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 git_ui::file_diff_view::FileDiffView;
  20use gpui::{
  21    Action, AnyElement, App, ArcCow, AsyncWindowContext, Bounds, ClipboardItem, Context,
  22    CursorStyle, DismissEvent, Div, DragMoveEvent, Entity, EventEmitter, ExternalPaths,
  23    FocusHandle, Focusable, Hsla, InteractiveElement, KeyContext, ListHorizontalSizingBehavior,
  24    ListSizingBehavior, Modifiers, ModifiersChangedEvent, MouseButton, MouseDownEvent,
  25    ParentElement, Pixels, Point, PromptLevel, Render, ScrollStrategy, Stateful, Styled,
  26    Subscription, Task, UniformListScrollHandle, WeakEntity, Window, actions, anchored, deferred,
  27    div, hsla, linear_color_stop, linear_gradient, point, px, size, transparent_white,
  28    uniform_list,
  29};
  30use indexmap::IndexMap;
  31use language::DiagnosticSeverity;
  32use menu::{Confirm, SelectFirst, SelectLast, SelectNext, SelectPrevious};
  33use project::{
  34    Entry, EntryKind, Fs, GitEntry, GitEntryRef, GitTraversal, Project, ProjectEntryId,
  35    ProjectPath, Worktree, WorktreeId,
  36    git_store::{GitStoreEvent, git_traversal::ChildEntriesGitIter},
  37    project_settings::GoToDiagnosticSeverityFilter,
  38    relativize_path,
  39};
  40use project_panel_settings::{
  41    ProjectPanelDockPosition, ProjectPanelSettings, ShowDiagnostics, ShowIndentGuides,
  42};
  43use schemars::JsonSchema;
  44use serde::{Deserialize, Serialize};
  45use settings::{Settings, SettingsStore, update_settings_file};
  46use smallvec::SmallVec;
  47use std::{any::TypeId, time::Instant};
  48use std::{
  49    cell::OnceCell,
  50    cmp,
  51    collections::HashSet,
  52    ffi::OsStr,
  53    ops::Range,
  54    path::{Path, PathBuf},
  55    sync::Arc,
  56    time::Duration,
  57};
  58use theme::ThemeSettings;
  59use ui::{
  60    Color, ContextMenu, DecoratedIcon, Divider, Icon, IconDecoration, IconDecorationKind,
  61    IndentGuideColors, IndentGuideLayout, KeyBinding, Label, LabelSize, ListItem, ListItemSpacing,
  62    ScrollableHandle, Scrollbar, ScrollbarState, StickyCandidate, Tooltip, prelude::*, v_flex,
  63};
  64use util::{ResultExt, TakeUntilExt, TryFutureExt, maybe, paths::compare_paths};
  65use workspace::{
  66    DraggedSelection, OpenInTerminal, OpenOptions, OpenVisible, PreviewTabsSettings, SelectedEntry,
  67    Workspace,
  68    dock::{DockPosition, Panel, PanelEvent},
  69    notifications::{DetachAndPromptErr, NotifyTaskExt},
  70};
  71use worktree::CreatedEntry;
  72
  73const PROJECT_PANEL_KEY: &str = "ProjectPanel";
  74const NEW_ENTRY_ID: ProjectEntryId = ProjectEntryId::MAX;
  75
  76struct VisibleEntriesForWorktree {
  77    worktree_id: WorktreeId,
  78    entries: Vec<GitEntry>,
  79    index: OnceCell<HashSet<Arc<Path>>>,
  80}
  81
  82pub struct ProjectPanel {
  83    project: Entity<Project>,
  84    fs: Arc<dyn Fs>,
  85    focus_handle: FocusHandle,
  86    scroll_handle: UniformListScrollHandle,
  87    // An update loop that keeps incrementing/decrementing scroll offset while there is a dragged entry that's
  88    // hovered over the start/end of a list.
  89    hover_scroll_task: Option<Task<()>>,
  90    visible_entries: Vec<VisibleEntriesForWorktree>,
  91    /// Maps from leaf project entry ID to the currently selected ancestor.
  92    /// Relevant only for auto-fold dirs, where a single project panel entry may actually consist of several
  93    /// project entries (and all non-leaf nodes are guaranteed to be directories).
  94    ancestors: HashMap<ProjectEntryId, FoldedAncestors>,
  95    folded_directory_drag_target: Option<FoldedDirectoryDragTarget>,
  96    last_worktree_root_id: Option<ProjectEntryId>,
  97    drag_target_entry: Option<DragTargetEntry>,
  98    expanded_dir_ids: HashMap<WorktreeId, Vec<ProjectEntryId>>,
  99    unfolded_dir_ids: HashSet<ProjectEntryId>,
 100    // Currently selected leaf entry (see auto-folding for a definition of that) in a file tree
 101    selection: Option<SelectedEntry>,
 102    marked_entries: Vec<SelectedEntry>,
 103    context_menu: Option<(Entity<ContextMenu>, Point<Pixels>, Subscription)>,
 104    edit_state: Option<EditState>,
 105    filename_editor: Entity<Editor>,
 106    clipboard: Option<ClipboardEntry>,
 107    _dragged_entry_destination: Option<Arc<Path>>,
 108    workspace: WeakEntity<Workspace>,
 109    width: Option<Pixels>,
 110    pending_serialization: Task<Option<()>>,
 111    show_scrollbar: bool,
 112    vertical_scrollbar_state: ScrollbarState,
 113    horizontal_scrollbar_state: ScrollbarState,
 114    hide_scrollbar_task: Option<Task<()>>,
 115    diagnostics: HashMap<(WorktreeId, PathBuf), DiagnosticSeverity>,
 116    max_width_item_index: Option<usize>,
 117    diagnostic_summary_update: Task<()>,
 118    // We keep track of the mouse down state on entries so we don't flash the UI
 119    // in case a user clicks to open a file.
 120    mouse_down: bool,
 121    hover_expand_task: Option<Task<()>>,
 122    previous_drag_position: Option<Point<Pixels>>,
 123    sticky_items_count: usize,
 124    last_reported_update: Instant,
 125}
 126
 127struct DragTargetEntry {
 128    /// The entry currently under the mouse cursor during a drag operation
 129    entry_id: ProjectEntryId,
 130    /// Highlight this entry along with all of its children
 131    highlight_entry_id: Option<ProjectEntryId>,
 132}
 133
 134#[derive(Copy, Clone, Debug)]
 135struct FoldedDirectoryDragTarget {
 136    entry_id: ProjectEntryId,
 137    index: usize,
 138    /// Whether we are dragging over the delimiter rather than the component itself.
 139    is_delimiter_target: bool,
 140}
 141
 142#[derive(Clone, Debug)]
 143enum ValidationState {
 144    None,
 145    Warning(String),
 146    Error(String),
 147}
 148
 149#[derive(Clone, Debug)]
 150struct EditState {
 151    worktree_id: WorktreeId,
 152    entry_id: ProjectEntryId,
 153    leaf_entry_id: Option<ProjectEntryId>,
 154    is_dir: bool,
 155    depth: usize,
 156    processing_filename: Option<String>,
 157    previously_focused: Option<SelectedEntry>,
 158    validation_state: ValidationState,
 159}
 160
 161impl EditState {
 162    fn is_new_entry(&self) -> bool {
 163        self.leaf_entry_id.is_none()
 164    }
 165}
 166
 167#[derive(Clone, Debug)]
 168enum ClipboardEntry {
 169    Copied(BTreeSet<SelectedEntry>),
 170    Cut(BTreeSet<SelectedEntry>),
 171}
 172
 173#[derive(Debug, PartialEq, Eq, Clone)]
 174struct EntryDetails {
 175    filename: String,
 176    icon: Option<SharedString>,
 177    path: Arc<Path>,
 178    depth: usize,
 179    kind: EntryKind,
 180    is_ignored: bool,
 181    is_expanded: bool,
 182    is_selected: bool,
 183    is_marked: bool,
 184    is_editing: bool,
 185    is_processing: bool,
 186    is_cut: bool,
 187    sticky: Option<StickyDetails>,
 188    filename_text_color: Color,
 189    diagnostic_severity: Option<DiagnosticSeverity>,
 190    git_status: GitSummary,
 191    is_private: bool,
 192    worktree_id: WorktreeId,
 193    canonical_path: Option<Arc<Path>>,
 194}
 195
 196#[derive(Debug, PartialEq, Eq, Clone)]
 197struct StickyDetails {
 198    sticky_index: usize,
 199}
 200
 201/// Permanently deletes the selected file or directory.
 202#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
 203#[action(namespace = project_panel)]
 204#[serde(deny_unknown_fields)]
 205struct Delete {
 206    #[serde(default)]
 207    pub skip_prompt: bool,
 208}
 209
 210/// Moves the selected file or directory to the system trash.
 211#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
 212#[action(namespace = project_panel)]
 213#[serde(deny_unknown_fields)]
 214struct Trash {
 215    #[serde(default)]
 216    pub skip_prompt: bool,
 217}
 218
 219/// Selects the next entry with diagnostics.
 220#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
 221#[action(namespace = project_panel)]
 222#[serde(deny_unknown_fields)]
 223struct SelectNextDiagnostic {
 224    #[serde(default)]
 225    pub severity: GoToDiagnosticSeverityFilter,
 226}
 227
 228/// Selects the previous entry with diagnostics.
 229#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
 230#[action(namespace = project_panel)]
 231#[serde(deny_unknown_fields)]
 232struct SelectPrevDiagnostic {
 233    #[serde(default)]
 234    pub severity: GoToDiagnosticSeverityFilter,
 235}
 236
 237actions!(
 238    project_panel,
 239    [
 240        /// Expands the selected entry in the project tree.
 241        ExpandSelectedEntry,
 242        /// Collapses the selected entry in the project tree.
 243        CollapseSelectedEntry,
 244        /// Collapses all entries in the project tree.
 245        CollapseAllEntries,
 246        /// Creates a new directory.
 247        NewDirectory,
 248        /// Creates a new file.
 249        NewFile,
 250        /// Copies the selected file or directory.
 251        Copy,
 252        /// Duplicates the selected file or directory.
 253        Duplicate,
 254        /// Reveals the selected item in the system file manager.
 255        RevealInFileManager,
 256        /// Removes the selected folder from the project.
 257        RemoveFromProject,
 258        /// Opens the selected file with the system's default application.
 259        OpenWithSystem,
 260        /// Cuts the selected file or directory.
 261        Cut,
 262        /// Pastes the previously cut or copied item.
 263        Paste,
 264        /// Renames the selected file or directory.
 265        Rename,
 266        /// Opens the selected file in the editor.
 267        Open,
 268        /// Opens the selected file in a permanent tab.
 269        OpenPermanent,
 270        /// Toggles focus on the project panel.
 271        ToggleFocus,
 272        /// Toggles visibility of git-ignored files.
 273        ToggleHideGitIgnore,
 274        /// Starts a new search in the selected directory.
 275        NewSearchInDirectory,
 276        /// Unfolds the selected directory.
 277        UnfoldDirectory,
 278        /// Folds the selected directory.
 279        FoldDirectory,
 280        /// Selects the parent directory.
 281        SelectParent,
 282        /// Selects the next entry with git changes.
 283        SelectNextGitEntry,
 284        /// Selects the previous entry with git changes.
 285        SelectPrevGitEntry,
 286        /// Selects the next directory.
 287        SelectNextDirectory,
 288        /// Selects the previous directory.
 289        SelectPrevDirectory,
 290        /// Opens a diff view to compare two marked files.
 291        CompareMarkedFiles,
 292    ]
 293);
 294
 295#[derive(Debug, Default)]
 296struct FoldedAncestors {
 297    current_ancestor_depth: usize,
 298    ancestors: Vec<ProjectEntryId>,
 299}
 300
 301impl FoldedAncestors {
 302    fn max_ancestor_depth(&self) -> usize {
 303        self.ancestors.len()
 304    }
 305}
 306
 307pub fn init_settings(cx: &mut App) {
 308    ProjectPanelSettings::register(cx);
 309}
 310
 311pub fn init(cx: &mut App) {
 312    init_settings(cx);
 313
 314    cx.observe_new(|workspace: &mut Workspace, _, _| {
 315        workspace.register_action(|workspace, _: &ToggleFocus, window, cx| {
 316            workspace.toggle_panel_focus::<ProjectPanel>(window, cx);
 317        });
 318
 319        workspace.register_action(|workspace, _: &ToggleHideGitIgnore, _, cx| {
 320            let fs = workspace.app_state().fs.clone();
 321            update_settings_file::<ProjectPanelSettings>(fs, cx, move |setting, _| {
 322                setting.hide_gitignore = Some(!setting.hide_gitignore.unwrap_or(false));
 323            })
 324        });
 325
 326        workspace.register_action(|workspace, action: &CollapseAllEntries, window, cx| {
 327            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 328                panel.update(cx, |panel, cx| {
 329                    panel.collapse_all_entries(action, window, cx);
 330                });
 331            }
 332        });
 333
 334        workspace.register_action(|workspace, action: &Rename, window, cx| {
 335            workspace.open_panel::<ProjectPanel>(window, cx);
 336            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 337                panel.update(cx, |panel, cx| {
 338                    if let Some(first_marked) = panel.marked_entries.first() {
 339                        let first_marked = *first_marked;
 340                        panel.marked_entries.clear();
 341                        panel.selection = Some(first_marked);
 342                    }
 343                    panel.rename(action, window, cx);
 344                });
 345            }
 346        });
 347
 348        workspace.register_action(|workspace, action: &Duplicate, window, cx| {
 349            workspace.open_panel::<ProjectPanel>(window, cx);
 350            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 351                panel.update(cx, |panel, cx| {
 352                    panel.duplicate(action, window, cx);
 353                });
 354            }
 355        });
 356
 357        workspace.register_action(|workspace, action: &Delete, window, cx| {
 358            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 359                panel.update(cx, |panel, cx| panel.delete(action, window, cx));
 360            }
 361        });
 362    })
 363    .detach();
 364}
 365
 366#[derive(Debug)]
 367pub enum Event {
 368    OpenedEntry {
 369        entry_id: ProjectEntryId,
 370        focus_opened_item: bool,
 371        allow_preview: bool,
 372    },
 373    SplitEntry {
 374        entry_id: ProjectEntryId,
 375    },
 376    Focus,
 377}
 378
 379#[derive(Serialize, Deserialize)]
 380struct SerializedProjectPanel {
 381    width: Option<Pixels>,
 382}
 383
 384struct DraggedProjectEntryView {
 385    selection: SelectedEntry,
 386    details: EntryDetails,
 387    click_offset: Point<Pixels>,
 388    selections: Arc<[SelectedEntry]>,
 389}
 390
 391struct ItemColors {
 392    default: Hsla,
 393    hover: Hsla,
 394    drag_over: Hsla,
 395    marked: Hsla,
 396    focused: Hsla,
 397}
 398
 399fn get_item_color(is_sticky: bool, cx: &App) -> ItemColors {
 400    let colors = cx.theme().colors();
 401
 402    ItemColors {
 403        default: if is_sticky {
 404            colors.panel_overlay_background
 405        } else {
 406            colors.panel_background
 407        },
 408        hover: if is_sticky {
 409            colors.panel_overlay_hover
 410        } else {
 411            colors.element_hover
 412        },
 413        marked: colors.element_selected,
 414        focused: colors.panel_focused_border,
 415        drag_over: colors.drop_target_background,
 416    }
 417}
 418
 419impl ProjectPanel {
 420    fn new(
 421        workspace: &mut Workspace,
 422        window: &mut Window,
 423        cx: &mut Context<Workspace>,
 424    ) -> Entity<Self> {
 425        let project = workspace.project().clone();
 426        let git_store = project.read(cx).git_store().clone();
 427        let project_panel = cx.new(|cx| {
 428            let focus_handle = cx.focus_handle();
 429            cx.on_focus(&focus_handle, window, Self::focus_in).detach();
 430            cx.on_focus_out(&focus_handle, window, |this, _, window, cx| {
 431                this.focus_out(window, cx);
 432                this.hide_scrollbar(window, cx);
 433            })
 434            .detach();
 435
 436            cx.subscribe(&git_store, |this, _, event, cx| match event {
 437                GitStoreEvent::RepositoryUpdated(_, _, _)
 438                | GitStoreEvent::RepositoryAdded(_)
 439                | GitStoreEvent::RepositoryRemoved(_) => {
 440                    this.update_visible_entries(None, cx);
 441                    cx.notify();
 442                }
 443                _ => {}
 444            })
 445            .detach();
 446
 447            cx.subscribe(&project, |this, project, event, cx| match event {
 448                project::Event::ActiveEntryChanged(Some(entry_id)) => {
 449                    if ProjectPanelSettings::get_global(cx).auto_reveal_entries {
 450                        this.reveal_entry(project.clone(), *entry_id, true, cx).ok();
 451                    }
 452                }
 453                project::Event::ActiveEntryChanged(None) => {
 454                    let is_active_item_file_diff_view = this
 455                        .workspace
 456                        .upgrade()
 457                        .and_then(|ws| ws.read(cx).active_item(cx))
 458                        .map(|item| item.act_as_type(TypeId::of::<FileDiffView>(), cx).is_some())
 459                        .unwrap_or(false);
 460                    if !is_active_item_file_diff_view {
 461                        this.marked_entries.clear();
 462                    }
 463                }
 464                project::Event::RevealInProjectPanel(entry_id) => {
 465                    if let Some(()) = this
 466                        .reveal_entry(project.clone(), *entry_id, false, cx)
 467                        .log_err()
 468                    {
 469                        cx.emit(PanelEvent::Activate);
 470                    }
 471                }
 472                project::Event::ActivateProjectPanel => {
 473                    cx.emit(PanelEvent::Activate);
 474                }
 475                project::Event::DiskBasedDiagnosticsFinished { .. }
 476                | project::Event::DiagnosticsUpdated { .. } => {
 477                    if ProjectPanelSettings::get_global(cx).show_diagnostics != ShowDiagnostics::Off
 478                    {
 479                        this.diagnostic_summary_update = cx.spawn(async move |this, cx| {
 480                            cx.background_executor()
 481                                .timer(Duration::from_millis(30))
 482                                .await;
 483                            this.update(cx, |this, cx| {
 484                                this.update_diagnostics(cx);
 485                                cx.notify();
 486                            })
 487                            .log_err();
 488                        });
 489                    }
 490                }
 491                project::Event::WorktreeRemoved(id) => {
 492                    this.expanded_dir_ids.remove(id);
 493                    this.update_visible_entries(None, cx);
 494                    cx.notify();
 495                }
 496                project::Event::WorktreeUpdatedEntries(_, _)
 497                | project::Event::WorktreeAdded(_)
 498                | project::Event::WorktreeOrderChanged => {
 499                    this.update_visible_entries(None, cx);
 500                    cx.notify();
 501                }
 502                project::Event::ExpandedAllForEntry(worktree_id, entry_id) => {
 503                    if let Some((worktree, expanded_dir_ids)) = project
 504                        .read(cx)
 505                        .worktree_for_id(*worktree_id, cx)
 506                        .zip(this.expanded_dir_ids.get_mut(worktree_id))
 507                    {
 508                        let worktree = worktree.read(cx);
 509
 510                        let Some(entry) = worktree.entry_for_id(*entry_id) else {
 511                            return;
 512                        };
 513                        let include_ignored_dirs = !entry.is_ignored;
 514
 515                        let mut dirs_to_expand = vec![*entry_id];
 516                        while let Some(current_id) = dirs_to_expand.pop() {
 517                            let Some(current_entry) = worktree.entry_for_id(current_id) else {
 518                                continue;
 519                            };
 520                            for child in worktree.child_entries(&current_entry.path) {
 521                                if !child.is_dir() || (include_ignored_dirs && child.is_ignored) {
 522                                    continue;
 523                                }
 524
 525                                dirs_to_expand.push(child.id);
 526
 527                                if let Err(ix) = expanded_dir_ids.binary_search(&child.id) {
 528                                    expanded_dir_ids.insert(ix, child.id);
 529                                }
 530                                this.unfolded_dir_ids.insert(child.id);
 531                            }
 532                        }
 533                        this.update_visible_entries(None, cx);
 534                        cx.notify();
 535                    }
 536                }
 537                _ => {}
 538            })
 539            .detach();
 540
 541            let trash_action = [TypeId::of::<Trash>()];
 542            let is_remote = project.read(cx).is_via_collab();
 543
 544            if is_remote {
 545                CommandPaletteFilter::update_global(cx, |filter, _cx| {
 546                    filter.hide_action_types(&trash_action);
 547                });
 548            }
 549
 550            let filename_editor = cx.new(|cx| Editor::single_line(window, cx));
 551
 552            cx.subscribe(
 553                &filename_editor,
 554                |project_panel, _, editor_event, cx| match editor_event {
 555                    EditorEvent::BufferEdited => {
 556                        project_panel.populate_validation_error(cx);
 557                        project_panel.autoscroll(cx);
 558                    }
 559                    EditorEvent::SelectionsChanged { .. } => {
 560                        project_panel.autoscroll(cx);
 561                    }
 562                    EditorEvent::Blurred => {
 563                        if project_panel
 564                            .edit_state
 565                            .as_ref()
 566                            .is_some_and(|state| state.processing_filename.is_none())
 567                        {
 568                            project_panel.edit_state = None;
 569                            project_panel.update_visible_entries(None, cx);
 570                            cx.notify();
 571                        }
 572                    }
 573                    _ => {}
 574                },
 575            )
 576            .detach();
 577
 578            cx.observe_global::<FileIcons>(|_, cx| {
 579                cx.notify();
 580            })
 581            .detach();
 582
 583            let mut project_panel_settings = *ProjectPanelSettings::get_global(cx);
 584            cx.observe_global::<SettingsStore>(move |this, cx| {
 585                let new_settings = *ProjectPanelSettings::get_global(cx);
 586                if project_panel_settings != new_settings {
 587                    if project_panel_settings.hide_gitignore != new_settings.hide_gitignore {
 588                        this.update_visible_entries(None, cx);
 589                    }
 590                    if project_panel_settings.hide_root != new_settings.hide_root {
 591                        this.update_visible_entries(None, cx);
 592                    }
 593                    if project_panel_settings.sticky_scroll && !new_settings.sticky_scroll {
 594                        this.sticky_items_count = 0;
 595                    }
 596                    project_panel_settings = new_settings;
 597                    this.update_diagnostics(cx);
 598                    cx.notify();
 599                }
 600            })
 601            .detach();
 602
 603            let scroll_handle = UniformListScrollHandle::new();
 604            let mut this = Self {
 605                project: project.clone(),
 606                hover_scroll_task: None,
 607                fs: workspace.app_state().fs.clone(),
 608                focus_handle,
 609                visible_entries: Default::default(),
 610                ancestors: Default::default(),
 611                folded_directory_drag_target: None,
 612                drag_target_entry: None,
 613                last_worktree_root_id: Default::default(),
 614                expanded_dir_ids: Default::default(),
 615                unfolded_dir_ids: Default::default(),
 616                selection: None,
 617                marked_entries: Default::default(),
 618                edit_state: None,
 619                context_menu: None,
 620                filename_editor,
 621                clipboard: None,
 622                _dragged_entry_destination: None,
 623                workspace: workspace.weak_handle(),
 624                width: None,
 625                pending_serialization: Task::ready(None),
 626                show_scrollbar: !Self::should_autohide_scrollbar(cx),
 627                hide_scrollbar_task: None,
 628                vertical_scrollbar_state: ScrollbarState::new(scroll_handle.clone())
 629                    .parent_entity(&cx.entity()),
 630                horizontal_scrollbar_state: ScrollbarState::new(scroll_handle.clone())
 631                    .parent_entity(&cx.entity()),
 632                max_width_item_index: None,
 633                diagnostics: Default::default(),
 634                diagnostic_summary_update: Task::ready(()),
 635                scroll_handle,
 636                mouse_down: false,
 637                hover_expand_task: None,
 638                previous_drag_position: None,
 639                sticky_items_count: 0,
 640                last_reported_update: Instant::now(),
 641            };
 642            this.update_visible_entries(None, cx);
 643
 644            this
 645        });
 646
 647        cx.subscribe_in(&project_panel, window, {
 648            let project_panel = project_panel.downgrade();
 649            move |workspace, _, event, window, cx| match event {
 650                &Event::OpenedEntry {
 651                    entry_id,
 652                    focus_opened_item,
 653                    allow_preview,
 654                } => {
 655                    if let Some(worktree) = project.read(cx).worktree_for_entry(entry_id, cx)
 656                        && let Some(entry) = worktree.read(cx).entry_for_id(entry_id) {
 657                            let file_path = entry.path.clone();
 658                            let worktree_id = worktree.read(cx).id();
 659                            let entry_id = entry.id;
 660                            let is_via_ssh = project.read(cx).is_via_ssh();
 661
 662                            workspace
 663                                .open_path_preview(
 664                                    ProjectPath {
 665                                        worktree_id,
 666                                        path: file_path.clone(),
 667                                    },
 668                                    None,
 669                                    focus_opened_item,
 670                                    allow_preview,
 671                                    true,
 672                                    window, cx,
 673                                )
 674                                .detach_and_prompt_err("Failed to open file", window, cx, move |e, _, _| {
 675                                    match e.error_code() {
 676                                        ErrorCode::Disconnected => if is_via_ssh {
 677                                            Some("Disconnected from SSH host".to_string())
 678                                        } else {
 679                                            Some("Disconnected from remote project".to_string())
 680                                        },
 681                                        ErrorCode::UnsharedItem => Some(format!(
 682                                            "{} is not shared by the host. This could be because it has been marked as `private`",
 683                                            file_path.display()
 684                                        )),
 685                                        // See note in worktree.rs where this error originates. Returning Some in this case prevents
 686                                        // the error popup from saying "Try Again", which is a red herring in this case
 687                                        ErrorCode::Internal if e.to_string().contains("File is too large to load") => Some(e.to_string()),
 688                                        _ => None,
 689                                    }
 690                                });
 691
 692                            if let Some(project_panel) = project_panel.upgrade() {
 693                                // Always select and mark the entry, regardless of whether it is opened or not.
 694                                project_panel.update(cx, |project_panel, _| {
 695                                    let entry = SelectedEntry { worktree_id, entry_id };
 696                                    project_panel.marked_entries.clear();
 697                                    project_panel.marked_entries.push(entry);
 698                                    project_panel.selection = Some(entry);
 699                                });
 700                                if !focus_opened_item {
 701                                    let focus_handle = project_panel.read(cx).focus_handle.clone();
 702                                    window.focus(&focus_handle);
 703                                }
 704                            }
 705                        }
 706                }
 707                &Event::SplitEntry { entry_id } => {
 708                    if let Some(worktree) = project.read(cx).worktree_for_entry(entry_id, cx)
 709                        && let Some(entry) = worktree.read(cx).entry_for_id(entry_id) {
 710                            workspace
 711                                .split_path(
 712                                    ProjectPath {
 713                                        worktree_id: worktree.read(cx).id(),
 714                                        path: entry.path.clone(),
 715                                    },
 716                                    window, cx,
 717                                )
 718                                .detach_and_log_err(cx);
 719                        }
 720                }
 721
 722                _ => {}
 723            }
 724        })
 725        .detach();
 726
 727        project_panel
 728    }
 729
 730    pub async fn load(
 731        workspace: WeakEntity<Workspace>,
 732        mut cx: AsyncWindowContext,
 733    ) -> Result<Entity<Self>> {
 734        let serialized_panel = match workspace
 735            .read_with(&cx, |workspace, _| {
 736                ProjectPanel::serialization_key(workspace)
 737            })
 738            .ok()
 739            .flatten()
 740        {
 741            Some(serialization_key) => cx
 742                .background_spawn(async move { KEY_VALUE_STORE.read_kvp(&serialization_key) })
 743                .await
 744                .context("loading project panel")
 745                .log_err()
 746                .flatten()
 747                .map(|panel| serde_json::from_str::<SerializedProjectPanel>(&panel))
 748                .transpose()
 749                .log_err()
 750                .flatten(),
 751            None => None,
 752        };
 753
 754        workspace.update_in(&mut cx, |workspace, window, cx| {
 755            let panel = ProjectPanel::new(workspace, window, cx);
 756            if let Some(serialized_panel) = serialized_panel {
 757                panel.update(cx, |panel, cx| {
 758                    panel.width = serialized_panel.width.map(|px| px.round());
 759                    cx.notify();
 760                });
 761            }
 762            panel
 763        })
 764    }
 765
 766    fn update_diagnostics(&mut self, cx: &mut Context<Self>) {
 767        let mut diagnostics: HashMap<(WorktreeId, PathBuf), DiagnosticSeverity> =
 768            Default::default();
 769        let show_diagnostics_setting = ProjectPanelSettings::get_global(cx).show_diagnostics;
 770
 771        if show_diagnostics_setting != ShowDiagnostics::Off {
 772            self.project
 773                .read(cx)
 774                .diagnostic_summaries(false, cx)
 775                .filter_map(|(path, _, diagnostic_summary)| {
 776                    if diagnostic_summary.error_count > 0 {
 777                        Some((path, DiagnosticSeverity::ERROR))
 778                    } else if show_diagnostics_setting == ShowDiagnostics::All
 779                        && diagnostic_summary.warning_count > 0
 780                    {
 781                        Some((path, DiagnosticSeverity::WARNING))
 782                    } else {
 783                        None
 784                    }
 785                })
 786                .for_each(|(project_path, diagnostic_severity)| {
 787                    let mut path_buffer = PathBuf::new();
 788                    Self::update_strongest_diagnostic_severity(
 789                        &mut diagnostics,
 790                        &project_path,
 791                        path_buffer.clone(),
 792                        diagnostic_severity,
 793                    );
 794
 795                    for component in project_path.path.components() {
 796                        path_buffer.push(component);
 797                        Self::update_strongest_diagnostic_severity(
 798                            &mut diagnostics,
 799                            &project_path,
 800                            path_buffer.clone(),
 801                            diagnostic_severity,
 802                        );
 803                    }
 804                });
 805        }
 806        self.diagnostics = diagnostics;
 807    }
 808
 809    fn update_strongest_diagnostic_severity(
 810        diagnostics: &mut HashMap<(WorktreeId, PathBuf), DiagnosticSeverity>,
 811        project_path: &ProjectPath,
 812        path_buffer: PathBuf,
 813        diagnostic_severity: DiagnosticSeverity,
 814    ) {
 815        diagnostics
 816            .entry((project_path.worktree_id, path_buffer.clone()))
 817            .and_modify(|strongest_diagnostic_severity| {
 818                *strongest_diagnostic_severity =
 819                    cmp::min(*strongest_diagnostic_severity, diagnostic_severity);
 820            })
 821            .or_insert(diagnostic_severity);
 822    }
 823
 824    fn serialization_key(workspace: &Workspace) -> Option<String> {
 825        workspace
 826            .database_id()
 827            .map(|id| i64::from(id).to_string())
 828            .or(workspace.session_id())
 829            .map(|id| format!("{}-{:?}", PROJECT_PANEL_KEY, id))
 830    }
 831
 832    fn serialize(&mut self, cx: &mut Context<Self>) {
 833        let Some(serialization_key) = self
 834            .workspace
 835            .read_with(cx, |workspace, _| {
 836                ProjectPanel::serialization_key(workspace)
 837            })
 838            .ok()
 839            .flatten()
 840        else {
 841            return;
 842        };
 843        let width = self.width;
 844        self.pending_serialization = cx.background_spawn(
 845            async move {
 846                KEY_VALUE_STORE
 847                    .write_kvp(
 848                        serialization_key,
 849                        serde_json::to_string(&SerializedProjectPanel { width })?,
 850                    )
 851                    .await?;
 852                anyhow::Ok(())
 853            }
 854            .log_err(),
 855        );
 856    }
 857
 858    fn focus_in(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 859        if !self.focus_handle.contains_focused(window, cx) {
 860            cx.emit(Event::Focus);
 861        }
 862    }
 863
 864    fn focus_out(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 865        if !self.focus_handle.is_focused(window) {
 866            self.confirm(&Confirm, window, cx);
 867        }
 868    }
 869
 870    fn deploy_context_menu(
 871        &mut self,
 872        position: Point<Pixels>,
 873        entry_id: ProjectEntryId,
 874        window: &mut Window,
 875        cx: &mut Context<Self>,
 876    ) {
 877        let project = self.project.read(cx);
 878
 879        let worktree_id = if let Some(id) = project.worktree_id_for_entry(entry_id, cx) {
 880            id
 881        } else {
 882            return;
 883        };
 884
 885        self.selection = Some(SelectedEntry {
 886            worktree_id,
 887            entry_id,
 888        });
 889
 890        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
 891            let auto_fold_dirs = ProjectPanelSettings::get_global(cx).auto_fold_dirs;
 892            let worktree = worktree.read(cx);
 893            let is_root = Some(entry) == worktree.root_entry();
 894            let is_dir = entry.is_dir();
 895            let is_foldable = auto_fold_dirs && self.is_foldable(entry, worktree);
 896            let is_unfoldable = auto_fold_dirs && self.is_unfoldable(entry, worktree);
 897            let is_read_only = project.is_read_only(cx);
 898            let is_remote = project.is_via_collab();
 899            let is_local = project.is_local();
 900
 901            let settings = ProjectPanelSettings::get_global(cx);
 902            let visible_worktrees_count = project.visible_worktrees(cx).count();
 903            let should_hide_rename = is_root
 904                && (cfg!(target_os = "windows")
 905                    || (settings.hide_root && visible_worktrees_count == 1));
 906            let should_show_compare = !is_dir && self.file_abs_paths_to_diff(cx).is_some();
 907
 908            let context_menu = ContextMenu::build(window, cx, |menu, _, _| {
 909                menu.context(self.focus_handle.clone()).map(|menu| {
 910                    if is_read_only {
 911                        menu.when(is_dir, |menu| {
 912                            menu.action("Search Inside", Box::new(NewSearchInDirectory))
 913                        })
 914                    } else {
 915                        menu.action("New File", Box::new(NewFile))
 916                            .action("New Folder", Box::new(NewDirectory))
 917                            .separator()
 918                            .when(is_local && cfg!(target_os = "macos"), |menu| {
 919                                menu.action("Reveal in Finder", Box::new(RevealInFileManager))
 920                            })
 921                            .when(is_local && cfg!(not(target_os = "macos")), |menu| {
 922                                menu.action("Reveal in File Manager", Box::new(RevealInFileManager))
 923                            })
 924                            .when(is_local, |menu| {
 925                                menu.action("Open in Default App", Box::new(OpenWithSystem))
 926                            })
 927                            .action("Open in Terminal", Box::new(OpenInTerminal))
 928                            .when(is_dir, |menu| {
 929                                menu.separator()
 930                                    .action("Find in Folder…", Box::new(NewSearchInDirectory))
 931                            })
 932                            .when(is_unfoldable, |menu| {
 933                                menu.action("Unfold Directory", Box::new(UnfoldDirectory))
 934                            })
 935                            .when(is_foldable, |menu| {
 936                                menu.action("Fold Directory", Box::new(FoldDirectory))
 937                            })
 938                            .when(should_show_compare, |menu| {
 939                                menu.separator()
 940                                    .action("Compare marked files", Box::new(CompareMarkedFiles))
 941                            })
 942                            .separator()
 943                            .action("Cut", Box::new(Cut))
 944                            .action("Copy", Box::new(Copy))
 945                            .action("Duplicate", Box::new(Duplicate))
 946                            // TODO: Paste should always be visible, cbut disabled when clipboard is empty
 947                            .action_disabled_when(
 948                                self.clipboard.as_ref().is_none(),
 949                                "Paste",
 950                                Box::new(Paste),
 951                            )
 952                            .separator()
 953                            .action("Copy Path", Box::new(zed_actions::workspace::CopyPath))
 954                            .action(
 955                                "Copy Relative Path",
 956                                Box::new(zed_actions::workspace::CopyRelativePath),
 957                            )
 958                            .separator()
 959                            .when(!should_hide_rename, |menu| {
 960                                menu.action("Rename", Box::new(Rename))
 961                            })
 962                            .when(!is_root & !is_remote, |menu| {
 963                                menu.action("Trash", Box::new(Trash { skip_prompt: false }))
 964                            })
 965                            .when(!is_root, |menu| {
 966                                menu.action("Delete", Box::new(Delete { skip_prompt: false }))
 967                            })
 968                            .when(!is_remote & is_root, |menu| {
 969                                menu.separator()
 970                                    .action(
 971                                        "Add Folder to Project…",
 972                                        Box::new(workspace::AddFolderToProject),
 973                                    )
 974                                    .action("Remove from Project", Box::new(RemoveFromProject))
 975                            })
 976                            .when(is_root, |menu| {
 977                                menu.separator()
 978                                    .action("Collapse All", Box::new(CollapseAllEntries))
 979                            })
 980                    }
 981                })
 982            });
 983
 984            window.focus(&context_menu.focus_handle(cx));
 985            let subscription = cx.subscribe(&context_menu, |this, _, _: &DismissEvent, cx| {
 986                this.context_menu.take();
 987                cx.notify();
 988            });
 989            self.context_menu = Some((context_menu, position, subscription));
 990        }
 991
 992        cx.notify();
 993    }
 994
 995    fn is_unfoldable(&self, entry: &Entry, worktree: &Worktree) -> bool {
 996        if !entry.is_dir() || self.unfolded_dir_ids.contains(&entry.id) {
 997            return false;
 998        }
 999
1000        if let Some(parent_path) = entry.path.parent() {
1001            let snapshot = worktree.snapshot();
1002            let mut child_entries = snapshot.child_entries(parent_path);
1003            if let Some(child) = child_entries.next()
1004                && child_entries.next().is_none()
1005            {
1006                return child.kind.is_dir();
1007            }
1008        };
1009        false
1010    }
1011
1012    fn is_foldable(&self, entry: &Entry, worktree: &Worktree) -> bool {
1013        if entry.is_dir() {
1014            let snapshot = worktree.snapshot();
1015
1016            let mut child_entries = snapshot.child_entries(&entry.path);
1017            if let Some(child) = child_entries.next()
1018                && child_entries.next().is_none()
1019            {
1020                return child.kind.is_dir();
1021            }
1022        }
1023        false
1024    }
1025
1026    fn expand_selected_entry(
1027        &mut self,
1028        _: &ExpandSelectedEntry,
1029        window: &mut Window,
1030        cx: &mut Context<Self>,
1031    ) {
1032        if let Some((worktree, entry)) = self.selected_entry(cx) {
1033            if let Some(folded_ancestors) = self.ancestors.get_mut(&entry.id)
1034                && folded_ancestors.current_ancestor_depth > 0
1035            {
1036                folded_ancestors.current_ancestor_depth -= 1;
1037                cx.notify();
1038                return;
1039            }
1040            if entry.is_dir() {
1041                let worktree_id = worktree.id();
1042                let entry_id = entry.id;
1043                let expanded_dir_ids =
1044                    if let Some(expanded_dir_ids) = self.expanded_dir_ids.get_mut(&worktree_id) {
1045                        expanded_dir_ids
1046                    } else {
1047                        return;
1048                    };
1049
1050                match expanded_dir_ids.binary_search(&entry_id) {
1051                    Ok(_) => self.select_next(&SelectNext, window, cx),
1052                    Err(ix) => {
1053                        self.project.update(cx, |project, cx| {
1054                            project.expand_entry(worktree_id, entry_id, cx);
1055                        });
1056
1057                        expanded_dir_ids.insert(ix, entry_id);
1058                        self.update_visible_entries(None, cx);
1059                        cx.notify();
1060                    }
1061                }
1062            }
1063        }
1064    }
1065
1066    fn collapse_selected_entry(
1067        &mut self,
1068        _: &CollapseSelectedEntry,
1069        _: &mut Window,
1070        cx: &mut Context<Self>,
1071    ) {
1072        let Some((worktree, entry)) = self.selected_entry_handle(cx) else {
1073            return;
1074        };
1075        self.collapse_entry(entry.clone(), worktree, cx)
1076    }
1077
1078    fn collapse_entry(&mut self, entry: Entry, worktree: Entity<Worktree>, cx: &mut Context<Self>) {
1079        let worktree = worktree.read(cx);
1080        if let Some(folded_ancestors) = self.ancestors.get_mut(&entry.id)
1081            && folded_ancestors.current_ancestor_depth + 1 < folded_ancestors.max_ancestor_depth()
1082        {
1083            folded_ancestors.current_ancestor_depth += 1;
1084            cx.notify();
1085            return;
1086        }
1087        let worktree_id = worktree.id();
1088        let expanded_dir_ids =
1089            if let Some(expanded_dir_ids) = self.expanded_dir_ids.get_mut(&worktree_id) {
1090                expanded_dir_ids
1091            } else {
1092                return;
1093            };
1094
1095        let mut entry = &entry;
1096        loop {
1097            let entry_id = entry.id;
1098            match expanded_dir_ids.binary_search(&entry_id) {
1099                Ok(ix) => {
1100                    expanded_dir_ids.remove(ix);
1101                    self.update_visible_entries(Some((worktree_id, entry_id)), cx);
1102                    cx.notify();
1103                    break;
1104                }
1105                Err(_) => {
1106                    if let Some(parent_entry) =
1107                        entry.path.parent().and_then(|p| worktree.entry_for_path(p))
1108                    {
1109                        entry = parent_entry;
1110                    } else {
1111                        break;
1112                    }
1113                }
1114            }
1115        }
1116    }
1117
1118    pub fn collapse_all_entries(
1119        &mut self,
1120        _: &CollapseAllEntries,
1121        _: &mut Window,
1122        cx: &mut Context<Self>,
1123    ) {
1124        // By keeping entries for fully collapsed worktrees, we avoid expanding them within update_visible_entries
1125        // (which is it's default behavior when there's no entry for a worktree in expanded_dir_ids).
1126        self.expanded_dir_ids
1127            .retain(|_, expanded_entries| expanded_entries.is_empty());
1128        self.update_visible_entries(None, cx);
1129        cx.notify();
1130    }
1131
1132    fn toggle_expanded(
1133        &mut self,
1134        entry_id: ProjectEntryId,
1135        window: &mut Window,
1136        cx: &mut Context<Self>,
1137    ) {
1138        if let Some(worktree_id) = self.project.read(cx).worktree_id_for_entry(entry_id, cx)
1139            && let Some(expanded_dir_ids) = self.expanded_dir_ids.get_mut(&worktree_id)
1140        {
1141            self.project.update(cx, |project, cx| {
1142                match expanded_dir_ids.binary_search(&entry_id) {
1143                    Ok(ix) => {
1144                        expanded_dir_ids.remove(ix);
1145                    }
1146                    Err(ix) => {
1147                        project.expand_entry(worktree_id, entry_id, cx);
1148                        expanded_dir_ids.insert(ix, entry_id);
1149                    }
1150                }
1151            });
1152            self.update_visible_entries(Some((worktree_id, entry_id)), cx);
1153            window.focus(&self.focus_handle);
1154            cx.notify();
1155        }
1156    }
1157
1158    fn toggle_expand_all(
1159        &mut self,
1160        entry_id: ProjectEntryId,
1161        window: &mut Window,
1162        cx: &mut Context<Self>,
1163    ) {
1164        if let Some(worktree_id) = self.project.read(cx).worktree_id_for_entry(entry_id, cx)
1165            && let Some(expanded_dir_ids) = self.expanded_dir_ids.get_mut(&worktree_id)
1166        {
1167            match expanded_dir_ids.binary_search(&entry_id) {
1168                Ok(_ix) => {
1169                    self.collapse_all_for_entry(worktree_id, entry_id, cx);
1170                }
1171                Err(_ix) => {
1172                    self.expand_all_for_entry(worktree_id, entry_id, cx);
1173                }
1174            }
1175            self.update_visible_entries(Some((worktree_id, entry_id)), cx);
1176            window.focus(&self.focus_handle);
1177            cx.notify();
1178        }
1179    }
1180
1181    fn expand_all_for_entry(
1182        &mut self,
1183        worktree_id: WorktreeId,
1184        entry_id: ProjectEntryId,
1185        cx: &mut Context<Self>,
1186    ) {
1187        self.project.update(cx, |project, cx| {
1188            if let Some((worktree, expanded_dir_ids)) = project
1189                .worktree_for_id(worktree_id, cx)
1190                .zip(self.expanded_dir_ids.get_mut(&worktree_id))
1191            {
1192                if let Some(task) = project.expand_all_for_entry(worktree_id, entry_id, cx) {
1193                    task.detach();
1194                }
1195
1196                let worktree = worktree.read(cx);
1197
1198                if let Some(mut entry) = worktree.entry_for_id(entry_id) {
1199                    loop {
1200                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
1201                            expanded_dir_ids.insert(ix, entry.id);
1202                        }
1203
1204                        if let Some(parent_entry) =
1205                            entry.path.parent().and_then(|p| worktree.entry_for_path(p))
1206                        {
1207                            entry = parent_entry;
1208                        } else {
1209                            break;
1210                        }
1211                    }
1212                }
1213            }
1214        });
1215    }
1216
1217    fn collapse_all_for_entry(
1218        &mut self,
1219        worktree_id: WorktreeId,
1220        entry_id: ProjectEntryId,
1221        cx: &mut Context<Self>,
1222    ) {
1223        self.project.update(cx, |project, cx| {
1224            if let Some((worktree, expanded_dir_ids)) = project
1225                .worktree_for_id(worktree_id, cx)
1226                .zip(self.expanded_dir_ids.get_mut(&worktree_id))
1227            {
1228                let worktree = worktree.read(cx);
1229                let mut dirs_to_collapse = vec![entry_id];
1230                let auto_fold_enabled = ProjectPanelSettings::get_global(cx).auto_fold_dirs;
1231                while let Some(current_id) = dirs_to_collapse.pop() {
1232                    let Some(current_entry) = worktree.entry_for_id(current_id) else {
1233                        continue;
1234                    };
1235                    if let Ok(ix) = expanded_dir_ids.binary_search(&current_id) {
1236                        expanded_dir_ids.remove(ix);
1237                    }
1238                    if auto_fold_enabled {
1239                        self.unfolded_dir_ids.remove(&current_id);
1240                    }
1241                    for child in worktree.child_entries(&current_entry.path) {
1242                        if child.is_dir() {
1243                            dirs_to_collapse.push(child.id);
1244                        }
1245                    }
1246                }
1247            }
1248        });
1249    }
1250
1251    fn select_previous(&mut self, _: &SelectPrevious, window: &mut Window, cx: &mut Context<Self>) {
1252        if let Some(edit_state) = &self.edit_state
1253            && edit_state.processing_filename.is_none()
1254        {
1255            self.filename_editor.update(cx, |editor, cx| {
1256                editor.move_to_beginning_of_line(
1257                    &editor::actions::MoveToBeginningOfLine {
1258                        stop_at_soft_wraps: false,
1259                        stop_at_indent: false,
1260                    },
1261                    window,
1262                    cx,
1263                );
1264            });
1265            return;
1266        }
1267        if let Some(selection) = self.selection {
1268            let (mut worktree_ix, mut entry_ix, _) =
1269                self.index_for_selection(selection).unwrap_or_default();
1270            if entry_ix > 0 {
1271                entry_ix -= 1;
1272            } else if worktree_ix > 0 {
1273                worktree_ix -= 1;
1274                entry_ix = self.visible_entries[worktree_ix].entries.len() - 1;
1275            } else {
1276                return;
1277            }
1278
1279            let VisibleEntriesForWorktree {
1280                worktree_id,
1281                entries,
1282                ..
1283            } = &self.visible_entries[worktree_ix];
1284            let selection = SelectedEntry {
1285                worktree_id: *worktree_id,
1286                entry_id: entries[entry_ix].id,
1287            };
1288            self.selection = Some(selection);
1289            if window.modifiers().shift {
1290                self.marked_entries.push(selection);
1291            }
1292            self.autoscroll(cx);
1293            cx.notify();
1294        } else {
1295            self.select_first(&SelectFirst {}, window, cx);
1296        }
1297    }
1298
1299    fn confirm(&mut self, _: &Confirm, window: &mut Window, cx: &mut Context<Self>) {
1300        if let Some(task) = self.confirm_edit(window, cx) {
1301            task.detach_and_notify_err(window, cx);
1302        }
1303    }
1304
1305    fn open(&mut self, _: &Open, window: &mut Window, cx: &mut Context<Self>) {
1306        let preview_tabs_enabled = PreviewTabsSettings::get_global(cx).enabled;
1307        self.open_internal(true, !preview_tabs_enabled, window, cx);
1308    }
1309
1310    fn open_permanent(&mut self, _: &OpenPermanent, window: &mut Window, cx: &mut Context<Self>) {
1311        self.open_internal(false, true, window, cx);
1312    }
1313
1314    fn open_internal(
1315        &mut self,
1316        allow_preview: bool,
1317        focus_opened_item: bool,
1318        window: &mut Window,
1319        cx: &mut Context<Self>,
1320    ) {
1321        if let Some((_, entry)) = self.selected_entry(cx) {
1322            if entry.is_file() {
1323                self.open_entry(entry.id, focus_opened_item, allow_preview, cx);
1324                cx.notify();
1325            } else {
1326                self.toggle_expanded(entry.id, window, cx);
1327            }
1328        }
1329    }
1330
1331    fn populate_validation_error(&mut self, cx: &mut Context<Self>) {
1332        let edit_state = match self.edit_state.as_mut() {
1333            Some(state) => state,
1334            None => return,
1335        };
1336        let filename = self.filename_editor.read(cx).text(cx);
1337        if !filename.is_empty() {
1338            if let Some(worktree) = self
1339                .project
1340                .read(cx)
1341                .worktree_for_id(edit_state.worktree_id, cx)
1342                && let Some(entry) = worktree.read(cx).entry_for_id(edit_state.entry_id)
1343            {
1344                let mut already_exists = false;
1345                if edit_state.is_new_entry() {
1346                    let new_path = entry.path.join(filename.trim_start_matches('/'));
1347                    if worktree
1348                        .read(cx)
1349                        .entry_for_path(new_path.as_path())
1350                        .is_some()
1351                    {
1352                        already_exists = true;
1353                    }
1354                } else {
1355                    let new_path = if let Some(parent) = entry.path.clone().parent() {
1356                        parent.join(&filename)
1357                    } else {
1358                        filename.clone().into()
1359                    };
1360                    if let Some(existing) = worktree.read(cx).entry_for_path(new_path.as_path())
1361                        && existing.id != entry.id
1362                    {
1363                        already_exists = true;
1364                    }
1365                };
1366                if already_exists {
1367                    edit_state.validation_state = ValidationState::Error(format!(
1368                        "File or directory '{}' already exists at location. Please choose a different name.",
1369                        filename
1370                    ));
1371                    cx.notify();
1372                    return;
1373                }
1374            }
1375            let trimmed_filename = filename.trim();
1376            if trimmed_filename.is_empty() {
1377                edit_state.validation_state =
1378                    ValidationState::Error("File or directory name cannot be empty.".to_string());
1379                cx.notify();
1380                return;
1381            }
1382            if trimmed_filename != filename {
1383                edit_state.validation_state = ValidationState::Warning(
1384                    "File or directory name contains leading or trailing whitespace.".to_string(),
1385                );
1386                cx.notify();
1387                return;
1388            }
1389        }
1390        edit_state.validation_state = ValidationState::None;
1391        cx.notify();
1392    }
1393
1394    fn confirm_edit(
1395        &mut self,
1396        window: &mut Window,
1397        cx: &mut Context<Self>,
1398    ) -> Option<Task<Result<()>>> {
1399        let edit_state = self.edit_state.as_mut()?;
1400        let worktree_id = edit_state.worktree_id;
1401        let is_new_entry = edit_state.is_new_entry();
1402        let filename = self.filename_editor.read(cx).text(cx);
1403        if filename.trim().is_empty() {
1404            return None;
1405        }
1406        #[cfg(not(target_os = "windows"))]
1407        let filename_indicates_dir = filename.ends_with("/");
1408        // On Windows, path separator could be either `/` or `\`.
1409        #[cfg(target_os = "windows")]
1410        let filename_indicates_dir = filename.ends_with("/") || filename.ends_with("\\");
1411        edit_state.is_dir =
1412            edit_state.is_dir || (edit_state.is_new_entry() && filename_indicates_dir);
1413        let is_dir = edit_state.is_dir;
1414        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
1415        let entry = worktree.read(cx).entry_for_id(edit_state.entry_id)?.clone();
1416
1417        let edit_task;
1418        let edited_entry_id;
1419        if is_new_entry {
1420            self.selection = Some(SelectedEntry {
1421                worktree_id,
1422                entry_id: NEW_ENTRY_ID,
1423            });
1424            let new_path = entry.path.join(filename.trim_start_matches('/'));
1425            if worktree
1426                .read(cx)
1427                .entry_for_path(new_path.as_path())
1428                .is_some()
1429            {
1430                return None;
1431            }
1432
1433            edited_entry_id = NEW_ENTRY_ID;
1434            edit_task = self.project.update(cx, |project, cx| {
1435                project.create_entry((worktree_id, &new_path), is_dir, cx)
1436            });
1437        } else {
1438            let new_path = if let Some(parent) = entry.path.clone().parent() {
1439                parent.join(&filename)
1440            } else {
1441                filename.clone().into()
1442            };
1443            if let Some(existing) = worktree.read(cx).entry_for_path(new_path.as_path()) {
1444                if existing.id == entry.id {
1445                    window.focus(&self.focus_handle);
1446                }
1447                return None;
1448            }
1449            edited_entry_id = entry.id;
1450            edit_task = self.project.update(cx, |project, cx| {
1451                project.rename_entry(entry.id, new_path.as_path(), cx)
1452            });
1453        };
1454
1455        window.focus(&self.focus_handle);
1456        edit_state.processing_filename = Some(filename);
1457        cx.notify();
1458
1459        Some(cx.spawn_in(window, async move |project_panel, cx| {
1460            let new_entry = edit_task.await;
1461            project_panel.update(cx, |project_panel, cx| {
1462                project_panel.edit_state = None;
1463                cx.notify();
1464            })?;
1465
1466            match new_entry {
1467                Err(e) => {
1468                    project_panel.update( cx, |project_panel, cx| {
1469                        project_panel.marked_entries.clear();
1470                        project_panel.update_visible_entries(None,  cx);
1471                    }).ok();
1472                    Err(e)?;
1473                }
1474                Ok(CreatedEntry::Included(new_entry)) => {
1475                    project_panel.update( cx, |project_panel, cx| {
1476                        if let Some(selection) = &mut project_panel.selection
1477                            && selection.entry_id == edited_entry_id {
1478                                selection.worktree_id = worktree_id;
1479                                selection.entry_id = new_entry.id;
1480                                project_panel.marked_entries.clear();
1481                                project_panel.expand_to_selection(cx);
1482                            }
1483                        project_panel.update_visible_entries(None, cx);
1484                        if is_new_entry && !is_dir {
1485                            project_panel.open_entry(new_entry.id, true, false, cx);
1486                        }
1487                        cx.notify();
1488                    })?;
1489                }
1490                Ok(CreatedEntry::Excluded { abs_path }) => {
1491                    if let Some(open_task) = project_panel
1492                        .update_in( cx, |project_panel, window, cx| {
1493                            project_panel.marked_entries.clear();
1494                            project_panel.update_visible_entries(None,  cx);
1495
1496                            if is_dir {
1497                                project_panel.project.update(cx, |_, cx| {
1498                                    cx.emit(project::Event::Toast {
1499                                        notification_id: "excluded-directory".into(),
1500                                        message: format!("Created an excluded directory at {abs_path:?}.\nAlter `file_scan_exclusions` in the settings to show it in the panel")
1501                                    })
1502                                });
1503                                None
1504                            } else {
1505                                project_panel
1506                                    .workspace
1507                                    .update(cx, |workspace, cx| {
1508                                        workspace.open_abs_path(abs_path, OpenOptions { visible: Some(OpenVisible::All), ..Default::default() }, window, cx)
1509                                    })
1510                                    .ok()
1511                            }
1512                        })
1513                        .ok()
1514                        .flatten()
1515                    {
1516                        let _ = open_task.await?;
1517                    }
1518                }
1519            }
1520            Ok(())
1521        }))
1522    }
1523
1524    fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
1525        if cx.stop_active_drag(window) {
1526            self.drag_target_entry.take();
1527            self.hover_expand_task.take();
1528            return;
1529        }
1530
1531        let previous_edit_state = self.edit_state.take();
1532        self.update_visible_entries(None, cx);
1533        self.marked_entries.clear();
1534
1535        if let Some(previously_focused) =
1536            previous_edit_state.and_then(|edit_state| edit_state.previously_focused)
1537        {
1538            self.selection = Some(previously_focused);
1539            self.autoscroll(cx);
1540        }
1541
1542        window.focus(&self.focus_handle);
1543        cx.notify();
1544    }
1545
1546    fn open_entry(
1547        &mut self,
1548        entry_id: ProjectEntryId,
1549        focus_opened_item: bool,
1550        allow_preview: bool,
1551
1552        cx: &mut Context<Self>,
1553    ) {
1554        cx.emit(Event::OpenedEntry {
1555            entry_id,
1556            focus_opened_item,
1557            allow_preview,
1558        });
1559    }
1560
1561    fn split_entry(&mut self, entry_id: ProjectEntryId, cx: &mut Context<Self>) {
1562        cx.emit(Event::SplitEntry { entry_id });
1563    }
1564
1565    fn new_file(&mut self, _: &NewFile, window: &mut Window, cx: &mut Context<Self>) {
1566        self.add_entry(false, window, cx)
1567    }
1568
1569    fn new_directory(&mut self, _: &NewDirectory, window: &mut Window, cx: &mut Context<Self>) {
1570        self.add_entry(true, window, cx)
1571    }
1572
1573    fn add_entry(&mut self, is_dir: bool, window: &mut Window, cx: &mut Context<Self>) {
1574        let Some((worktree_id, entry_id)) = self
1575            .selection
1576            .map(|entry| (entry.worktree_id, entry.entry_id))
1577            .or_else(|| {
1578                let entry_id = self.last_worktree_root_id?;
1579                let worktree_id = self
1580                    .project
1581                    .read(cx)
1582                    .worktree_for_entry(entry_id, cx)?
1583                    .read(cx)
1584                    .id();
1585
1586                self.selection = Some(SelectedEntry {
1587                    worktree_id,
1588                    entry_id,
1589                });
1590
1591                Some((worktree_id, entry_id))
1592            })
1593        else {
1594            return;
1595        };
1596
1597        let directory_id;
1598        let new_entry_id = self.resolve_entry(entry_id);
1599        if let Some((worktree, expanded_dir_ids)) = self
1600            .project
1601            .read(cx)
1602            .worktree_for_id(worktree_id, cx)
1603            .zip(self.expanded_dir_ids.get_mut(&worktree_id))
1604        {
1605            let worktree = worktree.read(cx);
1606            if let Some(mut entry) = worktree.entry_for_id(new_entry_id) {
1607                loop {
1608                    if entry.is_dir() {
1609                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
1610                            expanded_dir_ids.insert(ix, entry.id);
1611                        }
1612                        directory_id = entry.id;
1613                        break;
1614                    } else {
1615                        if let Some(parent_path) = entry.path.parent()
1616                            && let Some(parent_entry) = worktree.entry_for_path(parent_path)
1617                        {
1618                            entry = parent_entry;
1619                            continue;
1620                        }
1621                        return;
1622                    }
1623                }
1624            } else {
1625                return;
1626            };
1627        } else {
1628            return;
1629        };
1630
1631        self.marked_entries.clear();
1632        self.edit_state = Some(EditState {
1633            worktree_id,
1634            entry_id: directory_id,
1635            leaf_entry_id: None,
1636            is_dir,
1637            processing_filename: None,
1638            previously_focused: self.selection,
1639            depth: 0,
1640            validation_state: ValidationState::None,
1641        });
1642        self.filename_editor.update(cx, |editor, cx| {
1643            editor.clear(window, cx);
1644            window.focus(&editor.focus_handle(cx));
1645        });
1646        self.update_visible_entries(Some((worktree_id, NEW_ENTRY_ID)), cx);
1647        self.autoscroll(cx);
1648        cx.notify();
1649    }
1650
1651    fn unflatten_entry_id(&self, leaf_entry_id: ProjectEntryId) -> ProjectEntryId {
1652        if let Some(ancestors) = self.ancestors.get(&leaf_entry_id) {
1653            ancestors
1654                .ancestors
1655                .get(ancestors.current_ancestor_depth)
1656                .copied()
1657                .unwrap_or(leaf_entry_id)
1658        } else {
1659            leaf_entry_id
1660        }
1661    }
1662
1663    fn rename_impl(
1664        &mut self,
1665        selection: Option<Range<usize>>,
1666        window: &mut Window,
1667        cx: &mut Context<Self>,
1668    ) {
1669        if let Some(SelectedEntry {
1670            worktree_id,
1671            entry_id,
1672        }) = self.selection
1673            && let Some(worktree) = self.project.read(cx).worktree_for_id(worktree_id, cx)
1674        {
1675            let sub_entry_id = self.unflatten_entry_id(entry_id);
1676            if let Some(entry) = worktree.read(cx).entry_for_id(sub_entry_id) {
1677                #[cfg(target_os = "windows")]
1678                if Some(entry) == worktree.read(cx).root_entry() {
1679                    return;
1680                }
1681
1682                if Some(entry) == worktree.read(cx).root_entry() {
1683                    let settings = ProjectPanelSettings::get_global(cx);
1684                    let visible_worktrees_count =
1685                        self.project.read(cx).visible_worktrees(cx).count();
1686                    if settings.hide_root && visible_worktrees_count == 1 {
1687                        return;
1688                    }
1689                }
1690
1691                self.edit_state = Some(EditState {
1692                    worktree_id,
1693                    entry_id: sub_entry_id,
1694                    leaf_entry_id: Some(entry_id),
1695                    is_dir: entry.is_dir(),
1696                    processing_filename: None,
1697                    previously_focused: None,
1698                    depth: 0,
1699                    validation_state: ValidationState::None,
1700                });
1701                let file_name = entry
1702                    .path
1703                    .file_name()
1704                    .map(|s| s.to_string_lossy())
1705                    .unwrap_or_default()
1706                    .to_string();
1707                let selection = selection.unwrap_or_else(|| {
1708                    let file_stem = entry.path.file_stem().map(|s| s.to_string_lossy());
1709                    let selection_end =
1710                        file_stem.map_or(file_name.len(), |file_stem| file_stem.len());
1711                    0..selection_end
1712                });
1713                self.filename_editor.update(cx, |editor, cx| {
1714                    editor.set_text(file_name, window, cx);
1715                    editor.change_selections(Default::default(), window, cx, |s| {
1716                        s.select_ranges([selection])
1717                    });
1718                    window.focus(&editor.focus_handle(cx));
1719                });
1720                self.update_visible_entries(None, cx);
1721                self.autoscroll(cx);
1722                cx.notify();
1723            }
1724        }
1725    }
1726
1727    fn rename(&mut self, _: &Rename, window: &mut Window, cx: &mut Context<Self>) {
1728        self.rename_impl(None, window, cx);
1729    }
1730
1731    fn trash(&mut self, action: &Trash, window: &mut Window, cx: &mut Context<Self>) {
1732        self.remove(true, action.skip_prompt, window, cx);
1733    }
1734
1735    fn delete(&mut self, action: &Delete, window: &mut Window, cx: &mut Context<Self>) {
1736        self.remove(false, action.skip_prompt, window, cx);
1737    }
1738
1739    fn remove(
1740        &mut self,
1741        trash: bool,
1742        skip_prompt: bool,
1743        window: &mut Window,
1744        cx: &mut Context<ProjectPanel>,
1745    ) {
1746        maybe!({
1747            let items_to_delete = self.disjoint_entries(cx);
1748            if items_to_delete.is_empty() {
1749                return None;
1750            }
1751            let project = self.project.read(cx);
1752
1753            let mut dirty_buffers = 0;
1754            let file_paths = items_to_delete
1755                .iter()
1756                .filter_map(|selection| {
1757                    let project_path = project.path_for_entry(selection.entry_id, cx)?;
1758                    dirty_buffers +=
1759                        project.dirty_buffers(cx).any(|path| path == project_path) as usize;
1760                    Some((
1761                        selection.entry_id,
1762                        project_path
1763                            .path
1764                            .file_name()?
1765                            .to_string_lossy()
1766                            .into_owned(),
1767                    ))
1768                })
1769                .collect::<Vec<_>>();
1770            if file_paths.is_empty() {
1771                return None;
1772            }
1773            let answer = if !skip_prompt {
1774                let operation = if trash { "Trash" } else { "Delete" };
1775                let prompt = match file_paths.first() {
1776                    Some((_, path)) if file_paths.len() == 1 => {
1777                        let unsaved_warning = if dirty_buffers > 0 {
1778                            "\n\nIt has unsaved changes, which will be lost."
1779                        } else {
1780                            ""
1781                        };
1782
1783                        format!("{operation} {path}?{unsaved_warning}")
1784                    }
1785                    _ => {
1786                        const CUTOFF_POINT: usize = 10;
1787                        let names = if file_paths.len() > CUTOFF_POINT {
1788                            let truncated_path_counts = file_paths.len() - CUTOFF_POINT;
1789                            let mut paths = file_paths
1790                                .iter()
1791                                .map(|(_, path)| path.clone())
1792                                .take(CUTOFF_POINT)
1793                                .collect::<Vec<_>>();
1794                            paths.truncate(CUTOFF_POINT);
1795                            if truncated_path_counts == 1 {
1796                                paths.push(".. 1 file not shown".into());
1797                            } else {
1798                                paths.push(format!(".. {} files not shown", truncated_path_counts));
1799                            }
1800                            paths
1801                        } else {
1802                            file_paths.iter().map(|(_, path)| path.clone()).collect()
1803                        };
1804                        let unsaved_warning = if dirty_buffers == 0 {
1805                            String::new()
1806                        } else if dirty_buffers == 1 {
1807                            "\n\n1 of these has unsaved changes, which will be lost.".to_string()
1808                        } else {
1809                            format!(
1810                                "\n\n{dirty_buffers} of these have unsaved changes, which will be lost."
1811                            )
1812                        };
1813
1814                        format!(
1815                            "Do you want to {} the following {} files?\n{}{unsaved_warning}",
1816                            operation.to_lowercase(),
1817                            file_paths.len(),
1818                            names.join("\n")
1819                        )
1820                    }
1821                };
1822                Some(window.prompt(PromptLevel::Info, &prompt, None, &[operation, "Cancel"], cx))
1823            } else {
1824                None
1825            };
1826            let next_selection = self.find_next_selection_after_deletion(items_to_delete, cx);
1827            cx.spawn_in(window, async move |panel, cx| {
1828                if let Some(answer) = answer
1829                    && answer.await != Ok(0)
1830                {
1831                    return anyhow::Ok(());
1832                }
1833                for (entry_id, _) in file_paths {
1834                    panel
1835                        .update(cx, |panel, cx| {
1836                            panel
1837                                .project
1838                                .update(cx, |project, cx| project.delete_entry(entry_id, trash, cx))
1839                                .context("no such entry")
1840                        })??
1841                        .await?;
1842                }
1843                panel.update_in(cx, |panel, window, cx| {
1844                    if let Some(next_selection) = next_selection {
1845                        panel.selection = Some(next_selection);
1846                        panel.autoscroll(cx);
1847                    } else {
1848                        panel.select_last(&SelectLast {}, window, cx);
1849                    }
1850                })?;
1851                Ok(())
1852            })
1853            .detach_and_log_err(cx);
1854            Some(())
1855        });
1856    }
1857
1858    fn find_next_selection_after_deletion(
1859        &self,
1860        sanitized_entries: BTreeSet<SelectedEntry>,
1861        cx: &mut Context<Self>,
1862    ) -> Option<SelectedEntry> {
1863        if sanitized_entries.is_empty() {
1864            return None;
1865        }
1866        let project = self.project.read(cx);
1867        let (worktree_id, worktree) = sanitized_entries
1868            .iter()
1869            .map(|entry| entry.worktree_id)
1870            .filter_map(|id| project.worktree_for_id(id, cx).map(|w| (id, w.read(cx))))
1871            .max_by(|(_, a), (_, b)| a.root_name().cmp(b.root_name()))?;
1872        let git_store = project.git_store().read(cx);
1873
1874        let marked_entries_in_worktree = sanitized_entries
1875            .iter()
1876            .filter(|e| e.worktree_id == worktree_id)
1877            .collect::<HashSet<_>>();
1878        let latest_entry = marked_entries_in_worktree
1879            .iter()
1880            .max_by(|a, b| {
1881                match (
1882                    worktree.entry_for_id(a.entry_id),
1883                    worktree.entry_for_id(b.entry_id),
1884                ) {
1885                    (Some(a), Some(b)) => {
1886                        compare_paths((&a.path, a.is_file()), (&b.path, b.is_file()))
1887                    }
1888                    _ => cmp::Ordering::Equal,
1889                }
1890            })
1891            .and_then(|e| worktree.entry_for_id(e.entry_id))?;
1892
1893        let parent_path = latest_entry.path.parent()?;
1894        let parent_entry = worktree.entry_for_path(parent_path)?;
1895
1896        // Remove all siblings that are being deleted except the last marked entry
1897        let repo_snapshots = git_store.repo_snapshots(cx);
1898        let worktree_snapshot = worktree.snapshot();
1899        let hide_gitignore = ProjectPanelSettings::get_global(cx).hide_gitignore;
1900        let mut siblings: Vec<_> =
1901            ChildEntriesGitIter::new(&repo_snapshots, &worktree_snapshot, parent_path)
1902                .filter(|sibling| {
1903                    (sibling.id == latest_entry.id)
1904                        || (!marked_entries_in_worktree.contains(&&SelectedEntry {
1905                            worktree_id,
1906                            entry_id: sibling.id,
1907                        }) && (!hide_gitignore || !sibling.is_ignored))
1908                })
1909                .map(|entry| entry.to_owned())
1910                .collect();
1911
1912        project::sort_worktree_entries(&mut siblings);
1913        let sibling_entry_index = siblings
1914            .iter()
1915            .position(|sibling| sibling.id == latest_entry.id)?;
1916
1917        if let Some(next_sibling) = sibling_entry_index
1918            .checked_add(1)
1919            .and_then(|i| siblings.get(i))
1920        {
1921            return Some(SelectedEntry {
1922                worktree_id,
1923                entry_id: next_sibling.id,
1924            });
1925        }
1926        if let Some(prev_sibling) = sibling_entry_index
1927            .checked_sub(1)
1928            .and_then(|i| siblings.get(i))
1929        {
1930            return Some(SelectedEntry {
1931                worktree_id,
1932                entry_id: prev_sibling.id,
1933            });
1934        }
1935        // No neighbour sibling found, fall back to parent
1936        Some(SelectedEntry {
1937            worktree_id,
1938            entry_id: parent_entry.id,
1939        })
1940    }
1941
1942    fn unfold_directory(&mut self, _: &UnfoldDirectory, _: &mut Window, cx: &mut Context<Self>) {
1943        if let Some((worktree, entry)) = self.selected_entry(cx) {
1944            self.unfolded_dir_ids.insert(entry.id);
1945
1946            let snapshot = worktree.snapshot();
1947            let mut parent_path = entry.path.parent();
1948            while let Some(path) = parent_path {
1949                if let Some(parent_entry) = worktree.entry_for_path(path) {
1950                    let mut children_iter = snapshot.child_entries(path);
1951
1952                    if children_iter.by_ref().take(2).count() > 1 {
1953                        break;
1954                    }
1955
1956                    self.unfolded_dir_ids.insert(parent_entry.id);
1957                    parent_path = path.parent();
1958                } else {
1959                    break;
1960                }
1961            }
1962
1963            self.update_visible_entries(None, cx);
1964            self.autoscroll(cx);
1965            cx.notify();
1966        }
1967    }
1968
1969    fn fold_directory(&mut self, _: &FoldDirectory, _: &mut Window, cx: &mut Context<Self>) {
1970        if let Some((worktree, entry)) = self.selected_entry(cx) {
1971            self.unfolded_dir_ids.remove(&entry.id);
1972
1973            let snapshot = worktree.snapshot();
1974            let mut path = &*entry.path;
1975            loop {
1976                let mut child_entries_iter = snapshot.child_entries(path);
1977                if let Some(child) = child_entries_iter.next() {
1978                    if child_entries_iter.next().is_none() && child.is_dir() {
1979                        self.unfolded_dir_ids.remove(&child.id);
1980                        path = &*child.path;
1981                    } else {
1982                        break;
1983                    }
1984                } else {
1985                    break;
1986                }
1987            }
1988
1989            self.update_visible_entries(None, cx);
1990            self.autoscroll(cx);
1991            cx.notify();
1992        }
1993    }
1994
1995    fn select_next(&mut self, _: &SelectNext, window: &mut Window, cx: &mut Context<Self>) {
1996        if let Some(edit_state) = &self.edit_state
1997            && edit_state.processing_filename.is_none()
1998        {
1999            self.filename_editor.update(cx, |editor, cx| {
2000                editor.move_to_end_of_line(
2001                    &editor::actions::MoveToEndOfLine {
2002                        stop_at_soft_wraps: false,
2003                    },
2004                    window,
2005                    cx,
2006                );
2007            });
2008            return;
2009        }
2010        if let Some(selection) = self.selection {
2011            let (mut worktree_ix, mut entry_ix, _) =
2012                self.index_for_selection(selection).unwrap_or_default();
2013            if let Some(worktree_entries) =
2014                self.visible_entries.get(worktree_ix).map(|v| &v.entries)
2015            {
2016                if entry_ix + 1 < worktree_entries.len() {
2017                    entry_ix += 1;
2018                } else {
2019                    worktree_ix += 1;
2020                    entry_ix = 0;
2021                }
2022            }
2023
2024            if let Some(VisibleEntriesForWorktree {
2025                worktree_id,
2026                entries,
2027                ..
2028            }) = self.visible_entries.get(worktree_ix)
2029                && let Some(entry) = entries.get(entry_ix)
2030            {
2031                let selection = SelectedEntry {
2032                    worktree_id: *worktree_id,
2033                    entry_id: entry.id,
2034                };
2035                self.selection = Some(selection);
2036                if window.modifiers().shift {
2037                    self.marked_entries.push(selection);
2038                }
2039
2040                self.autoscroll(cx);
2041                cx.notify();
2042            }
2043        } else {
2044            self.select_first(&SelectFirst {}, window, cx);
2045        }
2046    }
2047
2048    fn select_prev_diagnostic(
2049        &mut self,
2050        action: &SelectPrevDiagnostic,
2051        _: &mut Window,
2052        cx: &mut Context<Self>,
2053    ) {
2054        let selection = self.find_entry(
2055            self.selection.as_ref(),
2056            true,
2057            |entry, worktree_id| {
2058                (self.selection.is_none()
2059                    || self.selection.is_some_and(|selection| {
2060                        if selection.worktree_id == worktree_id {
2061                            selection.entry_id != entry.id
2062                        } else {
2063                            true
2064                        }
2065                    }))
2066                    && entry.is_file()
2067                    && self
2068                        .diagnostics
2069                        .get(&(worktree_id, entry.path.to_path_buf()))
2070                        .is_some_and(|severity| action.severity.matches(*severity))
2071            },
2072            cx,
2073        );
2074
2075        if let Some(selection) = selection {
2076            self.selection = Some(selection);
2077            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2078            self.update_visible_entries(Some((selection.worktree_id, selection.entry_id)), cx);
2079            self.autoscroll(cx);
2080            cx.notify();
2081        }
2082    }
2083
2084    fn select_next_diagnostic(
2085        &mut self,
2086        action: &SelectNextDiagnostic,
2087        _: &mut Window,
2088        cx: &mut Context<Self>,
2089    ) {
2090        let selection = self.find_entry(
2091            self.selection.as_ref(),
2092            false,
2093            |entry, worktree_id| {
2094                (self.selection.is_none()
2095                    || self.selection.is_some_and(|selection| {
2096                        if selection.worktree_id == worktree_id {
2097                            selection.entry_id != entry.id
2098                        } else {
2099                            true
2100                        }
2101                    }))
2102                    && entry.is_file()
2103                    && self
2104                        .diagnostics
2105                        .get(&(worktree_id, entry.path.to_path_buf()))
2106                        .is_some_and(|severity| action.severity.matches(*severity))
2107            },
2108            cx,
2109        );
2110
2111        if let Some(selection) = selection {
2112            self.selection = Some(selection);
2113            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2114            self.update_visible_entries(Some((selection.worktree_id, selection.entry_id)), cx);
2115            self.autoscroll(cx);
2116            cx.notify();
2117        }
2118    }
2119
2120    fn select_prev_git_entry(
2121        &mut self,
2122        _: &SelectPrevGitEntry,
2123        _: &mut Window,
2124        cx: &mut Context<Self>,
2125    ) {
2126        let selection = self.find_entry(
2127            self.selection.as_ref(),
2128            true,
2129            |entry, worktree_id| {
2130                (self.selection.is_none()
2131                    || self.selection.is_some_and(|selection| {
2132                        if selection.worktree_id == worktree_id {
2133                            selection.entry_id != entry.id
2134                        } else {
2135                            true
2136                        }
2137                    }))
2138                    && entry.is_file()
2139                    && entry.git_summary.index.modified + entry.git_summary.worktree.modified > 0
2140            },
2141            cx,
2142        );
2143
2144        if let Some(selection) = selection {
2145            self.selection = Some(selection);
2146            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2147            self.update_visible_entries(Some((selection.worktree_id, selection.entry_id)), cx);
2148            self.autoscroll(cx);
2149            cx.notify();
2150        }
2151    }
2152
2153    fn select_prev_directory(
2154        &mut self,
2155        _: &SelectPrevDirectory,
2156        _: &mut Window,
2157        cx: &mut Context<Self>,
2158    ) {
2159        let selection = self.find_visible_entry(
2160            self.selection.as_ref(),
2161            true,
2162            |entry, worktree_id| {
2163                (self.selection.is_none()
2164                    || self.selection.is_some_and(|selection| {
2165                        if selection.worktree_id == worktree_id {
2166                            selection.entry_id != entry.id
2167                        } else {
2168                            true
2169                        }
2170                    }))
2171                    && entry.is_dir()
2172            },
2173            cx,
2174        );
2175
2176        if let Some(selection) = selection {
2177            self.selection = Some(selection);
2178            self.autoscroll(cx);
2179            cx.notify();
2180        }
2181    }
2182
2183    fn select_next_directory(
2184        &mut self,
2185        _: &SelectNextDirectory,
2186        _: &mut Window,
2187        cx: &mut Context<Self>,
2188    ) {
2189        let selection = self.find_visible_entry(
2190            self.selection.as_ref(),
2191            false,
2192            |entry, worktree_id| {
2193                (self.selection.is_none()
2194                    || self.selection.is_some_and(|selection| {
2195                        if selection.worktree_id == worktree_id {
2196                            selection.entry_id != entry.id
2197                        } else {
2198                            true
2199                        }
2200                    }))
2201                    && entry.is_dir()
2202            },
2203            cx,
2204        );
2205
2206        if let Some(selection) = selection {
2207            self.selection = Some(selection);
2208            self.autoscroll(cx);
2209            cx.notify();
2210        }
2211    }
2212
2213    fn select_next_git_entry(
2214        &mut self,
2215        _: &SelectNextGitEntry,
2216        _: &mut Window,
2217        cx: &mut Context<Self>,
2218    ) {
2219        let selection = self.find_entry(
2220            self.selection.as_ref(),
2221            false,
2222            |entry, worktree_id| {
2223                (self.selection.is_none()
2224                    || self.selection.is_some_and(|selection| {
2225                        if selection.worktree_id == worktree_id {
2226                            selection.entry_id != entry.id
2227                        } else {
2228                            true
2229                        }
2230                    }))
2231                    && entry.is_file()
2232                    && entry.git_summary.index.modified + entry.git_summary.worktree.modified > 0
2233            },
2234            cx,
2235        );
2236
2237        if let Some(selection) = selection {
2238            self.selection = Some(selection);
2239            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2240            self.update_visible_entries(Some((selection.worktree_id, selection.entry_id)), cx);
2241            self.autoscroll(cx);
2242            cx.notify();
2243        }
2244    }
2245
2246    fn select_parent(&mut self, _: &SelectParent, window: &mut Window, cx: &mut Context<Self>) {
2247        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2248            if let Some(parent) = entry.path.parent() {
2249                let worktree = worktree.read(cx);
2250                if let Some(parent_entry) = worktree.entry_for_path(parent) {
2251                    self.selection = Some(SelectedEntry {
2252                        worktree_id: worktree.id(),
2253                        entry_id: parent_entry.id,
2254                    });
2255                    self.autoscroll(cx);
2256                    cx.notify();
2257                }
2258            }
2259        } else {
2260            self.select_first(&SelectFirst {}, window, cx);
2261        }
2262    }
2263
2264    fn select_first(&mut self, _: &SelectFirst, window: &mut Window, cx: &mut Context<Self>) {
2265        if let Some(VisibleEntriesForWorktree {
2266            worktree_id,
2267            entries,
2268            ..
2269        }) = self.visible_entries.first()
2270            && let Some(entry) = entries.first()
2271        {
2272            let selection = SelectedEntry {
2273                worktree_id: *worktree_id,
2274                entry_id: entry.id,
2275            };
2276            self.selection = Some(selection);
2277            if window.modifiers().shift {
2278                self.marked_entries.push(selection);
2279            }
2280            self.autoscroll(cx);
2281            cx.notify();
2282        }
2283    }
2284
2285    fn select_last(&mut self, _: &SelectLast, _: &mut Window, cx: &mut Context<Self>) {
2286        if let Some(VisibleEntriesForWorktree {
2287            worktree_id,
2288            entries,
2289            ..
2290        }) = self.visible_entries.last()
2291        {
2292            let worktree = self.project.read(cx).worktree_for_id(*worktree_id, cx);
2293            if let (Some(worktree), Some(entry)) = (worktree, entries.last()) {
2294                let worktree = worktree.read(cx);
2295                if let Some(entry) = worktree.entry_for_id(entry.id) {
2296                    let selection = SelectedEntry {
2297                        worktree_id: *worktree_id,
2298                        entry_id: entry.id,
2299                    };
2300                    self.selection = Some(selection);
2301                    self.autoscroll(cx);
2302                    cx.notify();
2303                }
2304            }
2305        }
2306    }
2307
2308    fn autoscroll(&mut self, cx: &mut Context<Self>) {
2309        if let Some((_, _, index)) = self.selection.and_then(|s| self.index_for_selection(s)) {
2310            self.scroll_handle.scroll_to_item_with_offset(
2311                index,
2312                ScrollStrategy::Center,
2313                self.sticky_items_count,
2314            );
2315            cx.notify();
2316        }
2317    }
2318
2319    fn cut(&mut self, _: &Cut, _: &mut Window, cx: &mut Context<Self>) {
2320        let entries = self.disjoint_entries(cx);
2321        if !entries.is_empty() {
2322            self.clipboard = Some(ClipboardEntry::Cut(entries));
2323            cx.notify();
2324        }
2325    }
2326
2327    fn copy(&mut self, _: &Copy, _: &mut Window, cx: &mut Context<Self>) {
2328        let entries = self.disjoint_entries(cx);
2329        if !entries.is_empty() {
2330            self.clipboard = Some(ClipboardEntry::Copied(entries));
2331            cx.notify();
2332        }
2333    }
2334
2335    fn create_paste_path(
2336        &self,
2337        source: &SelectedEntry,
2338        (worktree, target_entry): (Entity<Worktree>, &Entry),
2339        cx: &App,
2340    ) -> Option<(PathBuf, Option<Range<usize>>)> {
2341        let mut new_path = target_entry.path.to_path_buf();
2342        // If we're pasting into a file, or a directory into itself, go up one level.
2343        if target_entry.is_file() || (target_entry.is_dir() && target_entry.id == source.entry_id) {
2344            new_path.pop();
2345        }
2346        let clipboard_entry_file_name = self
2347            .project
2348            .read(cx)
2349            .path_for_entry(source.entry_id, cx)?
2350            .path
2351            .file_name()?
2352            .to_os_string();
2353        new_path.push(&clipboard_entry_file_name);
2354        let extension = new_path.extension().map(|e| e.to_os_string());
2355        let file_name_without_extension = Path::new(&clipboard_entry_file_name).file_stem()?;
2356        let file_name_len = file_name_without_extension.to_string_lossy().len();
2357        let mut disambiguation_range = None;
2358        let mut ix = 0;
2359        {
2360            let worktree = worktree.read(cx);
2361            while worktree.entry_for_path(&new_path).is_some() {
2362                new_path.pop();
2363
2364                let mut new_file_name = file_name_without_extension.to_os_string();
2365
2366                let disambiguation = " copy";
2367                let mut disambiguation_len = disambiguation.len();
2368
2369                new_file_name.push(disambiguation);
2370
2371                if ix > 0 {
2372                    let extra_disambiguation = format!(" {}", ix);
2373                    disambiguation_len += extra_disambiguation.len();
2374
2375                    new_file_name.push(extra_disambiguation);
2376                }
2377                if let Some(extension) = extension.as_ref() {
2378                    new_file_name.push(".");
2379                    new_file_name.push(extension);
2380                }
2381
2382                new_path.push(new_file_name);
2383                disambiguation_range = Some(file_name_len..(file_name_len + disambiguation_len));
2384                ix += 1;
2385            }
2386        }
2387        Some((new_path, disambiguation_range))
2388    }
2389
2390    fn paste(&mut self, _: &Paste, window: &mut Window, cx: &mut Context<Self>) {
2391        maybe!({
2392            let (worktree, entry) = self.selected_entry_handle(cx)?;
2393            let entry = entry.clone();
2394            let worktree_id = worktree.read(cx).id();
2395            let clipboard_entries = self
2396                .clipboard
2397                .as_ref()
2398                .filter(|clipboard| !clipboard.items().is_empty())?;
2399            enum PasteTask {
2400                Rename(Task<Result<CreatedEntry>>),
2401                Copy(Task<Result<Option<Entry>>>),
2402            }
2403            let mut paste_entry_tasks: IndexMap<(ProjectEntryId, bool), PasteTask> =
2404                IndexMap::default();
2405            let mut disambiguation_range = None;
2406            let clip_is_cut = clipboard_entries.is_cut();
2407            for clipboard_entry in clipboard_entries.items() {
2408                let (new_path, new_disambiguation_range) =
2409                    self.create_paste_path(clipboard_entry, self.selected_sub_entry(cx)?, cx)?;
2410                let clip_entry_id = clipboard_entry.entry_id;
2411                let is_same_worktree = clipboard_entry.worktree_id == worktree_id;
2412                let relative_worktree_source_path = if !is_same_worktree {
2413                    let target_base_path = worktree.read(cx).abs_path();
2414                    let clipboard_project_path =
2415                        self.project.read(cx).path_for_entry(clip_entry_id, cx)?;
2416                    let clipboard_abs_path = self
2417                        .project
2418                        .read(cx)
2419                        .absolute_path(&clipboard_project_path, cx)?;
2420                    Some(relativize_path(
2421                        &target_base_path,
2422                        clipboard_abs_path.as_path(),
2423                    ))
2424                } else {
2425                    None
2426                };
2427                let task = if clip_is_cut && is_same_worktree {
2428                    let task = self.project.update(cx, |project, cx| {
2429                        project.rename_entry(clip_entry_id, new_path, cx)
2430                    });
2431                    PasteTask::Rename(task)
2432                } else {
2433                    let entry_id = if is_same_worktree {
2434                        clip_entry_id
2435                    } else {
2436                        entry.id
2437                    };
2438                    let task = self.project.update(cx, |project, cx| {
2439                        project.copy_entry(entry_id, relative_worktree_source_path, new_path, cx)
2440                    });
2441                    PasteTask::Copy(task)
2442                };
2443                let needs_delete = !is_same_worktree && clip_is_cut;
2444                paste_entry_tasks.insert((clip_entry_id, needs_delete), task);
2445                disambiguation_range = new_disambiguation_range.or(disambiguation_range);
2446            }
2447
2448            let item_count = paste_entry_tasks.len();
2449
2450            cx.spawn_in(window, async move |project_panel, cx| {
2451                let mut last_succeed = None;
2452                let mut need_delete_ids = Vec::new();
2453                for ((entry_id, need_delete), task) in paste_entry_tasks.into_iter() {
2454                    match task {
2455                        PasteTask::Rename(task) => {
2456                            if let Some(CreatedEntry::Included(entry)) = task.await.log_err() {
2457                                last_succeed = Some(entry);
2458                            }
2459                        }
2460                        PasteTask::Copy(task) => {
2461                            if let Some(Some(entry)) = task.await.log_err() {
2462                                last_succeed = Some(entry);
2463                                if need_delete {
2464                                    need_delete_ids.push(entry_id);
2465                                }
2466                            }
2467                        }
2468                    }
2469                }
2470                // remove entry for cut in difference worktree
2471                for entry_id in need_delete_ids {
2472                    project_panel
2473                        .update(cx, |project_panel, cx| {
2474                            project_panel
2475                                .project
2476                                .update(cx, |project, cx| project.delete_entry(entry_id, true, cx))
2477                                .context("no such entry")
2478                        })??
2479                        .await?;
2480                }
2481                // update selection
2482                if let Some(entry) = last_succeed {
2483                    project_panel
2484                        .update_in(cx, |project_panel, window, cx| {
2485                            project_panel.selection = Some(SelectedEntry {
2486                                worktree_id,
2487                                entry_id: entry.id,
2488                            });
2489
2490                            if item_count == 1 {
2491                                // open entry if not dir, and only focus if rename is not pending
2492                                if !entry.is_dir() {
2493                                    project_panel.open_entry(
2494                                        entry.id,
2495                                        disambiguation_range.is_none(),
2496                                        false,
2497                                        cx,
2498                                    );
2499                                }
2500
2501                                // if only one entry was pasted and it was disambiguated, open the rename editor
2502                                if disambiguation_range.is_some() {
2503                                    cx.defer_in(window, |this, window, cx| {
2504                                        this.rename_impl(disambiguation_range, window, cx);
2505                                    });
2506                                }
2507                            }
2508                        })
2509                        .ok();
2510                }
2511
2512                anyhow::Ok(())
2513            })
2514            .detach_and_log_err(cx);
2515
2516            if clip_is_cut {
2517                // Convert the clipboard cut entry to a copy entry after the first paste.
2518                self.clipboard = self.clipboard.take().map(ClipboardEntry::into_copy_entry);
2519            }
2520
2521            self.expand_entry(worktree_id, entry.id, cx);
2522            Some(())
2523        });
2524    }
2525
2526    fn duplicate(&mut self, _: &Duplicate, window: &mut Window, cx: &mut Context<Self>) {
2527        self.copy(&Copy {}, window, cx);
2528        self.paste(&Paste {}, window, cx);
2529    }
2530
2531    fn copy_path(
2532        &mut self,
2533        _: &zed_actions::workspace::CopyPath,
2534        _: &mut Window,
2535        cx: &mut Context<Self>,
2536    ) {
2537        let abs_file_paths = {
2538            let project = self.project.read(cx);
2539            self.effective_entries()
2540                .into_iter()
2541                .filter_map(|entry| {
2542                    let entry_path = project.path_for_entry(entry.entry_id, cx)?.path;
2543                    Some(
2544                        project
2545                            .worktree_for_id(entry.worktree_id, cx)?
2546                            .read(cx)
2547                            .abs_path()
2548                            .join(entry_path)
2549                            .to_string_lossy()
2550                            .to_string(),
2551                    )
2552                })
2553                .collect::<Vec<_>>()
2554        };
2555        if !abs_file_paths.is_empty() {
2556            cx.write_to_clipboard(ClipboardItem::new_string(abs_file_paths.join("\n")));
2557        }
2558    }
2559
2560    fn copy_relative_path(
2561        &mut self,
2562        _: &zed_actions::workspace::CopyRelativePath,
2563        _: &mut Window,
2564        cx: &mut Context<Self>,
2565    ) {
2566        let file_paths = {
2567            let project = self.project.read(cx);
2568            self.effective_entries()
2569                .into_iter()
2570                .filter_map(|entry| {
2571                    Some(
2572                        project
2573                            .path_for_entry(entry.entry_id, cx)?
2574                            .path
2575                            .to_string_lossy()
2576                            .to_string(),
2577                    )
2578                })
2579                .collect::<Vec<_>>()
2580        };
2581        if !file_paths.is_empty() {
2582            cx.write_to_clipboard(ClipboardItem::new_string(file_paths.join("\n")));
2583        }
2584    }
2585
2586    fn reveal_in_finder(
2587        &mut self,
2588        _: &RevealInFileManager,
2589        _: &mut Window,
2590        cx: &mut Context<Self>,
2591    ) {
2592        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2593            cx.reveal_path(&worktree.read(cx).abs_path().join(&entry.path));
2594        }
2595    }
2596
2597    fn remove_from_project(
2598        &mut self,
2599        _: &RemoveFromProject,
2600        _window: &mut Window,
2601        cx: &mut Context<Self>,
2602    ) {
2603        for entry in self.effective_entries().iter() {
2604            let worktree_id = entry.worktree_id;
2605            self.project
2606                .update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
2607        }
2608    }
2609
2610    fn file_abs_paths_to_diff(&self, cx: &Context<Self>) -> Option<(PathBuf, PathBuf)> {
2611        let mut selections_abs_path = self
2612            .marked_entries
2613            .iter()
2614            .filter_map(|entry| {
2615                let project = self.project.read(cx);
2616                let worktree = project.worktree_for_id(entry.worktree_id, cx)?;
2617                let entry = worktree.read(cx).entry_for_id(entry.entry_id)?;
2618                if !entry.is_file() {
2619                    return None;
2620                }
2621                worktree.read(cx).absolutize(&entry.path).ok()
2622            })
2623            .rev();
2624
2625        let last_path = selections_abs_path.next()?;
2626        let previous_to_last = selections_abs_path.next()?;
2627        Some((previous_to_last, last_path))
2628    }
2629
2630    fn compare_marked_files(
2631        &mut self,
2632        _: &CompareMarkedFiles,
2633        window: &mut Window,
2634        cx: &mut Context<Self>,
2635    ) {
2636        let selected_files = self.file_abs_paths_to_diff(cx);
2637        if let Some((file_path1, file_path2)) = selected_files {
2638            self.workspace
2639                .update(cx, |workspace, cx| {
2640                    FileDiffView::open(file_path1, file_path2, workspace, window, cx)
2641                        .detach_and_log_err(cx);
2642                })
2643                .ok();
2644        }
2645    }
2646
2647    fn open_system(&mut self, _: &OpenWithSystem, _: &mut Window, cx: &mut Context<Self>) {
2648        if let Some((worktree, entry)) = self.selected_entry(cx) {
2649            let abs_path = worktree.abs_path().join(&entry.path);
2650            cx.open_with_system(&abs_path);
2651        }
2652    }
2653
2654    fn open_in_terminal(
2655        &mut self,
2656        _: &OpenInTerminal,
2657        window: &mut Window,
2658        cx: &mut Context<Self>,
2659    ) {
2660        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2661            let abs_path = match &entry.canonical_path {
2662                Some(canonical_path) => Some(canonical_path.to_path_buf()),
2663                None => worktree.read(cx).absolutize(&entry.path).ok(),
2664            };
2665
2666            let working_directory = if entry.is_dir() {
2667                abs_path
2668            } else {
2669                abs_path.and_then(|path| Some(path.parent()?.to_path_buf()))
2670            };
2671            if let Some(working_directory) = working_directory {
2672                window.dispatch_action(
2673                    workspace::OpenTerminal { working_directory }.boxed_clone(),
2674                    cx,
2675                )
2676            }
2677        }
2678    }
2679
2680    pub fn new_search_in_directory(
2681        &mut self,
2682        _: &NewSearchInDirectory,
2683        window: &mut Window,
2684        cx: &mut Context<Self>,
2685    ) {
2686        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2687            let dir_path = if entry.is_dir() {
2688                entry.path.clone()
2689            } else {
2690                // entry is a file, use its parent directory
2691                match entry.path.parent() {
2692                    Some(parent) => Arc::from(parent),
2693                    None => {
2694                        // File at root, open search with empty filter
2695                        self.workspace
2696                            .update(cx, |workspace, cx| {
2697                                search::ProjectSearchView::new_search_in_directory(
2698                                    workspace,
2699                                    Path::new(""),
2700                                    window,
2701                                    cx,
2702                                );
2703                            })
2704                            .ok();
2705                        return;
2706                    }
2707                }
2708            };
2709
2710            let include_root = self.project.read(cx).visible_worktrees(cx).count() > 1;
2711            let dir_path = if include_root {
2712                let mut full_path = PathBuf::from(worktree.read(cx).root_name());
2713                full_path.push(&dir_path);
2714                Arc::from(full_path)
2715            } else {
2716                dir_path
2717            };
2718
2719            self.workspace
2720                .update(cx, |workspace, cx| {
2721                    search::ProjectSearchView::new_search_in_directory(
2722                        workspace, &dir_path, window, cx,
2723                    );
2724                })
2725                .ok();
2726        }
2727    }
2728
2729    fn move_entry(
2730        &mut self,
2731        entry_to_move: ProjectEntryId,
2732        destination: ProjectEntryId,
2733        destination_is_file: bool,
2734        cx: &mut Context<Self>,
2735    ) {
2736        if self
2737            .project
2738            .read(cx)
2739            .entry_is_worktree_root(entry_to_move, cx)
2740        {
2741            self.move_worktree_root(entry_to_move, destination, cx)
2742        } else {
2743            self.move_worktree_entry(entry_to_move, destination, destination_is_file, cx)
2744        }
2745    }
2746
2747    fn move_worktree_root(
2748        &mut self,
2749        entry_to_move: ProjectEntryId,
2750        destination: ProjectEntryId,
2751        cx: &mut Context<Self>,
2752    ) {
2753        self.project.update(cx, |project, cx| {
2754            let Some(worktree_to_move) = project.worktree_for_entry(entry_to_move, cx) else {
2755                return;
2756            };
2757            let Some(destination_worktree) = project.worktree_for_entry(destination, cx) else {
2758                return;
2759            };
2760
2761            let worktree_id = worktree_to_move.read(cx).id();
2762            let destination_id = destination_worktree.read(cx).id();
2763
2764            project
2765                .move_worktree(worktree_id, destination_id, cx)
2766                .log_err();
2767        });
2768    }
2769
2770    fn move_worktree_entry(
2771        &mut self,
2772        entry_to_move: ProjectEntryId,
2773        destination: ProjectEntryId,
2774        destination_is_file: bool,
2775        cx: &mut Context<Self>,
2776    ) {
2777        if entry_to_move == destination {
2778            return;
2779        }
2780
2781        let destination_worktree = self.project.update(cx, |project, cx| {
2782            let entry_path = project.path_for_entry(entry_to_move, cx)?;
2783            let destination_entry_path = project.path_for_entry(destination, cx)?.path.clone();
2784
2785            let mut destination_path = destination_entry_path.as_ref();
2786            if destination_is_file {
2787                destination_path = destination_path.parent()?;
2788            }
2789
2790            let mut new_path = destination_path.to_path_buf();
2791            new_path.push(entry_path.path.file_name()?);
2792            if new_path != entry_path.path.as_ref() {
2793                let task = project.rename_entry(entry_to_move, new_path, cx);
2794                cx.foreground_executor().spawn(task).detach_and_log_err(cx);
2795            }
2796
2797            project.worktree_id_for_entry(destination, cx)
2798        });
2799
2800        if let Some(destination_worktree) = destination_worktree {
2801            self.expand_entry(destination_worktree, destination, cx);
2802        }
2803    }
2804
2805    fn index_for_selection(&self, selection: SelectedEntry) -> Option<(usize, usize, usize)> {
2806        self.index_for_entry(selection.entry_id, selection.worktree_id)
2807    }
2808
2809    fn disjoint_entries(&self, cx: &App) -> BTreeSet<SelectedEntry> {
2810        let marked_entries = self.effective_entries();
2811        let mut sanitized_entries = BTreeSet::new();
2812        if marked_entries.is_empty() {
2813            return sanitized_entries;
2814        }
2815
2816        let project = self.project.read(cx);
2817        let marked_entries_by_worktree: HashMap<WorktreeId, Vec<SelectedEntry>> = marked_entries
2818            .into_iter()
2819            .filter(|entry| !project.entry_is_worktree_root(entry.entry_id, cx))
2820            .fold(HashMap::default(), |mut map, entry| {
2821                map.entry(entry.worktree_id).or_default().push(entry);
2822                map
2823            });
2824
2825        for (worktree_id, marked_entries) in marked_entries_by_worktree {
2826            if let Some(worktree) = project.worktree_for_id(worktree_id, cx) {
2827                let worktree = worktree.read(cx);
2828                let marked_dir_paths = marked_entries
2829                    .iter()
2830                    .filter_map(|entry| {
2831                        worktree.entry_for_id(entry.entry_id).and_then(|entry| {
2832                            if entry.is_dir() {
2833                                Some(entry.path.as_ref())
2834                            } else {
2835                                None
2836                            }
2837                        })
2838                    })
2839                    .collect::<BTreeSet<_>>();
2840
2841                sanitized_entries.extend(marked_entries.into_iter().filter(|entry| {
2842                    let Some(entry_info) = worktree.entry_for_id(entry.entry_id) else {
2843                        return false;
2844                    };
2845                    let entry_path = entry_info.path.as_ref();
2846                    let inside_marked_dir = marked_dir_paths.iter().any(|&marked_dir_path| {
2847                        entry_path != marked_dir_path && entry_path.starts_with(marked_dir_path)
2848                    });
2849                    !inside_marked_dir
2850                }));
2851            }
2852        }
2853
2854        sanitized_entries
2855    }
2856
2857    fn effective_entries(&self) -> BTreeSet<SelectedEntry> {
2858        if let Some(selection) = self.selection {
2859            let selection = SelectedEntry {
2860                entry_id: self.resolve_entry(selection.entry_id),
2861                worktree_id: selection.worktree_id,
2862            };
2863
2864            // Default to using just the selected item when nothing is marked.
2865            if self.marked_entries.is_empty() {
2866                return BTreeSet::from([selection]);
2867            }
2868
2869            // Allow operating on the selected item even when something else is marked,
2870            // making it easier to perform one-off actions without clearing a mark.
2871            if self.marked_entries.len() == 1 && !self.marked_entries.contains(&selection) {
2872                return BTreeSet::from([selection]);
2873            }
2874        }
2875
2876        // Return only marked entries since we've already handled special cases where
2877        // only selection should take precedence. At this point, marked entries may or
2878        // may not include the current selection, which is intentional.
2879        self.marked_entries
2880            .iter()
2881            .map(|entry| SelectedEntry {
2882                entry_id: self.resolve_entry(entry.entry_id),
2883                worktree_id: entry.worktree_id,
2884            })
2885            .collect::<BTreeSet<_>>()
2886    }
2887
2888    /// Finds the currently selected subentry for a given leaf entry id. If a given entry
2889    /// has no ancestors, the project entry ID that's passed in is returned as-is.
2890    fn resolve_entry(&self, id: ProjectEntryId) -> ProjectEntryId {
2891        self.ancestors
2892            .get(&id)
2893            .and_then(|ancestors| {
2894                if ancestors.current_ancestor_depth == 0 {
2895                    return None;
2896                }
2897                ancestors.ancestors.get(ancestors.current_ancestor_depth)
2898            })
2899            .copied()
2900            .unwrap_or(id)
2901    }
2902
2903    pub fn selected_entry<'a>(&self, cx: &'a App) -> Option<(&'a Worktree, &'a project::Entry)> {
2904        let (worktree, entry) = self.selected_entry_handle(cx)?;
2905        Some((worktree.read(cx), entry))
2906    }
2907
2908    /// Compared to selected_entry, this function resolves to the currently
2909    /// selected subentry if dir auto-folding is enabled.
2910    fn selected_sub_entry<'a>(
2911        &self,
2912        cx: &'a App,
2913    ) -> Option<(Entity<Worktree>, &'a project::Entry)> {
2914        let (worktree, mut entry) = self.selected_entry_handle(cx)?;
2915
2916        let resolved_id = self.resolve_entry(entry.id);
2917        if resolved_id != entry.id {
2918            let worktree = worktree.read(cx);
2919            entry = worktree.entry_for_id(resolved_id)?;
2920        }
2921        Some((worktree, entry))
2922    }
2923    fn selected_entry_handle<'a>(
2924        &self,
2925        cx: &'a App,
2926    ) -> Option<(Entity<Worktree>, &'a project::Entry)> {
2927        let selection = self.selection?;
2928        let project = self.project.read(cx);
2929        let worktree = project.worktree_for_id(selection.worktree_id, cx)?;
2930        let entry = worktree.read(cx).entry_for_id(selection.entry_id)?;
2931        Some((worktree, entry))
2932    }
2933
2934    fn expand_to_selection(&mut self, cx: &mut Context<Self>) -> Option<()> {
2935        let (worktree, entry) = self.selected_entry(cx)?;
2936        let expanded_dir_ids = self.expanded_dir_ids.entry(worktree.id()).or_default();
2937
2938        for path in entry.path.ancestors() {
2939            let Some(entry) = worktree.entry_for_path(path) else {
2940                continue;
2941            };
2942            if entry.is_dir()
2943                && let Err(idx) = expanded_dir_ids.binary_search(&entry.id)
2944            {
2945                expanded_dir_ids.insert(idx, entry.id);
2946            }
2947        }
2948
2949        Some(())
2950    }
2951
2952    fn create_new_git_entry(
2953        parent_entry: &Entry,
2954        git_summary: GitSummary,
2955        new_entry_kind: EntryKind,
2956    ) -> GitEntry {
2957        GitEntry {
2958            entry: Entry {
2959                id: NEW_ENTRY_ID,
2960                kind: new_entry_kind,
2961                path: parent_entry.path.join("\0").into(),
2962                inode: 0,
2963                mtime: parent_entry.mtime,
2964                size: parent_entry.size,
2965                is_ignored: parent_entry.is_ignored,
2966                is_external: false,
2967                is_private: false,
2968                is_always_included: parent_entry.is_always_included,
2969                canonical_path: parent_entry.canonical_path.clone(),
2970                char_bag: parent_entry.char_bag,
2971                is_fifo: parent_entry.is_fifo,
2972            },
2973            git_summary,
2974        }
2975    }
2976
2977    fn update_visible_entries(
2978        &mut self,
2979        new_selected_entry: Option<(WorktreeId, ProjectEntryId)>,
2980        cx: &mut Context<Self>,
2981    ) {
2982        let now = Instant::now();
2983        let settings = ProjectPanelSettings::get_global(cx);
2984        let auto_collapse_dirs = settings.auto_fold_dirs;
2985        let hide_gitignore = settings.hide_gitignore;
2986        let project = self.project.read(cx);
2987        let repo_snapshots = project.git_store().read(cx).repo_snapshots(cx);
2988        self.last_worktree_root_id = project
2989            .visible_worktrees(cx)
2990            .next_back()
2991            .and_then(|worktree| worktree.read(cx).root_entry())
2992            .map(|entry| entry.id);
2993
2994        let old_ancestors = std::mem::take(&mut self.ancestors);
2995        self.visible_entries.clear();
2996        let mut max_width_item = None;
2997
2998        let visible_worktrees: Vec<_> = project.visible_worktrees(cx).collect();
2999        let hide_root = settings.hide_root && visible_worktrees.len() == 1;
3000        for worktree in visible_worktrees {
3001            let worktree_snapshot = worktree.read(cx).snapshot();
3002            let worktree_id = worktree_snapshot.id();
3003
3004            let expanded_dir_ids = match self.expanded_dir_ids.entry(worktree_id) {
3005                hash_map::Entry::Occupied(e) => e.into_mut(),
3006                hash_map::Entry::Vacant(e) => {
3007                    // The first time a worktree's root entry becomes available,
3008                    // mark that root entry as expanded.
3009                    if let Some(entry) = worktree_snapshot.root_entry() {
3010                        e.insert(vec![entry.id]).as_slice()
3011                    } else {
3012                        &[]
3013                    }
3014                }
3015            };
3016
3017            let mut new_entry_parent_id = None;
3018            let mut new_entry_kind = EntryKind::Dir;
3019            if let Some(edit_state) = &self.edit_state
3020                && edit_state.worktree_id == worktree_id
3021                && edit_state.is_new_entry()
3022            {
3023                new_entry_parent_id = Some(edit_state.entry_id);
3024                new_entry_kind = if edit_state.is_dir {
3025                    EntryKind::Dir
3026                } else {
3027                    EntryKind::File
3028                };
3029            }
3030
3031            let mut visible_worktree_entries = Vec::new();
3032            let mut entry_iter =
3033                GitTraversal::new(&repo_snapshots, worktree_snapshot.entries(true, 0));
3034            let mut auto_folded_ancestors = vec![];
3035            while let Some(entry) = entry_iter.entry() {
3036                if hide_root && Some(entry.entry) == worktree.read(cx).root_entry() {
3037                    if new_entry_parent_id == Some(entry.id) {
3038                        visible_worktree_entries.push(Self::create_new_git_entry(
3039                            entry.entry,
3040                            entry.git_summary,
3041                            new_entry_kind,
3042                        ));
3043                        new_entry_parent_id = None;
3044                    }
3045                    entry_iter.advance();
3046                    continue;
3047                }
3048                if auto_collapse_dirs && entry.kind.is_dir() {
3049                    auto_folded_ancestors.push(entry.id);
3050                    if !self.unfolded_dir_ids.contains(&entry.id)
3051                        && let Some(root_path) = worktree_snapshot.root_entry()
3052                    {
3053                        let mut child_entries = worktree_snapshot.child_entries(&entry.path);
3054                        if let Some(child) = child_entries.next()
3055                            && entry.path != root_path.path
3056                            && child_entries.next().is_none()
3057                            && child.kind.is_dir()
3058                        {
3059                            entry_iter.advance();
3060
3061                            continue;
3062                        }
3063                    }
3064                    let depth = old_ancestors
3065                        .get(&entry.id)
3066                        .map(|ancestor| ancestor.current_ancestor_depth)
3067                        .unwrap_or_default()
3068                        .min(auto_folded_ancestors.len());
3069                    if let Some(edit_state) = &mut self.edit_state
3070                        && edit_state.entry_id == entry.id
3071                    {
3072                        edit_state.depth = depth;
3073                    }
3074                    let mut ancestors = std::mem::take(&mut auto_folded_ancestors);
3075                    if ancestors.len() > 1 {
3076                        ancestors.reverse();
3077                        self.ancestors.insert(
3078                            entry.id,
3079                            FoldedAncestors {
3080                                current_ancestor_depth: depth,
3081                                ancestors,
3082                            },
3083                        );
3084                    }
3085                }
3086                auto_folded_ancestors.clear();
3087                if !hide_gitignore || !entry.is_ignored {
3088                    visible_worktree_entries.push(entry.to_owned());
3089                }
3090                let precedes_new_entry = if let Some(new_entry_id) = new_entry_parent_id {
3091                    entry.id == new_entry_id || {
3092                        self.ancestors
3093                            .get(&entry.id)
3094                            .is_some_and(|entries| entries.ancestors.contains(&new_entry_id))
3095                    }
3096                } else {
3097                    false
3098                };
3099                if precedes_new_entry && (!hide_gitignore || !entry.is_ignored) {
3100                    visible_worktree_entries.push(Self::create_new_git_entry(
3101                        entry.entry,
3102                        entry.git_summary,
3103                        new_entry_kind,
3104                    ));
3105                }
3106                let worktree_abs_path = worktree.read(cx).abs_path();
3107                let (depth, path) = if Some(entry.entry) == worktree.read(cx).root_entry() {
3108                    let Some(path_name) = worktree_abs_path.file_name() else {
3109                        continue;
3110                    };
3111                    let path = ArcCow::Borrowed(Path::new(path_name));
3112                    let depth = 0;
3113                    (depth, path)
3114                } else if entry.is_file() {
3115                    let Some(path_name) = entry
3116                        .path
3117                        .file_name()
3118                        .with_context(|| format!("Non-root entry has no file name: {entry:?}"))
3119                        .log_err()
3120                    else {
3121                        continue;
3122                    };
3123                    let path = ArcCow::Borrowed(Path::new(path_name));
3124                    let depth = entry.path.ancestors().count() - 1;
3125                    (depth, path)
3126                } else {
3127                    let path = self
3128                        .ancestors
3129                        .get(&entry.id)
3130                        .and_then(|ancestors| {
3131                            let outermost_ancestor = ancestors.ancestors.last()?;
3132                            let root_folded_entry = worktree
3133                                .read(cx)
3134                                .entry_for_id(*outermost_ancestor)?
3135                                .path
3136                                .as_ref();
3137                            entry
3138                                .path
3139                                .strip_prefix(root_folded_entry)
3140                                .ok()
3141                                .and_then(|suffix| {
3142                                    let full_path = Path::new(root_folded_entry.file_name()?);
3143                                    Some(ArcCow::Owned(Arc::<Path>::from(full_path.join(suffix))))
3144                                })
3145                        })
3146                        .or_else(|| entry.path.file_name().map(Path::new).map(ArcCow::Borrowed))
3147                        .unwrap_or_else(|| ArcCow::Owned(entry.path.clone()));
3148                    let depth = path.components().count();
3149                    (depth, path)
3150                };
3151                let width_estimate = item_width_estimate(
3152                    depth,
3153                    path.to_string_lossy().chars().count(),
3154                    entry.canonical_path.is_some(),
3155                );
3156
3157                match max_width_item.as_mut() {
3158                    Some((id, worktree_id, width)) => {
3159                        if *width < width_estimate {
3160                            *id = entry.id;
3161                            *worktree_id = worktree.read(cx).id();
3162                            *width = width_estimate;
3163                        }
3164                    }
3165                    None => {
3166                        max_width_item = Some((entry.id, worktree.read(cx).id(), width_estimate))
3167                    }
3168                }
3169
3170                if expanded_dir_ids.binary_search(&entry.id).is_err()
3171                    && entry_iter.advance_to_sibling()
3172                {
3173                    continue;
3174                }
3175                entry_iter.advance();
3176            }
3177
3178            project::sort_worktree_entries(&mut visible_worktree_entries);
3179
3180            self.visible_entries.push(VisibleEntriesForWorktree {
3181                worktree_id,
3182                entries: visible_worktree_entries,
3183                index: OnceCell::new(),
3184            })
3185        }
3186
3187        if let Some((project_entry_id, worktree_id, _)) = max_width_item {
3188            let mut visited_worktrees_length = 0;
3189            let index = self.visible_entries.iter().find_map(|visible_entries| {
3190                if worktree_id == visible_entries.worktree_id {
3191                    visible_entries
3192                        .entries
3193                        .iter()
3194                        .position(|entry| entry.id == project_entry_id)
3195                } else {
3196                    visited_worktrees_length += visible_entries.entries.len();
3197                    None
3198                }
3199            });
3200            if let Some(index) = index {
3201                self.max_width_item_index = Some(visited_worktrees_length + index);
3202            }
3203        }
3204        if let Some((worktree_id, entry_id)) = new_selected_entry {
3205            self.selection = Some(SelectedEntry {
3206                worktree_id,
3207                entry_id,
3208            });
3209        }
3210        let elapsed = now.elapsed();
3211        if self.last_reported_update.elapsed() > Duration::from_secs(3600) {
3212            telemetry::event!(
3213                "Project Panel Updated",
3214                elapsed_ms = elapsed.as_millis() as u64,
3215                worktree_entries = self
3216                    .visible_entries
3217                    .iter()
3218                    .map(|worktree| worktree.entries.len())
3219                    .sum::<usize>(),
3220            )
3221        }
3222    }
3223
3224    fn expand_entry(
3225        &mut self,
3226        worktree_id: WorktreeId,
3227        entry_id: ProjectEntryId,
3228        cx: &mut Context<Self>,
3229    ) {
3230        self.project.update(cx, |project, cx| {
3231            if let Some((worktree, expanded_dir_ids)) = project
3232                .worktree_for_id(worktree_id, cx)
3233                .zip(self.expanded_dir_ids.get_mut(&worktree_id))
3234            {
3235                project.expand_entry(worktree_id, entry_id, cx);
3236                let worktree = worktree.read(cx);
3237
3238                if let Some(mut entry) = worktree.entry_for_id(entry_id) {
3239                    loop {
3240                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
3241                            expanded_dir_ids.insert(ix, entry.id);
3242                        }
3243
3244                        if let Some(parent_entry) =
3245                            entry.path.parent().and_then(|p| worktree.entry_for_path(p))
3246                        {
3247                            entry = parent_entry;
3248                        } else {
3249                            break;
3250                        }
3251                    }
3252                }
3253            }
3254        });
3255    }
3256
3257    fn drop_external_files(
3258        &mut self,
3259        paths: &[PathBuf],
3260        entry_id: ProjectEntryId,
3261        window: &mut Window,
3262        cx: &mut Context<Self>,
3263    ) {
3264        let mut paths: Vec<Arc<Path>> = paths.iter().map(|path| Arc::from(path.clone())).collect();
3265
3266        let open_file_after_drop = paths.len() == 1 && paths[0].is_file();
3267
3268        let Some((target_directory, worktree, fs)) = maybe!({
3269            let project = self.project.read(cx);
3270            let fs = project.fs().clone();
3271            let worktree = project.worktree_for_entry(entry_id, cx)?;
3272            let entry = worktree.read(cx).entry_for_id(entry_id)?;
3273            let path = entry.path.clone();
3274            let target_directory = if entry.is_dir() {
3275                path.to_path_buf()
3276            } else {
3277                path.parent()?.to_path_buf()
3278            };
3279            Some((target_directory, worktree, fs))
3280        }) else {
3281            return;
3282        };
3283
3284        let mut paths_to_replace = Vec::new();
3285        for path in &paths {
3286            if let Some(name) = path.file_name() {
3287                let mut target_path = target_directory.clone();
3288                target_path.push(name);
3289                if target_path.exists() {
3290                    paths_to_replace.push((name.to_string_lossy().to_string(), path.clone()));
3291                }
3292            }
3293        }
3294
3295        cx.spawn_in(window, async move |this, cx| {
3296            async move {
3297                for (filename, original_path) in &paths_to_replace {
3298                    let answer = cx.update(|window, cx| {
3299                        window
3300                            .prompt(
3301                                PromptLevel::Info,
3302                                format!("A file or folder with name {filename} already exists in the destination folder. Do you want to replace it?").as_str(),
3303                                None,
3304                                &["Replace", "Cancel"],
3305                                cx,
3306                            )
3307                    })?.await?;
3308
3309                    if answer == 1
3310                        && let Some(item_idx) = paths.iter().position(|p| p == original_path) {
3311                            paths.remove(item_idx);
3312                        }
3313                }
3314
3315                if paths.is_empty() {
3316                    return Ok(());
3317                }
3318
3319                let task = worktree.update( cx, |worktree, cx| {
3320                    worktree.copy_external_entries(target_directory.into(), paths, fs, cx)
3321                })?;
3322
3323                let opened_entries = task.await.with_context(|| "failed to copy external paths")?;
3324                this.update(cx, |this, cx| {
3325                    if open_file_after_drop && !opened_entries.is_empty() {
3326                        this.open_entry(opened_entries[0], true, false, cx);
3327                    }
3328                })
3329            }
3330            .log_err().await
3331        })
3332        .detach();
3333    }
3334
3335    fn refresh_drag_cursor_style(
3336        &self,
3337        modifiers: &Modifiers,
3338        window: &mut Window,
3339        cx: &mut Context<Self>,
3340    ) {
3341        if let Some(existing_cursor) = cx.active_drag_cursor_style() {
3342            let new_cursor = if Self::is_copy_modifier_set(modifiers) {
3343                CursorStyle::DragCopy
3344            } else {
3345                CursorStyle::PointingHand
3346            };
3347            if existing_cursor != new_cursor {
3348                cx.set_active_drag_cursor_style(new_cursor, window);
3349            }
3350        }
3351    }
3352
3353    fn is_copy_modifier_set(modifiers: &Modifiers) -> bool {
3354        cfg!(target_os = "macos") && modifiers.alt
3355            || cfg!(not(target_os = "macos")) && modifiers.control
3356    }
3357
3358    fn drag_onto(
3359        &mut self,
3360        selections: &DraggedSelection,
3361        target_entry_id: ProjectEntryId,
3362        is_file: bool,
3363        window: &mut Window,
3364        cx: &mut Context<Self>,
3365    ) {
3366        if Self::is_copy_modifier_set(&window.modifiers()) {
3367            let _ = maybe!({
3368                let project = self.project.read(cx);
3369                let target_worktree = project.worktree_for_entry(target_entry_id, cx)?;
3370                let worktree_id = target_worktree.read(cx).id();
3371                let target_entry = target_worktree
3372                    .read(cx)
3373                    .entry_for_id(target_entry_id)?
3374                    .clone();
3375
3376                let mut copy_tasks = Vec::new();
3377                let mut disambiguation_range = None;
3378                for selection in selections.items() {
3379                    let (new_path, new_disambiguation_range) = self.create_paste_path(
3380                        selection,
3381                        (target_worktree.clone(), &target_entry),
3382                        cx,
3383                    )?;
3384
3385                    let task = self.project.update(cx, |project, cx| {
3386                        project.copy_entry(selection.entry_id, None, new_path, cx)
3387                    });
3388                    copy_tasks.push(task);
3389                    disambiguation_range = new_disambiguation_range.or(disambiguation_range);
3390                }
3391
3392                let item_count = copy_tasks.len();
3393
3394                cx.spawn_in(window, async move |project_panel, cx| {
3395                    let mut last_succeed = None;
3396                    for task in copy_tasks.into_iter() {
3397                        if let Some(Some(entry)) = task.await.log_err() {
3398                            last_succeed = Some(entry.id);
3399                        }
3400                    }
3401                    // update selection
3402                    if let Some(entry_id) = last_succeed {
3403                        project_panel
3404                            .update_in(cx, |project_panel, window, cx| {
3405                                project_panel.selection = Some(SelectedEntry {
3406                                    worktree_id,
3407                                    entry_id,
3408                                });
3409
3410                                // if only one entry was dragged and it was disambiguated, open the rename editor
3411                                if item_count == 1 && disambiguation_range.is_some() {
3412                                    project_panel.rename_impl(disambiguation_range, window, cx);
3413                                }
3414                            })
3415                            .ok();
3416                    }
3417                })
3418                .detach();
3419                Some(())
3420            });
3421        } else {
3422            for selection in selections.items() {
3423                self.move_entry(selection.entry_id, target_entry_id, is_file, cx);
3424            }
3425        }
3426    }
3427
3428    fn index_for_entry(
3429        &self,
3430        entry_id: ProjectEntryId,
3431        worktree_id: WorktreeId,
3432    ) -> Option<(usize, usize, usize)> {
3433        let mut total_ix = 0;
3434        for (worktree_ix, visible) in self.visible_entries.iter().enumerate() {
3435            if worktree_id != visible.worktree_id {
3436                total_ix += visible.entries.len();
3437                continue;
3438            }
3439
3440            return visible
3441                .entries
3442                .iter()
3443                .enumerate()
3444                .find(|(_, entry)| entry.id == entry_id)
3445                .map(|(ix, _)| (worktree_ix, ix, total_ix + ix));
3446        }
3447        None
3448    }
3449
3450    fn entry_at_index(&self, index: usize) -> Option<(WorktreeId, GitEntryRef<'_>)> {
3451        let mut offset = 0;
3452        for worktree in &self.visible_entries {
3453            let current_len = worktree.entries.len();
3454            if index < offset + current_len {
3455                return worktree
3456                    .entries
3457                    .get(index - offset)
3458                    .map(|entry| (worktree.worktree_id, entry.to_ref()));
3459            }
3460            offset += current_len;
3461        }
3462        None
3463    }
3464
3465    fn iter_visible_entries(
3466        &self,
3467        range: Range<usize>,
3468        window: &mut Window,
3469        cx: &mut Context<ProjectPanel>,
3470        mut callback: impl FnMut(
3471            &Entry,
3472            usize,
3473            &HashSet<Arc<Path>>,
3474            &mut Window,
3475            &mut Context<ProjectPanel>,
3476        ),
3477    ) {
3478        let mut ix = 0;
3479        for visible in &self.visible_entries {
3480            if ix >= range.end {
3481                return;
3482            }
3483
3484            if ix + visible.entries.len() <= range.start {
3485                ix += visible.entries.len();
3486                continue;
3487            }
3488
3489            let end_ix = range.end.min(ix + visible.entries.len());
3490            let entry_range = range.start.saturating_sub(ix)..end_ix - ix;
3491            let entries = visible
3492                .index
3493                .get_or_init(|| visible.entries.iter().map(|e| (e.path.clone())).collect());
3494            let base_index = ix + entry_range.start;
3495            for (i, entry) in visible.entries[entry_range].iter().enumerate() {
3496                let global_index = base_index + i;
3497                callback(entry, global_index, entries, window, cx);
3498            }
3499            ix = end_ix;
3500        }
3501    }
3502
3503    fn for_each_visible_entry(
3504        &self,
3505        range: Range<usize>,
3506        window: &mut Window,
3507        cx: &mut Context<ProjectPanel>,
3508        mut callback: impl FnMut(ProjectEntryId, EntryDetails, &mut Window, &mut Context<ProjectPanel>),
3509    ) {
3510        let mut ix = 0;
3511        for visible in &self.visible_entries {
3512            if ix >= range.end {
3513                return;
3514            }
3515
3516            if ix + visible.entries.len() <= range.start {
3517                ix += visible.entries.len();
3518                continue;
3519            }
3520
3521            let end_ix = range.end.min(ix + visible.entries.len());
3522            let git_status_setting = {
3523                let settings = ProjectPanelSettings::get_global(cx);
3524                settings.git_status
3525            };
3526            if let Some(worktree) = self
3527                .project
3528                .read(cx)
3529                .worktree_for_id(visible.worktree_id, cx)
3530            {
3531                let snapshot = worktree.read(cx).snapshot();
3532                let root_name = OsStr::new(snapshot.root_name());
3533
3534                let entry_range = range.start.saturating_sub(ix)..end_ix - ix;
3535                let entries = visible
3536                    .index
3537                    .get_or_init(|| visible.entries.iter().map(|e| (e.path.clone())).collect());
3538                for entry in visible.entries[entry_range].iter() {
3539                    let status = git_status_setting
3540                        .then_some(entry.git_summary)
3541                        .unwrap_or_default();
3542
3543                    let mut details = self.details_for_entry(
3544                        entry,
3545                        visible.worktree_id,
3546                        root_name,
3547                        entries,
3548                        status,
3549                        None,
3550                        window,
3551                        cx,
3552                    );
3553
3554                    if let Some(edit_state) = &self.edit_state {
3555                        let is_edited_entry = if edit_state.is_new_entry() {
3556                            entry.id == NEW_ENTRY_ID
3557                        } else {
3558                            entry.id == edit_state.entry_id
3559                                || self
3560                                    .ancestors
3561                                    .get(&entry.id)
3562                                    .is_some_and(|auto_folded_dirs| {
3563                                        auto_folded_dirs.ancestors.contains(&edit_state.entry_id)
3564                                    })
3565                        };
3566
3567                        if is_edited_entry {
3568                            if let Some(processing_filename) = &edit_state.processing_filename {
3569                                details.is_processing = true;
3570                                if let Some(ancestors) = edit_state
3571                                    .leaf_entry_id
3572                                    .and_then(|entry| self.ancestors.get(&entry))
3573                                {
3574                                    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;
3575                                    let all_components = ancestors.ancestors.len();
3576
3577                                    let prefix_components = all_components - position;
3578                                    let suffix_components = position.checked_sub(1);
3579                                    let mut previous_components =
3580                                        Path::new(&details.filename).components();
3581                                    let mut new_path = previous_components
3582                                        .by_ref()
3583                                        .take(prefix_components)
3584                                        .collect::<PathBuf>();
3585                                    if let Some(last_component) =
3586                                        Path::new(processing_filename).components().next_back()
3587                                    {
3588                                        new_path.push(last_component);
3589                                        previous_components.next();
3590                                    }
3591
3592                                    if suffix_components.is_some() {
3593                                        new_path.push(previous_components);
3594                                    }
3595                                    if let Some(str) = new_path.to_str() {
3596                                        details.filename.clear();
3597                                        details.filename.push_str(str);
3598                                    }
3599                                } else {
3600                                    details.filename.clear();
3601                                    details.filename.push_str(processing_filename);
3602                                }
3603                            } else {
3604                                if edit_state.is_new_entry() {
3605                                    details.filename.clear();
3606                                }
3607                                details.is_editing = true;
3608                            }
3609                        }
3610                    }
3611
3612                    callback(entry.id, details, window, cx);
3613                }
3614            }
3615            ix = end_ix;
3616        }
3617    }
3618
3619    fn find_entry_in_worktree(
3620        &self,
3621        worktree_id: WorktreeId,
3622        reverse_search: bool,
3623        only_visible_entries: bool,
3624        predicate: impl Fn(GitEntryRef, WorktreeId) -> bool,
3625        cx: &mut Context<Self>,
3626    ) -> Option<GitEntry> {
3627        if only_visible_entries {
3628            let entries = self
3629                .visible_entries
3630                .iter()
3631                .find_map(|visible| {
3632                    if worktree_id == visible.worktree_id {
3633                        Some(&visible.entries)
3634                    } else {
3635                        None
3636                    }
3637                })?
3638                .clone();
3639
3640            return utils::ReversibleIterable::new(entries.iter(), reverse_search)
3641                .find(|ele| predicate(ele.to_ref(), worktree_id))
3642                .cloned();
3643        }
3644
3645        let repo_snapshots = self
3646            .project
3647            .read(cx)
3648            .git_store()
3649            .read(cx)
3650            .repo_snapshots(cx);
3651        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
3652        worktree.read_with(cx, |tree, _| {
3653            utils::ReversibleIterable::new(
3654                GitTraversal::new(&repo_snapshots, tree.entries(true, 0usize)),
3655                reverse_search,
3656            )
3657            .find_single_ended(|ele| predicate(*ele, worktree_id))
3658            .map(|ele| ele.to_owned())
3659        })
3660    }
3661
3662    fn find_entry(
3663        &self,
3664        start: Option<&SelectedEntry>,
3665        reverse_search: bool,
3666        predicate: impl Fn(GitEntryRef, WorktreeId) -> bool,
3667        cx: &mut Context<Self>,
3668    ) -> Option<SelectedEntry> {
3669        let mut worktree_ids: Vec<_> = self
3670            .visible_entries
3671            .iter()
3672            .map(|worktree| worktree.worktree_id)
3673            .collect();
3674        let repo_snapshots = self
3675            .project
3676            .read(cx)
3677            .git_store()
3678            .read(cx)
3679            .repo_snapshots(cx);
3680
3681        let mut last_found: Option<SelectedEntry> = None;
3682
3683        if let Some(start) = start {
3684            let worktree = self
3685                .project
3686                .read(cx)
3687                .worktree_for_id(start.worktree_id, cx)?
3688                .read(cx);
3689
3690            let search = {
3691                let entry = worktree.entry_for_id(start.entry_id)?;
3692                let root_entry = worktree.root_entry()?;
3693                let tree_id = worktree.id();
3694
3695                let mut first_iter = GitTraversal::new(
3696                    &repo_snapshots,
3697                    worktree.traverse_from_path(true, true, true, entry.path.as_ref()),
3698                );
3699
3700                if reverse_search {
3701                    first_iter.next();
3702                }
3703
3704                let first = first_iter
3705                    .enumerate()
3706                    .take_until(|(count, entry)| entry.entry == root_entry && *count != 0usize)
3707                    .map(|(_, entry)| entry)
3708                    .find(|ele| predicate(*ele, tree_id))
3709                    .map(|ele| ele.to_owned());
3710
3711                let second_iter =
3712                    GitTraversal::new(&repo_snapshots, worktree.entries(true, 0usize));
3713
3714                let second = if reverse_search {
3715                    second_iter
3716                        .take_until(|ele| ele.id == start.entry_id)
3717                        .filter(|ele| predicate(*ele, tree_id))
3718                        .last()
3719                        .map(|ele| ele.to_owned())
3720                } else {
3721                    second_iter
3722                        .take_while(|ele| ele.id != start.entry_id)
3723                        .filter(|ele| predicate(*ele, tree_id))
3724                        .last()
3725                        .map(|ele| ele.to_owned())
3726                };
3727
3728                if reverse_search {
3729                    Some((second, first))
3730                } else {
3731                    Some((first, second))
3732                }
3733            };
3734
3735            if let Some((first, second)) = search {
3736                let first = first.map(|entry| SelectedEntry {
3737                    worktree_id: start.worktree_id,
3738                    entry_id: entry.id,
3739                });
3740
3741                let second = second.map(|entry| SelectedEntry {
3742                    worktree_id: start.worktree_id,
3743                    entry_id: entry.id,
3744                });
3745
3746                if first.is_some() {
3747                    return first;
3748                }
3749                last_found = second;
3750
3751                let idx = worktree_ids
3752                    .iter()
3753                    .enumerate()
3754                    .find(|(_, ele)| **ele == start.worktree_id)
3755                    .map(|(idx, _)| idx);
3756
3757                if let Some(idx) = idx {
3758                    worktree_ids.rotate_left(idx + 1usize);
3759                    worktree_ids.pop();
3760                }
3761            }
3762        }
3763
3764        for tree_id in worktree_ids.into_iter() {
3765            if let Some(found) =
3766                self.find_entry_in_worktree(tree_id, reverse_search, false, &predicate, cx)
3767            {
3768                return Some(SelectedEntry {
3769                    worktree_id: tree_id,
3770                    entry_id: found.id,
3771                });
3772            }
3773        }
3774
3775        last_found
3776    }
3777
3778    fn find_visible_entry(
3779        &self,
3780        start: Option<&SelectedEntry>,
3781        reverse_search: bool,
3782        predicate: impl Fn(GitEntryRef, WorktreeId) -> bool,
3783        cx: &mut Context<Self>,
3784    ) -> Option<SelectedEntry> {
3785        let mut worktree_ids: Vec<_> = self
3786            .visible_entries
3787            .iter()
3788            .map(|worktree| worktree.worktree_id)
3789            .collect();
3790
3791        let mut last_found: Option<SelectedEntry> = None;
3792
3793        if let Some(start) = start {
3794            let entries = self
3795                .visible_entries
3796                .iter()
3797                .find(|worktree| worktree.worktree_id == start.worktree_id)
3798                .map(|worktree| &worktree.entries)?;
3799
3800            let mut start_idx = entries
3801                .iter()
3802                .enumerate()
3803                .find(|(_, ele)| ele.id == start.entry_id)
3804                .map(|(idx, _)| idx)?;
3805
3806            if reverse_search {
3807                start_idx = start_idx.saturating_add(1usize);
3808            }
3809
3810            let (left, right) = entries.split_at_checked(start_idx)?;
3811
3812            let (first_iter, second_iter) = if reverse_search {
3813                (
3814                    utils::ReversibleIterable::new(left.iter(), reverse_search),
3815                    utils::ReversibleIterable::new(right.iter(), reverse_search),
3816                )
3817            } else {
3818                (
3819                    utils::ReversibleIterable::new(right.iter(), reverse_search),
3820                    utils::ReversibleIterable::new(left.iter(), reverse_search),
3821                )
3822            };
3823
3824            let first_search = first_iter.find(|ele| predicate(ele.to_ref(), start.worktree_id));
3825            let second_search = second_iter.find(|ele| predicate(ele.to_ref(), start.worktree_id));
3826
3827            if first_search.is_some() {
3828                return first_search.map(|entry| SelectedEntry {
3829                    worktree_id: start.worktree_id,
3830                    entry_id: entry.id,
3831                });
3832            }
3833
3834            last_found = second_search.map(|entry| SelectedEntry {
3835                worktree_id: start.worktree_id,
3836                entry_id: entry.id,
3837            });
3838
3839            let idx = worktree_ids
3840                .iter()
3841                .enumerate()
3842                .find(|(_, ele)| **ele == start.worktree_id)
3843                .map(|(idx, _)| idx);
3844
3845            if let Some(idx) = idx {
3846                worktree_ids.rotate_left(idx + 1usize);
3847                worktree_ids.pop();
3848            }
3849        }
3850
3851        for tree_id in worktree_ids.into_iter() {
3852            if let Some(found) =
3853                self.find_entry_in_worktree(tree_id, reverse_search, true, &predicate, cx)
3854            {
3855                return Some(SelectedEntry {
3856                    worktree_id: tree_id,
3857                    entry_id: found.id,
3858                });
3859            }
3860        }
3861
3862        last_found
3863    }
3864
3865    fn calculate_depth_and_difference(
3866        entry: &Entry,
3867        visible_worktree_entries: &HashSet<Arc<Path>>,
3868    ) -> (usize, usize) {
3869        let (depth, difference) = entry
3870            .path
3871            .ancestors()
3872            .skip(1) // Skip the entry itself
3873            .find_map(|ancestor| {
3874                if let Some(parent_entry) = visible_worktree_entries.get(ancestor) {
3875                    let entry_path_components_count = entry.path.components().count();
3876                    let parent_path_components_count = parent_entry.components().count();
3877                    let difference = entry_path_components_count - parent_path_components_count;
3878                    let depth = parent_entry
3879                        .ancestors()
3880                        .skip(1)
3881                        .filter(|ancestor| visible_worktree_entries.contains(*ancestor))
3882                        .count();
3883                    Some((depth + 1, difference))
3884                } else {
3885                    None
3886                }
3887            })
3888            .unwrap_or_else(|| (0, entry.path.components().count()));
3889
3890        (depth, difference)
3891    }
3892
3893    fn highlight_entry_for_external_drag(
3894        &self,
3895        target_entry: &Entry,
3896        target_worktree: &Worktree,
3897    ) -> Option<ProjectEntryId> {
3898        // Always highlight directory or parent directory if it's file
3899        if target_entry.is_dir() {
3900            Some(target_entry.id)
3901        } else if let Some(parent_entry) = target_entry
3902            .path
3903            .parent()
3904            .and_then(|parent_path| target_worktree.entry_for_path(parent_path))
3905        {
3906            Some(parent_entry.id)
3907        } else {
3908            None
3909        }
3910    }
3911
3912    fn highlight_entry_for_selection_drag(
3913        &self,
3914        target_entry: &Entry,
3915        target_worktree: &Worktree,
3916        drag_state: &DraggedSelection,
3917        cx: &Context<Self>,
3918    ) -> Option<ProjectEntryId> {
3919        let target_parent_path = target_entry.path.parent();
3920
3921        // In case of single item drag, we do not highlight existing
3922        // directory which item belongs too
3923        if drag_state.items().count() == 1 {
3924            let active_entry_path = self
3925                .project
3926                .read(cx)
3927                .path_for_entry(drag_state.active_selection.entry_id, cx)?;
3928
3929            if let Some(active_parent_path) = active_entry_path.path.parent() {
3930                // Do not highlight active entry parent
3931                if active_parent_path == target_entry.path.as_ref() {
3932                    return None;
3933                }
3934
3935                // Do not highlight active entry sibling files
3936                if Some(active_parent_path) == target_parent_path && target_entry.is_file() {
3937                    return None;
3938                }
3939            }
3940        }
3941
3942        // Always highlight directory or parent directory if it's file
3943        if target_entry.is_dir() {
3944            Some(target_entry.id)
3945        } else if let Some(parent_entry) =
3946            target_parent_path.and_then(|parent_path| target_worktree.entry_for_path(parent_path))
3947        {
3948            Some(parent_entry.id)
3949        } else {
3950            None
3951        }
3952    }
3953
3954    fn render_entry(
3955        &self,
3956        entry_id: ProjectEntryId,
3957        details: EntryDetails,
3958        window: &mut Window,
3959        cx: &mut Context<Self>,
3960    ) -> Stateful<Div> {
3961        const GROUP_NAME: &str = "project_entry";
3962
3963        let kind = details.kind;
3964        let is_sticky = details.sticky.is_some();
3965        let sticky_index = details.sticky.as_ref().map(|this| this.sticky_index);
3966        let settings = ProjectPanelSettings::get_global(cx);
3967        let show_editor = details.is_editing && !details.is_processing;
3968
3969        let selection = SelectedEntry {
3970            worktree_id: details.worktree_id,
3971            entry_id,
3972        };
3973
3974        let is_marked = self.marked_entries.contains(&selection);
3975        let is_active = self
3976            .selection
3977            .is_some_and(|selection| selection.entry_id == entry_id);
3978
3979        let file_name = details.filename.clone();
3980
3981        let mut icon = details.icon.clone();
3982        if settings.file_icons && show_editor && details.kind.is_file() {
3983            let filename = self.filename_editor.read(cx).text(cx);
3984            if filename.len() > 2 {
3985                icon = FileIcons::get_icon(Path::new(&filename), cx);
3986            }
3987        }
3988
3989        let filename_text_color = details.filename_text_color;
3990        let diagnostic_severity = details.diagnostic_severity;
3991        let item_colors = get_item_color(is_sticky, cx);
3992
3993        let canonical_path = details
3994            .canonical_path
3995            .as_ref()
3996            .map(|f| f.to_string_lossy().to_string());
3997        let path = details.path.clone();
3998        let path_for_external_paths = path.clone();
3999        let path_for_dragged_selection = path.clone();
4000
4001        let depth = details.depth;
4002        let worktree_id = details.worktree_id;
4003        let dragged_selection = DraggedSelection {
4004            active_selection: selection,
4005            marked_selections: Arc::from(self.marked_entries.clone()),
4006        };
4007
4008        let bg_color = if is_marked {
4009            item_colors.marked
4010        } else {
4011            item_colors.default
4012        };
4013
4014        let bg_hover_color = if is_marked {
4015            item_colors.marked
4016        } else {
4017            item_colors.hover
4018        };
4019
4020        let validation_color_and_message = if show_editor {
4021            match self
4022                .edit_state
4023                .as_ref()
4024                .map_or(ValidationState::None, |e| e.validation_state.clone())
4025            {
4026                ValidationState::Error(msg) => Some((Color::Error.color(cx), msg.clone())),
4027                ValidationState::Warning(msg) => Some((Color::Warning.color(cx), msg.clone())),
4028                ValidationState::None => None,
4029            }
4030        } else {
4031            None
4032        };
4033
4034        let border_color =
4035            if !self.mouse_down && is_active && self.focus_handle.contains_focused(window, cx) {
4036                match validation_color_and_message {
4037                    Some((color, _)) => color,
4038                    None => item_colors.focused,
4039                }
4040            } else {
4041                bg_color
4042            };
4043
4044        let border_hover_color =
4045            if !self.mouse_down && is_active && self.focus_handle.contains_focused(window, cx) {
4046                match validation_color_and_message {
4047                    Some((color, _)) => color,
4048                    None => item_colors.focused,
4049                }
4050            } else {
4051                bg_hover_color
4052            };
4053
4054        let folded_directory_drag_target = self.folded_directory_drag_target;
4055        let is_highlighted = {
4056            if let Some(highlight_entry_id) = self
4057                .drag_target_entry
4058                .as_ref()
4059                .and_then(|drag_target| drag_target.highlight_entry_id)
4060            {
4061                // Highlight if same entry or it's children
4062                if entry_id == highlight_entry_id {
4063                    true
4064                } else {
4065                    maybe!({
4066                        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
4067                        let highlight_entry = worktree.read(cx).entry_for_id(highlight_entry_id)?;
4068                        Some(path.starts_with(&highlight_entry.path))
4069                    })
4070                    .unwrap_or(false)
4071                }
4072            } else {
4073                false
4074            }
4075        };
4076
4077        let id: ElementId = if is_sticky {
4078            SharedString::from(format!("project_panel_sticky_item_{}", entry_id.to_usize())).into()
4079        } else {
4080            (entry_id.to_proto() as usize).into()
4081        };
4082
4083        div()
4084            .id(id.clone())
4085            .relative()
4086            .group(GROUP_NAME)
4087            .cursor_pointer()
4088            .rounded_none()
4089            .bg(bg_color)
4090            .border_1()
4091            .border_r_2()
4092            .border_color(border_color)
4093            .hover(|style| style.bg(bg_hover_color).border_color(border_hover_color))
4094            .when(is_sticky, |this| {
4095                this.block_mouse_except_scroll()
4096            })
4097            .when(!is_sticky, |this| {
4098                this
4099                .when(is_highlighted && folded_directory_drag_target.is_none(), |this| this.border_color(transparent_white()).bg(item_colors.drag_over))
4100                .on_drag_move::<ExternalPaths>(cx.listener(
4101                    move |this, event: &DragMoveEvent<ExternalPaths>, _, cx| {
4102                        let is_current_target = this.drag_target_entry.as_ref()
4103                             .map(|entry| entry.entry_id) == Some(entry_id);
4104
4105                        if !event.bounds.contains(&event.event.position) {
4106                            // Entry responsible for setting drag target is also responsible to
4107                            // clear it up after drag is out of bounds
4108                            if is_current_target {
4109                                this.drag_target_entry = None;
4110                            }
4111                            return;
4112                        }
4113
4114                        if is_current_target {
4115                            return;
4116                        }
4117
4118                        let Some((entry_id, highlight_entry_id)) = maybe!({
4119                            let target_worktree = this.project.read(cx).worktree_for_id(selection.worktree_id, cx)?.read(cx);
4120                            let target_entry = target_worktree.entry_for_path(&path_for_external_paths)?;
4121                            let highlight_entry_id = this.highlight_entry_for_external_drag(target_entry, target_worktree);
4122                            Some((target_entry.id, highlight_entry_id))
4123                        }) else {
4124                            return;
4125                        };
4126
4127                        this.drag_target_entry = Some(DragTargetEntry {
4128                            entry_id,
4129                            highlight_entry_id,
4130                        });
4131                        this.marked_entries.clear();
4132                    },
4133                ))
4134                .on_drop(cx.listener(
4135                    move |this, external_paths: &ExternalPaths, window, cx| {
4136                        this.drag_target_entry = None;
4137                        this.hover_scroll_task.take();
4138                        this.drop_external_files(external_paths.paths(), entry_id, window, cx);
4139                        cx.stop_propagation();
4140                    },
4141                ))
4142                .on_drag_move::<DraggedSelection>(cx.listener(
4143                    move |this, event: &DragMoveEvent<DraggedSelection>, window, cx| {
4144                        let is_current_target = this.drag_target_entry.as_ref()
4145                             .map(|entry| entry.entry_id) == Some(entry_id);
4146
4147                        if !event.bounds.contains(&event.event.position) {
4148                            // Entry responsible for setting drag target is also responsible to
4149                            // clear it up after drag is out of bounds
4150                            if is_current_target {
4151                                this.drag_target_entry = None;
4152                            }
4153                            return;
4154                        }
4155
4156                        if is_current_target {
4157                            return;
4158                        }
4159
4160                        let drag_state = event.drag(cx);
4161                        let Some((entry_id, highlight_entry_id)) = maybe!({
4162                            let target_worktree = this.project.read(cx).worktree_for_id(selection.worktree_id, cx)?.read(cx);
4163                            let target_entry = target_worktree.entry_for_path(&path_for_dragged_selection)?;
4164                            let highlight_entry_id = this.highlight_entry_for_selection_drag(target_entry, target_worktree, drag_state, cx);
4165                            Some((target_entry.id, highlight_entry_id))
4166                        }) else {
4167                            return;
4168                        };
4169
4170                        this.drag_target_entry = Some(DragTargetEntry {
4171                            entry_id,
4172                            highlight_entry_id,
4173                        });
4174                        if drag_state.items().count() == 1 {
4175                            this.marked_entries.clear();
4176                            this.marked_entries.push(drag_state.active_selection);
4177                        }
4178                        this.hover_expand_task.take();
4179
4180                        if !kind.is_dir()
4181                            || this
4182                                .expanded_dir_ids
4183                                .get(&details.worktree_id)
4184                                .is_some_and(|ids| ids.binary_search(&entry_id).is_ok())
4185                        {
4186                            return;
4187                        }
4188
4189                        let bounds = event.bounds;
4190                        this.hover_expand_task =
4191                            Some(cx.spawn_in(window, async move |this, cx| {
4192                                cx.background_executor()
4193                                    .timer(Duration::from_millis(500))
4194                                    .await;
4195                                this.update_in(cx, |this, window, cx| {
4196                                    this.hover_expand_task.take();
4197                                    if this.drag_target_entry.as_ref().map(|entry| entry.entry_id) == Some(entry_id)
4198                                        && bounds.contains(&window.mouse_position())
4199                                    {
4200                                        this.expand_entry(worktree_id, entry_id, cx);
4201                                        this.update_visible_entries(
4202                                            Some((worktree_id, entry_id)),
4203                                            cx,
4204                                        );
4205                                        cx.notify();
4206                                    }
4207                                })
4208                                .ok();
4209                            }));
4210                    },
4211                ))
4212                .on_drag(
4213                    dragged_selection,
4214                    move |selection, click_offset, _window, cx| {
4215                        cx.new(|_| DraggedProjectEntryView {
4216                            details: details.clone(),
4217                            click_offset,
4218                            selection: selection.active_selection,
4219                            selections: selection.marked_selections.clone(),
4220                        })
4221                    },
4222                )
4223                .on_drop(
4224                    cx.listener(move |this, selections: &DraggedSelection, window, cx| {
4225                        this.drag_target_entry = None;
4226                        this.hover_scroll_task.take();
4227                        this.hover_expand_task.take();
4228                        if  folded_directory_drag_target.is_some() {
4229                            return;
4230                        }
4231                        this.drag_onto(selections, entry_id, kind.is_file(), window, cx);
4232                    }),
4233                )
4234            })
4235            .on_mouse_down(
4236                MouseButton::Left,
4237                cx.listener(move |this, _, _, cx| {
4238                    this.mouse_down = true;
4239                    cx.propagate();
4240                }),
4241            )
4242            .on_click(
4243                cx.listener(move |project_panel, event: &gpui::ClickEvent, window, cx| {
4244                    if event.is_right_click() || event.first_focus()
4245                        || show_editor
4246                    {
4247                        return;
4248                    }
4249                    if event.standard_click() {
4250                        project_panel.mouse_down = false;
4251                    }
4252                    cx.stop_propagation();
4253
4254                    if let Some(selection) = project_panel.selection.filter(|_| event.modifiers().shift) {
4255                        let current_selection = project_panel.index_for_selection(selection);
4256                        let clicked_entry = SelectedEntry {
4257                            entry_id,
4258                            worktree_id,
4259                        };
4260                        let target_selection = project_panel.index_for_selection(clicked_entry);
4261                        if let Some(((_, _, source_index), (_, _, target_index))) =
4262                            current_selection.zip(target_selection)
4263                        {
4264                            let range_start = source_index.min(target_index);
4265                            let range_end = source_index.max(target_index) + 1;
4266                            let mut new_selections = Vec::new();
4267                            project_panel.for_each_visible_entry(
4268                                range_start..range_end,
4269                                window,
4270                                cx,
4271                                |entry_id, details, _, _| {
4272                                    new_selections.push(SelectedEntry {
4273                                        entry_id,
4274                                        worktree_id: details.worktree_id,
4275                                    });
4276                                },
4277                            );
4278
4279                            for selection in &new_selections {
4280                                if !project_panel.marked_entries.contains(selection) {
4281                                    project_panel.marked_entries.push(*selection);
4282                                }
4283                            }
4284
4285                            project_panel.selection = Some(clicked_entry);
4286                            if !project_panel.marked_entries.contains(&clicked_entry) {
4287                                project_panel.marked_entries.push(clicked_entry);
4288                            }
4289                        }
4290                    } else if event.modifiers().secondary() {
4291                        if event.click_count() > 1 {
4292                            project_panel.split_entry(entry_id, cx);
4293                        } else {
4294                            project_panel.selection = Some(selection);
4295                            if let Some(position) = project_panel.marked_entries.iter().position(|e| *e == selection) {
4296                                project_panel.marked_entries.remove(position);
4297                            } else {
4298                                project_panel.marked_entries.push(selection);
4299                            }
4300                        }
4301                    } else if kind.is_dir() {
4302                        project_panel.marked_entries.clear();
4303                        if is_sticky
4304                            && let Some((_, _, index)) = project_panel.index_for_entry(entry_id, worktree_id) {
4305                                project_panel.scroll_handle.scroll_to_item_with_offset(index, ScrollStrategy::Top, sticky_index.unwrap_or(0));
4306                                cx.notify();
4307                                // move down by 1px so that clicked item
4308                                // don't count as sticky anymore
4309                                cx.on_next_frame(window, |_, window, cx| {
4310                                    cx.on_next_frame(window, |this, _, cx| {
4311                                        let mut offset = this.scroll_handle.offset();
4312                                        offset.y += px(1.);
4313                                        this.scroll_handle.set_offset(offset);
4314                                        cx.notify();
4315                                    });
4316                                });
4317                                return;
4318                            }
4319                        if event.modifiers().alt {
4320                            project_panel.toggle_expand_all(entry_id, window, cx);
4321                        } else {
4322                            project_panel.toggle_expanded(entry_id, window, cx);
4323                        }
4324                    } else {
4325                        let preview_tabs_enabled = PreviewTabsSettings::get_global(cx).enabled;
4326                        let click_count = event.click_count();
4327                        let focus_opened_item = !preview_tabs_enabled || click_count > 1;
4328                        let allow_preview = preview_tabs_enabled && click_count == 1;
4329                        project_panel.open_entry(entry_id, focus_opened_item, allow_preview, cx);
4330                    }
4331                }),
4332            )
4333            .child(
4334                ListItem::new(id)
4335                    .indent_level(depth)
4336                    .indent_step_size(px(settings.indent_size))
4337                    .spacing(match settings.entry_spacing {
4338                        project_panel_settings::EntrySpacing::Comfortable => ListItemSpacing::Dense,
4339                        project_panel_settings::EntrySpacing::Standard => {
4340                            ListItemSpacing::ExtraDense
4341                        }
4342                    })
4343                    .selectable(false)
4344                    .when_some(canonical_path, |this, path| {
4345                        this.end_slot::<AnyElement>(
4346                            div()
4347                                .id("symlink_icon")
4348                                .pr_3()
4349                                .tooltip(move |window, cx| {
4350                                    Tooltip::with_meta(
4351                                        path.to_string(),
4352                                        None,
4353                                        "Symbolic Link",
4354                                        window,
4355                                        cx,
4356                                    )
4357                                })
4358                                .child(
4359                                    Icon::new(IconName::ArrowUpRight)
4360                                        .size(IconSize::Indicator)
4361                                        .color(filename_text_color),
4362                                )
4363                                .into_any_element(),
4364                        )
4365                    })
4366                    .child(if let Some(icon) = &icon {
4367                        if let Some((_, decoration_color)) =
4368                            entry_diagnostic_aware_icon_decoration_and_color(diagnostic_severity)
4369                        {
4370                            let is_warning = diagnostic_severity
4371                                .map(|severity| matches!(severity, DiagnosticSeverity::WARNING))
4372                                .unwrap_or(false);
4373                            div().child(
4374                                DecoratedIcon::new(
4375                                    Icon::from_path(icon.clone()).color(Color::Muted),
4376                                    Some(
4377                                        IconDecoration::new(
4378                                            if kind.is_file() {
4379                                                if is_warning {
4380                                                    IconDecorationKind::Triangle
4381                                                } else {
4382                                                    IconDecorationKind::X
4383                                                }
4384                                            } else {
4385                                                IconDecorationKind::Dot
4386                                            },
4387                                            bg_color,
4388                                            cx,
4389                                        )
4390                                        .group_name(Some(GROUP_NAME.into()))
4391                                        .knockout_hover_color(bg_hover_color)
4392                                        .color(decoration_color.color(cx))
4393                                        .position(Point {
4394                                            x: px(-2.),
4395                                            y: px(-2.),
4396                                        }),
4397                                    ),
4398                                )
4399                                .into_any_element(),
4400                            )
4401                        } else {
4402                            h_flex().child(Icon::from_path(icon.to_string()).color(Color::Muted))
4403                        }
4404                    } else if let Some((icon_name, color)) =
4405                        entry_diagnostic_aware_icon_name_and_color(diagnostic_severity)
4406                    {
4407                        h_flex()
4408                            .size(IconSize::default().rems())
4409                            .child(Icon::new(icon_name).color(color).size(IconSize::Small))
4410                    } else {
4411                        h_flex()
4412                            .size(IconSize::default().rems())
4413                            .invisible()
4414                            .flex_none()
4415                    })
4416                    .child(
4417                        if let (Some(editor), true) = (Some(&self.filename_editor), show_editor) {
4418                            h_flex().h_6().w_full().child(editor.clone())
4419                        } else {
4420                            h_flex().h_6().map(|mut this| {
4421                                if let Some(folded_ancestors) = self.ancestors.get(&entry_id) {
4422                                    let components = Path::new(&file_name)
4423                                        .components()
4424                                        .map(|comp| {
4425                                            comp.as_os_str().to_string_lossy().into_owned()
4426                                        })
4427                                        .collect::<Vec<_>>();
4428
4429                                    let components_len = components.len();
4430                                    // TODO this can underflow
4431                                    let active_index = components_len
4432                                        - 1
4433                                        - folded_ancestors.current_ancestor_depth;
4434                                        const DELIMITER: SharedString =
4435                                        SharedString::new_static(std::path::MAIN_SEPARATOR_STR);
4436                                    for (index, component) in components.into_iter().enumerate() {
4437                                        if index != 0 {
4438                                                let delimiter_target_index = index - 1;
4439                                                let target_entry_id = folded_ancestors.ancestors.get(components_len - 1 - delimiter_target_index).cloned();
4440                                                this = this.child(
4441                                                    div()
4442                                                    .when(!is_sticky, |div| {
4443                                                        div
4444                                                            .on_drop(cx.listener(move |this, selections: &DraggedSelection, window, cx| {
4445                                                            this.hover_scroll_task.take();
4446                                                            this.drag_target_entry = None;
4447                                                            this.folded_directory_drag_target = None;
4448                                                            if let Some(target_entry_id) = target_entry_id {
4449                                                                this.drag_onto(selections, target_entry_id, kind.is_file(), window, cx);
4450                                                            }
4451                                                        }))
4452                                                        .on_drag_move(cx.listener(
4453                                                            move |this, event: &DragMoveEvent<DraggedSelection>, _, _| {
4454                                                                if event.bounds.contains(&event.event.position) {
4455                                                                    this.folded_directory_drag_target = Some(
4456                                                                        FoldedDirectoryDragTarget {
4457                                                                            entry_id,
4458                                                                            index: delimiter_target_index,
4459                                                                            is_delimiter_target: true,
4460                                                                        }
4461                                                                    );
4462                                                                } else {
4463                                                                    let is_current_target = this.folded_directory_drag_target
4464                                                                        .is_some_and(|target|
4465                                                                            target.entry_id == entry_id &&
4466                                                                            target.index == delimiter_target_index &&
4467                                                                            target.is_delimiter_target
4468                                                                        );
4469                                                                    if is_current_target {
4470                                                                        this.folded_directory_drag_target = None;
4471                                                                    }
4472                                                                }
4473
4474                                                            },
4475                                                        ))
4476                                                    })
4477                                                    .child(
4478                                                        Label::new(DELIMITER.clone())
4479                                                            .single_line()
4480                                                            .color(filename_text_color)
4481                                                    )
4482                                                );
4483                                        }
4484                                        let id = SharedString::from(format!(
4485                                            "project_panel_path_component_{}_{index}",
4486                                            entry_id.to_usize()
4487                                        ));
4488                                        let label = div()
4489                                            .id(id)
4490                                            .when(!is_sticky,| div| {
4491                                                div
4492                                                .when(index != components_len - 1, |div|{
4493                                                    let target_entry_id = folded_ancestors.ancestors.get(components_len - 1 - index).cloned();
4494                                                    div
4495                                                    .on_drag_move(cx.listener(
4496                                                        move |this, event: &DragMoveEvent<DraggedSelection>, _, _| {
4497                                                        if event.bounds.contains(&event.event.position) {
4498                                                                this.folded_directory_drag_target = Some(
4499                                                                    FoldedDirectoryDragTarget {
4500                                                                        entry_id,
4501                                                                        index,
4502                                                                        is_delimiter_target: false,
4503                                                                    }
4504                                                                );
4505                                                            } else {
4506                                                                let is_current_target = this.folded_directory_drag_target
4507                                                                    .as_ref()
4508                                                                    .is_some_and(|target|
4509                                                                        target.entry_id == entry_id &&
4510                                                                        target.index == index &&
4511                                                                        !target.is_delimiter_target
4512                                                                    );
4513                                                                if is_current_target {
4514                                                                    this.folded_directory_drag_target = None;
4515                                                                }
4516                                                            }
4517                                                        },
4518                                                    ))
4519                                                    .on_drop(cx.listener(move |this, selections: &DraggedSelection, window,cx| {
4520                                                        this.hover_scroll_task.take();
4521                                                        this.drag_target_entry = None;
4522                                                        this.folded_directory_drag_target = None;
4523                                                        if let Some(target_entry_id) = target_entry_id {
4524                                                            this.drag_onto(selections, target_entry_id, kind.is_file(), window, cx);
4525                                                        }
4526                                                    }))
4527                                                    .when(folded_directory_drag_target.is_some_and(|target|
4528                                                        target.entry_id == entry_id &&
4529                                                        target.index == index
4530                                                    ), |this| {
4531                                                        this.bg(item_colors.drag_over)
4532                                                    })
4533                                                })
4534                                            })
4535                                            .on_click(cx.listener(move |this, _, _, cx| {
4536                                                if index != active_index
4537                                                    && let Some(folds) =
4538                                                        this.ancestors.get_mut(&entry_id)
4539                                                    {
4540                                                        folds.current_ancestor_depth =
4541                                                            components_len - 1 - index;
4542                                                        cx.notify();
4543                                                    }
4544                                            }))
4545                                            .child(
4546                                                Label::new(component)
4547                                                    .single_line()
4548                                                    .color(filename_text_color)
4549                                                    .when(
4550                                                        index == active_index
4551                                                            && (is_active || is_marked),
4552                                                        |this| this.underline(),
4553                                                    ),
4554                                            );
4555
4556                                        this = this.child(label);
4557                                    }
4558
4559                                    this
4560                                } else {
4561                                    this.child(
4562                                        Label::new(file_name)
4563                                            .single_line()
4564                                            .color(filename_text_color),
4565                                    )
4566                                }
4567                            })
4568                        },
4569                    )
4570                    .on_secondary_mouse_down(cx.listener(
4571                        move |this, event: &MouseDownEvent, window, cx| {
4572                            // Stop propagation to prevent the catch-all context menu for the project
4573                            // panel from being deployed.
4574                            cx.stop_propagation();
4575                            // Some context menu actions apply to all marked entries. If the user
4576                            // right-clicks on an entry that is not marked, they may not realize the
4577                            // action applies to multiple entries. To avoid inadvertent changes, all
4578                            // entries are unmarked.
4579                            if !this.marked_entries.contains(&selection) {
4580                                this.marked_entries.clear();
4581                            }
4582                            this.deploy_context_menu(event.position, entry_id, window, cx);
4583                        },
4584                    ))
4585                    .overflow_x(),
4586            )
4587            .when_some(
4588                validation_color_and_message,
4589                |this, (color, message)| {
4590                    this
4591                    .relative()
4592                    .child(
4593                        deferred(
4594                            div()
4595                            .occlude()
4596                            .absolute()
4597                            .top_full()
4598                            .left(px(-1.)) // Used px over rem so that it doesn't change with font size
4599                            .right(px(-0.5))
4600                            .py_1()
4601                            .px_2()
4602                            .border_1()
4603                            .border_color(color)
4604                            .bg(cx.theme().colors().background)
4605                            .child(
4606                                Label::new(message)
4607                                .color(Color::from(color))
4608                                .size(LabelSize::Small)
4609                            )
4610                        )
4611                    )
4612                }
4613            )
4614    }
4615
4616    fn details_for_entry(
4617        &self,
4618        entry: &Entry,
4619        worktree_id: WorktreeId,
4620        root_name: &OsStr,
4621        entries_paths: &HashSet<Arc<Path>>,
4622        git_status: GitSummary,
4623        sticky: Option<StickyDetails>,
4624        _window: &mut Window,
4625        cx: &mut Context<Self>,
4626    ) -> EntryDetails {
4627        let (show_file_icons, show_folder_icons) = {
4628            let settings = ProjectPanelSettings::get_global(cx);
4629            (settings.file_icons, settings.folder_icons)
4630        };
4631
4632        let expanded_entry_ids = self
4633            .expanded_dir_ids
4634            .get(&worktree_id)
4635            .map(Vec::as_slice)
4636            .unwrap_or(&[]);
4637        let is_expanded = expanded_entry_ids.binary_search(&entry.id).is_ok();
4638
4639        let icon = match entry.kind {
4640            EntryKind::File => {
4641                if show_file_icons {
4642                    FileIcons::get_icon(&entry.path, cx)
4643                } else {
4644                    None
4645                }
4646            }
4647            _ => {
4648                if show_folder_icons {
4649                    FileIcons::get_folder_icon(is_expanded, cx)
4650                } else {
4651                    FileIcons::get_chevron_icon(is_expanded, cx)
4652                }
4653            }
4654        };
4655
4656        let (depth, difference) =
4657            ProjectPanel::calculate_depth_and_difference(entry, entries_paths);
4658
4659        let filename = match difference {
4660            diff if diff > 1 => entry
4661                .path
4662                .iter()
4663                .skip(entry.path.components().count() - diff)
4664                .collect::<PathBuf>()
4665                .to_str()
4666                .unwrap_or_default()
4667                .to_string(),
4668            _ => entry
4669                .path
4670                .file_name()
4671                .map(|name| name.to_string_lossy().into_owned())
4672                .unwrap_or_else(|| root_name.to_string_lossy().to_string()),
4673        };
4674
4675        let selection = SelectedEntry {
4676            worktree_id,
4677            entry_id: entry.id,
4678        };
4679        let is_marked = self.marked_entries.contains(&selection);
4680        let is_selected = self.selection == Some(selection);
4681
4682        let diagnostic_severity = self
4683            .diagnostics
4684            .get(&(worktree_id, entry.path.to_path_buf()))
4685            .cloned();
4686
4687        let filename_text_color =
4688            entry_git_aware_label_color(git_status, entry.is_ignored, is_marked);
4689
4690        let is_cut = self
4691            .clipboard
4692            .as_ref()
4693            .is_some_and(|e| e.is_cut() && e.items().contains(&selection));
4694
4695        EntryDetails {
4696            filename,
4697            icon,
4698            path: entry.path.clone(),
4699            depth,
4700            kind: entry.kind,
4701            is_ignored: entry.is_ignored,
4702            is_expanded,
4703            is_selected,
4704            is_marked,
4705            is_editing: false,
4706            is_processing: false,
4707            is_cut,
4708            sticky,
4709            filename_text_color,
4710            diagnostic_severity,
4711            git_status,
4712            is_private: entry.is_private,
4713            worktree_id,
4714            canonical_path: entry.canonical_path.clone(),
4715        }
4716    }
4717
4718    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
4719        if !Self::should_show_scrollbar(cx)
4720            || !(self.show_scrollbar || self.vertical_scrollbar_state.is_dragging())
4721        {
4722            return None;
4723        }
4724        Some(
4725            div()
4726                .occlude()
4727                .id("project-panel-vertical-scroll")
4728                .on_mouse_move(cx.listener(|_, _, _, cx| {
4729                    cx.notify();
4730                    cx.stop_propagation()
4731                }))
4732                .on_hover(|_, _, cx| {
4733                    cx.stop_propagation();
4734                })
4735                .on_any_mouse_down(|_, _, cx| {
4736                    cx.stop_propagation();
4737                })
4738                .on_mouse_up(
4739                    MouseButton::Left,
4740                    cx.listener(|this, _, window, cx| {
4741                        if !this.vertical_scrollbar_state.is_dragging()
4742                            && !this.focus_handle.contains_focused(window, cx)
4743                        {
4744                            this.hide_scrollbar(window, cx);
4745                            cx.notify();
4746                        }
4747
4748                        cx.stop_propagation();
4749                    }),
4750                )
4751                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
4752                    cx.notify();
4753                }))
4754                .h_full()
4755                .absolute()
4756                .right_1()
4757                .top_1()
4758                .bottom_1()
4759                .w(px(12.))
4760                .cursor_default()
4761                .children(Scrollbar::vertical(
4762                    // percentage as f32..end_offset as f32,
4763                    self.vertical_scrollbar_state.clone(),
4764                )),
4765        )
4766    }
4767
4768    fn render_horizontal_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
4769        if !Self::should_show_scrollbar(cx)
4770            || !(self.show_scrollbar || self.horizontal_scrollbar_state.is_dragging())
4771        {
4772            return None;
4773        }
4774        Scrollbar::horizontal(self.horizontal_scrollbar_state.clone()).map(|scrollbar| {
4775            div()
4776                .occlude()
4777                .id("project-panel-horizontal-scroll")
4778                .on_mouse_move(cx.listener(|_, _, _, cx| {
4779                    cx.notify();
4780                    cx.stop_propagation()
4781                }))
4782                .on_hover(|_, _, cx| {
4783                    cx.stop_propagation();
4784                })
4785                .on_any_mouse_down(|_, _, cx| {
4786                    cx.stop_propagation();
4787                })
4788                .on_mouse_up(
4789                    MouseButton::Left,
4790                    cx.listener(|this, _, window, cx| {
4791                        if !this.horizontal_scrollbar_state.is_dragging()
4792                            && !this.focus_handle.contains_focused(window, cx)
4793                        {
4794                            this.hide_scrollbar(window, cx);
4795                            cx.notify();
4796                        }
4797
4798                        cx.stop_propagation();
4799                    }),
4800                )
4801                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
4802                    cx.notify();
4803                }))
4804                .w_full()
4805                .absolute()
4806                .right_1()
4807                .left_1()
4808                .bottom_1()
4809                .h(px(12.))
4810                .cursor_default()
4811                .child(scrollbar)
4812        })
4813    }
4814
4815    fn dispatch_context(&self, window: &Window, cx: &Context<Self>) -> KeyContext {
4816        let mut dispatch_context = KeyContext::new_with_defaults();
4817        dispatch_context.add("ProjectPanel");
4818        dispatch_context.add("menu");
4819
4820        let identifier = if self.filename_editor.focus_handle(cx).is_focused(window) {
4821            "editing"
4822        } else {
4823            "not_editing"
4824        };
4825
4826        dispatch_context.add(identifier);
4827        dispatch_context
4828    }
4829
4830    fn should_show_scrollbar(cx: &App) -> bool {
4831        let show = ProjectPanelSettings::get_global(cx)
4832            .scrollbar
4833            .show
4834            .unwrap_or_else(|| EditorSettings::get_global(cx).scrollbar.show);
4835        match show {
4836            ShowScrollbar::Auto => true,
4837            ShowScrollbar::System => true,
4838            ShowScrollbar::Always => true,
4839            ShowScrollbar::Never => false,
4840        }
4841    }
4842
4843    fn should_autohide_scrollbar(cx: &App) -> bool {
4844        let show = ProjectPanelSettings::get_global(cx)
4845            .scrollbar
4846            .show
4847            .unwrap_or_else(|| EditorSettings::get_global(cx).scrollbar.show);
4848        match show {
4849            ShowScrollbar::Auto => true,
4850            ShowScrollbar::System => cx
4851                .try_global::<ScrollbarAutoHide>()
4852                .map_or_else(|| cx.should_auto_hide_scrollbars(), |autohide| autohide.0),
4853            ShowScrollbar::Always => false,
4854            ShowScrollbar::Never => true,
4855        }
4856    }
4857
4858    fn hide_scrollbar(&mut self, window: &mut Window, cx: &mut Context<Self>) {
4859        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
4860        if !Self::should_autohide_scrollbar(cx) {
4861            return;
4862        }
4863        self.hide_scrollbar_task = Some(cx.spawn_in(window, async move |panel, cx| {
4864            cx.background_executor()
4865                .timer(SCROLLBAR_SHOW_INTERVAL)
4866                .await;
4867            panel
4868                .update(cx, |panel, cx| {
4869                    panel.show_scrollbar = false;
4870                    cx.notify();
4871                })
4872                .log_err();
4873        }))
4874    }
4875
4876    fn reveal_entry(
4877        &mut self,
4878        project: Entity<Project>,
4879        entry_id: ProjectEntryId,
4880        skip_ignored: bool,
4881        cx: &mut Context<Self>,
4882    ) -> Result<()> {
4883        let worktree = project
4884            .read(cx)
4885            .worktree_for_entry(entry_id, cx)
4886            .context("can't reveal a non-existent entry in the project panel")?;
4887        let worktree = worktree.read(cx);
4888        if skip_ignored
4889            && worktree
4890                .entry_for_id(entry_id)
4891                .is_none_or(|entry| entry.is_ignored && !entry.is_always_included)
4892        {
4893            anyhow::bail!("can't reveal an ignored entry in the project panel");
4894        }
4895        let is_active_item_file_diff_view = self
4896            .workspace
4897            .upgrade()
4898            .and_then(|ws| ws.read(cx).active_item(cx))
4899            .map(|item| item.act_as_type(TypeId::of::<FileDiffView>(), cx).is_some())
4900            .unwrap_or(false);
4901        if is_active_item_file_diff_view {
4902            return Ok(());
4903        }
4904
4905        let worktree_id = worktree.id();
4906        self.expand_entry(worktree_id, entry_id, cx);
4907        self.update_visible_entries(Some((worktree_id, entry_id)), cx);
4908        self.marked_entries.clear();
4909        self.marked_entries.push(SelectedEntry {
4910            worktree_id,
4911            entry_id,
4912        });
4913        self.autoscroll(cx);
4914        cx.notify();
4915        Ok(())
4916    }
4917
4918    fn find_active_indent_guide(
4919        &self,
4920        indent_guides: &[IndentGuideLayout],
4921        cx: &App,
4922    ) -> Option<usize> {
4923        let (worktree, entry) = self.selected_entry(cx)?;
4924
4925        // Find the parent entry of the indent guide, this will either be the
4926        // expanded folder we have selected, or the parent of the currently
4927        // selected file/collapsed directory
4928        let mut entry = entry;
4929        loop {
4930            let is_expanded_dir = entry.is_dir()
4931                && self
4932                    .expanded_dir_ids
4933                    .get(&worktree.id())
4934                    .map(|ids| ids.binary_search(&entry.id).is_ok())
4935                    .unwrap_or(false);
4936            if is_expanded_dir {
4937                break;
4938            }
4939            entry = worktree.entry_for_path(&entry.path.parent()?)?;
4940        }
4941
4942        let (active_indent_range, depth) = {
4943            let (worktree_ix, child_offset, ix) = self.index_for_entry(entry.id, worktree.id())?;
4944            let child_paths = &self.visible_entries[worktree_ix].entries;
4945            let mut child_count = 0;
4946            let depth = entry.path.ancestors().count();
4947            while let Some(entry) = child_paths.get(child_offset + child_count + 1) {
4948                if entry.path.ancestors().count() <= depth {
4949                    break;
4950                }
4951                child_count += 1;
4952            }
4953
4954            let start = ix + 1;
4955            let end = start + child_count;
4956
4957            let visible_worktree = &self.visible_entries[worktree_ix];
4958            let visible_worktree_entries = visible_worktree.index.get_or_init(|| {
4959                visible_worktree
4960                    .entries
4961                    .iter()
4962                    .map(|e| (e.path.clone()))
4963                    .collect()
4964            });
4965
4966            // Calculate the actual depth of the entry, taking into account that directories can be auto-folded.
4967            let (depth, _) = Self::calculate_depth_and_difference(entry, visible_worktree_entries);
4968            (start..end, depth)
4969        };
4970
4971        let candidates = indent_guides
4972            .iter()
4973            .enumerate()
4974            .filter(|(_, indent_guide)| indent_guide.offset.x == depth);
4975
4976        for (i, indent) in candidates {
4977            // Find matches that are either an exact match, partially on screen, or inside the enclosing indent
4978            if active_indent_range.start <= indent.offset.y + indent.length
4979                && indent.offset.y <= active_indent_range.end
4980            {
4981                return Some(i);
4982            }
4983        }
4984        None
4985    }
4986
4987    fn render_sticky_entries(
4988        &self,
4989        child: StickyProjectPanelCandidate,
4990        window: &mut Window,
4991        cx: &mut Context<Self>,
4992    ) -> SmallVec<[AnyElement; 8]> {
4993        let project = self.project.read(cx);
4994
4995        let Some((worktree_id, entry_ref)) = self.entry_at_index(child.index) else {
4996            return SmallVec::new();
4997        };
4998
4999        let Some(visible) = self
5000            .visible_entries
5001            .iter()
5002            .find(|worktree| worktree.worktree_id == worktree_id)
5003        else {
5004            return SmallVec::new();
5005        };
5006
5007        let Some(worktree) = project.worktree_for_id(worktree_id, cx) else {
5008            return SmallVec::new();
5009        };
5010        let worktree = worktree.read(cx).snapshot();
5011
5012        let paths = visible
5013            .index
5014            .get_or_init(|| visible.entries.iter().map(|e| e.path.clone()).collect());
5015
5016        let mut sticky_parents = Vec::new();
5017        let mut current_path = entry_ref.path.clone();
5018
5019        'outer: loop {
5020            if let Some(parent_path) = current_path.parent() {
5021                for ancestor_path in parent_path.ancestors() {
5022                    if paths.contains(ancestor_path)
5023                        && let Some(parent_entry) = worktree.entry_for_path(ancestor_path)
5024                    {
5025                        sticky_parents.push(parent_entry.clone());
5026                        current_path = parent_entry.path.clone();
5027                        continue 'outer;
5028                    }
5029                }
5030            }
5031            break 'outer;
5032        }
5033
5034        if sticky_parents.is_empty() {
5035            return SmallVec::new();
5036        }
5037
5038        sticky_parents.reverse();
5039
5040        let git_status_enabled = ProjectPanelSettings::get_global(cx).git_status;
5041        let root_name = OsStr::new(worktree.root_name());
5042
5043        let git_summaries_by_id = if git_status_enabled {
5044            visible
5045                .entries
5046                .iter()
5047                .map(|e| (e.id, e.git_summary))
5048                .collect::<HashMap<_, _>>()
5049        } else {
5050            Default::default()
5051        };
5052
5053        // already checked if non empty above
5054        let last_item_index = sticky_parents.len() - 1;
5055        sticky_parents
5056            .iter()
5057            .enumerate()
5058            .map(|(index, entry)| {
5059                let git_status = git_summaries_by_id
5060                    .get(&entry.id)
5061                    .copied()
5062                    .unwrap_or_default();
5063                let sticky_details = Some(StickyDetails {
5064                    sticky_index: index,
5065                });
5066                let details = self.details_for_entry(
5067                    entry,
5068                    worktree_id,
5069                    root_name,
5070                    paths,
5071                    git_status,
5072                    sticky_details,
5073                    window,
5074                    cx,
5075                );
5076                self.render_entry(entry.id, details, window, cx)
5077                    .when(index == last_item_index, |this| {
5078                        let shadow_color_top = hsla(0.0, 0.0, 0.0, 0.1);
5079                        let shadow_color_bottom = hsla(0.0, 0.0, 0.0, 0.);
5080                        let sticky_shadow = div()
5081                            .absolute()
5082                            .left_0()
5083                            .bottom_neg_1p5()
5084                            .h_1p5()
5085                            .w_full()
5086                            .bg(linear_gradient(
5087                                0.,
5088                                linear_color_stop(shadow_color_top, 1.),
5089                                linear_color_stop(shadow_color_bottom, 0.),
5090                            ));
5091                        this.child(sticky_shadow)
5092                    })
5093                    .into_any()
5094            })
5095            .collect()
5096    }
5097}
5098
5099#[derive(Clone)]
5100struct StickyProjectPanelCandidate {
5101    index: usize,
5102    depth: usize,
5103}
5104
5105impl StickyCandidate for StickyProjectPanelCandidate {
5106    fn depth(&self) -> usize {
5107        self.depth
5108    }
5109}
5110
5111fn item_width_estimate(depth: usize, item_text_chars: usize, is_symlink: bool) -> usize {
5112    const ICON_SIZE_FACTOR: usize = 2;
5113    let mut item_width = depth * ICON_SIZE_FACTOR + item_text_chars;
5114    if is_symlink {
5115        item_width += ICON_SIZE_FACTOR;
5116    }
5117    item_width
5118}
5119
5120impl Render for ProjectPanel {
5121    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
5122        let has_worktree = !self.visible_entries.is_empty();
5123        let project = self.project.read(cx);
5124        let indent_size = ProjectPanelSettings::get_global(cx).indent_size;
5125        let show_indent_guides =
5126            ProjectPanelSettings::get_global(cx).indent_guides.show == ShowIndentGuides::Always;
5127        let show_sticky_entries = {
5128            if ProjectPanelSettings::get_global(cx).sticky_scroll {
5129                let is_scrollable = self.scroll_handle.is_scrollable();
5130                let is_scrolled = self.scroll_handle.offset().y < px(0.);
5131                is_scrollable && is_scrolled
5132            } else {
5133                false
5134            }
5135        };
5136
5137        let is_local = project.is_local();
5138
5139        if has_worktree {
5140            let item_count = self
5141                .visible_entries
5142                .iter()
5143                .map(|worktree| worktree.entries.len())
5144                .sum();
5145
5146            fn handle_drag_move<T: 'static>(
5147                this: &mut ProjectPanel,
5148                e: &DragMoveEvent<T>,
5149                window: &mut Window,
5150                cx: &mut Context<ProjectPanel>,
5151            ) {
5152                if let Some(previous_position) = this.previous_drag_position {
5153                    // Refresh cursor only when an actual drag happens,
5154                    // because modifiers are not updated when the cursor is not moved.
5155                    if e.event.position != previous_position {
5156                        this.refresh_drag_cursor_style(&e.event.modifiers, window, cx);
5157                    }
5158                }
5159                this.previous_drag_position = Some(e.event.position);
5160
5161                if !e.bounds.contains(&e.event.position) {
5162                    this.drag_target_entry = None;
5163                    return;
5164                }
5165                this.hover_scroll_task.take();
5166                let panel_height = e.bounds.size.height;
5167                if panel_height <= px(0.) {
5168                    return;
5169                }
5170
5171                let event_offset = e.event.position.y - e.bounds.origin.y;
5172                // How far along in the project panel is our cursor? (0. is the top of a list, 1. is the bottom)
5173                let hovered_region_offset = event_offset / panel_height;
5174
5175                // We want the scrolling to be a bit faster when the cursor is closer to the edge of a list.
5176                // These pixels offsets were picked arbitrarily.
5177                let vertical_scroll_offset = if hovered_region_offset <= 0.05 {
5178                    8.
5179                } else if hovered_region_offset <= 0.15 {
5180                    5.
5181                } else if hovered_region_offset >= 0.95 {
5182                    -8.
5183                } else if hovered_region_offset >= 0.85 {
5184                    -5.
5185                } else {
5186                    return;
5187                };
5188                let adjustment = point(px(0.), px(vertical_scroll_offset));
5189                this.hover_scroll_task = Some(cx.spawn_in(window, async move |this, cx| {
5190                    loop {
5191                        let should_stop_scrolling = this
5192                            .update(cx, |this, cx| {
5193                                this.hover_scroll_task.as_ref()?;
5194                                let handle = this.scroll_handle.0.borrow_mut();
5195                                let offset = handle.base_handle.offset();
5196
5197                                handle.base_handle.set_offset(offset + adjustment);
5198                                cx.notify();
5199                                Some(())
5200                            })
5201                            .ok()
5202                            .flatten()
5203                            .is_some();
5204                        if should_stop_scrolling {
5205                            return;
5206                        }
5207                        cx.background_executor()
5208                            .timer(Duration::from_millis(16))
5209                            .await;
5210                    }
5211                }));
5212            }
5213            h_flex()
5214                .id("project-panel")
5215                .group("project-panel")
5216                .on_drag_move(cx.listener(handle_drag_move::<ExternalPaths>))
5217                .on_drag_move(cx.listener(handle_drag_move::<DraggedSelection>))
5218                .size_full()
5219                .relative()
5220                .on_modifiers_changed(cx.listener(
5221                    |this, event: &ModifiersChangedEvent, window, cx| {
5222                        this.refresh_drag_cursor_style(&event.modifiers, window, cx);
5223                    },
5224                ))
5225                .on_hover(cx.listener(|this, hovered, window, cx| {
5226                    if *hovered {
5227                        this.show_scrollbar = true;
5228                        this.hide_scrollbar_task.take();
5229                        cx.notify();
5230                    } else if !this.focus_handle.contains_focused(window, cx) {
5231                        this.hide_scrollbar(window, cx);
5232                    }
5233                }))
5234                .on_click(cx.listener(|this, event, _, cx| {
5235                    if matches!(event, gpui::ClickEvent::Keyboard(_)) {
5236                        return;
5237                    }
5238                    cx.stop_propagation();
5239                    this.selection = None;
5240                    this.marked_entries.clear();
5241                }))
5242                .key_context(self.dispatch_context(window, cx))
5243                .on_action(cx.listener(Self::select_next))
5244                .on_action(cx.listener(Self::select_previous))
5245                .on_action(cx.listener(Self::select_first))
5246                .on_action(cx.listener(Self::select_last))
5247                .on_action(cx.listener(Self::select_parent))
5248                .on_action(cx.listener(Self::select_next_git_entry))
5249                .on_action(cx.listener(Self::select_prev_git_entry))
5250                .on_action(cx.listener(Self::select_next_diagnostic))
5251                .on_action(cx.listener(Self::select_prev_diagnostic))
5252                .on_action(cx.listener(Self::select_next_directory))
5253                .on_action(cx.listener(Self::select_prev_directory))
5254                .on_action(cx.listener(Self::expand_selected_entry))
5255                .on_action(cx.listener(Self::collapse_selected_entry))
5256                .on_action(cx.listener(Self::collapse_all_entries))
5257                .on_action(cx.listener(Self::open))
5258                .on_action(cx.listener(Self::open_permanent))
5259                .on_action(cx.listener(Self::confirm))
5260                .on_action(cx.listener(Self::cancel))
5261                .on_action(cx.listener(Self::copy_path))
5262                .on_action(cx.listener(Self::copy_relative_path))
5263                .on_action(cx.listener(Self::new_search_in_directory))
5264                .on_action(cx.listener(Self::unfold_directory))
5265                .on_action(cx.listener(Self::fold_directory))
5266                .on_action(cx.listener(Self::remove_from_project))
5267                .on_action(cx.listener(Self::compare_marked_files))
5268                .when(!project.is_read_only(cx), |el| {
5269                    el.on_action(cx.listener(Self::new_file))
5270                        .on_action(cx.listener(Self::new_directory))
5271                        .on_action(cx.listener(Self::rename))
5272                        .on_action(cx.listener(Self::delete))
5273                        .on_action(cx.listener(Self::trash))
5274                        .on_action(cx.listener(Self::cut))
5275                        .on_action(cx.listener(Self::copy))
5276                        .on_action(cx.listener(Self::paste))
5277                        .on_action(cx.listener(Self::duplicate))
5278                        .on_click(cx.listener(|this, event: &gpui::ClickEvent, window, cx| {
5279                            if event.click_count() > 1
5280                                && let Some(entry_id) = this.last_worktree_root_id
5281                            {
5282                                let project = this.project.read(cx);
5283
5284                                let worktree_id = if let Some(worktree) =
5285                                    project.worktree_for_entry(entry_id, cx)
5286                                {
5287                                    worktree.read(cx).id()
5288                                } else {
5289                                    return;
5290                                };
5291
5292                                this.selection = Some(SelectedEntry {
5293                                    worktree_id,
5294                                    entry_id,
5295                                });
5296
5297                                this.new_file(&NewFile, window, cx);
5298                            }
5299                        }))
5300                })
5301                .when(project.is_local(), |el| {
5302                    el.on_action(cx.listener(Self::reveal_in_finder))
5303                        .on_action(cx.listener(Self::open_system))
5304                        .on_action(cx.listener(Self::open_in_terminal))
5305                })
5306                .when(project.is_via_ssh(), |el| {
5307                    el.on_action(cx.listener(Self::open_in_terminal))
5308                })
5309                .on_mouse_down(
5310                    MouseButton::Right,
5311                    cx.listener(move |this, event: &MouseDownEvent, window, cx| {
5312                        // When deploying the context menu anywhere below the last project entry,
5313                        // act as if the user clicked the root of the last worktree.
5314                        if let Some(entry_id) = this.last_worktree_root_id {
5315                            this.deploy_context_menu(event.position, entry_id, window, cx);
5316                        }
5317                    }),
5318                )
5319                .track_focus(&self.focus_handle(cx))
5320                .child(
5321                    uniform_list("entries", item_count, {
5322                        cx.processor(|this, range: Range<usize>, window, cx| {
5323                            let mut items = Vec::with_capacity(range.end - range.start);
5324                            this.for_each_visible_entry(
5325                                range,
5326                                window,
5327                                cx,
5328                                |id, details, window, cx| {
5329                                    items.push(this.render_entry(id, details, window, cx));
5330                                },
5331                            );
5332                            items
5333                        })
5334                    })
5335                    .when(show_indent_guides, |list| {
5336                        list.with_decoration(
5337                            ui::indent_guides(px(indent_size), IndentGuideColors::panel(cx))
5338                                .with_compute_indents_fn(cx.entity(), |this, range, window, cx| {
5339                                    let mut items =
5340                                        SmallVec::with_capacity(range.end - range.start);
5341                                    this.iter_visible_entries(
5342                                        range,
5343                                        window,
5344                                        cx,
5345                                        |entry, _, entries, _, _| {
5346                                            let (depth, _) = Self::calculate_depth_and_difference(
5347                                                entry, entries,
5348                                            );
5349                                            items.push(depth);
5350                                        },
5351                                    );
5352                                    items
5353                                })
5354                                .on_click(cx.listener(
5355                                    |this, active_indent_guide: &IndentGuideLayout, window, cx| {
5356                                        if window.modifiers().secondary() {
5357                                            let ix = active_indent_guide.offset.y;
5358                                            let Some((target_entry, worktree)) = maybe!({
5359                                                let (worktree_id, entry) =
5360                                                    this.entry_at_index(ix)?;
5361                                                let worktree = this
5362                                                    .project
5363                                                    .read(cx)
5364                                                    .worktree_for_id(worktree_id, cx)?;
5365                                                let target_entry = worktree
5366                                                    .read(cx)
5367                                                    .entry_for_path(&entry.path.parent()?)?;
5368                                                Some((target_entry, worktree))
5369                                            }) else {
5370                                                return;
5371                                            };
5372
5373                                            this.collapse_entry(target_entry.clone(), worktree, cx);
5374                                        }
5375                                    },
5376                                ))
5377                                .with_render_fn(cx.entity(), move |this, params, _, cx| {
5378                                    const LEFT_OFFSET: Pixels = px(14.);
5379                                    const PADDING_Y: Pixels = px(4.);
5380                                    const HITBOX_OVERDRAW: Pixels = px(3.);
5381
5382                                    let active_indent_guide_index =
5383                                        this.find_active_indent_guide(&params.indent_guides, cx);
5384
5385                                    let indent_size = params.indent_size;
5386                                    let item_height = params.item_height;
5387
5388                                    params
5389                                        .indent_guides
5390                                        .into_iter()
5391                                        .enumerate()
5392                                        .map(|(idx, layout)| {
5393                                            let offset = if layout.continues_offscreen {
5394                                                px(0.)
5395                                            } else {
5396                                                PADDING_Y
5397                                            };
5398                                            let bounds = Bounds::new(
5399                                                point(
5400                                                    layout.offset.x * indent_size + LEFT_OFFSET,
5401                                                    layout.offset.y * item_height + offset,
5402                                                ),
5403                                                size(
5404                                                    px(1.),
5405                                                    layout.length * item_height - offset * 2.,
5406                                                ),
5407                                            );
5408                                            ui::RenderedIndentGuide {
5409                                                bounds,
5410                                                layout,
5411                                                is_active: Some(idx) == active_indent_guide_index,
5412                                                hitbox: Some(Bounds::new(
5413                                                    point(
5414                                                        bounds.origin.x - HITBOX_OVERDRAW,
5415                                                        bounds.origin.y,
5416                                                    ),
5417                                                    size(
5418                                                        bounds.size.width + HITBOX_OVERDRAW * 2.,
5419                                                        bounds.size.height,
5420                                                    ),
5421                                                )),
5422                                            }
5423                                        })
5424                                        .collect()
5425                                }),
5426                        )
5427                    })
5428                    .when(show_sticky_entries, |list| {
5429                        let sticky_items = ui::sticky_items(
5430                            cx.entity(),
5431                            |this, range, window, cx| {
5432                                let mut items = SmallVec::with_capacity(range.end - range.start);
5433                                this.iter_visible_entries(
5434                                    range,
5435                                    window,
5436                                    cx,
5437                                    |entry, index, entries, _, _| {
5438                                        let (depth, _) =
5439                                            Self::calculate_depth_and_difference(entry, entries);
5440                                        let candidate =
5441                                            StickyProjectPanelCandidate { index, depth };
5442                                        items.push(candidate);
5443                                    },
5444                                );
5445                                items
5446                            },
5447                            |this, marker_entry, window, cx| {
5448                                let sticky_entries =
5449                                    this.render_sticky_entries(marker_entry, window, cx);
5450                                this.sticky_items_count = sticky_entries.len();
5451                                sticky_entries
5452                            },
5453                        );
5454                        list.with_decoration(if show_indent_guides {
5455                            sticky_items.with_decoration(
5456                                ui::indent_guides(px(indent_size), IndentGuideColors::panel(cx))
5457                                    .with_render_fn(cx.entity(), move |_, params, _, _| {
5458                                        const LEFT_OFFSET: Pixels = px(14.);
5459
5460                                        let indent_size = params.indent_size;
5461                                        let item_height = params.item_height;
5462
5463                                        params
5464                                            .indent_guides
5465                                            .into_iter()
5466                                            .map(|layout| {
5467                                                let bounds = Bounds::new(
5468                                                    point(
5469                                                        layout.offset.x * indent_size + LEFT_OFFSET,
5470                                                        layout.offset.y * item_height,
5471                                                    ),
5472                                                    size(px(1.), layout.length * item_height),
5473                                                );
5474                                                ui::RenderedIndentGuide {
5475                                                    bounds,
5476                                                    layout,
5477                                                    is_active: false,
5478                                                    hitbox: None,
5479                                                }
5480                                            })
5481                                            .collect()
5482                                    }),
5483                            )
5484                        } else {
5485                            sticky_items
5486                        })
5487                    })
5488                    .size_full()
5489                    .with_sizing_behavior(ListSizingBehavior::Infer)
5490                    .with_horizontal_sizing_behavior(ListHorizontalSizingBehavior::Unconstrained)
5491                    .with_width_from_item(self.max_width_item_index)
5492                    .track_scroll(self.scroll_handle.clone()),
5493                )
5494                .children(self.render_vertical_scrollbar(cx))
5495                .when_some(self.render_horizontal_scrollbar(cx), |this, scrollbar| {
5496                    this.pb_4().child(scrollbar)
5497                })
5498                .children(self.context_menu.as_ref().map(|(menu, position, _)| {
5499                    deferred(
5500                        anchored()
5501                            .position(*position)
5502                            .anchor(gpui::Corner::TopLeft)
5503                            .child(menu.clone()),
5504                    )
5505                    .with_priority(3)
5506                }))
5507        } else {
5508            let focus_handle = self.focus_handle(cx).clone();
5509
5510            v_flex()
5511                .id("empty-project_panel")
5512                .p_4()
5513                .size_full()
5514                .items_center()
5515                .justify_center()
5516                .gap_1()
5517                .track_focus(&self.focus_handle(cx))
5518                .child(
5519                    Button::new("open_project", "Open Project")
5520                        .full_width()
5521                        .key_binding(KeyBinding::for_action_in(
5522                            &workspace::Open,
5523                            &focus_handle,
5524                            window,
5525                            cx,
5526                        ))
5527                        .on_click(cx.listener(|this, _, window, cx| {
5528                            this.workspace
5529                                .update(cx, |_, cx| {
5530                                    window.dispatch_action(workspace::Open.boxed_clone(), cx);
5531                                })
5532                                .log_err();
5533                        })),
5534                )
5535                .child(
5536                    h_flex()
5537                        .w_1_2()
5538                        .gap_2()
5539                        .child(Divider::horizontal())
5540                        .child(Label::new("or").size(LabelSize::XSmall).color(Color::Muted))
5541                        .child(Divider::horizontal()),
5542                )
5543                .child(
5544                    Button::new("clone_repo", "Clone Repository")
5545                        .full_width()
5546                        .on_click(cx.listener(|this, _, window, cx| {
5547                            this.workspace
5548                                .update(cx, |_, cx| {
5549                                    window.dispatch_action(git::Clone.boxed_clone(), cx);
5550                                })
5551                                .log_err();
5552                        })),
5553                )
5554                .when(is_local, |div| {
5555                    div.drag_over::<ExternalPaths>(|style, _, _, cx| {
5556                        style.bg(cx.theme().colors().drop_target_background)
5557                    })
5558                    .on_drop(cx.listener(
5559                        move |this, external_paths: &ExternalPaths, window, cx| {
5560                            this.drag_target_entry = None;
5561                            this.hover_scroll_task.take();
5562                            if let Some(task) = this
5563                                .workspace
5564                                .update(cx, |workspace, cx| {
5565                                    workspace.open_workspace_for_paths(
5566                                        true,
5567                                        external_paths.paths().to_owned(),
5568                                        window,
5569                                        cx,
5570                                    )
5571                                })
5572                                .log_err()
5573                            {
5574                                task.detach_and_log_err(cx);
5575                            }
5576                            cx.stop_propagation();
5577                        },
5578                    ))
5579                })
5580        }
5581    }
5582}
5583
5584impl Render for DraggedProjectEntryView {
5585    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
5586        let ui_font = ThemeSettings::get_global(cx).ui_font.clone();
5587        h_flex()
5588            .font(ui_font)
5589            .pl(self.click_offset.x + px(12.))
5590            .pt(self.click_offset.y + px(12.))
5591            .child(
5592                div()
5593                    .flex()
5594                    .gap_1()
5595                    .items_center()
5596                    .py_1()
5597                    .px_2()
5598                    .rounded_lg()
5599                    .bg(cx.theme().colors().background)
5600                    .map(|this| {
5601                        if self.selections.len() > 1 && self.selections.contains(&self.selection) {
5602                            this.child(Label::new(format!("{} entries", self.selections.len())))
5603                        } else {
5604                            this.child(if let Some(icon) = &self.details.icon {
5605                                div().child(Icon::from_path(icon.clone()))
5606                            } else {
5607                                div()
5608                            })
5609                            .child(Label::new(self.details.filename.clone()))
5610                        }
5611                    }),
5612            )
5613    }
5614}
5615
5616impl EventEmitter<Event> for ProjectPanel {}
5617
5618impl EventEmitter<PanelEvent> for ProjectPanel {}
5619
5620impl Panel for ProjectPanel {
5621    fn position(&self, _: &Window, cx: &App) -> DockPosition {
5622        match ProjectPanelSettings::get_global(cx).dock {
5623            ProjectPanelDockPosition::Left => DockPosition::Left,
5624            ProjectPanelDockPosition::Right => DockPosition::Right,
5625        }
5626    }
5627
5628    fn position_is_valid(&self, position: DockPosition) -> bool {
5629        matches!(position, DockPosition::Left | DockPosition::Right)
5630    }
5631
5632    fn set_position(&mut self, position: DockPosition, _: &mut Window, cx: &mut Context<Self>) {
5633        settings::update_settings_file::<ProjectPanelSettings>(
5634            self.fs.clone(),
5635            cx,
5636            move |settings, _| {
5637                let dock = match position {
5638                    DockPosition::Left | DockPosition::Bottom => ProjectPanelDockPosition::Left,
5639                    DockPosition::Right => ProjectPanelDockPosition::Right,
5640                };
5641                settings.dock = Some(dock);
5642            },
5643        );
5644    }
5645
5646    fn size(&self, _: &Window, cx: &App) -> Pixels {
5647        self.width
5648            .unwrap_or_else(|| ProjectPanelSettings::get_global(cx).default_width)
5649    }
5650
5651    fn set_size(&mut self, size: Option<Pixels>, window: &mut Window, cx: &mut Context<Self>) {
5652        self.width = size;
5653        cx.notify();
5654        cx.defer_in(window, |this, _, cx| {
5655            this.serialize(cx);
5656        });
5657    }
5658
5659    fn icon(&self, _: &Window, cx: &App) -> Option<IconName> {
5660        ProjectPanelSettings::get_global(cx)
5661            .button
5662            .then_some(IconName::FileTree)
5663    }
5664
5665    fn icon_tooltip(&self, _window: &Window, _cx: &App) -> Option<&'static str> {
5666        Some("Project Panel")
5667    }
5668
5669    fn toggle_action(&self) -> Box<dyn Action> {
5670        Box::new(ToggleFocus)
5671    }
5672
5673    fn persistent_name() -> &'static str {
5674        "Project Panel"
5675    }
5676
5677    fn starts_open(&self, _: &Window, cx: &App) -> bool {
5678        if !ProjectPanelSettings::get_global(cx).starts_open {
5679            return false;
5680        }
5681
5682        let project = &self.project.read(cx);
5683        project.visible_worktrees(cx).any(|tree| {
5684            tree.read(cx)
5685                .root_entry()
5686                .is_some_and(|entry| entry.is_dir())
5687        })
5688    }
5689
5690    fn activation_priority(&self) -> u32 {
5691        0
5692    }
5693}
5694
5695impl Focusable for ProjectPanel {
5696    fn focus_handle(&self, _cx: &App) -> FocusHandle {
5697        self.focus_handle.clone()
5698    }
5699}
5700
5701impl ClipboardEntry {
5702    fn is_cut(&self) -> bool {
5703        matches!(self, Self::Cut { .. })
5704    }
5705
5706    fn items(&self) -> &BTreeSet<SelectedEntry> {
5707        match self {
5708            ClipboardEntry::Copied(entries) | ClipboardEntry::Cut(entries) => entries,
5709        }
5710    }
5711
5712    fn into_copy_entry(self) -> Self {
5713        match self {
5714            ClipboardEntry::Copied(_) => self,
5715            ClipboardEntry::Cut(entries) => ClipboardEntry::Copied(entries),
5716        }
5717    }
5718}
5719
5720#[cfg(test)]
5721mod project_panel_tests;