjectEntryId>(cx.window_id())
1315                .is_some()
1316            {
1317                this.dragged_entry_destination = if matches!(kind, EntryKind::File(_)) {
1318                    path.parent().map(|parent| Arc::from(parent))
1319                } else {
1320                    Some(path.clone())
1321                };
1322            }
1323        })
1324        .as_draggable(entry_id, {
1325            let row_container_style = theme.dragged_entry.container;
1326
1327            move |_, cx: &mut ViewContext<Workspace>| {
1328                let theme = theme::current(cx).clone();
1329                Self::render_entry_visual_element(
1330                    &details,
1331                    None,
1332                    padding,
1333                    row_container_style,
1334                    &theme.project_panel.dragged_entry,
1335                    cx,
1336                )
1337            }
1338        })
1339        .with_cursor_style(CursorStyle::PointingHand)
1340        .into_any_named("project panel entry")
1341    }
1342}
1343
1344impl View for ProjectPanel {
1345    fn ui_name() -> &'static str {
1346        "ProjectPanel"
1347    }
1348
1349    fn render(&mut self, cx: &mut gpui::ViewContext<Self>) -> gpui::AnyElement<Self> {
1350        enum ProjectPanel {}
1351        let theme = &theme::current(cx).project_panel;
1352        let mut container_style = theme.container;
1353        let padding = std::mem::take(&mut container_style.padding);
1354        let last_worktree_root_id = self.last_worktree_root_id;
1355
1356        let has_worktree = self.visible_entries.len() != 0;
1357
1358        if has_worktree {
1359            Stack::new()
1360                .with_child(
1361                    MouseEventHandler::<ProjectPanel, _>::new(0, cx, |_, cx| {
1362                        UniformList::new(
1363                            self.list.clone(),
1364                            self.visible_entries
1365                                .iter()
1366                                .map(|(_, worktree_entries)| worktree_entries.len())
1367                                .sum(),
1368                            cx,
1369                            move |this, range, items, cx| {
1370                                let theme = theme::current(cx).clone();
1371                                let mut dragged_entry_destination =
1372                                    this.dragged_entry_destination.clone();
1373                                this.for_each_visible_entry(range, cx, |id, details, cx| {
1374                                    items.push(Self::render_entry(
1375                                        id,
1376                                        details,
1377                                        &this.filename_editor,
1378                                        &mut dragged_entry_destination,
1379                                        &theme.project_panel,
1380                                        cx,
1381                                    ));
1382                                });
1383                                this.dragged_entry_destination = dragged_entry_destination;
1384                            },
1385                        )
1386                        .with_padding_top(padding.top)
1387                        .with_padding_bottom(padding.bottom)
1388                        .contained()
1389                        .with_style(container_style)
1390                        .expanded()
1391                    })
1392                    .on_down(MouseButton::Right, move |event, this, cx| {
1393                        // When deploying the context menu anywhere below the last project entry,
1394                        // act as if the user clicked the root of the last worktree.
1395                        if let Some(entry_id) = last_worktree_root_id {
1396                            this.deploy_context_menu(event.position, entry_id, cx);
1397                        }
1398                    }),
1399                )
1400                .with_child(ChildView::new(&self.context_menu, cx))
1401                .into_any_named("project panel")
1402        } else {
1403            Flex::column()
1404                .with_child(
1405                    MouseEventHandler::<Self, _>::new(2, cx, {
1406                        let button_style = theme.open_project_button.clone();
1407                        let context_menu_item_style = theme::current(cx).context_menu.item.clone();
1408                        move |state, cx| {
1409                            let button_style = button_style.style_for(state, false).clone();
1410                            let context_menu_item =
1411                                context_menu_item_style.style_for(state, true).clone();
1412
1413                            theme::ui::keystroke_label(
1414                                "Open a project",
1415                                &button_style,
1416                                &context_menu_item.keystroke,
1417                                Box::new(workspace::Open),
1418                                cx,
1419                            )
1420                        }
1421                    })
1422                    .on_click(MouseButton::Left, move |_, this, cx| {
1423                        if let Some(workspace) = this.workspace.upgrade(cx) {
1424                            workspace.update(cx, |workspace, cx| {
1425                                if let Some(task) = workspace.open(&Default::default(), cx) {
1426                                    task.detach_and_log_err(cx);
1427                                }
1428                            })
1429                        }
1430                    })
1431                    .with_cursor_style(CursorStyle::PointingHand),
1432                )
1433                .contained()
1434                .with_style(container_style)
1435                .into_any_named("empty project panel")
1436        }
1437    }
1438
1439    fn update_keymap_context(&self, keymap: &mut KeymapContext, _: &AppContext) {
1440        Self::reset_to_default_keymap_context(keymap);
1441        keymap.add_identifier("menu");
1442    }
1443
1444    fn focus_in(&mut self, _: gpui::AnyViewHandle, cx: &mut ViewContext<Self>) {
1445        if !self.has_focus {
1446            self.has_focus = true;
1447            cx.emit(Event::Focus);
1448        }
1449    }
1450
1451    fn focus_out(&mut self, _: gpui::AnyViewHandle, _: &mut ViewContext<Self>) {
1452        self.has_focus = false;
1453    }
1454}
1455
1456impl Entity for ProjectPanel {
1457    type Event = Event;
1458}
1459
1460impl workspace::dock::Panel for ProjectPanel {
1461    fn position(&self, cx: &WindowContext) -> DockPosition {
1462        match settings::get::<ProjectPanelSettings>(cx).dock {
1463            ProjectPanelDockPosition::Left => DockPosition::Left,
1464            ProjectPanelDockPosition::Right => DockPosition::Right,
1465        }
1466    }
1467
1468    fn position_is_valid(&self, position: DockPosition) -> bool {
1469        matches!(position, DockPosition::Left | DockPosition::Right)
1470    }
1471
1472    fn set_position(&mut self, position: DockPosition, cx: &mut ViewContext<Self>) {
1473        settings::update_settings_file::<ProjectPanelSettings>(
1474            self.fs.clone(),
1475            cx,
1476            move |settings| {
1477                let dock = match position {
1478                    DockPosition::Left | DockPosition::Bottom => ProjectPanelDockPosition::Left,
1479                    DockPosition::Right => ProjectPanelDockPosition::Right,
1480                };
1481                settings.dock = Some(dock);
1482            },
1483        );
1484    }
1485
1486    fn size(&self, cx: &WindowContext) -> f32 {
1487        self.width
1488            .unwrap_or_else(|| settings::get::<ProjectPanelSettings>(cx).default_width)
1489    }
1490
1491    fn set_size(&mut self, size: f32, cx: &mut ViewContext<Self>) {
1492        self.width = Some(size);
1493        self.serialize(cx);
1494        cx.notify();
1495    }
1496
1497    fn should_zoom_in_on_event(_: &Self::Event) -> bool {
1498        false
1499    }
1500
1501    fn should_zoom_out_on_event(_: &Self::Event) -> bool {
1502        false
1503    }
1504
1505    fn is_zoomed(&self, _: &WindowContext) -> bool {
1506        false
1507    }
1508
1509    fn set_zoomed(&mut self, _: bool, _: &mut ViewContext<Self>) {}
1510
1511    fn set_active(&mut self, _: bool, _: &mut ViewContext<Self>) {}
1512
1513    fn icon_path(&self) -> &'static str {
1514        "icons/folder_tree_16.svg"
1515    }
1516
1517    fn icon_tooltip(&self) -> (String, Option<Box<dyn Action>>) {
1518        ("Project Panel".into(), Some(Box::new(ToggleFocus)))
1519    }
1520
1521    fn should_change_position_on_event(event: &Self::Event) -> bool {
1522        matches!(event, Event::DockPositionChanged)
1523    }
1524
1525    fn should_activate_on_event(_: &Self::Event) -> bool {
1526        false
1527    }
1528
1529    fn should_close_on_event(_: &Self::Event) -> bool {
1530        false
1531    }
1532
1533    fn has_focus(&self, _: &WindowContext) -> bool {
1534        self.has_focus
1535    }
1536
1537    fn is_focus_event(event: &Self::Event) -> bool {
1538        matches!(event, Event::Focus)
1539    }
1540}
1541
1542impl ClipboardEntry {
1543    fn is_cut(&self) -> bool {
1544        matches!(self, Self::Cut { .. })
1545    }
1546
1547    fn entry_id(&self) -> ProjectEntryId {
1548        match self {
1549            ClipboardEntry::Copied { entry_id, .. } | ClipboardEntry::Cut { entry_id, .. } => {
1550                *entry_id
1551            }
1552        }
1553    }
1554
1555    fn worktree_id(&self) -> WorktreeId {
1556        match self {
1557            ClipboardEntry::Copied { worktree_id, .. }
1558            | ClipboardEntry::Cut { worktree_id, .. } => *worktree_id,
1559        }
1560    }
1561}
1562
1563#[cfg(test)]
1564mod tests {
1565    use super::*;
1566    use gpui::{TestAppContext, ViewHandle};
1567    use project::FakeFs;
1568    use serde_json::json;
1569    use settings::SettingsStore;
1570    use std::{collections::HashSet, path::Path};
1571    use workspace::{pane, AppState};
1572
1573    #[gpui::test]
1574    async fn test_visible_list(cx: &mut gpui::TestAppContext) {
1575        init_test(cx);
1576
1577        let fs = FakeFs::new(cx.background());
1578        fs.insert_tree(
1579            "/root1",
1580            json!({
1581                ".dockerignore": "",
1582                ".git": {
1583                    "HEAD": "",
1584                },
1585                "a": {
1586                    "0": { "q": "", "r": "", "s": "" },
1587                    "1": { "t": "", "u": "" },
1588                    "2": { "v": "", "w": "", "x": "", "y": "" },
1589                },
1590                "b": {
1591                    "3": { "Q": "" },
1592                    "4": { "R": "", "S": "", "T": "", "U": "" },
1593                },
1594                "C": {
1595                    "5": {},
1596                    "6": { "V": "", "W": "" },
1597                    "7": { "X": "" },
1598                    "8": { "Y": {}, "Z": "" }
1599                }
1600            }),
1601        )
1602        .await;
1603        fs.insert_tree(
1604            "/root2",
1605            json!({
1606                "d": {
1607                    "9": ""
1608                },
1609                "e": {}
1610            }),
1611        )
1612        .await;
1613
1614        let project = Project::test(fs.clone(), ["/root1".as_ref(), "/root2".as_ref()], cx).await;
1615        let (_, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
1616        let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
1617        assert_eq!(
1618            visible_entries_as_strings(&panel, 0..50, cx),
1619            &[
1620                "v root1",
1621                "    > .git",
1622                "    > a",
1623                "    > b",
1624                "    > C",
1625                "      .dockerignore",
1626                "v root2",
1627                "    > d",
1628                "    > e",
1629            ]
1630        );
1631
1632        toggle_expand_dir(&panel, "root1/b", cx);
1633        assert_eq!(
1634            visible_entries_as_strings(&panel, 0..50, cx),
1635            &[
1636                "v root1",
1637                "    > .git",
1638                "    > a",
1639                "    v b  <== selected",
1640                "        > 3",
1641                "        > 4",
1642                "    > C",
1643                "      .dockerignore",
1644                "v root2",
1645                "    > d",
1646                "    > e",
1647            ]
1648        );
1649
1650        assert_eq!(
1651            visible_entries_as_strings(&panel, 6..9, cx),
1652            &[
1653                //
1654                "    > C",
1655                "      .dockerignore",
1656                "v root2",
1657            ]
1658        );
1659    }
1660
1661    #[gpui::test(iterations = 30)]
1662    async fn test_editing_files(cx: &mut gpui::TestAppContext) {
1663        init_test(cx);
1664
1665        let fs = FakeFs::new(cx.background());
1666        fs.insert_tree(
1667            "/root1",
1668            json!({
1669                ".dockerignore": "",
1670                ".git": {
1671                    "HEAD": "",
1672                },
1673                "a": {
1674                    "0": { "q": "", "r": "", "s": "" },
1675                    "1": { "t": "", "u": "" },
1676                    "2": { "v": "", "w": "", "x": "", "y": "" },
1677                },
1678                "b": {
1679                    "3": { "Q": "" },
1680                    "4": { "R": "", "S": "", "T": "", "U": "" },
1681                },
1682                "C": {
1683                    "5": {},
1684                    "6": { "V": "", "W": "" },
1685                    "7": { "X": "" },
1686                    "8": { "Y": {}, "Z": "" }
1687                }
1688            }),
1689        )
1690        .await;
1691        fs.insert_tree(
1692            "/root2",
1693            json!({
1694                "d": {
1695                    "9": ""
1696                },
1697                "e": {}
1698            }),
1699        )
1700        .await;
1701
1702        let project = Project::test(fs.clone(), ["/root1".as_ref(), "/root2".as_ref()], cx).await;
1703        let (window_id, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
1704        let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
1705
1706        select_path(&panel, "root1", cx);
1707        assert_eq!(
1708            visible_entries_as_strings(&panel, 0..10, cx),
1709            &[
1710                "v root1  <== selected",
1711                "    > .git",
1712                "    > a",
1713                "    > b",
1714                "    > C",
1715                "      .dockerignore",
1716                "v root2",
1717                "    > d",
1718                "    > e",
1719            ]
1720        );
1721
1722        // Add a file with the root folder selected. The filename editor is placed
1723        // before the first file in the root folder.
1724        panel.update(cx, |panel, cx| panel.new_file(&NewFile, cx));
1725        cx.read_window(window_id, |cx| {
1726            let panel = panel.read(cx);
1727            assert!(panel.filename_editor.is_focused(cx));
1728        });
1729        assert_eq!(
1730            visible_entries_as_strings(&panel, 0..10, cx),
1731            &[
1732                "v root1",
1733                "    > .git",
1734                "    > a",
1735                "    > b",
1736                "    > C",
1737                "      [EDITOR: '']  <== selected",
1738                "      .dockerignore",
1739                "v root2",
1740                "    > d",
1741                "    > e",
1742            ]
1743        );
1744
1745        let confirm = panel.update(cx, |panel, cx| {
1746            panel
1747                .filename_editor
1748                .update(cx, |editor, cx| editor.set_text("the-new-filename", cx));
1749            panel.confirm(&Confirm, cx).unwrap()
1750        });
1751        assert_eq!(
1752            visible_entries_as_strings(&panel, 0..10, cx),
1753            &[
1754                "v root1",
1755                "    > .git",
1756                "    > a",
1757                "    > b",
1758                "    > C",
1759                "      [PROCESSING: 'the-new-filename']  <== selected",
1760                "      .dockerignore",
1761                "v root2",
1762                "    > d",
1763                "    > e",
1764            ]
1765        );
1766
1767        confirm.await.unwrap();
1768        assert_eq!(
1769            visible_entries_as_strings(&panel, 0..10, cx),
1770            &[
1771                "v root1",
1772                "    > .git",
1773                "    > a",
1774                "    > b",
1775                "    > C",
1776                "      .dockerignore",
1777                "      the-new-filename  <== selected",
1778                "v root2",
1779                "    > d",
1780                "    > e",
1781            ]
1782        );
1783
1784        select_path(&panel, "root1/b", cx);
1785        panel.update(cx, |panel, cx| panel.new_file(&NewFile, cx));
1786        assert_eq!(
1787            visible_entries_as_strings(&panel, 0..10, cx),
1788            &[
1789                "v root1",
1790                "    > .git",
1791                "    > a",
1792                "    v b",
1793                "        > 3",
1794                "        > 4",
1795                "          [EDITOR: '']  <== selected",
1796                "    > C",
1797                "      .dockerignore",
1798                "      the-new-filename",
1799            ]
1800        );
1801
1802        panel
1803            .update(cx, |panel, cx| {
1804                panel
1805                    .filename_editor
1806                    .update(cx, |editor, cx| editor.set_text("another-filename", cx));
1807                panel.confirm(&Confirm, cx).unwrap()
1808            })
1809            .await
1810            .unwrap();
1811        assert_eq!(
1812            visible_entries_as_strings(&panel, 0..10, cx),
1813            &[
1814                "v root1",
1815                "    > .git",
1816                "    > a",
1817                "    v b",
1818                "        > 3",
1819                "        > 4",
1820                "          another-filename  <== selected",
1821                "    > C",
1822                "      .dockerignore",
1823                "      the-new-filename",
1824            ]
1825        );
1826
1827        select_path(&panel, "root1/b/another-filename", cx);
1828        panel.update(cx, |panel, cx| panel.rename(&Rename, cx));
1829        assert_eq!(
1830            visible_entries_as_strings(&panel, 0..10, cx),
1831            &[
1832                "v root1",
1833                "    > .git",
1834                "    > a",
1835                "    v b",
1836                "        > 3",
1837                "        > 4",
1838                "          [EDITOR: 'another-filename']  <== selected",
1839                "    > C",
1840                "      .dockerignore",
1841                "      the-new-filename",
1842            ]
1843        );
1844
1845        let confirm = panel.update(cx, |panel, cx| {
1846            panel
1847                .filename_editor
1848                .update(cx, |editor, cx| editor.set_text("a-different-filename", cx));
1849            panel.confirm(&Confirm, cx).unwrap()
1850        });
1851        assert_eq!(
1852            visible_entries_as_strings(&panel, 0..10, cx),
1853            &[
1854                "v root1",
1855                "    > .git",
1856                "    > a",
1857                "    v b",
1858                "        > 3",
1859                "        > 4",
1860                "          [PROCESSING: 'a-different-filename']  <== selected",
1861                "    > C",
1862                "      .dockerignore",
1863                "      the-new-filename",
1864            ]
1865        );
1866
1867        confirm.await.unwrap();
1868        assert_eq!(
1869            visible_entries_as_strings(&panel, 0..10, cx),
1870            &[
1871                "v root1",
1872                "    > .git",
1873                "    > a",
1874                "    v b",
1875                "        > 3",
1876                "        > 4",
1877                "          a-different-filename  <== selected",
1878                "    > C",
1879                "      .dockerignore",
1880                "      the-new-filename",
1881            ]
1882        );
1883
1884        panel.update(cx, |panel, cx| panel.new_directory(&NewDirectory, cx));
1885        assert_eq!(
1886            visible_entries_as_strings(&panel, 0..10, cx),
1887            &[
1888                "v root1",
1889                "    > .git",
1890                "    > a",
1891                "    v b",
1892                "        > [EDITOR: '']  <== selected",
1893                "        > 3",
1894                "        > 4",
1895                "          a-different-filename",
1896                "    > C",
1897                "      .dockerignore",
1898            ]
1899        );
1900
1901        let confirm = panel.update(cx, |panel, cx| {
1902            panel
1903                .filename_editor
1904                .update(cx, |editor, cx| editor.set_text("new-dir", cx));
1905            panel.confirm(&Confirm, cx).unwrap()
1906        });
1907        panel.update(cx, |panel, cx| panel.select_next(&Default::default(), cx));
1908        assert_eq!(
1909            visible_entries_as_strings(&panel, 0..10, cx),
1910            &[
1911                "v root1",
1912                "    > .git",
1913                "    > a",
1914                "    v b",
1915                "        > [PROCESSING: 'new-dir']",
1916                "        > 3  <== selected",
1917                "        > 4",
1918                "          a-different-filename",
1919                "    > C",
1920                "      .dockerignore",
1921            ]
1922        );
1923
1924        confirm.await.unwrap();
1925        assert_eq!(
1926            visible_entries_as_strings(&panel, 0..10, cx),
1927            &[
1928                "v root1",
1929                "    > .git",
1930                "    > a",
1931                "    v b",
1932                "        > 3  <== selected",
1933                "        > 4",
1934                "        > new-dir",
1935                "          a-different-filename",
1936                "    > C",
1937                "      .dockerignore",
1938            ]
1939        );
1940
1941        panel.update(cx, |panel, cx| panel.rename(&Default::default(), cx));
1942        assert_eq!(
1943            visible_entries_as_strings(&panel, 0..10, cx),
1944            &[
1945                "v root1",
1946                "    > .git",
1947                "    > a",
1948                "    v b",
1949                "        > [EDITOR: '3']  <== selected",
1950                "        > 4",
1951                "        > new-dir",
1952                "          a-different-filename",
1953                "    > C",
1954                "      .dockerignore",
1955            ]
1956        );
1957
1958        // Dismiss the rename editor when it loses focus.
1959        workspace.update(cx, |_, cx| cx.focus_self());
1960        assert_eq!(
1961            visible_entries_as_strings(&panel, 0..10, cx),
1962            &[
1963                "v root1",
1964                "    > .git",
1965                "    > a",
1966                "    v b",
1967                "        > 3  <== selected",
1968                "        > 4",
1969                "        > new-dir",
1970                "          a-different-filename",
1971                "    > C",
1972                "      .dockerignore",
1973            ]
1974        );
1975    }
1976
1977    #[gpui::test]
1978    async fn test_copy_paste(cx: &mut gpui::TestAppContext) {
1979        init_test(cx);
1980
1981        let fs = FakeFs::new(cx.background());
1982        fs.insert_tree(
1983            "/root1",
1984            json!({
1985                "one.two.txt": "",
1986                "one.txt": ""
1987            }),
1988        )
1989        .await;
1990
1991        let project = Project::test(fs.clone(), ["/root1".as_ref()], cx).await;
1992        let (_, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
1993        let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
1994
1995        panel.update(cx, |panel, cx| {
1996            panel.select_next(&Default::default(), cx);
1997            panel.select_next(&Default::default(), cx);
1998        });
1999
2000        assert_eq!(
2001            visible_entries_as_strings(&panel, 0..50, cx),
2002            &[
2003                //
2004                "v root1",
2005                "      one.two.txt  <== selected",
2006                "      one.txt",
2007            ]
2008        );
2009
2010        // Regression test - file name is created correctly when
2011        // the copied file's name contains multiple dots.
2012        panel.update(cx, |panel, cx| {
2013            panel.copy(&Default::default(), cx);
2014            panel.paste(&Default::default(), cx);
2015        });
2016        cx.foreground().run_until_parked();
2017
2018        assert_eq!(
2019            visible_entries_as_strings(&panel, 0..50, cx),
2020            &[
2021                //
2022                "v root1",
2023                "      one.two copy.txt",
2024                "      one.two.txt  <== selected",
2025                "      one.txt",
2026            ]
2027        );
2028
2029        panel.update(cx, |panel, cx| {
2030            panel.paste(&Default::default(), cx);
2031        });
2032        cx.foreground().run_until_parked();
2033
2034        assert_eq!(
2035            visible_entries_as_strings(&panel, 0..50, cx),
2036            &[
2037                //
2038                "v root1",
2039                "      one.two copy 1.txt",
2040                "      one.two copy.txt",
2041                "      one.two.txt  <== selected",
2042                "      one.txt",
2043            ]
2044        );
2045    }
2046
2047    #[gpui::test]
2048    async fn test_remove_opened_file(cx: &mut gpui::TestAppContext) {
2049        init_test_with_editor(cx);
2050
2051        let fs = FakeFs::new(cx.background());
2052        fs.insert_tree(
2053            "/src",
2054            json!({
2055                "test": {
2056                    "first.rs": "// First Rust file",
2057                    "second.rs": "// Second Rust file",
2058                    "third.rs": "// Third Rust file",
2059                }
2060            }),
2061        )
2062        .await;
2063
2064        let project = Project::test(fs.clone(), ["/src".as_ref()], cx).await;
2065        let (window_id, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
2066        let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
2067
2068        toggle_expand_dir(&panel, "src/test", cx);
2069        select_path(&panel, "src/test/first.rs", cx);
2070        panel.update(cx, |panel, cx| panel.confirm(&Confirm, cx));
2071        cx.foreground().run_until_parked();
2072        assert_eq!(
2073            visible_entries_as_strings(&panel, 0..10, cx),
2074            &[
2075                "v src",
2076                "    v test",
2077                "          first.rs  <== selected",
2078                "          second.rs",
2079                "          third.rs"
2080            ]
2081        );
2082        ensure_single_file_is_opened(window_id, &workspace, "test/first.rs", cx);
2083
2084        submit_deletion(window_id, &panel, cx);
2085        assert_eq!(
2086            visible_entries_as_strings(&panel, 0..10, cx),
2087            &[
2088                "v src",
2089                "    v test",
2090                "          second.rs",
2091                "          third.rs"
2092            ],
2093            "Project panel should have no deleted file, no other file is selected in it"
2094        );
2095        ensure_no_open_items_and_panes(window_id, &workspace, cx);
2096
2097        select_path(&panel, "src/test/second.rs", cx);
2098        panel.update(cx, |panel, cx| panel.confirm(&Confirm, cx));
2099        cx.foreground().run_until_parked();
2100        assert_eq!(
2101            visible_entries_as_strings(&panel, 0..10, cx),
2102            &[
2103                "v src",
2104                "    v test",
2105                "          second.rs  <== selected",
2106                "          third.rs"
2107            ]
2108        );
2109        ensure_single_file_is_opened(window_id, &workspace, "test/second.rs", cx);
2110
2111        cx.update_window(window_id, |cx| {
2112            let active_items = workspace
2113                .read(cx)
2114                .panes()
2115                .iter()
2116                .filter_map(|pane| pane.read(cx).active_item())
2117                .collect::<Vec<_>>();
2118            assert_eq!(active_items.len(), 1);
2119            let open_editor = active_items
2120                .into_iter()
2121                .next()
2122                .unwrap()
2123                .downcast::<Editor>()
2124                .expect("Open item should be an editor");
2125            open_editor.update(cx, |editor, cx| editor.set_text("Another text!", cx));
2126        });
2127        submit_deletion(window_id, &panel, cx);
2128        assert_eq!(
2129            visible_entries_as_strings(&panel, 0..10, cx),
2130            &["v src", "    v test", "          third.rs"],
2131            "Project panel should have no deleted file, with one last file remaining"
2132        );
2133        ensure_no_open_items_and_panes(window_id, &workspace, cx);
2134    }
2135
2136    #[gpui::test]
2137    async fn test_create_duplicate_items(cx: &mut gpui::TestAppContext) {
2138        init_test_with_editor(cx);
2139
2140        let fs = FakeFs::new(cx.background());
2141        fs.insert_tree(
2142            "/src",
2143            json!({
2144                "test": {
2145                    "first.rs": "// First Rust file",
2146                    "second.rs": "// Second Rust file",
2147                    "third.rs": "// Third Rust file",
2148                }
2149            }),
2150        )
2151        .await;
2152
2153        let project = Project::test(fs.clone(), ["/src".as_ref()], cx).await;
2154        let (window_id, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
2155        let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
2156
2157        select_path(&panel, "src/", cx);
2158        panel.update(cx, |panel, cx| panel.confirm(&Confirm, cx));
2159        cx.foreground().run_until_parked();
2160        assert_eq!(
2161            visible_entries_as_strings(&panel, 0..10, cx),
2162            &["v src  <== selected", "    > test"]
2163        );
2164        panel.update(cx, |panel, cx| panel.new_directory(&NewDirectory, cx));
2165        cx.read_window(window_id, |cx| {
2166            let panel = panel.read(cx);
2167            assert!(panel.filename_editor.is_focused(cx));
2168        });
2169        assert_eq!(
2170            visible_entries_as_strings(&panel, 0..10, cx),
2171            &["v src", "    > [EDITOR: '']  <== selected", "    > test"]
2172        );
2173        panel.update(cx, |panel, cx| {
2174            panel
2175                .filename_editor
2176                .update(cx, |editor, cx| editor.set_text("test", cx));
2177            assert!(
2178                panel.confirm(&Confirm, cx).is_none(),
2179                "Should not allow to confirm on conflicting new directory name"
2180            )
2181        });
2182        assert_eq!(
2183            visible_entries_as_strings(&panel, 0..10, cx),
2184            &["v src", "    > test"],
2185            "File list should be unchanged after failed folder create confirmation"
2186        );
2187
2188        select_path(&panel, "src/test/", cx);
2189        panel.update(cx, |panel, cx| panel.confirm(&Confirm, cx));
2190        cx.foreground().run_until_parked();
2191        assert_eq!(
2192            visible_entries_as_strings(&panel, 0..10, cx),
2193            &["v src", "    > test  <== selected"]
2194        );
2195        panel.update(cx, |panel, cx| panel.new_file(&NewFile, cx));
2196        cx.read_window(window_id, |cx| {
2197            let panel = panel.read(cx);
2198            assert!(panel.filename_editor.is_focused(cx));
2199        });
2200        assert_eq!(
2201            visible_entries_as_strings(&panel, 0..10, cx),
2202            &[
2203                "v src",
2204                "    v test",
2205                "          [EDITOR: '']  <== selected",
2206                "          first.rs",
2207                "          second.rs",
2208                "          third.rs"
2209            ]
2210        );
2211        panel.update(cx, |panel, cx| {
2212            panel
2213                .filename_editor
2214                .update(cx, |editor, cx| editor.set_text("first.rs", cx));
2215            assert!(
2216                panel.confirm(&Confirm, cx).is_none(),
2217                "Should not allow to confirm on conflicting new file name"
2218            )
2219        });
2220        assert_eq!(
2221            visible_entries_as_strings(&panel, 0..10, cx),
2222            &[
2223                "v src",
2224                "    v test",
2225                "          first.rs",
2226                "          second.rs",
2227                "          third.rs"
2228            ],
2229            "File list should be unchanged after failed file create confirmation"
2230        );
2231
2232        select_path(&panel, "src/test/first.rs", cx);
2233        panel.update(cx, |panel, cx| panel.confirm(&Confirm, cx));
2234        cx.foreground().run_until_parked();
2235        assert_eq!(
2236            visible_entries_as_strings(&panel, 0..10, cx),
2237            &[
2238                "v src",
2239                "    v test",
2240                "          first.rs  <== selected",
2241                "          second.rs",
2242                "          third.rs"
2243            ],
2244        );
2245        panel.update(cx, |panel, cx| panel.rename(&Rename, cx));
2246        cx.read_window(window_id, |cx| {
2247            let panel = panel.read(cx);
2248            assert!(panel.filename_editor.is_focused(cx));
2249        });
2250        assert_eq!(
2251            visible_entries_as_strings(&panel, 0..10, cx),
2252            &[
2253                "v src",
2254                "    v test",
2255                "          [EDITOR: 'first.rs']  <== selected",
2256                "          second.rs",
2257                "          third.rs"
2258            ]
2259        );
2260        panel.update(cx, |panel, cx| {
2261            panel
2262                .filename_editor
2263                .update(cx, |editor, cx| editor.set_text("second.rs", cx));
2264            assert!(
2265                panel.confirm(&Confirm, cx).is_none(),
2266                "Should not allow to confirm on conflicting file rename"
2267            )
2268        });
2269        assert_eq!(
2270            visible_entries_as_strings(&panel, 0..10, cx),
2271            &[
2272                "v src",
2273                "    v test",
2274                "          first.rs  <== selected",
2275                "          second.rs",
2276                "          third.rs"
2277            ],
2278            "File list should be unchanged after failed rename confirmation"
2279        );
2280    }
2281
2282    fn toggle_expand_dir(
2283        panel: &ViewHandle<ProjectPanel>,
2284        path: impl AsRef<Path>,
2285        cx: &mut TestAppContext,
2286    ) {
2287        let path = path.as_ref();
2288        panel.update(cx, |panel, cx| {
2289            for worktree in panel.project.read(cx).worktrees(cx).collect::<Vec<_>>() {
2290                let worktree = worktree.read(cx);
2291                if let Ok(relative_path) = path.strip_prefix(worktree.root_name()) {
2292                    let entry_id = worktree.entry_for_path(relative_path).unwrap().id;
2293                    panel.toggle_expanded(entry_id, cx);
2294                    return;
2295                }
2296            }
2297            panic!("no worktree for path {:?}", path);
2298        });
2299    }
2300
2301    fn select_path(
2302        panel: &ViewHandle<ProjectPanel>,
2303        path: impl AsRef<Path>,
2304        cx: &mut TestAppContext,
2305    ) {
2306        let path = path.as_ref();
2307        panel.update(cx, |panel, cx| {
2308            for worktree in panel.project.read(cx).worktrees(cx).collect::<Vec<_>>() {
2309                let worktree = worktree.read(cx);
2310                if let Ok(relative_path) = path.strip_prefix(worktree.root_name()) {
2311                    let entry_id = worktree.entry_for_path(relative_path).unwrap().id;
2312                    panel.selection = Some(Selection {
2313                        worktree_id: worktree.id(),
2314                        entry_id,
2315                    });
2316                    return;
2317                }
2318            }
2319            panic!("no worktree for path {:?}", path);
2320        });
2321    }
2322
2323    fn visible_entries_as_strings(
2324        panel: &ViewHandle<ProjectPanel>,
2325        range: Range<usize>,
2326        cx: &mut TestAppContext,
2327    ) -> Vec<String> {
2328        let mut result = Vec::new();
2329        let mut project_entries = HashSet::new();
2330        let mut has_editor = false;
2331
2332        panel.update(cx, |panel, cx| {
2333            panel.for_each_visible_entry(range, cx, |project_entry, details, _| {
2334                if details.is_editing {
2335                    assert!(!has_editor, "duplicate editor entry");
2336                    has_editor = true;
2337                } else {
2338                    assert!(
2339                        project_entries.insert(project_entry),
2340                        "duplicate project entry {:?} {:?}",
2341                        project_entry,
2342                        details
2343                    );
2344                }
2345
2346                let indent = "    ".repeat(details.depth);
2347                let icon = if matches!(details.kind, EntryKind::Dir | EntryKind::PendingDir) {
2348                    if details.is_expanded {
2349                        "v "
2350                    } else {
2351                        "> "
2352                    }
2353                } else {
2354                    "  "
2355                };
2356                let name = if details.is_editing {
2357                    format!("[EDITOR: '{}']", details.filename)
2358                } else if details.is_processing {
2359                    format!("[PROCESSING: '{}']", details.filename)
2360                } else {
2361                    details.filename.clone()
2362                };
2363                let selected = if details.is_selected {
2364                    "  <== selected"
2365                } else {
2366                    ""
2367                };
2368                result.push(format!("{indent}{icon}{name}{selected}"));
2369            });
2370        });
2371
2372        result
2373    }
2374
2375    fn init_test(cx: &mut TestAppContext) {
2376        cx.foreground().forbid_parking();
2377        cx.update(|cx| {
2378            cx.set_global(SettingsStore::test(cx));
2379            init_settings(cx);
2380            theme::init((), cx);
2381            language::init(cx);
2382            editor::init_settings(cx);
2383            crate::init(cx);
2384            workspace::init_settings(cx);
2385            Project::init_settings(cx);
2386        });
2387    }
2388
2389    fn init_test_with_editor(cx: &mut TestAppContext) {
2390        cx.foreground().forbid_parking();
2391        cx.update(|cx| {
2392            let app_state = AppState::test(cx);
2393            theme::init((), cx);
2394            init_settings(cx);
2395            language::init(cx);
2396            editor::init(cx);
2397            pane::init(cx);
2398            crate::init(cx);
2399            workspace::init(app_state.clone(), cx);
2400            Project::init_settings(cx);
2401        });
2402    }
2403
2404    fn ensure_single_file_is_opened(
2405        window_id: usize,
2406        workspace: &ViewHandle<Workspace>,
2407        expected_path: &str,
2408        cx: &mut TestAppContext,
2409    ) {
2410        cx.read_window(window_id, |cx| {
2411            let workspace = workspace.read(cx);
2412            let worktrees = workspace.worktrees(cx).collect::<Vec<_>>();
2413            assert_eq!(worktrees.len(), 1);
2414            let worktree_id = WorktreeId::from_usize(worktrees[0].id());
2415
2416            let open_project_paths = workspace
2417                .panes()
2418                .iter()
2419                .filter_map(|pane| pane.read(cx).active_item()?.project_path(cx))
2420                .collect::<Vec<_>>();
2421            assert_eq!(
2422                open_project_paths,
2423                vec![ProjectPath {
2424                    worktree_id,
2425                    path: Arc::from(Path::new(expected_path))
2426                }],
2427                "Should have opened file, selected in project panel"
2428            );
2429        });
2430    }
2431
2432    fn submit_deletion(
2433        window_id: usize,
2434        panel: &ViewHandle<ProjectPanel>,
2435        cx: &mut TestAppContext,
2436    ) {
2437        assert!(
2438            !cx.has_pending_prompt(window_id),
2439            "Should have no prompts before the deletion"
2440        );
2441        panel.update(cx, |panel, cx| {
2442            panel
2443                .delete(&Delete, cx)
2444                .expect("Deletion start")
2445                .detach_and_log_err(cx);
2446        });
2447        assert!(
2448            cx.has_pending_prompt(window_id),
2449            "Should have a prompt after the deletion"
2450        );
2451        cx.simulate_prompt_answer(window_id, 0);
2452        assert!(
2453            !cx.has_pending_prompt(window_id),
2454            "Should have no prompts after prompt was replied to"
2455        );
2456        cx.foreground().run_until_parked();
2457    }
2458
2459    fn ensure_no_open_items_and_panes(
2460        window_id: usize,
2461        workspace: &ViewHandle<Workspace>,
2462        cx: &mut TestAppContext,
2463    ) {
2464        assert!(
2465            !cx.has_pending_prompt(window_id),
2466            "Should have no prompts after deletion operation closes the file"
2467        );
2468        cx.read_window(window_id, |cx| {
2469            let open_project_paths = workspace
2470                .read(cx)
2471                .panes()
2472                .iter()
2473                .filter_map(|pane| pane.read(cx).active_item()?.project_path(cx))
2474                .collect::<Vec<_>>();
2475            assert!(
2476                open_project_paths.is_empty(),
2477                "Deleted file's buffer should be closed, but got open files: {open_project_paths:?}"
2478            );
2479        });
2480    }
2481}