project_panel.rs

   1mod project_panel_settings;
   2mod utils;
   3
   4use anyhow::{Context as _, Result};
   5use client::{ErrorCode, ErrorExt};
   6use collections::{BTreeSet, HashMap, hash_map};
   7use command_palette_hooks::CommandPaletteFilter;
   8use db::kvp::KEY_VALUE_STORE;
   9use editor::{
  10    Editor, EditorEvent, EditorSettings, ShowScrollbar,
  11    items::{
  12        entry_diagnostic_aware_icon_decoration_and_color,
  13        entry_diagnostic_aware_icon_name_and_color, entry_git_aware_label_color,
  14    },
  15    scroll::ScrollbarAutoHide,
  16};
  17use file_icons::FileIcons;
  18use git::status::GitSummary;
  19use gpui::{
  20    Action, AnyElement, App, ArcCow, AsyncWindowContext, Bounds, ClipboardItem, Context,
  21    CursorStyle, DismissEvent, Div, DragMoveEvent, Entity, EventEmitter, ExternalPaths,
  22    FocusHandle, Focusable, Hsla, InteractiveElement, KeyContext, ListHorizontalSizingBehavior,
  23    ListSizingBehavior, Modifiers, ModifiersChangedEvent, MouseButton, MouseDownEvent,
  24    ParentElement, Pixels, Point, PromptLevel, Render, ScrollStrategy, Stateful, Styled,
  25    Subscription, Task, UniformListScrollHandle, WeakEntity, Window, actions, anchored, deferred,
  26    div, hsla, linear_color_stop, linear_gradient, point, px, size, transparent_white,
  27    uniform_list,
  28};
  29use indexmap::IndexMap;
  30use language::DiagnosticSeverity;
  31use menu::{Confirm, SelectFirst, SelectLast, SelectNext, SelectPrevious};
  32use project::{
  33    Entry, EntryKind, Fs, GitEntry, GitEntryRef, GitTraversal, Project, ProjectEntryId,
  34    ProjectPath, Worktree, WorktreeId,
  35    git_store::{GitStoreEvent, git_traversal::ChildEntriesGitIter},
  36    relativize_path,
  37};
  38use project_panel_settings::{
  39    ProjectPanelDockPosition, ProjectPanelSettings, ShowDiagnostics, ShowIndentGuides,
  40};
  41use schemars::JsonSchema;
  42use serde::{Deserialize, Serialize};
  43use settings::{Settings, SettingsStore, update_settings_file};
  44use smallvec::SmallVec;
  45use std::any::TypeId;
  46use std::{
  47    cell::OnceCell,
  48    cmp,
  49    collections::HashSet,
  50    ffi::OsStr,
  51    ops::Range,
  52    path::{Path, PathBuf},
  53    sync::Arc,
  54    time::Duration,
  55};
  56use theme::ThemeSettings;
  57use ui::{
  58    Color, ContextMenu, DecoratedIcon, Icon, IconDecoration, IconDecorationKind, IndentGuideColors,
  59    IndentGuideLayout, KeyBinding, Label, LabelSize, ListItem, ListItemSpacing, ScrollableHandle,
  60    Scrollbar, ScrollbarState, StickyCandidate, Tooltip, prelude::*, v_flex,
  61};
  62use util::{ResultExt, TakeUntilExt, TryFutureExt, maybe, paths::compare_paths};
  63use workspace::{
  64    DraggedSelection, OpenInTerminal, OpenOptions, OpenVisible, PreviewTabsSettings, SelectedEntry,
  65    Workspace,
  66    dock::{DockPosition, Panel, PanelEvent},
  67    notifications::{DetachAndPromptErr, NotifyTaskExt},
  68};
  69use worktree::CreatedEntry;
  70use zed_actions::OpenRecent;
  71
  72const PROJECT_PANEL_KEY: &str = "ProjectPanel";
  73const NEW_ENTRY_ID: ProjectEntryId = ProjectEntryId::MAX;
  74
  75pub struct ProjectPanel {
  76    project: Entity<Project>,
  77    fs: Arc<dyn Fs>,
  78    focus_handle: FocusHandle,
  79    scroll_handle: UniformListScrollHandle,
  80    // An update loop that keeps incrementing/decrementing scroll offset while there is a dragged entry that's
  81    // hovered over the start/end of a list.
  82    hover_scroll_task: Option<Task<()>>,
  83    visible_entries: Vec<(WorktreeId, Vec<GitEntry>, OnceCell<HashSet<Arc<Path>>>)>,
  84    /// Maps from leaf project entry ID to the currently selected ancestor.
  85    /// Relevant only for auto-fold dirs, where a single project panel entry may actually consist of several
  86    /// project entries (and all non-leaf nodes are guaranteed to be directories).
  87    ancestors: HashMap<ProjectEntryId, FoldedAncestors>,
  88    folded_directory_drag_target: Option<FoldedDirectoryDragTarget>,
  89    last_worktree_root_id: Option<ProjectEntryId>,
  90    drag_target_entry: Option<DragTargetEntry>,
  91    expanded_dir_ids: HashMap<WorktreeId, Vec<ProjectEntryId>>,
  92    unfolded_dir_ids: HashSet<ProjectEntryId>,
  93    // Currently selected leaf entry (see auto-folding for a definition of that) in a file tree
  94    selection: Option<SelectedEntry>,
  95    marked_entries: BTreeSet<SelectedEntry>,
  96    context_menu: Option<(Entity<ContextMenu>, Point<Pixels>, Subscription)>,
  97    edit_state: Option<EditState>,
  98    filename_editor: Entity<Editor>,
  99    clipboard: Option<ClipboardEntry>,
 100    _dragged_entry_destination: Option<Arc<Path>>,
 101    workspace: WeakEntity<Workspace>,
 102    width: Option<Pixels>,
 103    pending_serialization: Task<Option<()>>,
 104    show_scrollbar: bool,
 105    vertical_scrollbar_state: ScrollbarState,
 106    horizontal_scrollbar_state: ScrollbarState,
 107    hide_scrollbar_task: Option<Task<()>>,
 108    diagnostics: HashMap<(WorktreeId, PathBuf), DiagnosticSeverity>,
 109    max_width_item_index: Option<usize>,
 110    // We keep track of the mouse down state on entries so we don't flash the UI
 111    // in case a user clicks to open a file.
 112    mouse_down: bool,
 113    hover_expand_task: Option<Task<()>>,
 114    previous_drag_position: Option<Point<Pixels>>,
 115}
 116
 117struct DragTargetEntry {
 118    /// The entry currently under the mouse cursor during a drag operation
 119    entry_id: ProjectEntryId,
 120    /// Highlight this entry along with all of its children
 121    highlight_entry_id: Option<ProjectEntryId>,
 122}
 123
 124#[derive(Copy, Clone, Debug)]
 125struct FoldedDirectoryDragTarget {
 126    entry_id: ProjectEntryId,
 127    index: usize,
 128    /// Whether we are dragging over the delimiter rather than the component itself.
 129    is_delimiter_target: bool,
 130}
 131
 132#[derive(Clone, Debug)]
 133enum ValidationState {
 134    None,
 135    Warning(String),
 136    Error(String),
 137}
 138
 139#[derive(Clone, Debug)]
 140struct EditState {
 141    worktree_id: WorktreeId,
 142    entry_id: ProjectEntryId,
 143    leaf_entry_id: Option<ProjectEntryId>,
 144    is_dir: bool,
 145    depth: usize,
 146    processing_filename: Option<String>,
 147    previously_focused: Option<SelectedEntry>,
 148    validation_state: ValidationState,
 149}
 150
 151impl EditState {
 152    fn is_new_entry(&self) -> bool {
 153        self.leaf_entry_id.is_none()
 154    }
 155}
 156
 157#[derive(Clone, Debug)]
 158enum ClipboardEntry {
 159    Copied(BTreeSet<SelectedEntry>),
 160    Cut(BTreeSet<SelectedEntry>),
 161}
 162
 163#[derive(Debug, PartialEq, Eq, Clone)]
 164struct EntryDetails {
 165    filename: String,
 166    icon: Option<SharedString>,
 167    path: Arc<Path>,
 168    depth: usize,
 169    kind: EntryKind,
 170    is_ignored: bool,
 171    is_expanded: bool,
 172    is_selected: bool,
 173    is_marked: bool,
 174    is_editing: bool,
 175    is_processing: bool,
 176    is_cut: bool,
 177    sticky: Option<StickyDetails>,
 178    filename_text_color: Color,
 179    diagnostic_severity: Option<DiagnosticSeverity>,
 180    git_status: GitSummary,
 181    is_private: bool,
 182    worktree_id: WorktreeId,
 183    canonical_path: Option<Arc<Path>>,
 184}
 185
 186#[derive(Debug, PartialEq, Eq, Clone)]
 187struct StickyDetails {
 188    sticky_index: usize,
 189}
 190
 191/// Permanently deletes the selected file or directory.
 192#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
 193#[action(namespace = project_panel)]
 194#[serde(deny_unknown_fields)]
 195struct Delete {
 196    #[serde(default)]
 197    pub skip_prompt: bool,
 198}
 199
 200/// Moves the selected file or directory to the system trash.
 201#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
 202#[action(namespace = project_panel)]
 203#[serde(deny_unknown_fields)]
 204struct Trash {
 205    #[serde(default)]
 206    pub skip_prompt: bool,
 207}
 208
 209actions!(
 210    project_panel,
 211    [
 212        /// Expands the selected entry in the project tree.
 213        ExpandSelectedEntry,
 214        /// Collapses the selected entry in the project tree.
 215        CollapseSelectedEntry,
 216        /// Collapses all entries in the project tree.
 217        CollapseAllEntries,
 218        /// Creates a new directory.
 219        NewDirectory,
 220        /// Creates a new file.
 221        NewFile,
 222        /// Copies the selected file or directory.
 223        Copy,
 224        /// Duplicates the selected file or directory.
 225        Duplicate,
 226        /// Reveals the selected item in the system file manager.
 227        RevealInFileManager,
 228        /// Removes the selected folder from the project.
 229        RemoveFromProject,
 230        /// Opens the selected file with the system's default application.
 231        OpenWithSystem,
 232        /// Cuts the selected file or directory.
 233        Cut,
 234        /// Pastes the previously cut or copied item.
 235        Paste,
 236        /// Renames the selected file or directory.
 237        Rename,
 238        /// Opens the selected file in the editor.
 239        Open,
 240        /// Opens the selected file in a permanent tab.
 241        OpenPermanent,
 242        /// Toggles focus on the project panel.
 243        ToggleFocus,
 244        /// Toggles visibility of git-ignored files.
 245        ToggleHideGitIgnore,
 246        /// Starts a new search in the selected directory.
 247        NewSearchInDirectory,
 248        /// Unfolds the selected directory.
 249        UnfoldDirectory,
 250        /// Folds the selected directory.
 251        FoldDirectory,
 252        /// Selects the parent directory.
 253        SelectParent,
 254        /// Selects the next entry with git changes.
 255        SelectNextGitEntry,
 256        /// Selects the previous entry with git changes.
 257        SelectPrevGitEntry,
 258        /// Selects the next entry with diagnostics.
 259        SelectNextDiagnostic,
 260        /// Selects the previous entry with diagnostics.
 261        SelectPrevDiagnostic,
 262        /// Selects the next directory.
 263        SelectNextDirectory,
 264        /// Selects the previous directory.
 265        SelectPrevDirectory,
 266    ]
 267);
 268
 269#[derive(Debug, Default)]
 270struct FoldedAncestors {
 271    current_ancestor_depth: usize,
 272    ancestors: Vec<ProjectEntryId>,
 273}
 274
 275impl FoldedAncestors {
 276    fn max_ancestor_depth(&self) -> usize {
 277        self.ancestors.len()
 278    }
 279}
 280
 281pub fn init_settings(cx: &mut App) {
 282    ProjectPanelSettings::register(cx);
 283}
 284
 285pub fn init(cx: &mut App) {
 286    init_settings(cx);
 287
 288    cx.observe_new(|workspace: &mut Workspace, _, _| {
 289        workspace.register_action(|workspace, _: &ToggleFocus, window, cx| {
 290            workspace.toggle_panel_focus::<ProjectPanel>(window, cx);
 291        });
 292
 293        workspace.register_action(|workspace, _: &ToggleHideGitIgnore, _, cx| {
 294            let fs = workspace.app_state().fs.clone();
 295            update_settings_file::<ProjectPanelSettings>(fs, cx, move |setting, _| {
 296                setting.hide_gitignore = Some(!setting.hide_gitignore.unwrap_or(false));
 297            })
 298        });
 299
 300        workspace.register_action(|workspace, action: &CollapseAllEntries, window, cx| {
 301            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 302                panel.update(cx, |panel, cx| {
 303                    panel.collapse_all_entries(action, window, cx);
 304                });
 305            }
 306        });
 307    })
 308    .detach();
 309}
 310
 311#[derive(Debug)]
 312pub enum Event {
 313    OpenedEntry {
 314        entry_id: ProjectEntryId,
 315        focus_opened_item: bool,
 316        allow_preview: bool,
 317    },
 318    SplitEntry {
 319        entry_id: ProjectEntryId,
 320    },
 321    Focus,
 322}
 323
 324#[derive(Serialize, Deserialize)]
 325struct SerializedProjectPanel {
 326    width: Option<Pixels>,
 327}
 328
 329struct DraggedProjectEntryView {
 330    selection: SelectedEntry,
 331    details: EntryDetails,
 332    click_offset: Point<Pixels>,
 333    selections: Arc<BTreeSet<SelectedEntry>>,
 334}
 335
 336struct ItemColors {
 337    default: Hsla,
 338    hover: Hsla,
 339    drag_over: Hsla,
 340    marked: Hsla,
 341    focused: Hsla,
 342}
 343
 344fn get_item_color(cx: &App) -> ItemColors {
 345    let colors = cx.theme().colors();
 346
 347    ItemColors {
 348        default: colors.panel_background,
 349        hover: colors.element_hover,
 350        marked: colors.element_selected,
 351        focused: colors.panel_focused_border,
 352        drag_over: colors.drop_target_background,
 353    }
 354}
 355
 356impl ProjectPanel {
 357    fn new(
 358        workspace: &mut Workspace,
 359        window: &mut Window,
 360        cx: &mut Context<Workspace>,
 361    ) -> Entity<Self> {
 362        let project = workspace.project().clone();
 363        let git_store = project.read(cx).git_store().clone();
 364        let project_panel = cx.new(|cx| {
 365            let focus_handle = cx.focus_handle();
 366            cx.on_focus(&focus_handle, window, Self::focus_in).detach();
 367            cx.on_focus_out(&focus_handle, window, |this, _, window, cx| {
 368                this.focus_out(window, cx);
 369                this.hide_scrollbar(window, cx);
 370            })
 371            .detach();
 372
 373            cx.subscribe(&git_store, |this, _, event, cx| match event {
 374                GitStoreEvent::RepositoryUpdated(_, _, _)
 375                | GitStoreEvent::RepositoryAdded(_)
 376                | GitStoreEvent::RepositoryRemoved(_) => {
 377                    this.update_visible_entries(None, cx);
 378                    cx.notify();
 379                }
 380                _ => {}
 381            })
 382            .detach();
 383
 384            cx.subscribe(&project, |this, project, event, cx| match event {
 385                project::Event::ActiveEntryChanged(Some(entry_id)) => {
 386                    if ProjectPanelSettings::get_global(cx).auto_reveal_entries {
 387                        this.reveal_entry(project.clone(), *entry_id, true, cx).ok();
 388                    }
 389                }
 390                project::Event::ActiveEntryChanged(None) => {
 391                    this.marked_entries.clear();
 392                }
 393                project::Event::RevealInProjectPanel(entry_id) => {
 394                    if let Some(()) = this
 395                        .reveal_entry(project.clone(), *entry_id, false, cx)
 396                        .log_err()
 397                    {
 398                        cx.emit(PanelEvent::Activate);
 399                    }
 400                }
 401                project::Event::ActivateProjectPanel => {
 402                    cx.emit(PanelEvent::Activate);
 403                }
 404                project::Event::DiskBasedDiagnosticsFinished { .. }
 405                | project::Event::DiagnosticsUpdated { .. } => {
 406                    if ProjectPanelSettings::get_global(cx).show_diagnostics != ShowDiagnostics::Off
 407                    {
 408                        this.update_diagnostics(cx);
 409                        cx.notify();
 410                    }
 411                }
 412                project::Event::WorktreeRemoved(id) => {
 413                    this.expanded_dir_ids.remove(id);
 414                    this.update_visible_entries(None, cx);
 415                    cx.notify();
 416                }
 417                project::Event::WorktreeUpdatedEntries(_, _)
 418                | project::Event::WorktreeAdded(_)
 419                | project::Event::WorktreeOrderChanged => {
 420                    this.update_visible_entries(None, cx);
 421                    cx.notify();
 422                }
 423                project::Event::ExpandedAllForEntry(worktree_id, entry_id) => {
 424                    if let Some((worktree, expanded_dir_ids)) = project
 425                        .read(cx)
 426                        .worktree_for_id(*worktree_id, cx)
 427                        .zip(this.expanded_dir_ids.get_mut(&worktree_id))
 428                    {
 429                        let worktree = worktree.read(cx);
 430
 431                        let Some(entry) = worktree.entry_for_id(*entry_id) else {
 432                            return;
 433                        };
 434                        let include_ignored_dirs = !entry.is_ignored;
 435
 436                        let mut dirs_to_expand = vec![*entry_id];
 437                        while let Some(current_id) = dirs_to_expand.pop() {
 438                            let Some(current_entry) = worktree.entry_for_id(current_id) else {
 439                                continue;
 440                            };
 441                            for child in worktree.child_entries(&current_entry.path) {
 442                                if !child.is_dir() || (include_ignored_dirs && child.is_ignored) {
 443                                    continue;
 444                                }
 445
 446                                dirs_to_expand.push(child.id);
 447
 448                                if let Err(ix) = expanded_dir_ids.binary_search(&child.id) {
 449                                    expanded_dir_ids.insert(ix, child.id);
 450                                }
 451                                this.unfolded_dir_ids.insert(child.id);
 452                            }
 453                        }
 454                        this.update_visible_entries(None, cx);
 455                        cx.notify();
 456                    }
 457                }
 458                _ => {}
 459            })
 460            .detach();
 461
 462            let trash_action = [TypeId::of::<Trash>()];
 463            let is_remote = project.read(cx).is_via_collab();
 464
 465            if is_remote {
 466                CommandPaletteFilter::update_global(cx, |filter, _cx| {
 467                    filter.hide_action_types(&trash_action);
 468                });
 469            }
 470
 471            let filename_editor = cx.new(|cx| Editor::single_line(window, cx));
 472
 473            cx.subscribe(
 474                &filename_editor,
 475                |project_panel, _, editor_event, cx| match editor_event {
 476                    EditorEvent::BufferEdited => {
 477                        project_panel.populate_validation_error(cx);
 478                        project_panel.autoscroll(cx);
 479                    }
 480                    EditorEvent::SelectionsChanged { .. } => {
 481                        project_panel.autoscroll(cx);
 482                    }
 483                    EditorEvent::Blurred => {
 484                        if project_panel
 485                            .edit_state
 486                            .as_ref()
 487                            .map_or(false, |state| state.processing_filename.is_none())
 488                        {
 489                            project_panel.edit_state = None;
 490                            project_panel.update_visible_entries(None, cx);
 491                            cx.notify();
 492                        }
 493                    }
 494                    _ => {}
 495                },
 496            )
 497            .detach();
 498
 499            cx.observe_global::<FileIcons>(|_, cx| {
 500                cx.notify();
 501            })
 502            .detach();
 503
 504            let mut project_panel_settings = *ProjectPanelSettings::get_global(cx);
 505            cx.observe_global::<SettingsStore>(move |this, cx| {
 506                let new_settings = *ProjectPanelSettings::get_global(cx);
 507                if project_panel_settings != new_settings {
 508                    if project_panel_settings.hide_gitignore != new_settings.hide_gitignore {
 509                        this.update_visible_entries(None, cx);
 510                    }
 511                    if project_panel_settings.hide_root != new_settings.hide_root {
 512                        this.update_visible_entries(None, cx);
 513                    }
 514                    project_panel_settings = new_settings;
 515                    this.update_diagnostics(cx);
 516                    cx.notify();
 517                }
 518            })
 519            .detach();
 520
 521            let scroll_handle = UniformListScrollHandle::new();
 522            let mut this = Self {
 523                project: project.clone(),
 524                hover_scroll_task: None,
 525                fs: workspace.app_state().fs.clone(),
 526                focus_handle,
 527                visible_entries: Default::default(),
 528                ancestors: Default::default(),
 529                folded_directory_drag_target: None,
 530                drag_target_entry: None,
 531                last_worktree_root_id: Default::default(),
 532                expanded_dir_ids: Default::default(),
 533                unfolded_dir_ids: Default::default(),
 534                selection: None,
 535                marked_entries: Default::default(),
 536                edit_state: None,
 537                context_menu: None,
 538                filename_editor,
 539                clipboard: None,
 540                _dragged_entry_destination: None,
 541                workspace: workspace.weak_handle(),
 542                width: None,
 543                pending_serialization: Task::ready(None),
 544                show_scrollbar: !Self::should_autohide_scrollbar(cx),
 545                hide_scrollbar_task: None,
 546                vertical_scrollbar_state: ScrollbarState::new(scroll_handle.clone())
 547                    .parent_entity(&cx.entity()),
 548                horizontal_scrollbar_state: ScrollbarState::new(scroll_handle.clone())
 549                    .parent_entity(&cx.entity()),
 550                max_width_item_index: None,
 551                diagnostics: Default::default(),
 552                scroll_handle,
 553                mouse_down: false,
 554                hover_expand_task: None,
 555                previous_drag_position: None,
 556            };
 557            this.update_visible_entries(None, cx);
 558
 559            this
 560        });
 561
 562        cx.subscribe_in(&project_panel, window, {
 563            let project_panel = project_panel.downgrade();
 564            move |workspace, _, event, window, cx| match event {
 565                &Event::OpenedEntry {
 566                    entry_id,
 567                    focus_opened_item,
 568                    allow_preview,
 569                } => {
 570                    if let Some(worktree) = project.read(cx).worktree_for_entry(entry_id, cx) {
 571                        if let Some(entry) = worktree.read(cx).entry_for_id(entry_id) {
 572                            let file_path = entry.path.clone();
 573                            let worktree_id = worktree.read(cx).id();
 574                            let entry_id = entry.id;
 575                            let is_via_ssh = project.read(cx).is_via_ssh();
 576
 577                            workspace
 578                                .open_path_preview(
 579                                    ProjectPath {
 580                                        worktree_id,
 581                                        path: file_path.clone(),
 582                                    },
 583                                    None,
 584                                    focus_opened_item,
 585                                    allow_preview,
 586                                    true,
 587                                    window, cx,
 588                                )
 589                                .detach_and_prompt_err("Failed to open file", window, cx, move |e, _, _| {
 590                                    match e.error_code() {
 591                                        ErrorCode::Disconnected => if is_via_ssh {
 592                                            Some("Disconnected from SSH host".to_string())
 593                                        } else {
 594                                            Some("Disconnected from remote project".to_string())
 595                                        },
 596                                        ErrorCode::UnsharedItem => Some(format!(
 597                                            "{} is not shared by the host. This could be because it has been marked as `private`",
 598                                            file_path.display()
 599                                        )),
 600                                        // See note in worktree.rs where this error originates. Returning Some in this case prevents
 601                                        // the error popup from saying "Try Again", which is a red herring in this case
 602                                        ErrorCode::Internal if e.to_string().contains("File is too large to load") => Some(e.to_string()),
 603                                        _ => None,
 604                                    }
 605                                });
 606
 607                            if let Some(project_panel) = project_panel.upgrade() {
 608                                // Always select and mark the entry, regardless of whether it is opened or not.
 609                                project_panel.update(cx, |project_panel, _| {
 610                                    let entry = SelectedEntry { worktree_id, entry_id };
 611                                    project_panel.marked_entries.clear();
 612                                    project_panel.marked_entries.insert(entry);
 613                                    project_panel.selection = Some(entry);
 614                                });
 615                                if !focus_opened_item {
 616                                    let focus_handle = project_panel.read(cx).focus_handle.clone();
 617                                    window.focus(&focus_handle);
 618                                }
 619                            }
 620                        }
 621                    }
 622                }
 623                &Event::SplitEntry { entry_id } => {
 624                    if let Some(worktree) = project.read(cx).worktree_for_entry(entry_id, cx) {
 625                        if let Some(entry) = worktree.read(cx).entry_for_id(entry_id) {
 626                            workspace
 627                                .split_path(
 628                                    ProjectPath {
 629                                        worktree_id: worktree.read(cx).id(),
 630                                        path: entry.path.clone(),
 631                                    },
 632                                    window, cx,
 633                                )
 634                                .detach_and_log_err(cx);
 635                        }
 636                    }
 637                }
 638
 639                _ => {}
 640            }
 641        })
 642        .detach();
 643
 644        project_panel
 645    }
 646
 647    pub async fn load(
 648        workspace: WeakEntity<Workspace>,
 649        mut cx: AsyncWindowContext,
 650    ) -> Result<Entity<Self>> {
 651        let serialized_panel = match workspace
 652            .read_with(&cx, |workspace, _| {
 653                ProjectPanel::serialization_key(workspace)
 654            })
 655            .ok()
 656            .flatten()
 657        {
 658            Some(serialization_key) => cx
 659                .background_spawn(async move { KEY_VALUE_STORE.read_kvp(&serialization_key) })
 660                .await
 661                .context("loading project panel")
 662                .log_err()
 663                .flatten()
 664                .map(|panel| serde_json::from_str::<SerializedProjectPanel>(&panel))
 665                .transpose()
 666                .log_err()
 667                .flatten(),
 668            None => None,
 669        };
 670
 671        workspace.update_in(&mut cx, |workspace, window, cx| {
 672            let panel = ProjectPanel::new(workspace, window, cx);
 673            if let Some(serialized_panel) = serialized_panel {
 674                panel.update(cx, |panel, cx| {
 675                    panel.width = serialized_panel.width.map(|px| px.round());
 676                    cx.notify();
 677                });
 678            }
 679            panel
 680        })
 681    }
 682
 683    fn update_diagnostics(&mut self, cx: &mut Context<Self>) {
 684        let mut diagnostics: HashMap<(WorktreeId, PathBuf), DiagnosticSeverity> =
 685            Default::default();
 686        let show_diagnostics_setting = ProjectPanelSettings::get_global(cx).show_diagnostics;
 687
 688        if show_diagnostics_setting != ShowDiagnostics::Off {
 689            self.project
 690                .read(cx)
 691                .diagnostic_summaries(false, cx)
 692                .filter_map(|(path, _, diagnostic_summary)| {
 693                    if diagnostic_summary.error_count > 0 {
 694                        Some((path, DiagnosticSeverity::ERROR))
 695                    } else if show_diagnostics_setting == ShowDiagnostics::All
 696                        && diagnostic_summary.warning_count > 0
 697                    {
 698                        Some((path, DiagnosticSeverity::WARNING))
 699                    } else {
 700                        None
 701                    }
 702                })
 703                .for_each(|(project_path, diagnostic_severity)| {
 704                    let mut path_buffer = PathBuf::new();
 705                    Self::update_strongest_diagnostic_severity(
 706                        &mut diagnostics,
 707                        &project_path,
 708                        path_buffer.clone(),
 709                        diagnostic_severity,
 710                    );
 711
 712                    for component in project_path.path.components() {
 713                        path_buffer.push(component);
 714                        Self::update_strongest_diagnostic_severity(
 715                            &mut diagnostics,
 716                            &project_path,
 717                            path_buffer.clone(),
 718                            diagnostic_severity,
 719                        );
 720                    }
 721                });
 722        }
 723        self.diagnostics = diagnostics;
 724    }
 725
 726    fn update_strongest_diagnostic_severity(
 727        diagnostics: &mut HashMap<(WorktreeId, PathBuf), DiagnosticSeverity>,
 728        project_path: &ProjectPath,
 729        path_buffer: PathBuf,
 730        diagnostic_severity: DiagnosticSeverity,
 731    ) {
 732        diagnostics
 733            .entry((project_path.worktree_id, path_buffer.clone()))
 734            .and_modify(|strongest_diagnostic_severity| {
 735                *strongest_diagnostic_severity =
 736                    cmp::min(*strongest_diagnostic_severity, diagnostic_severity);
 737            })
 738            .or_insert(diagnostic_severity);
 739    }
 740
 741    fn serialization_key(workspace: &Workspace) -> Option<String> {
 742        workspace
 743            .database_id()
 744            .map(|id| i64::from(id).to_string())
 745            .or(workspace.session_id())
 746            .map(|id| format!("{}-{:?}", PROJECT_PANEL_KEY, id))
 747    }
 748
 749    fn serialize(&mut self, cx: &mut Context<Self>) {
 750        let Some(serialization_key) = self
 751            .workspace
 752            .read_with(cx, |workspace, _| {
 753                ProjectPanel::serialization_key(workspace)
 754            })
 755            .ok()
 756            .flatten()
 757        else {
 758            return;
 759        };
 760        let width = self.width;
 761        self.pending_serialization = cx.background_spawn(
 762            async move {
 763                KEY_VALUE_STORE
 764                    .write_kvp(
 765                        serialization_key,
 766                        serde_json::to_string(&SerializedProjectPanel { width })?,
 767                    )
 768                    .await?;
 769                anyhow::Ok(())
 770            }
 771            .log_err(),
 772        );
 773    }
 774
 775    fn focus_in(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 776        if !self.focus_handle.contains_focused(window, cx) {
 777            cx.emit(Event::Focus);
 778        }
 779    }
 780
 781    fn focus_out(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 782        if !self.focus_handle.is_focused(window) {
 783            self.confirm(&Confirm, window, cx);
 784        }
 785    }
 786
 787    fn deploy_context_menu(
 788        &mut self,
 789        position: Point<Pixels>,
 790        entry_id: ProjectEntryId,
 791        window: &mut Window,
 792        cx: &mut Context<Self>,
 793    ) {
 794        let project = self.project.read(cx);
 795
 796        let worktree_id = if let Some(id) = project.worktree_id_for_entry(entry_id, cx) {
 797            id
 798        } else {
 799            return;
 800        };
 801
 802        self.selection = Some(SelectedEntry {
 803            worktree_id,
 804            entry_id,
 805        });
 806
 807        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
 808            let auto_fold_dirs = ProjectPanelSettings::get_global(cx).auto_fold_dirs;
 809            let worktree = worktree.read(cx);
 810            let is_root = Some(entry) == worktree.root_entry();
 811            let is_dir = entry.is_dir();
 812            let is_foldable = auto_fold_dirs && self.is_foldable(entry, worktree);
 813            let is_unfoldable = auto_fold_dirs && self.is_unfoldable(entry, worktree);
 814            let is_read_only = project.is_read_only(cx);
 815            let is_remote = project.is_via_collab();
 816            let is_local = project.is_local();
 817
 818            let settings = ProjectPanelSettings::get_global(cx);
 819            let visible_worktrees_count = project.visible_worktrees(cx).count();
 820            let should_hide_rename = is_root
 821                && (cfg!(target_os = "windows")
 822                    || (settings.hide_root && visible_worktrees_count == 1));
 823
 824            let context_menu = ContextMenu::build(window, cx, |menu, _, _| {
 825                menu.context(self.focus_handle.clone()).map(|menu| {
 826                    if is_read_only {
 827                        menu.when(is_dir, |menu| {
 828                            menu.action("Search Inside", Box::new(NewSearchInDirectory))
 829                        })
 830                    } else {
 831                        menu.action("New File", Box::new(NewFile))
 832                            .action("New Folder", Box::new(NewDirectory))
 833                            .separator()
 834                            .when(is_local && cfg!(target_os = "macos"), |menu| {
 835                                menu.action("Reveal in Finder", Box::new(RevealInFileManager))
 836                            })
 837                            .when(is_local && cfg!(not(target_os = "macos")), |menu| {
 838                                menu.action("Reveal in File Manager", Box::new(RevealInFileManager))
 839                            })
 840                            .when(is_local, |menu| {
 841                                menu.action("Open in Default App", Box::new(OpenWithSystem))
 842                            })
 843                            .action("Open in Terminal", Box::new(OpenInTerminal))
 844                            .when(is_dir, |menu| {
 845                                menu.separator()
 846                                    .action("Find in Folder…", Box::new(NewSearchInDirectory))
 847                            })
 848                            .when(is_unfoldable, |menu| {
 849                                menu.action("Unfold Directory", Box::new(UnfoldDirectory))
 850                            })
 851                            .when(is_foldable, |menu| {
 852                                menu.action("Fold Directory", Box::new(FoldDirectory))
 853                            })
 854                            .separator()
 855                            .action("Cut", Box::new(Cut))
 856                            .action("Copy", Box::new(Copy))
 857                            .action("Duplicate", Box::new(Duplicate))
 858                            // TODO: Paste should always be visible, cbut disabled when clipboard is empty
 859                            .action_disabled_when(
 860                                self.clipboard.as_ref().is_none(),
 861                                "Paste",
 862                                Box::new(Paste),
 863                            )
 864                            .separator()
 865                            .action("Copy Path", Box::new(zed_actions::workspace::CopyPath))
 866                            .action(
 867                                "Copy Relative Path",
 868                                Box::new(zed_actions::workspace::CopyRelativePath),
 869                            )
 870                            .separator()
 871                            .when(!should_hide_rename, |menu| {
 872                                menu.action("Rename", Box::new(Rename))
 873                            })
 874                            .when(!is_root & !is_remote, |menu| {
 875                                menu.action("Trash", Box::new(Trash { skip_prompt: false }))
 876                            })
 877                            .when(!is_root, |menu| {
 878                                menu.action("Delete", Box::new(Delete { skip_prompt: false }))
 879                            })
 880                            .when(!is_remote & is_root, |menu| {
 881                                menu.separator()
 882                                    .action(
 883                                        "Add Folder to Project…",
 884                                        Box::new(workspace::AddFolderToProject),
 885                                    )
 886                                    .action("Remove from Project", Box::new(RemoveFromProject))
 887                            })
 888                            .when(is_root, |menu| {
 889                                menu.separator()
 890                                    .action("Collapse All", Box::new(CollapseAllEntries))
 891                            })
 892                    }
 893                })
 894            });
 895
 896            window.focus(&context_menu.focus_handle(cx));
 897            let subscription = cx.subscribe(&context_menu, |this, _, _: &DismissEvent, cx| {
 898                this.context_menu.take();
 899                cx.notify();
 900            });
 901            self.context_menu = Some((context_menu, position, subscription));
 902        }
 903
 904        cx.notify();
 905    }
 906
 907    fn is_unfoldable(&self, entry: &Entry, worktree: &Worktree) -> bool {
 908        if !entry.is_dir() || self.unfolded_dir_ids.contains(&entry.id) {
 909            return false;
 910        }
 911
 912        if let Some(parent_path) = entry.path.parent() {
 913            let snapshot = worktree.snapshot();
 914            let mut child_entries = snapshot.child_entries(parent_path);
 915            if let Some(child) = child_entries.next() {
 916                if child_entries.next().is_none() {
 917                    return child.kind.is_dir();
 918                }
 919            }
 920        };
 921        false
 922    }
 923
 924    fn is_foldable(&self, entry: &Entry, worktree: &Worktree) -> bool {
 925        if entry.is_dir() {
 926            let snapshot = worktree.snapshot();
 927
 928            let mut child_entries = snapshot.child_entries(&entry.path);
 929            if let Some(child) = child_entries.next() {
 930                if child_entries.next().is_none() {
 931                    return child.kind.is_dir();
 932                }
 933            }
 934        }
 935        false
 936    }
 937
 938    fn expand_selected_entry(
 939        &mut self,
 940        _: &ExpandSelectedEntry,
 941        window: &mut Window,
 942        cx: &mut Context<Self>,
 943    ) {
 944        if let Some((worktree, entry)) = self.selected_entry(cx) {
 945            if let Some(folded_ancestors) = self.ancestors.get_mut(&entry.id) {
 946                if folded_ancestors.current_ancestor_depth > 0 {
 947                    folded_ancestors.current_ancestor_depth -= 1;
 948                    cx.notify();
 949                    return;
 950                }
 951            }
 952            if entry.is_dir() {
 953                let worktree_id = worktree.id();
 954                let entry_id = entry.id;
 955                let expanded_dir_ids =
 956                    if let Some(expanded_dir_ids) = self.expanded_dir_ids.get_mut(&worktree_id) {
 957                        expanded_dir_ids
 958                    } else {
 959                        return;
 960                    };
 961
 962                match expanded_dir_ids.binary_search(&entry_id) {
 963                    Ok(_) => self.select_next(&SelectNext, window, cx),
 964                    Err(ix) => {
 965                        self.project.update(cx, |project, cx| {
 966                            project.expand_entry(worktree_id, entry_id, cx);
 967                        });
 968
 969                        expanded_dir_ids.insert(ix, entry_id);
 970                        self.update_visible_entries(None, cx);
 971                        cx.notify();
 972                    }
 973                }
 974            }
 975        }
 976    }
 977
 978    fn collapse_selected_entry(
 979        &mut self,
 980        _: &CollapseSelectedEntry,
 981        _: &mut Window,
 982        cx: &mut Context<Self>,
 983    ) {
 984        let Some((worktree, entry)) = self.selected_entry_handle(cx) else {
 985            return;
 986        };
 987        self.collapse_entry(entry.clone(), worktree, cx)
 988    }
 989
 990    fn collapse_entry(&mut self, entry: Entry, worktree: Entity<Worktree>, cx: &mut Context<Self>) {
 991        let worktree = worktree.read(cx);
 992        if let Some(folded_ancestors) = self.ancestors.get_mut(&entry.id) {
 993            if folded_ancestors.current_ancestor_depth + 1 < folded_ancestors.max_ancestor_depth() {
 994                folded_ancestors.current_ancestor_depth += 1;
 995                cx.notify();
 996                return;
 997            }
 998        }
 999        let worktree_id = worktree.id();
1000        let expanded_dir_ids =
1001            if let Some(expanded_dir_ids) = self.expanded_dir_ids.get_mut(&worktree_id) {
1002                expanded_dir_ids
1003            } else {
1004                return;
1005            };
1006
1007        let mut entry = &entry;
1008        loop {
1009            let entry_id = entry.id;
1010            match expanded_dir_ids.binary_search(&entry_id) {
1011                Ok(ix) => {
1012                    expanded_dir_ids.remove(ix);
1013                    self.update_visible_entries(Some((worktree_id, entry_id)), cx);
1014                    cx.notify();
1015                    break;
1016                }
1017                Err(_) => {
1018                    if let Some(parent_entry) =
1019                        entry.path.parent().and_then(|p| worktree.entry_for_path(p))
1020                    {
1021                        entry = parent_entry;
1022                    } else {
1023                        break;
1024                    }
1025                }
1026            }
1027        }
1028    }
1029
1030    pub fn collapse_all_entries(
1031        &mut self,
1032        _: &CollapseAllEntries,
1033        _: &mut Window,
1034        cx: &mut Context<Self>,
1035    ) {
1036        // By keeping entries for fully collapsed worktrees, we avoid expanding them within update_visible_entries
1037        // (which is it's default behavior when there's no entry for a worktree in expanded_dir_ids).
1038        self.expanded_dir_ids
1039            .retain(|_, expanded_entries| expanded_entries.is_empty());
1040        self.update_visible_entries(None, cx);
1041        cx.notify();
1042    }
1043
1044    fn toggle_expanded(
1045        &mut self,
1046        entry_id: ProjectEntryId,
1047        window: &mut Window,
1048        cx: &mut Context<Self>,
1049    ) {
1050        if let Some(worktree_id) = self.project.read(cx).worktree_id_for_entry(entry_id, cx) {
1051            if let Some(expanded_dir_ids) = self.expanded_dir_ids.get_mut(&worktree_id) {
1052                self.project.update(cx, |project, cx| {
1053                    match expanded_dir_ids.binary_search(&entry_id) {
1054                        Ok(ix) => {
1055                            expanded_dir_ids.remove(ix);
1056                        }
1057                        Err(ix) => {
1058                            project.expand_entry(worktree_id, entry_id, cx);
1059                            expanded_dir_ids.insert(ix, entry_id);
1060                        }
1061                    }
1062                });
1063                self.update_visible_entries(Some((worktree_id, entry_id)), cx);
1064                window.focus(&self.focus_handle);
1065                cx.notify();
1066            }
1067        }
1068    }
1069
1070    fn toggle_expand_all(
1071        &mut self,
1072        entry_id: ProjectEntryId,
1073        window: &mut Window,
1074        cx: &mut Context<Self>,
1075    ) {
1076        if let Some(worktree_id) = self.project.read(cx).worktree_id_for_entry(entry_id, cx) {
1077            if let Some(expanded_dir_ids) = self.expanded_dir_ids.get_mut(&worktree_id) {
1078                match expanded_dir_ids.binary_search(&entry_id) {
1079                    Ok(_ix) => {
1080                        self.collapse_all_for_entry(worktree_id, entry_id, cx);
1081                    }
1082                    Err(_ix) => {
1083                        self.expand_all_for_entry(worktree_id, entry_id, cx);
1084                    }
1085                }
1086                self.update_visible_entries(Some((worktree_id, entry_id)), cx);
1087                window.focus(&self.focus_handle);
1088                cx.notify();
1089            }
1090        }
1091    }
1092
1093    fn expand_all_for_entry(
1094        &mut self,
1095        worktree_id: WorktreeId,
1096        entry_id: ProjectEntryId,
1097        cx: &mut Context<Self>,
1098    ) {
1099        self.project.update(cx, |project, cx| {
1100            if let Some((worktree, expanded_dir_ids)) = project
1101                .worktree_for_id(worktree_id, cx)
1102                .zip(self.expanded_dir_ids.get_mut(&worktree_id))
1103            {
1104                if let Some(task) = project.expand_all_for_entry(worktree_id, entry_id, cx) {
1105                    task.detach();
1106                }
1107
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 collapse_all_for_entry(
1130        &mut self,
1131        worktree_id: WorktreeId,
1132        entry_id: ProjectEntryId,
1133        cx: &mut Context<Self>,
1134    ) {
1135        self.project.update(cx, |project, cx| {
1136            if let Some((worktree, expanded_dir_ids)) = project
1137                .worktree_for_id(worktree_id, cx)
1138                .zip(self.expanded_dir_ids.get_mut(&worktree_id))
1139            {
1140                let worktree = worktree.read(cx);
1141                let mut dirs_to_collapse = vec![entry_id];
1142                let auto_fold_enabled = ProjectPanelSettings::get_global(cx).auto_fold_dirs;
1143                while let Some(current_id) = dirs_to_collapse.pop() {
1144                    let Some(current_entry) = worktree.entry_for_id(current_id) else {
1145                        continue;
1146                    };
1147                    if let Ok(ix) = expanded_dir_ids.binary_search(&current_id) {
1148                        expanded_dir_ids.remove(ix);
1149                    }
1150                    if auto_fold_enabled {
1151                        self.unfolded_dir_ids.remove(&current_id);
1152                    }
1153                    for child in worktree.child_entries(&current_entry.path) {
1154                        if child.is_dir() {
1155                            dirs_to_collapse.push(child.id);
1156                        }
1157                    }
1158                }
1159            }
1160        });
1161    }
1162
1163    fn select_previous(&mut self, _: &SelectPrevious, window: &mut Window, cx: &mut Context<Self>) {
1164        if let Some(edit_state) = &self.edit_state {
1165            if edit_state.processing_filename.is_none() {
1166                self.filename_editor.update(cx, |editor, cx| {
1167                    editor.move_to_beginning_of_line(
1168                        &editor::actions::MoveToBeginningOfLine {
1169                            stop_at_soft_wraps: false,
1170                            stop_at_indent: false,
1171                        },
1172                        window,
1173                        cx,
1174                    );
1175                });
1176                return;
1177            }
1178        }
1179        if let Some(selection) = self.selection {
1180            let (mut worktree_ix, mut entry_ix, _) =
1181                self.index_for_selection(selection).unwrap_or_default();
1182            if entry_ix > 0 {
1183                entry_ix -= 1;
1184            } else if worktree_ix > 0 {
1185                worktree_ix -= 1;
1186                entry_ix = self.visible_entries[worktree_ix].1.len() - 1;
1187            } else {
1188                return;
1189            }
1190
1191            let (worktree_id, worktree_entries, _) = &self.visible_entries[worktree_ix];
1192            let selection = SelectedEntry {
1193                worktree_id: *worktree_id,
1194                entry_id: worktree_entries[entry_ix].id,
1195            };
1196            self.selection = Some(selection);
1197            if window.modifiers().shift {
1198                self.marked_entries.insert(selection);
1199            }
1200            self.autoscroll(cx);
1201            cx.notify();
1202        } else {
1203            self.select_first(&SelectFirst {}, window, cx);
1204        }
1205    }
1206
1207    fn confirm(&mut self, _: &Confirm, window: &mut Window, cx: &mut Context<Self>) {
1208        if let Some(task) = self.confirm_edit(window, cx) {
1209            task.detach_and_notify_err(window, cx);
1210        }
1211    }
1212
1213    fn open(&mut self, _: &Open, window: &mut Window, cx: &mut Context<Self>) {
1214        let preview_tabs_enabled = PreviewTabsSettings::get_global(cx).enabled;
1215        self.open_internal(true, !preview_tabs_enabled, window, cx);
1216    }
1217
1218    fn open_permanent(&mut self, _: &OpenPermanent, window: &mut Window, cx: &mut Context<Self>) {
1219        self.open_internal(false, true, window, cx);
1220    }
1221
1222    fn open_internal(
1223        &mut self,
1224        allow_preview: bool,
1225        focus_opened_item: bool,
1226        window: &mut Window,
1227        cx: &mut Context<Self>,
1228    ) {
1229        if let Some((_, entry)) = self.selected_entry(cx) {
1230            if entry.is_file() {
1231                self.open_entry(entry.id, focus_opened_item, allow_preview, cx);
1232                cx.notify();
1233            } else {
1234                self.toggle_expanded(entry.id, window, cx);
1235            }
1236        }
1237    }
1238
1239    fn populate_validation_error(&mut self, cx: &mut Context<Self>) {
1240        let edit_state = match self.edit_state.as_mut() {
1241            Some(state) => state,
1242            None => return,
1243        };
1244        let filename = self.filename_editor.read(cx).text(cx);
1245        if !filename.is_empty() {
1246            if let Some(worktree) = self
1247                .project
1248                .read(cx)
1249                .worktree_for_id(edit_state.worktree_id, cx)
1250            {
1251                if let Some(entry) = worktree.read(cx).entry_for_id(edit_state.entry_id) {
1252                    let mut already_exists = false;
1253                    if edit_state.is_new_entry() {
1254                        let new_path = entry.path.join(filename.trim_start_matches('/'));
1255                        if worktree
1256                            .read(cx)
1257                            .entry_for_path(new_path.as_path())
1258                            .is_some()
1259                        {
1260                            already_exists = true;
1261                        }
1262                    } else {
1263                        let new_path = if let Some(parent) = entry.path.clone().parent() {
1264                            parent.join(&filename)
1265                        } else {
1266                            filename.clone().into()
1267                        };
1268                        if let Some(existing) = worktree.read(cx).entry_for_path(new_path.as_path())
1269                        {
1270                            if existing.id != entry.id {
1271                                already_exists = true;
1272                            }
1273                        }
1274                    };
1275                    if already_exists {
1276                        edit_state.validation_state = ValidationState::Error(format!(
1277                            "File or directory '{}' already exists at location. Please choose a different name.",
1278                            filename
1279                        ));
1280                        cx.notify();
1281                        return;
1282                    }
1283                }
1284            }
1285            let trimmed_filename = filename.trim();
1286            if trimmed_filename.is_empty() {
1287                edit_state.validation_state =
1288                    ValidationState::Error("File or directory name cannot be empty.".to_string());
1289                cx.notify();
1290                return;
1291            }
1292            if trimmed_filename != filename {
1293                edit_state.validation_state = ValidationState::Warning(
1294                    "File or directory name contains leading or trailing whitespace.".to_string(),
1295                );
1296                cx.notify();
1297                return;
1298            }
1299        }
1300        edit_state.validation_state = ValidationState::None;
1301        cx.notify();
1302    }
1303
1304    fn confirm_edit(
1305        &mut self,
1306        window: &mut Window,
1307        cx: &mut Context<Self>,
1308    ) -> Option<Task<Result<()>>> {
1309        let edit_state = self.edit_state.as_mut()?;
1310        let worktree_id = edit_state.worktree_id;
1311        let is_new_entry = edit_state.is_new_entry();
1312        let filename = self.filename_editor.read(cx).text(cx);
1313        if filename.trim().is_empty() {
1314            return None;
1315        }
1316        #[cfg(not(target_os = "windows"))]
1317        let filename_indicates_dir = filename.ends_with("/");
1318        // On Windows, path separator could be either `/` or `\`.
1319        #[cfg(target_os = "windows")]
1320        let filename_indicates_dir = filename.ends_with("/") || filename.ends_with("\\");
1321        edit_state.is_dir =
1322            edit_state.is_dir || (edit_state.is_new_entry() && filename_indicates_dir);
1323        let is_dir = edit_state.is_dir;
1324        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
1325        let entry = worktree.read(cx).entry_for_id(edit_state.entry_id)?.clone();
1326
1327        let edit_task;
1328        let edited_entry_id;
1329        if is_new_entry {
1330            self.selection = Some(SelectedEntry {
1331                worktree_id,
1332                entry_id: NEW_ENTRY_ID,
1333            });
1334            let new_path = entry.path.join(filename.trim_start_matches('/'));
1335            if worktree
1336                .read(cx)
1337                .entry_for_path(new_path.as_path())
1338                .is_some()
1339            {
1340                return None;
1341            }
1342
1343            edited_entry_id = NEW_ENTRY_ID;
1344            edit_task = self.project.update(cx, |project, cx| {
1345                project.create_entry((worktree_id, &new_path), is_dir, cx)
1346            });
1347        } else {
1348            let new_path = if let Some(parent) = entry.path.clone().parent() {
1349                parent.join(&filename)
1350            } else {
1351                filename.clone().into()
1352            };
1353            if let Some(existing) = worktree.read(cx).entry_for_path(new_path.as_path()) {
1354                if existing.id == entry.id {
1355                    window.focus(&self.focus_handle);
1356                }
1357                return None;
1358            }
1359            edited_entry_id = entry.id;
1360            edit_task = self.project.update(cx, |project, cx| {
1361                project.rename_entry(entry.id, new_path.as_path(), cx)
1362            });
1363        };
1364
1365        window.focus(&self.focus_handle);
1366        edit_state.processing_filename = Some(filename);
1367        cx.notify();
1368
1369        Some(cx.spawn_in(window, async move |project_panel, cx| {
1370            let new_entry = edit_task.await;
1371            project_panel.update(cx, |project_panel, cx| {
1372                project_panel.edit_state = None;
1373                cx.notify();
1374            })?;
1375
1376            match new_entry {
1377                Err(e) => {
1378                    project_panel.update( cx, |project_panel, cx| {
1379                        project_panel.marked_entries.clear();
1380                        project_panel.update_visible_entries(None,  cx);
1381                    }).ok();
1382                    Err(e)?;
1383                }
1384                Ok(CreatedEntry::Included(new_entry)) => {
1385                    project_panel.update( cx, |project_panel, cx| {
1386                        if let Some(selection) = &mut project_panel.selection {
1387                            if selection.entry_id == edited_entry_id {
1388                                selection.worktree_id = worktree_id;
1389                                selection.entry_id = new_entry.id;
1390                                project_panel.marked_entries.clear();
1391                                project_panel.expand_to_selection(cx);
1392                            }
1393                        }
1394                        project_panel.update_visible_entries(None, cx);
1395                        if is_new_entry && !is_dir {
1396                            project_panel.open_entry(new_entry.id, true, false, cx);
1397                        }
1398                        cx.notify();
1399                    })?;
1400                }
1401                Ok(CreatedEntry::Excluded { abs_path }) => {
1402                    if let Some(open_task) = project_panel
1403                        .update_in( cx, |project_panel, window, cx| {
1404                            project_panel.marked_entries.clear();
1405                            project_panel.update_visible_entries(None,  cx);
1406
1407                            if is_dir {
1408                                project_panel.project.update(cx, |_, cx| {
1409                                    cx.emit(project::Event::Toast {
1410                                        notification_id: "excluded-directory".into(),
1411                                        message: format!("Created an excluded directory at {abs_path:?}.\nAlter `file_scan_exclusions` in the settings to show it in the panel")
1412                                    })
1413                                });
1414                                None
1415                            } else {
1416                                project_panel
1417                                    .workspace
1418                                    .update(cx, |workspace, cx| {
1419                                        workspace.open_abs_path(abs_path, OpenOptions { visible: Some(OpenVisible::All), ..Default::default() }, window, cx)
1420                                    })
1421                                    .ok()
1422                            }
1423                        })
1424                        .ok()
1425                        .flatten()
1426                    {
1427                        let _ = open_task.await?;
1428                    }
1429                }
1430            }
1431            Ok(())
1432        }))
1433    }
1434
1435    fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
1436        if cx.stop_active_drag(window) {
1437            self.drag_target_entry.take();
1438            self.hover_expand_task.take();
1439            return;
1440        }
1441
1442        let previous_edit_state = self.edit_state.take();
1443        self.update_visible_entries(None, cx);
1444        self.marked_entries.clear();
1445
1446        if let Some(previously_focused) =
1447            previous_edit_state.and_then(|edit_state| edit_state.previously_focused)
1448        {
1449            self.selection = Some(previously_focused);
1450            self.autoscroll(cx);
1451        }
1452
1453        window.focus(&self.focus_handle);
1454        cx.notify();
1455    }
1456
1457    fn open_entry(
1458        &mut self,
1459        entry_id: ProjectEntryId,
1460        focus_opened_item: bool,
1461        allow_preview: bool,
1462
1463        cx: &mut Context<Self>,
1464    ) {
1465        cx.emit(Event::OpenedEntry {
1466            entry_id,
1467            focus_opened_item,
1468            allow_preview,
1469        });
1470    }
1471
1472    fn split_entry(&mut self, entry_id: ProjectEntryId, cx: &mut Context<Self>) {
1473        cx.emit(Event::SplitEntry { entry_id });
1474    }
1475
1476    fn new_file(&mut self, _: &NewFile, window: &mut Window, cx: &mut Context<Self>) {
1477        self.add_entry(false, window, cx)
1478    }
1479
1480    fn new_directory(&mut self, _: &NewDirectory, window: &mut Window, cx: &mut Context<Self>) {
1481        self.add_entry(true, window, cx)
1482    }
1483
1484    fn add_entry(&mut self, is_dir: bool, window: &mut Window, cx: &mut Context<Self>) {
1485        let Some((worktree_id, entry_id)) = self
1486            .selection
1487            .map(|entry| (entry.worktree_id, entry.entry_id))
1488            .or_else(|| {
1489                let entry_id = self.last_worktree_root_id?;
1490                let worktree_id = self
1491                    .project
1492                    .read(cx)
1493                    .worktree_for_entry(entry_id, cx)?
1494                    .read(cx)
1495                    .id();
1496
1497                self.selection = Some(SelectedEntry {
1498                    worktree_id,
1499                    entry_id,
1500                });
1501
1502                Some((worktree_id, entry_id))
1503            })
1504        else {
1505            return;
1506        };
1507
1508        let directory_id;
1509        let new_entry_id = self.resolve_entry(entry_id);
1510        if let Some((worktree, expanded_dir_ids)) = self
1511            .project
1512            .read(cx)
1513            .worktree_for_id(worktree_id, cx)
1514            .zip(self.expanded_dir_ids.get_mut(&worktree_id))
1515        {
1516            let worktree = worktree.read(cx);
1517            if let Some(mut entry) = worktree.entry_for_id(new_entry_id) {
1518                loop {
1519                    if entry.is_dir() {
1520                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
1521                            expanded_dir_ids.insert(ix, entry.id);
1522                        }
1523                        directory_id = entry.id;
1524                        break;
1525                    } else {
1526                        if let Some(parent_path) = entry.path.parent() {
1527                            if let Some(parent_entry) = worktree.entry_for_path(parent_path) {
1528                                entry = parent_entry;
1529                                continue;
1530                            }
1531                        }
1532                        return;
1533                    }
1534                }
1535            } else {
1536                return;
1537            };
1538        } else {
1539            return;
1540        };
1541
1542        self.marked_entries.clear();
1543        self.edit_state = Some(EditState {
1544            worktree_id,
1545            entry_id: directory_id,
1546            leaf_entry_id: None,
1547            is_dir,
1548            processing_filename: None,
1549            previously_focused: self.selection,
1550            depth: 0,
1551            validation_state: ValidationState::None,
1552        });
1553        self.filename_editor.update(cx, |editor, cx| {
1554            editor.clear(window, cx);
1555            window.focus(&editor.focus_handle(cx));
1556        });
1557        self.update_visible_entries(Some((worktree_id, NEW_ENTRY_ID)), cx);
1558        self.autoscroll(cx);
1559        cx.notify();
1560    }
1561
1562    fn unflatten_entry_id(&self, leaf_entry_id: ProjectEntryId) -> ProjectEntryId {
1563        if let Some(ancestors) = self.ancestors.get(&leaf_entry_id) {
1564            ancestors
1565                .ancestors
1566                .get(ancestors.current_ancestor_depth)
1567                .copied()
1568                .unwrap_or(leaf_entry_id)
1569        } else {
1570            leaf_entry_id
1571        }
1572    }
1573
1574    fn rename_impl(
1575        &mut self,
1576        selection: Option<Range<usize>>,
1577        window: &mut Window,
1578        cx: &mut Context<Self>,
1579    ) {
1580        if let Some(SelectedEntry {
1581            worktree_id,
1582            entry_id,
1583        }) = self.selection
1584        {
1585            if let Some(worktree) = self.project.read(cx).worktree_for_id(worktree_id, cx) {
1586                let sub_entry_id = self.unflatten_entry_id(entry_id);
1587                if let Some(entry) = worktree.read(cx).entry_for_id(sub_entry_id) {
1588                    #[cfg(target_os = "windows")]
1589                    if Some(entry) == worktree.read(cx).root_entry() {
1590                        return;
1591                    }
1592
1593                    if Some(entry) == worktree.read(cx).root_entry() {
1594                        let settings = ProjectPanelSettings::get_global(cx);
1595                        let visible_worktrees_count =
1596                            self.project.read(cx).visible_worktrees(cx).count();
1597                        if settings.hide_root && visible_worktrees_count == 1 {
1598                            return;
1599                        }
1600                    }
1601
1602                    self.edit_state = Some(EditState {
1603                        worktree_id,
1604                        entry_id: sub_entry_id,
1605                        leaf_entry_id: Some(entry_id),
1606                        is_dir: entry.is_dir(),
1607                        processing_filename: None,
1608                        previously_focused: None,
1609                        depth: 0,
1610                        validation_state: ValidationState::None,
1611                    });
1612                    let file_name = entry
1613                        .path
1614                        .file_name()
1615                        .map(|s| s.to_string_lossy())
1616                        .unwrap_or_default()
1617                        .to_string();
1618                    let selection = selection.unwrap_or_else(|| {
1619                        let file_stem = entry.path.file_stem().map(|s| s.to_string_lossy());
1620                        let selection_end =
1621                            file_stem.map_or(file_name.len(), |file_stem| file_stem.len());
1622                        0..selection_end
1623                    });
1624                    self.filename_editor.update(cx, |editor, cx| {
1625                        editor.set_text(file_name, window, cx);
1626                        editor.change_selections(Default::default(), window, cx, |s| {
1627                            s.select_ranges([selection])
1628                        });
1629                        window.focus(&editor.focus_handle(cx));
1630                    });
1631                    self.update_visible_entries(None, cx);
1632                    self.autoscroll(cx);
1633                    cx.notify();
1634                }
1635            }
1636        }
1637    }
1638
1639    fn rename(&mut self, _: &Rename, window: &mut Window, cx: &mut Context<Self>) {
1640        self.rename_impl(None, window, cx);
1641    }
1642
1643    fn trash(&mut self, action: &Trash, window: &mut Window, cx: &mut Context<Self>) {
1644        self.remove(true, action.skip_prompt, window, cx);
1645    }
1646
1647    fn delete(&mut self, action: &Delete, window: &mut Window, cx: &mut Context<Self>) {
1648        self.remove(false, action.skip_prompt, window, cx);
1649    }
1650
1651    fn remove(
1652        &mut self,
1653        trash: bool,
1654        skip_prompt: bool,
1655        window: &mut Window,
1656        cx: &mut Context<ProjectPanel>,
1657    ) {
1658        maybe!({
1659            let items_to_delete = self.disjoint_entries(cx);
1660            if items_to_delete.is_empty() {
1661                return None;
1662            }
1663            let project = self.project.read(cx);
1664
1665            let mut dirty_buffers = 0;
1666            let file_paths = items_to_delete
1667                .iter()
1668                .filter_map(|selection| {
1669                    let project_path = project.path_for_entry(selection.entry_id, cx)?;
1670                    dirty_buffers +=
1671                        project.dirty_buffers(cx).any(|path| path == project_path) as usize;
1672                    Some((
1673                        selection.entry_id,
1674                        project_path
1675                            .path
1676                            .file_name()?
1677                            .to_string_lossy()
1678                            .into_owned(),
1679                    ))
1680                })
1681                .collect::<Vec<_>>();
1682            if file_paths.is_empty() {
1683                return None;
1684            }
1685            let answer = if !skip_prompt {
1686                let operation = if trash { "Trash" } else { "Delete" };
1687                let prompt = match file_paths.first() {
1688                    Some((_, path)) if file_paths.len() == 1 => {
1689                        let unsaved_warning = if dirty_buffers > 0 {
1690                            "\n\nIt has unsaved changes, which will be lost."
1691                        } else {
1692                            ""
1693                        };
1694
1695                        format!("{operation} {path}?{unsaved_warning}")
1696                    }
1697                    _ => {
1698                        const CUTOFF_POINT: usize = 10;
1699                        let names = if file_paths.len() > CUTOFF_POINT {
1700                            let truncated_path_counts = file_paths.len() - CUTOFF_POINT;
1701                            let mut paths = file_paths
1702                                .iter()
1703                                .map(|(_, path)| path.clone())
1704                                .take(CUTOFF_POINT)
1705                                .collect::<Vec<_>>();
1706                            paths.truncate(CUTOFF_POINT);
1707                            if truncated_path_counts == 1 {
1708                                paths.push(".. 1 file not shown".into());
1709                            } else {
1710                                paths.push(format!(".. {} files not shown", truncated_path_counts));
1711                            }
1712                            paths
1713                        } else {
1714                            file_paths.iter().map(|(_, path)| path.clone()).collect()
1715                        };
1716                        let unsaved_warning = if dirty_buffers == 0 {
1717                            String::new()
1718                        } else if dirty_buffers == 1 {
1719                            "\n\n1 of these has unsaved changes, which will be lost.".to_string()
1720                        } else {
1721                            format!(
1722                                "\n\n{dirty_buffers} of these have unsaved changes, which will be lost."
1723                            )
1724                        };
1725
1726                        format!(
1727                            "Do you want to {} the following {} files?\n{}{unsaved_warning}",
1728                            operation.to_lowercase(),
1729                            file_paths.len(),
1730                            names.join("\n")
1731                        )
1732                    }
1733                };
1734                Some(window.prompt(PromptLevel::Info, &prompt, None, &[operation, "Cancel"], cx))
1735            } else {
1736                None
1737            };
1738            let next_selection = self.find_next_selection_after_deletion(items_to_delete, cx);
1739            cx.spawn_in(window, async move |panel, cx| {
1740                if let Some(answer) = answer {
1741                    if answer.await != Ok(0) {
1742                        return anyhow::Ok(());
1743                    }
1744                }
1745                for (entry_id, _) in file_paths {
1746                    panel
1747                        .update(cx, |panel, cx| {
1748                            panel
1749                                .project
1750                                .update(cx, |project, cx| project.delete_entry(entry_id, trash, cx))
1751                                .context("no such entry")
1752                        })??
1753                        .await?;
1754                }
1755                panel.update_in(cx, |panel, window, cx| {
1756                    if let Some(next_selection) = next_selection {
1757                        panel.selection = Some(next_selection);
1758                        panel.autoscroll(cx);
1759                    } else {
1760                        panel.select_last(&SelectLast {}, window, cx);
1761                    }
1762                })?;
1763                Ok(())
1764            })
1765            .detach_and_log_err(cx);
1766            Some(())
1767        });
1768    }
1769
1770    fn find_next_selection_after_deletion(
1771        &self,
1772        sanitized_entries: BTreeSet<SelectedEntry>,
1773        cx: &mut Context<Self>,
1774    ) -> Option<SelectedEntry> {
1775        if sanitized_entries.is_empty() {
1776            return None;
1777        }
1778        let project = self.project.read(cx);
1779        let (worktree_id, worktree) = sanitized_entries
1780            .iter()
1781            .map(|entry| entry.worktree_id)
1782            .filter_map(|id| project.worktree_for_id(id, cx).map(|w| (id, w.read(cx))))
1783            .max_by(|(_, a), (_, b)| a.root_name().cmp(b.root_name()))?;
1784        let git_store = project.git_store().read(cx);
1785
1786        let marked_entries_in_worktree = sanitized_entries
1787            .iter()
1788            .filter(|e| e.worktree_id == worktree_id)
1789            .collect::<HashSet<_>>();
1790        let latest_entry = marked_entries_in_worktree
1791            .iter()
1792            .max_by(|a, b| {
1793                match (
1794                    worktree.entry_for_id(a.entry_id),
1795                    worktree.entry_for_id(b.entry_id),
1796                ) {
1797                    (Some(a), Some(b)) => {
1798                        compare_paths((&a.path, a.is_file()), (&b.path, b.is_file()))
1799                    }
1800                    _ => cmp::Ordering::Equal,
1801                }
1802            })
1803            .and_then(|e| worktree.entry_for_id(e.entry_id))?;
1804
1805        let parent_path = latest_entry.path.parent()?;
1806        let parent_entry = worktree.entry_for_path(parent_path)?;
1807
1808        // Remove all siblings that are being deleted except the last marked entry
1809        let repo_snapshots = git_store.repo_snapshots(cx);
1810        let worktree_snapshot = worktree.snapshot();
1811        let hide_gitignore = ProjectPanelSettings::get_global(cx).hide_gitignore;
1812        let mut siblings: Vec<_> =
1813            ChildEntriesGitIter::new(&repo_snapshots, &worktree_snapshot, parent_path)
1814                .filter(|sibling| {
1815                    (sibling.id == latest_entry.id)
1816                        || (!marked_entries_in_worktree.contains(&&SelectedEntry {
1817                            worktree_id,
1818                            entry_id: sibling.id,
1819                        }) && (!hide_gitignore || !sibling.is_ignored))
1820                })
1821                .map(|entry| entry.to_owned())
1822                .collect();
1823
1824        project::sort_worktree_entries(&mut siblings);
1825        let sibling_entry_index = siblings
1826            .iter()
1827            .position(|sibling| sibling.id == latest_entry.id)?;
1828
1829        if let Some(next_sibling) = sibling_entry_index
1830            .checked_add(1)
1831            .and_then(|i| siblings.get(i))
1832        {
1833            return Some(SelectedEntry {
1834                worktree_id,
1835                entry_id: next_sibling.id,
1836            });
1837        }
1838        if let Some(prev_sibling) = sibling_entry_index
1839            .checked_sub(1)
1840            .and_then(|i| siblings.get(i))
1841        {
1842            return Some(SelectedEntry {
1843                worktree_id,
1844                entry_id: prev_sibling.id,
1845            });
1846        }
1847        // No neighbour sibling found, fall back to parent
1848        Some(SelectedEntry {
1849            worktree_id,
1850            entry_id: parent_entry.id,
1851        })
1852    }
1853
1854    fn unfold_directory(&mut self, _: &UnfoldDirectory, _: &mut Window, cx: &mut Context<Self>) {
1855        if let Some((worktree, entry)) = self.selected_entry(cx) {
1856            self.unfolded_dir_ids.insert(entry.id);
1857
1858            let snapshot = worktree.snapshot();
1859            let mut parent_path = entry.path.parent();
1860            while let Some(path) = parent_path {
1861                if let Some(parent_entry) = worktree.entry_for_path(path) {
1862                    let mut children_iter = snapshot.child_entries(path);
1863
1864                    if children_iter.by_ref().take(2).count() > 1 {
1865                        break;
1866                    }
1867
1868                    self.unfolded_dir_ids.insert(parent_entry.id);
1869                    parent_path = path.parent();
1870                } else {
1871                    break;
1872                }
1873            }
1874
1875            self.update_visible_entries(None, cx);
1876            self.autoscroll(cx);
1877            cx.notify();
1878        }
1879    }
1880
1881    fn fold_directory(&mut self, _: &FoldDirectory, _: &mut Window, cx: &mut Context<Self>) {
1882        if let Some((worktree, entry)) = self.selected_entry(cx) {
1883            self.unfolded_dir_ids.remove(&entry.id);
1884
1885            let snapshot = worktree.snapshot();
1886            let mut path = &*entry.path;
1887            loop {
1888                let mut child_entries_iter = snapshot.child_entries(path);
1889                if let Some(child) = child_entries_iter.next() {
1890                    if child_entries_iter.next().is_none() && child.is_dir() {
1891                        self.unfolded_dir_ids.remove(&child.id);
1892                        path = &*child.path;
1893                    } else {
1894                        break;
1895                    }
1896                } else {
1897                    break;
1898                }
1899            }
1900
1901            self.update_visible_entries(None, cx);
1902            self.autoscroll(cx);
1903            cx.notify();
1904        }
1905    }
1906
1907    fn select_next(&mut self, _: &SelectNext, window: &mut Window, cx: &mut Context<Self>) {
1908        if let Some(edit_state) = &self.edit_state {
1909            if edit_state.processing_filename.is_none() {
1910                self.filename_editor.update(cx, |editor, cx| {
1911                    editor.move_to_end_of_line(
1912                        &editor::actions::MoveToEndOfLine {
1913                            stop_at_soft_wraps: false,
1914                        },
1915                        window,
1916                        cx,
1917                    );
1918                });
1919                return;
1920            }
1921        }
1922        if let Some(selection) = self.selection {
1923            let (mut worktree_ix, mut entry_ix, _) =
1924                self.index_for_selection(selection).unwrap_or_default();
1925            if let Some((_, worktree_entries, _)) = self.visible_entries.get(worktree_ix) {
1926                if entry_ix + 1 < worktree_entries.len() {
1927                    entry_ix += 1;
1928                } else {
1929                    worktree_ix += 1;
1930                    entry_ix = 0;
1931                }
1932            }
1933
1934            if let Some((worktree_id, worktree_entries, _)) = self.visible_entries.get(worktree_ix)
1935            {
1936                if let Some(entry) = worktree_entries.get(entry_ix) {
1937                    let selection = SelectedEntry {
1938                        worktree_id: *worktree_id,
1939                        entry_id: entry.id,
1940                    };
1941                    self.selection = Some(selection);
1942                    if window.modifiers().shift {
1943                        self.marked_entries.insert(selection);
1944                    }
1945
1946                    self.autoscroll(cx);
1947                    cx.notify();
1948                }
1949            }
1950        } else {
1951            self.select_first(&SelectFirst {}, window, cx);
1952        }
1953    }
1954
1955    fn select_prev_diagnostic(
1956        &mut self,
1957        _: &SelectPrevDiagnostic,
1958        _: &mut Window,
1959        cx: &mut Context<Self>,
1960    ) {
1961        let selection = self.find_entry(
1962            self.selection.as_ref(),
1963            true,
1964            |entry, worktree_id| {
1965                (self.selection.is_none()
1966                    || self.selection.is_some_and(|selection| {
1967                        if selection.worktree_id == worktree_id {
1968                            selection.entry_id != entry.id
1969                        } else {
1970                            true
1971                        }
1972                    }))
1973                    && entry.is_file()
1974                    && self
1975                        .diagnostics
1976                        .contains_key(&(worktree_id, entry.path.to_path_buf()))
1977            },
1978            cx,
1979        );
1980
1981        if let Some(selection) = selection {
1982            self.selection = Some(selection);
1983            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
1984            self.update_visible_entries(Some((selection.worktree_id, selection.entry_id)), cx);
1985            self.autoscroll(cx);
1986            cx.notify();
1987        }
1988    }
1989
1990    fn select_next_diagnostic(
1991        &mut self,
1992        _: &SelectNextDiagnostic,
1993        _: &mut Window,
1994        cx: &mut Context<Self>,
1995    ) {
1996        let selection = self.find_entry(
1997            self.selection.as_ref(),
1998            false,
1999            |entry, worktree_id| {
2000                (self.selection.is_none()
2001                    || self.selection.is_some_and(|selection| {
2002                        if selection.worktree_id == worktree_id {
2003                            selection.entry_id != entry.id
2004                        } else {
2005                            true
2006                        }
2007                    }))
2008                    && entry.is_file()
2009                    && self
2010                        .diagnostics
2011                        .contains_key(&(worktree_id, entry.path.to_path_buf()))
2012            },
2013            cx,
2014        );
2015
2016        if let Some(selection) = selection {
2017            self.selection = Some(selection);
2018            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2019            self.update_visible_entries(Some((selection.worktree_id, selection.entry_id)), cx);
2020            self.autoscroll(cx);
2021            cx.notify();
2022        }
2023    }
2024
2025    fn select_prev_git_entry(
2026        &mut self,
2027        _: &SelectPrevGitEntry,
2028        _: &mut Window,
2029        cx: &mut Context<Self>,
2030    ) {
2031        let selection = self.find_entry(
2032            self.selection.as_ref(),
2033            true,
2034            |entry, worktree_id| {
2035                (self.selection.is_none()
2036                    || self.selection.is_some_and(|selection| {
2037                        if selection.worktree_id == worktree_id {
2038                            selection.entry_id != entry.id
2039                        } else {
2040                            true
2041                        }
2042                    }))
2043                    && entry.is_file()
2044                    && entry.git_summary.index.modified + entry.git_summary.worktree.modified > 0
2045            },
2046            cx,
2047        );
2048
2049        if let Some(selection) = selection {
2050            self.selection = Some(selection);
2051            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2052            self.update_visible_entries(Some((selection.worktree_id, selection.entry_id)), cx);
2053            self.autoscroll(cx);
2054            cx.notify();
2055        }
2056    }
2057
2058    fn select_prev_directory(
2059        &mut self,
2060        _: &SelectPrevDirectory,
2061        _: &mut Window,
2062        cx: &mut Context<Self>,
2063    ) {
2064        let selection = self.find_visible_entry(
2065            self.selection.as_ref(),
2066            true,
2067            |entry, worktree_id| {
2068                (self.selection.is_none()
2069                    || self.selection.is_some_and(|selection| {
2070                        if selection.worktree_id == worktree_id {
2071                            selection.entry_id != entry.id
2072                        } else {
2073                            true
2074                        }
2075                    }))
2076                    && entry.is_dir()
2077            },
2078            cx,
2079        );
2080
2081        if let Some(selection) = selection {
2082            self.selection = Some(selection);
2083            self.autoscroll(cx);
2084            cx.notify();
2085        }
2086    }
2087
2088    fn select_next_directory(
2089        &mut self,
2090        _: &SelectNextDirectory,
2091        _: &mut Window,
2092        cx: &mut Context<Self>,
2093    ) {
2094        let selection = self.find_visible_entry(
2095            self.selection.as_ref(),
2096            false,
2097            |entry, worktree_id| {
2098                (self.selection.is_none()
2099                    || self.selection.is_some_and(|selection| {
2100                        if selection.worktree_id == worktree_id {
2101                            selection.entry_id != entry.id
2102                        } else {
2103                            true
2104                        }
2105                    }))
2106                    && entry.is_dir()
2107            },
2108            cx,
2109        );
2110
2111        if let Some(selection) = selection {
2112            self.selection = Some(selection);
2113            self.autoscroll(cx);
2114            cx.notify();
2115        }
2116    }
2117
2118    fn select_next_git_entry(
2119        &mut self,
2120        _: &SelectNextGitEntry,
2121        _: &mut Window,
2122        cx: &mut Context<Self>,
2123    ) {
2124        let selection = self.find_entry(
2125            self.selection.as_ref(),
2126            false,
2127            |entry, worktree_id| {
2128                (self.selection.is_none()
2129                    || self.selection.is_some_and(|selection| {
2130                        if selection.worktree_id == worktree_id {
2131                            selection.entry_id != entry.id
2132                        } else {
2133                            true
2134                        }
2135                    }))
2136                    && entry.is_file()
2137                    && entry.git_summary.index.modified + entry.git_summary.worktree.modified > 0
2138            },
2139            cx,
2140        );
2141
2142        if let Some(selection) = selection {
2143            self.selection = Some(selection);
2144            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2145            self.update_visible_entries(Some((selection.worktree_id, selection.entry_id)), cx);
2146            self.autoscroll(cx);
2147            cx.notify();
2148        }
2149    }
2150
2151    fn select_parent(&mut self, _: &SelectParent, window: &mut Window, cx: &mut Context<Self>) {
2152        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2153            if let Some(parent) = entry.path.parent() {
2154                let worktree = worktree.read(cx);
2155                if let Some(parent_entry) = worktree.entry_for_path(parent) {
2156                    self.selection = Some(SelectedEntry {
2157                        worktree_id: worktree.id(),
2158                        entry_id: parent_entry.id,
2159                    });
2160                    self.autoscroll(cx);
2161                    cx.notify();
2162                }
2163            }
2164        } else {
2165            self.select_first(&SelectFirst {}, window, cx);
2166        }
2167    }
2168
2169    fn select_first(&mut self, _: &SelectFirst, window: &mut Window, cx: &mut Context<Self>) {
2170        if let Some((worktree_id, visible_worktree_entries, _)) = self.visible_entries.first() {
2171            if let Some(entry) = visible_worktree_entries.first() {
2172                let selection = SelectedEntry {
2173                    worktree_id: *worktree_id,
2174                    entry_id: entry.id,
2175                };
2176                self.selection = Some(selection);
2177                if window.modifiers().shift {
2178                    self.marked_entries.insert(selection);
2179                }
2180                self.autoscroll(cx);
2181                cx.notify();
2182            }
2183        }
2184    }
2185
2186    fn select_last(&mut self, _: &SelectLast, _: &mut Window, cx: &mut Context<Self>) {
2187        if let Some((worktree_id, visible_worktree_entries, _)) = self.visible_entries.last() {
2188            let worktree = self.project.read(cx).worktree_for_id(*worktree_id, cx);
2189            if let (Some(worktree), Some(entry)) = (worktree, visible_worktree_entries.last()) {
2190                let worktree = worktree.read(cx);
2191                if let Some(entry) = worktree.entry_for_id(entry.id) {
2192                    let selection = SelectedEntry {
2193                        worktree_id: *worktree_id,
2194                        entry_id: entry.id,
2195                    };
2196                    self.selection = Some(selection);
2197                    self.autoscroll(cx);
2198                    cx.notify();
2199                }
2200            }
2201        }
2202    }
2203
2204    fn autoscroll(&mut self, cx: &mut Context<Self>) {
2205        if let Some((_, _, index)) = self.selection.and_then(|s| self.index_for_selection(s)) {
2206            self.scroll_handle
2207                .scroll_to_item(index, ScrollStrategy::Center);
2208            cx.notify();
2209        }
2210    }
2211
2212    fn cut(&mut self, _: &Cut, _: &mut Window, cx: &mut Context<Self>) {
2213        let entries = self.disjoint_entries(cx);
2214        if !entries.is_empty() {
2215            self.clipboard = Some(ClipboardEntry::Cut(entries));
2216            cx.notify();
2217        }
2218    }
2219
2220    fn copy(&mut self, _: &Copy, _: &mut Window, cx: &mut Context<Self>) {
2221        let entries = self.disjoint_entries(cx);
2222        if !entries.is_empty() {
2223            self.clipboard = Some(ClipboardEntry::Copied(entries));
2224            cx.notify();
2225        }
2226    }
2227
2228    fn create_paste_path(
2229        &self,
2230        source: &SelectedEntry,
2231        (worktree, target_entry): (Entity<Worktree>, &Entry),
2232        cx: &App,
2233    ) -> Option<(PathBuf, Option<Range<usize>>)> {
2234        let mut new_path = target_entry.path.to_path_buf();
2235        // If we're pasting into a file, or a directory into itself, go up one level.
2236        if target_entry.is_file() || (target_entry.is_dir() && target_entry.id == source.entry_id) {
2237            new_path.pop();
2238        }
2239        let clipboard_entry_file_name = self
2240            .project
2241            .read(cx)
2242            .path_for_entry(source.entry_id, cx)?
2243            .path
2244            .file_name()?
2245            .to_os_string();
2246        new_path.push(&clipboard_entry_file_name);
2247        let extension = new_path.extension().map(|e| e.to_os_string());
2248        let file_name_without_extension = Path::new(&clipboard_entry_file_name).file_stem()?;
2249        let file_name_len = file_name_without_extension.to_string_lossy().len();
2250        let mut disambiguation_range = None;
2251        let mut ix = 0;
2252        {
2253            let worktree = worktree.read(cx);
2254            while worktree.entry_for_path(&new_path).is_some() {
2255                new_path.pop();
2256
2257                let mut new_file_name = file_name_without_extension.to_os_string();
2258
2259                let disambiguation = " copy";
2260                let mut disambiguation_len = disambiguation.len();
2261
2262                new_file_name.push(disambiguation);
2263
2264                if ix > 0 {
2265                    let extra_disambiguation = format!(" {}", ix);
2266                    disambiguation_len += extra_disambiguation.len();
2267
2268                    new_file_name.push(extra_disambiguation);
2269                }
2270                if let Some(extension) = extension.as_ref() {
2271                    new_file_name.push(".");
2272                    new_file_name.push(extension);
2273                }
2274
2275                new_path.push(new_file_name);
2276                disambiguation_range = Some(file_name_len..(file_name_len + disambiguation_len));
2277                ix += 1;
2278            }
2279        }
2280        Some((new_path, disambiguation_range))
2281    }
2282
2283    fn paste(&mut self, _: &Paste, window: &mut Window, cx: &mut Context<Self>) {
2284        maybe!({
2285            let (worktree, entry) = self.selected_entry_handle(cx)?;
2286            let entry = entry.clone();
2287            let worktree_id = worktree.read(cx).id();
2288            let clipboard_entries = self
2289                .clipboard
2290                .as_ref()
2291                .filter(|clipboard| !clipboard.items().is_empty())?;
2292            enum PasteTask {
2293                Rename(Task<Result<CreatedEntry>>),
2294                Copy(Task<Result<Option<Entry>>>),
2295            }
2296            let mut paste_entry_tasks: IndexMap<(ProjectEntryId, bool), PasteTask> =
2297                IndexMap::default();
2298            let mut disambiguation_range = None;
2299            let clip_is_cut = clipboard_entries.is_cut();
2300            for clipboard_entry in clipboard_entries.items() {
2301                let (new_path, new_disambiguation_range) =
2302                    self.create_paste_path(clipboard_entry, self.selected_sub_entry(cx)?, cx)?;
2303                let clip_entry_id = clipboard_entry.entry_id;
2304                let is_same_worktree = clipboard_entry.worktree_id == worktree_id;
2305                let relative_worktree_source_path = if !is_same_worktree {
2306                    let target_base_path = worktree.read(cx).abs_path();
2307                    let clipboard_project_path =
2308                        self.project.read(cx).path_for_entry(clip_entry_id, cx)?;
2309                    let clipboard_abs_path = self
2310                        .project
2311                        .read(cx)
2312                        .absolute_path(&clipboard_project_path, cx)?;
2313                    Some(relativize_path(
2314                        &target_base_path,
2315                        clipboard_abs_path.as_path(),
2316                    ))
2317                } else {
2318                    None
2319                };
2320                let task = if clip_is_cut && is_same_worktree {
2321                    let task = self.project.update(cx, |project, cx| {
2322                        project.rename_entry(clip_entry_id, new_path, cx)
2323                    });
2324                    PasteTask::Rename(task)
2325                } else {
2326                    let entry_id = if is_same_worktree {
2327                        clip_entry_id
2328                    } else {
2329                        entry.id
2330                    };
2331                    let task = self.project.update(cx, |project, cx| {
2332                        project.copy_entry(entry_id, relative_worktree_source_path, new_path, cx)
2333                    });
2334                    PasteTask::Copy(task)
2335                };
2336                let needs_delete = !is_same_worktree && clip_is_cut;
2337                paste_entry_tasks.insert((clip_entry_id, needs_delete), task);
2338                disambiguation_range = new_disambiguation_range.or(disambiguation_range);
2339            }
2340
2341            let item_count = paste_entry_tasks.len();
2342
2343            cx.spawn_in(window, async move |project_panel, cx| {
2344                let mut last_succeed = None;
2345                let mut need_delete_ids = Vec::new();
2346                for ((entry_id, need_delete), task) in paste_entry_tasks.into_iter() {
2347                    match task {
2348                        PasteTask::Rename(task) => {
2349                            if let Some(CreatedEntry::Included(entry)) = task.await.log_err() {
2350                                last_succeed = Some(entry);
2351                            }
2352                        }
2353                        PasteTask::Copy(task) => {
2354                            if let Some(Some(entry)) = task.await.log_err() {
2355                                last_succeed = Some(entry);
2356                                if need_delete {
2357                                    need_delete_ids.push(entry_id);
2358                                }
2359                            }
2360                        }
2361                    }
2362                }
2363                // remove entry for cut in difference worktree
2364                for entry_id in need_delete_ids {
2365                    project_panel
2366                        .update(cx, |project_panel, cx| {
2367                            project_panel
2368                                .project
2369                                .update(cx, |project, cx| project.delete_entry(entry_id, true, cx))
2370                                .context("no such entry")
2371                        })??
2372                        .await?;
2373                }
2374                // update selection
2375                if let Some(entry) = last_succeed {
2376                    project_panel
2377                        .update_in(cx, |project_panel, window, cx| {
2378                            project_panel.selection = Some(SelectedEntry {
2379                                worktree_id,
2380                                entry_id: entry.id,
2381                            });
2382
2383                            if item_count == 1 {
2384                                // open entry if not dir, and only focus if rename is not pending
2385                                if !entry.is_dir() {
2386                                    project_panel.open_entry(
2387                                        entry.id,
2388                                        disambiguation_range.is_none(),
2389                                        false,
2390                                        cx,
2391                                    );
2392                                }
2393
2394                                // if only one entry was pasted and it was disambiguated, open the rename editor
2395                                if disambiguation_range.is_some() {
2396                                    cx.defer_in(window, |this, window, cx| {
2397                                        this.rename_impl(disambiguation_range, window, cx);
2398                                    });
2399                                }
2400                            }
2401                        })
2402                        .ok();
2403                }
2404
2405                anyhow::Ok(())
2406            })
2407            .detach_and_log_err(cx);
2408
2409            if clip_is_cut {
2410                // Convert the clipboard cut entry to a copy entry after the first paste.
2411                self.clipboard = self.clipboard.take().map(ClipboardEntry::to_copy_entry);
2412            }
2413
2414            self.expand_entry(worktree_id, entry.id, cx);
2415            Some(())
2416        });
2417    }
2418
2419    fn duplicate(&mut self, _: &Duplicate, window: &mut Window, cx: &mut Context<Self>) {
2420        self.copy(&Copy {}, window, cx);
2421        self.paste(&Paste {}, window, cx);
2422    }
2423
2424    fn copy_path(
2425        &mut self,
2426        _: &zed_actions::workspace::CopyPath,
2427        _: &mut Window,
2428        cx: &mut Context<Self>,
2429    ) {
2430        let abs_file_paths = {
2431            let project = self.project.read(cx);
2432            self.effective_entries()
2433                .into_iter()
2434                .filter_map(|entry| {
2435                    let entry_path = project.path_for_entry(entry.entry_id, cx)?.path;
2436                    Some(
2437                        project
2438                            .worktree_for_id(entry.worktree_id, cx)?
2439                            .read(cx)
2440                            .abs_path()
2441                            .join(entry_path)
2442                            .to_string_lossy()
2443                            .to_string(),
2444                    )
2445                })
2446                .collect::<Vec<_>>()
2447        };
2448        if !abs_file_paths.is_empty() {
2449            cx.write_to_clipboard(ClipboardItem::new_string(abs_file_paths.join("\n")));
2450        }
2451    }
2452
2453    fn copy_relative_path(
2454        &mut self,
2455        _: &zed_actions::workspace::CopyRelativePath,
2456        _: &mut Window,
2457        cx: &mut Context<Self>,
2458    ) {
2459        let file_paths = {
2460            let project = self.project.read(cx);
2461            self.effective_entries()
2462                .into_iter()
2463                .filter_map(|entry| {
2464                    Some(
2465                        project
2466                            .path_for_entry(entry.entry_id, cx)?
2467                            .path
2468                            .to_string_lossy()
2469                            .to_string(),
2470                    )
2471                })
2472                .collect::<Vec<_>>()
2473        };
2474        if !file_paths.is_empty() {
2475            cx.write_to_clipboard(ClipboardItem::new_string(file_paths.join("\n")));
2476        }
2477    }
2478
2479    fn reveal_in_finder(
2480        &mut self,
2481        _: &RevealInFileManager,
2482        _: &mut Window,
2483        cx: &mut Context<Self>,
2484    ) {
2485        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2486            cx.reveal_path(&worktree.read(cx).abs_path().join(&entry.path));
2487        }
2488    }
2489
2490    fn remove_from_project(
2491        &mut self,
2492        _: &RemoveFromProject,
2493        _window: &mut Window,
2494        cx: &mut Context<Self>,
2495    ) {
2496        for entry in self.effective_entries().iter() {
2497            let worktree_id = entry.worktree_id;
2498            self.project
2499                .update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
2500        }
2501    }
2502
2503    fn open_system(&mut self, _: &OpenWithSystem, _: &mut Window, cx: &mut Context<Self>) {
2504        if let Some((worktree, entry)) = self.selected_entry(cx) {
2505            let abs_path = worktree.abs_path().join(&entry.path);
2506            cx.open_with_system(&abs_path);
2507        }
2508    }
2509
2510    fn open_in_terminal(
2511        &mut self,
2512        _: &OpenInTerminal,
2513        window: &mut Window,
2514        cx: &mut Context<Self>,
2515    ) {
2516        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2517            let abs_path = match &entry.canonical_path {
2518                Some(canonical_path) => Some(canonical_path.to_path_buf()),
2519                None => worktree.read(cx).absolutize(&entry.path).ok(),
2520            };
2521
2522            let working_directory = if entry.is_dir() {
2523                abs_path
2524            } else {
2525                abs_path.and_then(|path| Some(path.parent()?.to_path_buf()))
2526            };
2527            if let Some(working_directory) = working_directory {
2528                window.dispatch_action(
2529                    workspace::OpenTerminal { working_directory }.boxed_clone(),
2530                    cx,
2531                )
2532            }
2533        }
2534    }
2535
2536    pub fn new_search_in_directory(
2537        &mut self,
2538        _: &NewSearchInDirectory,
2539        window: &mut Window,
2540        cx: &mut Context<Self>,
2541    ) {
2542        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2543            let dir_path = if entry.is_dir() {
2544                entry.path.clone()
2545            } else {
2546                // entry is a file, use its parent directory
2547                match entry.path.parent() {
2548                    Some(parent) => Arc::from(parent),
2549                    None => {
2550                        // File at root, open search with empty filter
2551                        self.workspace
2552                            .update(cx, |workspace, cx| {
2553                                search::ProjectSearchView::new_search_in_directory(
2554                                    workspace,
2555                                    Path::new(""),
2556                                    window,
2557                                    cx,
2558                                );
2559                            })
2560                            .ok();
2561                        return;
2562                    }
2563                }
2564            };
2565
2566            let include_root = self.project.read(cx).visible_worktrees(cx).count() > 1;
2567            let dir_path = if include_root {
2568                let mut full_path = PathBuf::from(worktree.read(cx).root_name());
2569                full_path.push(&dir_path);
2570                Arc::from(full_path)
2571            } else {
2572                dir_path
2573            };
2574
2575            self.workspace
2576                .update(cx, |workspace, cx| {
2577                    search::ProjectSearchView::new_search_in_directory(
2578                        workspace, &dir_path, window, cx,
2579                    );
2580                })
2581                .ok();
2582        }
2583    }
2584
2585    fn move_entry(
2586        &mut self,
2587        entry_to_move: ProjectEntryId,
2588        destination: ProjectEntryId,
2589        destination_is_file: bool,
2590        cx: &mut Context<Self>,
2591    ) {
2592        if self
2593            .project
2594            .read(cx)
2595            .entry_is_worktree_root(entry_to_move, cx)
2596        {
2597            self.move_worktree_root(entry_to_move, destination, cx)
2598        } else {
2599            self.move_worktree_entry(entry_to_move, destination, destination_is_file, cx)
2600        }
2601    }
2602
2603    fn move_worktree_root(
2604        &mut self,
2605        entry_to_move: ProjectEntryId,
2606        destination: ProjectEntryId,
2607        cx: &mut Context<Self>,
2608    ) {
2609        self.project.update(cx, |project, cx| {
2610            let Some(worktree_to_move) = project.worktree_for_entry(entry_to_move, cx) else {
2611                return;
2612            };
2613            let Some(destination_worktree) = project.worktree_for_entry(destination, cx) else {
2614                return;
2615            };
2616
2617            let worktree_id = worktree_to_move.read(cx).id();
2618            let destination_id = destination_worktree.read(cx).id();
2619
2620            project
2621                .move_worktree(worktree_id, destination_id, cx)
2622                .log_err();
2623        });
2624    }
2625
2626    fn move_worktree_entry(
2627        &mut self,
2628        entry_to_move: ProjectEntryId,
2629        destination: ProjectEntryId,
2630        destination_is_file: bool,
2631        cx: &mut Context<Self>,
2632    ) {
2633        if entry_to_move == destination {
2634            return;
2635        }
2636
2637        let destination_worktree = self.project.update(cx, |project, cx| {
2638            let entry_path = project.path_for_entry(entry_to_move, cx)?;
2639            let destination_entry_path = project.path_for_entry(destination, cx)?.path.clone();
2640
2641            let mut destination_path = destination_entry_path.as_ref();
2642            if destination_is_file {
2643                destination_path = destination_path.parent()?;
2644            }
2645
2646            let mut new_path = destination_path.to_path_buf();
2647            new_path.push(entry_path.path.file_name()?);
2648            if new_path != entry_path.path.as_ref() {
2649                let task = project.rename_entry(entry_to_move, new_path, cx);
2650                cx.foreground_executor().spawn(task).detach_and_log_err(cx);
2651            }
2652
2653            project.worktree_id_for_entry(destination, cx)
2654        });
2655
2656        if let Some(destination_worktree) = destination_worktree {
2657            self.expand_entry(destination_worktree, destination, cx);
2658        }
2659    }
2660
2661    fn index_for_selection(&self, selection: SelectedEntry) -> Option<(usize, usize, usize)> {
2662        let mut entry_index = 0;
2663        let mut visible_entries_index = 0;
2664        for (worktree_index, (worktree_id, worktree_entries, _)) in
2665            self.visible_entries.iter().enumerate()
2666        {
2667            if *worktree_id == selection.worktree_id {
2668                for entry in worktree_entries {
2669                    if entry.id == selection.entry_id {
2670                        return Some((worktree_index, entry_index, visible_entries_index));
2671                    } else {
2672                        visible_entries_index += 1;
2673                        entry_index += 1;
2674                    }
2675                }
2676                break;
2677            } else {
2678                visible_entries_index += worktree_entries.len();
2679            }
2680        }
2681        None
2682    }
2683
2684    fn disjoint_entries(&self, cx: &App) -> BTreeSet<SelectedEntry> {
2685        let marked_entries = self.effective_entries();
2686        let mut sanitized_entries = BTreeSet::new();
2687        if marked_entries.is_empty() {
2688            return sanitized_entries;
2689        }
2690
2691        let project = self.project.read(cx);
2692        let marked_entries_by_worktree: HashMap<WorktreeId, Vec<SelectedEntry>> = marked_entries
2693            .into_iter()
2694            .filter(|entry| !project.entry_is_worktree_root(entry.entry_id, cx))
2695            .fold(HashMap::default(), |mut map, entry| {
2696                map.entry(entry.worktree_id).or_default().push(entry);
2697                map
2698            });
2699
2700        for (worktree_id, marked_entries) in marked_entries_by_worktree {
2701            if let Some(worktree) = project.worktree_for_id(worktree_id, cx) {
2702                let worktree = worktree.read(cx);
2703                let marked_dir_paths = marked_entries
2704                    .iter()
2705                    .filter_map(|entry| {
2706                        worktree.entry_for_id(entry.entry_id).and_then(|entry| {
2707                            if entry.is_dir() {
2708                                Some(entry.path.as_ref())
2709                            } else {
2710                                None
2711                            }
2712                        })
2713                    })
2714                    .collect::<BTreeSet<_>>();
2715
2716                sanitized_entries.extend(marked_entries.into_iter().filter(|entry| {
2717                    let Some(entry_info) = worktree.entry_for_id(entry.entry_id) else {
2718                        return false;
2719                    };
2720                    let entry_path = entry_info.path.as_ref();
2721                    let inside_marked_dir = marked_dir_paths.iter().any(|&marked_dir_path| {
2722                        entry_path != marked_dir_path && entry_path.starts_with(marked_dir_path)
2723                    });
2724                    !inside_marked_dir
2725                }));
2726            }
2727        }
2728
2729        sanitized_entries
2730    }
2731
2732    fn effective_entries(&self) -> BTreeSet<SelectedEntry> {
2733        if let Some(selection) = self.selection {
2734            let selection = SelectedEntry {
2735                entry_id: self.resolve_entry(selection.entry_id),
2736                worktree_id: selection.worktree_id,
2737            };
2738
2739            // Default to using just the selected item when nothing is marked.
2740            if self.marked_entries.is_empty() {
2741                return BTreeSet::from([selection]);
2742            }
2743
2744            // Allow operating on the selected item even when something else is marked,
2745            // making it easier to perform one-off actions without clearing a mark.
2746            if self.marked_entries.len() == 1 && !self.marked_entries.contains(&selection) {
2747                return BTreeSet::from([selection]);
2748            }
2749        }
2750
2751        // Return only marked entries since we've already handled special cases where
2752        // only selection should take precedence. At this point, marked entries may or
2753        // may not include the current selection, which is intentional.
2754        self.marked_entries
2755            .iter()
2756            .map(|entry| SelectedEntry {
2757                entry_id: self.resolve_entry(entry.entry_id),
2758                worktree_id: entry.worktree_id,
2759            })
2760            .collect::<BTreeSet<_>>()
2761    }
2762
2763    /// Finds the currently selected subentry for a given leaf entry id. If a given entry
2764    /// has no ancestors, the project entry ID that's passed in is returned as-is.
2765    fn resolve_entry(&self, id: ProjectEntryId) -> ProjectEntryId {
2766        self.ancestors
2767            .get(&id)
2768            .and_then(|ancestors| {
2769                if ancestors.current_ancestor_depth == 0 {
2770                    return None;
2771                }
2772                ancestors.ancestors.get(ancestors.current_ancestor_depth)
2773            })
2774            .copied()
2775            .unwrap_or(id)
2776    }
2777
2778    pub fn selected_entry<'a>(&self, cx: &'a App) -> Option<(&'a Worktree, &'a project::Entry)> {
2779        let (worktree, entry) = self.selected_entry_handle(cx)?;
2780        Some((worktree.read(cx), entry))
2781    }
2782
2783    /// Compared to selected_entry, this function resolves to the currently
2784    /// selected subentry if dir auto-folding is enabled.
2785    fn selected_sub_entry<'a>(
2786        &self,
2787        cx: &'a App,
2788    ) -> Option<(Entity<Worktree>, &'a project::Entry)> {
2789        let (worktree, mut entry) = self.selected_entry_handle(cx)?;
2790
2791        let resolved_id = self.resolve_entry(entry.id);
2792        if resolved_id != entry.id {
2793            let worktree = worktree.read(cx);
2794            entry = worktree.entry_for_id(resolved_id)?;
2795        }
2796        Some((worktree, entry))
2797    }
2798    fn selected_entry_handle<'a>(
2799        &self,
2800        cx: &'a App,
2801    ) -> Option<(Entity<Worktree>, &'a project::Entry)> {
2802        let selection = self.selection?;
2803        let project = self.project.read(cx);
2804        let worktree = project.worktree_for_id(selection.worktree_id, cx)?;
2805        let entry = worktree.read(cx).entry_for_id(selection.entry_id)?;
2806        Some((worktree, entry))
2807    }
2808
2809    fn expand_to_selection(&mut self, cx: &mut Context<Self>) -> Option<()> {
2810        let (worktree, entry) = self.selected_entry(cx)?;
2811        let expanded_dir_ids = self.expanded_dir_ids.entry(worktree.id()).or_default();
2812
2813        for path in entry.path.ancestors() {
2814            let Some(entry) = worktree.entry_for_path(path) else {
2815                continue;
2816            };
2817            if entry.is_dir() {
2818                if let Err(idx) = expanded_dir_ids.binary_search(&entry.id) {
2819                    expanded_dir_ids.insert(idx, entry.id);
2820                }
2821            }
2822        }
2823
2824        Some(())
2825    }
2826
2827    fn create_new_git_entry(
2828        parent_entry: &Entry,
2829        git_summary: GitSummary,
2830        new_entry_kind: EntryKind,
2831    ) -> GitEntry {
2832        GitEntry {
2833            entry: Entry {
2834                id: NEW_ENTRY_ID,
2835                kind: new_entry_kind,
2836                path: parent_entry.path.join("\0").into(),
2837                inode: 0,
2838                mtime: parent_entry.mtime,
2839                size: parent_entry.size,
2840                is_ignored: parent_entry.is_ignored,
2841                is_external: false,
2842                is_private: false,
2843                is_always_included: parent_entry.is_always_included,
2844                canonical_path: parent_entry.canonical_path.clone(),
2845                char_bag: parent_entry.char_bag,
2846                is_fifo: parent_entry.is_fifo,
2847            },
2848            git_summary,
2849        }
2850    }
2851
2852    fn update_visible_entries(
2853        &mut self,
2854        new_selected_entry: Option<(WorktreeId, ProjectEntryId)>,
2855        cx: &mut Context<Self>,
2856    ) {
2857        let settings = ProjectPanelSettings::get_global(cx);
2858        let auto_collapse_dirs = settings.auto_fold_dirs;
2859        let hide_gitignore = settings.hide_gitignore;
2860        let project = self.project.read(cx);
2861        let repo_snapshots = project.git_store().read(cx).repo_snapshots(cx);
2862        self.last_worktree_root_id = project
2863            .visible_worktrees(cx)
2864            .next_back()
2865            .and_then(|worktree| worktree.read(cx).root_entry())
2866            .map(|entry| entry.id);
2867
2868        let old_ancestors = std::mem::take(&mut self.ancestors);
2869        self.visible_entries.clear();
2870        let mut max_width_item = None;
2871
2872        let visible_worktrees: Vec<_> = project.visible_worktrees(cx).collect();
2873        let hide_root = settings.hide_root && visible_worktrees.len() == 1;
2874        for worktree in visible_worktrees {
2875            let worktree_snapshot = worktree.read(cx).snapshot();
2876            let worktree_id = worktree_snapshot.id();
2877
2878            let expanded_dir_ids = match self.expanded_dir_ids.entry(worktree_id) {
2879                hash_map::Entry::Occupied(e) => e.into_mut(),
2880                hash_map::Entry::Vacant(e) => {
2881                    // The first time a worktree's root entry becomes available,
2882                    // mark that root entry as expanded.
2883                    if let Some(entry) = worktree_snapshot.root_entry() {
2884                        e.insert(vec![entry.id]).as_slice()
2885                    } else {
2886                        &[]
2887                    }
2888                }
2889            };
2890
2891            let mut new_entry_parent_id = None;
2892            let mut new_entry_kind = EntryKind::Dir;
2893            if let Some(edit_state) = &self.edit_state {
2894                if edit_state.worktree_id == worktree_id && edit_state.is_new_entry() {
2895                    new_entry_parent_id = Some(edit_state.entry_id);
2896                    new_entry_kind = if edit_state.is_dir {
2897                        EntryKind::Dir
2898                    } else {
2899                        EntryKind::File
2900                    };
2901                }
2902            }
2903
2904            let mut visible_worktree_entries = Vec::new();
2905            let mut entry_iter =
2906                GitTraversal::new(&repo_snapshots, worktree_snapshot.entries(true, 0));
2907            let mut auto_folded_ancestors = vec![];
2908            while let Some(entry) = entry_iter.entry() {
2909                if hide_root && Some(entry.entry) == worktree.read(cx).root_entry() {
2910                    if new_entry_parent_id == Some(entry.id) {
2911                        visible_worktree_entries.push(Self::create_new_git_entry(
2912                            &entry.entry,
2913                            entry.git_summary,
2914                            new_entry_kind,
2915                        ));
2916                        new_entry_parent_id = None;
2917                    }
2918                    entry_iter.advance();
2919                    continue;
2920                }
2921                if auto_collapse_dirs && entry.kind.is_dir() {
2922                    auto_folded_ancestors.push(entry.id);
2923                    if !self.unfolded_dir_ids.contains(&entry.id) {
2924                        if let Some(root_path) = worktree_snapshot.root_entry() {
2925                            let mut child_entries = worktree_snapshot.child_entries(&entry.path);
2926                            if let Some(child) = child_entries.next() {
2927                                if entry.path != root_path.path
2928                                    && child_entries.next().is_none()
2929                                    && child.kind.is_dir()
2930                                {
2931                                    entry_iter.advance();
2932
2933                                    continue;
2934                                }
2935                            }
2936                        }
2937                    }
2938                    let depth = old_ancestors
2939                        .get(&entry.id)
2940                        .map(|ancestor| ancestor.current_ancestor_depth)
2941                        .unwrap_or_default()
2942                        .min(auto_folded_ancestors.len());
2943                    if let Some(edit_state) = &mut self.edit_state {
2944                        if edit_state.entry_id == entry.id {
2945                            edit_state.depth = depth;
2946                        }
2947                    }
2948                    let mut ancestors = std::mem::take(&mut auto_folded_ancestors);
2949                    if ancestors.len() > 1 {
2950                        ancestors.reverse();
2951                        self.ancestors.insert(
2952                            entry.id,
2953                            FoldedAncestors {
2954                                current_ancestor_depth: depth,
2955                                ancestors,
2956                            },
2957                        );
2958                    }
2959                }
2960                auto_folded_ancestors.clear();
2961                if !hide_gitignore || !entry.is_ignored {
2962                    visible_worktree_entries.push(entry.to_owned());
2963                }
2964                let precedes_new_entry = if let Some(new_entry_id) = new_entry_parent_id {
2965                    entry.id == new_entry_id || {
2966                        self.ancestors
2967                            .get(&entry.id)
2968                            .map_or(false, |entries| entries.ancestors.contains(&new_entry_id))
2969                    }
2970                } else {
2971                    false
2972                };
2973                if precedes_new_entry && (!hide_gitignore || !entry.is_ignored) {
2974                    visible_worktree_entries.push(Self::create_new_git_entry(
2975                        &entry.entry,
2976                        entry.git_summary,
2977                        new_entry_kind,
2978                    ));
2979                }
2980                let worktree_abs_path = worktree.read(cx).abs_path();
2981                let (depth, path) = if Some(entry.entry) == worktree.read(cx).root_entry() {
2982                    let Some(path_name) = worktree_abs_path.file_name() else {
2983                        continue;
2984                    };
2985                    let path = ArcCow::Borrowed(Path::new(path_name));
2986                    let depth = 0;
2987                    (depth, path)
2988                } else if entry.is_file() {
2989                    let Some(path_name) = entry
2990                        .path
2991                        .file_name()
2992                        .with_context(|| format!("Non-root entry has no file name: {entry:?}"))
2993                        .log_err()
2994                    else {
2995                        continue;
2996                    };
2997                    let path = ArcCow::Borrowed(Path::new(path_name));
2998                    let depth = entry.path.ancestors().count() - 1;
2999                    (depth, path)
3000                } else {
3001                    let path = self
3002                        .ancestors
3003                        .get(&entry.id)
3004                        .and_then(|ancestors| {
3005                            let outermost_ancestor = ancestors.ancestors.last()?;
3006                            let root_folded_entry = worktree
3007                                .read(cx)
3008                                .entry_for_id(*outermost_ancestor)?
3009                                .path
3010                                .as_ref();
3011                            entry
3012                                .path
3013                                .strip_prefix(root_folded_entry)
3014                                .ok()
3015                                .and_then(|suffix| {
3016                                    let full_path = Path::new(root_folded_entry.file_name()?);
3017                                    Some(ArcCow::Owned(Arc::<Path>::from(full_path.join(suffix))))
3018                                })
3019                        })
3020                        .or_else(|| entry.path.file_name().map(Path::new).map(ArcCow::Borrowed))
3021                        .unwrap_or_else(|| ArcCow::Owned(entry.path.clone()));
3022                    let depth = path.components().count();
3023                    (depth, path)
3024                };
3025                let width_estimate = item_width_estimate(
3026                    depth,
3027                    path.to_string_lossy().chars().count(),
3028                    entry.canonical_path.is_some(),
3029                );
3030
3031                match max_width_item.as_mut() {
3032                    Some((id, worktree_id, width)) => {
3033                        if *width < width_estimate {
3034                            *id = entry.id;
3035                            *worktree_id = worktree.read(cx).id();
3036                            *width = width_estimate;
3037                        }
3038                    }
3039                    None => {
3040                        max_width_item = Some((entry.id, worktree.read(cx).id(), width_estimate))
3041                    }
3042                }
3043
3044                if expanded_dir_ids.binary_search(&entry.id).is_err()
3045                    && entry_iter.advance_to_sibling()
3046                {
3047                    continue;
3048                }
3049                entry_iter.advance();
3050            }
3051
3052            project::sort_worktree_entries(&mut visible_worktree_entries);
3053
3054            self.visible_entries
3055                .push((worktree_id, visible_worktree_entries, OnceCell::new()));
3056        }
3057
3058        if let Some((project_entry_id, worktree_id, _)) = max_width_item {
3059            let mut visited_worktrees_length = 0;
3060            let index = self.visible_entries.iter().find_map(|(id, entries, _)| {
3061                if worktree_id == *id {
3062                    entries
3063                        .iter()
3064                        .position(|entry| entry.id == project_entry_id)
3065                } else {
3066                    visited_worktrees_length += entries.len();
3067                    None
3068                }
3069            });
3070            if let Some(index) = index {
3071                self.max_width_item_index = Some(visited_worktrees_length + index);
3072            }
3073        }
3074        if let Some((worktree_id, entry_id)) = new_selected_entry {
3075            self.selection = Some(SelectedEntry {
3076                worktree_id,
3077                entry_id,
3078            });
3079        }
3080    }
3081
3082    fn expand_entry(
3083        &mut self,
3084        worktree_id: WorktreeId,
3085        entry_id: ProjectEntryId,
3086        cx: &mut Context<Self>,
3087    ) {
3088        self.project.update(cx, |project, cx| {
3089            if let Some((worktree, expanded_dir_ids)) = project
3090                .worktree_for_id(worktree_id, cx)
3091                .zip(self.expanded_dir_ids.get_mut(&worktree_id))
3092            {
3093                project.expand_entry(worktree_id, entry_id, cx);
3094                let worktree = worktree.read(cx);
3095
3096                if let Some(mut entry) = worktree.entry_for_id(entry_id) {
3097                    loop {
3098                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
3099                            expanded_dir_ids.insert(ix, entry.id);
3100                        }
3101
3102                        if let Some(parent_entry) =
3103                            entry.path.parent().and_then(|p| worktree.entry_for_path(p))
3104                        {
3105                            entry = parent_entry;
3106                        } else {
3107                            break;
3108                        }
3109                    }
3110                }
3111            }
3112        });
3113    }
3114
3115    fn drop_external_files(
3116        &mut self,
3117        paths: &[PathBuf],
3118        entry_id: ProjectEntryId,
3119        window: &mut Window,
3120        cx: &mut Context<Self>,
3121    ) {
3122        let mut paths: Vec<Arc<Path>> = paths.iter().map(|path| Arc::from(path.clone())).collect();
3123
3124        let open_file_after_drop = paths.len() == 1 && paths[0].is_file();
3125
3126        let Some((target_directory, worktree, fs)) = maybe!({
3127            let project = self.project.read(cx);
3128            let fs = project.fs().clone();
3129            let worktree = project.worktree_for_entry(entry_id, cx)?;
3130            let entry = worktree.read(cx).entry_for_id(entry_id)?;
3131            let path = entry.path.clone();
3132            let target_directory = if entry.is_dir() {
3133                path.to_path_buf()
3134            } else {
3135                path.parent()?.to_path_buf()
3136            };
3137            Some((target_directory, worktree, fs))
3138        }) else {
3139            return;
3140        };
3141
3142        let mut paths_to_replace = Vec::new();
3143        for path in &paths {
3144            if let Some(name) = path.file_name() {
3145                let mut target_path = target_directory.clone();
3146                target_path.push(name);
3147                if target_path.exists() {
3148                    paths_to_replace.push((name.to_string_lossy().to_string(), path.clone()));
3149                }
3150            }
3151        }
3152
3153        cx.spawn_in(window, async move |this, cx| {
3154            async move {
3155                for (filename, original_path) in &paths_to_replace {
3156                    let answer = cx.update(|window, cx| {
3157                        window
3158                            .prompt(
3159                                PromptLevel::Info,
3160                                format!("A file or folder with name {filename} already exists in the destination folder. Do you want to replace it?").as_str(),
3161                                None,
3162                                &["Replace", "Cancel"],
3163                                cx,
3164                            )
3165                    })?.await?;
3166
3167                    if answer == 1 {
3168                        if let Some(item_idx) = paths.iter().position(|p| p == original_path) {
3169                            paths.remove(item_idx);
3170                        }
3171                    }
3172                }
3173
3174                if paths.is_empty() {
3175                    return Ok(());
3176                }
3177
3178                let task = worktree.update( cx, |worktree, cx| {
3179                    worktree.copy_external_entries(target_directory.into(), paths, fs, cx)
3180                })?;
3181
3182                let opened_entries = task.await.with_context(|| "failed to copy external paths")?;
3183                this.update(cx, |this, cx| {
3184                    if open_file_after_drop && !opened_entries.is_empty() {
3185                        this.open_entry(opened_entries[0], true, false, cx);
3186                    }
3187                })
3188            }
3189            .log_err().await
3190        })
3191        .detach();
3192    }
3193
3194    fn refresh_drag_cursor_style(
3195        &self,
3196        modifiers: &Modifiers,
3197        window: &mut Window,
3198        cx: &mut Context<Self>,
3199    ) {
3200        if let Some(existing_cursor) = cx.active_drag_cursor_style() {
3201            let new_cursor = if Self::is_copy_modifier_set(modifiers) {
3202                CursorStyle::DragCopy
3203            } else {
3204                CursorStyle::PointingHand
3205            };
3206            if existing_cursor != new_cursor {
3207                cx.set_active_drag_cursor_style(new_cursor, window);
3208            }
3209        }
3210    }
3211
3212    fn is_copy_modifier_set(modifiers: &Modifiers) -> bool {
3213        cfg!(target_os = "macos") && modifiers.alt
3214            || cfg!(not(target_os = "macos")) && modifiers.control
3215    }
3216
3217    fn drag_onto(
3218        &mut self,
3219        selections: &DraggedSelection,
3220        target_entry_id: ProjectEntryId,
3221        is_file: bool,
3222        window: &mut Window,
3223        cx: &mut Context<Self>,
3224    ) {
3225        if Self::is_copy_modifier_set(&window.modifiers()) {
3226            let _ = maybe!({
3227                let project = self.project.read(cx);
3228                let target_worktree = project.worktree_for_entry(target_entry_id, cx)?;
3229                let worktree_id = target_worktree.read(cx).id();
3230                let target_entry = target_worktree
3231                    .read(cx)
3232                    .entry_for_id(target_entry_id)?
3233                    .clone();
3234
3235                let mut copy_tasks = Vec::new();
3236                let mut disambiguation_range = None;
3237                for selection in selections.items() {
3238                    let (new_path, new_disambiguation_range) = self.create_paste_path(
3239                        selection,
3240                        (target_worktree.clone(), &target_entry),
3241                        cx,
3242                    )?;
3243
3244                    let task = self.project.update(cx, |project, cx| {
3245                        project.copy_entry(selection.entry_id, None, new_path, cx)
3246                    });
3247                    copy_tasks.push(task);
3248                    disambiguation_range = new_disambiguation_range.or(disambiguation_range);
3249                }
3250
3251                let item_count = copy_tasks.len();
3252
3253                cx.spawn_in(window, async move |project_panel, cx| {
3254                    let mut last_succeed = None;
3255                    for task in copy_tasks.into_iter() {
3256                        if let Some(Some(entry)) = task.await.log_err() {
3257                            last_succeed = Some(entry.id);
3258                        }
3259                    }
3260                    // update selection
3261                    if let Some(entry_id) = last_succeed {
3262                        project_panel
3263                            .update_in(cx, |project_panel, window, cx| {
3264                                project_panel.selection = Some(SelectedEntry {
3265                                    worktree_id,
3266                                    entry_id,
3267                                });
3268
3269                                // if only one entry was dragged and it was disambiguated, open the rename editor
3270                                if item_count == 1 && disambiguation_range.is_some() {
3271                                    project_panel.rename_impl(disambiguation_range, window, cx);
3272                                }
3273                            })
3274                            .ok();
3275                    }
3276                })
3277                .detach();
3278                Some(())
3279            });
3280        } else {
3281            for selection in selections.items() {
3282                self.move_entry(selection.entry_id, target_entry_id, is_file, cx);
3283            }
3284        }
3285    }
3286
3287    fn index_for_entry(
3288        &self,
3289        entry_id: ProjectEntryId,
3290        worktree_id: WorktreeId,
3291    ) -> Option<(usize, usize, usize)> {
3292        let mut worktree_ix = 0;
3293        let mut total_ix = 0;
3294        for (current_worktree_id, visible_worktree_entries, _) in &self.visible_entries {
3295            if worktree_id != *current_worktree_id {
3296                total_ix += visible_worktree_entries.len();
3297                worktree_ix += 1;
3298                continue;
3299            }
3300
3301            return visible_worktree_entries
3302                .iter()
3303                .enumerate()
3304                .find(|(_, entry)| entry.id == entry_id)
3305                .map(|(ix, _)| (worktree_ix, ix, total_ix + ix));
3306        }
3307        None
3308    }
3309
3310    fn entry_at_index(&self, index: usize) -> Option<(WorktreeId, GitEntryRef<'_>)> {
3311        let mut offset = 0;
3312        for (worktree_id, visible_worktree_entries, _) in &self.visible_entries {
3313            let current_len = visible_worktree_entries.len();
3314            if index < offset + current_len {
3315                return visible_worktree_entries
3316                    .get(index - offset)
3317                    .map(|entry| (*worktree_id, entry.to_ref()));
3318            }
3319            offset += current_len;
3320        }
3321        None
3322    }
3323
3324    fn iter_visible_entries(
3325        &self,
3326        range: Range<usize>,
3327        window: &mut Window,
3328        cx: &mut Context<ProjectPanel>,
3329        mut callback: impl FnMut(
3330            &Entry,
3331            usize,
3332            &HashSet<Arc<Path>>,
3333            &mut Window,
3334            &mut Context<ProjectPanel>,
3335        ),
3336    ) {
3337        let mut ix = 0;
3338        for (_, visible_worktree_entries, entries_paths) in &self.visible_entries {
3339            if ix >= range.end {
3340                return;
3341            }
3342
3343            if ix + visible_worktree_entries.len() <= range.start {
3344                ix += visible_worktree_entries.len();
3345                continue;
3346            }
3347
3348            let end_ix = range.end.min(ix + visible_worktree_entries.len());
3349            let entry_range = range.start.saturating_sub(ix)..end_ix - ix;
3350            let entries = entries_paths.get_or_init(|| {
3351                visible_worktree_entries
3352                    .iter()
3353                    .map(|e| (e.path.clone()))
3354                    .collect()
3355            });
3356            let base_index = ix + entry_range.start;
3357            for (i, entry) in visible_worktree_entries[entry_range].iter().enumerate() {
3358                let global_index = base_index + i;
3359                callback(&entry, global_index, entries, window, cx);
3360            }
3361            ix = end_ix;
3362        }
3363    }
3364
3365    fn for_each_visible_entry(
3366        &self,
3367        range: Range<usize>,
3368        window: &mut Window,
3369        cx: &mut Context<ProjectPanel>,
3370        mut callback: impl FnMut(ProjectEntryId, EntryDetails, &mut Window, &mut Context<ProjectPanel>),
3371    ) {
3372        let mut ix = 0;
3373        for (worktree_id, visible_worktree_entries, entries_paths) in &self.visible_entries {
3374            if ix >= range.end {
3375                return;
3376            }
3377
3378            if ix + visible_worktree_entries.len() <= range.start {
3379                ix += visible_worktree_entries.len();
3380                continue;
3381            }
3382
3383            let end_ix = range.end.min(ix + visible_worktree_entries.len());
3384            let git_status_setting = {
3385                let settings = ProjectPanelSettings::get_global(cx);
3386                settings.git_status
3387            };
3388            if let Some(worktree) = self.project.read(cx).worktree_for_id(*worktree_id, cx) {
3389                let snapshot = worktree.read(cx).snapshot();
3390                let root_name = OsStr::new(snapshot.root_name());
3391
3392                let entry_range = range.start.saturating_sub(ix)..end_ix - ix;
3393                let entries = entries_paths.get_or_init(|| {
3394                    visible_worktree_entries
3395                        .iter()
3396                        .map(|e| (e.path.clone()))
3397                        .collect()
3398                });
3399                for entry in visible_worktree_entries[entry_range].iter() {
3400                    let status = git_status_setting
3401                        .then_some(entry.git_summary)
3402                        .unwrap_or_default();
3403
3404                    let mut details = self.details_for_entry(
3405                        entry,
3406                        *worktree_id,
3407                        root_name,
3408                        entries,
3409                        status,
3410                        None,
3411                        window,
3412                        cx,
3413                    );
3414
3415                    if let Some(edit_state) = &self.edit_state {
3416                        let is_edited_entry = if edit_state.is_new_entry() {
3417                            entry.id == NEW_ENTRY_ID
3418                        } else {
3419                            entry.id == edit_state.entry_id
3420                                || self
3421                                    .ancestors
3422                                    .get(&entry.id)
3423                                    .is_some_and(|auto_folded_dirs| {
3424                                        auto_folded_dirs.ancestors.contains(&edit_state.entry_id)
3425                                    })
3426                        };
3427
3428                        if is_edited_entry {
3429                            if let Some(processing_filename) = &edit_state.processing_filename {
3430                                details.is_processing = true;
3431                                if let Some(ancestors) = edit_state
3432                                    .leaf_entry_id
3433                                    .and_then(|entry| self.ancestors.get(&entry))
3434                                {
3435                                    let position = ancestors.ancestors.iter().position(|entry_id| *entry_id == edit_state.entry_id).expect("Edited sub-entry should be an ancestor of selected leaf entry") + 1;
3436                                    let all_components = ancestors.ancestors.len();
3437
3438                                    let prefix_components = all_components - position;
3439                                    let suffix_components = position.checked_sub(1);
3440                                    let mut previous_components =
3441                                        Path::new(&details.filename).components();
3442                                    let mut new_path = previous_components
3443                                        .by_ref()
3444                                        .take(prefix_components)
3445                                        .collect::<PathBuf>();
3446                                    if let Some(last_component) =
3447                                        Path::new(processing_filename).components().next_back()
3448                                    {
3449                                        new_path.push(last_component);
3450                                        previous_components.next();
3451                                    }
3452
3453                                    if let Some(_) = suffix_components {
3454                                        new_path.push(previous_components);
3455                                    }
3456                                    if let Some(str) = new_path.to_str() {
3457                                        details.filename.clear();
3458                                        details.filename.push_str(str);
3459                                    }
3460                                } else {
3461                                    details.filename.clear();
3462                                    details.filename.push_str(processing_filename);
3463                                }
3464                            } else {
3465                                if edit_state.is_new_entry() {
3466                                    details.filename.clear();
3467                                }
3468                                details.is_editing = true;
3469                            }
3470                        }
3471                    }
3472
3473                    callback(entry.id, details, window, cx);
3474                }
3475            }
3476            ix = end_ix;
3477        }
3478    }
3479
3480    fn find_entry_in_worktree(
3481        &self,
3482        worktree_id: WorktreeId,
3483        reverse_search: bool,
3484        only_visible_entries: bool,
3485        predicate: impl Fn(GitEntryRef, WorktreeId) -> bool,
3486        cx: &mut Context<Self>,
3487    ) -> Option<GitEntry> {
3488        if only_visible_entries {
3489            let entries = self
3490                .visible_entries
3491                .iter()
3492                .find_map(|(tree_id, entries, _)| {
3493                    if worktree_id == *tree_id {
3494                        Some(entries)
3495                    } else {
3496                        None
3497                    }
3498                })?
3499                .clone();
3500
3501            return utils::ReversibleIterable::new(entries.iter(), reverse_search)
3502                .find(|ele| predicate(ele.to_ref(), worktree_id))
3503                .cloned();
3504        }
3505
3506        let repo_snapshots = self
3507            .project
3508            .read(cx)
3509            .git_store()
3510            .read(cx)
3511            .repo_snapshots(cx);
3512        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
3513        worktree.read_with(cx, |tree, _| {
3514            utils::ReversibleIterable::new(
3515                GitTraversal::new(&repo_snapshots, tree.entries(true, 0usize)),
3516                reverse_search,
3517            )
3518            .find_single_ended(|ele| predicate(*ele, worktree_id))
3519            .map(|ele| ele.to_owned())
3520        })
3521    }
3522
3523    fn find_entry(
3524        &self,
3525        start: Option<&SelectedEntry>,
3526        reverse_search: bool,
3527        predicate: impl Fn(GitEntryRef, WorktreeId) -> bool,
3528        cx: &mut Context<Self>,
3529    ) -> Option<SelectedEntry> {
3530        let mut worktree_ids: Vec<_> = self
3531            .visible_entries
3532            .iter()
3533            .map(|(worktree_id, _, _)| *worktree_id)
3534            .collect();
3535        let repo_snapshots = self
3536            .project
3537            .read(cx)
3538            .git_store()
3539            .read(cx)
3540            .repo_snapshots(cx);
3541
3542        let mut last_found: Option<SelectedEntry> = None;
3543
3544        if let Some(start) = start {
3545            let worktree = self
3546                .project
3547                .read(cx)
3548                .worktree_for_id(start.worktree_id, cx)?
3549                .read(cx);
3550
3551            let search = {
3552                let entry = worktree.entry_for_id(start.entry_id)?;
3553                let root_entry = worktree.root_entry()?;
3554                let tree_id = worktree.id();
3555
3556                let mut first_iter = GitTraversal::new(
3557                    &repo_snapshots,
3558                    worktree.traverse_from_path(true, true, true, entry.path.as_ref()),
3559                );
3560
3561                if reverse_search {
3562                    first_iter.next();
3563                }
3564
3565                let first = first_iter
3566                    .enumerate()
3567                    .take_until(|(count, entry)| entry.entry == root_entry && *count != 0usize)
3568                    .map(|(_, entry)| entry)
3569                    .find(|ele| predicate(*ele, tree_id))
3570                    .map(|ele| ele.to_owned());
3571
3572                let second_iter =
3573                    GitTraversal::new(&repo_snapshots, worktree.entries(true, 0usize));
3574
3575                let second = if reverse_search {
3576                    second_iter
3577                        .take_until(|ele| ele.id == start.entry_id)
3578                        .filter(|ele| predicate(*ele, tree_id))
3579                        .last()
3580                        .map(|ele| ele.to_owned())
3581                } else {
3582                    second_iter
3583                        .take_while(|ele| ele.id != start.entry_id)
3584                        .filter(|ele| predicate(*ele, tree_id))
3585                        .last()
3586                        .map(|ele| ele.to_owned())
3587                };
3588
3589                if reverse_search {
3590                    Some((second, first))
3591                } else {
3592                    Some((first, second))
3593                }
3594            };
3595
3596            if let Some((first, second)) = search {
3597                let first = first.map(|entry| SelectedEntry {
3598                    worktree_id: start.worktree_id,
3599                    entry_id: entry.id,
3600                });
3601
3602                let second = second.map(|entry| SelectedEntry {
3603                    worktree_id: start.worktree_id,
3604                    entry_id: entry.id,
3605                });
3606
3607                if first.is_some() {
3608                    return first;
3609                }
3610                last_found = second;
3611
3612                let idx = worktree_ids
3613                    .iter()
3614                    .enumerate()
3615                    .find(|(_, ele)| **ele == start.worktree_id)
3616                    .map(|(idx, _)| idx);
3617
3618                if let Some(idx) = idx {
3619                    worktree_ids.rotate_left(idx + 1usize);
3620                    worktree_ids.pop();
3621                }
3622            }
3623        }
3624
3625        for tree_id in worktree_ids.into_iter() {
3626            if let Some(found) =
3627                self.find_entry_in_worktree(tree_id, reverse_search, false, &predicate, cx)
3628            {
3629                return Some(SelectedEntry {
3630                    worktree_id: tree_id,
3631                    entry_id: found.id,
3632                });
3633            }
3634        }
3635
3636        last_found
3637    }
3638
3639    fn find_visible_entry(
3640        &self,
3641        start: Option<&SelectedEntry>,
3642        reverse_search: bool,
3643        predicate: impl Fn(GitEntryRef, WorktreeId) -> bool,
3644        cx: &mut Context<Self>,
3645    ) -> Option<SelectedEntry> {
3646        let mut worktree_ids: Vec<_> = self
3647            .visible_entries
3648            .iter()
3649            .map(|(worktree_id, _, _)| *worktree_id)
3650            .collect();
3651
3652        let mut last_found: Option<SelectedEntry> = None;
3653
3654        if let Some(start) = start {
3655            let entries = self
3656                .visible_entries
3657                .iter()
3658                .find(|(worktree_id, _, _)| *worktree_id == start.worktree_id)
3659                .map(|(_, entries, _)| entries)?;
3660
3661            let mut start_idx = entries
3662                .iter()
3663                .enumerate()
3664                .find(|(_, ele)| ele.id == start.entry_id)
3665                .map(|(idx, _)| idx)?;
3666
3667            if reverse_search {
3668                start_idx = start_idx.saturating_add(1usize);
3669            }
3670
3671            let (left, right) = entries.split_at_checked(start_idx)?;
3672
3673            let (first_iter, second_iter) = if reverse_search {
3674                (
3675                    utils::ReversibleIterable::new(left.iter(), reverse_search),
3676                    utils::ReversibleIterable::new(right.iter(), reverse_search),
3677                )
3678            } else {
3679                (
3680                    utils::ReversibleIterable::new(right.iter(), reverse_search),
3681                    utils::ReversibleIterable::new(left.iter(), reverse_search),
3682                )
3683            };
3684
3685            let first_search = first_iter.find(|ele| predicate(ele.to_ref(), start.worktree_id));
3686            let second_search = second_iter.find(|ele| predicate(ele.to_ref(), start.worktree_id));
3687
3688            if first_search.is_some() {
3689                return first_search.map(|entry| SelectedEntry {
3690                    worktree_id: start.worktree_id,
3691                    entry_id: entry.id,
3692                });
3693            }
3694
3695            last_found = second_search.map(|entry| SelectedEntry {
3696                worktree_id: start.worktree_id,
3697                entry_id: entry.id,
3698            });
3699
3700            let idx = worktree_ids
3701                .iter()
3702                .enumerate()
3703                .find(|(_, ele)| **ele == start.worktree_id)
3704                .map(|(idx, _)| idx);
3705
3706            if let Some(idx) = idx {
3707                worktree_ids.rotate_left(idx + 1usize);
3708                worktree_ids.pop();
3709            }
3710        }
3711
3712        for tree_id in worktree_ids.into_iter() {
3713            if let Some(found) =
3714                self.find_entry_in_worktree(tree_id, reverse_search, true, &predicate, cx)
3715            {
3716                return Some(SelectedEntry {
3717                    worktree_id: tree_id,
3718                    entry_id: found.id,
3719                });
3720            }
3721        }
3722
3723        last_found
3724    }
3725
3726    fn calculate_depth_and_difference(
3727        entry: &Entry,
3728        visible_worktree_entries: &HashSet<Arc<Path>>,
3729    ) -> (usize, usize) {
3730        let (depth, difference) = entry
3731            .path
3732            .ancestors()
3733            .skip(1) // Skip the entry itself
3734            .find_map(|ancestor| {
3735                if let Some(parent_entry) = visible_worktree_entries.get(ancestor) {
3736                    let entry_path_components_count = entry.path.components().count();
3737                    let parent_path_components_count = parent_entry.components().count();
3738                    let difference = entry_path_components_count - parent_path_components_count;
3739                    let depth = parent_entry
3740                        .ancestors()
3741                        .skip(1)
3742                        .filter(|ancestor| visible_worktree_entries.contains(*ancestor))
3743                        .count();
3744                    Some((depth + 1, difference))
3745                } else {
3746                    None
3747                }
3748            })
3749            .unwrap_or_else(|| (0, entry.path.components().count()));
3750
3751        (depth, difference)
3752    }
3753
3754    fn highlight_entry_for_external_drag(
3755        &self,
3756        target_entry: &Entry,
3757        target_worktree: &Worktree,
3758    ) -> Option<ProjectEntryId> {
3759        // Always highlight directory or parent directory if it's file
3760        if target_entry.is_dir() {
3761            Some(target_entry.id)
3762        } else if let Some(parent_entry) = target_entry
3763            .path
3764            .parent()
3765            .and_then(|parent_path| target_worktree.entry_for_path(parent_path))
3766        {
3767            Some(parent_entry.id)
3768        } else {
3769            None
3770        }
3771    }
3772
3773    fn highlight_entry_for_selection_drag(
3774        &self,
3775        target_entry: &Entry,
3776        target_worktree: &Worktree,
3777        drag_state: &DraggedSelection,
3778        cx: &Context<Self>,
3779    ) -> Option<ProjectEntryId> {
3780        let target_parent_path = target_entry.path.parent();
3781
3782        // In case of single item drag, we do not highlight existing
3783        // directory which item belongs too
3784        if drag_state.items().count() == 1 {
3785            let active_entry_path = self
3786                .project
3787                .read(cx)
3788                .path_for_entry(drag_state.active_selection.entry_id, cx)?;
3789
3790            if let Some(active_parent_path) = active_entry_path.path.parent() {
3791                // Do not highlight active entry parent
3792                if active_parent_path == target_entry.path.as_ref() {
3793                    return None;
3794                }
3795
3796                // Do not highlight active entry sibling files
3797                if Some(active_parent_path) == target_parent_path && target_entry.is_file() {
3798                    return None;
3799                }
3800            }
3801        }
3802
3803        // Always highlight directory or parent directory if it's file
3804        if target_entry.is_dir() {
3805            Some(target_entry.id)
3806        } else if let Some(parent_entry) =
3807            target_parent_path.and_then(|parent_path| target_worktree.entry_for_path(parent_path))
3808        {
3809            Some(parent_entry.id)
3810        } else {
3811            None
3812        }
3813    }
3814
3815    fn render_entry(
3816        &self,
3817        entry_id: ProjectEntryId,
3818        details: EntryDetails,
3819        window: &mut Window,
3820        cx: &mut Context<Self>,
3821    ) -> Stateful<Div> {
3822        const GROUP_NAME: &str = "project_entry";
3823
3824        let kind = details.kind;
3825        let is_sticky = details.sticky.is_some();
3826        let sticky_index = details.sticky.as_ref().map(|this| this.sticky_index);
3827        let settings = ProjectPanelSettings::get_global(cx);
3828        let show_editor = details.is_editing && !details.is_processing;
3829
3830        let selection = SelectedEntry {
3831            worktree_id: details.worktree_id,
3832            entry_id,
3833        };
3834
3835        let is_marked = self.marked_entries.contains(&selection);
3836        let is_active = self
3837            .selection
3838            .map_or(false, |selection| selection.entry_id == entry_id);
3839
3840        let file_name = details.filename.clone();
3841
3842        let mut icon = details.icon.clone();
3843        if settings.file_icons && show_editor && details.kind.is_file() {
3844            let filename = self.filename_editor.read(cx).text(cx);
3845            if filename.len() > 2 {
3846                icon = FileIcons::get_icon(Path::new(&filename), cx);
3847            }
3848        }
3849
3850        let filename_text_color = details.filename_text_color;
3851        let diagnostic_severity = details.diagnostic_severity;
3852        let item_colors = get_item_color(cx);
3853
3854        let canonical_path = details
3855            .canonical_path
3856            .as_ref()
3857            .map(|f| f.to_string_lossy().to_string());
3858        let path = details.path.clone();
3859        let path_for_external_paths = path.clone();
3860        let path_for_dragged_selection = path.clone();
3861
3862        let depth = details.depth;
3863        let worktree_id = details.worktree_id;
3864        let selections = Arc::new(self.marked_entries.clone());
3865
3866        let dragged_selection = DraggedSelection {
3867            active_selection: selection,
3868            marked_selections: selections,
3869        };
3870
3871        let bg_color = if is_marked {
3872            item_colors.marked
3873        } else {
3874            item_colors.default
3875        };
3876
3877        let bg_hover_color = if is_marked {
3878            item_colors.marked
3879        } else {
3880            item_colors.hover
3881        };
3882
3883        let validation_color_and_message = if show_editor {
3884            match self
3885                .edit_state
3886                .as_ref()
3887                .map_or(ValidationState::None, |e| e.validation_state.clone())
3888            {
3889                ValidationState::Error(msg) => Some((Color::Error.color(cx), msg.clone())),
3890                ValidationState::Warning(msg) => Some((Color::Warning.color(cx), msg.clone())),
3891                ValidationState::None => None,
3892            }
3893        } else {
3894            None
3895        };
3896
3897        let border_color =
3898            if !self.mouse_down && is_active && self.focus_handle.contains_focused(window, cx) {
3899                match validation_color_and_message {
3900                    Some((color, _)) => color,
3901                    None => item_colors.focused,
3902                }
3903            } else {
3904                bg_color
3905            };
3906
3907        let border_hover_color =
3908            if !self.mouse_down && is_active && self.focus_handle.contains_focused(window, cx) {
3909                match validation_color_and_message {
3910                    Some((color, _)) => color,
3911                    None => item_colors.focused,
3912                }
3913            } else {
3914                bg_hover_color
3915            };
3916
3917        let folded_directory_drag_target = self.folded_directory_drag_target;
3918        let is_highlighted = {
3919            if let Some(highlight_entry_id) = self
3920                .drag_target_entry
3921                .as_ref()
3922                .and_then(|drag_target| drag_target.highlight_entry_id)
3923            {
3924                // Highlight if same entry or it's children
3925                if entry_id == highlight_entry_id {
3926                    true
3927                } else {
3928                    maybe!({
3929                        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
3930                        let highlight_entry = worktree.read(cx).entry_for_id(highlight_entry_id)?;
3931                        Some(path.starts_with(&highlight_entry.path))
3932                    })
3933                    .unwrap_or(false)
3934                }
3935            } else {
3936                false
3937            }
3938        };
3939
3940        let id: ElementId = if is_sticky {
3941            SharedString::from(format!("project_panel_sticky_item_{}", entry_id.to_usize())).into()
3942        } else {
3943            (entry_id.to_proto() as usize).into()
3944        };
3945
3946        div()
3947            .id(id.clone())
3948            .relative()
3949            .group(GROUP_NAME)
3950            .cursor_pointer()
3951            .rounded_none()
3952            .bg(bg_color)
3953            .border_1()
3954            .border_r_2()
3955            .border_color(border_color)
3956            .hover(|style| style.bg(bg_hover_color).border_color(border_hover_color))
3957            .when(is_sticky, |this| {
3958                this.block_mouse_except_scroll()
3959            })
3960            .when(!is_sticky, |this| {
3961                this
3962                .when(is_highlighted && folded_directory_drag_target.is_none(), |this| this.border_color(transparent_white()).bg(item_colors.drag_over))
3963                .on_drag_move::<ExternalPaths>(cx.listener(
3964                    move |this, event: &DragMoveEvent<ExternalPaths>, _, cx| {
3965                        let is_current_target = this.drag_target_entry.as_ref()
3966                             .map(|entry| entry.entry_id) == Some(entry_id);
3967
3968                        if !event.bounds.contains(&event.event.position) {
3969                            // Entry responsible for setting drag target is also responsible to
3970                            // clear it up after drag is out of bounds
3971                            if is_current_target {
3972                                this.drag_target_entry = None;
3973                            }
3974                            return;
3975                        }
3976
3977                        if is_current_target {
3978                            return;
3979                        }
3980
3981                        let Some((entry_id, highlight_entry_id)) = maybe!({
3982                            let target_worktree = this.project.read(cx).worktree_for_id(selection.worktree_id, cx)?.read(cx);
3983                            let target_entry = target_worktree.entry_for_path(&path_for_external_paths)?;
3984                            let highlight_entry_id = this.highlight_entry_for_external_drag(target_entry, target_worktree);
3985                            Some((target_entry.id, highlight_entry_id))
3986                        }) else {
3987                            return;
3988                        };
3989
3990                        this.drag_target_entry = Some(DragTargetEntry {
3991                            entry_id,
3992                            highlight_entry_id,
3993                        });
3994                        this.marked_entries.clear();
3995                    },
3996                ))
3997                .on_drop(cx.listener(
3998                    move |this, external_paths: &ExternalPaths, window, cx| {
3999                        this.drag_target_entry = None;
4000                        this.hover_scroll_task.take();
4001                        this.drop_external_files(external_paths.paths(), entry_id, window, cx);
4002                        cx.stop_propagation();
4003                    },
4004                ))
4005                .on_drag_move::<DraggedSelection>(cx.listener(
4006                    move |this, event: &DragMoveEvent<DraggedSelection>, window, cx| {
4007                        let is_current_target = this.drag_target_entry.as_ref()
4008                             .map(|entry| entry.entry_id) == Some(entry_id);
4009
4010                        if !event.bounds.contains(&event.event.position) {
4011                            // Entry responsible for setting drag target is also responsible to
4012                            // clear it up after drag is out of bounds
4013                            if is_current_target {
4014                                this.drag_target_entry = None;
4015                            }
4016                            return;
4017                        }
4018
4019                        if is_current_target {
4020                            return;
4021                        }
4022
4023                        let drag_state = event.drag(cx);
4024                        let Some((entry_id, highlight_entry_id)) = maybe!({
4025                            let target_worktree = this.project.read(cx).worktree_for_id(selection.worktree_id, cx)?.read(cx);
4026                            let target_entry = target_worktree.entry_for_path(&path_for_dragged_selection)?;
4027                            let highlight_entry_id = this.highlight_entry_for_selection_drag(target_entry, target_worktree, drag_state, cx);
4028                            Some((target_entry.id, highlight_entry_id))
4029                        }) else {
4030                            return;
4031                        };
4032
4033                        this.drag_target_entry = Some(DragTargetEntry {
4034                            entry_id,
4035                            highlight_entry_id,
4036                        });
4037                        if drag_state.items().count() == 1 {
4038                            this.marked_entries.clear();
4039                            this.marked_entries.insert(drag_state.active_selection);
4040                        }
4041                        this.hover_expand_task.take();
4042
4043                        if !kind.is_dir()
4044                            || this
4045                                .expanded_dir_ids
4046                                .get(&details.worktree_id)
4047                                .map_or(false, |ids| ids.binary_search(&entry_id).is_ok())
4048                        {
4049                            return;
4050                        }
4051
4052                        let bounds = event.bounds;
4053                        this.hover_expand_task =
4054                            Some(cx.spawn_in(window, async move |this, cx| {
4055                                cx.background_executor()
4056                                    .timer(Duration::from_millis(500))
4057                                    .await;
4058                                this.update_in(cx, |this, window, cx| {
4059                                    this.hover_expand_task.take();
4060                                    if this.drag_target_entry.as_ref().map(|entry| entry.entry_id) == Some(entry_id)
4061                                        && bounds.contains(&window.mouse_position())
4062                                    {
4063                                        this.expand_entry(worktree_id, entry_id, cx);
4064                                        this.update_visible_entries(
4065                                            Some((worktree_id, entry_id)),
4066                                            cx,
4067                                        );
4068                                        cx.notify();
4069                                    }
4070                                })
4071                                .ok();
4072                            }));
4073                    },
4074                ))
4075                .on_drag(
4076                    dragged_selection,
4077                    move |selection, click_offset, _window, cx| {
4078                        cx.new(|_| DraggedProjectEntryView {
4079                            details: details.clone(),
4080                            click_offset,
4081                            selection: selection.active_selection,
4082                            selections: selection.marked_selections.clone(),
4083                        })
4084                    },
4085                )
4086                .on_drop(
4087                    cx.listener(move |this, selections: &DraggedSelection, window, cx| {
4088                        this.drag_target_entry = None;
4089                        this.hover_scroll_task.take();
4090                        this.hover_expand_task.take();
4091                        if  folded_directory_drag_target.is_some() {
4092                            return;
4093                        }
4094                        this.drag_onto(selections, entry_id, kind.is_file(), window, cx);
4095                    }),
4096                )
4097            })
4098            .on_mouse_down(
4099                MouseButton::Left,
4100                cx.listener(move |this, _, _, cx| {
4101                    this.mouse_down = true;
4102                    cx.propagate();
4103                }),
4104            )
4105            .on_click(
4106                cx.listener(move |this, event: &gpui::ClickEvent, window, cx| {
4107                    if event.down.button == MouseButton::Right
4108                        || event.down.first_mouse
4109                        || show_editor
4110                    {
4111                        return;
4112                    }
4113                    if event.down.button == MouseButton::Left {
4114                        this.mouse_down = false;
4115                    }
4116                    cx.stop_propagation();
4117
4118                    if let Some(selection) = this.selection.filter(|_| event.modifiers().shift) {
4119                        let current_selection = this.index_for_selection(selection);
4120                        let clicked_entry = SelectedEntry {
4121                            entry_id,
4122                            worktree_id,
4123                        };
4124                        let target_selection = this.index_for_selection(clicked_entry);
4125                        if let Some(((_, _, source_index), (_, _, target_index))) =
4126                            current_selection.zip(target_selection)
4127                        {
4128                            let range_start = source_index.min(target_index);
4129                            let range_end = source_index.max(target_index) + 1;
4130                            let mut new_selections = BTreeSet::new();
4131                            this.for_each_visible_entry(
4132                                range_start..range_end,
4133                                window,
4134                                cx,
4135                                |entry_id, details, _, _| {
4136                                    new_selections.insert(SelectedEntry {
4137                                        entry_id,
4138                                        worktree_id: details.worktree_id,
4139                                    });
4140                                },
4141                            );
4142
4143                            this.marked_entries = this
4144                                .marked_entries
4145                                .union(&new_selections)
4146                                .cloned()
4147                                .collect();
4148
4149                            this.selection = Some(clicked_entry);
4150                            this.marked_entries.insert(clicked_entry);
4151                        }
4152                    } else if event.modifiers().secondary() {
4153                        if event.down.click_count > 1 {
4154                            this.split_entry(entry_id, cx);
4155                        } else {
4156                            this.selection = Some(selection);
4157                            if !this.marked_entries.insert(selection) {
4158                                this.marked_entries.remove(&selection);
4159                            }
4160                        }
4161                    } else if kind.is_dir() {
4162                        this.marked_entries.clear();
4163                        if is_sticky {
4164                            if let Some((_, _, index)) = this.index_for_entry(entry_id, worktree_id) {
4165                                let strategy = sticky_index
4166                                    .map(ScrollStrategy::ToPosition)
4167                                    .unwrap_or(ScrollStrategy::Top);
4168                                this.scroll_handle.scroll_to_item(index, strategy);
4169                                cx.notify();
4170                                // move down by 1px so that clicked item
4171                                // don't count as sticky anymore
4172                                cx.on_next_frame(window, |_, window, cx| {
4173                                    cx.on_next_frame(window, |this, _, cx| {
4174                                        let mut offset = this.scroll_handle.offset();
4175                                        offset.y += px(1.);
4176                                        this.scroll_handle.set_offset(offset);
4177                                        cx.notify();
4178                                    });
4179                                });
4180                                return;
4181                            }
4182                        }
4183                        if event.modifiers().alt {
4184                            this.toggle_expand_all(entry_id, window, cx);
4185                        } else {
4186                            this.toggle_expanded(entry_id, window, cx);
4187                        }
4188                    } else {
4189                        let preview_tabs_enabled = PreviewTabsSettings::get_global(cx).enabled;
4190                        let click_count = event.up.click_count;
4191                        let focus_opened_item = !preview_tabs_enabled || click_count > 1;
4192                        let allow_preview = preview_tabs_enabled && click_count == 1;
4193                        this.open_entry(entry_id, focus_opened_item, allow_preview, cx);
4194                    }
4195                }),
4196            )
4197            .child(
4198                ListItem::new(id)
4199                    .indent_level(depth)
4200                    .indent_step_size(px(settings.indent_size))
4201                    .spacing(match settings.entry_spacing {
4202                        project_panel_settings::EntrySpacing::Comfortable => ListItemSpacing::Dense,
4203                        project_panel_settings::EntrySpacing::Standard => {
4204                            ListItemSpacing::ExtraDense
4205                        }
4206                    })
4207                    .selectable(false)
4208                    .when_some(canonical_path, |this, path| {
4209                        this.end_slot::<AnyElement>(
4210                            div()
4211                                .id("symlink_icon")
4212                                .pr_3()
4213                                .tooltip(move |window, cx| {
4214                                    Tooltip::with_meta(
4215                                        path.to_string(),
4216                                        None,
4217                                        "Symbolic Link",
4218                                        window,
4219                                        cx,
4220                                    )
4221                                })
4222                                .child(
4223                                    Icon::new(IconName::ArrowUpRight)
4224                                        .size(IconSize::Indicator)
4225                                        .color(filename_text_color),
4226                                )
4227                                .into_any_element(),
4228                        )
4229                    })
4230                    .child(if let Some(icon) = &icon {
4231                        if let Some((_, decoration_color)) =
4232                            entry_diagnostic_aware_icon_decoration_and_color(diagnostic_severity)
4233                        {
4234                            let is_warning = diagnostic_severity
4235                                .map(|severity| matches!(severity, DiagnosticSeverity::WARNING))
4236                                .unwrap_or(false);
4237                            div().child(
4238                                DecoratedIcon::new(
4239                                    Icon::from_path(icon.clone()).color(Color::Muted),
4240                                    Some(
4241                                        IconDecoration::new(
4242                                            if kind.is_file() {
4243                                                if is_warning {
4244                                                    IconDecorationKind::Triangle
4245                                                } else {
4246                                                    IconDecorationKind::X
4247                                                }
4248                                            } else {
4249                                                IconDecorationKind::Dot
4250                                            },
4251                                            bg_color,
4252                                            cx,
4253                                        )
4254                                        .group_name(Some(GROUP_NAME.into()))
4255                                        .knockout_hover_color(bg_hover_color)
4256                                        .color(decoration_color.color(cx))
4257                                        .position(Point {
4258                                            x: px(-2.),
4259                                            y: px(-2.),
4260                                        }),
4261                                    ),
4262                                )
4263                                .into_any_element(),
4264                            )
4265                        } else {
4266                            h_flex().child(Icon::from_path(icon.to_string()).color(Color::Muted))
4267                        }
4268                    } else {
4269                        if let Some((icon_name, color)) =
4270                            entry_diagnostic_aware_icon_name_and_color(diagnostic_severity)
4271                        {
4272                            h_flex()
4273                                .size(IconSize::default().rems())
4274                                .child(Icon::new(icon_name).color(color).size(IconSize::Small))
4275                        } else {
4276                            h_flex()
4277                                .size(IconSize::default().rems())
4278                                .invisible()
4279                                .flex_none()
4280                        }
4281                    })
4282                    .child(
4283                        if let (Some(editor), true) = (Some(&self.filename_editor), show_editor) {
4284                            h_flex().h_6().w_full().child(editor.clone())
4285                        } else {
4286                            h_flex().h_6().map(|mut this| {
4287                                if let Some(folded_ancestors) = self.ancestors.get(&entry_id) {
4288                                    let components = Path::new(&file_name)
4289                                        .components()
4290                                        .map(|comp| {
4291                                            let comp_str =
4292                                                comp.as_os_str().to_string_lossy().into_owned();
4293                                            comp_str
4294                                        })
4295                                        .collect::<Vec<_>>();
4296
4297                                    let components_len = components.len();
4298                                    // TODO this can underflow
4299                                    let active_index = components_len
4300                                        - 1
4301                                        - folded_ancestors.current_ancestor_depth;
4302                                        const DELIMITER: SharedString =
4303                                        SharedString::new_static(std::path::MAIN_SEPARATOR_STR);
4304                                    for (index, component) in components.into_iter().enumerate() {
4305                                        if index != 0 {
4306                                                let delimiter_target_index = index - 1;
4307                                                let target_entry_id = folded_ancestors.ancestors.get(components_len - 1 - delimiter_target_index).cloned();
4308                                                this = this.child(
4309                                                    div()
4310                                                    .when(!is_sticky, |div| {
4311                                                        div
4312                                                            .on_drop(cx.listener(move |this, selections: &DraggedSelection, window, cx| {
4313                                                            this.hover_scroll_task.take();
4314                                                            this.drag_target_entry = None;
4315                                                            this.folded_directory_drag_target = None;
4316                                                            if let Some(target_entry_id) = target_entry_id {
4317                                                                this.drag_onto(selections, target_entry_id, kind.is_file(), window, cx);
4318                                                            }
4319                                                        }))
4320                                                        .on_drag_move(cx.listener(
4321                                                            move |this, event: &DragMoveEvent<DraggedSelection>, _, _| {
4322                                                                if event.bounds.contains(&event.event.position) {
4323                                                                    this.folded_directory_drag_target = Some(
4324                                                                        FoldedDirectoryDragTarget {
4325                                                                            entry_id,
4326                                                                            index: delimiter_target_index,
4327                                                                            is_delimiter_target: true,
4328                                                                        }
4329                                                                    );
4330                                                                } else {
4331                                                                    let is_current_target = this.folded_directory_drag_target
4332                                                                        .map_or(false, |target|
4333                                                                            target.entry_id == entry_id &&
4334                                                                            target.index == delimiter_target_index &&
4335                                                                            target.is_delimiter_target
4336                                                                        );
4337                                                                    if is_current_target {
4338                                                                        this.folded_directory_drag_target = None;
4339                                                                    }
4340                                                                }
4341
4342                                                            },
4343                                                        ))
4344                                                    })
4345                                                    .child(
4346                                                        Label::new(DELIMITER.clone())
4347                                                            .single_line()
4348                                                            .color(filename_text_color)
4349                                                    )
4350                                                );
4351                                        }
4352                                        let id = SharedString::from(format!(
4353                                            "project_panel_path_component_{}_{index}",
4354                                            entry_id.to_usize()
4355                                        ));
4356                                        let label = div()
4357                                            .id(id)
4358                                            .when(!is_sticky,| div| {
4359                                                div
4360                                                .when(index != components_len - 1, |div|{
4361                                                    let target_entry_id = folded_ancestors.ancestors.get(components_len - 1 - index).cloned();
4362                                                    div
4363                                                    .on_drag_move(cx.listener(
4364                                                        move |this, event: &DragMoveEvent<DraggedSelection>, _, _| {
4365                                                        if event.bounds.contains(&event.event.position) {
4366                                                                this.folded_directory_drag_target = Some(
4367                                                                    FoldedDirectoryDragTarget {
4368                                                                        entry_id,
4369                                                                        index,
4370                                                                        is_delimiter_target: false,
4371                                                                    }
4372                                                                );
4373                                                            } else {
4374                                                                let is_current_target = this.folded_directory_drag_target
4375                                                                    .as_ref()
4376                                                                    .map_or(false, |target|
4377                                                                        target.entry_id == entry_id &&
4378                                                                        target.index == index &&
4379                                                                        !target.is_delimiter_target
4380                                                                    );
4381                                                                if is_current_target {
4382                                                                    this.folded_directory_drag_target = None;
4383                                                                }
4384                                                            }
4385                                                        },
4386                                                    ))
4387                                                    .on_drop(cx.listener(move |this, selections: &DraggedSelection, window,cx| {
4388                                                        this.hover_scroll_task.take();
4389                                                        this.drag_target_entry = None;
4390                                                        this.folded_directory_drag_target = None;
4391                                                        if let Some(target_entry_id) = target_entry_id {
4392                                                            this.drag_onto(selections, target_entry_id, kind.is_file(), window, cx);
4393                                                        }
4394                                                    }))
4395                                                    .when(folded_directory_drag_target.map_or(false, |target|
4396                                                        target.entry_id == entry_id &&
4397                                                        target.index == index
4398                                                    ), |this| {
4399                                                        this.bg(item_colors.drag_over)
4400                                                    })
4401                                                })
4402                                            })
4403                                            .on_click(cx.listener(move |this, _, _, cx| {
4404                                                if index != active_index {
4405                                                    if let Some(folds) =
4406                                                        this.ancestors.get_mut(&entry_id)
4407                                                    {
4408                                                        folds.current_ancestor_depth =
4409                                                            components_len - 1 - index;
4410                                                        cx.notify();
4411                                                    }
4412                                                }
4413                                            }))
4414                                            .child(
4415                                                Label::new(component)
4416                                                    .single_line()
4417                                                    .color(filename_text_color)
4418                                                    .when(
4419                                                        index == active_index
4420                                                            && (is_active || is_marked),
4421                                                        |this| this.underline(),
4422                                                    ),
4423                                            );
4424
4425                                        this = this.child(label);
4426                                    }
4427
4428                                    this
4429                                } else {
4430                                    this.child(
4431                                        Label::new(file_name)
4432                                            .single_line()
4433                                            .color(filename_text_color),
4434                                    )
4435                                }
4436                            })
4437                        },
4438                    )
4439                    .on_secondary_mouse_down(cx.listener(
4440                        move |this, event: &MouseDownEvent, window, cx| {
4441                            // Stop propagation to prevent the catch-all context menu for the project
4442                            // panel from being deployed.
4443                            cx.stop_propagation();
4444                            // Some context menu actions apply to all marked entries. If the user
4445                            // right-clicks on an entry that is not marked, they may not realize the
4446                            // action applies to multiple entries. To avoid inadvertent changes, all
4447                            // entries are unmarked.
4448                            if !this.marked_entries.contains(&selection) {
4449                                this.marked_entries.clear();
4450                            }
4451                            this.deploy_context_menu(event.position, entry_id, window, cx);
4452                        },
4453                    ))
4454                    .overflow_x(),
4455            )
4456            .when_some(
4457                validation_color_and_message,
4458                |this, (color, message)| {
4459                    this
4460                    .relative()
4461                    .child(
4462                        deferred(
4463                            div()
4464                            .occlude()
4465                            .absolute()
4466                            .top_full()
4467                            .left(px(-1.)) // Used px over rem so that it doesn't change with font size
4468                            .right(px(-0.5))
4469                            .py_1()
4470                            .px_2()
4471                            .border_1()
4472                            .border_color(color)
4473                            .bg(cx.theme().colors().background)
4474                            .child(
4475                                Label::new(message)
4476                                .color(Color::from(color))
4477                                .size(LabelSize::Small)
4478                            )
4479                        )
4480                    )
4481                }
4482            )
4483    }
4484
4485    fn details_for_entry(
4486        &self,
4487        entry: &Entry,
4488        worktree_id: WorktreeId,
4489        root_name: &OsStr,
4490        entries_paths: &HashSet<Arc<Path>>,
4491        git_status: GitSummary,
4492        sticky: Option<StickyDetails>,
4493        _window: &mut Window,
4494        cx: &mut Context<Self>,
4495    ) -> EntryDetails {
4496        let (show_file_icons, show_folder_icons) = {
4497            let settings = ProjectPanelSettings::get_global(cx);
4498            (settings.file_icons, settings.folder_icons)
4499        };
4500
4501        let expanded_entry_ids = self
4502            .expanded_dir_ids
4503            .get(&worktree_id)
4504            .map(Vec::as_slice)
4505            .unwrap_or(&[]);
4506        let is_expanded = expanded_entry_ids.binary_search(&entry.id).is_ok();
4507
4508        let icon = match entry.kind {
4509            EntryKind::File => {
4510                if show_file_icons {
4511                    FileIcons::get_icon(&entry.path, cx)
4512                } else {
4513                    None
4514                }
4515            }
4516            _ => {
4517                if show_folder_icons {
4518                    FileIcons::get_folder_icon(is_expanded, cx)
4519                } else {
4520                    FileIcons::get_chevron_icon(is_expanded, cx)
4521                }
4522            }
4523        };
4524
4525        let (depth, difference) =
4526            ProjectPanel::calculate_depth_and_difference(&entry, entries_paths);
4527
4528        let filename = match difference {
4529            diff if diff > 1 => entry
4530                .path
4531                .iter()
4532                .skip(entry.path.components().count() - diff)
4533                .collect::<PathBuf>()
4534                .to_str()
4535                .unwrap_or_default()
4536                .to_string(),
4537            _ => entry
4538                .path
4539                .file_name()
4540                .map(|name| name.to_string_lossy().into_owned())
4541                .unwrap_or_else(|| root_name.to_string_lossy().to_string()),
4542        };
4543
4544        let selection = SelectedEntry {
4545            worktree_id,
4546            entry_id: entry.id,
4547        };
4548        let is_marked = self.marked_entries.contains(&selection);
4549        let is_selected = self.selection == Some(selection);
4550
4551        let diagnostic_severity = self
4552            .diagnostics
4553            .get(&(worktree_id, entry.path.to_path_buf()))
4554            .cloned();
4555
4556        let filename_text_color =
4557            entry_git_aware_label_color(git_status, entry.is_ignored, is_marked);
4558
4559        let is_cut = self
4560            .clipboard
4561            .as_ref()
4562            .map_or(false, |e| e.is_cut() && e.items().contains(&selection));
4563
4564        EntryDetails {
4565            filename,
4566            icon,
4567            path: entry.path.clone(),
4568            depth,
4569            kind: entry.kind,
4570            is_ignored: entry.is_ignored,
4571            is_expanded,
4572            is_selected,
4573            is_marked,
4574            is_editing: false,
4575            is_processing: false,
4576            is_cut,
4577            sticky,
4578            filename_text_color,
4579            diagnostic_severity,
4580            git_status,
4581            is_private: entry.is_private,
4582            worktree_id,
4583            canonical_path: entry.canonical_path.clone(),
4584        }
4585    }
4586
4587    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
4588        if !Self::should_show_scrollbar(cx)
4589            || !(self.show_scrollbar || self.vertical_scrollbar_state.is_dragging())
4590        {
4591            return None;
4592        }
4593        Some(
4594            div()
4595                .occlude()
4596                .id("project-panel-vertical-scroll")
4597                .on_mouse_move(cx.listener(|_, _, _, cx| {
4598                    cx.notify();
4599                    cx.stop_propagation()
4600                }))
4601                .on_hover(|_, _, cx| {
4602                    cx.stop_propagation();
4603                })
4604                .on_any_mouse_down(|_, _, cx| {
4605                    cx.stop_propagation();
4606                })
4607                .on_mouse_up(
4608                    MouseButton::Left,
4609                    cx.listener(|this, _, window, cx| {
4610                        if !this.vertical_scrollbar_state.is_dragging()
4611                            && !this.focus_handle.contains_focused(window, cx)
4612                        {
4613                            this.hide_scrollbar(window, cx);
4614                            cx.notify();
4615                        }
4616
4617                        cx.stop_propagation();
4618                    }),
4619                )
4620                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
4621                    cx.notify();
4622                }))
4623                .h_full()
4624                .absolute()
4625                .right_1()
4626                .top_1()
4627                .bottom_1()
4628                .w(px(12.))
4629                .cursor_default()
4630                .children(Scrollbar::vertical(
4631                    // percentage as f32..end_offset as f32,
4632                    self.vertical_scrollbar_state.clone(),
4633                )),
4634        )
4635    }
4636
4637    fn render_horizontal_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
4638        if !Self::should_show_scrollbar(cx)
4639            || !(self.show_scrollbar || self.horizontal_scrollbar_state.is_dragging())
4640        {
4641            return None;
4642        }
4643        Scrollbar::horizontal(self.horizontal_scrollbar_state.clone()).map(|scrollbar| {
4644            div()
4645                .occlude()
4646                .id("project-panel-horizontal-scroll")
4647                .on_mouse_move(cx.listener(|_, _, _, cx| {
4648                    cx.notify();
4649                    cx.stop_propagation()
4650                }))
4651                .on_hover(|_, _, cx| {
4652                    cx.stop_propagation();
4653                })
4654                .on_any_mouse_down(|_, _, cx| {
4655                    cx.stop_propagation();
4656                })
4657                .on_mouse_up(
4658                    MouseButton::Left,
4659                    cx.listener(|this, _, window, cx| {
4660                        if !this.horizontal_scrollbar_state.is_dragging()
4661                            && !this.focus_handle.contains_focused(window, cx)
4662                        {
4663                            this.hide_scrollbar(window, cx);
4664                            cx.notify();
4665                        }
4666
4667                        cx.stop_propagation();
4668                    }),
4669                )
4670                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
4671                    cx.notify();
4672                }))
4673                .w_full()
4674                .absolute()
4675                .right_1()
4676                .left_1()
4677                .bottom_1()
4678                .h(px(12.))
4679                .cursor_default()
4680                .child(scrollbar)
4681        })
4682    }
4683
4684    fn dispatch_context(&self, window: &Window, cx: &Context<Self>) -> KeyContext {
4685        let mut dispatch_context = KeyContext::new_with_defaults();
4686        dispatch_context.add("ProjectPanel");
4687        dispatch_context.add("menu");
4688
4689        let identifier = if self.filename_editor.focus_handle(cx).is_focused(window) {
4690            "editing"
4691        } else {
4692            "not_editing"
4693        };
4694
4695        dispatch_context.add(identifier);
4696        dispatch_context
4697    }
4698
4699    fn should_show_scrollbar(cx: &App) -> bool {
4700        let show = ProjectPanelSettings::get_global(cx)
4701            .scrollbar
4702            .show
4703            .unwrap_or_else(|| EditorSettings::get_global(cx).scrollbar.show);
4704        match show {
4705            ShowScrollbar::Auto => true,
4706            ShowScrollbar::System => true,
4707            ShowScrollbar::Always => true,
4708            ShowScrollbar::Never => false,
4709        }
4710    }
4711
4712    fn should_autohide_scrollbar(cx: &App) -> bool {
4713        let show = ProjectPanelSettings::get_global(cx)
4714            .scrollbar
4715            .show
4716            .unwrap_or_else(|| EditorSettings::get_global(cx).scrollbar.show);
4717        match show {
4718            ShowScrollbar::Auto => true,
4719            ShowScrollbar::System => cx
4720                .try_global::<ScrollbarAutoHide>()
4721                .map_or_else(|| cx.should_auto_hide_scrollbars(), |autohide| autohide.0),
4722            ShowScrollbar::Always => false,
4723            ShowScrollbar::Never => true,
4724        }
4725    }
4726
4727    fn hide_scrollbar(&mut self, window: &mut Window, cx: &mut Context<Self>) {
4728        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
4729        if !Self::should_autohide_scrollbar(cx) {
4730            return;
4731        }
4732        self.hide_scrollbar_task = Some(cx.spawn_in(window, async move |panel, cx| {
4733            cx.background_executor()
4734                .timer(SCROLLBAR_SHOW_INTERVAL)
4735                .await;
4736            panel
4737                .update(cx, |panel, cx| {
4738                    panel.show_scrollbar = false;
4739                    cx.notify();
4740                })
4741                .log_err();
4742        }))
4743    }
4744
4745    fn reveal_entry(
4746        &mut self,
4747        project: Entity<Project>,
4748        entry_id: ProjectEntryId,
4749        skip_ignored: bool,
4750        cx: &mut Context<Self>,
4751    ) -> Result<()> {
4752        let worktree = project
4753            .read(cx)
4754            .worktree_for_entry(entry_id, cx)
4755            .context("can't reveal a non-existent entry in the project panel")?;
4756        let worktree = worktree.read(cx);
4757        if skip_ignored
4758            && worktree
4759                .entry_for_id(entry_id)
4760                .map_or(true, |entry| entry.is_ignored && !entry.is_always_included)
4761        {
4762            anyhow::bail!("can't reveal an ignored entry in the project panel");
4763        }
4764
4765        let worktree_id = worktree.id();
4766        self.expand_entry(worktree_id, entry_id, cx);
4767        self.update_visible_entries(Some((worktree_id, entry_id)), cx);
4768        self.marked_entries.clear();
4769        self.marked_entries.insert(SelectedEntry {
4770            worktree_id,
4771            entry_id,
4772        });
4773        self.autoscroll(cx);
4774        cx.notify();
4775        Ok(())
4776    }
4777
4778    fn find_active_indent_guide(
4779        &self,
4780        indent_guides: &[IndentGuideLayout],
4781        cx: &App,
4782    ) -> Option<usize> {
4783        let (worktree, entry) = self.selected_entry(cx)?;
4784
4785        // Find the parent entry of the indent guide, this will either be the
4786        // expanded folder we have selected, or the parent of the currently
4787        // selected file/collapsed directory
4788        let mut entry = entry;
4789        loop {
4790            let is_expanded_dir = entry.is_dir()
4791                && self
4792                    .expanded_dir_ids
4793                    .get(&worktree.id())
4794                    .map(|ids| ids.binary_search(&entry.id).is_ok())
4795                    .unwrap_or(false);
4796            if is_expanded_dir {
4797                break;
4798            }
4799            entry = worktree.entry_for_path(&entry.path.parent()?)?;
4800        }
4801
4802        let (active_indent_range, depth) = {
4803            let (worktree_ix, child_offset, ix) = self.index_for_entry(entry.id, worktree.id())?;
4804            let child_paths = &self.visible_entries[worktree_ix].1;
4805            let mut child_count = 0;
4806            let depth = entry.path.ancestors().count();
4807            while let Some(entry) = child_paths.get(child_offset + child_count + 1) {
4808                if entry.path.ancestors().count() <= depth {
4809                    break;
4810                }
4811                child_count += 1;
4812            }
4813
4814            let start = ix + 1;
4815            let end = start + child_count;
4816
4817            let (_, entries, paths) = &self.visible_entries[worktree_ix];
4818            let visible_worktree_entries =
4819                paths.get_or_init(|| entries.iter().map(|e| (e.path.clone())).collect());
4820
4821            // Calculate the actual depth of the entry, taking into account that directories can be auto-folded.
4822            let (depth, _) = Self::calculate_depth_and_difference(entry, visible_worktree_entries);
4823            (start..end, depth)
4824        };
4825
4826        let candidates = indent_guides
4827            .iter()
4828            .enumerate()
4829            .filter(|(_, indent_guide)| indent_guide.offset.x == depth);
4830
4831        for (i, indent) in candidates {
4832            // Find matches that are either an exact match, partially on screen, or inside the enclosing indent
4833            if active_indent_range.start <= indent.offset.y + indent.length
4834                && indent.offset.y <= active_indent_range.end
4835            {
4836                return Some(i);
4837            }
4838        }
4839        None
4840    }
4841
4842    fn render_sticky_entries(
4843        &self,
4844        child: StickyProjectPanelCandidate,
4845        window: &mut Window,
4846        cx: &mut Context<Self>,
4847    ) -> SmallVec<[AnyElement; 8]> {
4848        let project = self.project.read(cx);
4849
4850        let Some((worktree_id, entry_ref)) = self.entry_at_index(child.index) else {
4851            return SmallVec::new();
4852        };
4853
4854        let Some((_, visible_worktree_entries, entries_paths)) = self
4855            .visible_entries
4856            .iter()
4857            .find(|(id, _, _)| *id == worktree_id)
4858        else {
4859            return SmallVec::new();
4860        };
4861
4862        let Some(worktree) = project.worktree_for_id(worktree_id, cx) else {
4863            return SmallVec::new();
4864        };
4865        let worktree = worktree.read(cx).snapshot();
4866
4867        let paths = entries_paths.get_or_init(|| {
4868            visible_worktree_entries
4869                .iter()
4870                .map(|e| e.path.clone())
4871                .collect()
4872        });
4873
4874        let mut sticky_parents = Vec::new();
4875        let mut current_path = entry_ref.path.clone();
4876
4877        'outer: loop {
4878            if let Some(parent_path) = current_path.parent() {
4879                for ancestor_path in parent_path.ancestors() {
4880                    if paths.contains(ancestor_path) {
4881                        if let Some(parent_entry) = worktree.entry_for_path(ancestor_path) {
4882                            sticky_parents.push(parent_entry.clone());
4883                            current_path = parent_entry.path.clone();
4884                            continue 'outer;
4885                        }
4886                    }
4887                }
4888            }
4889            break 'outer;
4890        }
4891
4892        if sticky_parents.is_empty() {
4893            return SmallVec::new();
4894        }
4895
4896        sticky_parents.reverse();
4897
4898        let git_status_enabled = ProjectPanelSettings::get_global(cx).git_status;
4899        let root_name = OsStr::new(worktree.root_name());
4900
4901        let git_summaries_by_id = if git_status_enabled {
4902            visible_worktree_entries
4903                .iter()
4904                .map(|e| (e.id, e.git_summary))
4905                .collect::<HashMap<_, _>>()
4906        } else {
4907            Default::default()
4908        };
4909
4910        // already checked if non empty above
4911        let last_item_index = sticky_parents.len() - 1;
4912        sticky_parents
4913            .iter()
4914            .enumerate()
4915            .map(|(index, entry)| {
4916                let git_status = git_summaries_by_id
4917                    .get(&entry.id)
4918                    .copied()
4919                    .unwrap_or_default();
4920                let sticky_details = Some(StickyDetails {
4921                    sticky_index: index,
4922                });
4923                let details = self.details_for_entry(
4924                    entry,
4925                    worktree_id,
4926                    root_name,
4927                    paths,
4928                    git_status,
4929                    sticky_details,
4930                    window,
4931                    cx,
4932                );
4933                self.render_entry(entry.id, details, window, cx)
4934                    .when(index == last_item_index, |this| {
4935                        let shadow_color_top = hsla(0.0, 0.0, 0.0, 0.1);
4936                        let shadow_color_bottom = hsla(0.0, 0.0, 0.0, 0.);
4937                        let sticky_shadow = div()
4938                            .absolute()
4939                            .left_0()
4940                            .bottom_neg_1p5()
4941                            .h_1p5()
4942                            .w_full()
4943                            .bg(linear_gradient(
4944                                0.,
4945                                linear_color_stop(shadow_color_top, 1.),
4946                                linear_color_stop(shadow_color_bottom, 0.),
4947                            ));
4948                        this.child(sticky_shadow)
4949                    })
4950                    .into_any()
4951            })
4952            .collect()
4953    }
4954}
4955
4956#[derive(Clone)]
4957struct StickyProjectPanelCandidate {
4958    index: usize,
4959    depth: usize,
4960}
4961
4962impl StickyCandidate for StickyProjectPanelCandidate {
4963    fn depth(&self) -> usize {
4964        self.depth
4965    }
4966}
4967
4968fn item_width_estimate(depth: usize, item_text_chars: usize, is_symlink: bool) -> usize {
4969    const ICON_SIZE_FACTOR: usize = 2;
4970    let mut item_width = depth * ICON_SIZE_FACTOR + item_text_chars;
4971    if is_symlink {
4972        item_width += ICON_SIZE_FACTOR;
4973    }
4974    item_width
4975}
4976
4977impl Render for ProjectPanel {
4978    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
4979        let has_worktree = !self.visible_entries.is_empty();
4980        let project = self.project.read(cx);
4981        let indent_size = ProjectPanelSettings::get_global(cx).indent_size;
4982        let show_indent_guides =
4983            ProjectPanelSettings::get_global(cx).indent_guides.show == ShowIndentGuides::Always;
4984        let show_sticky_entries = {
4985            if ProjectPanelSettings::get_global(cx).sticky_scroll {
4986                let is_scrollable = self.scroll_handle.is_scrollable();
4987                let is_scrolled = self.scroll_handle.offset().y < px(0.);
4988                is_scrollable && is_scrolled
4989            } else {
4990                false
4991            }
4992        };
4993
4994        let is_local = project.is_local();
4995
4996        if has_worktree {
4997            let item_count = self
4998                .visible_entries
4999                .iter()
5000                .map(|(_, worktree_entries, _)| worktree_entries.len())
5001                .sum();
5002
5003            fn handle_drag_move<T: 'static>(
5004                this: &mut ProjectPanel,
5005                e: &DragMoveEvent<T>,
5006                window: &mut Window,
5007                cx: &mut Context<ProjectPanel>,
5008            ) {
5009                if let Some(previous_position) = this.previous_drag_position {
5010                    // Refresh cursor only when an actual drag happens,
5011                    // because modifiers are not updated when the cursor is not moved.
5012                    if e.event.position != previous_position {
5013                        this.refresh_drag_cursor_style(&e.event.modifiers, window, cx);
5014                    }
5015                }
5016                this.previous_drag_position = Some(e.event.position);
5017
5018                if !e.bounds.contains(&e.event.position) {
5019                    this.drag_target_entry = None;
5020                    return;
5021                }
5022                this.hover_scroll_task.take();
5023                let panel_height = e.bounds.size.height;
5024                if panel_height <= px(0.) {
5025                    return;
5026                }
5027
5028                let event_offset = e.event.position.y - e.bounds.origin.y;
5029                // How far along in the project panel is our cursor? (0. is the top of a list, 1. is the bottom)
5030                let hovered_region_offset = event_offset / panel_height;
5031
5032                // We want the scrolling to be a bit faster when the cursor is closer to the edge of a list.
5033                // These pixels offsets were picked arbitrarily.
5034                let vertical_scroll_offset = if hovered_region_offset <= 0.05 {
5035                    8.
5036                } else if hovered_region_offset <= 0.15 {
5037                    5.
5038                } else if hovered_region_offset >= 0.95 {
5039                    -8.
5040                } else if hovered_region_offset >= 0.85 {
5041                    -5.
5042                } else {
5043                    return;
5044                };
5045                let adjustment = point(px(0.), px(vertical_scroll_offset));
5046                this.hover_scroll_task = Some(cx.spawn_in(window, async move |this, cx| {
5047                    loop {
5048                        let should_stop_scrolling = this
5049                            .update(cx, |this, cx| {
5050                                this.hover_scroll_task.as_ref()?;
5051                                let handle = this.scroll_handle.0.borrow_mut();
5052                                let offset = handle.base_handle.offset();
5053
5054                                handle.base_handle.set_offset(offset + adjustment);
5055                                cx.notify();
5056                                Some(())
5057                            })
5058                            .ok()
5059                            .flatten()
5060                            .is_some();
5061                        if should_stop_scrolling {
5062                            return;
5063                        }
5064                        cx.background_executor()
5065                            .timer(Duration::from_millis(16))
5066                            .await;
5067                    }
5068                }));
5069            }
5070            h_flex()
5071                .id("project-panel")
5072                .group("project-panel")
5073                .on_drag_move(cx.listener(handle_drag_move::<ExternalPaths>))
5074                .on_drag_move(cx.listener(handle_drag_move::<DraggedSelection>))
5075                .size_full()
5076                .relative()
5077                .on_modifiers_changed(cx.listener(
5078                    |this, event: &ModifiersChangedEvent, window, cx| {
5079                        this.refresh_drag_cursor_style(&event.modifiers, window, cx);
5080                    },
5081                ))
5082                .on_hover(cx.listener(|this, hovered, window, cx| {
5083                    if *hovered {
5084                        this.show_scrollbar = true;
5085                        this.hide_scrollbar_task.take();
5086                        cx.notify();
5087                    } else if !this.focus_handle.contains_focused(window, cx) {
5088                        this.hide_scrollbar(window, cx);
5089                    }
5090                }))
5091                .on_click(cx.listener(|this, _event, _, cx| {
5092                    cx.stop_propagation();
5093                    this.selection = None;
5094                    this.marked_entries.clear();
5095                }))
5096                .key_context(self.dispatch_context(window, cx))
5097                .on_action(cx.listener(Self::select_next))
5098                .on_action(cx.listener(Self::select_previous))
5099                .on_action(cx.listener(Self::select_first))
5100                .on_action(cx.listener(Self::select_last))
5101                .on_action(cx.listener(Self::select_parent))
5102                .on_action(cx.listener(Self::select_next_git_entry))
5103                .on_action(cx.listener(Self::select_prev_git_entry))
5104                .on_action(cx.listener(Self::select_next_diagnostic))
5105                .on_action(cx.listener(Self::select_prev_diagnostic))
5106                .on_action(cx.listener(Self::select_next_directory))
5107                .on_action(cx.listener(Self::select_prev_directory))
5108                .on_action(cx.listener(Self::expand_selected_entry))
5109                .on_action(cx.listener(Self::collapse_selected_entry))
5110                .on_action(cx.listener(Self::collapse_all_entries))
5111                .on_action(cx.listener(Self::open))
5112                .on_action(cx.listener(Self::open_permanent))
5113                .on_action(cx.listener(Self::confirm))
5114                .on_action(cx.listener(Self::cancel))
5115                .on_action(cx.listener(Self::copy_path))
5116                .on_action(cx.listener(Self::copy_relative_path))
5117                .on_action(cx.listener(Self::new_search_in_directory))
5118                .on_action(cx.listener(Self::unfold_directory))
5119                .on_action(cx.listener(Self::fold_directory))
5120                .on_action(cx.listener(Self::remove_from_project))
5121                .when(!project.is_read_only(cx), |el| {
5122                    el.on_action(cx.listener(Self::new_file))
5123                        .on_action(cx.listener(Self::new_directory))
5124                        .on_action(cx.listener(Self::rename))
5125                        .on_action(cx.listener(Self::delete))
5126                        .on_action(cx.listener(Self::trash))
5127                        .on_action(cx.listener(Self::cut))
5128                        .on_action(cx.listener(Self::copy))
5129                        .on_action(cx.listener(Self::paste))
5130                        .on_action(cx.listener(Self::duplicate))
5131                        .on_click(cx.listener(|this, event: &gpui::ClickEvent, window, cx| {
5132                            if event.up.click_count > 1 {
5133                                if let Some(entry_id) = this.last_worktree_root_id {
5134                                    let project = this.project.read(cx);
5135
5136                                    let worktree_id = if let Some(worktree) =
5137                                        project.worktree_for_entry(entry_id, cx)
5138                                    {
5139                                        worktree.read(cx).id()
5140                                    } else {
5141                                        return;
5142                                    };
5143
5144                                    this.selection = Some(SelectedEntry {
5145                                        worktree_id,
5146                                        entry_id,
5147                                    });
5148
5149                                    this.new_file(&NewFile, window, cx);
5150                                }
5151                            }
5152                        }))
5153                })
5154                .when(project.is_local(), |el| {
5155                    el.on_action(cx.listener(Self::reveal_in_finder))
5156                        .on_action(cx.listener(Self::open_system))
5157                        .on_action(cx.listener(Self::open_in_terminal))
5158                })
5159                .when(project.is_via_ssh(), |el| {
5160                    el.on_action(cx.listener(Self::open_in_terminal))
5161                })
5162                .on_mouse_down(
5163                    MouseButton::Right,
5164                    cx.listener(move |this, event: &MouseDownEvent, window, cx| {
5165                        // When deploying the context menu anywhere below the last project entry,
5166                        // act as if the user clicked the root of the last worktree.
5167                        if let Some(entry_id) = this.last_worktree_root_id {
5168                            this.deploy_context_menu(event.position, entry_id, window, cx);
5169                        }
5170                    }),
5171                )
5172                .track_focus(&self.focus_handle(cx))
5173                .child(
5174                    uniform_list("entries", item_count, {
5175                        cx.processor(|this, range: Range<usize>, window, cx| {
5176                            let mut items = Vec::with_capacity(range.end - range.start);
5177                            this.for_each_visible_entry(
5178                                range,
5179                                window,
5180                                cx,
5181                                |id, details, window, cx| {
5182                                    items.push(this.render_entry(id, details, window, cx));
5183                                },
5184                            );
5185                            items
5186                        })
5187                    })
5188                    .when(show_indent_guides, |list| {
5189                        list.with_decoration(
5190                            ui::indent_guides(px(indent_size), IndentGuideColors::panel(cx))
5191                                .with_compute_indents_fn(
5192                                    cx.entity().clone(),
5193                                    |this, range, window, cx| {
5194                                        let mut items =
5195                                            SmallVec::with_capacity(range.end - range.start);
5196                                        this.iter_visible_entries(
5197                                            range,
5198                                            window,
5199                                            cx,
5200                                            |entry, _, entries, _, _| {
5201                                                let (depth, _) =
5202                                                    Self::calculate_depth_and_difference(
5203                                                        entry, entries,
5204                                                    );
5205                                                items.push(depth);
5206                                            },
5207                                        );
5208                                        items
5209                                    },
5210                                )
5211                                .on_click(cx.listener(
5212                                    |this, active_indent_guide: &IndentGuideLayout, window, cx| {
5213                                        if window.modifiers().secondary() {
5214                                            let ix = active_indent_guide.offset.y;
5215                                            let Some((target_entry, worktree)) = maybe!({
5216                                                let (worktree_id, entry) =
5217                                                    this.entry_at_index(ix)?;
5218                                                let worktree = this
5219                                                    .project
5220                                                    .read(cx)
5221                                                    .worktree_for_id(worktree_id, cx)?;
5222                                                let target_entry = worktree
5223                                                    .read(cx)
5224                                                    .entry_for_path(&entry.path.parent()?)?;
5225                                                Some((target_entry, worktree))
5226                                            }) else {
5227                                                return;
5228                                            };
5229
5230                                            this.collapse_entry(target_entry.clone(), worktree, cx);
5231                                        }
5232                                    },
5233                                ))
5234                                .with_render_fn(cx.entity().clone(), move |this, params, _, cx| {
5235                                    const LEFT_OFFSET: Pixels = px(14.);
5236                                    const PADDING_Y: Pixels = px(4.);
5237                                    const HITBOX_OVERDRAW: Pixels = px(3.);
5238
5239                                    let active_indent_guide_index =
5240                                        this.find_active_indent_guide(&params.indent_guides, cx);
5241
5242                                    let indent_size = params.indent_size;
5243                                    let item_height = params.item_height;
5244
5245                                    params
5246                                        .indent_guides
5247                                        .into_iter()
5248                                        .enumerate()
5249                                        .map(|(idx, layout)| {
5250                                            let offset = if layout.continues_offscreen {
5251                                                px(0.)
5252                                            } else {
5253                                                PADDING_Y
5254                                            };
5255                                            let bounds = Bounds::new(
5256                                                point(
5257                                                    layout.offset.x * indent_size + LEFT_OFFSET,
5258                                                    layout.offset.y * item_height + offset,
5259                                                ),
5260                                                size(
5261                                                    px(1.),
5262                                                    layout.length * item_height - offset * 2.,
5263                                                ),
5264                                            );
5265                                            ui::RenderedIndentGuide {
5266                                                bounds,
5267                                                layout,
5268                                                is_active: Some(idx) == active_indent_guide_index,
5269                                                hitbox: Some(Bounds::new(
5270                                                    point(
5271                                                        bounds.origin.x - HITBOX_OVERDRAW,
5272                                                        bounds.origin.y,
5273                                                    ),
5274                                                    size(
5275                                                        bounds.size.width + HITBOX_OVERDRAW * 2.,
5276                                                        bounds.size.height,
5277                                                    ),
5278                                                )),
5279                                            }
5280                                        })
5281                                        .collect()
5282                                }),
5283                        )
5284                    })
5285                    .when(show_sticky_entries, |list| {
5286                        let sticky_items = ui::sticky_items(
5287                            cx.entity().clone(),
5288                            |this, range, window, cx| {
5289                                let mut items = SmallVec::with_capacity(range.end - range.start);
5290                                this.iter_visible_entries(
5291                                    range,
5292                                    window,
5293                                    cx,
5294                                    |entry, index, entries, _, _| {
5295                                        let (depth, _) =
5296                                            Self::calculate_depth_and_difference(entry, entries);
5297                                        let candidate =
5298                                            StickyProjectPanelCandidate { index, depth };
5299                                        items.push(candidate);
5300                                    },
5301                                );
5302                                items
5303                            },
5304                            |this, marker_entry, window, cx| {
5305                                this.render_sticky_entries(marker_entry, window, cx)
5306                            },
5307                        );
5308                        list.with_decoration(if show_indent_guides {
5309                            sticky_items.with_decoration(
5310                                ui::indent_guides(px(indent_size), IndentGuideColors::panel(cx))
5311                                    .with_render_fn(cx.entity().clone(), move |_, params, _, _| {
5312                                        const LEFT_OFFSET: Pixels = px(14.);
5313
5314                                        let indent_size = params.indent_size;
5315                                        let item_height = params.item_height;
5316
5317                                        params
5318                                            .indent_guides
5319                                            .into_iter()
5320                                            .map(|layout| {
5321                                                let bounds = Bounds::new(
5322                                                    point(
5323                                                        layout.offset.x * indent_size + LEFT_OFFSET,
5324                                                        layout.offset.y * item_height,
5325                                                    ),
5326                                                    size(px(1.), layout.length * item_height),
5327                                                );
5328                                                ui::RenderedIndentGuide {
5329                                                    bounds,
5330                                                    layout,
5331                                                    is_active: false,
5332                                                    hitbox: None,
5333                                                }
5334                                            })
5335                                            .collect()
5336                                    }),
5337                            )
5338                        } else {
5339                            sticky_items
5340                        })
5341                    })
5342                    .size_full()
5343                    .with_sizing_behavior(ListSizingBehavior::Infer)
5344                    .with_horizontal_sizing_behavior(ListHorizontalSizingBehavior::Unconstrained)
5345                    .with_width_from_item(self.max_width_item_index)
5346                    .track_scroll(self.scroll_handle.clone()),
5347                )
5348                .children(self.render_vertical_scrollbar(cx))
5349                .when_some(self.render_horizontal_scrollbar(cx), |this, scrollbar| {
5350                    this.pb_4().child(scrollbar)
5351                })
5352                .children(self.context_menu.as_ref().map(|(menu, position, _)| {
5353                    deferred(
5354                        anchored()
5355                            .position(*position)
5356                            .anchor(gpui::Corner::TopLeft)
5357                            .child(menu.clone()),
5358                    )
5359                    .with_priority(3)
5360                }))
5361        } else {
5362            v_flex()
5363                .id("empty-project_panel")
5364                .size_full()
5365                .p_4()
5366                .track_focus(&self.focus_handle(cx))
5367                .child(
5368                    Button::new("open_project", "Open a project")
5369                        .full_width()
5370                        .key_binding(KeyBinding::for_action_in(
5371                            &OpenRecent::default(),
5372                            &self.focus_handle,
5373                            window,
5374                            cx,
5375                        ))
5376                        .on_click(cx.listener(|this, _, window, cx| {
5377                            this.workspace
5378                                .update(cx, |_, cx| {
5379                                    window.dispatch_action(OpenRecent::default().boxed_clone(), cx);
5380                                })
5381                                .log_err();
5382                        })),
5383                )
5384                .when(is_local, |div| {
5385                    div.drag_over::<ExternalPaths>(|style, _, _, cx| {
5386                        style.bg(cx.theme().colors().drop_target_background)
5387                    })
5388                    .on_drop(cx.listener(
5389                        move |this, external_paths: &ExternalPaths, window, cx| {
5390                            this.drag_target_entry = None;
5391                            this.hover_scroll_task.take();
5392                            if let Some(task) = this
5393                                .workspace
5394                                .update(cx, |workspace, cx| {
5395                                    workspace.open_workspace_for_paths(
5396                                        true,
5397                                        external_paths.paths().to_owned(),
5398                                        window,
5399                                        cx,
5400                                    )
5401                                })
5402                                .log_err()
5403                            {
5404                                task.detach_and_log_err(cx);
5405                            }
5406                            cx.stop_propagation();
5407                        },
5408                    ))
5409                })
5410        }
5411    }
5412}
5413
5414impl Render for DraggedProjectEntryView {
5415    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
5416        let ui_font = ThemeSettings::get_global(cx).ui_font.clone();
5417        h_flex()
5418            .font(ui_font)
5419            .pl(self.click_offset.x + px(12.))
5420            .pt(self.click_offset.y + px(12.))
5421            .child(
5422                div()
5423                    .flex()
5424                    .gap_1()
5425                    .items_center()
5426                    .py_1()
5427                    .px_2()
5428                    .rounded_lg()
5429                    .bg(cx.theme().colors().background)
5430                    .map(|this| {
5431                        if self.selections.len() > 1 && self.selections.contains(&self.selection) {
5432                            this.child(Label::new(format!("{} entries", self.selections.len())))
5433                        } else {
5434                            this.child(if let Some(icon) = &self.details.icon {
5435                                div().child(Icon::from_path(icon.clone()))
5436                            } else {
5437                                div()
5438                            })
5439                            .child(Label::new(self.details.filename.clone()))
5440                        }
5441                    }),
5442            )
5443    }
5444}
5445
5446impl EventEmitter<Event> for ProjectPanel {}
5447
5448impl EventEmitter<PanelEvent> for ProjectPanel {}
5449
5450impl Panel for ProjectPanel {
5451    fn position(&self, _: &Window, cx: &App) -> DockPosition {
5452        match ProjectPanelSettings::get_global(cx).dock {
5453            ProjectPanelDockPosition::Left => DockPosition::Left,
5454            ProjectPanelDockPosition::Right => DockPosition::Right,
5455        }
5456    }
5457
5458    fn position_is_valid(&self, position: DockPosition) -> bool {
5459        matches!(position, DockPosition::Left | DockPosition::Right)
5460    }
5461
5462    fn set_position(&mut self, position: DockPosition, _: &mut Window, cx: &mut Context<Self>) {
5463        settings::update_settings_file::<ProjectPanelSettings>(
5464            self.fs.clone(),
5465            cx,
5466            move |settings, _| {
5467                let dock = match position {
5468                    DockPosition::Left | DockPosition::Bottom => ProjectPanelDockPosition::Left,
5469                    DockPosition::Right => ProjectPanelDockPosition::Right,
5470                };
5471                settings.dock = Some(dock);
5472            },
5473        );
5474    }
5475
5476    fn size(&self, _: &Window, cx: &App) -> Pixels {
5477        self.width
5478            .unwrap_or_else(|| ProjectPanelSettings::get_global(cx).default_width)
5479    }
5480
5481    fn set_size(&mut self, size: Option<Pixels>, window: &mut Window, cx: &mut Context<Self>) {
5482        self.width = size;
5483        cx.notify();
5484        cx.defer_in(window, |this, _, cx| {
5485            this.serialize(cx);
5486        });
5487    }
5488
5489    fn icon(&self, _: &Window, cx: &App) -> Option<IconName> {
5490        ProjectPanelSettings::get_global(cx)
5491            .button
5492            .then_some(IconName::FileTree)
5493    }
5494
5495    fn icon_tooltip(&self, _window: &Window, _cx: &App) -> Option<&'static str> {
5496        Some("Project Panel")
5497    }
5498
5499    fn toggle_action(&self) -> Box<dyn Action> {
5500        Box::new(ToggleFocus)
5501    }
5502
5503    fn persistent_name() -> &'static str {
5504        "Project Panel"
5505    }
5506
5507    fn starts_open(&self, _: &Window, cx: &App) -> bool {
5508        let project = &self.project.read(cx);
5509        project.visible_worktrees(cx).any(|tree| {
5510            tree.read(cx)
5511                .root_entry()
5512                .map_or(false, |entry| entry.is_dir())
5513        })
5514    }
5515
5516    fn activation_priority(&self) -> u32 {
5517        0
5518    }
5519}
5520
5521impl Focusable for ProjectPanel {
5522    fn focus_handle(&self, _cx: &App) -> FocusHandle {
5523        self.focus_handle.clone()
5524    }
5525}
5526
5527impl ClipboardEntry {
5528    fn is_cut(&self) -> bool {
5529        matches!(self, Self::Cut { .. })
5530    }
5531
5532    fn items(&self) -> &BTreeSet<SelectedEntry> {
5533        match self {
5534            ClipboardEntry::Copied(entries) | ClipboardEntry::Cut(entries) => entries,
5535        }
5536    }
5537
5538    fn to_copy_entry(self) -> Self {
5539        match self {
5540            ClipboardEntry::Copied(_) => self,
5541            ClipboardEntry::Cut(entries) => ClipboardEntry::Copied(entries),
5542        }
5543    }
5544}
5545
5546#[cfg(test)]
5547mod project_panel_tests;