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, Debug)]
  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 worktree_id = worktree.id();
 415                let entry_id = entry.id;
 416                let expanded_dir_ids =
 417                    if let Some(expanded_dir_ids) = self.expanded_dir_ids.get_mut(&worktree_id) {
 418                        expanded_dir_ids
 419                    } else {
 420                        return;
 421                    };
 422
 423                match expanded_dir_ids.binary_search(&entry_id) {
 424                    Ok(_) => self.select_next(&SelectNext, cx),
 425                    Err(ix) => {
 426                        self.project.update(cx, |project, cx| {
 427                            project.expand_entry(worktree_id, entry_id, cx);
 428                        });
 429
 430                        expanded_dir_ids.insert(ix, entry_id);
 431                        self.update_visible_entries(None, cx);
 432                        cx.notify();
 433                    }
 434                }
 435            }
 436        }
 437    }
 438
 439    fn collapse_selected_entry(&mut self, _: &CollapseSelectedEntry, cx: &mut ViewContext<Self>) {
 440        if let Some((worktree, mut entry)) = self.selected_entry(cx) {
 441            let worktree_id = worktree.id();
 442            let expanded_dir_ids =
 443                if let Some(expanded_dir_ids) = self.expanded_dir_ids.get_mut(&worktree_id) {
 444                    expanded_dir_ids
 445                } else {
 446                    return;
 447                };
 448
 449            loop {
 450                let entry_id = entry.id;
 451                match expanded_dir_ids.binary_search(&entry_id) {
 452                    Ok(ix) => {
 453                        expanded_dir_ids.remove(ix);
 454                        self.update_visible_entries(Some((worktree_id, entry_id)), cx);
 455                        cx.notify();
 456                        break;
 457                    }
 458                    Err(_) => {
 459                        if let Some(parent_entry) =
 460                            entry.path.parent().and_then(|p| worktree.entry_for_path(p))
 461                        {
 462                            entry = parent_entry;
 463                        } else {
 464                            break;
 465                        }
 466                    }
 467                }
 468            }
 469        }
 470    }
 471
 472    fn toggle_expanded(&mut self, entry_id: ProjectEntryId, cx: &mut ViewContext<Self>) {
 473        if let Some(worktree_id) = self.project.read(cx).worktree_id_for_entry(entry_id, cx) {
 474            if let Some(expanded_dir_ids) = self.expanded_dir_ids.get_mut(&worktree_id) {
 475                self.project.update(cx, |project, cx| {
 476                    match expanded_dir_ids.binary_search(&entry_id) {
 477                        Ok(ix) => {
 478                            expanded_dir_ids.remove(ix);
 479                        }
 480                        Err(ix) => {
 481                            project.expand_entry(worktree_id, entry_id, cx);
 482                            expanded_dir_ids.insert(ix, entry_id);
 483                        }
 484                    }
 485                });
 486                self.update_visible_entries(Some((worktree_id, entry_id)), cx);
 487                cx.focus_self();
 488                cx.notify();
 489            }
 490        }
 491    }
 492
 493    fn select_prev(&mut self, _: &SelectPrev, cx: &mut ViewContext<Self>) {
 494        if let Some(selection) = self.selection {
 495            let (mut worktree_ix, mut entry_ix, _) =
 496                self.index_for_selection(selection).unwrap_or_default();
 497            if entry_ix > 0 {
 498                entry_ix -= 1;
 499            } else if worktree_ix > 0 {
 500                worktree_ix -= 1;
 501                entry_ix = self.visible_entries[worktree_ix].1.len() - 1;
 502            } else {
 503                return;
 504            }
 505
 506            let (worktree_id, worktree_entries) = &self.visible_entries[worktree_ix];
 507            self.selection = Some(Selection {
 508                worktree_id: *worktree_id,
 509                entry_id: worktree_entries[entry_ix].id,
 510            });
 511            self.autoscroll(cx);
 512            cx.notify();
 513        } else {
 514            self.select_first(cx);
 515        }
 516    }
 517
 518    fn confirm(&mut self, _: &Confirm, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
 519        if let Some(task) = self.confirm_edit(cx) {
 520            Some(task)
 521        } else if let Some((_, entry)) = self.selected_entry(cx) {
 522            if entry.is_file() {
 523                self.open_entry(entry.id, true, cx);
 524            }
 525            None
 526        } else {
 527            None
 528        }
 529    }
 530
 531    fn confirm_edit(&mut self, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
 532        let edit_state = self.edit_state.as_mut()?;
 533        cx.focus_self();
 534
 535        let worktree_id = edit_state.worktree_id;
 536        let is_new_entry = edit_state.is_new_entry;
 537        let is_dir = edit_state.is_dir;
 538        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
 539        let entry = worktree.read(cx).entry_for_id(edit_state.entry_id)?.clone();
 540        let filename = self.filename_editor.read(cx).text(cx);
 541
 542        let path_already_exists = |path| worktree.read(cx).entry_for_path(path).is_some();
 543        let edit_task;
 544        let edited_entry_id;
 545        if is_new_entry {
 546            self.selection = Some(Selection {
 547                worktree_id,
 548                entry_id: NEW_ENTRY_ID,
 549            });
 550            let new_path = entry.path.join(&filename.trim_start_matches("/"));
 551            if path_already_exists(new_path.as_path()) {
 552                return None;
 553            }
 554
 555            edited_entry_id = NEW_ENTRY_ID;
 556            edit_task = self.project.update(cx, |project, cx| {
 557                project.create_entry((worktree_id, &new_path), is_dir, cx)
 558            })?;
 559        } else {
 560            let new_path = if let Some(parent) = entry.path.clone().parent() {
 561                parent.join(&filename)
 562            } else {
 563                filename.clone().into()
 564            };
 565            if path_already_exists(new_path.as_path()) {
 566                return None;
 567            }
 568
 569            edited_entry_id = entry.id;
 570            edit_task = self.project.update(cx, |project, cx| {
 571                project.rename_entry(entry.id, new_path.as_path(), cx)
 572            })?;
 573        };
 574
 575        edit_state.processing_filename = Some(filename);
 576        cx.notify();
 577
 578        Some(cx.spawn(|this, mut cx| async move {
 579            let new_entry = edit_task.await;
 580            this.update(&mut cx, |this, cx| {
 581                this.edit_state.take();
 582                cx.notify();
 583            })?;
 584
 585            let new_entry = new_entry?;
 586            this.update(&mut cx, |this, cx| {
 587                if let Some(selection) = &mut this.selection {
 588                    if selection.entry_id == edited_entry_id {
 589                        selection.worktree_id = worktree_id;
 590                        selection.entry_id = new_entry.id;
 591                        this.expand_to_selection(cx);
 592                    }
 593                }
 594                this.update_visible_entries(None, cx);
 595                if is_new_entry && !is_dir {
 596                    this.open_entry(new_entry.id, true, cx);
 597                }
 598                cx.notify();
 599            })?;
 600            Ok(())
 601        }))
 602    }
 603
 604    fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
 605        self.edit_state = None;
 606        self.update_visible_entries(None, cx);
 607        cx.focus_self();
 608        cx.notify();
 609    }
 610
 611    fn open_entry(
 612        &mut self,
 613        entry_id: ProjectEntryId,
 614        focus_opened_item: bool,
 615        cx: &mut ViewContext<Self>,
 616    ) {
 617        cx.emit(Event::OpenedEntry {
 618            entry_id,
 619            focus_opened_item,
 620        });
 621    }
 622
 623    fn new_file(&mut self, _: &NewFile, cx: &mut ViewContext<Self>) {
 624        self.add_entry(false, cx)
 625    }
 626
 627    fn new_directory(&mut self, _: &NewDirectory, cx: &mut ViewContext<Self>) {
 628        self.add_entry(true, cx)
 629    }
 630
 631    fn add_entry(&mut self, is_dir: bool, cx: &mut ViewContext<Self>) {
 632        if let Some(Selection {
 633            worktree_id,
 634            entry_id,
 635        }) = self.selection
 636        {
 637            let directory_id;
 638            if let Some((worktree, expanded_dir_ids)) = self
 639                .project
 640                .read(cx)
 641                .worktree_for_id(worktree_id, cx)
 642                .zip(self.expanded_dir_ids.get_mut(&worktree_id))
 643            {
 644                let worktree = worktree.read(cx);
 645                if let Some(mut entry) = worktree.entry_for_id(entry_id) {
 646                    loop {
 647                        if entry.is_dir() {
 648                            if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
 649                                expanded_dir_ids.insert(ix, entry.id);
 650                            }
 651                            directory_id = entry.id;
 652                            break;
 653                        } else {
 654                            if let Some(parent_path) = entry.path.parent() {
 655                                if let Some(parent_entry) = worktree.entry_for_path(parent_path) {
 656                                    entry = parent_entry;
 657                                    continue;
 658                                }
 659                            }
 660                            return;
 661                        }
 662                    }
 663                } else {
 664                    return;
 665                };
 666            } else {
 667                return;
 668            };
 669
 670            self.edit_state = Some(EditState {
 671                worktree_id,
 672                entry_id: directory_id,
 673                is_new_entry: true,
 674                is_dir,
 675                processing_filename: None,
 676            });
 677            self.filename_editor
 678                .update(cx, |editor, cx| editor.clear(cx));
 679            cx.focus(&self.filename_editor);
 680            self.update_visible_entries(Some((worktree_id, NEW_ENTRY_ID)), cx);
 681            self.autoscroll(cx);
 682            cx.notify();
 683        }
 684    }
 685
 686    fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) {
 687        if let Some(Selection {
 688            worktree_id,
 689            entry_id,
 690        }) = self.selection
 691        {
 692            if let Some(worktree) = self.project.read(cx).worktree_for_id(worktree_id, cx) {
 693                if let Some(entry) = worktree.read(cx).entry_for_id(entry_id) {
 694                    self.edit_state = Some(EditState {
 695                        worktree_id,
 696                        entry_id,
 697                        is_new_entry: false,
 698                        is_dir: entry.is_dir(),
 699                        processing_filename: None,
 700                    });
 701                    let filename = entry
 702                        .path
 703                        .file_name()
 704                        .map_or(String::new(), |s| s.to_string_lossy().to_string());
 705                    self.filename_editor.update(cx, |editor, cx| {
 706                        editor.set_text(filename, cx);
 707                        editor.select_all(&Default::default(), cx);
 708                    });
 709                    cx.focus(&self.filename_editor);
 710                    self.update_visible_entries(None, cx);
 711                    self.autoscroll(cx);
 712                    cx.notify();
 713                }
 714            }
 715
 716            cx.update_global(|drag_and_drop: &mut DragAndDrop<Workspace>, cx| {
 717                drag_and_drop.cancel_dragging::<ProjectEntryId>(cx);
 718            })
 719        }
 720    }
 721
 722    fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
 723        let Selection { entry_id, .. } = self.selection?;
 724        let path = self.project.read(cx).path_for_entry(entry_id, cx)?.path;
 725        let file_name = path.file_name()?;
 726
 727        let mut answer = cx.prompt(
 728            PromptLevel::Info,
 729            &format!("Delete {file_name:?}?"),
 730            &["Delete", "Cancel"],
 731        );
 732        Some(cx.spawn(|this, mut cx| async move {
 733            if answer.next().await != Some(0) {
 734                return Ok(());
 735            }
 736            this.update(&mut cx, |this, cx| {
 737                this.project
 738                    .update(cx, |project, cx| project.delete_entry(entry_id, cx))
 739                    .ok_or_else(|| anyhow!("no such entry"))
 740            })??
 741            .await
 742        }))
 743    }
 744
 745    fn select_next(&mut self, _: &SelectNext, cx: &mut ViewContext<Self>) {
 746        if let Some(selection) = self.selection {
 747            let (mut worktree_ix, mut entry_ix, _) =
 748                self.index_for_selection(selection).unwrap_or_default();
 749            if let Some((_, worktree_entries)) = self.visible_entries.get(worktree_ix) {
 750                if entry_ix + 1 < worktree_entries.len() {
 751                    entry_ix += 1;
 752                } else {
 753                    worktree_ix += 1;
 754                    entry_ix = 0;
 755                }
 756            }
 757
 758            if let Some((worktree_id, worktree_entries)) = self.visible_entries.get(worktree_ix) {
 759                if let Some(entry) = worktree_entries.get(entry_ix) {
 760                    self.selection = Some(Selection {
 761                        worktree_id: *worktree_id,
 762                        entry_id: entry.id,
 763                    });
 764                    self.autoscroll(cx);
 765                    cx.notify();
 766                }
 767            }
 768        } else {
 769            self.select_first(cx);
 770        }
 771    }
 772
 773    fn select_first(&mut self, cx: &mut ViewContext<Self>) {
 774        let worktree = self
 775            .visible_entries
 776            .first()
 777            .and_then(|(worktree_id, _)| self.project.read(cx).worktree_for_id(*worktree_id, cx));
 778        if let Some(worktree) = worktree {
 779            let worktree = worktree.read(cx);
 780            let worktree_id = worktree.id();
 781            if let Some(root_entry) = worktree.root_entry() {
 782                self.selection = Some(Selection {
 783                    worktree_id,
 784                    entry_id: root_entry.id,
 785                });
 786                self.autoscroll(cx);
 787                cx.notify();
 788            }
 789        }
 790    }
 791
 792    fn autoscroll(&mut self, cx: &mut ViewContext<Self>) {
 793        if let Some((_, _, index)) = self.selection.and_then(|s| self.index_for_selection(s)) {
 794            self.list.scroll_to(ScrollTarget::Show(index));
 795            cx.notify();
 796        }
 797    }
 798
 799    fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
 800        if let Some((worktree, entry)) = self.selected_entry(cx) {
 801            self.clipboard_entry = Some(ClipboardEntry::Cut {
 802                worktree_id: worktree.id(),
 803                entry_id: entry.id,
 804            });
 805            cx.notify();
 806        }
 807    }
 808
 809    fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
 810        if let Some((worktree, entry)) = self.selected_entry(cx) {
 811            self.clipboard_entry = Some(ClipboardEntry::Copied {
 812                worktree_id: worktree.id(),
 813                entry_id: entry.id,
 814            });
 815            cx.notify();
 816        }
 817    }
 818
 819    fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) -> Option<()> {
 820        if let Some((worktree, entry)) = self.selected_entry(cx) {
 821            let clipboard_entry = self.clipboard_entry?;
 822            if clipboard_entry.worktree_id() != worktree.id() {
 823                return None;
 824            }
 825
 826            let clipboard_entry_file_name = self
 827                .project
 828                .read(cx)
 829                .path_for_entry(clipboard_entry.entry_id(), cx)?
 830                .path
 831                .file_name()?
 832                .to_os_string();
 833
 834            let mut new_path = entry.path.to_path_buf();
 835            if entry.is_file() {
 836                new_path.pop();
 837            }
 838
 839            new_path.push(&clipboard_entry_file_name);
 840            let extension = new_path.extension().map(|e| e.to_os_string());
 841            let file_name_without_extension = Path::new(&clipboard_entry_file_name).file_stem()?;
 842            let mut ix = 0;
 843            while worktree.entry_for_path(&new_path).is_some() {
 844                new_path.pop();
 845
 846                let mut new_file_name = file_name_without_extension.to_os_string();
 847                new_file_name.push(" copy");
 848                if ix > 0 {
 849                    new_file_name.push(format!(" {}", ix));
 850                }
 851                if let Some(extension) = extension.as_ref() {
 852                    new_file_name.push(".");
 853                    new_file_name.push(extension);
 854                }
 855
 856                new_path.push(new_file_name);
 857                ix += 1;
 858            }
 859
 860            if clipboard_entry.is_cut() {
 861                if let Some(task) = self.project.update(cx, |project, cx| {
 862                    project.rename_entry(clipboard_entry.entry_id(), new_path, cx)
 863                }) {
 864                    task.detach_and_log_err(cx)
 865                }
 866            } else if let Some(task) = self.project.update(cx, |project, cx| {
 867                project.copy_entry(clipboard_entry.entry_id(), new_path, cx)
 868            }) {
 869                task.detach_and_log_err(cx)
 870            }
 871        }
 872        None
 873    }
 874
 875    fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
 876        if let Some((worktree, entry)) = self.selected_entry(cx) {
 877            cx.write_to_clipboard(ClipboardItem::new(
 878                worktree
 879                    .abs_path()
 880                    .join(&entry.path)
 881                    .to_string_lossy()
 882                    .to_string(),
 883            ));
 884        }
 885    }
 886
 887    fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
 888        if let Some((_, entry)) = self.selected_entry(cx) {
 889            cx.write_to_clipboard(ClipboardItem::new(entry.path.to_string_lossy().to_string()));
 890        }
 891    }
 892
 893    fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
 894        if let Some((worktree, entry)) = self.selected_entry(cx) {
 895            cx.reveal_path(&worktree.abs_path().join(&entry.path));
 896        }
 897    }
 898
 899    fn move_entry(
 900        &mut self,
 901        entry_to_move: ProjectEntryId,
 902        destination: ProjectEntryId,
 903        destination_is_file: bool,
 904        cx: &mut ViewContext<Self>,
 905    ) {
 906        let destination_worktree = self.project.update(cx, |project, cx| {
 907            let entry_path = project.path_for_entry(entry_to_move, cx)?;
 908            let destination_entry_path = project.path_for_entry(destination, cx)?.path.clone();
 909
 910            let mut destination_path = destination_entry_path.as_ref();
 911            if destination_is_file {
 912                destination_path = destination_path.parent()?;
 913            }
 914
 915            let mut new_path = destination_path.to_path_buf();
 916            new_path.push(entry_path.path.file_name()?);
 917            if new_path != entry_path.path.as_ref() {
 918                let task = project.rename_entry(entry_to_move, new_path, cx)?;
 919                cx.foreground().spawn(task).detach_and_log_err(cx);
 920            }
 921
 922            Some(project.worktree_id_for_entry(destination, cx)?)
 923        });
 924
 925        if let Some(destination_worktree) = destination_worktree {
 926            self.expand_entry(destination_worktree, destination, cx);
 927        }
 928    }
 929
 930    fn index_for_selection(&self, selection: Selection) -> Option<(usize, usize, usize)> {
 931        let mut entry_index = 0;
 932        let mut visible_entries_index = 0;
 933        for (worktree_index, (worktree_id, worktree_entries)) in
 934            self.visible_entries.iter().enumerate()
 935        {
 936            if *worktree_id == selection.worktree_id {
 937                for entry in worktree_entries {
 938                    if entry.id == selection.entry_id {
 939                        return Some((worktree_index, entry_index, visible_entries_index));
 940                    } else {
 941                        visible_entries_index += 1;
 942                        entry_index += 1;
 943                    }
 944                }
 945                break;
 946            } else {
 947                visible_entries_index += worktree_entries.len();
 948            }
 949        }
 950        None
 951    }
 952
 953    fn selected_entry<'a>(&self, cx: &'a AppContext) -> Option<(&'a Worktree, &'a project::Entry)> {
 954        let (worktree, entry) = self.selected_entry_handle(cx)?;
 955        Some((worktree.read(cx), entry))
 956    }
 957
 958    fn selected_entry_handle<'a>(
 959        &self,
 960        cx: &'a AppContext,
 961    ) -> Option<(ModelHandle<Worktree>, &'a project::Entry)> {
 962        let selection = self.selection?;
 963        let project = self.project.read(cx);
 964        let worktree = project.worktree_for_id(selection.worktree_id, cx)?;
 965        let entry = worktree.read(cx).entry_for_id(selection.entry_id)?;
 966        Some((worktree, entry))
 967    }
 968
 969    fn expand_to_selection(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
 970        let (worktree, entry) = self.selected_entry(cx)?;
 971        let expanded_dir_ids = self.expanded_dir_ids.entry(worktree.id()).or_default();
 972
 973        for path in entry.path.ancestors() {
 974            let Some(entry) = worktree.entry_for_path(path) else {
 975                continue;
 976            };
 977            if entry.is_dir() {
 978                if let Err(idx) = expanded_dir_ids.binary_search(&entry.id) {
 979                    expanded_dir_ids.insert(idx, entry.id);
 980                }
 981            }
 982        }
 983
 984        Some(())
 985    }
 986
 987    fn update_visible_entries(
 988        &mut self,
 989        new_selected_entry: Option<(WorktreeId, ProjectEntryId)>,
 990        cx: &mut ViewContext<Self>,
 991    ) {
 992        let project = self.project.read(cx);
 993        self.last_worktree_root_id = project
 994            .visible_worktrees(cx)
 995            .rev()
 996            .next()
 997            .and_then(|worktree| worktree.read(cx).root_entry())
 998            .map(|entry| entry.id);
 999
1000        self.visible_entries.clear();
1001        for worktree in project.visible_worktrees(cx) {
1002            let snapshot = worktree.read(cx).snapshot();
1003            let worktree_id = snapshot.id();
1004
1005            let expanded_dir_ids = match self.expanded_dir_ids.entry(worktree_id) {
1006                hash_map::Entry::Occupied(e) => e.into_mut(),
1007                hash_map::Entry::Vacant(e) => {
1008                    // The first time a worktree's root entry becomes available,
1009                    // mark that root entry as expanded.
1010                    if let Some(entry) = snapshot.root_entry() {
1011                        e.insert(vec![entry.id]).as_slice()
1012                    } else {
1013                        &[]
1014                    }
1015                }
1016            };
1017
1018            let mut new_entry_parent_id = None;
1019            let mut new_entry_kind = EntryKind::Dir;
1020            if let Some(edit_state) = &self.edit_state {
1021                if edit_state.worktree_id == worktree_id && edit_state.is_new_entry {
1022                    new_entry_parent_id = Some(edit_state.entry_id);
1023                    new_entry_kind = if edit_state.is_dir {
1024                        EntryKind::Dir
1025                    } else {
1026                        EntryKind::File(Default::default())
1027                    };
1028                }
1029            }
1030
1031            let mut visible_worktree_entries = Vec::new();
1032            let mut entry_iter = snapshot.entries(true);
1033
1034            while let Some(entry) = entry_iter.entry() {
1035                visible_worktree_entries.push(entry.clone());
1036                if Some(entry.id) == new_entry_parent_id {
1037                    visible_worktree_entries.push(Entry {
1038                        id: NEW_ENTRY_ID,
1039                        kind: new_entry_kind,
1040                        path: entry.path.join("\0").into(),
1041                        inode: 0,
1042                        mtime: entry.mtime,
1043                        is_symlink: false,
1044                        is_ignored: false,
1045                        is_external: false,
1046                        git_status: entry.git_status,
1047                    });
1048                }
1049                if expanded_dir_ids.binary_search(&entry.id).is_err()
1050                    && entry_iter.advance_to_sibling()
1051                {
1052                    continue;
1053                }
1054                entry_iter.advance();
1055            }
1056
1057            snapshot.propagate_git_statuses(&mut visible_worktree_entries);
1058
1059            visible_worktree_entries.sort_by(|entry_a, entry_b| {
1060                let mut components_a = entry_a.path.components().peekable();
1061                let mut components_b = entry_b.path.components().peekable();
1062                loop {
1063                    match (components_a.next(), components_b.next()) {
1064                        (Some(component_a), Some(component_b)) => {
1065                            let a_is_file = components_a.peek().is_none() && entry_a.is_file();
1066                            let b_is_file = components_b.peek().is_none() && entry_b.is_file();
1067                            let ordering = a_is_file.cmp(&b_is_file).then_with(|| {
1068                                let name_a =
1069                                    UniCase::new(component_a.as_os_str().to_string_lossy());
1070                                let name_b =
1071                                    UniCase::new(component_b.as_os_str().to_string_lossy());
1072                                name_a.cmp(&name_b)
1073                            });
1074                            if !ordering.is_eq() {
1075                                return ordering;
1076                            }
1077                        }
1078                        (Some(_), None) => break Ordering::Greater,
1079                        (None, Some(_)) => break Ordering::Less,
1080                        (None, None) => break Ordering::Equal,
1081                    }
1082                }
1083            });
1084            self.visible_entries
1085                .push((worktree_id, visible_worktree_entries));
1086        }
1087
1088        if let Some((worktree_id, entry_id)) = new_selected_entry {
1089            self.selection = Some(Selection {
1090                worktree_id,
1091                entry_id,
1092            });
1093        }
1094    }
1095
1096    fn expand_entry(
1097        &mut self,
1098        worktree_id: WorktreeId,
1099        entry_id: ProjectEntryId,
1100        cx: &mut ViewContext<Self>,
1101    ) {
1102        self.project.update(cx, |project, cx| {
1103            if let Some((worktree, expanded_dir_ids)) = project
1104                .worktree_for_id(worktree_id, cx)
1105                .zip(self.expanded_dir_ids.get_mut(&worktree_id))
1106            {
1107                project.expand_entry(worktree_id, entry_id, cx);
1108                let worktree = worktree.read(cx);
1109
1110                if let Some(mut entry) = worktree.entry_for_id(entry_id) {
1111                    loop {
1112                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
1113                            expanded_dir_ids.insert(ix, entry.id);
1114                        }
1115
1116                        if let Some(parent_entry) =
1117                            entry.path.parent().and_then(|p| worktree.entry_for_path(p))
1118                        {
1119                            entry = parent_entry;
1120                        } else {
1121                            break;
1122                        }
1123                    }
1124                }
1125            }
1126        });
1127    }
1128
1129    fn for_each_visible_entry(
1130        &self,
1131        range: Range<usize>,
1132        cx: &mut ViewContext<ProjectPanel>,
1133        mut callback: impl FnMut(ProjectEntryId, EntryDetails, &mut ViewContext<ProjectPanel>),
1134    ) {
1135        let mut ix = 0;
1136        for (worktree_id, visible_worktree_entries) in &self.visible_entries {
1137            if ix >= range.end {
1138                return;
1139            }
1140
1141            if ix + visible_worktree_entries.len() <= range.start {
1142                ix += visible_worktree_entries.len();
1143                continue;
1144            }
1145
1146            let end_ix = range.end.min(ix + visible_worktree_entries.len());
1147            let git_status_setting = settings::get::<ProjectPanelSettings>(cx).git_status;
1148            if let Some(worktree) = self.project.read(cx).worktree_for_id(*worktree_id, cx) {
1149                let snapshot = worktree.read(cx).snapshot();
1150                let root_name = OsStr::new(snapshot.root_name());
1151                let expanded_entry_ids = self
1152                    .expanded_dir_ids
1153                    .get(&snapshot.id())
1154                    .map(Vec::as_slice)
1155                    .unwrap_or(&[]);
1156
1157                let entry_range = range.start.saturating_sub(ix)..end_ix - ix;
1158                for entry in visible_worktree_entries[entry_range].iter() {
1159                    let status = git_status_setting.then(|| entry.git_status).flatten();
1160
1161                    let mut details = EntryDetails {
1162                        filename: entry
1163                            .path
1164                            .file_name()
1165                            .unwrap_or(root_name)
1166                            .to_string_lossy()
1167                            .to_string(),
1168                        path: entry.path.clone(),
1169                        depth: entry.path.components().count(),
1170                        kind: entry.kind,
1171                        is_ignored: entry.is_ignored,
1172                        is_expanded: expanded_entry_ids.binary_search(&entry.id).is_ok(),
1173                        is_selected: self.selection.map_or(false, |e| {
1174                            e.worktree_id == snapshot.id() && e.entry_id == entry.id
1175                        }),
1176                        is_editing: false,
1177                        is_processing: false,
1178                        is_cut: self
1179                            .clipboard_entry
1180                            .map_or(false, |e| e.is_cut() && e.entry_id() == entry.id),
1181                        git_status: status,
1182                    };
1183
1184                    if let Some(edit_state) = &self.edit_state {
1185                        let is_edited_entry = if edit_state.is_new_entry {
1186                            entry.id == NEW_ENTRY_ID
1187                        } else {
1188                            entry.id == edit_state.entry_id
1189                        };
1190
1191                        if is_edited_entry {
1192                            if let Some(processing_filename) = &edit_state.processing_filename {
1193                                details.is_processing = true;
1194                                details.filename.clear();
1195                                details.filename.push_str(processing_filename);
1196                            } else {
1197                                if edit_state.is_new_entry {
1198                                    details.filename.clear();
1199                                }
1200                                details.is_editing = true;
1201                            }
1202                        }
1203                    }
1204
1205                    callback(entry.id, details, cx);
1206                }
1207            }
1208            ix = end_ix;
1209        }
1210    }
1211
1212    fn render_entry_visual_element<V: View>(
1213        details: &EntryDetails,
1214        editor: Option<&ViewHandle<Editor>>,
1215        padding: f32,
1216        row_container_style: ContainerStyle,
1217        style: &ProjectPanelEntry,
1218        cx: &mut ViewContext<V>,
1219    ) -> AnyElement<V> {
1220        let kind = details.kind;
1221        let show_editor = details.is_editing && !details.is_processing;
1222
1223        let mut filename_text_style = style.text.clone();
1224        filename_text_style.color = details
1225            .git_status
1226            .as_ref()
1227            .map(|status| match status {
1228                GitFileStatus::Added => style.status.git.inserted,
1229                GitFileStatus::Modified => style.status.git.modified,
1230                GitFileStatus::Conflict => style.status.git.conflict,
1231            })
1232            .unwrap_or(style.text.color);
1233
1234        Flex::row()
1235            .with_child(
1236                if kind.is_dir() {
1237                    if details.is_expanded {
1238                        Svg::new("icons/chevron_down_8.svg").with_color(style.icon_color)
1239                    } else {
1240                        Svg::new("icons/chevron_right_8.svg").with_color(style.icon_color)
1241                    }
1242                    .constrained()
1243                } else {
1244                    Empty::new().constrained()
1245                }
1246                .with_max_width(style.icon_size)
1247                .with_max_height(style.icon_size)
1248                .aligned()
1249                .constrained()
1250                .with_width(style.icon_size),
1251            )
1252            .with_child(if show_editor && editor.is_some() {
1253                ChildView::new(editor.as_ref().unwrap(), cx)
1254                    .contained()
1255                    .with_margin_left(style.icon_spacing)
1256                    .aligned()
1257                    .left()
1258                    .flex(1.0, true)
1259                    .into_any()
1260            } else {
1261                Label::new(details.filename.clone(), filename_text_style)
1262                    .contained()
1263                    .with_margin_left(style.icon_spacing)
1264                    .aligned()
1265                    .left()
1266                    .into_any()
1267            })
1268            .constrained()
1269            .with_height(style.height)
1270            .contained()
1271            .with_style(row_container_style)
1272            .with_padding_left(padding)
1273            .into_any_named("project panel entry visual element")
1274    }
1275
1276    fn render_entry(
1277        entry_id: ProjectEntryId,
1278        details: EntryDetails,
1279        editor: &ViewHandle<Editor>,
1280        dragged_entry_destination: &mut Option<Arc<Path>>,
1281        theme: &theme::ProjectPanel,
1282        cx: &mut ViewContext<Self>,
1283    ) -> AnyElement<Self> {
1284        let kind = details.kind;
1285        let path = details.path.clone();
1286        let padding = theme.container.padding.left + details.depth as f32 * theme.indent_width;
1287
1288        let entry_style = if details.is_cut {
1289            &theme.cut_entry
1290        } else if details.is_ignored {
1291            &theme.ignored_entry
1292        } else {
1293            &theme.entry
1294        };
1295
1296        let show_editor = details.is_editing && !details.is_processing;
1297
1298        MouseEventHandler::<Self, _>::new(entry_id.to_usize(), cx, |state, cx| {
1299            let mut style = entry_style
1300                .in_state(details.is_selected)
1301                .style_for(state)
1302                .clone();
1303
1304            if cx
1305                .global::<DragAndDrop<Workspace>>()
1306                .currently_dragged::<ProjectEntryId>(cx.window_id())
1307                .is_some()
1308                && dragged_entry_destination
1309                    .as_ref()
1310                    .filter(|destination| details.path.starts_with(destination))
1311                    .is_some()
1312            {
1313                style = entry_style.active_state().default.clone();
1314            }
1315
1316            let row_container_style = if show_editor {
1317                theme.filename_editor.container
1318            } else {
1319                style.container
1320            };
1321
1322            Self::render_entry_visual_element(
1323                &details,
1324                Some(editor),
1325                padding,
1326                row_container_style,
1327                &style,
1328                cx,
1329            )
1330        })
1331        .on_click(MouseButton::Left, move |event, this, cx| {
1332            if !show_editor {
1333                if kind.is_dir() {
1334                    this.toggle_expanded(entry_id, cx);
1335                } else {
1336                    this.open_entry(entry_id, event.click_count > 1, cx);
1337                }
1338            }
1339        })
1340        .on_down(MouseButton::Right, move |event, this, cx| {
1341            this.deploy_context_menu(event.position, entry_id, cx);
1342        })
1343        .on_up(MouseButton::Left, move |_, this, cx| {
1344            if let Some((_, dragged_entry)) = cx
1345                .global::<DragAndDrop<Workspace>>()
1346                .currently_dragged::<ProjectEntryId>(cx.window_id())
1347            {
1348                this.move_entry(
1349                    *dragged_entry,
1350                    entry_id,
1351                    matches!(details.kind, EntryKind::File(_)),
1352                    cx,
1353                );
1354            }
1355        })
1356        .on_move(move |_, this, cx| {
1357            if cx
1358                .global::<DragAndDrop<Workspace>>()
1359                .currently_dragged::<ProjectEntryId>(cx.window_id())
1360                .is_some()
1361            {
1362                this.dragged_entry_destination = if matches!(kind, EntryKind::File(_)) {
1363                    path.parent().map(|parent| Arc::from(parent))
1364                } else {
1365                    Some(path.clone())
1366                };
1367            }
1368        })
1369        .as_draggable(entry_id, {
1370            let row_container_style = theme.dragged_entry.container;
1371
1372            move |_, cx: &mut ViewContext<Workspace>| {
1373                let theme = theme::current(cx).clone();
1374                Self::render_entry_visual_element(
1375                    &details,
1376                    None,
1377                    padding,
1378                    row_container_style,
1379                    &theme.project_panel.dragged_entry,
1380                    cx,
1381                )
1382            }
1383        })
1384        .with_cursor_style(CursorStyle::PointingHand)
1385        .into_any_named("project panel entry")
1386    }
1387}
1388
1389impl View for ProjectPanel {
1390    fn ui_name() -> &'static str {
1391        "ProjectPanel"
1392    }
1393
1394    fn render(&mut self, cx: &mut gpui::ViewContext<Self>) -> gpui::AnyElement<Self> {
1395        enum ProjectPanel {}
1396        let theme = &theme::current(cx).project_panel;
1397        let mut container_style = theme.container;
1398        let padding = std::mem::take(&mut container_style.padding);
1399        let last_worktree_root_id = self.last_worktree_root_id;
1400
1401        let has_worktree = self.visible_entries.len() != 0;
1402
1403        if has_worktree {
1404            Stack::new()
1405                .with_child(
1406                    MouseEventHandler::<ProjectPanel, _>::new(0, cx, |_, cx| {
1407                        UniformList::new(
1408                            self.list.clone(),
1409                            self.visible_entries
1410                                .iter()
1411                                .map(|(_, worktree_entries)| worktree_entries.len())
1412                                .sum(),
1413                            cx,
1414                            move |this, range, items, cx| {
1415                                let theme = theme::current(cx).clone();
1416                                let mut dragged_entry_destination =
1417                                    this.dragged_entry_destination.clone();
1418                                this.for_each_visible_entry(range, cx, |id, details, cx| {
1419                                    items.push(Self::render_entry(
1420                                        id,
1421                                        details,
1422                                        &this.filename_editor,
1423                                        &mut dragged_entry_destination,
1424                                        &theme.project_panel,
1425                                        cx,
1426                                    ));
1427                                });
1428                                this.dragged_entry_destination = dragged_entry_destination;
1429                            },
1430                        )
1431                        .with_padding_top(padding.top)
1432                        .with_padding_bottom(padding.bottom)
1433                        .contained()
1434                        .with_style(container_style)
1435                        .expanded()
1436                    })
1437                    .on_down(MouseButton::Right, move |event, this, cx| {
1438                        // When deploying the context menu anywhere below the last project entry,
1439                        // act as if the user clicked the root of the last worktree.
1440                        if let Some(entry_id) = last_worktree_root_id {
1441                            this.deploy_context_menu(event.position, entry_id, cx);
1442                        }
1443                    }),
1444                )
1445                .with_child(ChildView::new(&self.context_menu, cx))
1446                .into_any_named("project panel")
1447        } else {
1448            Flex::column()
1449                .with_child(
1450                    MouseEventHandler::<Self, _>::new(2, cx, {
1451                        let button_style = theme.open_project_button.clone();
1452                        let context_menu_item_style = theme::current(cx).context_menu.item.clone();
1453                        move |state, cx| {
1454                            let button_style = button_style.style_for(state).clone();
1455                            let context_menu_item = context_menu_item_style
1456                                .active_state()
1457                                .style_for(state)
1458                                .clone();
1459
1460                            theme::ui::keystroke_label(
1461                                "Open a project",
1462                                &button_style,
1463                                &context_menu_item.keystroke,
1464                                Box::new(workspace::Open),
1465                                cx,
1466                            )
1467                        }
1468                    })
1469                    .on_click(MouseButton::Left, move |_, this, cx| {
1470                        if let Some(workspace) = this.workspace.upgrade(cx) {
1471                            workspace.update(cx, |workspace, cx| {
1472                                if let Some(task) = workspace.open(&Default::default(), cx) {
1473                                    task.detach_and_log_err(cx);
1474                                }
1475                            })
1476                        }
1477                    })
1478                    .with_cursor_style(CursorStyle::PointingHand),
1479                )
1480                .contained()
1481                .with_style(container_style)
1482                .into_any_named("empty project panel")
1483        }
1484    }
1485
1486    fn update_keymap_context(&self, keymap: &mut KeymapContext, _: &AppContext) {
1487        Self::reset_to_default_keymap_context(keymap);
1488        keymap.add_identifier("menu");
1489    }
1490
1491    fn focus_in(&mut self, _: gpui::AnyViewHandle, cx: &mut ViewContext<Self>) {
1492        if !self.has_focus {
1493            self.has_focus = true;
1494            cx.emit(Event::Focus);
1495        }
1496    }
1497
1498    fn focus_out(&mut self, _: gpui::AnyViewHandle, _: &mut ViewContext<Self>) {
1499        self.has_focus = false;
1500    }
1501}
1502
1503impl Entity for ProjectPanel {
1504    type Event = Event;
1505}
1506
1507impl workspace::dock::Panel for ProjectPanel {
1508    fn position(&self, cx: &WindowContext) -> DockPosition {
1509        match settings::get::<ProjectPanelSettings>(cx).dock {
1510            ProjectPanelDockPosition::Left => DockPosition::Left,
1511            ProjectPanelDockPosition::Right => DockPosition::Right,
1512        }
1513    }
1514
1515    fn position_is_valid(&self, position: DockPosition) -> bool {
1516        matches!(position, DockPosition::Left | DockPosition::Right)
1517    }
1518
1519    fn set_position(&mut self, position: DockPosition, cx: &mut ViewContext<Self>) {
1520        settings::update_settings_file::<ProjectPanelSettings>(
1521            self.fs.clone(),
1522            cx,
1523            move |settings| {
1524                let dock = match position {
1525                    DockPosition::Left | DockPosition::Bottom => ProjectPanelDockPosition::Left,
1526                    DockPosition::Right => ProjectPanelDockPosition::Right,
1527                };
1528                settings.dock = Some(dock);
1529            },
1530        );
1531    }
1532
1533    fn size(&self, cx: &WindowContext) -> f32 {
1534        self.width
1535            .unwrap_or_else(|| settings::get::<ProjectPanelSettings>(cx).default_width)
1536    }
1537
1538    fn set_size(&mut self, size: f32, cx: &mut ViewContext<Self>) {
1539        self.width = Some(size);
1540        self.serialize(cx);
1541        cx.notify();
1542    }
1543
1544    fn should_zoom_in_on_event(_: &Self::Event) -> bool {
1545        false
1546    }
1547
1548    fn should_zoom_out_on_event(_: &Self::Event) -> bool {
1549        false
1550    }
1551
1552    fn is_zoomed(&self, _: &WindowContext) -> bool {
1553        false
1554    }
1555
1556    fn set_zoomed(&mut self, _: bool, _: &mut ViewContext<Self>) {}
1557
1558    fn set_active(&mut self, _: bool, _: &mut ViewContext<Self>) {}
1559
1560    fn icon_path(&self) -> &'static str {
1561        "icons/folder_tree_16.svg"
1562    }
1563
1564    fn icon_tooltip(&self) -> (String, Option<Box<dyn Action>>) {
1565        ("Project Panel".into(), Some(Box::new(ToggleFocus)))
1566    }
1567
1568    fn should_change_position_on_event(event: &Self::Event) -> bool {
1569        matches!(event, Event::DockPositionChanged)
1570    }
1571
1572    fn should_activate_on_event(_: &Self::Event) -> bool {
1573        false
1574    }
1575
1576    fn should_close_on_event(_: &Self::Event) -> bool {
1577        false
1578    }
1579
1580    fn has_focus(&self, _: &WindowContext) -> bool {
1581        self.has_focus
1582    }
1583
1584    fn is_focus_event(event: &Self::Event) -> bool {
1585        matches!(event, Event::Focus)
1586    }
1587}
1588
1589impl ClipboardEntry {
1590    fn is_cut(&self) -> bool {
1591        matches!(self, Self::Cut { .. })
1592    }
1593
1594    fn entry_id(&self) -> ProjectEntryId {
1595        match self {
1596            ClipboardEntry::Copied { entry_id, .. } | ClipboardEntry::Cut { entry_id, .. } => {
1597                *entry_id
1598            }
1599        }
1600    }
1601
1602    fn worktree_id(&self) -> WorktreeId {
1603        match self {
1604            ClipboardEntry::Copied { worktree_id, .. }
1605            | ClipboardEntry::Cut { worktree_id, .. } => *worktree_id,
1606        }
1607    }
1608}
1609
1610#[cfg(test)]
1611mod tests {
1612    use super::*;
1613    use gpui::{TestAppContext, ViewHandle};
1614    use pretty_assertions::assert_eq;
1615    use project::FakeFs;
1616    use serde_json::json;
1617    use settings::SettingsStore;
1618    use std::{collections::HashSet, path::Path};
1619    use workspace::{pane, AppState};
1620
1621    #[gpui::test]
1622    async fn test_visible_list(cx: &mut gpui::TestAppContext) {
1623        init_test(cx);
1624
1625        let fs = FakeFs::new(cx.background());
1626        fs.insert_tree(
1627            "/root1",
1628            json!({
1629                ".dockerignore": "",
1630                ".git": {
1631                    "HEAD": "",
1632                },
1633                "a": {
1634                    "0": { "q": "", "r": "", "s": "" },
1635                    "1": { "t": "", "u": "" },
1636                    "2": { "v": "", "w": "", "x": "", "y": "" },
1637                },
1638                "b": {
1639                    "3": { "Q": "" },
1640                    "4": { "R": "", "S": "", "T": "", "U": "" },
1641                },
1642                "C": {
1643                    "5": {},
1644                    "6": { "V": "", "W": "" },
1645                    "7": { "X": "" },
1646                    "8": { "Y": {}, "Z": "" }
1647                }
1648            }),
1649        )
1650        .await;
1651        fs.insert_tree(
1652            "/root2",
1653            json!({
1654                "d": {
1655                    "9": ""
1656                },
1657                "e": {}
1658            }),
1659        )
1660        .await;
1661
1662        let project = Project::test(fs.clone(), ["/root1".as_ref(), "/root2".as_ref()], cx).await;
1663        let (_, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
1664        let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
1665        assert_eq!(
1666            visible_entries_as_strings(&panel, 0..50, cx),
1667            &[
1668                "v root1",
1669                "    > .git",
1670                "    > a",
1671                "    > b",
1672                "    > C",
1673                "      .dockerignore",
1674                "v root2",
1675                "    > d",
1676                "    > e",
1677            ]
1678        );
1679
1680        toggle_expand_dir(&panel, "root1/b", cx);
1681        assert_eq!(
1682            visible_entries_as_strings(&panel, 0..50, cx),
1683            &[
1684                "v root1",
1685                "    > .git",
1686                "    > a",
1687                "    v b  <== selected",
1688                "        > 3",
1689                "        > 4",
1690                "    > C",
1691                "      .dockerignore",
1692                "v root2",
1693                "    > d",
1694                "    > e",
1695            ]
1696        );
1697
1698        assert_eq!(
1699            visible_entries_as_strings(&panel, 6..9, cx),
1700            &[
1701                //
1702                "    > C",
1703                "      .dockerignore",
1704                "v root2",
1705            ]
1706        );
1707    }
1708
1709    #[gpui::test(iterations = 30)]
1710    async fn test_editing_files(cx: &mut gpui::TestAppContext) {
1711        init_test(cx);
1712
1713        let fs = FakeFs::new(cx.background());
1714        fs.insert_tree(
1715            "/root1",
1716            json!({
1717                ".dockerignore": "",
1718                ".git": {
1719                    "HEAD": "",
1720                },
1721                "a": {
1722                    "0": { "q": "", "r": "", "s": "" },
1723                    "1": { "t": "", "u": "" },
1724                    "2": { "v": "", "w": "", "x": "", "y": "" },
1725                },
1726                "b": {
1727                    "3": { "Q": "" },
1728                    "4": { "R": "", "S": "", "T": "", "U": "" },
1729                },
1730                "C": {
1731                    "5": {},
1732                    "6": { "V": "", "W": "" },
1733                    "7": { "X": "" },
1734                    "8": { "Y": {}, "Z": "" }
1735                }
1736            }),
1737        )
1738        .await;
1739        fs.insert_tree(
1740            "/root2",
1741            json!({
1742                "d": {
1743                    "9": ""
1744                },
1745                "e": {}
1746            }),
1747        )
1748        .await;
1749
1750        let project = Project::test(fs.clone(), ["/root1".as_ref(), "/root2".as_ref()], cx).await;
1751        let (window_id, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
1752        let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
1753
1754        select_path(&panel, "root1", cx);
1755        assert_eq!(
1756            visible_entries_as_strings(&panel, 0..10, cx),
1757            &[
1758                "v root1  <== selected",
1759                "    > .git",
1760                "    > a",
1761                "    > b",
1762                "    > C",
1763                "      .dockerignore",
1764                "v root2",
1765                "    > d",
1766                "    > e",
1767            ]
1768        );
1769
1770        // Add a file with the root folder selected. The filename editor is placed
1771        // before the first file in the root folder.
1772        panel.update(cx, |panel, cx| panel.new_file(&NewFile, cx));
1773        cx.read_window(window_id, |cx| {
1774            let panel = panel.read(cx);
1775            assert!(panel.filename_editor.is_focused(cx));
1776        });
1777        assert_eq!(
1778            visible_entries_as_strings(&panel, 0..10, cx),
1779            &[
1780                "v root1",
1781                "    > .git",
1782                "    > a",
1783                "    > b",
1784                "    > C",
1785                "      [EDITOR: '']  <== selected",
1786                "      .dockerignore",
1787                "v root2",
1788                "    > d",
1789                "    > e",
1790            ]
1791        );
1792
1793        let confirm = panel.update(cx, |panel, cx| {
1794            panel
1795                .filename_editor
1796                .update(cx, |editor, cx| editor.set_text("the-new-filename", cx));
1797            panel.confirm(&Confirm, cx).unwrap()
1798        });
1799        assert_eq!(
1800            visible_entries_as_strings(&panel, 0..10, cx),
1801            &[
1802                "v root1",
1803                "    > .git",
1804                "    > a",
1805                "    > b",
1806                "    > C",
1807                "      [PROCESSING: 'the-new-filename']  <== selected",
1808                "      .dockerignore",
1809                "v root2",
1810                "    > d",
1811                "    > e",
1812            ]
1813        );
1814
1815        confirm.await.unwrap();
1816        assert_eq!(
1817            visible_entries_as_strings(&panel, 0..10, cx),
1818            &[
1819                "v root1",
1820                "    > .git",
1821                "    > a",
1822                "    > b",
1823                "    > C",
1824                "      .dockerignore",
1825                "      the-new-filename  <== selected",
1826                "v root2",
1827                "    > d",
1828                "    > e",
1829            ]
1830        );
1831
1832        select_path(&panel, "root1/b", cx);
1833        panel.update(cx, |panel, cx| panel.new_file(&NewFile, cx));
1834        assert_eq!(
1835            visible_entries_as_strings(&panel, 0..10, cx),
1836            &[
1837                "v root1",
1838                "    > .git",
1839                "    > a",
1840                "    v b",
1841                "        > 3",
1842                "        > 4",
1843                "          [EDITOR: '']  <== selected",
1844                "    > C",
1845                "      .dockerignore",
1846                "      the-new-filename",
1847            ]
1848        );
1849
1850        panel
1851            .update(cx, |panel, cx| {
1852                panel
1853                    .filename_editor
1854                    .update(cx, |editor, cx| editor.set_text("another-filename", cx));
1855                panel.confirm(&Confirm, cx).unwrap()
1856            })
1857            .await
1858            .unwrap();
1859        assert_eq!(
1860            visible_entries_as_strings(&panel, 0..10, cx),
1861            &[
1862                "v root1",
1863                "    > .git",
1864                "    > a",
1865                "    v b",
1866                "        > 3",
1867                "        > 4",
1868                "          another-filename  <== selected",
1869                "    > C",
1870                "      .dockerignore",
1871                "      the-new-filename",
1872            ]
1873        );
1874
1875        select_path(&panel, "root1/b/another-filename", cx);
1876        panel.update(cx, |panel, cx| panel.rename(&Rename, cx));
1877        assert_eq!(
1878            visible_entries_as_strings(&panel, 0..10, cx),
1879            &[
1880                "v root1",
1881                "    > .git",
1882                "    > a",
1883                "    v b",
1884                "        > 3",
1885                "        > 4",
1886                "          [EDITOR: 'another-filename']  <== selected",
1887                "    > C",
1888                "      .dockerignore",
1889                "      the-new-filename",
1890            ]
1891        );
1892
1893        let confirm = panel.update(cx, |panel, cx| {
1894            panel
1895                .filename_editor
1896                .update(cx, |editor, cx| editor.set_text("a-different-filename", cx));
1897            panel.confirm(&Confirm, cx).unwrap()
1898        });
1899        assert_eq!(
1900            visible_entries_as_strings(&panel, 0..10, cx),
1901            &[
1902                "v root1",
1903                "    > .git",
1904                "    > a",
1905                "    v b",
1906                "        > 3",
1907                "        > 4",
1908                "          [PROCESSING: 'a-different-filename']  <== selected",
1909                "    > C",
1910                "      .dockerignore",
1911                "      the-new-filename",
1912            ]
1913        );
1914
1915        confirm.await.unwrap();
1916        assert_eq!(
1917            visible_entries_as_strings(&panel, 0..10, cx),
1918            &[
1919                "v root1",
1920                "    > .git",
1921                "    > a",
1922                "    v b",
1923                "        > 3",
1924                "        > 4",
1925                "          a-different-filename  <== selected",
1926                "    > C",
1927                "      .dockerignore",
1928                "      the-new-filename",
1929            ]
1930        );
1931
1932        panel.update(cx, |panel, cx| panel.new_directory(&NewDirectory, cx));
1933        assert_eq!(
1934            visible_entries_as_strings(&panel, 0..10, cx),
1935            &[
1936                "v root1",
1937                "    > .git",
1938                "    > a",
1939                "    v b",
1940                "        > [EDITOR: '']  <== selected",
1941                "        > 3",
1942                "        > 4",
1943                "          a-different-filename",
1944                "    > C",
1945                "      .dockerignore",
1946            ]
1947        );
1948
1949        let confirm = panel.update(cx, |panel, cx| {
1950            panel
1951                .filename_editor
1952                .update(cx, |editor, cx| editor.set_text("new-dir", cx));
1953            panel.confirm(&Confirm, cx).unwrap()
1954        });
1955        panel.update(cx, |panel, cx| panel.select_next(&Default::default(), cx));
1956        assert_eq!(
1957            visible_entries_as_strings(&panel, 0..10, cx),
1958            &[
1959                "v root1",
1960                "    > .git",
1961                "    > a",
1962                "    v b",
1963                "        > [PROCESSING: 'new-dir']",
1964                "        > 3  <== selected",
1965                "        > 4",
1966                "          a-different-filename",
1967                "    > C",
1968                "      .dockerignore",
1969            ]
1970        );
1971
1972        confirm.await.unwrap();
1973        assert_eq!(
1974            visible_entries_as_strings(&panel, 0..10, cx),
1975            &[
1976                "v root1",
1977                "    > .git",
1978                "    > a",
1979                "    v b",
1980                "        > 3  <== selected",
1981                "        > 4",
1982                "        > new-dir",
1983                "          a-different-filename",
1984                "    > C",
1985                "      .dockerignore",
1986            ]
1987        );
1988
1989        panel.update(cx, |panel, cx| panel.rename(&Default::default(), cx));
1990        assert_eq!(
1991            visible_entries_as_strings(&panel, 0..10, cx),
1992            &[
1993                "v root1",
1994                "    > .git",
1995                "    > a",
1996                "    v b",
1997                "        > [EDITOR: '3']  <== selected",
1998                "        > 4",
1999                "        > new-dir",
2000                "          a-different-filename",
2001                "    > C",
2002                "      .dockerignore",
2003            ]
2004        );
2005
2006        // Dismiss the rename editor when it loses focus.
2007        workspace.update(cx, |_, cx| cx.focus_self());
2008        assert_eq!(
2009            visible_entries_as_strings(&panel, 0..10, cx),
2010            &[
2011                "v root1",
2012                "    > .git",
2013                "    > a",
2014                "    v b",
2015                "        > 3  <== selected",
2016                "        > 4",
2017                "        > new-dir",
2018                "          a-different-filename",
2019                "    > C",
2020                "      .dockerignore",
2021            ]
2022        );
2023    }
2024
2025    #[gpui::test(iterations = 30)]
2026    async fn test_adding_directories_via_file(cx: &mut gpui::TestAppContext) {
2027        init_test(cx);
2028
2029        let fs = FakeFs::new(cx.background());
2030        fs.insert_tree(
2031            "/root1",
2032            json!({
2033                ".dockerignore": "",
2034                ".git": {
2035                    "HEAD": "",
2036                },
2037                "a": {
2038                    "0": { "q": "", "r": "", "s": "" },
2039                    "1": { "t": "", "u": "" },
2040                    "2": { "v": "", "w": "", "x": "", "y": "" },
2041                },
2042                "b": {
2043                    "3": { "Q": "" },
2044                    "4": { "R": "", "S": "", "T": "", "U": "" },
2045                },
2046                "C": {
2047                    "5": {},
2048                    "6": { "V": "", "W": "" },
2049                    "7": { "X": "" },
2050                    "8": { "Y": {}, "Z": "" }
2051                }
2052            }),
2053        )
2054        .await;
2055        fs.insert_tree(
2056            "/root2",
2057            json!({
2058                "d": {
2059                    "9": ""
2060                },
2061                "e": {}
2062            }),
2063        )
2064        .await;
2065
2066        let project = Project::test(fs.clone(), ["/root1".as_ref(), "/root2".as_ref()], cx).await;
2067        let (window_id, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
2068        let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
2069
2070        select_path(&panel, "root1", cx);
2071        assert_eq!(
2072            visible_entries_as_strings(&panel, 0..10, cx),
2073            &[
2074                "v root1  <== selected",
2075                "    > .git",
2076                "    > a",
2077                "    > b",
2078                "    > C",
2079                "      .dockerignore",
2080                "v root2",
2081                "    > d",
2082                "    > e",
2083            ]
2084        );
2085
2086        // Add a file with the root folder selected. The filename editor is placed
2087        // before the first file in the root folder.
2088        panel.update(cx, |panel, cx| panel.new_file(&NewFile, cx));
2089        cx.read_window(window_id, |cx| {
2090            let panel = panel.read(cx);
2091            assert!(panel.filename_editor.is_focused(cx));
2092        });
2093        assert_eq!(
2094            visible_entries_as_strings(&panel, 0..10, cx),
2095            &[
2096                "v root1",
2097                "    > .git",
2098                "    > a",
2099                "    > b",
2100                "    > C",
2101                "      [EDITOR: '']  <== selected",
2102                "      .dockerignore",
2103                "v root2",
2104                "    > d",
2105                "    > e",
2106            ]
2107        );
2108
2109        let confirm = panel.update(cx, |panel, cx| {
2110            panel.filename_editor.update(cx, |editor, cx| {
2111                editor.set_text("/bdir1/dir2/the-new-filename", cx)
2112            });
2113            panel.confirm(&Confirm, cx).unwrap()
2114        });
2115
2116        assert_eq!(
2117            visible_entries_as_strings(&panel, 0..10, cx),
2118            &[
2119                "v root1",
2120                "    > .git",
2121                "    > a",
2122                "    > b",
2123                "    > C",
2124                "      [PROCESSING: '/bdir1/dir2/the-new-filename']  <== selected",
2125                "      .dockerignore",
2126                "v root2",
2127                "    > d",
2128                "    > e",
2129            ]
2130        );
2131
2132        confirm.await.unwrap();
2133        assert_eq!(
2134            visible_entries_as_strings(&panel, 0..13, cx),
2135            &[
2136                "v root1",
2137                "    > .git",
2138                "    > a",
2139                "    > b",
2140                "    v bdir1",
2141                "        v dir2",
2142                "              the-new-filename  <== selected",
2143                "    > C",
2144                "      .dockerignore",
2145                "v root2",
2146                "    > d",
2147                "    > e",
2148            ]
2149        );
2150    }
2151
2152    #[gpui::test]
2153    async fn test_copy_paste(cx: &mut gpui::TestAppContext) {
2154        init_test(cx);
2155
2156        let fs = FakeFs::new(cx.background());
2157        fs.insert_tree(
2158            "/root1",
2159            json!({
2160                "one.two.txt": "",
2161                "one.txt": ""
2162            }),
2163        )
2164        .await;
2165
2166        let project = Project::test(fs.clone(), ["/root1".as_ref()], cx).await;
2167        let (_, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
2168        let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
2169
2170        panel.update(cx, |panel, cx| {
2171            panel.select_next(&Default::default(), cx);
2172            panel.select_next(&Default::default(), cx);
2173        });
2174
2175        assert_eq!(
2176            visible_entries_as_strings(&panel, 0..50, cx),
2177            &[
2178                //
2179                "v root1",
2180                "      one.two.txt  <== selected",
2181                "      one.txt",
2182            ]
2183        );
2184
2185        // Regression test - file name is created correctly when
2186        // the copied file's name contains multiple dots.
2187        panel.update(cx, |panel, cx| {
2188            panel.copy(&Default::default(), cx);
2189            panel.paste(&Default::default(), cx);
2190        });
2191        cx.foreground().run_until_parked();
2192
2193        assert_eq!(
2194            visible_entries_as_strings(&panel, 0..50, cx),
2195            &[
2196                //
2197                "v root1",
2198                "      one.two copy.txt",
2199                "      one.two.txt  <== selected",
2200                "      one.txt",
2201            ]
2202        );
2203
2204        panel.update(cx, |panel, cx| {
2205            panel.paste(&Default::default(), cx);
2206        });
2207        cx.foreground().run_until_parked();
2208
2209        assert_eq!(
2210            visible_entries_as_strings(&panel, 0..50, cx),
2211            &[
2212                //
2213                "v root1",
2214                "      one.two copy 1.txt",
2215                "      one.two copy.txt",
2216                "      one.two.txt  <== selected",
2217                "      one.txt",
2218            ]
2219        );
2220    }
2221
2222    #[gpui::test]
2223    async fn test_remove_opened_file(cx: &mut gpui::TestAppContext) {
2224        init_test_with_editor(cx);
2225
2226        let fs = FakeFs::new(cx.background());
2227        fs.insert_tree(
2228            "/src",
2229            json!({
2230                "test": {
2231                    "first.rs": "// First Rust file",
2232                    "second.rs": "// Second Rust file",
2233                    "third.rs": "// Third Rust file",
2234                }
2235            }),
2236        )
2237        .await;
2238
2239        let project = Project::test(fs.clone(), ["/src".as_ref()], cx).await;
2240        let (window_id, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
2241        let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
2242
2243        toggle_expand_dir(&panel, "src/test", cx);
2244        select_path(&panel, "src/test/first.rs", cx);
2245        panel.update(cx, |panel, cx| panel.confirm(&Confirm, cx));
2246        cx.foreground().run_until_parked();
2247        assert_eq!(
2248            visible_entries_as_strings(&panel, 0..10, cx),
2249            &[
2250                "v src",
2251                "    v test",
2252                "          first.rs  <== selected",
2253                "          second.rs",
2254                "          third.rs"
2255            ]
2256        );
2257        ensure_single_file_is_opened(window_id, &workspace, "test/first.rs", cx);
2258
2259        submit_deletion(window_id, &panel, cx);
2260        assert_eq!(
2261            visible_entries_as_strings(&panel, 0..10, cx),
2262            &[
2263                "v src",
2264                "    v test",
2265                "          second.rs",
2266                "          third.rs"
2267            ],
2268            "Project panel should have no deleted file, no other file is selected in it"
2269        );
2270        ensure_no_open_items_and_panes(window_id, &workspace, cx);
2271
2272        select_path(&panel, "src/test/second.rs", cx);
2273        panel.update(cx, |panel, cx| panel.confirm(&Confirm, cx));
2274        cx.foreground().run_until_parked();
2275        assert_eq!(
2276            visible_entries_as_strings(&panel, 0..10, cx),
2277            &[
2278                "v src",
2279                "    v test",
2280                "          second.rs  <== selected",
2281                "          third.rs"
2282            ]
2283        );
2284        ensure_single_file_is_opened(window_id, &workspace, "test/second.rs", cx);
2285
2286        cx.update_window(window_id, |cx| {
2287            let active_items = workspace
2288                .read(cx)
2289                .panes()
2290                .iter()
2291                .filter_map(|pane| pane.read(cx).active_item())
2292                .collect::<Vec<_>>();
2293            assert_eq!(active_items.len(), 1);
2294            let open_editor = active_items
2295                .into_iter()
2296                .next()
2297                .unwrap()
2298                .downcast::<Editor>()
2299                .expect("Open item should be an editor");
2300            open_editor.update(cx, |editor, cx| editor.set_text("Another text!", cx));
2301        });
2302        submit_deletion(window_id, &panel, cx);
2303        assert_eq!(
2304            visible_entries_as_strings(&panel, 0..10, cx),
2305            &["v src", "    v test", "          third.rs"],
2306            "Project panel should have no deleted file, with one last file remaining"
2307        );
2308        ensure_no_open_items_and_panes(window_id, &workspace, cx);
2309    }
2310
2311    #[gpui::test]
2312    async fn test_create_duplicate_items(cx: &mut gpui::TestAppContext) {
2313        init_test_with_editor(cx);
2314
2315        let fs = FakeFs::new(cx.background());
2316        fs.insert_tree(
2317            "/src",
2318            json!({
2319                "test": {
2320                    "first.rs": "// First Rust file",
2321                    "second.rs": "// Second Rust file",
2322                    "third.rs": "// Third Rust file",
2323                }
2324            }),
2325        )
2326        .await;
2327
2328        let project = Project::test(fs.clone(), ["/src".as_ref()], cx).await;
2329        let (window_id, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
2330        let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
2331
2332        select_path(&panel, "src/", cx);
2333        panel.update(cx, |panel, cx| panel.confirm(&Confirm, cx));
2334        cx.foreground().run_until_parked();
2335        assert_eq!(
2336            visible_entries_as_strings(&panel, 0..10, cx),
2337            &["v src  <== selected", "    > test"]
2338        );
2339        panel.update(cx, |panel, cx| panel.new_directory(&NewDirectory, cx));
2340        cx.read_window(window_id, |cx| {
2341            let panel = panel.read(cx);
2342            assert!(panel.filename_editor.is_focused(cx));
2343        });
2344        assert_eq!(
2345            visible_entries_as_strings(&panel, 0..10, cx),
2346            &["v src", "    > [EDITOR: '']  <== selected", "    > test"]
2347        );
2348        panel.update(cx, |panel, cx| {
2349            panel
2350                .filename_editor
2351                .update(cx, |editor, cx| editor.set_text("test", cx));
2352            assert!(
2353                panel.confirm(&Confirm, cx).is_none(),
2354                "Should not allow to confirm on conflicting new directory name"
2355            )
2356        });
2357        assert_eq!(
2358            visible_entries_as_strings(&panel, 0..10, cx),
2359            &["v src", "    > test"],
2360            "File list should be unchanged after failed folder create confirmation"
2361        );
2362
2363        select_path(&panel, "src/test/", cx);
2364        panel.update(cx, |panel, cx| panel.confirm(&Confirm, cx));
2365        cx.foreground().run_until_parked();
2366        assert_eq!(
2367            visible_entries_as_strings(&panel, 0..10, cx),
2368            &["v src", "    > test  <== selected"]
2369        );
2370        panel.update(cx, |panel, cx| panel.new_file(&NewFile, cx));
2371        cx.read_window(window_id, |cx| {
2372            let panel = panel.read(cx);
2373            assert!(panel.filename_editor.is_focused(cx));
2374        });
2375        assert_eq!(
2376            visible_entries_as_strings(&panel, 0..10, cx),
2377            &[
2378                "v src",
2379                "    v test",
2380                "          [EDITOR: '']  <== selected",
2381                "          first.rs",
2382                "          second.rs",
2383                "          third.rs"
2384            ]
2385        );
2386        panel.update(cx, |panel, cx| {
2387            panel
2388                .filename_editor
2389                .update(cx, |editor, cx| editor.set_text("first.rs", cx));
2390            assert!(
2391                panel.confirm(&Confirm, cx).is_none(),
2392                "Should not allow to confirm on conflicting new file name"
2393            )
2394        });
2395        assert_eq!(
2396            visible_entries_as_strings(&panel, 0..10, cx),
2397            &[
2398                "v src",
2399                "    v test",
2400                "          first.rs",
2401                "          second.rs",
2402                "          third.rs"
2403            ],
2404            "File list should be unchanged after failed file create confirmation"
2405        );
2406
2407        select_path(&panel, "src/test/first.rs", cx);
2408        panel.update(cx, |panel, cx| panel.confirm(&Confirm, cx));
2409        cx.foreground().run_until_parked();
2410        assert_eq!(
2411            visible_entries_as_strings(&panel, 0..10, cx),
2412            &[
2413                "v src",
2414                "    v test",
2415                "          first.rs  <== selected",
2416                "          second.rs",
2417                "          third.rs"
2418            ],
2419        );
2420        panel.update(cx, |panel, cx| panel.rename(&Rename, cx));
2421        cx.read_window(window_id, |cx| {
2422            let panel = panel.read(cx);
2423            assert!(panel.filename_editor.is_focused(cx));
2424        });
2425        assert_eq!(
2426            visible_entries_as_strings(&panel, 0..10, cx),
2427            &[
2428                "v src",
2429                "    v test",
2430                "          [EDITOR: 'first.rs']  <== selected",
2431                "          second.rs",
2432                "          third.rs"
2433            ]
2434        );
2435        panel.update(cx, |panel, cx| {
2436            panel
2437                .filename_editor
2438                .update(cx, |editor, cx| editor.set_text("second.rs", cx));
2439            assert!(
2440                panel.confirm(&Confirm, cx).is_none(),
2441                "Should not allow to confirm on conflicting file rename"
2442            )
2443        });
2444        assert_eq!(
2445            visible_entries_as_strings(&panel, 0..10, cx),
2446            &[
2447                "v src",
2448                "    v test",
2449                "          first.rs  <== selected",
2450                "          second.rs",
2451                "          third.rs"
2452            ],
2453            "File list should be unchanged after failed rename confirmation"
2454        );
2455    }
2456
2457    fn toggle_expand_dir(
2458        panel: &ViewHandle<ProjectPanel>,
2459        path: impl AsRef<Path>,
2460        cx: &mut TestAppContext,
2461    ) {
2462        let path = path.as_ref();
2463        panel.update(cx, |panel, cx| {
2464            for worktree in panel.project.read(cx).worktrees(cx).collect::<Vec<_>>() {
2465                let worktree = worktree.read(cx);
2466                if let Ok(relative_path) = path.strip_prefix(worktree.root_name()) {
2467                    let entry_id = worktree.entry_for_path(relative_path).unwrap().id;
2468                    panel.toggle_expanded(entry_id, cx);
2469                    return;
2470                }
2471            }
2472            panic!("no worktree for path {:?}", path);
2473        });
2474    }
2475
2476    fn select_path(
2477        panel: &ViewHandle<ProjectPanel>,
2478        path: impl AsRef<Path>,
2479        cx: &mut TestAppContext,
2480    ) {
2481        let path = path.as_ref();
2482        panel.update(cx, |panel, cx| {
2483            for worktree in panel.project.read(cx).worktrees(cx).collect::<Vec<_>>() {
2484                let worktree = worktree.read(cx);
2485                if let Ok(relative_path) = path.strip_prefix(worktree.root_name()) {
2486                    let entry_id = worktree.entry_for_path(relative_path).unwrap().id;
2487                    panel.selection = Some(Selection {
2488                        worktree_id: worktree.id(),
2489                        entry_id,
2490                    });
2491                    return;
2492                }
2493            }
2494            panic!("no worktree for path {:?}", path);
2495        });
2496    }
2497
2498    fn visible_entries_as_strings(
2499        panel: &ViewHandle<ProjectPanel>,
2500        range: Range<usize>,
2501        cx: &mut TestAppContext,
2502    ) -> Vec<String> {
2503        let mut result = Vec::new();
2504        let mut project_entries = HashSet::new();
2505        let mut has_editor = false;
2506
2507        panel.update(cx, |panel, cx| {
2508            panel.for_each_visible_entry(range, cx, |project_entry, details, _| {
2509                if details.is_editing {
2510                    assert!(!has_editor, "duplicate editor entry");
2511                    has_editor = true;
2512                } else {
2513                    assert!(
2514                        project_entries.insert(project_entry),
2515                        "duplicate project entry {:?} {:?}",
2516                        project_entry,
2517                        details
2518                    );
2519                }
2520
2521                let indent = "    ".repeat(details.depth);
2522                let icon = if details.kind.is_dir() {
2523                    if details.is_expanded {
2524                        "v "
2525                    } else {
2526                        "> "
2527                    }
2528                } else {
2529                    "  "
2530                };
2531                let name = if details.is_editing {
2532                    format!("[EDITOR: '{}']", details.filename)
2533                } else if details.is_processing {
2534                    format!("[PROCESSING: '{}']", details.filename)
2535                } else {
2536                    details.filename.clone()
2537                };
2538                let selected = if details.is_selected {
2539                    "  <== selected"
2540                } else {
2541                    ""
2542                };
2543                result.push(format!("{indent}{icon}{name}{selected}"));
2544            });
2545        });
2546
2547        result
2548    }
2549
2550    fn init_test(cx: &mut TestAppContext) {
2551        cx.foreground().forbid_parking();
2552        cx.update(|cx| {
2553            cx.set_global(SettingsStore::test(cx));
2554            init_settings(cx);
2555            theme::init((), cx);
2556            language::init(cx);
2557            editor::init_settings(cx);
2558            crate::init(cx);
2559            workspace::init_settings(cx);
2560            Project::init_settings(cx);
2561        });
2562    }
2563
2564    fn init_test_with_editor(cx: &mut TestAppContext) {
2565        cx.foreground().forbid_parking();
2566        cx.update(|cx| {
2567            let app_state = AppState::test(cx);
2568            theme::init((), cx);
2569            init_settings(cx);
2570            language::init(cx);
2571            editor::init(cx);
2572            pane::init(cx);
2573            crate::init(cx);
2574            workspace::init(app_state.clone(), cx);
2575            Project::init_settings(cx);
2576        });
2577    }
2578
2579    fn ensure_single_file_is_opened(
2580        window_id: usize,
2581        workspace: &ViewHandle<Workspace>,
2582        expected_path: &str,
2583        cx: &mut TestAppContext,
2584    ) {
2585        cx.read_window(window_id, |cx| {
2586            let workspace = workspace.read(cx);
2587            let worktrees = workspace.worktrees(cx).collect::<Vec<_>>();
2588            assert_eq!(worktrees.len(), 1);
2589            let worktree_id = WorktreeId::from_usize(worktrees[0].id());
2590
2591            let open_project_paths = workspace
2592                .panes()
2593                .iter()
2594                .filter_map(|pane| pane.read(cx).active_item()?.project_path(cx))
2595                .collect::<Vec<_>>();
2596            assert_eq!(
2597                open_project_paths,
2598                vec![ProjectPath {
2599                    worktree_id,
2600                    path: Arc::from(Path::new(expected_path))
2601                }],
2602                "Should have opened file, selected in project panel"
2603            );
2604        });
2605    }
2606
2607    fn submit_deletion(
2608        window_id: usize,
2609        panel: &ViewHandle<ProjectPanel>,
2610        cx: &mut TestAppContext,
2611    ) {
2612        assert!(
2613            !cx.has_pending_prompt(window_id),
2614            "Should have no prompts before the deletion"
2615        );
2616        panel.update(cx, |panel, cx| {
2617            panel
2618                .delete(&Delete, cx)
2619                .expect("Deletion start")
2620                .detach_and_log_err(cx);
2621        });
2622        assert!(
2623            cx.has_pending_prompt(window_id),
2624            "Should have a prompt after the deletion"
2625        );
2626        cx.simulate_prompt_answer(window_id, 0);
2627        assert!(
2628            !cx.has_pending_prompt(window_id),
2629            "Should have no prompts after prompt was replied to"
2630        );
2631        cx.foreground().run_until_parked();
2632    }
2633
2634    fn ensure_no_open_items_and_panes(
2635        window_id: usize,
2636        workspace: &ViewHandle<Workspace>,
2637        cx: &mut TestAppContext,
2638    ) {
2639        assert!(
2640            !cx.has_pending_prompt(window_id),
2641            "Should have no prompts after deletion operation closes the file"
2642        );
2643        cx.read_window(window_id, |cx| {
2644            let open_project_paths = workspace
2645                .read(cx)
2646                .panes()
2647                .iter()
2648                .filter_map(|pane| pane.read(cx).active_item()?.project_path(cx))
2649                .collect::<Vec<_>>();
2650            assert!(
2651                open_project_paths.is_empty(),
2652                "Deleted file's buffer should be closed, but got open files: {open_project_paths:?}"
2653            );
2654        });
2655    }
2656}