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    SplitDirection, Workspace,
  68    dock::{DockPosition, Panel, PanelEvent},
  69    notifications::{DetachAndPromptErr, NotifyTaskExt},
  70};
  71use worktree::CreatedEntry;
  72use zed_actions::workspace::OpenWithSystem;
  73
  74const PROJECT_PANEL_KEY: &str = "ProjectPanel";
  75const NEW_ENTRY_ID: ProjectEntryId = ProjectEntryId::MAX;
  76
  77struct VisibleEntriesForWorktree {
  78    worktree_id: WorktreeId,
  79    entries: Vec<GitEntry>,
  80    index: OnceCell<HashSet<Arc<Path>>>,
  81}
  82
  83pub struct ProjectPanel {
  84    project: Entity<Project>,
  85    fs: Arc<dyn Fs>,
  86    focus_handle: FocusHandle,
  87    scroll_handle: UniformListScrollHandle,
  88    // An update loop that keeps incrementing/decrementing scroll offset while there is a dragged entry that's
  89    // hovered over the start/end of a list.
  90    hover_scroll_task: Option<Task<()>>,
  91    visible_entries: Vec<VisibleEntriesForWorktree>,
  92    /// Maps from leaf project entry ID to the currently selected ancestor.
  93    /// Relevant only for auto-fold dirs, where a single project panel entry may actually consist of several
  94    /// project entries (and all non-leaf nodes are guaranteed to be directories).
  95    ancestors: HashMap<ProjectEntryId, FoldedAncestors>,
  96    folded_directory_drag_target: Option<FoldedDirectoryDragTarget>,
  97    last_worktree_root_id: Option<ProjectEntryId>,
  98    drag_target_entry: Option<DragTarget>,
  99    expanded_dir_ids: HashMap<WorktreeId, Vec<ProjectEntryId>>,
 100    unfolded_dir_ids: HashSet<ProjectEntryId>,
 101    // Currently selected leaf entry (see auto-folding for a definition of that) in a file tree
 102    selection: Option<SelectedEntry>,
 103    marked_entries: Vec<SelectedEntry>,
 104    context_menu: Option<(Entity<ContextMenu>, Point<Pixels>, Subscription)>,
 105    edit_state: Option<EditState>,
 106    filename_editor: Entity<Editor>,
 107    clipboard: Option<ClipboardEntry>,
 108    _dragged_entry_destination: Option<Arc<Path>>,
 109    workspace: WeakEntity<Workspace>,
 110    width: Option<Pixels>,
 111    pending_serialization: Task<Option<()>>,
 112    show_scrollbar: bool,
 113    vertical_scrollbar_state: ScrollbarState,
 114    horizontal_scrollbar_state: ScrollbarState,
 115    hide_scrollbar_task: Option<Task<()>>,
 116    diagnostics: HashMap<(WorktreeId, PathBuf), DiagnosticSeverity>,
 117    max_width_item_index: Option<usize>,
 118    diagnostic_summary_update: Task<()>,
 119    // We keep track of the mouse down state on entries so we don't flash the UI
 120    // in case a user clicks to open a file.
 121    mouse_down: bool,
 122    hover_expand_task: Option<Task<()>>,
 123    previous_drag_position: Option<Point<Pixels>>,
 124    sticky_items_count: usize,
 125    last_reported_update: Instant,
 126}
 127
 128enum DragTarget {
 129    /// Dragging on an entry
 130    Entry {
 131        /// The entry currently under the mouse cursor during a drag operation
 132        entry_id: ProjectEntryId,
 133        /// Highlight this entry along with all of its children
 134        highlight_entry_id: ProjectEntryId,
 135    },
 136    /// Dragging on background
 137    Background,
 138}
 139
 140#[derive(Copy, Clone, Debug)]
 141struct FoldedDirectoryDragTarget {
 142    entry_id: ProjectEntryId,
 143    index: usize,
 144    /// Whether we are dragging over the delimiter rather than the component itself.
 145    is_delimiter_target: bool,
 146}
 147
 148#[derive(Clone, Debug)]
 149enum ValidationState {
 150    None,
 151    Warning(String),
 152    Error(String),
 153}
 154
 155#[derive(Clone, Debug)]
 156struct EditState {
 157    worktree_id: WorktreeId,
 158    entry_id: ProjectEntryId,
 159    leaf_entry_id: Option<ProjectEntryId>,
 160    is_dir: bool,
 161    depth: usize,
 162    processing_filename: Option<String>,
 163    previously_focused: Option<SelectedEntry>,
 164    validation_state: ValidationState,
 165}
 166
 167impl EditState {
 168    fn is_new_entry(&self) -> bool {
 169        self.leaf_entry_id.is_none()
 170    }
 171}
 172
 173#[derive(Clone, Debug)]
 174enum ClipboardEntry {
 175    Copied(BTreeSet<SelectedEntry>),
 176    Cut(BTreeSet<SelectedEntry>),
 177}
 178
 179#[derive(Debug, PartialEq, Eq, Clone)]
 180struct EntryDetails {
 181    filename: String,
 182    icon: Option<SharedString>,
 183    path: Arc<Path>,
 184    depth: usize,
 185    kind: EntryKind,
 186    is_ignored: bool,
 187    is_expanded: bool,
 188    is_selected: bool,
 189    is_marked: bool,
 190    is_editing: bool,
 191    is_processing: bool,
 192    is_cut: bool,
 193    sticky: Option<StickyDetails>,
 194    filename_text_color: Color,
 195    diagnostic_severity: Option<DiagnosticSeverity>,
 196    git_status: GitSummary,
 197    is_private: bool,
 198    worktree_id: WorktreeId,
 199    canonical_path: Option<Arc<Path>>,
 200}
 201
 202#[derive(Debug, PartialEq, Eq, Clone)]
 203struct StickyDetails {
 204    sticky_index: usize,
 205}
 206
 207/// Permanently deletes the selected file or directory.
 208#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
 209#[action(namespace = project_panel)]
 210#[serde(deny_unknown_fields)]
 211struct Delete {
 212    #[serde(default)]
 213    pub skip_prompt: bool,
 214}
 215
 216/// Moves the selected file or directory to the system trash.
 217#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
 218#[action(namespace = project_panel)]
 219#[serde(deny_unknown_fields)]
 220struct Trash {
 221    #[serde(default)]
 222    pub skip_prompt: bool,
 223}
 224
 225/// Selects the next entry with diagnostics.
 226#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
 227#[action(namespace = project_panel)]
 228#[serde(deny_unknown_fields)]
 229struct SelectNextDiagnostic {
 230    #[serde(default)]
 231    pub severity: GoToDiagnosticSeverityFilter,
 232}
 233
 234/// Selects the previous entry with diagnostics.
 235#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
 236#[action(namespace = project_panel)]
 237#[serde(deny_unknown_fields)]
 238struct SelectPrevDiagnostic {
 239    #[serde(default)]
 240    pub severity: GoToDiagnosticSeverityFilter,
 241}
 242
 243actions!(
 244    project_panel,
 245    [
 246        /// Expands the selected entry in the project tree.
 247        ExpandSelectedEntry,
 248        /// Collapses the selected entry in the project tree.
 249        CollapseSelectedEntry,
 250        /// Collapses all entries in the project tree.
 251        CollapseAllEntries,
 252        /// Creates a new directory.
 253        NewDirectory,
 254        /// Creates a new file.
 255        NewFile,
 256        /// Copies the selected file or directory.
 257        Copy,
 258        /// Duplicates the selected file or directory.
 259        Duplicate,
 260        /// Reveals the selected item in the system file manager.
 261        RevealInFileManager,
 262        /// Removes the selected folder from the project.
 263        RemoveFromProject,
 264        /// Cuts the selected file or directory.
 265        Cut,
 266        /// Pastes the previously cut or copied item.
 267        Paste,
 268        /// Renames the selected file or directory.
 269        Rename,
 270        /// Opens the selected file in the editor.
 271        Open,
 272        /// Opens the selected file in a permanent tab.
 273        OpenPermanent,
 274        /// Opens the selected file in a vertical split.
 275        OpenSplitVertical,
 276        /// Opens the selected file in a horizontal split.
 277        OpenSplitHorizontal,
 278        /// Toggles focus on the project panel.
 279        ToggleFocus,
 280        /// Toggles visibility of git-ignored files.
 281        ToggleHideGitIgnore,
 282        /// Starts a new search in the selected directory.
 283        NewSearchInDirectory,
 284        /// Unfolds the selected directory.
 285        UnfoldDirectory,
 286        /// Folds the selected directory.
 287        FoldDirectory,
 288        /// Selects the parent directory.
 289        SelectParent,
 290        /// Selects the next entry with git changes.
 291        SelectNextGitEntry,
 292        /// Selects the previous entry with git changes.
 293        SelectPrevGitEntry,
 294        /// Selects the next directory.
 295        SelectNextDirectory,
 296        /// Selects the previous directory.
 297        SelectPrevDirectory,
 298        /// Opens a diff view to compare two marked files.
 299        CompareMarkedFiles,
 300    ]
 301);
 302
 303#[derive(Debug, Default)]
 304struct FoldedAncestors {
 305    current_ancestor_depth: usize,
 306    ancestors: Vec<ProjectEntryId>,
 307}
 308
 309impl FoldedAncestors {
 310    fn max_ancestor_depth(&self) -> usize {
 311        self.ancestors.len()
 312    }
 313}
 314
 315pub fn init_settings(cx: &mut App) {
 316    ProjectPanelSettings::register(cx);
 317}
 318
 319pub fn init(cx: &mut App) {
 320    init_settings(cx);
 321
 322    cx.observe_new(|workspace: &mut Workspace, _, _| {
 323        workspace.register_action(|workspace, _: &ToggleFocus, window, cx| {
 324            workspace.toggle_panel_focus::<ProjectPanel>(window, cx);
 325        });
 326
 327        workspace.register_action(|workspace, _: &ToggleHideGitIgnore, _, cx| {
 328            let fs = workspace.app_state().fs.clone();
 329            update_settings_file::<ProjectPanelSettings>(fs, cx, move |setting, _| {
 330                setting.hide_gitignore = Some(!setting.hide_gitignore.unwrap_or(false));
 331            })
 332        });
 333
 334        workspace.register_action(|workspace, action: &CollapseAllEntries, window, cx| {
 335            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 336                panel.update(cx, |panel, cx| {
 337                    panel.collapse_all_entries(action, window, cx);
 338                });
 339            }
 340        });
 341
 342        workspace.register_action(|workspace, action: &Rename, window, cx| {
 343            workspace.open_panel::<ProjectPanel>(window, cx);
 344            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 345                panel.update(cx, |panel, cx| {
 346                    if let Some(first_marked) = panel.marked_entries.first() {
 347                        let first_marked = *first_marked;
 348                        panel.marked_entries.clear();
 349                        panel.selection = Some(first_marked);
 350                    }
 351                    panel.rename(action, window, cx);
 352                });
 353            }
 354        });
 355
 356        workspace.register_action(|workspace, action: &Duplicate, window, cx| {
 357            workspace.open_panel::<ProjectPanel>(window, cx);
 358            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 359                panel.update(cx, |panel, cx| {
 360                    panel.duplicate(action, window, cx);
 361                });
 362            }
 363        });
 364
 365        workspace.register_action(|workspace, action: &Delete, window, cx| {
 366            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 367                panel.update(cx, |panel, cx| panel.delete(action, window, cx));
 368            }
 369        });
 370    })
 371    .detach();
 372}
 373
 374#[derive(Debug)]
 375pub enum Event {
 376    OpenedEntry {
 377        entry_id: ProjectEntryId,
 378        focus_opened_item: bool,
 379        allow_preview: bool,
 380    },
 381    SplitEntry {
 382        entry_id: ProjectEntryId,
 383        allow_preview: bool,
 384        split_direction: Option<SplitDirection>,
 385    },
 386    Focus,
 387}
 388
 389#[derive(Serialize, Deserialize)]
 390struct SerializedProjectPanel {
 391    width: Option<Pixels>,
 392}
 393
 394struct DraggedProjectEntryView {
 395    selection: SelectedEntry,
 396    details: EntryDetails,
 397    click_offset: Point<Pixels>,
 398    selections: Arc<[SelectedEntry]>,
 399}
 400
 401struct ItemColors {
 402    default: Hsla,
 403    hover: Hsla,
 404    drag_over: Hsla,
 405    marked: Hsla,
 406    focused: Hsla,
 407}
 408
 409fn get_item_color(is_sticky: bool, cx: &App) -> ItemColors {
 410    let colors = cx.theme().colors();
 411
 412    ItemColors {
 413        default: if is_sticky {
 414            colors.panel_overlay_background
 415        } else {
 416            colors.panel_background
 417        },
 418        hover: if is_sticky {
 419            colors.panel_overlay_hover
 420        } else {
 421            colors.element_hover
 422        },
 423        marked: colors.element_selected,
 424        focused: colors.panel_focused_border,
 425        drag_over: colors.drop_target_background,
 426    }
 427}
 428
 429impl ProjectPanel {
 430    fn new(
 431        workspace: &mut Workspace,
 432        window: &mut Window,
 433        cx: &mut Context<Workspace>,
 434    ) -> Entity<Self> {
 435        let project = workspace.project().clone();
 436        let git_store = project.read(cx).git_store().clone();
 437        let project_panel = cx.new(|cx| {
 438            let focus_handle = cx.focus_handle();
 439            cx.on_focus(&focus_handle, window, Self::focus_in).detach();
 440            cx.on_focus_out(&focus_handle, window, |this, _, window, cx| {
 441                this.focus_out(window, cx);
 442                this.hide_scrollbar(window, cx);
 443            })
 444            .detach();
 445
 446            cx.subscribe(&git_store, |this, _, event, cx| match event {
 447                GitStoreEvent::RepositoryUpdated(_, _, _)
 448                | GitStoreEvent::RepositoryAdded(_)
 449                | GitStoreEvent::RepositoryRemoved(_) => {
 450                    this.update_visible_entries(None, cx);
 451                    cx.notify();
 452                }
 453                _ => {}
 454            })
 455            .detach();
 456
 457            cx.subscribe(&project, |this, project, event, cx| match event {
 458                project::Event::ActiveEntryChanged(Some(entry_id)) => {
 459                    if ProjectPanelSettings::get_global(cx).auto_reveal_entries {
 460                        this.reveal_entry(project, *entry_id, true, cx).ok();
 461                    }
 462                }
 463                project::Event::ActiveEntryChanged(None) => {
 464                    let is_active_item_file_diff_view = this
 465                        .workspace
 466                        .upgrade()
 467                        .and_then(|ws| ws.read(cx).active_item(cx))
 468                        .map(|item| item.act_as_type(TypeId::of::<FileDiffView>(), cx).is_some())
 469                        .unwrap_or(false);
 470                    if !is_active_item_file_diff_view {
 471                        this.marked_entries.clear();
 472                    }
 473                }
 474                project::Event::RevealInProjectPanel(entry_id) => {
 475                    if let Some(()) = this.reveal_entry(project, *entry_id, false, cx).log_err() {
 476                        cx.emit(PanelEvent::Activate);
 477                    }
 478                }
 479                project::Event::ActivateProjectPanel => {
 480                    cx.emit(PanelEvent::Activate);
 481                }
 482                project::Event::DiskBasedDiagnosticsFinished { .. }
 483                | project::Event::DiagnosticsUpdated { .. } => {
 484                    if ProjectPanelSettings::get_global(cx).show_diagnostics != ShowDiagnostics::Off
 485                    {
 486                        this.diagnostic_summary_update = cx.spawn(async move |this, cx| {
 487                            cx.background_executor()
 488                                .timer(Duration::from_millis(30))
 489                                .await;
 490                            this.update(cx, |this, cx| {
 491                                this.update_diagnostics(cx);
 492                                cx.notify();
 493                            })
 494                            .log_err();
 495                        });
 496                    }
 497                }
 498                project::Event::WorktreeRemoved(id) => {
 499                    this.expanded_dir_ids.remove(id);
 500                    this.update_visible_entries(None, cx);
 501                    cx.notify();
 502                }
 503                project::Event::WorktreeUpdatedEntries(_, _)
 504                | project::Event::WorktreeAdded(_)
 505                | project::Event::WorktreeOrderChanged => {
 506                    this.update_visible_entries(None, cx);
 507                    cx.notify();
 508                }
 509                project::Event::ExpandedAllForEntry(worktree_id, entry_id) => {
 510                    if let Some((worktree, expanded_dir_ids)) = project
 511                        .read(cx)
 512                        .worktree_for_id(*worktree_id, cx)
 513                        .zip(this.expanded_dir_ids.get_mut(worktree_id))
 514                    {
 515                        let worktree = worktree.read(cx);
 516
 517                        let Some(entry) = worktree.entry_for_id(*entry_id) else {
 518                            return;
 519                        };
 520                        let include_ignored_dirs = !entry.is_ignored;
 521
 522                        let mut dirs_to_expand = vec![*entry_id];
 523                        while let Some(current_id) = dirs_to_expand.pop() {
 524                            let Some(current_entry) = worktree.entry_for_id(current_id) else {
 525                                continue;
 526                            };
 527                            for child in worktree.child_entries(&current_entry.path) {
 528                                if !child.is_dir() || (include_ignored_dirs && child.is_ignored) {
 529                                    continue;
 530                                }
 531
 532                                dirs_to_expand.push(child.id);
 533
 534                                if let Err(ix) = expanded_dir_ids.binary_search(&child.id) {
 535                                    expanded_dir_ids.insert(ix, child.id);
 536                                }
 537                                this.unfolded_dir_ids.insert(child.id);
 538                            }
 539                        }
 540                        this.update_visible_entries(None, cx);
 541                        cx.notify();
 542                    }
 543                }
 544                _ => {}
 545            })
 546            .detach();
 547
 548            let trash_action = [TypeId::of::<Trash>()];
 549            let is_remote = project.read(cx).is_via_collab();
 550
 551            if is_remote {
 552                CommandPaletteFilter::update_global(cx, |filter, _cx| {
 553                    filter.hide_action_types(&trash_action);
 554                });
 555            }
 556
 557            let filename_editor = cx.new(|cx| Editor::single_line(window, cx));
 558
 559            cx.subscribe(
 560                &filename_editor,
 561                |project_panel, _, editor_event, cx| match editor_event {
 562                    EditorEvent::BufferEdited => {
 563                        project_panel.populate_validation_error(cx);
 564                        project_panel.autoscroll(cx);
 565                    }
 566                    EditorEvent::SelectionsChanged { .. } => {
 567                        project_panel.autoscroll(cx);
 568                    }
 569                    EditorEvent::Blurred => {
 570                        if project_panel
 571                            .edit_state
 572                            .as_ref()
 573                            .is_some_and(|state| state.processing_filename.is_none())
 574                        {
 575                            project_panel.edit_state = None;
 576                            project_panel.update_visible_entries(None, cx);
 577                            cx.notify();
 578                        }
 579                    }
 580                    _ => {}
 581                },
 582            )
 583            .detach();
 584
 585            cx.observe_global::<FileIcons>(|_, cx| {
 586                cx.notify();
 587            })
 588            .detach();
 589
 590            let mut project_panel_settings = *ProjectPanelSettings::get_global(cx);
 591            cx.observe_global::<SettingsStore>(move |this, cx| {
 592                let new_settings = *ProjectPanelSettings::get_global(cx);
 593                if project_panel_settings != new_settings {
 594                    if project_panel_settings.hide_gitignore != new_settings.hide_gitignore {
 595                        this.update_visible_entries(None, cx);
 596                    }
 597                    if project_panel_settings.hide_root != new_settings.hide_root {
 598                        this.update_visible_entries(None, cx);
 599                    }
 600                    if project_panel_settings.sticky_scroll && !new_settings.sticky_scroll {
 601                        this.sticky_items_count = 0;
 602                    }
 603                    project_panel_settings = new_settings;
 604                    this.update_diagnostics(cx);
 605                    cx.notify();
 606                }
 607            })
 608            .detach();
 609
 610            let scroll_handle = UniformListScrollHandle::new();
 611            let mut this = Self {
 612                project: project.clone(),
 613                hover_scroll_task: None,
 614                fs: workspace.app_state().fs.clone(),
 615                focus_handle,
 616                visible_entries: Default::default(),
 617                ancestors: Default::default(),
 618                folded_directory_drag_target: None,
 619                drag_target_entry: None,
 620                last_worktree_root_id: Default::default(),
 621                expanded_dir_ids: Default::default(),
 622                unfolded_dir_ids: Default::default(),
 623                selection: None,
 624                marked_entries: Default::default(),
 625                edit_state: None,
 626                context_menu: None,
 627                filename_editor,
 628                clipboard: None,
 629                _dragged_entry_destination: None,
 630                workspace: workspace.weak_handle(),
 631                width: None,
 632                pending_serialization: Task::ready(None),
 633                show_scrollbar: !Self::should_autohide_scrollbar(cx),
 634                hide_scrollbar_task: None,
 635                vertical_scrollbar_state: ScrollbarState::new(scroll_handle.clone())
 636                    .parent_entity(&cx.entity()),
 637                horizontal_scrollbar_state: ScrollbarState::new(scroll_handle.clone())
 638                    .parent_entity(&cx.entity()),
 639                max_width_item_index: None,
 640                diagnostics: Default::default(),
 641                diagnostic_summary_update: Task::ready(()),
 642                scroll_handle,
 643                mouse_down: false,
 644                hover_expand_task: None,
 645                previous_drag_position: None,
 646                sticky_items_count: 0,
 647                last_reported_update: Instant::now(),
 648            };
 649            this.update_visible_entries(None, cx);
 650
 651            this
 652        });
 653
 654        cx.subscribe_in(&project_panel, window, {
 655            let project_panel = project_panel.downgrade();
 656            move |workspace, _, event, window, cx| match event {
 657                &Event::OpenedEntry {
 658                    entry_id,
 659                    focus_opened_item,
 660                    allow_preview,
 661                } => {
 662                    if let Some(worktree) = project.read(cx).worktree_for_entry(entry_id, cx)
 663                        && let Some(entry) = worktree.read(cx).entry_for_id(entry_id) {
 664                            let file_path = entry.path.clone();
 665                            let worktree_id = worktree.read(cx).id();
 666                            let entry_id = entry.id;
 667                            let is_via_ssh = project.read(cx).is_via_remote_server();
 668
 669                            workspace
 670                                .open_path_preview(
 671                                    ProjectPath {
 672                                        worktree_id,
 673                                        path: file_path.clone(),
 674                                    },
 675                                    None,
 676                                    focus_opened_item,
 677                                    allow_preview,
 678                                    true,
 679                                    window, cx,
 680                                )
 681                                .detach_and_prompt_err("Failed to open file", window, cx, move |e, _, _| {
 682                                    match e.error_code() {
 683                                        ErrorCode::Disconnected => if is_via_ssh {
 684                                            Some("Disconnected from SSH host".to_string())
 685                                        } else {
 686                                            Some("Disconnected from remote project".to_string())
 687                                        },
 688                                        ErrorCode::UnsharedItem => Some(format!(
 689                                            "{} is not shared by the host. This could be because it has been marked as `private`",
 690                                            file_path.display()
 691                                        )),
 692                                        // See note in worktree.rs where this error originates. Returning Some in this case prevents
 693                                        // the error popup from saying "Try Again", which is a red herring in this case
 694                                        ErrorCode::Internal if e.to_string().contains("File is too large to load") => Some(e.to_string()),
 695                                        _ => None,
 696                                    }
 697                                });
 698
 699                            if let Some(project_panel) = project_panel.upgrade() {
 700                                // Always select and mark the entry, regardless of whether it is opened or not.
 701                                project_panel.update(cx, |project_panel, _| {
 702                                    let entry = SelectedEntry { worktree_id, entry_id };
 703                                    project_panel.marked_entries.clear();
 704                                    project_panel.marked_entries.push(entry);
 705                                    project_panel.selection = Some(entry);
 706                                });
 707                                if !focus_opened_item {
 708                                    let focus_handle = project_panel.read(cx).focus_handle.clone();
 709                                    window.focus(&focus_handle);
 710                                }
 711                            }
 712                        }
 713                }
 714                &Event::SplitEntry {
 715                    entry_id,
 716                    allow_preview,
 717                    split_direction,
 718                } => {
 719                    if let Some(worktree) = project.read(cx).worktree_for_entry(entry_id, cx)
 720                        && let Some(entry) = worktree.read(cx).entry_for_id(entry_id) {
 721                            workspace
 722                                .split_path_preview(
 723                                    ProjectPath {
 724                                        worktree_id: worktree.read(cx).id(),
 725                                        path: entry.path.clone(),
 726                                    },
 727                                    allow_preview,
 728                                    split_direction,
 729                                    window, cx,
 730                                )
 731                                .detach_and_log_err(cx);
 732                        }
 733                }
 734
 735                _ => {}
 736            }
 737        })
 738        .detach();
 739
 740        project_panel
 741    }
 742
 743    pub async fn load(
 744        workspace: WeakEntity<Workspace>,
 745        mut cx: AsyncWindowContext,
 746    ) -> Result<Entity<Self>> {
 747        let serialized_panel = match workspace
 748            .read_with(&cx, |workspace, _| {
 749                ProjectPanel::serialization_key(workspace)
 750            })
 751            .ok()
 752            .flatten()
 753        {
 754            Some(serialization_key) => cx
 755                .background_spawn(async move { KEY_VALUE_STORE.read_kvp(&serialization_key) })
 756                .await
 757                .context("loading project panel")
 758                .log_err()
 759                .flatten()
 760                .map(|panel| serde_json::from_str::<SerializedProjectPanel>(&panel))
 761                .transpose()
 762                .log_err()
 763                .flatten(),
 764            None => None,
 765        };
 766
 767        workspace.update_in(&mut cx, |workspace, window, cx| {
 768            let panel = ProjectPanel::new(workspace, window, cx);
 769            if let Some(serialized_panel) = serialized_panel {
 770                panel.update(cx, |panel, cx| {
 771                    panel.width = serialized_panel.width.map(|px| px.round());
 772                    cx.notify();
 773                });
 774            }
 775            panel
 776        })
 777    }
 778
 779    fn update_diagnostics(&mut self, cx: &mut Context<Self>) {
 780        let mut diagnostics: HashMap<(WorktreeId, PathBuf), DiagnosticSeverity> =
 781            Default::default();
 782        let show_diagnostics_setting = ProjectPanelSettings::get_global(cx).show_diagnostics;
 783
 784        if show_diagnostics_setting != ShowDiagnostics::Off {
 785            self.project
 786                .read(cx)
 787                .diagnostic_summaries(false, cx)
 788                .filter_map(|(path, _, diagnostic_summary)| {
 789                    if diagnostic_summary.error_count > 0 {
 790                        Some((path, DiagnosticSeverity::ERROR))
 791                    } else if show_diagnostics_setting == ShowDiagnostics::All
 792                        && diagnostic_summary.warning_count > 0
 793                    {
 794                        Some((path, DiagnosticSeverity::WARNING))
 795                    } else {
 796                        None
 797                    }
 798                })
 799                .for_each(|(project_path, diagnostic_severity)| {
 800                    let mut path_buffer = PathBuf::new();
 801                    Self::update_strongest_diagnostic_severity(
 802                        &mut diagnostics,
 803                        &project_path,
 804                        path_buffer.clone(),
 805                        diagnostic_severity,
 806                    );
 807
 808                    for component in project_path.path.components() {
 809                        path_buffer.push(component);
 810                        Self::update_strongest_diagnostic_severity(
 811                            &mut diagnostics,
 812                            &project_path,
 813                            path_buffer.clone(),
 814                            diagnostic_severity,
 815                        );
 816                    }
 817                });
 818        }
 819        self.diagnostics = diagnostics;
 820    }
 821
 822    fn update_strongest_diagnostic_severity(
 823        diagnostics: &mut HashMap<(WorktreeId, PathBuf), DiagnosticSeverity>,
 824        project_path: &ProjectPath,
 825        path_buffer: PathBuf,
 826        diagnostic_severity: DiagnosticSeverity,
 827    ) {
 828        diagnostics
 829            .entry((project_path.worktree_id, path_buffer))
 830            .and_modify(|strongest_diagnostic_severity| {
 831                *strongest_diagnostic_severity =
 832                    cmp::min(*strongest_diagnostic_severity, diagnostic_severity);
 833            })
 834            .or_insert(diagnostic_severity);
 835    }
 836
 837    fn serialization_key(workspace: &Workspace) -> Option<String> {
 838        workspace
 839            .database_id()
 840            .map(|id| i64::from(id).to_string())
 841            .or(workspace.session_id())
 842            .map(|id| format!("{}-{:?}", PROJECT_PANEL_KEY, id))
 843    }
 844
 845    fn serialize(&mut self, cx: &mut Context<Self>) {
 846        let Some(serialization_key) = self
 847            .workspace
 848            .read_with(cx, |workspace, _| {
 849                ProjectPanel::serialization_key(workspace)
 850            })
 851            .ok()
 852            .flatten()
 853        else {
 854            return;
 855        };
 856        let width = self.width;
 857        self.pending_serialization = cx.background_spawn(
 858            async move {
 859                KEY_VALUE_STORE
 860                    .write_kvp(
 861                        serialization_key,
 862                        serde_json::to_string(&SerializedProjectPanel { width })?,
 863                    )
 864                    .await?;
 865                anyhow::Ok(())
 866            }
 867            .log_err(),
 868        );
 869    }
 870
 871    fn focus_in(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 872        if !self.focus_handle.contains_focused(window, cx) {
 873            cx.emit(Event::Focus);
 874        }
 875    }
 876
 877    fn focus_out(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 878        if !self.focus_handle.is_focused(window) {
 879            self.confirm(&Confirm, window, cx);
 880        }
 881    }
 882
 883    fn deploy_context_menu(
 884        &mut self,
 885        position: Point<Pixels>,
 886        entry_id: ProjectEntryId,
 887        window: &mut Window,
 888        cx: &mut Context<Self>,
 889    ) {
 890        let project = self.project.read(cx);
 891
 892        let worktree_id = if let Some(id) = project.worktree_id_for_entry(entry_id, cx) {
 893            id
 894        } else {
 895            return;
 896        };
 897
 898        self.selection = Some(SelectedEntry {
 899            worktree_id,
 900            entry_id,
 901        });
 902
 903        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
 904            let auto_fold_dirs = ProjectPanelSettings::get_global(cx).auto_fold_dirs;
 905            let worktree = worktree.read(cx);
 906            let is_root = Some(entry) == worktree.root_entry();
 907            let is_dir = entry.is_dir();
 908            let is_foldable = auto_fold_dirs && self.is_foldable(entry, worktree);
 909            let is_unfoldable = auto_fold_dirs && self.is_unfoldable(entry, worktree);
 910            let is_read_only = project.is_read_only(cx);
 911            let is_remote = project.is_via_collab();
 912            let is_local = project.is_local();
 913
 914            let settings = ProjectPanelSettings::get_global(cx);
 915            let visible_worktrees_count = project.visible_worktrees(cx).count();
 916            let should_hide_rename = is_root
 917                && (cfg!(target_os = "windows")
 918                    || (settings.hide_root && visible_worktrees_count == 1));
 919            let should_show_compare = !is_dir && self.file_abs_paths_to_diff(cx).is_some();
 920
 921            let context_menu = ContextMenu::build(window, cx, |menu, _, _| {
 922                menu.context(self.focus_handle.clone()).map(|menu| {
 923                    if is_read_only {
 924                        menu.when(is_dir, |menu| {
 925                            menu.action("Search Inside", Box::new(NewSearchInDirectory))
 926                        })
 927                    } else {
 928                        menu.action("New File", Box::new(NewFile))
 929                            .action("New Folder", Box::new(NewDirectory))
 930                            .separator()
 931                            .when(is_local && cfg!(target_os = "macos"), |menu| {
 932                                menu.action("Reveal in Finder", Box::new(RevealInFileManager))
 933                            })
 934                            .when(is_local && cfg!(not(target_os = "macos")), |menu| {
 935                                menu.action("Reveal in File Manager", Box::new(RevealInFileManager))
 936                            })
 937                            .when(is_local, |menu| {
 938                                menu.action("Open in Default App", Box::new(OpenWithSystem))
 939                            })
 940                            .action("Open in Terminal", Box::new(OpenInTerminal))
 941                            .when(is_dir, |menu| {
 942                                menu.separator()
 943                                    .action("Find in Folder…", Box::new(NewSearchInDirectory))
 944                            })
 945                            .when(is_unfoldable, |menu| {
 946                                menu.action("Unfold Directory", Box::new(UnfoldDirectory))
 947                            })
 948                            .when(is_foldable, |menu| {
 949                                menu.action("Fold Directory", Box::new(FoldDirectory))
 950                            })
 951                            .when(should_show_compare, |menu| {
 952                                menu.separator()
 953                                    .action("Compare marked files", Box::new(CompareMarkedFiles))
 954                            })
 955                            .separator()
 956                            .action("Cut", Box::new(Cut))
 957                            .action("Copy", Box::new(Copy))
 958                            .action("Duplicate", Box::new(Duplicate))
 959                            // TODO: Paste should always be visible, cbut disabled when clipboard is empty
 960                            .action_disabled_when(
 961                                self.clipboard.as_ref().is_none(),
 962                                "Paste",
 963                                Box::new(Paste),
 964                            )
 965                            .separator()
 966                            .action("Copy Path", Box::new(zed_actions::workspace::CopyPath))
 967                            .action(
 968                                "Copy Relative Path",
 969                                Box::new(zed_actions::workspace::CopyRelativePath),
 970                            )
 971                            .separator()
 972                            .when(!should_hide_rename, |menu| {
 973                                menu.action("Rename", Box::new(Rename))
 974                            })
 975                            .when(!is_root & !is_remote, |menu| {
 976                                menu.action("Trash", Box::new(Trash { skip_prompt: false }))
 977                            })
 978                            .when(!is_root, |menu| {
 979                                menu.action("Delete", Box::new(Delete { skip_prompt: false }))
 980                            })
 981                            .when(!is_remote & is_root, |menu| {
 982                                menu.separator()
 983                                    .action(
 984                                        "Add Folder to Project…",
 985                                        Box::new(workspace::AddFolderToProject),
 986                                    )
 987                                    .action("Remove from Project", Box::new(RemoveFromProject))
 988                            })
 989                            .when(is_root, |menu| {
 990                                menu.separator()
 991                                    .action("Collapse All", Box::new(CollapseAllEntries))
 992                            })
 993                    }
 994                })
 995            });
 996
 997            window.focus(&context_menu.focus_handle(cx));
 998            let subscription = cx.subscribe(&context_menu, |this, _, _: &DismissEvent, cx| {
 999                this.context_menu.take();
1000                cx.notify();
1001            });
1002            self.context_menu = Some((context_menu, position, subscription));
1003        }
1004
1005        cx.notify();
1006    }
1007
1008    fn is_unfoldable(&self, entry: &Entry, worktree: &Worktree) -> bool {
1009        if !entry.is_dir() || self.unfolded_dir_ids.contains(&entry.id) {
1010            return false;
1011        }
1012
1013        if let Some(parent_path) = entry.path.parent() {
1014            let snapshot = worktree.snapshot();
1015            let mut child_entries = snapshot.child_entries(parent_path);
1016            if let Some(child) = child_entries.next()
1017                && child_entries.next().is_none()
1018            {
1019                return child.kind.is_dir();
1020            }
1021        };
1022        false
1023    }
1024
1025    fn is_foldable(&self, entry: &Entry, worktree: &Worktree) -> bool {
1026        if entry.is_dir() {
1027            let snapshot = worktree.snapshot();
1028
1029            let mut child_entries = snapshot.child_entries(&entry.path);
1030            if let Some(child) = child_entries.next()
1031                && child_entries.next().is_none()
1032            {
1033                return child.kind.is_dir();
1034            }
1035        }
1036        false
1037    }
1038
1039    fn expand_selected_entry(
1040        &mut self,
1041        _: &ExpandSelectedEntry,
1042        window: &mut Window,
1043        cx: &mut Context<Self>,
1044    ) {
1045        if let Some((worktree, entry)) = self.selected_entry(cx) {
1046            if let Some(folded_ancestors) = self.ancestors.get_mut(&entry.id)
1047                && folded_ancestors.current_ancestor_depth > 0
1048            {
1049                folded_ancestors.current_ancestor_depth -= 1;
1050                cx.notify();
1051                return;
1052            }
1053            if entry.is_dir() {
1054                let worktree_id = worktree.id();
1055                let entry_id = entry.id;
1056                let expanded_dir_ids =
1057                    if let Some(expanded_dir_ids) = self.expanded_dir_ids.get_mut(&worktree_id) {
1058                        expanded_dir_ids
1059                    } else {
1060                        return;
1061                    };
1062
1063                match expanded_dir_ids.binary_search(&entry_id) {
1064                    Ok(_) => self.select_next(&SelectNext, window, cx),
1065                    Err(ix) => {
1066                        self.project.update(cx, |project, cx| {
1067                            project.expand_entry(worktree_id, entry_id, cx);
1068                        });
1069
1070                        expanded_dir_ids.insert(ix, entry_id);
1071                        self.update_visible_entries(None, cx);
1072                        cx.notify();
1073                    }
1074                }
1075            }
1076        }
1077    }
1078
1079    fn collapse_selected_entry(
1080        &mut self,
1081        _: &CollapseSelectedEntry,
1082        _: &mut Window,
1083        cx: &mut Context<Self>,
1084    ) {
1085        let Some((worktree, entry)) = self.selected_entry_handle(cx) else {
1086            return;
1087        };
1088        self.collapse_entry(entry.clone(), worktree, cx)
1089    }
1090
1091    fn collapse_entry(&mut self, entry: Entry, worktree: Entity<Worktree>, cx: &mut Context<Self>) {
1092        let worktree = worktree.read(cx);
1093        if let Some(folded_ancestors) = self.ancestors.get_mut(&entry.id)
1094            && folded_ancestors.current_ancestor_depth + 1 < folded_ancestors.max_ancestor_depth()
1095        {
1096            folded_ancestors.current_ancestor_depth += 1;
1097            cx.notify();
1098            return;
1099        }
1100        let worktree_id = worktree.id();
1101        let expanded_dir_ids =
1102            if let Some(expanded_dir_ids) = self.expanded_dir_ids.get_mut(&worktree_id) {
1103                expanded_dir_ids
1104            } else {
1105                return;
1106            };
1107
1108        let mut entry = &entry;
1109        loop {
1110            let entry_id = entry.id;
1111            match expanded_dir_ids.binary_search(&entry_id) {
1112                Ok(ix) => {
1113                    expanded_dir_ids.remove(ix);
1114                    self.update_visible_entries(Some((worktree_id, entry_id)), cx);
1115                    cx.notify();
1116                    break;
1117                }
1118                Err(_) => {
1119                    if let Some(parent_entry) =
1120                        entry.path.parent().and_then(|p| worktree.entry_for_path(p))
1121                    {
1122                        entry = parent_entry;
1123                    } else {
1124                        break;
1125                    }
1126                }
1127            }
1128        }
1129    }
1130
1131    pub fn collapse_all_entries(
1132        &mut self,
1133        _: &CollapseAllEntries,
1134        _: &mut Window,
1135        cx: &mut Context<Self>,
1136    ) {
1137        // By keeping entries for fully collapsed worktrees, we avoid expanding them within update_visible_entries
1138        // (which is it's default behavior when there's no entry for a worktree in expanded_dir_ids).
1139        self.expanded_dir_ids
1140            .retain(|_, expanded_entries| expanded_entries.is_empty());
1141        self.update_visible_entries(None, cx);
1142        cx.notify();
1143    }
1144
1145    fn toggle_expanded(
1146        &mut self,
1147        entry_id: ProjectEntryId,
1148        window: &mut Window,
1149        cx: &mut Context<Self>,
1150    ) {
1151        if let Some(worktree_id) = self.project.read(cx).worktree_id_for_entry(entry_id, cx)
1152            && let Some(expanded_dir_ids) = self.expanded_dir_ids.get_mut(&worktree_id)
1153        {
1154            self.project.update(cx, |project, cx| {
1155                match expanded_dir_ids.binary_search(&entry_id) {
1156                    Ok(ix) => {
1157                        expanded_dir_ids.remove(ix);
1158                    }
1159                    Err(ix) => {
1160                        project.expand_entry(worktree_id, entry_id, cx);
1161                        expanded_dir_ids.insert(ix, entry_id);
1162                    }
1163                }
1164            });
1165            self.update_visible_entries(Some((worktree_id, entry_id)), cx);
1166            window.focus(&self.focus_handle);
1167            cx.notify();
1168        }
1169    }
1170
1171    fn toggle_expand_all(
1172        &mut self,
1173        entry_id: ProjectEntryId,
1174        window: &mut Window,
1175        cx: &mut Context<Self>,
1176    ) {
1177        if let Some(worktree_id) = self.project.read(cx).worktree_id_for_entry(entry_id, cx)
1178            && let Some(expanded_dir_ids) = self.expanded_dir_ids.get_mut(&worktree_id)
1179        {
1180            match expanded_dir_ids.binary_search(&entry_id) {
1181                Ok(_ix) => {
1182                    self.collapse_all_for_entry(worktree_id, entry_id, cx);
1183                }
1184                Err(_ix) => {
1185                    self.expand_all_for_entry(worktree_id, entry_id, cx);
1186                }
1187            }
1188            self.update_visible_entries(Some((worktree_id, entry_id)), cx);
1189            window.focus(&self.focus_handle);
1190            cx.notify();
1191        }
1192    }
1193
1194    fn expand_all_for_entry(
1195        &mut self,
1196        worktree_id: WorktreeId,
1197        entry_id: ProjectEntryId,
1198        cx: &mut Context<Self>,
1199    ) {
1200        self.project.update(cx, |project, cx| {
1201            if let Some((worktree, expanded_dir_ids)) = project
1202                .worktree_for_id(worktree_id, cx)
1203                .zip(self.expanded_dir_ids.get_mut(&worktree_id))
1204            {
1205                if let Some(task) = project.expand_all_for_entry(worktree_id, entry_id, cx) {
1206                    task.detach();
1207                }
1208
1209                let worktree = worktree.read(cx);
1210
1211                if let Some(mut entry) = worktree.entry_for_id(entry_id) {
1212                    loop {
1213                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
1214                            expanded_dir_ids.insert(ix, entry.id);
1215                        }
1216
1217                        if let Some(parent_entry) =
1218                            entry.path.parent().and_then(|p| worktree.entry_for_path(p))
1219                        {
1220                            entry = parent_entry;
1221                        } else {
1222                            break;
1223                        }
1224                    }
1225                }
1226            }
1227        });
1228    }
1229
1230    fn collapse_all_for_entry(
1231        &mut self,
1232        worktree_id: WorktreeId,
1233        entry_id: ProjectEntryId,
1234        cx: &mut Context<Self>,
1235    ) {
1236        self.project.update(cx, |project, cx| {
1237            if let Some((worktree, expanded_dir_ids)) = project
1238                .worktree_for_id(worktree_id, cx)
1239                .zip(self.expanded_dir_ids.get_mut(&worktree_id))
1240            {
1241                let worktree = worktree.read(cx);
1242                let mut dirs_to_collapse = vec![entry_id];
1243                let auto_fold_enabled = ProjectPanelSettings::get_global(cx).auto_fold_dirs;
1244                while let Some(current_id) = dirs_to_collapse.pop() {
1245                    let Some(current_entry) = worktree.entry_for_id(current_id) else {
1246                        continue;
1247                    };
1248                    if let Ok(ix) = expanded_dir_ids.binary_search(&current_id) {
1249                        expanded_dir_ids.remove(ix);
1250                    }
1251                    if auto_fold_enabled {
1252                        self.unfolded_dir_ids.remove(&current_id);
1253                    }
1254                    for child in worktree.child_entries(&current_entry.path) {
1255                        if child.is_dir() {
1256                            dirs_to_collapse.push(child.id);
1257                        }
1258                    }
1259                }
1260            }
1261        });
1262    }
1263
1264    fn select_previous(&mut self, _: &SelectPrevious, window: &mut Window, cx: &mut Context<Self>) {
1265        if let Some(edit_state) = &self.edit_state
1266            && edit_state.processing_filename.is_none()
1267        {
1268            self.filename_editor.update(cx, |editor, cx| {
1269                editor.move_to_beginning_of_line(
1270                    &editor::actions::MoveToBeginningOfLine {
1271                        stop_at_soft_wraps: false,
1272                        stop_at_indent: false,
1273                    },
1274                    window,
1275                    cx,
1276                );
1277            });
1278            return;
1279        }
1280        if let Some(selection) = self.selection {
1281            let (mut worktree_ix, mut entry_ix, _) =
1282                self.index_for_selection(selection).unwrap_or_default();
1283            if entry_ix > 0 {
1284                entry_ix -= 1;
1285            } else if worktree_ix > 0 {
1286                worktree_ix -= 1;
1287                entry_ix = self.visible_entries[worktree_ix].entries.len() - 1;
1288            } else {
1289                return;
1290            }
1291
1292            let VisibleEntriesForWorktree {
1293                worktree_id,
1294                entries,
1295                ..
1296            } = &self.visible_entries[worktree_ix];
1297            let selection = SelectedEntry {
1298                worktree_id: *worktree_id,
1299                entry_id: entries[entry_ix].id,
1300            };
1301            self.selection = Some(selection);
1302            if window.modifiers().shift {
1303                self.marked_entries.push(selection);
1304            }
1305            self.autoscroll(cx);
1306            cx.notify();
1307        } else {
1308            self.select_first(&SelectFirst {}, window, cx);
1309        }
1310    }
1311
1312    fn confirm(&mut self, _: &Confirm, window: &mut Window, cx: &mut Context<Self>) {
1313        if let Some(task) = self.confirm_edit(window, cx) {
1314            task.detach_and_notify_err(window, cx);
1315        }
1316    }
1317
1318    fn open(&mut self, _: &Open, window: &mut Window, cx: &mut Context<Self>) {
1319        let preview_tabs_enabled = PreviewTabsSettings::get_global(cx).enabled;
1320        self.open_internal(true, !preview_tabs_enabled, None, window, cx);
1321    }
1322
1323    fn open_permanent(&mut self, _: &OpenPermanent, window: &mut Window, cx: &mut Context<Self>) {
1324        self.open_internal(false, true, None, window, cx);
1325    }
1326
1327    fn open_split_vertical(
1328        &mut self,
1329        _: &OpenSplitVertical,
1330        window: &mut Window,
1331        cx: &mut Context<Self>,
1332    ) {
1333        self.open_internal(false, true, Some(SplitDirection::vertical(cx)), window, cx);
1334    }
1335
1336    fn open_split_horizontal(
1337        &mut self,
1338        _: &OpenSplitHorizontal,
1339        window: &mut Window,
1340        cx: &mut Context<Self>,
1341    ) {
1342        self.open_internal(
1343            false,
1344            true,
1345            Some(SplitDirection::horizontal(cx)),
1346            window,
1347            cx,
1348        );
1349    }
1350
1351    fn open_internal(
1352        &mut self,
1353        allow_preview: bool,
1354        focus_opened_item: bool,
1355        split_direction: Option<SplitDirection>,
1356        window: &mut Window,
1357        cx: &mut Context<Self>,
1358    ) {
1359        if let Some((_, entry)) = self.selected_entry(cx) {
1360            if entry.is_file() {
1361                if split_direction.is_some() {
1362                    self.split_entry(entry.id, allow_preview, split_direction, cx);
1363                } else {
1364                    self.open_entry(entry.id, focus_opened_item, allow_preview, cx);
1365                }
1366                cx.notify();
1367            } else {
1368                self.toggle_expanded(entry.id, window, cx);
1369            }
1370        }
1371    }
1372
1373    fn populate_validation_error(&mut self, cx: &mut Context<Self>) {
1374        let edit_state = match self.edit_state.as_mut() {
1375            Some(state) => state,
1376            None => return,
1377        };
1378        let filename = self.filename_editor.read(cx).text(cx);
1379        if !filename.is_empty() {
1380            if let Some(worktree) = self
1381                .project
1382                .read(cx)
1383                .worktree_for_id(edit_state.worktree_id, cx)
1384                && let Some(entry) = worktree.read(cx).entry_for_id(edit_state.entry_id)
1385            {
1386                let mut already_exists = false;
1387                if edit_state.is_new_entry() {
1388                    let new_path = entry.path.join(filename.trim_start_matches('/'));
1389                    if worktree
1390                        .read(cx)
1391                        .entry_for_path(new_path.as_path())
1392                        .is_some()
1393                    {
1394                        already_exists = true;
1395                    }
1396                } else {
1397                    let new_path = if let Some(parent) = entry.path.clone().parent() {
1398                        parent.join(&filename)
1399                    } else {
1400                        filename.clone().into()
1401                    };
1402                    if let Some(existing) = worktree.read(cx).entry_for_path(new_path.as_path())
1403                        && existing.id != entry.id
1404                    {
1405                        already_exists = true;
1406                    }
1407                };
1408                if already_exists {
1409                    edit_state.validation_state = ValidationState::Error(format!(
1410                        "File or directory '{}' already exists at location. Please choose a different name.",
1411                        filename
1412                    ));
1413                    cx.notify();
1414                    return;
1415                }
1416            }
1417            let trimmed_filename = filename.trim();
1418            if trimmed_filename.is_empty() {
1419                edit_state.validation_state =
1420                    ValidationState::Error("File or directory name cannot be empty.".to_string());
1421                cx.notify();
1422                return;
1423            }
1424            if trimmed_filename != filename {
1425                edit_state.validation_state = ValidationState::Warning(
1426                    "File or directory name contains leading or trailing whitespace.".to_string(),
1427                );
1428                cx.notify();
1429                return;
1430            }
1431        }
1432        edit_state.validation_state = ValidationState::None;
1433        cx.notify();
1434    }
1435
1436    fn confirm_edit(
1437        &mut self,
1438        window: &mut Window,
1439        cx: &mut Context<Self>,
1440    ) -> Option<Task<Result<()>>> {
1441        let edit_state = self.edit_state.as_mut()?;
1442        let worktree_id = edit_state.worktree_id;
1443        let is_new_entry = edit_state.is_new_entry();
1444        let filename = self.filename_editor.read(cx).text(cx);
1445        if filename.trim().is_empty() {
1446            return None;
1447        }
1448        #[cfg(not(target_os = "windows"))]
1449        let filename_indicates_dir = filename.ends_with("/");
1450        // On Windows, path separator could be either `/` or `\`.
1451        #[cfg(target_os = "windows")]
1452        let filename_indicates_dir = filename.ends_with("/") || filename.ends_with("\\");
1453        edit_state.is_dir =
1454            edit_state.is_dir || (edit_state.is_new_entry() && filename_indicates_dir);
1455        let is_dir = edit_state.is_dir;
1456        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
1457        let entry = worktree.read(cx).entry_for_id(edit_state.entry_id)?.clone();
1458
1459        let edit_task;
1460        let edited_entry_id;
1461        if is_new_entry {
1462            self.selection = Some(SelectedEntry {
1463                worktree_id,
1464                entry_id: NEW_ENTRY_ID,
1465            });
1466            let new_path = entry.path.join(filename.trim_start_matches('/'));
1467            if worktree
1468                .read(cx)
1469                .entry_for_path(new_path.as_path())
1470                .is_some()
1471            {
1472                return None;
1473            }
1474
1475            edited_entry_id = NEW_ENTRY_ID;
1476            edit_task = self.project.update(cx, |project, cx| {
1477                project.create_entry((worktree_id, &new_path), is_dir, cx)
1478            });
1479        } else {
1480            let new_path = if let Some(parent) = entry.path.clone().parent() {
1481                parent.join(&filename)
1482            } else {
1483                filename.clone().into()
1484            };
1485            if let Some(existing) = worktree.read(cx).entry_for_path(new_path.as_path()) {
1486                if existing.id == entry.id {
1487                    window.focus(&self.focus_handle);
1488                }
1489                return None;
1490            }
1491            edited_entry_id = entry.id;
1492            edit_task = self.project.update(cx, |project, cx| {
1493                project.rename_entry(entry.id, new_path.as_path(), cx)
1494            });
1495        };
1496
1497        window.focus(&self.focus_handle);
1498        edit_state.processing_filename = Some(filename);
1499        cx.notify();
1500
1501        Some(cx.spawn_in(window, async move |project_panel, cx| {
1502            let new_entry = edit_task.await;
1503            project_panel.update(cx, |project_panel, cx| {
1504                project_panel.edit_state = None;
1505                cx.notify();
1506            })?;
1507
1508            match new_entry {
1509                Err(e) => {
1510                    project_panel.update( cx, |project_panel, cx| {
1511                        project_panel.marked_entries.clear();
1512                        project_panel.update_visible_entries(None,  cx);
1513                    }).ok();
1514                    Err(e)?;
1515                }
1516                Ok(CreatedEntry::Included(new_entry)) => {
1517                    project_panel.update( cx, |project_panel, cx| {
1518                        if let Some(selection) = &mut project_panel.selection
1519                            && selection.entry_id == edited_entry_id {
1520                                selection.worktree_id = worktree_id;
1521                                selection.entry_id = new_entry.id;
1522                                project_panel.marked_entries.clear();
1523                                project_panel.expand_to_selection(cx);
1524                            }
1525                        project_panel.update_visible_entries(None, cx);
1526                        if is_new_entry && !is_dir {
1527                            project_panel.open_entry(new_entry.id, true, false, cx);
1528                        }
1529                        cx.notify();
1530                    })?;
1531                }
1532                Ok(CreatedEntry::Excluded { abs_path }) => {
1533                    if let Some(open_task) = project_panel
1534                        .update_in( cx, |project_panel, window, cx| {
1535                            project_panel.marked_entries.clear();
1536                            project_panel.update_visible_entries(None,  cx);
1537
1538                            if is_dir {
1539                                project_panel.project.update(cx, |_, cx| {
1540                                    cx.emit(project::Event::Toast {
1541                                        notification_id: "excluded-directory".into(),
1542                                        message: format!("Created an excluded directory at {abs_path:?}.\nAlter `file_scan_exclusions` in the settings to show it in the panel")
1543                                    })
1544                                });
1545                                None
1546                            } else {
1547                                project_panel
1548                                    .workspace
1549                                    .update(cx, |workspace, cx| {
1550                                        workspace.open_abs_path(abs_path, OpenOptions { visible: Some(OpenVisible::All), ..Default::default() }, window, cx)
1551                                    })
1552                                    .ok()
1553                            }
1554                        })
1555                        .ok()
1556                        .flatten()
1557                    {
1558                        let _ = open_task.await?;
1559                    }
1560                }
1561            }
1562            Ok(())
1563        }))
1564    }
1565
1566    fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
1567        if cx.stop_active_drag(window) {
1568            self.drag_target_entry.take();
1569            self.hover_expand_task.take();
1570            return;
1571        }
1572
1573        let previous_edit_state = self.edit_state.take();
1574        self.update_visible_entries(None, cx);
1575        self.marked_entries.clear();
1576
1577        if let Some(previously_focused) =
1578            previous_edit_state.and_then(|edit_state| edit_state.previously_focused)
1579        {
1580            self.selection = Some(previously_focused);
1581            self.autoscroll(cx);
1582        }
1583
1584        window.focus(&self.focus_handle);
1585        cx.notify();
1586    }
1587
1588    fn open_entry(
1589        &mut self,
1590        entry_id: ProjectEntryId,
1591        focus_opened_item: bool,
1592        allow_preview: bool,
1593
1594        cx: &mut Context<Self>,
1595    ) {
1596        cx.emit(Event::OpenedEntry {
1597            entry_id,
1598            focus_opened_item,
1599            allow_preview,
1600        });
1601    }
1602
1603    fn split_entry(
1604        &mut self,
1605        entry_id: ProjectEntryId,
1606        allow_preview: bool,
1607        split_direction: Option<SplitDirection>,
1608
1609        cx: &mut Context<Self>,
1610    ) {
1611        cx.emit(Event::SplitEntry {
1612            entry_id,
1613            allow_preview,
1614            split_direction,
1615        });
1616    }
1617
1618    fn new_file(&mut self, _: &NewFile, window: &mut Window, cx: &mut Context<Self>) {
1619        self.add_entry(false, window, cx)
1620    }
1621
1622    fn new_directory(&mut self, _: &NewDirectory, window: &mut Window, cx: &mut Context<Self>) {
1623        self.add_entry(true, window, cx)
1624    }
1625
1626    fn add_entry(&mut self, is_dir: bool, window: &mut Window, cx: &mut Context<Self>) {
1627        let Some((worktree_id, entry_id)) = self
1628            .selection
1629            .map(|entry| (entry.worktree_id, entry.entry_id))
1630            .or_else(|| {
1631                let entry_id = self.last_worktree_root_id?;
1632                let worktree_id = self
1633                    .project
1634                    .read(cx)
1635                    .worktree_for_entry(entry_id, cx)?
1636                    .read(cx)
1637                    .id();
1638
1639                self.selection = Some(SelectedEntry {
1640                    worktree_id,
1641                    entry_id,
1642                });
1643
1644                Some((worktree_id, entry_id))
1645            })
1646        else {
1647            return;
1648        };
1649
1650        let directory_id;
1651        let new_entry_id = self.resolve_entry(entry_id);
1652        if let Some((worktree, expanded_dir_ids)) = self
1653            .project
1654            .read(cx)
1655            .worktree_for_id(worktree_id, cx)
1656            .zip(self.expanded_dir_ids.get_mut(&worktree_id))
1657        {
1658            let worktree = worktree.read(cx);
1659            if let Some(mut entry) = worktree.entry_for_id(new_entry_id) {
1660                loop {
1661                    if entry.is_dir() {
1662                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
1663                            expanded_dir_ids.insert(ix, entry.id);
1664                        }
1665                        directory_id = entry.id;
1666                        break;
1667                    } else {
1668                        if let Some(parent_path) = entry.path.parent()
1669                            && let Some(parent_entry) = worktree.entry_for_path(parent_path)
1670                        {
1671                            entry = parent_entry;
1672                            continue;
1673                        }
1674                        return;
1675                    }
1676                }
1677            } else {
1678                return;
1679            };
1680        } else {
1681            return;
1682        };
1683
1684        self.marked_entries.clear();
1685        self.edit_state = Some(EditState {
1686            worktree_id,
1687            entry_id: directory_id,
1688            leaf_entry_id: None,
1689            is_dir,
1690            processing_filename: None,
1691            previously_focused: self.selection,
1692            depth: 0,
1693            validation_state: ValidationState::None,
1694        });
1695        self.filename_editor.update(cx, |editor, cx| {
1696            editor.clear(window, cx);
1697            window.focus(&editor.focus_handle(cx));
1698        });
1699        self.update_visible_entries(Some((worktree_id, NEW_ENTRY_ID)), cx);
1700        self.autoscroll(cx);
1701        cx.notify();
1702    }
1703
1704    fn unflatten_entry_id(&self, leaf_entry_id: ProjectEntryId) -> ProjectEntryId {
1705        if let Some(ancestors) = self.ancestors.get(&leaf_entry_id) {
1706            ancestors
1707                .ancestors
1708                .get(ancestors.current_ancestor_depth)
1709                .copied()
1710                .unwrap_or(leaf_entry_id)
1711        } else {
1712            leaf_entry_id
1713        }
1714    }
1715
1716    fn rename_impl(
1717        &mut self,
1718        selection: Option<Range<usize>>,
1719        window: &mut Window,
1720        cx: &mut Context<Self>,
1721    ) {
1722        if let Some(SelectedEntry {
1723            worktree_id,
1724            entry_id,
1725        }) = self.selection
1726            && let Some(worktree) = self.project.read(cx).worktree_for_id(worktree_id, cx)
1727        {
1728            let sub_entry_id = self.unflatten_entry_id(entry_id);
1729            if let Some(entry) = worktree.read(cx).entry_for_id(sub_entry_id) {
1730                #[cfg(target_os = "windows")]
1731                if Some(entry) == worktree.read(cx).root_entry() {
1732                    return;
1733                }
1734
1735                if Some(entry) == worktree.read(cx).root_entry() {
1736                    let settings = ProjectPanelSettings::get_global(cx);
1737                    let visible_worktrees_count =
1738                        self.project.read(cx).visible_worktrees(cx).count();
1739                    if settings.hide_root && visible_worktrees_count == 1 {
1740                        return;
1741                    }
1742                }
1743
1744                self.edit_state = Some(EditState {
1745                    worktree_id,
1746                    entry_id: sub_entry_id,
1747                    leaf_entry_id: Some(entry_id),
1748                    is_dir: entry.is_dir(),
1749                    processing_filename: None,
1750                    previously_focused: None,
1751                    depth: 0,
1752                    validation_state: ValidationState::None,
1753                });
1754                let file_name = entry
1755                    .path
1756                    .file_name()
1757                    .map(|s| s.to_string_lossy())
1758                    .unwrap_or_default()
1759                    .to_string();
1760                let selection = selection.unwrap_or_else(|| {
1761                    let file_stem = entry.path.file_stem().map(|s| s.to_string_lossy());
1762                    let selection_end =
1763                        file_stem.map_or(file_name.len(), |file_stem| file_stem.len());
1764                    0..selection_end
1765                });
1766                self.filename_editor.update(cx, |editor, cx| {
1767                    editor.set_text(file_name, window, cx);
1768                    editor.change_selections(Default::default(), window, cx, |s| {
1769                        s.select_ranges([selection])
1770                    });
1771                    window.focus(&editor.focus_handle(cx));
1772                });
1773                self.update_visible_entries(None, cx);
1774                self.autoscroll(cx);
1775                cx.notify();
1776            }
1777        }
1778    }
1779
1780    fn rename(&mut self, _: &Rename, window: &mut Window, cx: &mut Context<Self>) {
1781        self.rename_impl(None, window, cx);
1782    }
1783
1784    fn trash(&mut self, action: &Trash, window: &mut Window, cx: &mut Context<Self>) {
1785        self.remove(true, action.skip_prompt, window, cx);
1786    }
1787
1788    fn delete(&mut self, action: &Delete, window: &mut Window, cx: &mut Context<Self>) {
1789        self.remove(false, action.skip_prompt, window, cx);
1790    }
1791
1792    fn remove(
1793        &mut self,
1794        trash: bool,
1795        skip_prompt: bool,
1796        window: &mut Window,
1797        cx: &mut Context<ProjectPanel>,
1798    ) {
1799        maybe!({
1800            let items_to_delete = self.disjoint_entries(cx);
1801            if items_to_delete.is_empty() {
1802                return None;
1803            }
1804            let project = self.project.read(cx);
1805
1806            let mut dirty_buffers = 0;
1807            let file_paths = items_to_delete
1808                .iter()
1809                .filter_map(|selection| {
1810                    let project_path = project.path_for_entry(selection.entry_id, cx)?;
1811                    dirty_buffers +=
1812                        project.dirty_buffers(cx).any(|path| path == project_path) as usize;
1813                    Some((
1814                        selection.entry_id,
1815                        project_path
1816                            .path
1817                            .file_name()?
1818                            .to_string_lossy()
1819                            .into_owned(),
1820                    ))
1821                })
1822                .collect::<Vec<_>>();
1823            if file_paths.is_empty() {
1824                return None;
1825            }
1826            let answer = if !skip_prompt {
1827                let operation = if trash { "Trash" } else { "Delete" };
1828                let prompt = match file_paths.first() {
1829                    Some((_, path)) if file_paths.len() == 1 => {
1830                        let unsaved_warning = if dirty_buffers > 0 {
1831                            "\n\nIt has unsaved changes, which will be lost."
1832                        } else {
1833                            ""
1834                        };
1835
1836                        format!("{operation} {path}?{unsaved_warning}")
1837                    }
1838                    _ => {
1839                        const CUTOFF_POINT: usize = 10;
1840                        let names = if file_paths.len() > CUTOFF_POINT {
1841                            let truncated_path_counts = file_paths.len() - CUTOFF_POINT;
1842                            let mut paths = file_paths
1843                                .iter()
1844                                .map(|(_, path)| path.clone())
1845                                .take(CUTOFF_POINT)
1846                                .collect::<Vec<_>>();
1847                            paths.truncate(CUTOFF_POINT);
1848                            if truncated_path_counts == 1 {
1849                                paths.push(".. 1 file not shown".into());
1850                            } else {
1851                                paths.push(format!(".. {} files not shown", truncated_path_counts));
1852                            }
1853                            paths
1854                        } else {
1855                            file_paths.iter().map(|(_, path)| path.clone()).collect()
1856                        };
1857                        let unsaved_warning = if dirty_buffers == 0 {
1858                            String::new()
1859                        } else if dirty_buffers == 1 {
1860                            "\n\n1 of these has unsaved changes, which will be lost.".to_string()
1861                        } else {
1862                            format!(
1863                                "\n\n{dirty_buffers} of these have unsaved changes, which will be lost."
1864                            )
1865                        };
1866
1867                        format!(
1868                            "Do you want to {} the following {} files?\n{}{unsaved_warning}",
1869                            operation.to_lowercase(),
1870                            file_paths.len(),
1871                            names.join("\n")
1872                        )
1873                    }
1874                };
1875                Some(window.prompt(PromptLevel::Info, &prompt, None, &[operation, "Cancel"], cx))
1876            } else {
1877                None
1878            };
1879            let next_selection = self.find_next_selection_after_deletion(items_to_delete, cx);
1880            cx.spawn_in(window, async move |panel, cx| {
1881                if let Some(answer) = answer
1882                    && answer.await != Ok(0)
1883                {
1884                    return anyhow::Ok(());
1885                }
1886                for (entry_id, _) in file_paths {
1887                    panel
1888                        .update(cx, |panel, cx| {
1889                            panel
1890                                .project
1891                                .update(cx, |project, cx| project.delete_entry(entry_id, trash, cx))
1892                                .context("no such entry")
1893                        })??
1894                        .await?;
1895                }
1896                panel.update_in(cx, |panel, window, cx| {
1897                    if let Some(next_selection) = next_selection {
1898                        panel.selection = Some(next_selection);
1899                        panel.autoscroll(cx);
1900                    } else {
1901                        panel.select_last(&SelectLast {}, window, cx);
1902                    }
1903                })?;
1904                Ok(())
1905            })
1906            .detach_and_log_err(cx);
1907            Some(())
1908        });
1909    }
1910
1911    fn find_next_selection_after_deletion(
1912        &self,
1913        sanitized_entries: BTreeSet<SelectedEntry>,
1914        cx: &mut Context<Self>,
1915    ) -> Option<SelectedEntry> {
1916        if sanitized_entries.is_empty() {
1917            return None;
1918        }
1919        let project = self.project.read(cx);
1920        let (worktree_id, worktree) = sanitized_entries
1921            .iter()
1922            .map(|entry| entry.worktree_id)
1923            .filter_map(|id| project.worktree_for_id(id, cx).map(|w| (id, w.read(cx))))
1924            .max_by(|(_, a), (_, b)| a.root_name().cmp(b.root_name()))?;
1925        let git_store = project.git_store().read(cx);
1926
1927        let marked_entries_in_worktree = sanitized_entries
1928            .iter()
1929            .filter(|e| e.worktree_id == worktree_id)
1930            .collect::<HashSet<_>>();
1931        let latest_entry = marked_entries_in_worktree
1932            .iter()
1933            .max_by(|a, b| {
1934                match (
1935                    worktree.entry_for_id(a.entry_id),
1936                    worktree.entry_for_id(b.entry_id),
1937                ) {
1938                    (Some(a), Some(b)) => {
1939                        compare_paths((&a.path, a.is_file()), (&b.path, b.is_file()))
1940                    }
1941                    _ => cmp::Ordering::Equal,
1942                }
1943            })
1944            .and_then(|e| worktree.entry_for_id(e.entry_id))?;
1945
1946        let parent_path = latest_entry.path.parent()?;
1947        let parent_entry = worktree.entry_for_path(parent_path)?;
1948
1949        // Remove all siblings that are being deleted except the last marked entry
1950        let repo_snapshots = git_store.repo_snapshots(cx);
1951        let worktree_snapshot = worktree.snapshot();
1952        let hide_gitignore = ProjectPanelSettings::get_global(cx).hide_gitignore;
1953        let mut siblings: Vec<_> =
1954            ChildEntriesGitIter::new(&repo_snapshots, &worktree_snapshot, parent_path)
1955                .filter(|sibling| {
1956                    (sibling.id == latest_entry.id)
1957                        || (!marked_entries_in_worktree.contains(&&SelectedEntry {
1958                            worktree_id,
1959                            entry_id: sibling.id,
1960                        }) && (!hide_gitignore || !sibling.is_ignored))
1961                })
1962                .map(|entry| entry.to_owned())
1963                .collect();
1964
1965        project::sort_worktree_entries(&mut siblings);
1966        let sibling_entry_index = siblings
1967            .iter()
1968            .position(|sibling| sibling.id == latest_entry.id)?;
1969
1970        if let Some(next_sibling) = sibling_entry_index
1971            .checked_add(1)
1972            .and_then(|i| siblings.get(i))
1973        {
1974            return Some(SelectedEntry {
1975                worktree_id,
1976                entry_id: next_sibling.id,
1977            });
1978        }
1979        if let Some(prev_sibling) = sibling_entry_index
1980            .checked_sub(1)
1981            .and_then(|i| siblings.get(i))
1982        {
1983            return Some(SelectedEntry {
1984                worktree_id,
1985                entry_id: prev_sibling.id,
1986            });
1987        }
1988        // No neighbour sibling found, fall back to parent
1989        Some(SelectedEntry {
1990            worktree_id,
1991            entry_id: parent_entry.id,
1992        })
1993    }
1994
1995    fn unfold_directory(&mut self, _: &UnfoldDirectory, _: &mut Window, cx: &mut Context<Self>) {
1996        if let Some((worktree, entry)) = self.selected_entry(cx) {
1997            self.unfolded_dir_ids.insert(entry.id);
1998
1999            let snapshot = worktree.snapshot();
2000            let mut parent_path = entry.path.parent();
2001            while let Some(path) = parent_path {
2002                if let Some(parent_entry) = worktree.entry_for_path(path) {
2003                    let mut children_iter = snapshot.child_entries(path);
2004
2005                    if children_iter.by_ref().take(2).count() > 1 {
2006                        break;
2007                    }
2008
2009                    self.unfolded_dir_ids.insert(parent_entry.id);
2010                    parent_path = path.parent();
2011                } else {
2012                    break;
2013                }
2014            }
2015
2016            self.update_visible_entries(None, cx);
2017            self.autoscroll(cx);
2018            cx.notify();
2019        }
2020    }
2021
2022    fn fold_directory(&mut self, _: &FoldDirectory, _: &mut Window, cx: &mut Context<Self>) {
2023        if let Some((worktree, entry)) = self.selected_entry(cx) {
2024            self.unfolded_dir_ids.remove(&entry.id);
2025
2026            let snapshot = worktree.snapshot();
2027            let mut path = &*entry.path;
2028            loop {
2029                let mut child_entries_iter = snapshot.child_entries(path);
2030                if let Some(child) = child_entries_iter.next() {
2031                    if child_entries_iter.next().is_none() && child.is_dir() {
2032                        self.unfolded_dir_ids.remove(&child.id);
2033                        path = &*child.path;
2034                    } else {
2035                        break;
2036                    }
2037                } else {
2038                    break;
2039                }
2040            }
2041
2042            self.update_visible_entries(None, cx);
2043            self.autoscroll(cx);
2044            cx.notify();
2045        }
2046    }
2047
2048    fn select_next(&mut self, _: &SelectNext, window: &mut Window, cx: &mut Context<Self>) {
2049        if let Some(edit_state) = &self.edit_state
2050            && edit_state.processing_filename.is_none()
2051        {
2052            self.filename_editor.update(cx, |editor, cx| {
2053                editor.move_to_end_of_line(
2054                    &editor::actions::MoveToEndOfLine {
2055                        stop_at_soft_wraps: false,
2056                    },
2057                    window,
2058                    cx,
2059                );
2060            });
2061            return;
2062        }
2063        if let Some(selection) = self.selection {
2064            let (mut worktree_ix, mut entry_ix, _) =
2065                self.index_for_selection(selection).unwrap_or_default();
2066            if let Some(worktree_entries) =
2067                self.visible_entries.get(worktree_ix).map(|v| &v.entries)
2068            {
2069                if entry_ix + 1 < worktree_entries.len() {
2070                    entry_ix += 1;
2071                } else {
2072                    worktree_ix += 1;
2073                    entry_ix = 0;
2074                }
2075            }
2076
2077            if let Some(VisibleEntriesForWorktree {
2078                worktree_id,
2079                entries,
2080                ..
2081            }) = self.visible_entries.get(worktree_ix)
2082                && let Some(entry) = entries.get(entry_ix)
2083            {
2084                let selection = SelectedEntry {
2085                    worktree_id: *worktree_id,
2086                    entry_id: entry.id,
2087                };
2088                self.selection = Some(selection);
2089                if window.modifiers().shift {
2090                    self.marked_entries.push(selection);
2091                }
2092
2093                self.autoscroll(cx);
2094                cx.notify();
2095            }
2096        } else {
2097            self.select_first(&SelectFirst {}, window, cx);
2098        }
2099    }
2100
2101    fn select_prev_diagnostic(
2102        &mut self,
2103        action: &SelectPrevDiagnostic,
2104        _: &mut Window,
2105        cx: &mut Context<Self>,
2106    ) {
2107        let selection = self.find_entry(
2108            self.selection.as_ref(),
2109            true,
2110            |entry, worktree_id| {
2111                (self.selection.is_none()
2112                    || self.selection.is_some_and(|selection| {
2113                        if selection.worktree_id == worktree_id {
2114                            selection.entry_id != entry.id
2115                        } else {
2116                            true
2117                        }
2118                    }))
2119                    && entry.is_file()
2120                    && self
2121                        .diagnostics
2122                        .get(&(worktree_id, entry.path.to_path_buf()))
2123                        .is_some_and(|severity| action.severity.matches(*severity))
2124            },
2125            cx,
2126        );
2127
2128        if let Some(selection) = selection {
2129            self.selection = Some(selection);
2130            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2131            self.update_visible_entries(Some((selection.worktree_id, selection.entry_id)), cx);
2132            self.autoscroll(cx);
2133            cx.notify();
2134        }
2135    }
2136
2137    fn select_next_diagnostic(
2138        &mut self,
2139        action: &SelectNextDiagnostic,
2140        _: &mut Window,
2141        cx: &mut Context<Self>,
2142    ) {
2143        let selection = self.find_entry(
2144            self.selection.as_ref(),
2145            false,
2146            |entry, worktree_id| {
2147                (self.selection.is_none()
2148                    || self.selection.is_some_and(|selection| {
2149                        if selection.worktree_id == worktree_id {
2150                            selection.entry_id != entry.id
2151                        } else {
2152                            true
2153                        }
2154                    }))
2155                    && entry.is_file()
2156                    && self
2157                        .diagnostics
2158                        .get(&(worktree_id, entry.path.to_path_buf()))
2159                        .is_some_and(|severity| action.severity.matches(*severity))
2160            },
2161            cx,
2162        );
2163
2164        if let Some(selection) = selection {
2165            self.selection = Some(selection);
2166            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2167            self.update_visible_entries(Some((selection.worktree_id, selection.entry_id)), cx);
2168            self.autoscroll(cx);
2169            cx.notify();
2170        }
2171    }
2172
2173    fn select_prev_git_entry(
2174        &mut self,
2175        _: &SelectPrevGitEntry,
2176        _: &mut Window,
2177        cx: &mut Context<Self>,
2178    ) {
2179        let selection = self.find_entry(
2180            self.selection.as_ref(),
2181            true,
2182            |entry, worktree_id| {
2183                (self.selection.is_none()
2184                    || self.selection.is_some_and(|selection| {
2185                        if selection.worktree_id == worktree_id {
2186                            selection.entry_id != entry.id
2187                        } else {
2188                            true
2189                        }
2190                    }))
2191                    && entry.is_file()
2192                    && entry.git_summary.index.modified + entry.git_summary.worktree.modified > 0
2193            },
2194            cx,
2195        );
2196
2197        if let Some(selection) = selection {
2198            self.selection = Some(selection);
2199            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2200            self.update_visible_entries(Some((selection.worktree_id, selection.entry_id)), cx);
2201            self.autoscroll(cx);
2202            cx.notify();
2203        }
2204    }
2205
2206    fn select_prev_directory(
2207        &mut self,
2208        _: &SelectPrevDirectory,
2209        _: &mut Window,
2210        cx: &mut Context<Self>,
2211    ) {
2212        let selection = self.find_visible_entry(
2213            self.selection.as_ref(),
2214            true,
2215            |entry, worktree_id| {
2216                (self.selection.is_none()
2217                    || self.selection.is_some_and(|selection| {
2218                        if selection.worktree_id == worktree_id {
2219                            selection.entry_id != entry.id
2220                        } else {
2221                            true
2222                        }
2223                    }))
2224                    && entry.is_dir()
2225            },
2226            cx,
2227        );
2228
2229        if let Some(selection) = selection {
2230            self.selection = Some(selection);
2231            self.autoscroll(cx);
2232            cx.notify();
2233        }
2234    }
2235
2236    fn select_next_directory(
2237        &mut self,
2238        _: &SelectNextDirectory,
2239        _: &mut Window,
2240        cx: &mut Context<Self>,
2241    ) {
2242        let selection = self.find_visible_entry(
2243            self.selection.as_ref(),
2244            false,
2245            |entry, worktree_id| {
2246                (self.selection.is_none()
2247                    || self.selection.is_some_and(|selection| {
2248                        if selection.worktree_id == worktree_id {
2249                            selection.entry_id != entry.id
2250                        } else {
2251                            true
2252                        }
2253                    }))
2254                    && entry.is_dir()
2255            },
2256            cx,
2257        );
2258
2259        if let Some(selection) = selection {
2260            self.selection = Some(selection);
2261            self.autoscroll(cx);
2262            cx.notify();
2263        }
2264    }
2265
2266    fn select_next_git_entry(
2267        &mut self,
2268        _: &SelectNextGitEntry,
2269        _: &mut Window,
2270        cx: &mut Context<Self>,
2271    ) {
2272        let selection = self.find_entry(
2273            self.selection.as_ref(),
2274            false,
2275            |entry, worktree_id| {
2276                (self.selection.is_none()
2277                    || self.selection.is_some_and(|selection| {
2278                        if selection.worktree_id == worktree_id {
2279                            selection.entry_id != entry.id
2280                        } else {
2281                            true
2282                        }
2283                    }))
2284                    && entry.is_file()
2285                    && entry.git_summary.index.modified + entry.git_summary.worktree.modified > 0
2286            },
2287            cx,
2288        );
2289
2290        if let Some(selection) = selection {
2291            self.selection = Some(selection);
2292            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2293            self.update_visible_entries(Some((selection.worktree_id, selection.entry_id)), cx);
2294            self.autoscroll(cx);
2295            cx.notify();
2296        }
2297    }
2298
2299    fn select_parent(&mut self, _: &SelectParent, window: &mut Window, cx: &mut Context<Self>) {
2300        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2301            if let Some(parent) = entry.path.parent() {
2302                let worktree = worktree.read(cx);
2303                if let Some(parent_entry) = worktree.entry_for_path(parent) {
2304                    self.selection = Some(SelectedEntry {
2305                        worktree_id: worktree.id(),
2306                        entry_id: parent_entry.id,
2307                    });
2308                    self.autoscroll(cx);
2309                    cx.notify();
2310                }
2311            }
2312        } else {
2313            self.select_first(&SelectFirst {}, window, cx);
2314        }
2315    }
2316
2317    fn select_first(&mut self, _: &SelectFirst, window: &mut Window, cx: &mut Context<Self>) {
2318        if let Some(VisibleEntriesForWorktree {
2319            worktree_id,
2320            entries,
2321            ..
2322        }) = self.visible_entries.first()
2323            && let Some(entry) = entries.first()
2324        {
2325            let selection = SelectedEntry {
2326                worktree_id: *worktree_id,
2327                entry_id: entry.id,
2328            };
2329            self.selection = Some(selection);
2330            if window.modifiers().shift {
2331                self.marked_entries.push(selection);
2332            }
2333            self.autoscroll(cx);
2334            cx.notify();
2335        }
2336    }
2337
2338    fn select_last(&mut self, _: &SelectLast, _: &mut Window, cx: &mut Context<Self>) {
2339        if let Some(VisibleEntriesForWorktree {
2340            worktree_id,
2341            entries,
2342            ..
2343        }) = self.visible_entries.last()
2344        {
2345            let worktree = self.project.read(cx).worktree_for_id(*worktree_id, cx);
2346            if let (Some(worktree), Some(entry)) = (worktree, entries.last()) {
2347                let worktree = worktree.read(cx);
2348                if let Some(entry) = worktree.entry_for_id(entry.id) {
2349                    let selection = SelectedEntry {
2350                        worktree_id: *worktree_id,
2351                        entry_id: entry.id,
2352                    };
2353                    self.selection = Some(selection);
2354                    self.autoscroll(cx);
2355                    cx.notify();
2356                }
2357            }
2358        }
2359    }
2360
2361    fn autoscroll(&mut self, cx: &mut Context<Self>) {
2362        if let Some((_, _, index)) = self.selection.and_then(|s| self.index_for_selection(s)) {
2363            self.scroll_handle.scroll_to_item_with_offset(
2364                index,
2365                ScrollStrategy::Center,
2366                self.sticky_items_count,
2367            );
2368            cx.notify();
2369        }
2370    }
2371
2372    fn cut(&mut self, _: &Cut, _: &mut Window, cx: &mut Context<Self>) {
2373        let entries = self.disjoint_entries(cx);
2374        if !entries.is_empty() {
2375            self.clipboard = Some(ClipboardEntry::Cut(entries));
2376            cx.notify();
2377        }
2378    }
2379
2380    fn copy(&mut self, _: &Copy, _: &mut Window, cx: &mut Context<Self>) {
2381        let entries = self.disjoint_entries(cx);
2382        if !entries.is_empty() {
2383            self.clipboard = Some(ClipboardEntry::Copied(entries));
2384            cx.notify();
2385        }
2386    }
2387
2388    fn create_paste_path(
2389        &self,
2390        source: &SelectedEntry,
2391        (worktree, target_entry): (Entity<Worktree>, &Entry),
2392        cx: &App,
2393    ) -> Option<(PathBuf, Option<Range<usize>>)> {
2394        let mut new_path = target_entry.path.to_path_buf();
2395        // If we're pasting into a file, or a directory into itself, go up one level.
2396        if target_entry.is_file() || (target_entry.is_dir() && target_entry.id == source.entry_id) {
2397            new_path.pop();
2398        }
2399        let clipboard_entry_file_name = self
2400            .project
2401            .read(cx)
2402            .path_for_entry(source.entry_id, cx)?
2403            .path
2404            .file_name()?
2405            .to_os_string();
2406        new_path.push(&clipboard_entry_file_name);
2407        let extension = new_path.extension().map(|e| e.to_os_string());
2408        let file_name_without_extension = Path::new(&clipboard_entry_file_name).file_stem()?;
2409        let file_name_len = file_name_without_extension.to_string_lossy().len();
2410        let mut disambiguation_range = None;
2411        let mut ix = 0;
2412        {
2413            let worktree = worktree.read(cx);
2414            while worktree.entry_for_path(&new_path).is_some() {
2415                new_path.pop();
2416
2417                let mut new_file_name = file_name_without_extension.to_os_string();
2418
2419                let disambiguation = " copy";
2420                let mut disambiguation_len = disambiguation.len();
2421
2422                new_file_name.push(disambiguation);
2423
2424                if ix > 0 {
2425                    let extra_disambiguation = format!(" {}", ix);
2426                    disambiguation_len += extra_disambiguation.len();
2427
2428                    new_file_name.push(extra_disambiguation);
2429                }
2430                if let Some(extension) = extension.as_ref() {
2431                    new_file_name.push(".");
2432                    new_file_name.push(extension);
2433                }
2434
2435                new_path.push(new_file_name);
2436                disambiguation_range = Some(file_name_len..(file_name_len + disambiguation_len));
2437                ix += 1;
2438            }
2439        }
2440        Some((new_path, disambiguation_range))
2441    }
2442
2443    fn paste(&mut self, _: &Paste, window: &mut Window, cx: &mut Context<Self>) {
2444        maybe!({
2445            let (worktree, entry) = self.selected_entry_handle(cx)?;
2446            let entry = entry.clone();
2447            let worktree_id = worktree.read(cx).id();
2448            let clipboard_entries = self
2449                .clipboard
2450                .as_ref()
2451                .filter(|clipboard| !clipboard.items().is_empty())?;
2452            enum PasteTask {
2453                Rename(Task<Result<CreatedEntry>>),
2454                Copy(Task<Result<Option<Entry>>>),
2455            }
2456            let mut paste_entry_tasks: IndexMap<(ProjectEntryId, bool), PasteTask> =
2457                IndexMap::default();
2458            let mut disambiguation_range = None;
2459            let clip_is_cut = clipboard_entries.is_cut();
2460            for clipboard_entry in clipboard_entries.items() {
2461                let (new_path, new_disambiguation_range) =
2462                    self.create_paste_path(clipboard_entry, self.selected_sub_entry(cx)?, cx)?;
2463                let clip_entry_id = clipboard_entry.entry_id;
2464                let is_same_worktree = clipboard_entry.worktree_id == worktree_id;
2465                let relative_worktree_source_path = if !is_same_worktree {
2466                    let target_base_path = worktree.read(cx).abs_path();
2467                    let clipboard_project_path =
2468                        self.project.read(cx).path_for_entry(clip_entry_id, cx)?;
2469                    let clipboard_abs_path = self
2470                        .project
2471                        .read(cx)
2472                        .absolute_path(&clipboard_project_path, cx)?;
2473                    Some(relativize_path(
2474                        &target_base_path,
2475                        clipboard_abs_path.as_path(),
2476                    ))
2477                } else {
2478                    None
2479                };
2480                let task = if clip_is_cut && is_same_worktree {
2481                    let task = self.project.update(cx, |project, cx| {
2482                        project.rename_entry(clip_entry_id, new_path, cx)
2483                    });
2484                    PasteTask::Rename(task)
2485                } else {
2486                    let entry_id = if is_same_worktree {
2487                        clip_entry_id
2488                    } else {
2489                        entry.id
2490                    };
2491                    let task = self.project.update(cx, |project, cx| {
2492                        project.copy_entry(entry_id, relative_worktree_source_path, new_path, cx)
2493                    });
2494                    PasteTask::Copy(task)
2495                };
2496                let needs_delete = !is_same_worktree && clip_is_cut;
2497                paste_entry_tasks.insert((clip_entry_id, needs_delete), task);
2498                disambiguation_range = new_disambiguation_range.or(disambiguation_range);
2499            }
2500
2501            let item_count = paste_entry_tasks.len();
2502
2503            cx.spawn_in(window, async move |project_panel, cx| {
2504                let mut last_succeed = None;
2505                let mut need_delete_ids = Vec::new();
2506                for ((entry_id, need_delete), task) in paste_entry_tasks.into_iter() {
2507                    match task {
2508                        PasteTask::Rename(task) => {
2509                            if let Some(CreatedEntry::Included(entry)) = task.await.log_err() {
2510                                last_succeed = Some(entry);
2511                            }
2512                        }
2513                        PasteTask::Copy(task) => {
2514                            if let Some(Some(entry)) = task.await.log_err() {
2515                                last_succeed = Some(entry);
2516                                if need_delete {
2517                                    need_delete_ids.push(entry_id);
2518                                }
2519                            }
2520                        }
2521                    }
2522                }
2523                // remove entry for cut in difference worktree
2524                for entry_id in need_delete_ids {
2525                    project_panel
2526                        .update(cx, |project_panel, cx| {
2527                            project_panel
2528                                .project
2529                                .update(cx, |project, cx| project.delete_entry(entry_id, true, cx))
2530                                .context("no such entry")
2531                        })??
2532                        .await?;
2533                }
2534                // update selection
2535                if let Some(entry) = last_succeed {
2536                    project_panel
2537                        .update_in(cx, |project_panel, window, cx| {
2538                            project_panel.selection = Some(SelectedEntry {
2539                                worktree_id,
2540                                entry_id: entry.id,
2541                            });
2542
2543                            if item_count == 1 {
2544                                // open entry if not dir, and only focus if rename is not pending
2545                                if !entry.is_dir() {
2546                                    project_panel.open_entry(
2547                                        entry.id,
2548                                        disambiguation_range.is_none(),
2549                                        false,
2550                                        cx,
2551                                    );
2552                                }
2553
2554                                // if only one entry was pasted and it was disambiguated, open the rename editor
2555                                if disambiguation_range.is_some() {
2556                                    cx.defer_in(window, |this, window, cx| {
2557                                        this.rename_impl(disambiguation_range, window, cx);
2558                                    });
2559                                }
2560                            }
2561                        })
2562                        .ok();
2563                }
2564
2565                anyhow::Ok(())
2566            })
2567            .detach_and_log_err(cx);
2568
2569            if clip_is_cut {
2570                // Convert the clipboard cut entry to a copy entry after the first paste.
2571                self.clipboard = self.clipboard.take().map(ClipboardEntry::into_copy_entry);
2572            }
2573
2574            self.expand_entry(worktree_id, entry.id, cx);
2575            Some(())
2576        });
2577    }
2578
2579    fn duplicate(&mut self, _: &Duplicate, window: &mut Window, cx: &mut Context<Self>) {
2580        self.copy(&Copy {}, window, cx);
2581        self.paste(&Paste {}, window, cx);
2582    }
2583
2584    fn copy_path(
2585        &mut self,
2586        _: &zed_actions::workspace::CopyPath,
2587        _: &mut Window,
2588        cx: &mut Context<Self>,
2589    ) {
2590        let abs_file_paths = {
2591            let project = self.project.read(cx);
2592            self.effective_entries()
2593                .into_iter()
2594                .filter_map(|entry| {
2595                    let entry_path = project.path_for_entry(entry.entry_id, cx)?.path;
2596                    Some(
2597                        project
2598                            .worktree_for_id(entry.worktree_id, cx)?
2599                            .read(cx)
2600                            .abs_path()
2601                            .join(entry_path)
2602                            .to_string_lossy()
2603                            .to_string(),
2604                    )
2605                })
2606                .collect::<Vec<_>>()
2607        };
2608        if !abs_file_paths.is_empty() {
2609            cx.write_to_clipboard(ClipboardItem::new_string(abs_file_paths.join("\n")));
2610        }
2611    }
2612
2613    fn copy_relative_path(
2614        &mut self,
2615        _: &zed_actions::workspace::CopyRelativePath,
2616        _: &mut Window,
2617        cx: &mut Context<Self>,
2618    ) {
2619        let file_paths = {
2620            let project = self.project.read(cx);
2621            self.effective_entries()
2622                .into_iter()
2623                .filter_map(|entry| {
2624                    Some(
2625                        project
2626                            .path_for_entry(entry.entry_id, cx)?
2627                            .path
2628                            .to_string_lossy()
2629                            .to_string(),
2630                    )
2631                })
2632                .collect::<Vec<_>>()
2633        };
2634        if !file_paths.is_empty() {
2635            cx.write_to_clipboard(ClipboardItem::new_string(file_paths.join("\n")));
2636        }
2637    }
2638
2639    fn reveal_in_finder(
2640        &mut self,
2641        _: &RevealInFileManager,
2642        _: &mut Window,
2643        cx: &mut Context<Self>,
2644    ) {
2645        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2646            cx.reveal_path(&worktree.read(cx).abs_path().join(&entry.path));
2647        }
2648    }
2649
2650    fn remove_from_project(
2651        &mut self,
2652        _: &RemoveFromProject,
2653        _window: &mut Window,
2654        cx: &mut Context<Self>,
2655    ) {
2656        for entry in self.effective_entries().iter() {
2657            let worktree_id = entry.worktree_id;
2658            self.project
2659                .update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
2660        }
2661    }
2662
2663    fn file_abs_paths_to_diff(&self, cx: &Context<Self>) -> Option<(PathBuf, PathBuf)> {
2664        let mut selections_abs_path = self
2665            .marked_entries
2666            .iter()
2667            .filter_map(|entry| {
2668                let project = self.project.read(cx);
2669                let worktree = project.worktree_for_id(entry.worktree_id, cx)?;
2670                let entry = worktree.read(cx).entry_for_id(entry.entry_id)?;
2671                if !entry.is_file() {
2672                    return None;
2673                }
2674                worktree.read(cx).absolutize(&entry.path).ok()
2675            })
2676            .rev();
2677
2678        let last_path = selections_abs_path.next()?;
2679        let previous_to_last = selections_abs_path.next()?;
2680        Some((previous_to_last, last_path))
2681    }
2682
2683    fn compare_marked_files(
2684        &mut self,
2685        _: &CompareMarkedFiles,
2686        window: &mut Window,
2687        cx: &mut Context<Self>,
2688    ) {
2689        let selected_files = self.file_abs_paths_to_diff(cx);
2690        if let Some((file_path1, file_path2)) = selected_files {
2691            self.workspace
2692                .update(cx, |workspace, cx| {
2693                    FileDiffView::open(file_path1, file_path2, workspace, window, cx)
2694                        .detach_and_log_err(cx);
2695                })
2696                .ok();
2697        }
2698    }
2699
2700    fn open_system(&mut self, _: &OpenWithSystem, _: &mut Window, cx: &mut Context<Self>) {
2701        if let Some((worktree, entry)) = self.selected_entry(cx) {
2702            let abs_path = worktree.abs_path().join(&entry.path);
2703            cx.open_with_system(&abs_path);
2704        }
2705    }
2706
2707    fn open_in_terminal(
2708        &mut self,
2709        _: &OpenInTerminal,
2710        window: &mut Window,
2711        cx: &mut Context<Self>,
2712    ) {
2713        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2714            let abs_path = match &entry.canonical_path {
2715                Some(canonical_path) => Some(canonical_path.to_path_buf()),
2716                None => worktree.read(cx).absolutize(&entry.path).ok(),
2717            };
2718
2719            let working_directory = if entry.is_dir() {
2720                abs_path
2721            } else {
2722                abs_path.and_then(|path| Some(path.parent()?.to_path_buf()))
2723            };
2724            if let Some(working_directory) = working_directory {
2725                window.dispatch_action(
2726                    workspace::OpenTerminal { working_directory }.boxed_clone(),
2727                    cx,
2728                )
2729            }
2730        }
2731    }
2732
2733    pub fn new_search_in_directory(
2734        &mut self,
2735        _: &NewSearchInDirectory,
2736        window: &mut Window,
2737        cx: &mut Context<Self>,
2738    ) {
2739        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2740            let dir_path = if entry.is_dir() {
2741                entry.path.clone()
2742            } else {
2743                // entry is a file, use its parent directory
2744                match entry.path.parent() {
2745                    Some(parent) => Arc::from(parent),
2746                    None => {
2747                        // File at root, open search with empty filter
2748                        self.workspace
2749                            .update(cx, |workspace, cx| {
2750                                search::ProjectSearchView::new_search_in_directory(
2751                                    workspace,
2752                                    Path::new(""),
2753                                    window,
2754                                    cx,
2755                                );
2756                            })
2757                            .ok();
2758                        return;
2759                    }
2760                }
2761            };
2762
2763            let include_root = self.project.read(cx).visible_worktrees(cx).count() > 1;
2764            let dir_path = if include_root {
2765                let mut full_path = PathBuf::from(worktree.read(cx).root_name());
2766                full_path.push(&dir_path);
2767                Arc::from(full_path)
2768            } else {
2769                dir_path
2770            };
2771
2772            self.workspace
2773                .update(cx, |workspace, cx| {
2774                    search::ProjectSearchView::new_search_in_directory(
2775                        workspace, &dir_path, window, cx,
2776                    );
2777                })
2778                .ok();
2779        }
2780    }
2781
2782    fn move_entry(
2783        &mut self,
2784        entry_to_move: ProjectEntryId,
2785        destination: ProjectEntryId,
2786        destination_is_file: bool,
2787        cx: &mut Context<Self>,
2788    ) {
2789        if self
2790            .project
2791            .read(cx)
2792            .entry_is_worktree_root(entry_to_move, cx)
2793        {
2794            self.move_worktree_root(entry_to_move, destination, cx)
2795        } else {
2796            self.move_worktree_entry(entry_to_move, destination, destination_is_file, cx)
2797        }
2798    }
2799
2800    fn move_worktree_root(
2801        &mut self,
2802        entry_to_move: ProjectEntryId,
2803        destination: ProjectEntryId,
2804        cx: &mut Context<Self>,
2805    ) {
2806        self.project.update(cx, |project, cx| {
2807            let Some(worktree_to_move) = project.worktree_for_entry(entry_to_move, cx) else {
2808                return;
2809            };
2810            let Some(destination_worktree) = project.worktree_for_entry(destination, cx) else {
2811                return;
2812            };
2813
2814            let worktree_id = worktree_to_move.read(cx).id();
2815            let destination_id = destination_worktree.read(cx).id();
2816
2817            project
2818                .move_worktree(worktree_id, destination_id, cx)
2819                .log_err();
2820        });
2821    }
2822
2823    fn move_worktree_entry(
2824        &mut self,
2825        entry_to_move: ProjectEntryId,
2826        destination: ProjectEntryId,
2827        destination_is_file: bool,
2828        cx: &mut Context<Self>,
2829    ) {
2830        if entry_to_move == destination {
2831            return;
2832        }
2833
2834        let destination_worktree = self.project.update(cx, |project, cx| {
2835            let entry_path = project.path_for_entry(entry_to_move, cx)?;
2836            let destination_entry_path = project.path_for_entry(destination, cx)?.path;
2837
2838            let mut destination_path = destination_entry_path.as_ref();
2839            if destination_is_file {
2840                destination_path = destination_path.parent()?;
2841            }
2842
2843            let mut new_path = destination_path.to_path_buf();
2844            new_path.push(entry_path.path.file_name()?);
2845            if new_path != entry_path.path.as_ref() {
2846                let task = project.rename_entry(entry_to_move, new_path, cx);
2847                cx.foreground_executor().spawn(task).detach_and_log_err(cx);
2848            }
2849
2850            project.worktree_id_for_entry(destination, cx)
2851        });
2852
2853        if let Some(destination_worktree) = destination_worktree {
2854            self.expand_entry(destination_worktree, destination, cx);
2855        }
2856    }
2857
2858    fn index_for_selection(&self, selection: SelectedEntry) -> Option<(usize, usize, usize)> {
2859        self.index_for_entry(selection.entry_id, selection.worktree_id)
2860    }
2861
2862    fn disjoint_entries(&self, cx: &App) -> BTreeSet<SelectedEntry> {
2863        let marked_entries = self.effective_entries();
2864        let mut sanitized_entries = BTreeSet::new();
2865        if marked_entries.is_empty() {
2866            return sanitized_entries;
2867        }
2868
2869        let project = self.project.read(cx);
2870        let marked_entries_by_worktree: HashMap<WorktreeId, Vec<SelectedEntry>> = marked_entries
2871            .into_iter()
2872            .filter(|entry| !project.entry_is_worktree_root(entry.entry_id, cx))
2873            .fold(HashMap::default(), |mut map, entry| {
2874                map.entry(entry.worktree_id).or_default().push(entry);
2875                map
2876            });
2877
2878        for (worktree_id, marked_entries) in marked_entries_by_worktree {
2879            if let Some(worktree) = project.worktree_for_id(worktree_id, cx) {
2880                let worktree = worktree.read(cx);
2881                let marked_dir_paths = marked_entries
2882                    .iter()
2883                    .filter_map(|entry| {
2884                        worktree.entry_for_id(entry.entry_id).and_then(|entry| {
2885                            if entry.is_dir() {
2886                                Some(entry.path.as_ref())
2887                            } else {
2888                                None
2889                            }
2890                        })
2891                    })
2892                    .collect::<BTreeSet<_>>();
2893
2894                sanitized_entries.extend(marked_entries.into_iter().filter(|entry| {
2895                    let Some(entry_info) = worktree.entry_for_id(entry.entry_id) else {
2896                        return false;
2897                    };
2898                    let entry_path = entry_info.path.as_ref();
2899                    let inside_marked_dir = marked_dir_paths.iter().any(|&marked_dir_path| {
2900                        entry_path != marked_dir_path && entry_path.starts_with(marked_dir_path)
2901                    });
2902                    !inside_marked_dir
2903                }));
2904            }
2905        }
2906
2907        sanitized_entries
2908    }
2909
2910    fn effective_entries(&self) -> BTreeSet<SelectedEntry> {
2911        if let Some(selection) = self.selection {
2912            let selection = SelectedEntry {
2913                entry_id: self.resolve_entry(selection.entry_id),
2914                worktree_id: selection.worktree_id,
2915            };
2916
2917            // Default to using just the selected item when nothing is marked.
2918            if self.marked_entries.is_empty() {
2919                return BTreeSet::from([selection]);
2920            }
2921
2922            // Allow operating on the selected item even when something else is marked,
2923            // making it easier to perform one-off actions without clearing a mark.
2924            if self.marked_entries.len() == 1 && !self.marked_entries.contains(&selection) {
2925                return BTreeSet::from([selection]);
2926            }
2927        }
2928
2929        // Return only marked entries since we've already handled special cases where
2930        // only selection should take precedence. At this point, marked entries may or
2931        // may not include the current selection, which is intentional.
2932        self.marked_entries
2933            .iter()
2934            .map(|entry| SelectedEntry {
2935                entry_id: self.resolve_entry(entry.entry_id),
2936                worktree_id: entry.worktree_id,
2937            })
2938            .collect::<BTreeSet<_>>()
2939    }
2940
2941    /// Finds the currently selected subentry for a given leaf entry id. If a given entry
2942    /// has no ancestors, the project entry ID that's passed in is returned as-is.
2943    fn resolve_entry(&self, id: ProjectEntryId) -> ProjectEntryId {
2944        self.ancestors
2945            .get(&id)
2946            .and_then(|ancestors| {
2947                if ancestors.current_ancestor_depth == 0 {
2948                    return None;
2949                }
2950                ancestors.ancestors.get(ancestors.current_ancestor_depth)
2951            })
2952            .copied()
2953            .unwrap_or(id)
2954    }
2955
2956    pub fn selected_entry<'a>(&self, cx: &'a App) -> Option<(&'a Worktree, &'a project::Entry)> {
2957        let (worktree, entry) = self.selected_entry_handle(cx)?;
2958        Some((worktree.read(cx), entry))
2959    }
2960
2961    /// Compared to selected_entry, this function resolves to the currently
2962    /// selected subentry if dir auto-folding is enabled.
2963    fn selected_sub_entry<'a>(
2964        &self,
2965        cx: &'a App,
2966    ) -> Option<(Entity<Worktree>, &'a project::Entry)> {
2967        let (worktree, mut entry) = self.selected_entry_handle(cx)?;
2968
2969        let resolved_id = self.resolve_entry(entry.id);
2970        if resolved_id != entry.id {
2971            let worktree = worktree.read(cx);
2972            entry = worktree.entry_for_id(resolved_id)?;
2973        }
2974        Some((worktree, entry))
2975    }
2976    fn selected_entry_handle<'a>(
2977        &self,
2978        cx: &'a App,
2979    ) -> Option<(Entity<Worktree>, &'a project::Entry)> {
2980        let selection = self.selection?;
2981        let project = self.project.read(cx);
2982        let worktree = project.worktree_for_id(selection.worktree_id, cx)?;
2983        let entry = worktree.read(cx).entry_for_id(selection.entry_id)?;
2984        Some((worktree, entry))
2985    }
2986
2987    fn expand_to_selection(&mut self, cx: &mut Context<Self>) -> Option<()> {
2988        let (worktree, entry) = self.selected_entry(cx)?;
2989        let expanded_dir_ids = self.expanded_dir_ids.entry(worktree.id()).or_default();
2990
2991        for path in entry.path.ancestors() {
2992            let Some(entry) = worktree.entry_for_path(path) else {
2993                continue;
2994            };
2995            if entry.is_dir()
2996                && let Err(idx) = expanded_dir_ids.binary_search(&entry.id)
2997            {
2998                expanded_dir_ids.insert(idx, entry.id);
2999            }
3000        }
3001
3002        Some(())
3003    }
3004
3005    fn create_new_git_entry(
3006        parent_entry: &Entry,
3007        git_summary: GitSummary,
3008        new_entry_kind: EntryKind,
3009    ) -> GitEntry {
3010        GitEntry {
3011            entry: Entry {
3012                id: NEW_ENTRY_ID,
3013                kind: new_entry_kind,
3014                path: parent_entry.path.join("\0").into(),
3015                inode: 0,
3016                mtime: parent_entry.mtime,
3017                size: parent_entry.size,
3018                is_ignored: parent_entry.is_ignored,
3019                is_external: false,
3020                is_private: false,
3021                is_always_included: parent_entry.is_always_included,
3022                canonical_path: parent_entry.canonical_path.clone(),
3023                char_bag: parent_entry.char_bag,
3024                is_fifo: parent_entry.is_fifo,
3025            },
3026            git_summary,
3027        }
3028    }
3029
3030    fn update_visible_entries(
3031        &mut self,
3032        new_selected_entry: Option<(WorktreeId, ProjectEntryId)>,
3033        cx: &mut Context<Self>,
3034    ) {
3035        let now = Instant::now();
3036        let settings = ProjectPanelSettings::get_global(cx);
3037        let auto_collapse_dirs = settings.auto_fold_dirs;
3038        let hide_gitignore = settings.hide_gitignore;
3039        let project = self.project.read(cx);
3040        let repo_snapshots = project.git_store().read(cx).repo_snapshots(cx);
3041        self.last_worktree_root_id = project
3042            .visible_worktrees(cx)
3043            .next_back()
3044            .and_then(|worktree| worktree.read(cx).root_entry())
3045            .map(|entry| entry.id);
3046
3047        let old_ancestors = std::mem::take(&mut self.ancestors);
3048        self.visible_entries.clear();
3049        let mut max_width_item = None;
3050
3051        let visible_worktrees: Vec<_> = project.visible_worktrees(cx).collect();
3052        let hide_root = settings.hide_root && visible_worktrees.len() == 1;
3053        for worktree in visible_worktrees {
3054            let worktree_snapshot = worktree.read(cx).snapshot();
3055            let worktree_id = worktree_snapshot.id();
3056
3057            let expanded_dir_ids = match self.expanded_dir_ids.entry(worktree_id) {
3058                hash_map::Entry::Occupied(e) => e.into_mut(),
3059                hash_map::Entry::Vacant(e) => {
3060                    // The first time a worktree's root entry becomes available,
3061                    // mark that root entry as expanded.
3062                    if let Some(entry) = worktree_snapshot.root_entry() {
3063                        e.insert(vec![entry.id]).as_slice()
3064                    } else {
3065                        &[]
3066                    }
3067                }
3068            };
3069
3070            let mut new_entry_parent_id = None;
3071            let mut new_entry_kind = EntryKind::Dir;
3072            if let Some(edit_state) = &self.edit_state
3073                && edit_state.worktree_id == worktree_id
3074                && edit_state.is_new_entry()
3075            {
3076                new_entry_parent_id = Some(edit_state.entry_id);
3077                new_entry_kind = if edit_state.is_dir {
3078                    EntryKind::Dir
3079                } else {
3080                    EntryKind::File
3081                };
3082            }
3083
3084            let mut visible_worktree_entries = Vec::new();
3085            let mut entry_iter =
3086                GitTraversal::new(&repo_snapshots, worktree_snapshot.entries(true, 0));
3087            let mut auto_folded_ancestors = vec![];
3088            while let Some(entry) = entry_iter.entry() {
3089                if hide_root && Some(entry.entry) == worktree.read(cx).root_entry() {
3090                    if new_entry_parent_id == Some(entry.id) {
3091                        visible_worktree_entries.push(Self::create_new_git_entry(
3092                            entry.entry,
3093                            entry.git_summary,
3094                            new_entry_kind,
3095                        ));
3096                        new_entry_parent_id = None;
3097                    }
3098                    entry_iter.advance();
3099                    continue;
3100                }
3101                if auto_collapse_dirs && entry.kind.is_dir() {
3102                    auto_folded_ancestors.push(entry.id);
3103                    if !self.unfolded_dir_ids.contains(&entry.id)
3104                        && let Some(root_path) = worktree_snapshot.root_entry()
3105                    {
3106                        let mut child_entries = worktree_snapshot.child_entries(&entry.path);
3107                        if let Some(child) = child_entries.next()
3108                            && entry.path != root_path.path
3109                            && child_entries.next().is_none()
3110                            && child.kind.is_dir()
3111                        {
3112                            entry_iter.advance();
3113
3114                            continue;
3115                        }
3116                    }
3117                    let depth = old_ancestors
3118                        .get(&entry.id)
3119                        .map(|ancestor| ancestor.current_ancestor_depth)
3120                        .unwrap_or_default()
3121                        .min(auto_folded_ancestors.len());
3122                    if let Some(edit_state) = &mut self.edit_state
3123                        && edit_state.entry_id == entry.id
3124                    {
3125                        edit_state.depth = depth;
3126                    }
3127                    let mut ancestors = std::mem::take(&mut auto_folded_ancestors);
3128                    if ancestors.len() > 1 {
3129                        ancestors.reverse();
3130                        self.ancestors.insert(
3131                            entry.id,
3132                            FoldedAncestors {
3133                                current_ancestor_depth: depth,
3134                                ancestors,
3135                            },
3136                        );
3137                    }
3138                }
3139                auto_folded_ancestors.clear();
3140                if !hide_gitignore || !entry.is_ignored {
3141                    visible_worktree_entries.push(entry.to_owned());
3142                }
3143                let precedes_new_entry = if let Some(new_entry_id) = new_entry_parent_id {
3144                    entry.id == new_entry_id || {
3145                        self.ancestors
3146                            .get(&entry.id)
3147                            .is_some_and(|entries| entries.ancestors.contains(&new_entry_id))
3148                    }
3149                } else {
3150                    false
3151                };
3152                if precedes_new_entry && (!hide_gitignore || !entry.is_ignored) {
3153                    visible_worktree_entries.push(Self::create_new_git_entry(
3154                        entry.entry,
3155                        entry.git_summary,
3156                        new_entry_kind,
3157                    ));
3158                }
3159                let worktree_abs_path = worktree.read(cx).abs_path();
3160                let (depth, path) = if Some(entry.entry) == worktree.read(cx).root_entry() {
3161                    let Some(path_name) = worktree_abs_path.file_name() else {
3162                        continue;
3163                    };
3164                    let path = ArcCow::Borrowed(Path::new(path_name));
3165                    let depth = 0;
3166                    (depth, path)
3167                } else if entry.is_file() {
3168                    let Some(path_name) = entry
3169                        .path
3170                        .file_name()
3171                        .with_context(|| format!("Non-root entry has no file name: {entry:?}"))
3172                        .log_err()
3173                    else {
3174                        continue;
3175                    };
3176                    let path = ArcCow::Borrowed(Path::new(path_name));
3177                    let depth = entry.path.ancestors().count() - 1;
3178                    (depth, path)
3179                } else {
3180                    let path = self
3181                        .ancestors
3182                        .get(&entry.id)
3183                        .and_then(|ancestors| {
3184                            let outermost_ancestor = ancestors.ancestors.last()?;
3185                            let root_folded_entry = worktree
3186                                .read(cx)
3187                                .entry_for_id(*outermost_ancestor)?
3188                                .path
3189                                .as_ref();
3190                            entry
3191                                .path
3192                                .strip_prefix(root_folded_entry)
3193                                .ok()
3194                                .and_then(|suffix| {
3195                                    let full_path = Path::new(root_folded_entry.file_name()?);
3196                                    Some(ArcCow::Owned(Arc::<Path>::from(full_path.join(suffix))))
3197                                })
3198                        })
3199                        .or_else(|| entry.path.file_name().map(Path::new).map(ArcCow::Borrowed))
3200                        .unwrap_or_else(|| ArcCow::Owned(entry.path.clone()));
3201                    let depth = path.components().count();
3202                    (depth, path)
3203                };
3204                let width_estimate = item_width_estimate(
3205                    depth,
3206                    path.to_string_lossy().chars().count(),
3207                    entry.canonical_path.is_some(),
3208                );
3209
3210                match max_width_item.as_mut() {
3211                    Some((id, worktree_id, width)) => {
3212                        if *width < width_estimate {
3213                            *id = entry.id;
3214                            *worktree_id = worktree.read(cx).id();
3215                            *width = width_estimate;
3216                        }
3217                    }
3218                    None => {
3219                        max_width_item = Some((entry.id, worktree.read(cx).id(), width_estimate))
3220                    }
3221                }
3222
3223                if expanded_dir_ids.binary_search(&entry.id).is_err()
3224                    && entry_iter.advance_to_sibling()
3225                {
3226                    continue;
3227                }
3228                entry_iter.advance();
3229            }
3230
3231            project::sort_worktree_entries(&mut visible_worktree_entries);
3232
3233            self.visible_entries.push(VisibleEntriesForWorktree {
3234                worktree_id,
3235                entries: visible_worktree_entries,
3236                index: OnceCell::new(),
3237            })
3238        }
3239
3240        if let Some((project_entry_id, worktree_id, _)) = max_width_item {
3241            let mut visited_worktrees_length = 0;
3242            let index = self.visible_entries.iter().find_map(|visible_entries| {
3243                if worktree_id == visible_entries.worktree_id {
3244                    visible_entries
3245                        .entries
3246                        .iter()
3247                        .position(|entry| entry.id == project_entry_id)
3248                } else {
3249                    visited_worktrees_length += visible_entries.entries.len();
3250                    None
3251                }
3252            });
3253            if let Some(index) = index {
3254                self.max_width_item_index = Some(visited_worktrees_length + index);
3255            }
3256        }
3257        if let Some((worktree_id, entry_id)) = new_selected_entry {
3258            self.selection = Some(SelectedEntry {
3259                worktree_id,
3260                entry_id,
3261            });
3262        }
3263        let elapsed = now.elapsed();
3264        if self.last_reported_update.elapsed() > Duration::from_secs(3600) {
3265            telemetry::event!(
3266                "Project Panel Updated",
3267                elapsed_ms = elapsed.as_millis() as u64,
3268                worktree_entries = self
3269                    .visible_entries
3270                    .iter()
3271                    .map(|worktree| worktree.entries.len())
3272                    .sum::<usize>(),
3273            )
3274        }
3275    }
3276
3277    fn expand_entry(
3278        &mut self,
3279        worktree_id: WorktreeId,
3280        entry_id: ProjectEntryId,
3281        cx: &mut Context<Self>,
3282    ) {
3283        self.project.update(cx, |project, cx| {
3284            if let Some((worktree, expanded_dir_ids)) = project
3285                .worktree_for_id(worktree_id, cx)
3286                .zip(self.expanded_dir_ids.get_mut(&worktree_id))
3287            {
3288                project.expand_entry(worktree_id, entry_id, cx);
3289                let worktree = worktree.read(cx);
3290
3291                if let Some(mut entry) = worktree.entry_for_id(entry_id) {
3292                    loop {
3293                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
3294                            expanded_dir_ids.insert(ix, entry.id);
3295                        }
3296
3297                        if let Some(parent_entry) =
3298                            entry.path.parent().and_then(|p| worktree.entry_for_path(p))
3299                        {
3300                            entry = parent_entry;
3301                        } else {
3302                            break;
3303                        }
3304                    }
3305                }
3306            }
3307        });
3308    }
3309
3310    fn drop_external_files(
3311        &mut self,
3312        paths: &[PathBuf],
3313        entry_id: ProjectEntryId,
3314        window: &mut Window,
3315        cx: &mut Context<Self>,
3316    ) {
3317        let mut paths: Vec<Arc<Path>> = paths.iter().map(|path| Arc::from(path.clone())).collect();
3318
3319        let open_file_after_drop = paths.len() == 1 && paths[0].is_file();
3320
3321        let Some((target_directory, worktree, fs)) = maybe!({
3322            let project = self.project.read(cx);
3323            let fs = project.fs().clone();
3324            let worktree = project.worktree_for_entry(entry_id, cx)?;
3325            let entry = worktree.read(cx).entry_for_id(entry_id)?;
3326            let path = entry.path.clone();
3327            let target_directory = if entry.is_dir() {
3328                path.to_path_buf()
3329            } else {
3330                path.parent()?.to_path_buf()
3331            };
3332            Some((target_directory, worktree, fs))
3333        }) else {
3334            return;
3335        };
3336
3337        let mut paths_to_replace = Vec::new();
3338        for path in &paths {
3339            if let Some(name) = path.file_name() {
3340                let mut target_path = target_directory.clone();
3341                target_path.push(name);
3342                if target_path.exists() {
3343                    paths_to_replace.push((name.to_string_lossy().to_string(), path.clone()));
3344                }
3345            }
3346        }
3347
3348        cx.spawn_in(window, async move |this, cx| {
3349            async move {
3350                for (filename, original_path) in &paths_to_replace {
3351                    let answer = cx.update(|window, cx| {
3352                        window
3353                            .prompt(
3354                                PromptLevel::Info,
3355                                format!("A file or folder with name {filename} already exists in the destination folder. Do you want to replace it?").as_str(),
3356                                None,
3357                                &["Replace", "Cancel"],
3358                                cx,
3359                            )
3360                    })?.await?;
3361
3362                    if answer == 1
3363                        && let Some(item_idx) = paths.iter().position(|p| p == original_path) {
3364                            paths.remove(item_idx);
3365                        }
3366                }
3367
3368                if paths.is_empty() {
3369                    return Ok(());
3370                }
3371
3372                let task = worktree.update( cx, |worktree, cx| {
3373                    worktree.copy_external_entries(target_directory.into(), paths, fs, cx)
3374                })?;
3375
3376                let opened_entries = task.await.with_context(|| "failed to copy external paths")?;
3377                this.update(cx, |this, cx| {
3378                    if open_file_after_drop && !opened_entries.is_empty() {
3379                        this.open_entry(opened_entries[0], true, false, cx);
3380                    }
3381                })
3382            }
3383            .log_err().await
3384        })
3385        .detach();
3386    }
3387
3388    fn refresh_drag_cursor_style(
3389        &self,
3390        modifiers: &Modifiers,
3391        window: &mut Window,
3392        cx: &mut Context<Self>,
3393    ) {
3394        if let Some(existing_cursor) = cx.active_drag_cursor_style() {
3395            let new_cursor = if Self::is_copy_modifier_set(modifiers) {
3396                CursorStyle::DragCopy
3397            } else {
3398                CursorStyle::PointingHand
3399            };
3400            if existing_cursor != new_cursor {
3401                cx.set_active_drag_cursor_style(new_cursor, window);
3402            }
3403        }
3404    }
3405
3406    fn is_copy_modifier_set(modifiers: &Modifiers) -> bool {
3407        cfg!(target_os = "macos") && modifiers.alt
3408            || cfg!(not(target_os = "macos")) && modifiers.control
3409    }
3410
3411    fn drag_onto(
3412        &mut self,
3413        selections: &DraggedSelection,
3414        target_entry_id: ProjectEntryId,
3415        is_file: bool,
3416        window: &mut Window,
3417        cx: &mut Context<Self>,
3418    ) {
3419        if Self::is_copy_modifier_set(&window.modifiers()) {
3420            let _ = maybe!({
3421                let project = self.project.read(cx);
3422                let target_worktree = project.worktree_for_entry(target_entry_id, cx)?;
3423                let worktree_id = target_worktree.read(cx).id();
3424                let target_entry = target_worktree
3425                    .read(cx)
3426                    .entry_for_id(target_entry_id)?
3427                    .clone();
3428
3429                let mut copy_tasks = Vec::new();
3430                let mut disambiguation_range = None;
3431                for selection in selections.items() {
3432                    let (new_path, new_disambiguation_range) = self.create_paste_path(
3433                        selection,
3434                        (target_worktree.clone(), &target_entry),
3435                        cx,
3436                    )?;
3437
3438                    let task = self.project.update(cx, |project, cx| {
3439                        project.copy_entry(selection.entry_id, None, new_path, cx)
3440                    });
3441                    copy_tasks.push(task);
3442                    disambiguation_range = new_disambiguation_range.or(disambiguation_range);
3443                }
3444
3445                let item_count = copy_tasks.len();
3446
3447                cx.spawn_in(window, async move |project_panel, cx| {
3448                    let mut last_succeed = None;
3449                    for task in copy_tasks.into_iter() {
3450                        if let Some(Some(entry)) = task.await.log_err() {
3451                            last_succeed = Some(entry.id);
3452                        }
3453                    }
3454                    // update selection
3455                    if let Some(entry_id) = last_succeed {
3456                        project_panel
3457                            .update_in(cx, |project_panel, window, cx| {
3458                                project_panel.selection = Some(SelectedEntry {
3459                                    worktree_id,
3460                                    entry_id,
3461                                });
3462
3463                                // if only one entry was dragged and it was disambiguated, open the rename editor
3464                                if item_count == 1 && disambiguation_range.is_some() {
3465                                    project_panel.rename_impl(disambiguation_range, window, cx);
3466                                }
3467                            })
3468                            .ok();
3469                    }
3470                })
3471                .detach();
3472                Some(())
3473            });
3474        } else {
3475            for selection in selections.items() {
3476                self.move_entry(selection.entry_id, target_entry_id, is_file, cx);
3477            }
3478        }
3479    }
3480
3481    fn index_for_entry(
3482        &self,
3483        entry_id: ProjectEntryId,
3484        worktree_id: WorktreeId,
3485    ) -> Option<(usize, usize, usize)> {
3486        let mut total_ix = 0;
3487        for (worktree_ix, visible) in self.visible_entries.iter().enumerate() {
3488            if worktree_id != visible.worktree_id {
3489                total_ix += visible.entries.len();
3490                continue;
3491            }
3492
3493            return visible
3494                .entries
3495                .iter()
3496                .enumerate()
3497                .find(|(_, entry)| entry.id == entry_id)
3498                .map(|(ix, _)| (worktree_ix, ix, total_ix + ix));
3499        }
3500        None
3501    }
3502
3503    fn entry_at_index(&self, index: usize) -> Option<(WorktreeId, GitEntryRef<'_>)> {
3504        let mut offset = 0;
3505        for worktree in &self.visible_entries {
3506            let current_len = worktree.entries.len();
3507            if index < offset + current_len {
3508                return worktree
3509                    .entries
3510                    .get(index - offset)
3511                    .map(|entry| (worktree.worktree_id, entry.to_ref()));
3512            }
3513            offset += current_len;
3514        }
3515        None
3516    }
3517
3518    fn iter_visible_entries(
3519        &self,
3520        range: Range<usize>,
3521        window: &mut Window,
3522        cx: &mut Context<ProjectPanel>,
3523        mut callback: impl FnMut(
3524            &Entry,
3525            usize,
3526            &HashSet<Arc<Path>>,
3527            &mut Window,
3528            &mut Context<ProjectPanel>,
3529        ),
3530    ) {
3531        let mut ix = 0;
3532        for visible in &self.visible_entries {
3533            if ix >= range.end {
3534                return;
3535            }
3536
3537            if ix + visible.entries.len() <= range.start {
3538                ix += visible.entries.len();
3539                continue;
3540            }
3541
3542            let end_ix = range.end.min(ix + visible.entries.len());
3543            let entry_range = range.start.saturating_sub(ix)..end_ix - ix;
3544            let entries = visible
3545                .index
3546                .get_or_init(|| visible.entries.iter().map(|e| (e.path.clone())).collect());
3547            let base_index = ix + entry_range.start;
3548            for (i, entry) in visible.entries[entry_range].iter().enumerate() {
3549                let global_index = base_index + i;
3550                callback(entry, global_index, entries, window, cx);
3551            }
3552            ix = end_ix;
3553        }
3554    }
3555
3556    fn for_each_visible_entry(
3557        &self,
3558        range: Range<usize>,
3559        window: &mut Window,
3560        cx: &mut Context<ProjectPanel>,
3561        mut callback: impl FnMut(ProjectEntryId, EntryDetails, &mut Window, &mut Context<ProjectPanel>),
3562    ) {
3563        let mut ix = 0;
3564        for visible in &self.visible_entries {
3565            if ix >= range.end {
3566                return;
3567            }
3568
3569            if ix + visible.entries.len() <= range.start {
3570                ix += visible.entries.len();
3571                continue;
3572            }
3573
3574            let end_ix = range.end.min(ix + visible.entries.len());
3575            let git_status_setting = {
3576                let settings = ProjectPanelSettings::get_global(cx);
3577                settings.git_status
3578            };
3579            if let Some(worktree) = self
3580                .project
3581                .read(cx)
3582                .worktree_for_id(visible.worktree_id, cx)
3583            {
3584                let snapshot = worktree.read(cx).snapshot();
3585                let root_name = OsStr::new(snapshot.root_name());
3586
3587                let entry_range = range.start.saturating_sub(ix)..end_ix - ix;
3588                let entries = visible
3589                    .index
3590                    .get_or_init(|| visible.entries.iter().map(|e| (e.path.clone())).collect());
3591                for entry in visible.entries[entry_range].iter() {
3592                    let status = git_status_setting
3593                        .then_some(entry.git_summary)
3594                        .unwrap_or_default();
3595
3596                    let mut details = self.details_for_entry(
3597                        entry,
3598                        visible.worktree_id,
3599                        root_name,
3600                        entries,
3601                        status,
3602                        None,
3603                        window,
3604                        cx,
3605                    );
3606
3607                    if let Some(edit_state) = &self.edit_state {
3608                        let is_edited_entry = if edit_state.is_new_entry() {
3609                            entry.id == NEW_ENTRY_ID
3610                        } else {
3611                            entry.id == edit_state.entry_id
3612                                || self
3613                                    .ancestors
3614                                    .get(&entry.id)
3615                                    .is_some_and(|auto_folded_dirs| {
3616                                        auto_folded_dirs.ancestors.contains(&edit_state.entry_id)
3617                                    })
3618                        };
3619
3620                        if is_edited_entry {
3621                            if let Some(processing_filename) = &edit_state.processing_filename {
3622                                details.is_processing = true;
3623                                if let Some(ancestors) = edit_state
3624                                    .leaf_entry_id
3625                                    .and_then(|entry| self.ancestors.get(&entry))
3626                                {
3627                                    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;
3628                                    let all_components = ancestors.ancestors.len();
3629
3630                                    let prefix_components = all_components - position;
3631                                    let suffix_components = position.checked_sub(1);
3632                                    let mut previous_components =
3633                                        Path::new(&details.filename).components();
3634                                    let mut new_path = previous_components
3635                                        .by_ref()
3636                                        .take(prefix_components)
3637                                        .collect::<PathBuf>();
3638                                    if let Some(last_component) =
3639                                        Path::new(processing_filename).components().next_back()
3640                                    {
3641                                        new_path.push(last_component);
3642                                        previous_components.next();
3643                                    }
3644
3645                                    if suffix_components.is_some() {
3646                                        new_path.push(previous_components);
3647                                    }
3648                                    if let Some(str) = new_path.to_str() {
3649                                        details.filename.clear();
3650                                        details.filename.push_str(str);
3651                                    }
3652                                } else {
3653                                    details.filename.clear();
3654                                    details.filename.push_str(processing_filename);
3655                                }
3656                            } else {
3657                                if edit_state.is_new_entry() {
3658                                    details.filename.clear();
3659                                }
3660                                details.is_editing = true;
3661                            }
3662                        }
3663                    }
3664
3665                    callback(entry.id, details, window, cx);
3666                }
3667            }
3668            ix = end_ix;
3669        }
3670    }
3671
3672    fn find_entry_in_worktree(
3673        &self,
3674        worktree_id: WorktreeId,
3675        reverse_search: bool,
3676        only_visible_entries: bool,
3677        predicate: impl Fn(GitEntryRef, WorktreeId) -> bool,
3678        cx: &mut Context<Self>,
3679    ) -> Option<GitEntry> {
3680        if only_visible_entries {
3681            let entries = self
3682                .visible_entries
3683                .iter()
3684                .find_map(|visible| {
3685                    if worktree_id == visible.worktree_id {
3686                        Some(&visible.entries)
3687                    } else {
3688                        None
3689                    }
3690                })?
3691                .clone();
3692
3693            return utils::ReversibleIterable::new(entries.iter(), reverse_search)
3694                .find(|ele| predicate(ele.to_ref(), worktree_id))
3695                .cloned();
3696        }
3697
3698        let repo_snapshots = self
3699            .project
3700            .read(cx)
3701            .git_store()
3702            .read(cx)
3703            .repo_snapshots(cx);
3704        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
3705        worktree.read_with(cx, |tree, _| {
3706            utils::ReversibleIterable::new(
3707                GitTraversal::new(&repo_snapshots, tree.entries(true, 0usize)),
3708                reverse_search,
3709            )
3710            .find_single_ended(|ele| predicate(*ele, worktree_id))
3711            .map(|ele| ele.to_owned())
3712        })
3713    }
3714
3715    fn find_entry(
3716        &self,
3717        start: Option<&SelectedEntry>,
3718        reverse_search: bool,
3719        predicate: impl Fn(GitEntryRef, WorktreeId) -> bool,
3720        cx: &mut Context<Self>,
3721    ) -> Option<SelectedEntry> {
3722        let mut worktree_ids: Vec<_> = self
3723            .visible_entries
3724            .iter()
3725            .map(|worktree| worktree.worktree_id)
3726            .collect();
3727        let repo_snapshots = self
3728            .project
3729            .read(cx)
3730            .git_store()
3731            .read(cx)
3732            .repo_snapshots(cx);
3733
3734        let mut last_found: Option<SelectedEntry> = None;
3735
3736        if let Some(start) = start {
3737            let worktree = self
3738                .project
3739                .read(cx)
3740                .worktree_for_id(start.worktree_id, cx)?
3741                .read(cx);
3742
3743            let search = {
3744                let entry = worktree.entry_for_id(start.entry_id)?;
3745                let root_entry = worktree.root_entry()?;
3746                let tree_id = worktree.id();
3747
3748                let mut first_iter = GitTraversal::new(
3749                    &repo_snapshots,
3750                    worktree.traverse_from_path(true, true, true, entry.path.as_ref()),
3751                );
3752
3753                if reverse_search {
3754                    first_iter.next();
3755                }
3756
3757                let first = first_iter
3758                    .enumerate()
3759                    .take_until(|(count, entry)| entry.entry == root_entry && *count != 0usize)
3760                    .map(|(_, entry)| entry)
3761                    .find(|ele| predicate(*ele, tree_id))
3762                    .map(|ele| ele.to_owned());
3763
3764                let second_iter =
3765                    GitTraversal::new(&repo_snapshots, worktree.entries(true, 0usize));
3766
3767                let second = if reverse_search {
3768                    second_iter
3769                        .take_until(|ele| ele.id == start.entry_id)
3770                        .filter(|ele| predicate(*ele, tree_id))
3771                        .last()
3772                        .map(|ele| ele.to_owned())
3773                } else {
3774                    second_iter
3775                        .take_while(|ele| ele.id != start.entry_id)
3776                        .filter(|ele| predicate(*ele, tree_id))
3777                        .last()
3778                        .map(|ele| ele.to_owned())
3779                };
3780
3781                if reverse_search {
3782                    Some((second, first))
3783                } else {
3784                    Some((first, second))
3785                }
3786            };
3787
3788            if let Some((first, second)) = search {
3789                let first = first.map(|entry| SelectedEntry {
3790                    worktree_id: start.worktree_id,
3791                    entry_id: entry.id,
3792                });
3793
3794                let second = second.map(|entry| SelectedEntry {
3795                    worktree_id: start.worktree_id,
3796                    entry_id: entry.id,
3797                });
3798
3799                if first.is_some() {
3800                    return first;
3801                }
3802                last_found = second;
3803
3804                let idx = worktree_ids
3805                    .iter()
3806                    .enumerate()
3807                    .find(|(_, ele)| **ele == start.worktree_id)
3808                    .map(|(idx, _)| idx);
3809
3810                if let Some(idx) = idx {
3811                    worktree_ids.rotate_left(idx + 1usize);
3812                    worktree_ids.pop();
3813                }
3814            }
3815        }
3816
3817        for tree_id in worktree_ids.into_iter() {
3818            if let Some(found) =
3819                self.find_entry_in_worktree(tree_id, reverse_search, false, &predicate, cx)
3820            {
3821                return Some(SelectedEntry {
3822                    worktree_id: tree_id,
3823                    entry_id: found.id,
3824                });
3825            }
3826        }
3827
3828        last_found
3829    }
3830
3831    fn find_visible_entry(
3832        &self,
3833        start: Option<&SelectedEntry>,
3834        reverse_search: bool,
3835        predicate: impl Fn(GitEntryRef, WorktreeId) -> bool,
3836        cx: &mut Context<Self>,
3837    ) -> Option<SelectedEntry> {
3838        let mut worktree_ids: Vec<_> = self
3839            .visible_entries
3840            .iter()
3841            .map(|worktree| worktree.worktree_id)
3842            .collect();
3843
3844        let mut last_found: Option<SelectedEntry> = None;
3845
3846        if let Some(start) = start {
3847            let entries = self
3848                .visible_entries
3849                .iter()
3850                .find(|worktree| worktree.worktree_id == start.worktree_id)
3851                .map(|worktree| &worktree.entries)?;
3852
3853            let mut start_idx = entries
3854                .iter()
3855                .enumerate()
3856                .find(|(_, ele)| ele.id == start.entry_id)
3857                .map(|(idx, _)| idx)?;
3858
3859            if reverse_search {
3860                start_idx = start_idx.saturating_add(1usize);
3861            }
3862
3863            let (left, right) = entries.split_at_checked(start_idx)?;
3864
3865            let (first_iter, second_iter) = if reverse_search {
3866                (
3867                    utils::ReversibleIterable::new(left.iter(), reverse_search),
3868                    utils::ReversibleIterable::new(right.iter(), reverse_search),
3869                )
3870            } else {
3871                (
3872                    utils::ReversibleIterable::new(right.iter(), reverse_search),
3873                    utils::ReversibleIterable::new(left.iter(), reverse_search),
3874                )
3875            };
3876
3877            let first_search = first_iter.find(|ele| predicate(ele.to_ref(), start.worktree_id));
3878            let second_search = second_iter.find(|ele| predicate(ele.to_ref(), start.worktree_id));
3879
3880            if first_search.is_some() {
3881                return first_search.map(|entry| SelectedEntry {
3882                    worktree_id: start.worktree_id,
3883                    entry_id: entry.id,
3884                });
3885            }
3886
3887            last_found = second_search.map(|entry| SelectedEntry {
3888                worktree_id: start.worktree_id,
3889                entry_id: entry.id,
3890            });
3891
3892            let idx = worktree_ids
3893                .iter()
3894                .enumerate()
3895                .find(|(_, ele)| **ele == start.worktree_id)
3896                .map(|(idx, _)| idx);
3897
3898            if let Some(idx) = idx {
3899                worktree_ids.rotate_left(idx + 1usize);
3900                worktree_ids.pop();
3901            }
3902        }
3903
3904        for tree_id in worktree_ids.into_iter() {
3905            if let Some(found) =
3906                self.find_entry_in_worktree(tree_id, reverse_search, true, &predicate, cx)
3907            {
3908                return Some(SelectedEntry {
3909                    worktree_id: tree_id,
3910                    entry_id: found.id,
3911                });
3912            }
3913        }
3914
3915        last_found
3916    }
3917
3918    fn calculate_depth_and_difference(
3919        entry: &Entry,
3920        visible_worktree_entries: &HashSet<Arc<Path>>,
3921    ) -> (usize, usize) {
3922        let (depth, difference) = entry
3923            .path
3924            .ancestors()
3925            .skip(1) // Skip the entry itself
3926            .find_map(|ancestor| {
3927                if let Some(parent_entry) = visible_worktree_entries.get(ancestor) {
3928                    let entry_path_components_count = entry.path.components().count();
3929                    let parent_path_components_count = parent_entry.components().count();
3930                    let difference = entry_path_components_count - parent_path_components_count;
3931                    let depth = parent_entry
3932                        .ancestors()
3933                        .skip(1)
3934                        .filter(|ancestor| visible_worktree_entries.contains(*ancestor))
3935                        .count();
3936                    Some((depth + 1, difference))
3937                } else {
3938                    None
3939                }
3940            })
3941            .unwrap_or_else(|| (0, entry.path.components().count()));
3942
3943        (depth, difference)
3944    }
3945
3946    fn highlight_entry_for_external_drag(
3947        &self,
3948        target_entry: &Entry,
3949        target_worktree: &Worktree,
3950    ) -> Option<ProjectEntryId> {
3951        // Always highlight directory or parent directory if it's file
3952        if target_entry.is_dir() {
3953            Some(target_entry.id)
3954        } else {
3955            target_entry
3956                .path
3957                .parent()
3958                .and_then(|parent_path| target_worktree.entry_for_path(parent_path))
3959                .map(|parent_entry| parent_entry.id)
3960        }
3961    }
3962
3963    fn highlight_entry_for_selection_drag(
3964        &self,
3965        target_entry: &Entry,
3966        target_worktree: &Worktree,
3967        drag_state: &DraggedSelection,
3968        cx: &Context<Self>,
3969    ) -> Option<ProjectEntryId> {
3970        let target_parent_path = target_entry.path.parent();
3971
3972        // In case of single item drag, we do not highlight existing
3973        // directory which item belongs too
3974        if drag_state.items().count() == 1
3975            && drag_state.active_selection.worktree_id == target_worktree.id()
3976        {
3977            let active_entry_path = self
3978                .project
3979                .read(cx)
3980                .path_for_entry(drag_state.active_selection.entry_id, cx)?;
3981
3982            if let Some(active_parent_path) = active_entry_path.path.parent() {
3983                // Do not highlight active entry parent
3984                if active_parent_path == target_entry.path.as_ref() {
3985                    return None;
3986                }
3987
3988                // Do not highlight active entry sibling files
3989                if Some(active_parent_path) == target_parent_path && target_entry.is_file() {
3990                    return None;
3991                }
3992            }
3993        }
3994
3995        // Always highlight directory or parent directory if it's file
3996        if target_entry.is_dir() {
3997            Some(target_entry.id)
3998        } else {
3999            target_parent_path
4000                .and_then(|parent_path| target_worktree.entry_for_path(parent_path))
4001                .map(|parent_entry| parent_entry.id)
4002        }
4003    }
4004
4005    fn should_highlight_background_for_selection_drag(
4006        &self,
4007        drag_state: &DraggedSelection,
4008        last_root_id: ProjectEntryId,
4009        cx: &App,
4010    ) -> bool {
4011        // Always highlight for multiple entries
4012        if drag_state.items().count() > 1 {
4013            return true;
4014        }
4015
4016        // Since root will always have empty relative path
4017        if let Some(entry_path) = self
4018            .project
4019            .read(cx)
4020            .path_for_entry(drag_state.active_selection.entry_id, cx)
4021        {
4022            if let Some(parent_path) = entry_path.path.parent() {
4023                if !parent_path.as_os_str().is_empty() {
4024                    return true;
4025                }
4026            }
4027        }
4028
4029        // If parent is empty, check if different worktree
4030        if let Some(last_root_worktree_id) = self
4031            .project
4032            .read(cx)
4033            .worktree_id_for_entry(last_root_id, cx)
4034        {
4035            if drag_state.active_selection.worktree_id != last_root_worktree_id {
4036                return true;
4037            }
4038        }
4039
4040        false
4041    }
4042
4043    fn render_entry(
4044        &self,
4045        entry_id: ProjectEntryId,
4046        details: EntryDetails,
4047        window: &mut Window,
4048        cx: &mut Context<Self>,
4049    ) -> Stateful<Div> {
4050        const GROUP_NAME: &str = "project_entry";
4051
4052        let kind = details.kind;
4053        let is_sticky = details.sticky.is_some();
4054        let sticky_index = details.sticky.as_ref().map(|this| this.sticky_index);
4055        let settings = ProjectPanelSettings::get_global(cx);
4056        let show_editor = details.is_editing && !details.is_processing;
4057
4058        let selection = SelectedEntry {
4059            worktree_id: details.worktree_id,
4060            entry_id,
4061        };
4062
4063        let is_marked = self.marked_entries.contains(&selection);
4064        let is_active = self
4065            .selection
4066            .is_some_and(|selection| selection.entry_id == entry_id);
4067
4068        let file_name = details.filename.clone();
4069
4070        let mut icon = details.icon.clone();
4071        if settings.file_icons && show_editor && details.kind.is_file() {
4072            let filename = self.filename_editor.read(cx).text(cx);
4073            if filename.len() > 2 {
4074                icon = FileIcons::get_icon(Path::new(&filename), cx);
4075            }
4076        }
4077
4078        let filename_text_color = details.filename_text_color;
4079        let diagnostic_severity = details.diagnostic_severity;
4080        let item_colors = get_item_color(is_sticky, cx);
4081
4082        let canonical_path = details
4083            .canonical_path
4084            .as_ref()
4085            .map(|f| f.to_string_lossy().to_string());
4086        let path = details.path.clone();
4087        let path_for_external_paths = path.clone();
4088        let path_for_dragged_selection = path.clone();
4089
4090        let depth = details.depth;
4091        let worktree_id = details.worktree_id;
4092        let dragged_selection = DraggedSelection {
4093            active_selection: selection,
4094            marked_selections: Arc::from(self.marked_entries.clone()),
4095        };
4096
4097        let bg_color = if is_marked {
4098            item_colors.marked
4099        } else {
4100            item_colors.default
4101        };
4102
4103        let bg_hover_color = if is_marked {
4104            item_colors.marked
4105        } else {
4106            item_colors.hover
4107        };
4108
4109        let validation_color_and_message = if show_editor {
4110            match self
4111                .edit_state
4112                .as_ref()
4113                .map_or(ValidationState::None, |e| e.validation_state.clone())
4114            {
4115                ValidationState::Error(msg) => Some((Color::Error.color(cx), msg)),
4116                ValidationState::Warning(msg) => Some((Color::Warning.color(cx), msg)),
4117                ValidationState::None => None,
4118            }
4119        } else {
4120            None
4121        };
4122
4123        let border_color =
4124            if !self.mouse_down && is_active && self.focus_handle.contains_focused(window, cx) {
4125                match validation_color_and_message {
4126                    Some((color, _)) => color,
4127                    None => item_colors.focused,
4128                }
4129            } else {
4130                bg_color
4131            };
4132
4133        let border_hover_color =
4134            if !self.mouse_down && is_active && self.focus_handle.contains_focused(window, cx) {
4135                match validation_color_and_message {
4136                    Some((color, _)) => color,
4137                    None => item_colors.focused,
4138                }
4139            } else {
4140                bg_hover_color
4141            };
4142
4143        let folded_directory_drag_target = self.folded_directory_drag_target;
4144        let is_highlighted = {
4145            if let Some(highlight_entry_id) =
4146                self.drag_target_entry
4147                    .as_ref()
4148                    .and_then(|drag_target| match drag_target {
4149                        DragTarget::Entry {
4150                            highlight_entry_id, ..
4151                        } => Some(*highlight_entry_id),
4152                        DragTarget::Background => self.last_worktree_root_id,
4153                    })
4154            {
4155                // Highlight if same entry or it's children
4156                if entry_id == highlight_entry_id {
4157                    true
4158                } else {
4159                    maybe!({
4160                        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
4161                        let highlight_entry = worktree.read(cx).entry_for_id(highlight_entry_id)?;
4162                        Some(path.starts_with(&highlight_entry.path))
4163                    })
4164                    .unwrap_or(false)
4165                }
4166            } else {
4167                false
4168            }
4169        };
4170
4171        let id: ElementId = if is_sticky {
4172            SharedString::from(format!("project_panel_sticky_item_{}", entry_id.to_usize())).into()
4173        } else {
4174            (entry_id.to_proto() as usize).into()
4175        };
4176
4177        div()
4178            .id(id.clone())
4179            .relative()
4180            .group(GROUP_NAME)
4181            .cursor_pointer()
4182            .rounded_none()
4183            .bg(bg_color)
4184            .border_1()
4185            .border_r_2()
4186            .border_color(border_color)
4187            .hover(|style| style.bg(bg_hover_color).border_color(border_hover_color))
4188            .when(is_sticky, |this| {
4189                this.block_mouse_except_scroll()
4190            })
4191            .when(!is_sticky, |this| {
4192                this
4193                .when(is_highlighted && folded_directory_drag_target.is_none(), |this| this.border_color(transparent_white()).bg(item_colors.drag_over))
4194                .when(settings.drag_and_drop, |this| this
4195                .on_drag_move::<ExternalPaths>(cx.listener(
4196                    move |this, event: &DragMoveEvent<ExternalPaths>, _, cx| {
4197                        let is_current_target = this.drag_target_entry.as_ref()
4198                             .and_then(|entry| match entry {
4199                                 DragTarget::Entry { entry_id: target_id, .. } => Some(*target_id),
4200                                 DragTarget::Background { .. } => None,
4201                             }) == Some(entry_id);
4202
4203                        if !event.bounds.contains(&event.event.position) {
4204                            // Entry responsible for setting drag target is also responsible to
4205                            // clear it up after drag is out of bounds
4206                            if is_current_target {
4207                                this.drag_target_entry = None;
4208                            }
4209                            return;
4210                        }
4211
4212                        if is_current_target {
4213                            return;
4214                        }
4215
4216                        this.marked_entries.clear();
4217
4218                        let Some((entry_id, highlight_entry_id)) = maybe!({
4219                            let target_worktree = this.project.read(cx).worktree_for_id(selection.worktree_id, cx)?.read(cx);
4220                            let target_entry = target_worktree.entry_for_path(&path_for_external_paths)?;
4221                            let highlight_entry_id = this.highlight_entry_for_external_drag(target_entry, target_worktree)?;
4222                            Some((target_entry.id, highlight_entry_id))
4223                        }) else {
4224                            return;
4225                        };
4226
4227                        this.drag_target_entry = Some(DragTarget::Entry {
4228                            entry_id,
4229                            highlight_entry_id,
4230                        });
4231
4232                    },
4233                ))
4234                .on_drop(cx.listener(
4235                    move |this, external_paths: &ExternalPaths, window, cx| {
4236                        this.drag_target_entry = None;
4237                        this.hover_scroll_task.take();
4238                        this.drop_external_files(external_paths.paths(), entry_id, window, cx);
4239                        cx.stop_propagation();
4240                    },
4241                ))
4242                .on_drag_move::<DraggedSelection>(cx.listener(
4243                    move |this, event: &DragMoveEvent<DraggedSelection>, window, cx| {
4244                        let is_current_target = this.drag_target_entry.as_ref()
4245                             .and_then(|entry| match entry {
4246                                 DragTarget::Entry { entry_id: target_id, .. } => Some(*target_id),
4247                                 DragTarget::Background { .. } => None,
4248                             }) == Some(entry_id);
4249
4250                        if !event.bounds.contains(&event.event.position) {
4251                            // Entry responsible for setting drag target is also responsible to
4252                            // clear it up after drag is out of bounds
4253                            if is_current_target {
4254                                this.drag_target_entry = None;
4255                            }
4256                            return;
4257                        }
4258
4259                        if is_current_target {
4260                            return;
4261                        }
4262
4263                        let drag_state = event.drag(cx);
4264
4265                        if drag_state.items().count() == 1 {
4266                            this.marked_entries.clear();
4267                            this.marked_entries.push(drag_state.active_selection);
4268                        }
4269
4270                        let Some((entry_id, highlight_entry_id)) = maybe!({
4271                            let target_worktree = this.project.read(cx).worktree_for_id(selection.worktree_id, cx)?.read(cx);
4272                            let target_entry = target_worktree.entry_for_path(&path_for_dragged_selection)?;
4273                            let highlight_entry_id = this.highlight_entry_for_selection_drag(target_entry, target_worktree, drag_state, cx)?;
4274                            Some((target_entry.id, highlight_entry_id))
4275                        }) else {
4276                            return;
4277                        };
4278
4279                        this.drag_target_entry = Some(DragTarget::Entry {
4280                            entry_id,
4281                            highlight_entry_id,
4282                        });
4283
4284                        this.hover_expand_task.take();
4285
4286                        if !kind.is_dir()
4287                            || this
4288                                .expanded_dir_ids
4289                                .get(&details.worktree_id)
4290                                .is_some_and(|ids| ids.binary_search(&entry_id).is_ok())
4291                        {
4292                            return;
4293                        }
4294
4295                        let bounds = event.bounds;
4296                        this.hover_expand_task =
4297                            Some(cx.spawn_in(window, async move |this, cx| {
4298                                cx.background_executor()
4299                                    .timer(Duration::from_millis(500))
4300                                    .await;
4301                                this.update_in(cx, |this, window, cx| {
4302                                    this.hover_expand_task.take();
4303                                    if this.drag_target_entry.as_ref().and_then(|entry| match entry {
4304                                        DragTarget::Entry { entry_id: target_id, .. } => Some(*target_id),
4305                                        DragTarget::Background { .. } => None,
4306                                    }) == Some(entry_id)
4307                                        && bounds.contains(&window.mouse_position())
4308                                    {
4309                                        this.expand_entry(worktree_id, entry_id, cx);
4310                                        this.update_visible_entries(
4311                                            Some((worktree_id, entry_id)),
4312                                            cx,
4313                                        );
4314                                        cx.notify();
4315                                    }
4316                                })
4317                                .ok();
4318                            }));
4319                    },
4320                ))
4321                .on_drag(
4322                    dragged_selection,
4323                    move |selection, click_offset, _window, cx| {
4324                        cx.new(|_| DraggedProjectEntryView {
4325                            details: details.clone(),
4326                            click_offset,
4327                            selection: selection.active_selection,
4328                            selections: selection.marked_selections.clone(),
4329                        })
4330                    },
4331                )
4332                .on_drop(
4333                    cx.listener(move |this, selections: &DraggedSelection, window, cx| {
4334                        this.drag_target_entry = None;
4335                        this.hover_scroll_task.take();
4336                        this.hover_expand_task.take();
4337                        if folded_directory_drag_target.is_some() {
4338                            return;
4339                        }
4340                        this.drag_onto(selections, entry_id, kind.is_file(), window, cx);
4341                    }),
4342                ))
4343            })
4344            .on_mouse_down(
4345                MouseButton::Left,
4346                cx.listener(move |this, _, _, cx| {
4347                    this.mouse_down = true;
4348                    cx.propagate();
4349                }),
4350            )
4351            .on_click(
4352                cx.listener(move |project_panel, event: &gpui::ClickEvent, window, cx| {
4353                    if event.is_right_click() || event.first_focus()
4354                        || show_editor
4355                    {
4356                        return;
4357                    }
4358                    if event.standard_click() {
4359                        project_panel.mouse_down = false;
4360                    }
4361                    cx.stop_propagation();
4362
4363                    if let Some(selection) = project_panel.selection.filter(|_| event.modifiers().shift) {
4364                        let current_selection = project_panel.index_for_selection(selection);
4365                        let clicked_entry = SelectedEntry {
4366                            entry_id,
4367                            worktree_id,
4368                        };
4369                        let target_selection = project_panel.index_for_selection(clicked_entry);
4370                        if let Some(((_, _, source_index), (_, _, target_index))) =
4371                            current_selection.zip(target_selection)
4372                        {
4373                            let range_start = source_index.min(target_index);
4374                            let range_end = source_index.max(target_index) + 1;
4375                            let mut new_selections = Vec::new();
4376                            project_panel.for_each_visible_entry(
4377                                range_start..range_end,
4378                                window,
4379                                cx,
4380                                |entry_id, details, _, _| {
4381                                    new_selections.push(SelectedEntry {
4382                                        entry_id,
4383                                        worktree_id: details.worktree_id,
4384                                    });
4385                                },
4386                            );
4387
4388                            for selection in &new_selections {
4389                                if !project_panel.marked_entries.contains(selection) {
4390                                    project_panel.marked_entries.push(*selection);
4391                                }
4392                            }
4393
4394                            project_panel.selection = Some(clicked_entry);
4395                            if !project_panel.marked_entries.contains(&clicked_entry) {
4396                                project_panel.marked_entries.push(clicked_entry);
4397                            }
4398                        }
4399                    } else if event.modifiers().secondary() {
4400                        if event.click_count() > 1 {
4401                            project_panel.split_entry(entry_id, false, None, cx);
4402                        } else {
4403                            project_panel.selection = Some(selection);
4404                            if let Some(position) = project_panel.marked_entries.iter().position(|e| *e == selection) {
4405                                project_panel.marked_entries.remove(position);
4406                            } else {
4407                                project_panel.marked_entries.push(selection);
4408                            }
4409                        }
4410                    } else if kind.is_dir() {
4411                        project_panel.marked_entries.clear();
4412                        if is_sticky
4413                            && let Some((_, _, index)) = project_panel.index_for_entry(entry_id, worktree_id) {
4414                                project_panel.scroll_handle.scroll_to_item_with_offset(index, ScrollStrategy::Top, sticky_index.unwrap_or(0));
4415                                cx.notify();
4416                                // move down by 1px so that clicked item
4417                                // don't count as sticky anymore
4418                                cx.on_next_frame(window, |_, window, cx| {
4419                                    cx.on_next_frame(window, |this, _, cx| {
4420                                        let mut offset = this.scroll_handle.offset();
4421                                        offset.y += px(1.);
4422                                        this.scroll_handle.set_offset(offset);
4423                                        cx.notify();
4424                                    });
4425                                });
4426                                return;
4427                            }
4428                        if event.modifiers().alt {
4429                            project_panel.toggle_expand_all(entry_id, window, cx);
4430                        } else {
4431                            project_panel.toggle_expanded(entry_id, window, cx);
4432                        }
4433                    } else {
4434                        let preview_tabs_enabled = PreviewTabsSettings::get_global(cx).enabled;
4435                        let click_count = event.click_count();
4436                        let focus_opened_item = !preview_tabs_enabled || click_count > 1;
4437                        let allow_preview = preview_tabs_enabled && click_count == 1;
4438                        project_panel.open_entry(entry_id, focus_opened_item, allow_preview, cx);
4439                    }
4440                }),
4441            )
4442            .child(
4443                ListItem::new(id)
4444                    .indent_level(depth)
4445                    .indent_step_size(px(settings.indent_size))
4446                    .spacing(match settings.entry_spacing {
4447                        project_panel_settings::EntrySpacing::Comfortable => ListItemSpacing::Dense,
4448                        project_panel_settings::EntrySpacing::Standard => {
4449                            ListItemSpacing::ExtraDense
4450                        }
4451                    })
4452                    .selectable(false)
4453                    .when_some(canonical_path, |this, path| {
4454                        this.end_slot::<AnyElement>(
4455                            div()
4456                                .id("symlink_icon")
4457                                .pr_3()
4458                                .tooltip(move |window, cx| {
4459                                    Tooltip::with_meta(
4460                                        path.to_string(),
4461                                        None,
4462                                        "Symbolic Link",
4463                                        window,
4464                                        cx,
4465                                    )
4466                                })
4467                                .child(
4468                                    Icon::new(IconName::ArrowUpRight)
4469                                        .size(IconSize::Indicator)
4470                                        .color(filename_text_color),
4471                                )
4472                                .into_any_element(),
4473                        )
4474                    })
4475                    .child(if let Some(icon) = &icon {
4476                        if let Some((_, decoration_color)) =
4477                            entry_diagnostic_aware_icon_decoration_and_color(diagnostic_severity)
4478                        {
4479                            let is_warning = diagnostic_severity
4480                                .map(|severity| matches!(severity, DiagnosticSeverity::WARNING))
4481                                .unwrap_or(false);
4482                            div().child(
4483                                DecoratedIcon::new(
4484                                    Icon::from_path(icon.clone()).color(Color::Muted),
4485                                    Some(
4486                                        IconDecoration::new(
4487                                            if kind.is_file() {
4488                                                if is_warning {
4489                                                    IconDecorationKind::Triangle
4490                                                } else {
4491                                                    IconDecorationKind::X
4492                                                }
4493                                            } else {
4494                                                IconDecorationKind::Dot
4495                                            },
4496                                            bg_color,
4497                                            cx,
4498                                        )
4499                                        .group_name(Some(GROUP_NAME.into()))
4500                                        .knockout_hover_color(bg_hover_color)
4501                                        .color(decoration_color.color(cx))
4502                                        .position(Point {
4503                                            x: px(-2.),
4504                                            y: px(-2.),
4505                                        }),
4506                                    ),
4507                                )
4508                                .into_any_element(),
4509                            )
4510                        } else {
4511                            h_flex().child(Icon::from_path(icon.to_string()).color(Color::Muted))
4512                        }
4513                    } else if let Some((icon_name, color)) =
4514                        entry_diagnostic_aware_icon_name_and_color(diagnostic_severity)
4515                    {
4516                        h_flex()
4517                            .size(IconSize::default().rems())
4518                            .child(Icon::new(icon_name).color(color).size(IconSize::Small))
4519                    } else {
4520                        h_flex()
4521                            .size(IconSize::default().rems())
4522                            .invisible()
4523                            .flex_none()
4524                    })
4525                    .child(
4526                        if let (Some(editor), true) = (Some(&self.filename_editor), show_editor) {
4527                            h_flex().h_6().w_full().child(editor.clone())
4528                        } else {
4529                            h_flex().h_6().map(|mut this| {
4530                                if let Some(folded_ancestors) = self.ancestors.get(&entry_id) {
4531                                    let components = Path::new(&file_name)
4532                                        .components()
4533                                        .map(|comp| {
4534                                            comp.as_os_str().to_string_lossy().into_owned()
4535                                        })
4536                                        .collect::<Vec<_>>();
4537
4538                                    let components_len = components.len();
4539                                    // TODO this can underflow
4540                                    let active_index = components_len
4541                                        - 1
4542                                        - folded_ancestors.current_ancestor_depth;
4543                                        const DELIMITER: SharedString =
4544                                        SharedString::new_static(std::path::MAIN_SEPARATOR_STR);
4545                                    for (index, component) in components.into_iter().enumerate() {
4546                                        if index != 0 {
4547                                                let delimiter_target_index = index - 1;
4548                                                let target_entry_id = folded_ancestors.ancestors.get(components_len - 1 - delimiter_target_index).cloned();
4549                                                this = this.child(
4550                                                    div()
4551                                                    .when(!is_sticky, |div| {
4552                                                        div
4553                                                            .when(settings.drag_and_drop, |div| div
4554                                                            .on_drop(cx.listener(move |this, selections: &DraggedSelection, window, cx| {
4555                                                            this.hover_scroll_task.take();
4556                                                            this.drag_target_entry = None;
4557                                                            this.folded_directory_drag_target = None;
4558                                                            if let Some(target_entry_id) = target_entry_id {
4559                                                                this.drag_onto(selections, target_entry_id, kind.is_file(), window, cx);
4560                                                            }
4561                                                        }))
4562                                                        .on_drag_move(cx.listener(
4563                                                            move |this, event: &DragMoveEvent<DraggedSelection>, _, _| {
4564                                                                if event.bounds.contains(&event.event.position) {
4565                                                                    this.folded_directory_drag_target = Some(
4566                                                                        FoldedDirectoryDragTarget {
4567                                                                            entry_id,
4568                                                                            index: delimiter_target_index,
4569                                                                            is_delimiter_target: true,
4570                                                                        }
4571                                                                    );
4572                                                                } else {
4573                                                                    let is_current_target = this.folded_directory_drag_target
4574                                                                        .is_some_and(|target|
4575                                                                            target.entry_id == entry_id &&
4576                                                                            target.index == delimiter_target_index &&
4577                                                                            target.is_delimiter_target
4578                                                                        );
4579                                                                    if is_current_target {
4580                                                                        this.folded_directory_drag_target = None;
4581                                                                    }
4582                                                                }
4583
4584                                                            },
4585                                                        )))
4586                                                    })
4587                                                    .child(
4588                                                        Label::new(DELIMITER.clone())
4589                                                            .single_line()
4590                                                            .color(filename_text_color)
4591                                                    )
4592                                                );
4593                                        }
4594                                        let id = SharedString::from(format!(
4595                                            "project_panel_path_component_{}_{index}",
4596                                            entry_id.to_usize()
4597                                        ));
4598                                        let label = div()
4599                                            .id(id)
4600                                            .when(!is_sticky,| div| {
4601                                                div
4602                                                .when(index != components_len - 1, |div|{
4603                                                    let target_entry_id = folded_ancestors.ancestors.get(components_len - 1 - index).cloned();
4604                                                    div
4605                                                    .when(settings.drag_and_drop, |div| div
4606                                                    .on_drag_move(cx.listener(
4607                                                        move |this, event: &DragMoveEvent<DraggedSelection>, _, _| {
4608                                                        if event.bounds.contains(&event.event.position) {
4609                                                                this.folded_directory_drag_target = Some(
4610                                                                    FoldedDirectoryDragTarget {
4611                                                                        entry_id,
4612                                                                        index,
4613                                                                        is_delimiter_target: false,
4614                                                                    }
4615                                                                );
4616                                                            } else {
4617                                                                let is_current_target = this.folded_directory_drag_target
4618                                                                    .as_ref()
4619                                                                    .is_some_and(|target|
4620                                                                        target.entry_id == entry_id &&
4621                                                                        target.index == index &&
4622                                                                        !target.is_delimiter_target
4623                                                                    );
4624                                                                if is_current_target {
4625                                                                    this.folded_directory_drag_target = None;
4626                                                                }
4627                                                            }
4628                                                        },
4629                                                    ))
4630                                                    .on_drop(cx.listener(move |this, selections: &DraggedSelection, window,cx| {
4631                                                        this.hover_scroll_task.take();
4632                                                        this.drag_target_entry = None;
4633                                                        this.folded_directory_drag_target = None;
4634                                                        if let Some(target_entry_id) = target_entry_id {
4635                                                            this.drag_onto(selections, target_entry_id, kind.is_file(), window, cx);
4636                                                        }
4637                                                    }))
4638                                                    .when(folded_directory_drag_target.is_some_and(|target|
4639                                                        target.entry_id == entry_id &&
4640                                                        target.index == index
4641                                                    ), |this| {
4642                                                        this.bg(item_colors.drag_over)
4643                                                    }))
4644                                                })
4645                                            })
4646                                            .on_click(cx.listener(move |this, _, _, cx| {
4647                                                if index != active_index
4648                                                    && let Some(folds) =
4649                                                        this.ancestors.get_mut(&entry_id)
4650                                                    {
4651                                                        folds.current_ancestor_depth =
4652                                                            components_len - 1 - index;
4653                                                        cx.notify();
4654                                                    }
4655                                            }))
4656                                            .child(
4657                                                Label::new(component)
4658                                                    .single_line()
4659                                                    .color(filename_text_color)
4660                                                    .when(
4661                                                        index == active_index
4662                                                            && (is_active || is_marked),
4663                                                        |this| this.underline(),
4664                                                    ),
4665                                            );
4666
4667                                        this = this.child(label);
4668                                    }
4669
4670                                    this
4671                                } else {
4672                                    this.child(
4673                                        Label::new(file_name)
4674                                            .single_line()
4675                                            .color(filename_text_color),
4676                                    )
4677                                }
4678                            })
4679                        },
4680                    )
4681                    .on_secondary_mouse_down(cx.listener(
4682                        move |this, event: &MouseDownEvent, window, cx| {
4683                            // Stop propagation to prevent the catch-all context menu for the project
4684                            // panel from being deployed.
4685                            cx.stop_propagation();
4686                            // Some context menu actions apply to all marked entries. If the user
4687                            // right-clicks on an entry that is not marked, they may not realize the
4688                            // action applies to multiple entries. To avoid inadvertent changes, all
4689                            // entries are unmarked.
4690                            if !this.marked_entries.contains(&selection) {
4691                                this.marked_entries.clear();
4692                            }
4693                            this.deploy_context_menu(event.position, entry_id, window, cx);
4694                        },
4695                    ))
4696                    .overflow_x(),
4697            )
4698            .when_some(
4699                validation_color_and_message,
4700                |this, (color, message)| {
4701                    this
4702                    .relative()
4703                    .child(
4704                        deferred(
4705                            div()
4706                            .occlude()
4707                            .absolute()
4708                            .top_full()
4709                            .left(px(-1.)) // Used px over rem so that it doesn't change with font size
4710                            .right(px(-0.5))
4711                            .py_1()
4712                            .px_2()
4713                            .border_1()
4714                            .border_color(color)
4715                            .bg(cx.theme().colors().background)
4716                            .child(
4717                                Label::new(message)
4718                                .color(Color::from(color))
4719                                .size(LabelSize::Small)
4720                            )
4721                        )
4722                    )
4723                }
4724            )
4725    }
4726
4727    fn details_for_entry(
4728        &self,
4729        entry: &Entry,
4730        worktree_id: WorktreeId,
4731        root_name: &OsStr,
4732        entries_paths: &HashSet<Arc<Path>>,
4733        git_status: GitSummary,
4734        sticky: Option<StickyDetails>,
4735        _window: &mut Window,
4736        cx: &mut Context<Self>,
4737    ) -> EntryDetails {
4738        let (show_file_icons, show_folder_icons) = {
4739            let settings = ProjectPanelSettings::get_global(cx);
4740            (settings.file_icons, settings.folder_icons)
4741        };
4742
4743        let expanded_entry_ids = self
4744            .expanded_dir_ids
4745            .get(&worktree_id)
4746            .map(Vec::as_slice)
4747            .unwrap_or(&[]);
4748        let is_expanded = expanded_entry_ids.binary_search(&entry.id).is_ok();
4749
4750        let icon = match entry.kind {
4751            EntryKind::File => {
4752                if show_file_icons {
4753                    FileIcons::get_icon(&entry.path, cx)
4754                } else {
4755                    None
4756                }
4757            }
4758            _ => {
4759                if show_folder_icons {
4760                    FileIcons::get_folder_icon(is_expanded, cx)
4761                } else {
4762                    FileIcons::get_chevron_icon(is_expanded, cx)
4763                }
4764            }
4765        };
4766
4767        let (depth, difference) =
4768            ProjectPanel::calculate_depth_and_difference(entry, entries_paths);
4769
4770        let filename = match difference {
4771            diff if diff > 1 => entry
4772                .path
4773                .iter()
4774                .skip(entry.path.components().count() - diff)
4775                .collect::<PathBuf>()
4776                .to_str()
4777                .unwrap_or_default()
4778                .to_string(),
4779            _ => entry
4780                .path
4781                .file_name()
4782                .map(|name| name.to_string_lossy().into_owned())
4783                .unwrap_or_else(|| root_name.to_string_lossy().to_string()),
4784        };
4785
4786        let selection = SelectedEntry {
4787            worktree_id,
4788            entry_id: entry.id,
4789        };
4790        let is_marked = self.marked_entries.contains(&selection);
4791        let is_selected = self.selection == Some(selection);
4792
4793        let diagnostic_severity = self
4794            .diagnostics
4795            .get(&(worktree_id, entry.path.to_path_buf()))
4796            .cloned();
4797
4798        let filename_text_color =
4799            entry_git_aware_label_color(git_status, entry.is_ignored, is_marked);
4800
4801        let is_cut = self
4802            .clipboard
4803            .as_ref()
4804            .is_some_and(|e| e.is_cut() && e.items().contains(&selection));
4805
4806        EntryDetails {
4807            filename,
4808            icon,
4809            path: entry.path.clone(),
4810            depth,
4811            kind: entry.kind,
4812            is_ignored: entry.is_ignored,
4813            is_expanded,
4814            is_selected,
4815            is_marked,
4816            is_editing: false,
4817            is_processing: false,
4818            is_cut,
4819            sticky,
4820            filename_text_color,
4821            diagnostic_severity,
4822            git_status,
4823            is_private: entry.is_private,
4824            worktree_id,
4825            canonical_path: entry.canonical_path.clone(),
4826        }
4827    }
4828
4829    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
4830        if !Self::should_show_scrollbar(cx)
4831            || !(self.show_scrollbar || self.vertical_scrollbar_state.is_dragging())
4832        {
4833            return None;
4834        }
4835        Some(
4836            div()
4837                .occlude()
4838                .id("project-panel-vertical-scroll")
4839                .on_mouse_move(cx.listener(|_, _, _, cx| {
4840                    cx.notify();
4841                    cx.stop_propagation()
4842                }))
4843                .on_hover(|_, _, cx| {
4844                    cx.stop_propagation();
4845                })
4846                .on_any_mouse_down(|_, _, cx| {
4847                    cx.stop_propagation();
4848                })
4849                .on_mouse_up(
4850                    MouseButton::Left,
4851                    cx.listener(|this, _, window, cx| {
4852                        if !this.vertical_scrollbar_state.is_dragging()
4853                            && !this.focus_handle.contains_focused(window, cx)
4854                        {
4855                            this.hide_scrollbar(window, cx);
4856                            cx.notify();
4857                        }
4858
4859                        cx.stop_propagation();
4860                    }),
4861                )
4862                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
4863                    cx.notify();
4864                }))
4865                .h_full()
4866                .absolute()
4867                .right_1()
4868                .top_1()
4869                .bottom_1()
4870                .w(px(12.))
4871                .cursor_default()
4872                .children(Scrollbar::vertical(
4873                    // percentage as f32..end_offset as f32,
4874                    self.vertical_scrollbar_state.clone(),
4875                )),
4876        )
4877    }
4878
4879    fn render_horizontal_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
4880        if !Self::should_show_scrollbar(cx)
4881            || !(self.show_scrollbar || self.horizontal_scrollbar_state.is_dragging())
4882        {
4883            return None;
4884        }
4885        Scrollbar::horizontal(self.horizontal_scrollbar_state.clone()).map(|scrollbar| {
4886            div()
4887                .occlude()
4888                .id("project-panel-horizontal-scroll")
4889                .on_mouse_move(cx.listener(|_, _, _, cx| {
4890                    cx.notify();
4891                    cx.stop_propagation()
4892                }))
4893                .on_hover(|_, _, cx| {
4894                    cx.stop_propagation();
4895                })
4896                .on_any_mouse_down(|_, _, cx| {
4897                    cx.stop_propagation();
4898                })
4899                .on_mouse_up(
4900                    MouseButton::Left,
4901                    cx.listener(|this, _, window, cx| {
4902                        if !this.horizontal_scrollbar_state.is_dragging()
4903                            && !this.focus_handle.contains_focused(window, cx)
4904                        {
4905                            this.hide_scrollbar(window, cx);
4906                            cx.notify();
4907                        }
4908
4909                        cx.stop_propagation();
4910                    }),
4911                )
4912                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
4913                    cx.notify();
4914                }))
4915                .w_full()
4916                .absolute()
4917                .right_1()
4918                .left_1()
4919                .bottom_1()
4920                .h(px(12.))
4921                .cursor_default()
4922                .child(scrollbar)
4923        })
4924    }
4925
4926    fn dispatch_context(&self, window: &Window, cx: &Context<Self>) -> KeyContext {
4927        let mut dispatch_context = KeyContext::new_with_defaults();
4928        dispatch_context.add("ProjectPanel");
4929        dispatch_context.add("menu");
4930
4931        let identifier = if self.filename_editor.focus_handle(cx).is_focused(window) {
4932            "editing"
4933        } else {
4934            "not_editing"
4935        };
4936
4937        dispatch_context.add(identifier);
4938        dispatch_context
4939    }
4940
4941    fn should_show_scrollbar(cx: &App) -> bool {
4942        let show = ProjectPanelSettings::get_global(cx)
4943            .scrollbar
4944            .show
4945            .unwrap_or_else(|| EditorSettings::get_global(cx).scrollbar.show);
4946        match show {
4947            ShowScrollbar::Auto => true,
4948            ShowScrollbar::System => true,
4949            ShowScrollbar::Always => true,
4950            ShowScrollbar::Never => false,
4951        }
4952    }
4953
4954    fn should_autohide_scrollbar(cx: &App) -> bool {
4955        let show = ProjectPanelSettings::get_global(cx)
4956            .scrollbar
4957            .show
4958            .unwrap_or_else(|| EditorSettings::get_global(cx).scrollbar.show);
4959        match show {
4960            ShowScrollbar::Auto => true,
4961            ShowScrollbar::System => cx
4962                .try_global::<ScrollbarAutoHide>()
4963                .map_or_else(|| cx.should_auto_hide_scrollbars(), |autohide| autohide.0),
4964            ShowScrollbar::Always => false,
4965            ShowScrollbar::Never => true,
4966        }
4967    }
4968
4969    fn hide_scrollbar(&mut self, window: &mut Window, cx: &mut Context<Self>) {
4970        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
4971        if !Self::should_autohide_scrollbar(cx) {
4972            return;
4973        }
4974        self.hide_scrollbar_task = Some(cx.spawn_in(window, async move |panel, cx| {
4975            cx.background_executor()
4976                .timer(SCROLLBAR_SHOW_INTERVAL)
4977                .await;
4978            panel
4979                .update(cx, |panel, cx| {
4980                    panel.show_scrollbar = false;
4981                    cx.notify();
4982                })
4983                .log_err();
4984        }))
4985    }
4986
4987    fn reveal_entry(
4988        &mut self,
4989        project: Entity<Project>,
4990        entry_id: ProjectEntryId,
4991        skip_ignored: bool,
4992        cx: &mut Context<Self>,
4993    ) -> Result<()> {
4994        let worktree = project
4995            .read(cx)
4996            .worktree_for_entry(entry_id, cx)
4997            .context("can't reveal a non-existent entry in the project panel")?;
4998        let worktree = worktree.read(cx);
4999        if skip_ignored
5000            && worktree
5001                .entry_for_id(entry_id)
5002                .is_none_or(|entry| entry.is_ignored && !entry.is_always_included)
5003        {
5004            anyhow::bail!("can't reveal an ignored entry in the project panel");
5005        }
5006        let is_active_item_file_diff_view = self
5007            .workspace
5008            .upgrade()
5009            .and_then(|ws| ws.read(cx).active_item(cx))
5010            .map(|item| item.act_as_type(TypeId::of::<FileDiffView>(), cx).is_some())
5011            .unwrap_or(false);
5012        if is_active_item_file_diff_view {
5013            return Ok(());
5014        }
5015
5016        let worktree_id = worktree.id();
5017        self.expand_entry(worktree_id, entry_id, cx);
5018        self.update_visible_entries(Some((worktree_id, entry_id)), cx);
5019        self.marked_entries.clear();
5020        self.marked_entries.push(SelectedEntry {
5021            worktree_id,
5022            entry_id,
5023        });
5024        self.autoscroll(cx);
5025        cx.notify();
5026        Ok(())
5027    }
5028
5029    fn find_active_indent_guide(
5030        &self,
5031        indent_guides: &[IndentGuideLayout],
5032        cx: &App,
5033    ) -> Option<usize> {
5034        let (worktree, entry) = self.selected_entry(cx)?;
5035
5036        // Find the parent entry of the indent guide, this will either be the
5037        // expanded folder we have selected, or the parent of the currently
5038        // selected file/collapsed directory
5039        let mut entry = entry;
5040        loop {
5041            let is_expanded_dir = entry.is_dir()
5042                && self
5043                    .expanded_dir_ids
5044                    .get(&worktree.id())
5045                    .map(|ids| ids.binary_search(&entry.id).is_ok())
5046                    .unwrap_or(false);
5047            if is_expanded_dir {
5048                break;
5049            }
5050            entry = worktree.entry_for_path(&entry.path.parent()?)?;
5051        }
5052
5053        let (active_indent_range, depth) = {
5054            let (worktree_ix, child_offset, ix) = self.index_for_entry(entry.id, worktree.id())?;
5055            let child_paths = &self.visible_entries[worktree_ix].entries;
5056            let mut child_count = 0;
5057            let depth = entry.path.ancestors().count();
5058            while let Some(entry) = child_paths.get(child_offset + child_count + 1) {
5059                if entry.path.ancestors().count() <= depth {
5060                    break;
5061                }
5062                child_count += 1;
5063            }
5064
5065            let start = ix + 1;
5066            let end = start + child_count;
5067
5068            let visible_worktree = &self.visible_entries[worktree_ix];
5069            let visible_worktree_entries = visible_worktree.index.get_or_init(|| {
5070                visible_worktree
5071                    .entries
5072                    .iter()
5073                    .map(|e| (e.path.clone()))
5074                    .collect()
5075            });
5076
5077            // Calculate the actual depth of the entry, taking into account that directories can be auto-folded.
5078            let (depth, _) = Self::calculate_depth_and_difference(entry, visible_worktree_entries);
5079            (start..end, depth)
5080        };
5081
5082        let candidates = indent_guides
5083            .iter()
5084            .enumerate()
5085            .filter(|(_, indent_guide)| indent_guide.offset.x == depth);
5086
5087        for (i, indent) in candidates {
5088            // Find matches that are either an exact match, partially on screen, or inside the enclosing indent
5089            if active_indent_range.start <= indent.offset.y + indent.length
5090                && indent.offset.y <= active_indent_range.end
5091            {
5092                return Some(i);
5093            }
5094        }
5095        None
5096    }
5097
5098    fn render_sticky_entries(
5099        &self,
5100        child: StickyProjectPanelCandidate,
5101        window: &mut Window,
5102        cx: &mut Context<Self>,
5103    ) -> SmallVec<[AnyElement; 8]> {
5104        let project = self.project.read(cx);
5105
5106        let Some((worktree_id, entry_ref)) = self.entry_at_index(child.index) else {
5107            return SmallVec::new();
5108        };
5109
5110        let Some(visible) = self
5111            .visible_entries
5112            .iter()
5113            .find(|worktree| worktree.worktree_id == worktree_id)
5114        else {
5115            return SmallVec::new();
5116        };
5117
5118        let Some(worktree) = project.worktree_for_id(worktree_id, cx) else {
5119            return SmallVec::new();
5120        };
5121        let worktree = worktree.read(cx).snapshot();
5122
5123        let paths = visible
5124            .index
5125            .get_or_init(|| visible.entries.iter().map(|e| e.path.clone()).collect());
5126
5127        let mut sticky_parents = Vec::new();
5128        let mut current_path = entry_ref.path.clone();
5129
5130        'outer: loop {
5131            if let Some(parent_path) = current_path.parent() {
5132                for ancestor_path in parent_path.ancestors() {
5133                    if paths.contains(ancestor_path)
5134                        && let Some(parent_entry) = worktree.entry_for_path(ancestor_path)
5135                    {
5136                        sticky_parents.push(parent_entry.clone());
5137                        current_path = parent_entry.path.clone();
5138                        continue 'outer;
5139                    }
5140                }
5141            }
5142            break 'outer;
5143        }
5144
5145        if sticky_parents.is_empty() {
5146            return SmallVec::new();
5147        }
5148
5149        sticky_parents.reverse();
5150
5151        let panel_settings = ProjectPanelSettings::get_global(cx);
5152        let git_status_enabled = panel_settings.git_status;
5153        let root_name = OsStr::new(worktree.root_name());
5154
5155        let git_summaries_by_id = if git_status_enabled {
5156            visible
5157                .entries
5158                .iter()
5159                .map(|e| (e.id, e.git_summary))
5160                .collect::<HashMap<_, _>>()
5161        } else {
5162            Default::default()
5163        };
5164
5165        // already checked if non empty above
5166        let last_item_index = sticky_parents.len() - 1;
5167        sticky_parents
5168            .iter()
5169            .enumerate()
5170            .map(|(index, entry)| {
5171                let git_status = git_summaries_by_id
5172                    .get(&entry.id)
5173                    .copied()
5174                    .unwrap_or_default();
5175                let sticky_details = Some(StickyDetails {
5176                    sticky_index: index,
5177                });
5178                let details = self.details_for_entry(
5179                    entry,
5180                    worktree_id,
5181                    root_name,
5182                    paths,
5183                    git_status,
5184                    sticky_details,
5185                    window,
5186                    cx,
5187                );
5188                self.render_entry(entry.id, details, window, cx)
5189                    .when(index == last_item_index, |this| {
5190                        let shadow_color_top = hsla(0.0, 0.0, 0.0, 0.1);
5191                        let shadow_color_bottom = hsla(0.0, 0.0, 0.0, 0.);
5192                        let sticky_shadow = div()
5193                            .absolute()
5194                            .left_0()
5195                            .bottom_neg_1p5()
5196                            .h_1p5()
5197                            .w_full()
5198                            .bg(linear_gradient(
5199                                0.,
5200                                linear_color_stop(shadow_color_top, 1.),
5201                                linear_color_stop(shadow_color_bottom, 0.),
5202                            ));
5203                        this.child(sticky_shadow)
5204                    })
5205                    .into_any()
5206            })
5207            .collect()
5208    }
5209}
5210
5211#[derive(Clone)]
5212struct StickyProjectPanelCandidate {
5213    index: usize,
5214    depth: usize,
5215}
5216
5217impl StickyCandidate for StickyProjectPanelCandidate {
5218    fn depth(&self) -> usize {
5219        self.depth
5220    }
5221}
5222
5223fn item_width_estimate(depth: usize, item_text_chars: usize, is_symlink: bool) -> usize {
5224    const ICON_SIZE_FACTOR: usize = 2;
5225    let mut item_width = depth * ICON_SIZE_FACTOR + item_text_chars;
5226    if is_symlink {
5227        item_width += ICON_SIZE_FACTOR;
5228    }
5229    item_width
5230}
5231
5232impl Render for ProjectPanel {
5233    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
5234        let has_worktree = !self.visible_entries.is_empty();
5235        let project = self.project.read(cx);
5236        let panel_settings = ProjectPanelSettings::get_global(cx);
5237        let indent_size = panel_settings.indent_size;
5238        let show_indent_guides = panel_settings.indent_guides.show == ShowIndentGuides::Always;
5239        let show_sticky_entries = {
5240            if panel_settings.sticky_scroll {
5241                let is_scrollable = self.scroll_handle.is_scrollable();
5242                let is_scrolled = self.scroll_handle.offset().y < px(0.);
5243                is_scrollable && is_scrolled
5244            } else {
5245                false
5246            }
5247        };
5248
5249        let is_local = project.is_local();
5250
5251        if has_worktree {
5252            let item_count = self
5253                .visible_entries
5254                .iter()
5255                .map(|worktree| worktree.entries.len())
5256                .sum();
5257
5258            fn handle_drag_move<T: 'static>(
5259                this: &mut ProjectPanel,
5260                e: &DragMoveEvent<T>,
5261                window: &mut Window,
5262                cx: &mut Context<ProjectPanel>,
5263            ) {
5264                if let Some(previous_position) = this.previous_drag_position {
5265                    // Refresh cursor only when an actual drag happens,
5266                    // because modifiers are not updated when the cursor is not moved.
5267                    if e.event.position != previous_position {
5268                        this.refresh_drag_cursor_style(&e.event.modifiers, window, cx);
5269                    }
5270                }
5271                this.previous_drag_position = Some(e.event.position);
5272
5273                if !e.bounds.contains(&e.event.position) {
5274                    this.drag_target_entry = None;
5275                    return;
5276                }
5277                this.hover_scroll_task.take();
5278                let panel_height = e.bounds.size.height;
5279                if panel_height <= px(0.) {
5280                    return;
5281                }
5282
5283                let event_offset = e.event.position.y - e.bounds.origin.y;
5284                // How far along in the project panel is our cursor? (0. is the top of a list, 1. is the bottom)
5285                let hovered_region_offset = event_offset / panel_height;
5286
5287                // We want the scrolling to be a bit faster when the cursor is closer to the edge of a list.
5288                // These pixels offsets were picked arbitrarily.
5289                let vertical_scroll_offset = if hovered_region_offset <= 0.05 {
5290                    8.
5291                } else if hovered_region_offset <= 0.15 {
5292                    5.
5293                } else if hovered_region_offset >= 0.95 {
5294                    -8.
5295                } else if hovered_region_offset >= 0.85 {
5296                    -5.
5297                } else {
5298                    return;
5299                };
5300                let adjustment = point(px(0.), px(vertical_scroll_offset));
5301                this.hover_scroll_task = Some(cx.spawn_in(window, async move |this, cx| {
5302                    loop {
5303                        let should_stop_scrolling = this
5304                            .update(cx, |this, cx| {
5305                                this.hover_scroll_task.as_ref()?;
5306                                let handle = this.scroll_handle.0.borrow_mut();
5307                                let offset = handle.base_handle.offset();
5308
5309                                handle.base_handle.set_offset(offset + adjustment);
5310                                cx.notify();
5311                                Some(())
5312                            })
5313                            .ok()
5314                            .flatten()
5315                            .is_some();
5316                        if should_stop_scrolling {
5317                            return;
5318                        }
5319                        cx.background_executor()
5320                            .timer(Duration::from_millis(16))
5321                            .await;
5322                    }
5323                }));
5324            }
5325            h_flex()
5326                .id("project-panel")
5327                .group("project-panel")
5328                .when(panel_settings.drag_and_drop, |this| {
5329                    this.on_drag_move(cx.listener(handle_drag_move::<ExternalPaths>))
5330                        .on_drag_move(cx.listener(handle_drag_move::<DraggedSelection>))
5331                })
5332                .size_full()
5333                .relative()
5334                .on_modifiers_changed(cx.listener(
5335                    |this, event: &ModifiersChangedEvent, window, cx| {
5336                        this.refresh_drag_cursor_style(&event.modifiers, window, cx);
5337                    },
5338                ))
5339                .on_hover(cx.listener(|this, hovered, window, cx| {
5340                    if *hovered {
5341                        this.show_scrollbar = true;
5342                        this.hide_scrollbar_task.take();
5343                        cx.notify();
5344                    } else if !this.focus_handle.contains_focused(window, cx) {
5345                        this.hide_scrollbar(window, cx);
5346                    }
5347                }))
5348                .on_click(cx.listener(|this, event, _, cx| {
5349                    if matches!(event, gpui::ClickEvent::Keyboard(_)) {
5350                        return;
5351                    }
5352                    cx.stop_propagation();
5353                    this.selection = None;
5354                    this.marked_entries.clear();
5355                }))
5356                .key_context(self.dispatch_context(window, cx))
5357                .on_action(cx.listener(Self::select_next))
5358                .on_action(cx.listener(Self::select_previous))
5359                .on_action(cx.listener(Self::select_first))
5360                .on_action(cx.listener(Self::select_last))
5361                .on_action(cx.listener(Self::select_parent))
5362                .on_action(cx.listener(Self::select_next_git_entry))
5363                .on_action(cx.listener(Self::select_prev_git_entry))
5364                .on_action(cx.listener(Self::select_next_diagnostic))
5365                .on_action(cx.listener(Self::select_prev_diagnostic))
5366                .on_action(cx.listener(Self::select_next_directory))
5367                .on_action(cx.listener(Self::select_prev_directory))
5368                .on_action(cx.listener(Self::expand_selected_entry))
5369                .on_action(cx.listener(Self::collapse_selected_entry))
5370                .on_action(cx.listener(Self::collapse_all_entries))
5371                .on_action(cx.listener(Self::open))
5372                .on_action(cx.listener(Self::open_permanent))
5373                .on_action(cx.listener(Self::open_split_vertical))
5374                .on_action(cx.listener(Self::open_split_horizontal))
5375                .on_action(cx.listener(Self::confirm))
5376                .on_action(cx.listener(Self::cancel))
5377                .on_action(cx.listener(Self::copy_path))
5378                .on_action(cx.listener(Self::copy_relative_path))
5379                .on_action(cx.listener(Self::new_search_in_directory))
5380                .on_action(cx.listener(Self::unfold_directory))
5381                .on_action(cx.listener(Self::fold_directory))
5382                .on_action(cx.listener(Self::remove_from_project))
5383                .on_action(cx.listener(Self::compare_marked_files))
5384                .when(!project.is_read_only(cx), |el| {
5385                    el.on_action(cx.listener(Self::new_file))
5386                        .on_action(cx.listener(Self::new_directory))
5387                        .on_action(cx.listener(Self::rename))
5388                        .on_action(cx.listener(Self::delete))
5389                        .on_action(cx.listener(Self::trash))
5390                        .on_action(cx.listener(Self::cut))
5391                        .on_action(cx.listener(Self::copy))
5392                        .on_action(cx.listener(Self::paste))
5393                        .on_action(cx.listener(Self::duplicate))
5394                        .on_click(cx.listener(|this, event: &gpui::ClickEvent, window, cx| {
5395                            if event.click_count() > 1
5396                                && let Some(entry_id) = this.last_worktree_root_id
5397                            {
5398                                let project = this.project.read(cx);
5399
5400                                let worktree_id = if let Some(worktree) =
5401                                    project.worktree_for_entry(entry_id, cx)
5402                                {
5403                                    worktree.read(cx).id()
5404                                } else {
5405                                    return;
5406                                };
5407
5408                                this.selection = Some(SelectedEntry {
5409                                    worktree_id,
5410                                    entry_id,
5411                                });
5412
5413                                this.new_file(&NewFile, window, cx);
5414                            }
5415                        }))
5416                })
5417                .when(project.is_local(), |el| {
5418                    el.on_action(cx.listener(Self::reveal_in_finder))
5419                        .on_action(cx.listener(Self::open_system))
5420                        .on_action(cx.listener(Self::open_in_terminal))
5421                })
5422                .when(project.is_via_remote_server(), |el| {
5423                    el.on_action(cx.listener(Self::open_in_terminal))
5424                })
5425                .on_mouse_down(
5426                    MouseButton::Right,
5427                    cx.listener(move |this, event: &MouseDownEvent, window, cx| {
5428                        // When deploying the context menu anywhere below the last project entry,
5429                        // act as if the user clicked the root of the last worktree.
5430                        if let Some(entry_id) = this.last_worktree_root_id {
5431                            this.deploy_context_menu(event.position, entry_id, window, cx);
5432                        }
5433                    }),
5434                )
5435                .track_focus(&self.focus_handle(cx))
5436                .child(
5437                    v_flex()
5438                        .child(
5439                            uniform_list("entries", item_count, {
5440                                cx.processor(|this, range: Range<usize>, window, cx| {
5441                                    let mut items = Vec::with_capacity(range.end - range.start);
5442                                    this.for_each_visible_entry(
5443                                        range,
5444                                        window,
5445                                        cx,
5446                                        |id, details, window, cx| {
5447                                            items.push(this.render_entry(id, details, window, cx));
5448                                        },
5449                                    );
5450                                    items
5451                                })
5452                            })
5453                            .when(show_indent_guides, |list| {
5454                                list.with_decoration(
5455                                    ui::indent_guides(
5456                                        px(indent_size),
5457                                        IndentGuideColors::panel(cx),
5458                                    )
5459                                    .with_compute_indents_fn(
5460                                        cx.entity(),
5461                                        |this, range, window, cx| {
5462                                            let mut items =
5463                                                SmallVec::with_capacity(range.end - range.start);
5464                                            this.iter_visible_entries(
5465                                                range,
5466                                                window,
5467                                                cx,
5468                                                |entry, _, entries, _, _| {
5469                                                    let (depth, _) =
5470                                                        Self::calculate_depth_and_difference(
5471                                                            entry, entries,
5472                                                        );
5473                                                    items.push(depth);
5474                                                },
5475                                            );
5476                                            items
5477                                        },
5478                                    )
5479                                    .on_click(cx.listener(
5480                                        |this,
5481                                         active_indent_guide: &IndentGuideLayout,
5482                                         window,
5483                                         cx| {
5484                                            if window.modifiers().secondary() {
5485                                                let ix = active_indent_guide.offset.y;
5486                                                let Some((target_entry, worktree)) = maybe!({
5487                                                    let (worktree_id, entry) =
5488                                                        this.entry_at_index(ix)?;
5489                                                    let worktree = this
5490                                                        .project
5491                                                        .read(cx)
5492                                                        .worktree_for_id(worktree_id, cx)?;
5493                                                    let target_entry = worktree
5494                                                        .read(cx)
5495                                                        .entry_for_path(&entry.path.parent()?)?;
5496                                                    Some((target_entry, worktree))
5497                                                }) else {
5498                                                    return;
5499                                                };
5500
5501                                                this.collapse_entry(
5502                                                    target_entry.clone(),
5503                                                    worktree,
5504                                                    cx,
5505                                                );
5506                                            }
5507                                        },
5508                                    ))
5509                                    .with_render_fn(
5510                                        cx.entity(),
5511                                        move |this, params, _, cx| {
5512                                            const LEFT_OFFSET: Pixels = px(14.);
5513                                            const PADDING_Y: Pixels = px(4.);
5514                                            const HITBOX_OVERDRAW: Pixels = px(3.);
5515
5516                                            let active_indent_guide_index = this
5517                                                .find_active_indent_guide(
5518                                                    &params.indent_guides,
5519                                                    cx,
5520                                                );
5521
5522                                            let indent_size = params.indent_size;
5523                                            let item_height = params.item_height;
5524
5525                                            params
5526                                                .indent_guides
5527                                                .into_iter()
5528                                                .enumerate()
5529                                                .map(|(idx, layout)| {
5530                                                    let offset = if layout.continues_offscreen {
5531                                                        px(0.)
5532                                                    } else {
5533                                                        PADDING_Y
5534                                                    };
5535                                                    let bounds = Bounds::new(
5536                                                        point(
5537                                                            layout.offset.x * indent_size
5538                                                                + LEFT_OFFSET,
5539                                                            layout.offset.y * item_height + offset,
5540                                                        ),
5541                                                        size(
5542                                                            px(1.),
5543                                                            layout.length * item_height
5544                                                                - offset * 2.,
5545                                                        ),
5546                                                    );
5547                                                    ui::RenderedIndentGuide {
5548                                                        bounds,
5549                                                        layout,
5550                                                        is_active: Some(idx)
5551                                                            == active_indent_guide_index,
5552                                                        hitbox: Some(Bounds::new(
5553                                                            point(
5554                                                                bounds.origin.x - HITBOX_OVERDRAW,
5555                                                                bounds.origin.y,
5556                                                            ),
5557                                                            size(
5558                                                                bounds.size.width
5559                                                                    + HITBOX_OVERDRAW * 2.,
5560                                                                bounds.size.height,
5561                                                            ),
5562                                                        )),
5563                                                    }
5564                                                })
5565                                                .collect()
5566                                        },
5567                                    ),
5568                                )
5569                            })
5570                            .when(show_sticky_entries, |list| {
5571                                let sticky_items = ui::sticky_items(
5572                                    cx.entity(),
5573                                    |this, range, window, cx| {
5574                                        let mut items =
5575                                            SmallVec::with_capacity(range.end - range.start);
5576                                        this.iter_visible_entries(
5577                                            range,
5578                                            window,
5579                                            cx,
5580                                            |entry, index, entries, _, _| {
5581                                                let (depth, _) =
5582                                                    Self::calculate_depth_and_difference(
5583                                                        entry, entries,
5584                                                    );
5585                                                let candidate =
5586                                                    StickyProjectPanelCandidate { index, depth };
5587                                                items.push(candidate);
5588                                            },
5589                                        );
5590                                        items
5591                                    },
5592                                    |this, marker_entry, window, cx| {
5593                                        let sticky_entries =
5594                                            this.render_sticky_entries(marker_entry, window, cx);
5595                                        this.sticky_items_count = sticky_entries.len();
5596                                        sticky_entries
5597                                    },
5598                                );
5599                                list.with_decoration(if show_indent_guides {
5600                                    sticky_items.with_decoration(
5601                                        ui::indent_guides(
5602                                            px(indent_size),
5603                                            IndentGuideColors::panel(cx),
5604                                        )
5605                                        .with_render_fn(
5606                                            cx.entity(),
5607                                            move |_, params, _, _| {
5608                                                const LEFT_OFFSET: Pixels = px(14.);
5609
5610                                                let indent_size = params.indent_size;
5611                                                let item_height = params.item_height;
5612
5613                                                params
5614                                                    .indent_guides
5615                                                    .into_iter()
5616                                                    .map(|layout| {
5617                                                        let bounds = Bounds::new(
5618                                                            point(
5619                                                                layout.offset.x * indent_size
5620                                                                    + LEFT_OFFSET,
5621                                                                layout.offset.y * item_height,
5622                                                            ),
5623                                                            size(
5624                                                                px(1.),
5625                                                                layout.length * item_height,
5626                                                            ),
5627                                                        );
5628                                                        ui::RenderedIndentGuide {
5629                                                            bounds,
5630                                                            layout,
5631                                                            is_active: false,
5632                                                            hitbox: None,
5633                                                        }
5634                                                    })
5635                                                    .collect()
5636                                            },
5637                                        ),
5638                                    )
5639                                } else {
5640                                    sticky_items
5641                                })
5642                            })
5643                            .with_sizing_behavior(ListSizingBehavior::Infer)
5644                            .with_horizontal_sizing_behavior(
5645                                ListHorizontalSizingBehavior::Unconstrained,
5646                            )
5647                            .with_width_from_item(self.max_width_item_index)
5648                            .track_scroll(self.scroll_handle.clone()),
5649                        )
5650                        .child(
5651                            div()
5652                                .block_mouse_except_scroll()
5653                                .flex_grow()
5654                                .when(
5655                                    self.drag_target_entry.as_ref().is_some_and(
5656                                        |entry| match entry {
5657                                            DragTarget::Background => true,
5658                                            DragTarget::Entry {
5659                                                highlight_entry_id, ..
5660                                            } => {
5661                                                self.last_worktree_root_id.is_some_and(|root_id| {
5662                                                    *highlight_entry_id == root_id
5663                                                })
5664                                            }
5665                                        },
5666                                    ),
5667                                    |div| div.bg(cx.theme().colors().drop_target_background),
5668                                )
5669                                .on_drag_move::<ExternalPaths>(cx.listener(
5670                                    move |this, event: &DragMoveEvent<ExternalPaths>, _, _| {
5671                                        let Some(_last_root_id) = this.last_worktree_root_id else {
5672                                            return;
5673                                        };
5674                                        if event.bounds.contains(&event.event.position) {
5675                                            this.drag_target_entry = Some(DragTarget::Background);
5676                                        } else {
5677                                            if this.drag_target_entry.as_ref().is_some_and(|e| {
5678                                                matches!(e, DragTarget::Background)
5679                                            }) {
5680                                                this.drag_target_entry = None;
5681                                            }
5682                                        }
5683                                    },
5684                                ))
5685                                .on_drag_move::<DraggedSelection>(cx.listener(
5686                                    move |this, event: &DragMoveEvent<DraggedSelection>, _, cx| {
5687                                        let Some(last_root_id) = this.last_worktree_root_id else {
5688                                            return;
5689                                        };
5690                                        if event.bounds.contains(&event.event.position) {
5691                                            let drag_state = event.drag(cx);
5692                                            if this.should_highlight_background_for_selection_drag(
5693                                                &drag_state,
5694                                                last_root_id,
5695                                                cx,
5696                                            ) {
5697                                                this.drag_target_entry =
5698                                                    Some(DragTarget::Background);
5699                                            }
5700                                        } else {
5701                                            if this.drag_target_entry.as_ref().is_some_and(|e| {
5702                                                matches!(e, DragTarget::Background)
5703                                            }) {
5704                                                this.drag_target_entry = None;
5705                                            }
5706                                        }
5707                                    },
5708                                ))
5709                                .on_drop(cx.listener(
5710                                    move |this, external_paths: &ExternalPaths, window, cx| {
5711                                        this.drag_target_entry = None;
5712                                        this.hover_scroll_task.take();
5713                                        if let Some(entry_id) = this.last_worktree_root_id {
5714                                            this.drop_external_files(
5715                                                external_paths.paths(),
5716                                                entry_id,
5717                                                window,
5718                                                cx,
5719                                            );
5720                                        }
5721                                        cx.stop_propagation();
5722                                    },
5723                                ))
5724                                .on_drop(cx.listener(
5725                                    move |this, selections: &DraggedSelection, window, cx| {
5726                                        this.drag_target_entry = None;
5727                                        this.hover_scroll_task.take();
5728                                        if let Some(entry_id) = this.last_worktree_root_id {
5729                                            this.drag_onto(selections, entry_id, false, window, cx);
5730                                        }
5731                                        cx.stop_propagation();
5732                                    },
5733                                )),
5734                        )
5735                        .size_full(),
5736                )
5737                .children(self.render_vertical_scrollbar(cx))
5738                .when_some(self.render_horizontal_scrollbar(cx), |this, scrollbar| {
5739                    this.pb_4().child(scrollbar)
5740                })
5741                .children(self.context_menu.as_ref().map(|(menu, position, _)| {
5742                    deferred(
5743                        anchored()
5744                            .position(*position)
5745                            .anchor(gpui::Corner::TopLeft)
5746                            .child(menu.clone()),
5747                    )
5748                    .with_priority(3)
5749                }))
5750        } else {
5751            let focus_handle = self.focus_handle(cx);
5752
5753            v_flex()
5754                .id("empty-project_panel")
5755                .p_4()
5756                .size_full()
5757                .items_center()
5758                .justify_center()
5759                .gap_1()
5760                .track_focus(&self.focus_handle(cx))
5761                .child(
5762                    Button::new("open_project", "Open Project")
5763                        .full_width()
5764                        .key_binding(KeyBinding::for_action_in(
5765                            &workspace::Open,
5766                            &focus_handle,
5767                            window,
5768                            cx,
5769                        ))
5770                        .on_click(cx.listener(|this, _, window, cx| {
5771                            this.workspace
5772                                .update(cx, |_, cx| {
5773                                    window.dispatch_action(workspace::Open.boxed_clone(), cx);
5774                                })
5775                                .log_err();
5776                        })),
5777                )
5778                .child(
5779                    h_flex()
5780                        .w_1_2()
5781                        .gap_2()
5782                        .child(Divider::horizontal())
5783                        .child(Label::new("or").size(LabelSize::XSmall).color(Color::Muted))
5784                        .child(Divider::horizontal()),
5785                )
5786                .child(
5787                    Button::new("clone_repo", "Clone Repository")
5788                        .full_width()
5789                        .on_click(cx.listener(|this, _, window, cx| {
5790                            this.workspace
5791                                .update(cx, |_, cx| {
5792                                    window.dispatch_action(git::Clone.boxed_clone(), cx);
5793                                })
5794                                .log_err();
5795                        })),
5796                )
5797                .when(is_local, |div| {
5798                    div.when(panel_settings.drag_and_drop, |div| {
5799                        div.drag_over::<ExternalPaths>(|style, _, _, cx| {
5800                            style.bg(cx.theme().colors().drop_target_background)
5801                        })
5802                        .on_drop(cx.listener(
5803                            move |this, external_paths: &ExternalPaths, window, cx| {
5804                                this.drag_target_entry = None;
5805                                this.hover_scroll_task.take();
5806                                if let Some(task) = this
5807                                    .workspace
5808                                    .update(cx, |workspace, cx| {
5809                                        workspace.open_workspace_for_paths(
5810                                            true,
5811                                            external_paths.paths().to_owned(),
5812                                            window,
5813                                            cx,
5814                                        )
5815                                    })
5816                                    .log_err()
5817                                {
5818                                    task.detach_and_log_err(cx);
5819                                }
5820                                cx.stop_propagation();
5821                            },
5822                        ))
5823                    })
5824                })
5825        }
5826    }
5827}
5828
5829impl Render for DraggedProjectEntryView {
5830    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
5831        let ui_font = ThemeSettings::get_global(cx).ui_font.clone();
5832        h_flex()
5833            .font(ui_font)
5834            .pl(self.click_offset.x + px(12.))
5835            .pt(self.click_offset.y + px(12.))
5836            .child(
5837                div()
5838                    .flex()
5839                    .gap_1()
5840                    .items_center()
5841                    .py_1()
5842                    .px_2()
5843                    .rounded_lg()
5844                    .bg(cx.theme().colors().background)
5845                    .map(|this| {
5846                        if self.selections.len() > 1 && self.selections.contains(&self.selection) {
5847                            this.child(Label::new(format!("{} entries", self.selections.len())))
5848                        } else {
5849                            this.child(if let Some(icon) = &self.details.icon {
5850                                div().child(Icon::from_path(icon.clone()))
5851                            } else {
5852                                div()
5853                            })
5854                            .child(Label::new(self.details.filename.clone()))
5855                        }
5856                    }),
5857            )
5858    }
5859}
5860
5861impl EventEmitter<Event> for ProjectPanel {}
5862
5863impl EventEmitter<PanelEvent> for ProjectPanel {}
5864
5865impl Panel for ProjectPanel {
5866    fn position(&self, _: &Window, cx: &App) -> DockPosition {
5867        match ProjectPanelSettings::get_global(cx).dock {
5868            ProjectPanelDockPosition::Left => DockPosition::Left,
5869            ProjectPanelDockPosition::Right => DockPosition::Right,
5870        }
5871    }
5872
5873    fn position_is_valid(&self, position: DockPosition) -> bool {
5874        matches!(position, DockPosition::Left | DockPosition::Right)
5875    }
5876
5877    fn set_position(&mut self, position: DockPosition, _: &mut Window, cx: &mut Context<Self>) {
5878        settings::update_settings_file::<ProjectPanelSettings>(
5879            self.fs.clone(),
5880            cx,
5881            move |settings, _| {
5882                let dock = match position {
5883                    DockPosition::Left | DockPosition::Bottom => ProjectPanelDockPosition::Left,
5884                    DockPosition::Right => ProjectPanelDockPosition::Right,
5885                };
5886                settings.dock = Some(dock);
5887            },
5888        );
5889    }
5890
5891    fn size(&self, _: &Window, cx: &App) -> Pixels {
5892        self.width
5893            .unwrap_or_else(|| ProjectPanelSettings::get_global(cx).default_width)
5894    }
5895
5896    fn set_size(&mut self, size: Option<Pixels>, window: &mut Window, cx: &mut Context<Self>) {
5897        self.width = size;
5898        cx.notify();
5899        cx.defer_in(window, |this, _, cx| {
5900            this.serialize(cx);
5901        });
5902    }
5903
5904    fn icon(&self, _: &Window, cx: &App) -> Option<IconName> {
5905        ProjectPanelSettings::get_global(cx)
5906            .button
5907            .then_some(IconName::FileTree)
5908    }
5909
5910    fn icon_tooltip(&self, _window: &Window, _cx: &App) -> Option<&'static str> {
5911        Some("Project Panel")
5912    }
5913
5914    fn toggle_action(&self) -> Box<dyn Action> {
5915        Box::new(ToggleFocus)
5916    }
5917
5918    fn persistent_name() -> &'static str {
5919        "Project Panel"
5920    }
5921
5922    fn starts_open(&self, _: &Window, cx: &App) -> bool {
5923        if !ProjectPanelSettings::get_global(cx).starts_open {
5924            return false;
5925        }
5926
5927        let project = &self.project.read(cx);
5928        project.visible_worktrees(cx).any(|tree| {
5929            tree.read(cx)
5930                .root_entry()
5931                .is_some_and(|entry| entry.is_dir())
5932        })
5933    }
5934
5935    fn activation_priority(&self) -> u32 {
5936        0
5937    }
5938}
5939
5940impl Focusable for ProjectPanel {
5941    fn focus_handle(&self, _cx: &App) -> FocusHandle {
5942        self.focus_handle.clone()
5943    }
5944}
5945
5946impl ClipboardEntry {
5947    fn is_cut(&self) -> bool {
5948        matches!(self, Self::Cut { .. })
5949    }
5950
5951    fn items(&self) -> &BTreeSet<SelectedEntry> {
5952        match self {
5953            ClipboardEntry::Copied(entries) | ClipboardEntry::Cut(entries) => entries,
5954        }
5955    }
5956
5957    fn into_copy_entry(self) -> Self {
5958        match self {
5959            ClipboardEntry::Copied(_) => self,
5960            ClipboardEntry::Cut(entries) => ClipboardEntry::Copied(entries),
5961        }
5962    }
5963}
5964
5965#[cfg(test)]
5966mod project_panel_tests;