pub mod project_panel_settings;
mod undo;
mod utils;

use anyhow::{Context as _, Result};
use client::{ErrorCode, ErrorExt};
use collections::{BTreeSet, HashMap, hash_map};
use command_palette_hooks::CommandPaletteFilter;
use editor::{
    Editor, EditorEvent, MultiBufferOffset,
    items::{
        entry_diagnostic_aware_icon_decoration_and_color,
        entry_diagnostic_aware_icon_name_and_color, entry_git_aware_label_color,
    },
};
use feature_flags::{FeatureFlagAppExt, ProjectPanelUndoRedoFeatureFlag};
use file_icons::FileIcons;
use git;
use git::status::GitSummary;
use git_ui;
use git_ui::file_diff_view::FileDiffView;
use gpui::{
    Action, AnyElement, App, AsyncWindowContext, Bounds, ClipboardEntry as GpuiClipboardEntry,
    ClipboardItem, Context, CursorStyle, DismissEvent, Div, DragMoveEvent, Entity, EventEmitter,
    ExternalPaths, FocusHandle, Focusable, FontWeight, Hsla, InteractiveElement, KeyContext,
    ListHorizontalSizingBehavior, ListSizingBehavior, Modifiers, ModifiersChangedEvent,
    MouseButton, MouseDownEvent, ParentElement, PathPromptOptions, Pixels, Point, PromptLevel,
    Render, ScrollStrategy, Stateful, Styled, Subscription, Task, UniformListScrollHandle,
    WeakEntity, Window, actions, anchored, deferred, div, hsla, linear_color_stop, linear_gradient,
    point, px, size, transparent_white, uniform_list,
};
use language::DiagnosticSeverity;
use menu::{Confirm, SelectFirst, SelectLast, SelectNext, SelectPrevious};
use notifications::status_toast::{StatusToast, ToastIcon};
use project::{
    Entry, EntryKind, Fs, GitEntry, GitEntryRef, GitTraversal, Project, ProjectEntryId,
    ProjectPath, Worktree, WorktreeId,
    git_store::{GitStoreEvent, RepositoryEvent, git_traversal::ChildEntriesGitIter},
    project_settings::GoToDiagnosticSeverityFilter,
};
use project_panel_settings::ProjectPanelSettings;
use rayon::slice::ParallelSliceMut;
use schemars::JsonSchema;
use serde::Deserialize;
use settings::{
    DockSide, ProjectPanelEntrySpacing, Settings, SettingsStore, ShowDiagnostics, ShowIndentGuides,
    update_settings_file,
};
use smallvec::SmallVec;
use std::{
    any::TypeId,
    cell::OnceCell,
    cmp,
    collections::HashSet,
    ops::Neg,
    ops::Range,
    path::{Path, PathBuf},
    sync::Arc,
    time::{Duration, Instant},
};
use theme_settings::ThemeSettings;
use ui::{
    Color, ContextMenu, ContextMenuEntry, DecoratedIcon, Divider, Icon, IconDecoration,
    IconDecorationKind, IndentGuideColors, IndentGuideLayout, Indicator, KeyBinding, Label,
    LabelSize, ListItem, ListItemSpacing, ScrollAxes, ScrollableHandle, Scrollbars,
    StickyCandidate, Tooltip, WithScrollbar, prelude::*, v_flex,
};
use util::{
    ResultExt, TakeUntilExt, TryFutureExt, maybe,
    paths::{PathStyle, compare_paths},
    rel_path::{RelPath, RelPathBuf},
};
use workspace::{
    DraggedSelection, OpenInTerminal, OpenMode, OpenOptions, OpenVisible, PreviewTabsSettings,
    SelectedEntry, SplitDirection, Workspace,
    dock::{DockPosition, Panel, PanelEvent},
    notifications::{DetachAndPromptErr, NotifyResultExt, NotifyTaskExt},
};
use worktree::CreatedEntry;
use zed_actions::{
    project_panel::{Toggle, ToggleFocus},
    workspace::OpenWithSystem,
};

use crate::{
    project_panel_settings::ProjectPanelScrollbarProxy,
    undo::{Change, UndoManager},
};

const PROJECT_PANEL_KEY: &str = "ProjectPanel";
const NEW_ENTRY_ID: ProjectEntryId = ProjectEntryId::MAX;

struct VisibleEntriesForWorktree {
    worktree_id: WorktreeId,
    entries: Vec<GitEntry>,
    index: OnceCell<HashSet<Arc<RelPath>>>,
}

struct State {
    last_worktree_root_id: Option<ProjectEntryId>,
    /// Maps from leaf project entry ID to the currently selected ancestor.
    /// Relevant only for auto-fold dirs, where a single project panel entry may actually consist of several
    /// project entries (and all non-leaf nodes are guaranteed to be directories).
    ancestors: HashMap<ProjectEntryId, FoldedAncestors>,
    visible_entries: Vec<VisibleEntriesForWorktree>,
    max_width_item_index: Option<usize>,
    edit_state: Option<EditState>,
    temporarily_unfolded_pending_state: Option<TemporaryUnfoldedPendingState>,
    unfolded_dir_ids: HashSet<ProjectEntryId>,
    expanded_dir_ids: HashMap<WorktreeId, Vec<ProjectEntryId>>,
}

impl State {
    fn is_unfolded(&self, entry_id: &ProjectEntryId) -> bool {
        self.unfolded_dir_ids.contains(entry_id)
            || self.edit_state.as_ref().map_or(false, |edit_state| {
                edit_state.temporarily_unfolded == Some(*entry_id)
            })
    }

    fn derive(old: &Self) -> Self {
        Self {
            last_worktree_root_id: None,
            ancestors: Default::default(),
            visible_entries: Default::default(),
            max_width_item_index: None,
            edit_state: old.edit_state.clone(),
            temporarily_unfolded_pending_state: None,
            unfolded_dir_ids: old.unfolded_dir_ids.clone(),
            expanded_dir_ids: old.expanded_dir_ids.clone(),
        }
    }
}

pub struct ProjectPanel {
    project: Entity<Project>,
    fs: Arc<dyn Fs>,
    focus_handle: FocusHandle,
    scroll_handle: UniformListScrollHandle,
    // An update loop that keeps incrementing/decrementing scroll offset while there is a dragged entry that's
    // hovered over the start/end of a list.
    hover_scroll_task: Option<Task<()>>,
    rendered_entries_len: usize,
    folded_directory_drag_target: Option<FoldedDirectoryDragTarget>,
    drag_target_entry: Option<DragTarget>,
    marked_entries: Vec<SelectedEntry>,
    selection: Option<SelectedEntry>,
    context_menu: Option<(Entity<ContextMenu>, Point<Pixels>, Subscription)>,
    filename_editor: Entity<Editor>,
    clipboard: Option<ClipboardEntry>,
    _dragged_entry_destination: Option<Arc<Path>>,
    workspace: WeakEntity<Workspace>,
    diagnostics: HashMap<(WorktreeId, Arc<RelPath>), DiagnosticSeverity>,
    diagnostic_counts: HashMap<(WorktreeId, Arc<RelPath>), DiagnosticCount>,
    diagnostic_summary_update: Task<()>,
    // We keep track of the mouse down state on entries so we don't flash the UI
    // in case a user clicks to open a file.
    mouse_down: bool,
    hover_expand_task: Option<Task<()>>,
    previous_drag_position: Option<Point<Pixels>>,
    sticky_items_count: usize,
    last_reported_update: Instant,
    update_visible_entries_task: UpdateVisibleEntriesTask,
    undo_manager: UndoManager,
    state: State,
}

struct UpdateVisibleEntriesTask {
    _visible_entries_task: Task<()>,
    focus_filename_editor: bool,
    autoscroll: bool,
}

#[derive(Debug)]
struct TemporaryUnfoldedPendingState {
    previously_focused_leaf_entry: SelectedEntry,
    temporarily_unfolded_active_entry_id: ProjectEntryId,
}

impl Default for UpdateVisibleEntriesTask {
    fn default() -> Self {
        UpdateVisibleEntriesTask {
            _visible_entries_task: Task::ready(()),
            focus_filename_editor: Default::default(),
            autoscroll: Default::default(),
        }
    }
}

enum DragTarget {
    /// Dragging on an entry
    Entry {
        /// The entry currently under the mouse cursor during a drag operation
        entry_id: ProjectEntryId,
        /// Highlight this entry along with all of its children
        highlight_entry_id: ProjectEntryId,
    },
    /// Dragging on background
    Background,
}

#[derive(Copy, Clone, Debug)]
struct FoldedDirectoryDragTarget {
    entry_id: ProjectEntryId,
    index: usize,
    /// Whether we are dragging over the delimiter rather than the component itself.
    is_delimiter_target: bool,
}

#[derive(Clone, Debug)]
enum ValidationState {
    None,
    Warning(String),
    Error(String),
}

#[derive(Clone, Debug)]
struct EditState {
    worktree_id: WorktreeId,
    entry_id: ProjectEntryId,
    leaf_entry_id: Option<ProjectEntryId>,
    is_dir: bool,
    depth: usize,
    processing_filename: Option<Arc<RelPath>>,
    previously_focused: Option<SelectedEntry>,
    validation_state: ValidationState,
    temporarily_unfolded: Option<ProjectEntryId>,
}

impl EditState {
    fn is_new_entry(&self) -> bool {
        self.leaf_entry_id.is_none()
    }
}

#[derive(Clone, Debug)]
enum ClipboardEntry {
    Copied(BTreeSet<SelectedEntry>),
    Cut(BTreeSet<SelectedEntry>),
}

#[derive(Debug, Default, PartialEq, Eq, Clone, Copy)]
struct DiagnosticCount {
    error_count: usize,
    warning_count: usize,
}

impl DiagnosticCount {
    fn capped_error_count(&self) -> String {
        Self::capped_count(self.error_count)
    }

    fn capped_warning_count(&self) -> String {
        Self::capped_count(self.warning_count)
    }

    fn capped_count(count: usize) -> String {
        if count > 99 {
            "99+".to_string()
        } else {
            count.to_string()
        }
    }
}

#[derive(Debug, PartialEq, Eq, Clone)]
struct EntryDetails {
    filename: String,
    icon: Option<SharedString>,
    path: Arc<RelPath>,
    depth: usize,
    kind: EntryKind,
    is_ignored: bool,
    is_expanded: bool,
    is_selected: bool,
    is_marked: bool,
    is_editing: bool,
    is_processing: bool,
    is_cut: bool,
    sticky: Option<StickyDetails>,
    filename_text_color: Color,
    diagnostic_severity: Option<DiagnosticSeverity>,
    diagnostic_count: Option<DiagnosticCount>,
    git_status: GitSummary,
    is_private: bool,
    worktree_id: WorktreeId,
    canonical_path: Option<Arc<Path>>,
}

#[derive(Debug, PartialEq, Eq, Clone)]
struct StickyDetails {
    sticky_index: usize,
}

/// Permanently deletes the selected file or directory.
#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
#[action(namespace = project_panel)]
#[serde(deny_unknown_fields)]
struct Delete {
    #[serde(default)]
    pub skip_prompt: bool,
}

/// Moves the selected file or directory to the system trash.
#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
#[action(namespace = project_panel)]
#[serde(deny_unknown_fields)]
struct Trash {
    #[serde(default)]
    pub skip_prompt: bool,
}

/// Selects the next entry with diagnostics.
#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
#[action(namespace = project_panel)]
#[serde(deny_unknown_fields)]
struct SelectNextDiagnostic {
    #[serde(default)]
    pub severity: GoToDiagnosticSeverityFilter,
}

/// Selects the previous entry with diagnostics.
#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
#[action(namespace = project_panel)]
#[serde(deny_unknown_fields)]
struct SelectPrevDiagnostic {
    #[serde(default)]
    pub severity: GoToDiagnosticSeverityFilter,
}

actions!(
    project_panel,
    [
        /// Expands the selected entry in the project tree.
        ExpandSelectedEntry,
        /// Collapses the selected entry in the project tree.
        CollapseSelectedEntry,
        /// Collapses the selected entry and its children in the project tree.
        CollapseSelectedEntryAndChildren,
        /// Collapses all entries in the project tree.
        CollapseAllEntries,
        /// Creates a new directory.
        NewDirectory,
        /// Creates a new file.
        NewFile,
        /// Copies the selected file or directory.
        Copy,
        /// Duplicates the selected file or directory.
        Duplicate,
        /// Reveals the selected item in the system file manager.
        RevealInFileManager,
        /// Removes the selected folder from the project.
        RemoveFromProject,
        /// Cuts the selected file or directory.
        Cut,
        /// Pastes the previously cut or copied item.
        Paste,
        /// Downloads the selected remote file
        DownloadFromRemote,
        /// Renames the selected file or directory.
        Rename,
        /// Opens the selected file in the editor.
        Open,
        /// Opens the selected file in a permanent tab.
        OpenPermanent,
        /// Opens the selected file in a vertical split.
        OpenSplitVertical,
        /// Opens the selected file in a horizontal split.
        OpenSplitHorizontal,
        /// Toggles visibility of git-ignored files.
        ToggleHideGitIgnore,
        /// Toggles visibility of hidden files.
        ToggleHideHidden,
        /// Starts a new search in the selected directory.
        NewSearchInDirectory,
        /// Unfolds the selected directory.
        UnfoldDirectory,
        /// Folds the selected directory.
        FoldDirectory,
        /// Scroll half a page upwards
        ScrollUp,
        /// Scroll half a page downwards
        ScrollDown,
        /// Scroll until the cursor displays at the center
        ScrollCursorCenter,
        /// Scroll until the cursor displays at the top
        ScrollCursorTop,
        /// Scroll until the cursor displays at the bottom
        ScrollCursorBottom,
        /// Selects the parent directory.
        SelectParent,
        /// Selects the next entry with git changes.
        SelectNextGitEntry,
        /// Selects the previous entry with git changes.
        SelectPrevGitEntry,
        /// Selects the next directory.
        SelectNextDirectory,
        /// Selects the previous directory.
        SelectPrevDirectory,
        /// Opens a diff view to compare two marked files.
        CompareMarkedFiles,
        /// Undoes the last file operation.
        Undo,
        /// Redoes the last undone file operation.
        Redo,
    ]
);

#[derive(Clone, Debug, Default)]
struct FoldedAncestors {
    current_ancestor_depth: usize,
    ancestors: Vec<ProjectEntryId>,
}

impl FoldedAncestors {
    fn max_ancestor_depth(&self) -> usize {
        self.ancestors.len()
    }

    /// Note: This returns None for last item in ancestors list
    fn active_ancestor(&self) -> Option<ProjectEntryId> {
        if self.current_ancestor_depth == 0 {
            return None;
        }
        self.ancestors.get(self.current_ancestor_depth).copied()
    }

    fn active_index(&self) -> usize {
        self.max_ancestor_depth()
            .saturating_sub(1)
            .saturating_sub(self.current_ancestor_depth)
    }

    fn set_active_index(&mut self, index: usize) -> bool {
        let new_depth = self
            .max_ancestor_depth()
            .saturating_sub(1)
            .saturating_sub(index);
        if self.current_ancestor_depth != new_depth {
            self.current_ancestor_depth = new_depth;
            true
        } else {
            false
        }
    }

    fn active_component(&self, file_name: &str) -> Option<String> {
        Path::new(file_name)
            .components()
            .nth(self.active_index())
            .map(|comp| comp.as_os_str().to_string_lossy().into_owned())
    }
}

pub fn init(cx: &mut App) {
    cx.observe_new(|workspace: &mut Workspace, _, _| {
        workspace.register_action(|workspace, _: &ToggleFocus, window, cx| {
            workspace.toggle_panel_focus::<ProjectPanel>(window, cx);
        });
        workspace.register_action(|workspace, _: &Toggle, window, cx| {
            if !workspace.toggle_panel_focus::<ProjectPanel>(window, cx) {
                workspace.close_panel::<ProjectPanel>(window, cx);
            }
        });

        workspace.register_action(|workspace, _: &ToggleHideGitIgnore, _, cx| {
            let fs = workspace.app_state().fs.clone();
            update_settings_file(fs, cx, move |setting, _| {
                setting.project_panel.get_or_insert_default().hide_gitignore = Some(
                    !setting
                        .project_panel
                        .get_or_insert_default()
                        .hide_gitignore
                        .unwrap_or(false),
                );
            })
        });

        workspace.register_action(|workspace, _: &ToggleHideHidden, _, cx| {
            let fs = workspace.app_state().fs.clone();
            update_settings_file(fs, cx, move |setting, _| {
                setting.project_panel.get_or_insert_default().hide_hidden = Some(
                    !setting
                        .project_panel
                        .get_or_insert_default()
                        .hide_hidden
                        .unwrap_or(false),
                );
            })
        });

        workspace.register_action(|workspace, action: &CollapseAllEntries, window, cx| {
            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
                panel.update(cx, |panel, cx| {
                    panel.collapse_all_entries(action, window, cx);
                });
            }
        });

        workspace.register_action(|workspace, action: &Rename, window, cx| {
            workspace.open_panel::<ProjectPanel>(window, cx);
            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
                panel.update(cx, |panel, cx| {
                    if let Some(first_marked) = panel.marked_entries.first() {
                        let first_marked = *first_marked;
                        panel.marked_entries.clear();
                        panel.selection = Some(first_marked);
                    }
                    panel.rename(action, window, cx);
                });
            }
        });

        workspace.register_action(|workspace, action: &Duplicate, window, cx| {
            workspace.open_panel::<ProjectPanel>(window, cx);
            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
                panel.update(cx, |panel, cx| {
                    panel.duplicate(action, window, cx);
                });
            }
        });

        workspace.register_action(|workspace, action: &Delete, window, cx| {
            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
                panel.update(cx, |panel, cx| panel.delete(action, window, cx));
            }
        });

        workspace.register_action(|workspace, _: &git::FileHistory, window, cx| {
            // First try to get from project panel if it's focused
            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
                let maybe_project_path = panel.read(cx).selection.and_then(|selection| {
                    let project = workspace.project().read(cx);
                    let worktree = project.worktree_for_id(selection.worktree_id, cx)?;
                    let entry = worktree.read(cx).entry_for_id(selection.entry_id)?;
                    if entry.is_file() {
                        Some(ProjectPath {
                            worktree_id: selection.worktree_id,
                            path: entry.path.clone(),
                        })
                    } else {
                        None
                    }
                });

                if let Some(project_path) = maybe_project_path {
                    let project = workspace.project();
                    let git_store = project.read(cx).git_store();
                    if let Some((repo, repo_path)) = git_store
                        .read(cx)
                        .repository_and_path_for_project_path(&project_path, cx)
                    {
                        git_ui::file_history_view::FileHistoryView::open(
                            repo_path,
                            git_store.downgrade(),
                            repo.downgrade(),
                            workspace.weak_handle(),
                            window,
                            cx,
                        );
                        return;
                    }
                }
            }

            // Fallback: try to get from active editor
            if let Some(active_item) = workspace.active_item(cx)
                && let Some(editor) = active_item.downcast::<Editor>()
                && let Some(buffer) = editor.read(cx).buffer().read(cx).as_singleton()
                && let Some(file) = buffer.read(cx).file()
            {
                let worktree_id = file.worktree_id(cx);
                let project_path = ProjectPath {
                    worktree_id,
                    path: file.path().clone(),
                };
                let project = workspace.project();
                let git_store = project.read(cx).git_store();
                if let Some((repo, repo_path)) = git_store
                    .read(cx)
                    .repository_and_path_for_project_path(&project_path, cx)
                {
                    git_ui::file_history_view::FileHistoryView::open(
                        repo_path,
                        git_store.downgrade(),
                        repo.downgrade(),
                        workspace.weak_handle(),
                        window,
                        cx,
                    );
                }
            }
        });
    })
    .detach();
}

#[derive(Debug)]
pub enum Event {
    OpenedEntry {
        entry_id: ProjectEntryId,
        focus_opened_item: bool,
        allow_preview: bool,
    },
    SplitEntry {
        entry_id: ProjectEntryId,
        allow_preview: bool,
        split_direction: Option<SplitDirection>,
    },
    Focus,
}

struct DraggedProjectEntryView {
    selection: SelectedEntry,
    icon: Option<SharedString>,
    filename: String,
    click_offset: Point<Pixels>,
    selections: Arc<[SelectedEntry]>,
}

struct ItemColors {
    default: Hsla,
    hover: Hsla,
    drag_over: Hsla,
    marked: Hsla,
    focused: Hsla,
}

fn get_item_color(is_sticky: bool, cx: &App) -> ItemColors {
    let colors = cx.theme().colors();

    ItemColors {
        default: if is_sticky {
            colors.panel_overlay_background
        } else {
            colors.panel_background
        },
        hover: if is_sticky {
            colors.panel_overlay_hover
        } else {
            colors.element_hover
        },
        marked: colors.element_selected,
        focused: colors.panel_focused_border,
        drag_over: colors.drop_target_background,
    }
}

impl ProjectPanel {
    fn new(
        workspace: &mut Workspace,
        window: &mut Window,
        cx: &mut Context<Workspace>,
    ) -> Entity<Self> {
        let project = workspace.project().clone();
        let git_store = project.read(cx).git_store().clone();
        let path_style = project.read(cx).path_style(cx);
        let project_panel = cx.new(|cx| {
            let focus_handle = cx.focus_handle();
            cx.on_focus(&focus_handle, window, Self::focus_in).detach();

            cx.subscribe_in(
                &git_store,
                window,
                |this, _, event, window, cx| match event {
                    GitStoreEvent::RepositoryUpdated(_, RepositoryEvent::StatusesChanged, _)
                    | GitStoreEvent::RepositoryAdded
                    | GitStoreEvent::RepositoryRemoved(_) => {
                        this.update_visible_entries(None, false, false, window, cx);
                        cx.notify();
                    }
                    _ => {}
                },
            )
            .detach();

            cx.subscribe_in(
                &project,
                window,
                |this, project, event, window, cx| match event {
                    project::Event::ActiveEntryChanged(Some(entry_id)) => {
                        if ProjectPanelSettings::get_global(cx).auto_reveal_entries {
                            this.reveal_entry(project.clone(), *entry_id, true, window, cx)
                                .ok();
                        }
                    }
                    project::Event::ActiveEntryChanged(None) => {
                        let is_active_item_file_diff_view = this
                            .workspace
                            .upgrade()
                            .and_then(|ws| ws.read(cx).active_item(cx))
                            .map(|item| {
                                item.act_as_type(TypeId::of::<FileDiffView>(), cx).is_some()
                            })
                            .unwrap_or(false);
                        if !is_active_item_file_diff_view {
                            this.marked_entries.clear();
                        }
                    }
                    project::Event::RevealInProjectPanel(entry_id) => {
                        if let Some(()) = this
                            .reveal_entry(project.clone(), *entry_id, false, window, cx)
                            .log_err()
                        {
                            cx.emit(PanelEvent::Activate);
                        }
                    }
                    project::Event::ActivateProjectPanel => {
                        cx.emit(PanelEvent::Activate);
                    }
                    project::Event::DiskBasedDiagnosticsFinished { .. }
                    | project::Event::DiagnosticsUpdated { .. } => {
                        if ProjectPanelSettings::get_global(cx).show_diagnostics
                            != ShowDiagnostics::Off
                        {
                            this.diagnostic_summary_update = cx.spawn(async move |this, cx| {
                                cx.background_executor()
                                    .timer(Duration::from_millis(30))
                                    .await;
                                this.update(cx, |this, cx| {
                                    this.update_diagnostics(cx);
                                    cx.notify();
                                })
                                .log_err();
                            });
                        }
                    }
                    project::Event::WorktreeRemoved(id) => {
                        this.state.expanded_dir_ids.remove(id);
                        this.update_visible_entries(None, false, false, window, cx);
                        cx.notify();
                    }
                    project::Event::WorktreeUpdatedEntries(_, _)
                    | project::Event::WorktreeAdded(_)
                    | project::Event::WorktreeOrderChanged => {
                        this.update_visible_entries(None, false, false, window, cx);
                        cx.notify();
                    }
                    project::Event::ExpandedAllForEntry(worktree_id, entry_id) => {
                        if let Some((worktree, expanded_dir_ids)) = project
                            .read(cx)
                            .worktree_for_id(*worktree_id, cx)
                            .zip(this.state.expanded_dir_ids.get_mut(worktree_id))
                        {
                            let worktree = worktree.read(cx);

                            let Some(entry) = worktree.entry_for_id(*entry_id) else {
                                return;
                            };
                            let include_ignored_dirs = !entry.is_ignored;

                            let mut dirs_to_expand = vec![*entry_id];
                            while let Some(current_id) = dirs_to_expand.pop() {
                                let Some(current_entry) = worktree.entry_for_id(current_id) else {
                                    continue;
                                };
                                for child in worktree.child_entries(&current_entry.path) {
                                    if !child.is_dir() || (include_ignored_dirs && child.is_ignored)
                                    {
                                        continue;
                                    }

                                    dirs_to_expand.push(child.id);

                                    if let Err(ix) = expanded_dir_ids.binary_search(&child.id) {
                                        expanded_dir_ids.insert(ix, child.id);
                                    }
                                    this.state.unfolded_dir_ids.insert(child.id);
                                }
                            }
                            this.update_visible_entries(None, false, false, window, cx);
                            cx.notify();
                        }
                    }
                    _ => {}
                },
            )
            .detach();

            let trash_action = [TypeId::of::<Trash>()];
            let is_remote = project.read(cx).is_remote();

            // Make sure the trash option is never displayed anywhere on remote
            // hosts since they may not support trashing. May want to dynamically
            // detect this in the future.
            if is_remote {
                CommandPaletteFilter::update_global(cx, |filter, _cx| {
                    filter.hide_action_types(&trash_action);
                });
            }

            let filename_editor = cx.new(|cx| Editor::single_line(window, cx));

            cx.subscribe_in(
                &filename_editor,
                window,
                |project_panel, _, editor_event, window, cx| match editor_event {
                    EditorEvent::BufferEdited => {
                        project_panel.populate_validation_error(cx);
                        project_panel.autoscroll(cx);
                    }
                    EditorEvent::SelectionsChanged { .. } => {
                        project_panel.autoscroll(cx);
                    }
                    EditorEvent::Blurred => {
                        if project_panel
                            .state
                            .edit_state
                            .as_ref()
                            .is_some_and(|state| state.processing_filename.is_none())
                        {
                            match project_panel.confirm_edit(false, window, cx) {
                                Some(task) => {
                                    task.detach_and_notify_err(
                                        project_panel.workspace.clone(),
                                        window,
                                        cx,
                                    );
                                }
                                None => {
                                    project_panel.discard_edit_state(window, cx);
                                }
                            }
                        }
                    }
                    _ => {}
                },
            )
            .detach();

            cx.observe_global::<FileIcons>(|_, cx| {
                cx.notify();
            })
            .detach();

            let mut project_panel_settings = *ProjectPanelSettings::get_global(cx);
            cx.observe_global_in::<SettingsStore>(window, move |this, window, cx| {
                let new_settings = *ProjectPanelSettings::get_global(cx);
                if project_panel_settings != new_settings {
                    if project_panel_settings.hide_gitignore != new_settings.hide_gitignore {
                        this.update_visible_entries(None, false, false, window, cx);
                    }
                    if project_panel_settings.hide_root != new_settings.hide_root {
                        this.update_visible_entries(None, false, false, window, cx);
                    }
                    if project_panel_settings.hide_hidden != new_settings.hide_hidden {
                        this.update_visible_entries(None, false, false, window, cx);
                    }
                    if project_panel_settings.sort_mode != new_settings.sort_mode {
                        this.update_visible_entries(None, false, false, window, cx);
                    }
                    if project_panel_settings.sort_order != new_settings.sort_order {
                        this.update_visible_entries(None, false, false, window, cx);
                    }
                    if project_panel_settings.sticky_scroll && !new_settings.sticky_scroll {
                        this.sticky_items_count = 0;
                    }
                    project_panel_settings = new_settings;
                    this.update_diagnostics(cx);
                    cx.notify();
                }
            })
            .detach();

            let scroll_handle = UniformListScrollHandle::new();
            let weak_project_panel = cx.weak_entity();
            let mut this = Self {
                project: project.clone(),
                hover_scroll_task: None,
                fs: workspace.app_state().fs.clone(),
                focus_handle,
                rendered_entries_len: 0,
                folded_directory_drag_target: None,
                drag_target_entry: None,
                marked_entries: Default::default(),
                selection: None,
                context_menu: None,
                filename_editor,
                clipboard: None,
                _dragged_entry_destination: None,
                workspace: workspace.weak_handle(),
                diagnostics: Default::default(),
                diagnostic_counts: Default::default(),
                diagnostic_summary_update: Task::ready(()),
                scroll_handle,
                mouse_down: false,
                hover_expand_task: None,
                previous_drag_position: None,
                sticky_items_count: 0,
                last_reported_update: Instant::now(),
                state: State {
                    max_width_item_index: None,
                    edit_state: None,
                    temporarily_unfolded_pending_state: None,
                    last_worktree_root_id: Default::default(),
                    visible_entries: Default::default(),
                    ancestors: Default::default(),
                    expanded_dir_ids: Default::default(),
                    unfolded_dir_ids: Default::default(),
                },
                update_visible_entries_task: Default::default(),
                undo_manager: UndoManager::new(workspace.weak_handle(), weak_project_panel, &cx),
            };
            this.update_visible_entries(None, false, false, window, cx);

            this
        });

        cx.subscribe_in(&project_panel, window, {
            let project_panel = project_panel.downgrade();
            move |workspace, _, event, window, cx| match event {
                &Event::OpenedEntry {
                    entry_id,
                    focus_opened_item,
                    allow_preview,
                } => {
                    if let Some(worktree) = project.read(cx).worktree_for_entry(entry_id, cx)
                        && let Some(entry) = worktree.read(cx).entry_for_id(entry_id) {
                            let file_path = entry.path.clone();
                            let worktree_id = worktree.read(cx).id();
                            let entry_id = entry.id;
                            let is_via_ssh = project.read(cx).is_via_remote_server();

                            workspace
                                .open_path_preview(
                                    ProjectPath {
                                        worktree_id,
                                        path: file_path.clone(),
                                    },
                                    None,
                                    focus_opened_item,
                                    allow_preview,
                                    true,
                                    window, cx,
                                )
                                .detach_and_prompt_err("Failed to open file", window, cx, move |e, _, _| {
                                    match e.error_code() {
                                        ErrorCode::Disconnected => if is_via_ssh {
                                            Some("Disconnected from SSH host".to_string())
                                        } else {
                                            Some("Disconnected from remote project".to_string())
                                        },
                                        ErrorCode::UnsharedItem => Some(format!(
                                            "{} is not shared by the host. This could be because it has been marked as `private`",
                                            file_path.display(path_style)
                                        )),
                                        // See note in worktree.rs where this error originates. Returning Some in this case prevents
                                        // the error popup from saying "Try Again", which is a red herring in this case
                                        ErrorCode::Internal if e.to_string().contains("File is too large to load") => Some(e.to_string()),
                                        _ => None,
                                    }
                                });

                            if let Some(project_panel) = project_panel.upgrade() {
                                // Always select and mark the entry, regardless of whether it is opened or not.
                                project_panel.update(cx, |project_panel, _| {
                                    let entry = SelectedEntry { worktree_id, entry_id };
                                    project_panel.marked_entries.clear();
                                    project_panel.marked_entries.push(entry);
                                    project_panel.selection = Some(entry);
                                });
                                if !focus_opened_item {
                                    let focus_handle = project_panel.read(cx).focus_handle.clone();
                                    window.focus(&focus_handle, cx);
                                }
                            }
                        }
                }
                &Event::SplitEntry {
                    entry_id,
                    allow_preview,
                    split_direction,
                } => {
                    if let Some(worktree) = project.read(cx).worktree_for_entry(entry_id, cx)
                        && let Some(entry) = worktree.read(cx).entry_for_id(entry_id) {
                            workspace
                                .split_path_preview(
                                    ProjectPath {
                                        worktree_id: worktree.read(cx).id(),
                                        path: entry.path.clone(),
                                    },
                                    allow_preview,
                                    split_direction,
                                    window, cx,
                                )
                                .detach_and_log_err(cx);
                        }
                }

                _ => {}
            }
        })
        .detach();

        project_panel
    }

    pub async fn load(
        workspace: WeakEntity<Workspace>,
        mut cx: AsyncWindowContext,
    ) -> Result<Entity<Self>> {
        workspace.update_in(&mut cx, |workspace, window, cx| {
            ProjectPanel::new(workspace, window, cx)
        })
    }

    fn update_diagnostics(&mut self, cx: &mut Context<Self>) {
        let mut diagnostics: HashMap<(WorktreeId, Arc<RelPath>), DiagnosticSeverity> =
            Default::default();
        let show_diagnostics_setting = ProjectPanelSettings::get_global(cx).show_diagnostics;

        if show_diagnostics_setting != ShowDiagnostics::Off {
            self.project
                .read(cx)
                .diagnostic_summaries(false, cx)
                .filter_map(|(path, _, diagnostic_summary)| {
                    if diagnostic_summary.error_count > 0 {
                        Some((path, DiagnosticSeverity::ERROR))
                    } else if show_diagnostics_setting == ShowDiagnostics::All
                        && diagnostic_summary.warning_count > 0
                    {
                        Some((path, DiagnosticSeverity::WARNING))
                    } else {
                        None
                    }
                })
                .for_each(|(project_path, diagnostic_severity)| {
                    let ancestors = project_path.path.ancestors().collect::<Vec<_>>();
                    for path in ancestors.into_iter().rev() {
                        Self::update_strongest_diagnostic_severity(
                            &mut diagnostics,
                            &project_path,
                            path.into(),
                            diagnostic_severity,
                        );
                    }
                });
        }
        self.diagnostics = diagnostics;

        let diagnostic_badges = ProjectPanelSettings::get_global(cx).diagnostic_badges;
        self.diagnostic_counts =
            if diagnostic_badges && show_diagnostics_setting != ShowDiagnostics::Off {
                self.project.read(cx).diagnostic_summaries(false, cx).fold(
                    HashMap::default(),
                    |mut counts, (project_path, _, summary)| {
                        let entry = counts
                            .entry((project_path.worktree_id, project_path.path))
                            .or_default();
                        entry.error_count += summary.error_count;
                        if show_diagnostics_setting == ShowDiagnostics::All {
                            entry.warning_count += summary.warning_count;
                        }
                        counts
                    },
                )
            } else {
                Default::default()
            };
    }

    fn update_strongest_diagnostic_severity(
        diagnostics: &mut HashMap<(WorktreeId, Arc<RelPath>), DiagnosticSeverity>,
        project_path: &ProjectPath,
        path_buffer: Arc<RelPath>,
        diagnostic_severity: DiagnosticSeverity,
    ) {
        diagnostics
            .entry((project_path.worktree_id, path_buffer))
            .and_modify(|strongest_diagnostic_severity| {
                *strongest_diagnostic_severity =
                    cmp::min(*strongest_diagnostic_severity, diagnostic_severity);
            })
            .or_insert(diagnostic_severity);
    }

    fn focus_in(&mut self, window: &mut Window, cx: &mut Context<Self>) {
        if !self.focus_handle.contains_focused(window, cx) {
            cx.emit(Event::Focus);
        }
    }

    fn deploy_context_menu(
        &mut self,
        position: Point<Pixels>,
        entry_id: ProjectEntryId,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let project = self.project.read(cx);

        let worktree_id = if let Some(id) = project.worktree_id_for_entry(entry_id, cx) {
            id
        } else {
            return;
        };

        self.selection = Some(SelectedEntry {
            worktree_id,
            entry_id,
        });

        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
            let auto_fold_dirs = ProjectPanelSettings::get_global(cx).auto_fold_dirs;
            let worktree = worktree.read(cx);
            let is_root = Some(entry) == worktree.root_entry();
            let is_dir = entry.is_dir();
            let is_foldable = auto_fold_dirs && self.is_foldable(entry, worktree);
            let is_unfoldable = auto_fold_dirs && self.is_unfoldable(entry, worktree);
            let is_read_only = project.is_read_only(cx);
            let is_remote = project.is_remote();
            let is_collab = project.is_via_collab();
            let is_local = project.is_local() || project.is_via_wsl_with_host_interop(cx);

            let settings = ProjectPanelSettings::get_global(cx);
            let visible_worktrees_count = project.visible_worktrees(cx).count();
            let should_hide_rename = is_root
                && (cfg!(target_os = "windows")
                    || (settings.hide_root && visible_worktrees_count == 1));
            let should_show_compare = !is_dir && self.file_abs_paths_to_diff(cx).is_some();

            let has_git_repo = !is_dir && {
                let project_path = project::ProjectPath {
                    worktree_id,
                    path: entry.path.clone(),
                };
                project
                    .git_store()
                    .read(cx)
                    .repository_and_path_for_project_path(&project_path, cx)
                    .is_some()
            };

            let has_pasteable_content = self.has_pasteable_content(cx);
            let entity = cx.entity();
            let context_menu = ContextMenu::build(window, cx, |menu, _, cx| {
                menu.context(self.focus_handle.clone()).map(|menu| {
                    if is_read_only {
                        menu.when(is_dir, |menu| {
                            menu.action("Search Inside", Box::new(NewSearchInDirectory))
                        })
                    } else {
                        menu.action("New File", Box::new(NewFile))
                            .action("New Folder", Box::new(NewDirectory))
                            .separator()
                            .when(is_local, |menu| {
                                menu.action(
                                    ui::utils::reveal_in_file_manager_label(is_remote),
                                    Box::new(RevealInFileManager),
                                )
                            })
                            .when(is_local, |menu| {
                                menu.action("Open in Default App", Box::new(OpenWithSystem))
                            })
                            .action("Open in Terminal", Box::new(OpenInTerminal))
                            .when(is_dir, |menu| {
                                menu.separator()
                                    .action("Find in Folder…", Box::new(NewSearchInDirectory))
                            })
                            .when(is_unfoldable, |menu| {
                                menu.action("Unfold Directory", Box::new(UnfoldDirectory))
                            })
                            .when(is_foldable, |menu| {
                                menu.action("Fold Directory", Box::new(FoldDirectory))
                            })
                            .when(should_show_compare, |menu| {
                                menu.separator()
                                    .action("Compare Marked Files", Box::new(CompareMarkedFiles))
                            })
                            .separator()
                            .action("Cut", Box::new(Cut))
                            .action("Copy", Box::new(Copy))
                            .action("Duplicate", Box::new(Duplicate))
                            // TODO: Paste should always be visible, cbut disabled when clipboard is empty
                            .action_disabled_when(!has_pasteable_content, "Paste", Box::new(Paste))
                            .when(cx.has_flag::<ProjectPanelUndoRedoFeatureFlag>(), |menu| {
                                menu.action_disabled_when(
                                    !self.undo_manager.can_undo(),
                                    "Undo",
                                    Box::new(Undo),
                                )
                                .action_disabled_when(
                                    !self.undo_manager.can_redo(),
                                    "Redo",
                                    Box::new(Redo),
                                )
                            })
                            .when(is_remote, |menu| {
                                menu.separator()
                                    .action("Download...", Box::new(DownloadFromRemote))
                            })
                            .separator()
                            .action("Copy Path", Box::new(zed_actions::workspace::CopyPath))
                            .action(
                                "Copy Relative Path",
                                Box::new(zed_actions::workspace::CopyRelativePath),
                            )
                            .when(!is_dir && self.has_git_changes(entry_id), |menu| {
                                menu.separator().action(
                                    "Restore File",
                                    Box::new(git::RestoreFile { skip_prompt: false }),
                                )
                            })
                            .when(has_git_repo, |menu| {
                                menu.separator()
                                    .action("View File History", Box::new(git::FileHistory))
                            })
                            .when(!should_hide_rename, |menu| {
                                menu.separator().action("Rename", Box::new(Rename))
                            })
                            .when(!is_root, |menu| {
                                menu.action("Trash", Box::new(Trash { skip_prompt: false }))
                            })
                            .when(!is_root, |menu| {
                                menu.action("Delete", Box::new(Delete { skip_prompt: false }))
                            })
                            .when(!is_collab && is_root, |menu| {
                                menu.separator()
                                    .action(
                                        "Add Project to Workspace…",
                                        Box::new(workspace::AddFolderToProject),
                                    )
                                    .action("Remove from Workspace", Box::new(RemoveFromProject))
                            })
                            .when(is_dir && !is_root, |menu| {
                                menu.separator().action(
                                    "Collapse All",
                                    Box::new(CollapseSelectedEntryAndChildren),
                                )
                            })
                            .when(is_dir && is_root, |menu| {
                                let entity = entity.clone();
                                menu.separator().item(
                                    ContextMenuEntry::new("Collapse All").handler(
                                        move |window, cx| {
                                            entity.update(cx, |this, cx| {
                                                this.collapse_all_for_root(window, cx);
                                            });
                                        },
                                    ),
                                )
                            })
                    }
                })
            });

            window.focus(&context_menu.focus_handle(cx), cx);
            let subscription = cx.subscribe(&context_menu, |this, _, _: &DismissEvent, cx| {
                this.context_menu.take();
                cx.notify();
            });
            self.context_menu = Some((context_menu, position, subscription));
        }

        cx.notify();
    }

    fn has_git_changes(&self, entry_id: ProjectEntryId) -> bool {
        for visible in &self.state.visible_entries {
            if let Some(git_entry) = visible.entries.iter().find(|e| e.id == entry_id) {
                let total_modified =
                    git_entry.git_summary.index.modified + git_entry.git_summary.worktree.modified;
                let total_deleted =
                    git_entry.git_summary.index.deleted + git_entry.git_summary.worktree.deleted;
                return total_modified > 0 || total_deleted > 0;
            }
        }
        false
    }

    fn is_unfoldable(&self, entry: &Entry, worktree: &Worktree) -> bool {
        if !entry.is_dir() || self.state.unfolded_dir_ids.contains(&entry.id) {
            return false;
        }

        if let Some(parent_path) = entry.path.parent() {
            let snapshot = worktree.snapshot();
            let mut child_entries = snapshot.child_entries(parent_path);
            if let Some(child) = child_entries.next()
                && child_entries.next().is_none()
            {
                return child.kind.is_dir();
            }
        };
        false
    }

    fn is_foldable(&self, entry: &Entry, worktree: &Worktree) -> bool {
        if entry.is_dir() {
            let snapshot = worktree.snapshot();

            let mut child_entries = snapshot.child_entries(&entry.path);
            if let Some(child) = child_entries.next()
                && child_entries.next().is_none()
            {
                return child.kind.is_dir();
            }
        }
        false
    }

    fn expand_selected_entry(
        &mut self,
        _: &ExpandSelectedEntry,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        if let Some((worktree, entry)) = self.selected_entry(cx) {
            if let Some(folded_ancestors) = self.state.ancestors.get_mut(&entry.id)
                && folded_ancestors.current_ancestor_depth > 0
            {
                folded_ancestors.current_ancestor_depth -= 1;
                cx.notify();
                return;
            }
            if entry.is_dir() {
                let worktree_id = worktree.id();
                let entry_id = entry.id;
                let expanded_dir_ids = if let Some(expanded_dir_ids) =
                    self.state.expanded_dir_ids.get_mut(&worktree_id)
                {
                    expanded_dir_ids
                } else {
                    return;
                };

                match expanded_dir_ids.binary_search(&entry_id) {
                    Ok(_) => self.select_next(&SelectNext, window, cx),
                    Err(ix) => {
                        self.project.update(cx, |project, cx| {
                            project.expand_entry(worktree_id, entry_id, cx);
                        });

                        expanded_dir_ids.insert(ix, entry_id);
                        self.update_visible_entries(None, false, false, window, cx);
                        cx.notify();
                    }
                }
            }
        }
    }

    fn collapse_selected_entry(
        &mut self,
        _: &CollapseSelectedEntry,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let Some((worktree, entry)) = self.selected_entry_handle(cx) else {
            return;
        };
        self.collapse_entry(entry.clone(), worktree, window, cx)
    }

    fn collapse_entry(
        &mut self,
        entry: Entry,
        worktree: Entity<Worktree>,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let worktree = worktree.read(cx);
        if let Some(folded_ancestors) = self.state.ancestors.get_mut(&entry.id)
            && folded_ancestors.current_ancestor_depth + 1 < folded_ancestors.max_ancestor_depth()
        {
            folded_ancestors.current_ancestor_depth += 1;
            cx.notify();
            return;
        }
        let worktree_id = worktree.id();
        let expanded_dir_ids =
            if let Some(expanded_dir_ids) = self.state.expanded_dir_ids.get_mut(&worktree_id) {
                expanded_dir_ids
            } else {
                return;
            };

        let mut entry = &entry;
        loop {
            let entry_id = entry.id;
            match expanded_dir_ids.binary_search(&entry_id) {
                Ok(ix) => {
                    expanded_dir_ids.remove(ix);
                    self.update_visible_entries(
                        Some((worktree_id, entry_id)),
                        false,
                        false,
                        window,
                        cx,
                    );
                    cx.notify();
                    break;
                }
                Err(_) => {
                    if let Some(parent_entry) =
                        entry.path.parent().and_then(|p| worktree.entry_for_path(p))
                    {
                        entry = parent_entry;
                    } else {
                        break;
                    }
                }
            }
        }
    }

    fn collapse_selected_entry_and_children(
        &mut self,
        _: &CollapseSelectedEntryAndChildren,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        if let Some((worktree, entry)) = self.selected_entry(cx) {
            let worktree_id = worktree.id();
            let entry_id = entry.id;

            self.collapse_all_for_entry(worktree_id, entry_id, cx);

            self.update_visible_entries(Some((worktree_id, entry_id)), false, false, window, cx);
            cx.notify();
        }
    }

    /// Handles "Collapse All" from the context menu when a root directory is selected.
    /// With a single visible worktree, keeps the root expanded (matching CollapseAllEntries behavior).
    /// With multiple visible worktrees, collapses the root and all its children.
    fn collapse_all_for_root(&mut self, window: &mut Window, cx: &mut Context<Self>) {
        let Some((worktree, entry)) = self.selected_entry(cx) else {
            return;
        };

        let is_root = worktree.root_entry().map(|e| e.id) == Some(entry.id);
        if !is_root {
            return;
        }

        let worktree_id = worktree.id();
        let root_id = entry.id;

        if let Some(expanded_dir_ids) = self.state.expanded_dir_ids.get_mut(&worktree_id) {
            if self.project.read(cx).visible_worktrees(cx).count() == 1 {
                expanded_dir_ids.retain(|id| id == &root_id);
            } else {
                expanded_dir_ids.clear();
            }
        }

        self.update_visible_entries(Some((worktree_id, root_id)), false, false, window, cx);
        cx.notify();
    }

    fn collapse_all_entries(
        &mut self,
        _: &CollapseAllEntries,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        // By keeping entries for fully collapsed worktrees, we avoid expanding them within update_visible_entries
        // (which is it's default behavior when there's no entry for a worktree in expanded_dir_ids).
        let multiple_worktrees = self.project.read(cx).visible_worktrees(cx).count() > 1;
        let project = self.project.read(cx);

        self.state
            .expanded_dir_ids
            .iter_mut()
            .for_each(|(worktree_id, expanded_entries)| {
                if multiple_worktrees {
                    *expanded_entries = Default::default();
                    return;
                }

                let root_entry_id = project
                    .worktree_for_id(*worktree_id, cx)
                    .map(|worktree| worktree.read(cx).snapshot())
                    .and_then(|worktree_snapshot| {
                        worktree_snapshot.root_entry().map(|entry| entry.id)
                    });

                match root_entry_id {
                    Some(id) => {
                        expanded_entries.retain(|entry_id| entry_id == &id);
                    }
                    None => *expanded_entries = Default::default(),
                };
            });

        self.update_visible_entries(None, false, false, window, cx);
        cx.notify();
    }

    fn toggle_expanded(
        &mut self,
        entry_id: ProjectEntryId,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        if let Some(worktree_id) = self.project.read(cx).worktree_id_for_entry(entry_id, cx)
            && let Some(expanded_dir_ids) = self.state.expanded_dir_ids.get_mut(&worktree_id)
        {
            self.project.update(cx, |project, cx| {
                match expanded_dir_ids.binary_search(&entry_id) {
                    Ok(ix) => {
                        expanded_dir_ids.remove(ix);
                    }
                    Err(ix) => {
                        project.expand_entry(worktree_id, entry_id, cx);
                        expanded_dir_ids.insert(ix, entry_id);
                    }
                }
            });
            self.update_visible_entries(Some((worktree_id, entry_id)), false, false, window, cx);
            window.focus(&self.focus_handle, cx);
            cx.notify();
        }
    }

    fn toggle_expand_all(
        &mut self,
        entry_id: ProjectEntryId,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        if let Some(worktree_id) = self.project.read(cx).worktree_id_for_entry(entry_id, cx)
            && let Some(expanded_dir_ids) = self.state.expanded_dir_ids.get_mut(&worktree_id)
        {
            match expanded_dir_ids.binary_search(&entry_id) {
                Ok(_ix) => {
                    self.collapse_all_for_entry(worktree_id, entry_id, cx);
                }
                Err(_ix) => {
                    self.expand_all_for_entry(worktree_id, entry_id, cx);
                }
            }
            self.update_visible_entries(Some((worktree_id, entry_id)), false, false, window, cx);
            window.focus(&self.focus_handle, cx);
            cx.notify();
        }
    }

    fn expand_all_for_entry(
        &mut self,
        worktree_id: WorktreeId,
        entry_id: ProjectEntryId,
        cx: &mut Context<Self>,
    ) {
        self.project.update(cx, |project, cx| {
            if let Some((worktree, expanded_dir_ids)) = project
                .worktree_for_id(worktree_id, cx)
                .zip(self.state.expanded_dir_ids.get_mut(&worktree_id))
            {
                if let Some(task) = project.expand_all_for_entry(worktree_id, entry_id, cx) {
                    task.detach();
                }

                let worktree = worktree.read(cx);

                if let Some(mut entry) = worktree.entry_for_id(entry_id) {
                    loop {
                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
                            expanded_dir_ids.insert(ix, entry.id);
                        }

                        if let Some(parent_entry) =
                            entry.path.parent().and_then(|p| worktree.entry_for_path(p))
                        {
                            entry = parent_entry;
                        } else {
                            break;
                        }
                    }
                }
            }
        });
    }

    fn collapse_all_for_entry(
        &mut self,
        worktree_id: WorktreeId,
        entry_id: ProjectEntryId,
        cx: &mut Context<Self>,
    ) {
        self.project.update(cx, |project, cx| {
            if let Some((worktree, expanded_dir_ids)) = project
                .worktree_for_id(worktree_id, cx)
                .zip(self.state.expanded_dir_ids.get_mut(&worktree_id))
            {
                let worktree = worktree.read(cx);
                let mut dirs_to_collapse = vec![entry_id];
                let auto_fold_enabled = ProjectPanelSettings::get_global(cx).auto_fold_dirs;
                while let Some(current_id) = dirs_to_collapse.pop() {
                    let Some(current_entry) = worktree.entry_for_id(current_id) else {
                        continue;
                    };
                    if let Ok(ix) = expanded_dir_ids.binary_search(&current_id) {
                        expanded_dir_ids.remove(ix);
                    }
                    if auto_fold_enabled {
                        self.state.unfolded_dir_ids.remove(&current_id);
                    }
                    for child in worktree.child_entries(&current_entry.path) {
                        if child.is_dir() {
                            dirs_to_collapse.push(child.id);
                        }
                    }
                }
            }
        });
    }

    fn select_previous(&mut self, _: &SelectPrevious, window: &mut Window, cx: &mut Context<Self>) {
        if let Some(edit_state) = &self.state.edit_state
            && edit_state.processing_filename.is_none()
        {
            self.filename_editor.update(cx, |editor, cx| {
                editor.move_to_beginning_of_line(
                    &editor::actions::MoveToBeginningOfLine {
                        stop_at_soft_wraps: false,
                        stop_at_indent: false,
                    },
                    window,
                    cx,
                );
            });
            return;
        }
        if let Some(selection) = self.selection {
            let (mut worktree_ix, mut entry_ix, _) =
                self.index_for_selection(selection).unwrap_or_default();
            if entry_ix > 0 {
                entry_ix -= 1;
            } else if worktree_ix > 0 {
                worktree_ix -= 1;
                entry_ix = self.state.visible_entries[worktree_ix].entries.len() - 1;
            } else {
                return;
            }

            let VisibleEntriesForWorktree {
                worktree_id,
                entries,
                ..
            } = &self.state.visible_entries[worktree_ix];
            let selection = SelectedEntry {
                worktree_id: *worktree_id,
                entry_id: entries[entry_ix].id,
            };
            self.selection = Some(selection);
            if window.modifiers().shift {
                self.marked_entries.push(selection);
            }
            self.autoscroll(cx);
            cx.notify();
        } else {
            self.select_first(&SelectFirst {}, window, cx);
        }
    }

    fn confirm(&mut self, _: &Confirm, window: &mut Window, cx: &mut Context<Self>) {
        if let Some(task) = self.confirm_edit(true, window, cx) {
            task.detach_and_notify_err(self.workspace.clone(), window, cx);
        }
    }

    fn open(&mut self, _: &Open, window: &mut Window, cx: &mut Context<Self>) {
        let preview_tabs_enabled =
            PreviewTabsSettings::get_global(cx).enable_preview_from_project_panel;
        self.open_internal(true, !preview_tabs_enabled, None, window, cx);
    }

    fn open_permanent(&mut self, _: &OpenPermanent, window: &mut Window, cx: &mut Context<Self>) {
        self.open_internal(false, true, None, window, cx);
    }

    fn open_split_vertical(
        &mut self,
        _: &OpenSplitVertical,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        self.open_internal(false, true, Some(SplitDirection::vertical(cx)), window, cx);
    }

    fn open_split_horizontal(
        &mut self,
        _: &OpenSplitHorizontal,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        self.open_internal(
            false,
            true,
            Some(SplitDirection::horizontal(cx)),
            window,
            cx,
        );
    }

    fn open_internal(
        &mut self,
        allow_preview: bool,
        focus_opened_item: bool,
        split_direction: Option<SplitDirection>,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        if let Some((_, entry)) = self.selected_entry(cx) {
            if entry.is_file() {
                if split_direction.is_some() {
                    self.split_entry(entry.id, allow_preview, split_direction, cx);
                } else {
                    self.open_entry(entry.id, focus_opened_item, allow_preview, cx);
                }
                cx.notify();
            } else {
                self.toggle_expanded(entry.id, window, cx);
            }
        }
    }

    fn populate_validation_error(&mut self, cx: &mut Context<Self>) {
        let edit_state = match self.state.edit_state.as_mut() {
            Some(state) => state,
            None => return,
        };
        let filename = self.filename_editor.read(cx).text(cx);
        if !filename.is_empty() {
            if filename.is_empty() {
                edit_state.validation_state =
                    ValidationState::Error("File or directory name cannot be empty.".to_string());
                cx.notify();
                return;
            }

            let trimmed_filename = filename.trim();
            if trimmed_filename != filename {
                edit_state.validation_state = ValidationState::Warning(
                    "File or directory name contains leading or trailing whitespace.".to_string(),
                );
                cx.notify();
                return;
            }
            let trimmed_filename = trimmed_filename.trim_start_matches('/');

            let Ok(filename) = RelPath::unix(trimmed_filename) else {
                edit_state.validation_state = ValidationState::Warning(
                    "File or directory name contains leading or trailing whitespace.".to_string(),
                );
                cx.notify();
                return;
            };

            if let Some(worktree) = self
                .project
                .read(cx)
                .worktree_for_id(edit_state.worktree_id, cx)
                && let Some(entry) = worktree.read(cx).entry_for_id(edit_state.entry_id)
            {
                let mut already_exists = false;
                if edit_state.is_new_entry() {
                    let new_path = entry.path.join(filename);
                    if worktree.read(cx).entry_for_path(&new_path).is_some() {
                        already_exists = true;
                    }
                } else {
                    let new_path = if let Some(parent) = entry.path.clone().parent() {
                        parent.join(&filename)
                    } else {
                        filename.into()
                    };
                    if let Some(existing) = worktree.read(cx).entry_for_path(&new_path)
                        && existing.id != entry.id
                    {
                        already_exists = true;
                    }
                };
                if already_exists {
                    edit_state.validation_state = ValidationState::Error(format!(
                        "File or directory '{}' already exists at location. Please choose a different name.",
                        filename.as_unix_str()
                    ));
                    cx.notify();
                    return;
                }
            }
        }
        edit_state.validation_state = ValidationState::None;
        cx.notify();
    }

    fn confirm_edit(
        &mut self,
        refocus: bool,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> Option<Task<Result<()>>> {
        let edit_state = self.state.edit_state.as_mut()?;
        let worktree_id = edit_state.worktree_id;
        let is_new_entry = edit_state.is_new_entry();
        let mut filename = self.filename_editor.read(cx).text(cx);
        let path_style = self.project.read(cx).path_style(cx);
        if path_style.is_windows() {
            // on windows, trailing dots are ignored in paths
            // this can cause project panel to create a new entry with a trailing dot
            // while the actual one without the dot gets populated by the file watcher
            while let Some(trimmed) = filename.strip_suffix('.') {
                filename = trimmed.to_string();
            }
        }
        if filename.trim().is_empty() {
            return None;
        }

        let filename_indicates_dir = if path_style.is_windows() {
            filename.ends_with('/') || filename.ends_with('\\')
        } else {
            filename.ends_with('/')
        };
        let filename = if path_style.is_windows() {
            filename.trim_start_matches(&['/', '\\'])
        } else {
            filename.trim_start_matches('/')
        };
        let filename = RelPath::new(filename.as_ref(), path_style).ok()?.into_arc();

        edit_state.is_dir =
            edit_state.is_dir || (edit_state.is_new_entry() && filename_indicates_dir);
        let is_dir = edit_state.is_dir;
        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
        let entry = worktree.read(cx).entry_for_id(edit_state.entry_id)?.clone();

        let edit_task;
        let edited_entry_id;
        let edited_entry;
        let new_project_path: ProjectPath;
        if is_new_entry {
            self.selection = Some(SelectedEntry {
                worktree_id,
                entry_id: NEW_ENTRY_ID,
            });
            let new_path = entry.path.join(&filename);
            if worktree.read(cx).entry_for_path(&new_path).is_some() {
                return None;
            }

            edited_entry = None;
            edited_entry_id = NEW_ENTRY_ID;
            new_project_path = (worktree_id, new_path).into();
            edit_task = self.project.update(cx, |project, cx| {
                project.create_entry(new_project_path.clone(), is_dir, cx)
            });
        } else {
            let new_path = if let Some(parent) = entry.path.parent() {
                parent.join(&filename)
            } else {
                filename.clone()
            };
            if let Some(existing) = worktree.read(cx).entry_for_path(&new_path) {
                if existing.id == entry.id && refocus {
                    window.focus(&self.focus_handle, cx);
                }
                return None;
            }
            edited_entry_id = entry.id;
            edited_entry = Some(entry);
            new_project_path = (worktree_id, new_path).into();
            edit_task = self.project.update(cx, |project, cx| {
                project.rename_entry(edited_entry_id, new_project_path.clone(), cx)
            })
        };

        if refocus {
            window.focus(&self.focus_handle, cx);
        }
        edit_state.processing_filename = Some(filename);
        cx.notify();

        Some(cx.spawn_in(window, async move |project_panel, cx| {
            let new_entry = edit_task.await;
            project_panel.update(cx, |project_panel, cx| {
                project_panel.state.edit_state = None;

                // Record the operation if the edit was applied
                if new_entry.is_ok() {
                    let operation = if let Some(old_entry) = edited_entry {
                        Change::Renamed((worktree_id, old_entry.path).into(), new_project_path)
                    } else {
                        Change::Created(new_project_path)
                    };

                    project_panel.undo_manager.record([operation]).log_err();
                }

                cx.notify();
            })?;

            match new_entry {
                Err(e) => {
                    project_panel
                        .update_in(cx, |project_panel, window, cx| {
                            project_panel.marked_entries.clear();
                            project_panel.update_visible_entries(None, false, false, window, cx);
                        })
                        .ok();
                    Err(e)?;
                }
                Ok(CreatedEntry::Included(new_entry)) => {
                    project_panel.update_in(cx, |project_panel, window, cx| {
                        if let Some(selection) = &mut project_panel.selection
                            && selection.entry_id == edited_entry_id
                        {
                            selection.worktree_id = worktree_id;
                            selection.entry_id = new_entry.id;
                            project_panel.marked_entries.clear();
                            project_panel.expand_to_selection(cx);
                        }
                        project_panel.update_visible_entries(None, false, false, window, cx);
                        if is_new_entry && !is_dir {
                            let settings = ProjectPanelSettings::get_global(cx);
                            if settings.auto_open.should_open_on_create() {
                                project_panel.open_entry(new_entry.id, true, false, cx);
                            }
                        }
                        cx.notify();
                    })?;
                }
                Ok(CreatedEntry::Excluded { abs_path }) => {
                    if let Some(open_task) = project_panel
                        .update_in(cx, |project_panel, window, cx| {
                            project_panel.marked_entries.clear();
                            project_panel.update_visible_entries(None, false, false, window, cx);

                            if is_dir {
                                project_panel.project.update(cx, |_, cx| {
                                    cx.emit(project::Event::Toast {
                                        notification_id: "excluded-directory".into(),
                                        message: format!(
                                            concat!(
                                                "Created an excluded directory at {:?}.\n",
                                                "Alter `file_scan_exclusions` in the settings ",
                                                "to show it in the panel"
                                            ),
                                            abs_path
                                        ),
                                        link: None,
                                    })
                                });
                                None
                            } else {
                                project_panel
                                    .workspace
                                    .update(cx, |workspace, cx| {
                                        workspace.open_abs_path(
                                            abs_path,
                                            OpenOptions {
                                                visible: Some(OpenVisible::All),
                                                ..Default::default()
                                            },
                                            window,
                                            cx,
                                        )
                                    })
                                    .ok()
                            }
                        })
                        .ok()
                        .flatten()
                    {
                        let _ = open_task.await?;
                    }
                }
            }
            Ok(())
        }))
    }

    fn discard_edit_state(&mut self, window: &mut Window, cx: &mut Context<Self>) {
        if let Some(edit_state) = self.state.edit_state.take() {
            self.state.temporarily_unfolded_pending_state = edit_state
                .temporarily_unfolded
                .and_then(|temporarily_unfolded_entry_id| {
                    let previously_focused_leaf_entry = edit_state.previously_focused?;
                    let folded_ancestors =
                        self.state.ancestors.get(&temporarily_unfolded_entry_id)?;
                    Some(TemporaryUnfoldedPendingState {
                        previously_focused_leaf_entry,
                        temporarily_unfolded_active_entry_id: folded_ancestors
                            .active_ancestor()
                            .unwrap_or(temporarily_unfolded_entry_id),
                    })
                });
            let previously_focused = edit_state
                .previously_focused
                .map(|entry| (entry.worktree_id, entry.entry_id));
            self.update_visible_entries(
                previously_focused,
                false,
                previously_focused.is_some(),
                window,
                cx,
            );
        }
    }

    fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
        if cx.stop_active_drag(window) {
            self.drag_target_entry.take();
            self.hover_expand_task.take();
            return;
        }
        self.marked_entries.clear();
        cx.notify();
        self.discard_edit_state(window, cx);
        window.focus(&self.focus_handle, cx);
    }

    fn open_entry(
        &mut self,
        entry_id: ProjectEntryId,
        focus_opened_item: bool,
        allow_preview: bool,

        cx: &mut Context<Self>,
    ) {
        cx.emit(Event::OpenedEntry {
            entry_id,
            focus_opened_item,
            allow_preview,
        });
    }

    fn split_entry(
        &mut self,
        entry_id: ProjectEntryId,
        allow_preview: bool,
        split_direction: Option<SplitDirection>,

        cx: &mut Context<Self>,
    ) {
        cx.emit(Event::SplitEntry {
            entry_id,
            allow_preview,
            split_direction,
        });
    }

    fn new_file(&mut self, _: &NewFile, window: &mut Window, cx: &mut Context<Self>) {
        self.add_entry(false, window, cx)
    }

    fn new_directory(&mut self, _: &NewDirectory, window: &mut Window, cx: &mut Context<Self>) {
        self.add_entry(true, window, cx)
    }

    fn add_entry(&mut self, is_dir: bool, window: &mut Window, cx: &mut Context<Self>) {
        let Some((worktree_id, entry_id)) = self
            .selection
            .map(|entry| (entry.worktree_id, entry.entry_id))
            .or_else(|| {
                let entry_id = self.state.last_worktree_root_id?;
                let worktree_id = self
                    .project
                    .read(cx)
                    .worktree_for_entry(entry_id, cx)?
                    .read(cx)
                    .id();

                self.selection = Some(SelectedEntry {
                    worktree_id,
                    entry_id,
                });

                Some((worktree_id, entry_id))
            })
        else {
            return;
        };

        let directory_id;
        let new_entry_id = self.resolve_entry(entry_id);
        if let Some((worktree, expanded_dir_ids)) = self
            .project
            .read(cx)
            .worktree_for_id(worktree_id, cx)
            .zip(self.state.expanded_dir_ids.get_mut(&worktree_id))
        {
            let worktree = worktree.read(cx);
            if let Some(mut entry) = worktree.entry_for_id(new_entry_id) {
                loop {
                    if entry.is_dir() {
                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
                            expanded_dir_ids.insert(ix, entry.id);
                        }
                        directory_id = entry.id;
                        break;
                    } else {
                        if let Some(parent_path) = entry.path.parent()
                            && let Some(parent_entry) = worktree.entry_for_path(parent_path)
                        {
                            entry = parent_entry;
                            continue;
                        }
                        return;
                    }
                }
            } else {
                return;
            };
        } else {
            return;
        };

        self.marked_entries.clear();
        self.state.edit_state = Some(EditState {
            worktree_id,
            entry_id: directory_id,
            leaf_entry_id: None,
            is_dir,
            processing_filename: None,
            previously_focused: self.selection,
            depth: 0,
            validation_state: ValidationState::None,
            temporarily_unfolded: (new_entry_id != entry_id).then_some(new_entry_id),
        });
        self.filename_editor.update(cx, |editor, cx| {
            editor.clear(window, cx);
        });
        self.update_visible_entries(Some((worktree_id, NEW_ENTRY_ID)), true, true, window, cx);
        cx.notify();
    }

    fn unflatten_entry_id(&self, leaf_entry_id: ProjectEntryId) -> ProjectEntryId {
        if let Some(ancestors) = self.state.ancestors.get(&leaf_entry_id) {
            ancestors
                .ancestors
                .get(ancestors.current_ancestor_depth)
                .copied()
                .unwrap_or(leaf_entry_id)
        } else {
            leaf_entry_id
        }
    }

    pub fn undo(&mut self, _: &Undo, _window: &mut Window, _cx: &mut Context<Self>) {
        self.undo_manager.undo().log_err();
    }

    pub fn redo(&mut self, _: &Redo, _window: &mut Window, _cx: &mut Context<Self>) {
        self.undo_manager.redo().log_err();
    }

    fn rename_impl(
        &mut self,
        selection: Option<Range<usize>>,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        if let Some(SelectedEntry {
            worktree_id,
            entry_id,
        }) = self.selection
            && let Some(worktree) = self.project.read(cx).worktree_for_id(worktree_id, cx)
        {
            let sub_entry_id = self.unflatten_entry_id(entry_id);
            if let Some(entry) = worktree.read(cx).entry_for_id(sub_entry_id) {
                #[cfg(target_os = "windows")]
                if Some(entry) == worktree.read(cx).root_entry() {
                    return;
                }

                if Some(entry) == worktree.read(cx).root_entry() {
                    let settings = ProjectPanelSettings::get_global(cx);
                    let visible_worktrees_count =
                        self.project.read(cx).visible_worktrees(cx).count();
                    if settings.hide_root && visible_worktrees_count == 1 {
                        return;
                    }
                }

                self.state.edit_state = Some(EditState {
                    worktree_id,
                    entry_id: sub_entry_id,
                    leaf_entry_id: Some(entry_id),
                    is_dir: entry.is_dir(),
                    processing_filename: None,
                    previously_focused: None,
                    depth: 0,
                    validation_state: ValidationState::None,
                    temporarily_unfolded: None,
                });
                let file_name = entry.path.file_name().unwrap_or_default().to_string();
                let selection = selection.unwrap_or_else(|| {
                    let file_stem = entry.path.file_stem().map(|s| s.to_string());
                    let selection_end =
                        file_stem.map_or(file_name.len(), |file_stem| file_stem.len());
                    0..selection_end
                });
                self.filename_editor.update(cx, |editor, cx| {
                    editor.set_text(file_name, window, cx);
                    editor.change_selections(Default::default(), window, cx, |s| {
                        s.select_ranges([
                            MultiBufferOffset(selection.start)..MultiBufferOffset(selection.end)
                        ])
                    });
                });
                self.update_visible_entries(None, true, true, window, cx);
                cx.notify();
            }
        }
    }

    fn rename(&mut self, _: &Rename, window: &mut Window, cx: &mut Context<Self>) {
        self.rename_impl(None, window, cx);
    }

    fn trash(&mut self, action: &Trash, window: &mut Window, cx: &mut Context<Self>) {
        self.remove(true, action.skip_prompt, window, cx);
    }

    fn delete(&mut self, action: &Delete, window: &mut Window, cx: &mut Context<Self>) {
        self.remove(false, action.skip_prompt, window, cx);
    }

    fn restore_file(
        &mut self,
        action: &git::RestoreFile,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        maybe!({
            let selection = self.selection?;
            let project = self.project.read(cx);

            let (_worktree, entry) = self.selected_sub_entry(cx)?;
            if entry.is_dir() {
                return None;
            }

            let project_path = project.path_for_entry(selection.entry_id, cx)?;

            let git_store = project.git_store();
            let (repository, repo_path) = git_store
                .read(cx)
                .repository_and_path_for_project_path(&project_path, cx)?;

            let snapshot = repository.read(cx).snapshot();
            let status = snapshot.status_for_path(&repo_path)?;
            if !status.status.is_modified() && !status.status.is_deleted() {
                return None;
            }

            let file_name = entry.path.file_name()?.to_string();

            let answer = if !action.skip_prompt {
                let prompt = format!("Discard changes to {}?", file_name);
                Some(window.prompt(PromptLevel::Info, &prompt, None, &["Restore", "Cancel"], cx))
            } else {
                None
            };

            cx.spawn_in(window, async move |panel, cx| {
                if let Some(answer) = answer
                    && answer.await != Ok(0)
                {
                    return anyhow::Ok(());
                }

                let task = panel.update(cx, |_panel, cx| {
                    repository.update(cx, |repo, cx| {
                        repo.checkout_files("HEAD", vec![repo_path], cx)
                    })
                })?;

                if let Err(e) = task.await {
                    panel
                        .update(cx, |panel, cx| {
                            let message = format!("Failed to restore {}: {}", file_name, e);
                            let toast = StatusToast::new(message, cx, |this, _| {
                                this.icon(ToastIcon::new(IconName::XCircle).color(Color::Error))
                                    .dismiss_button(true)
                            });
                            panel
                                .workspace
                                .update(cx, |workspace, cx| {
                                    workspace.toggle_status_toast(toast, cx);
                                })
                                .ok();
                        })
                        .ok();
                }

                panel
                    .update(cx, |panel, cx| {
                        panel.project.update(cx, |project, cx| {
                            if let Some(buffer_id) = project
                                .buffer_store()
                                .read(cx)
                                .buffer_id_for_project_path(&project_path)
                            {
                                if let Some(buffer) = project.buffer_for_id(*buffer_id, cx) {
                                    buffer.update(cx, |buffer, cx| {
                                        let _ = buffer.reload(cx);
                                    });
                                }
                            }
                        })
                    })
                    .ok();

                anyhow::Ok(())
            })
            .detach_and_log_err(cx);

            Some(())
        });
    }

    // TODO!(yara|dino) this should be split up, trashing and deleting are
    // fundamentally different. Adding to the existing differences trashing will
    // no longer need a confirmation with the introduction of undo
    fn remove(
        &mut self,
        trash: bool,
        skip_prompt: bool,
        window: &mut Window,
        cx: &mut Context<ProjectPanel>,
    ) {
        maybe!({
            let items_to_delete = self.disjoint_effective_entries(cx);
            if items_to_delete.is_empty() {
                return None;
            }
            let project = self.project.read(cx);

            let mut dirty_buffers = 0;
            let file_paths = items_to_delete
                .iter()
                .filter_map(|selection| {
                    let project_path = project.path_for_entry(selection.entry_id, cx)?;
                    dirty_buffers +=
                        project.dirty_buffers(cx).any(|path| path == project_path) as usize;

                    Some((
                        selection.entry_id,
                        selection.worktree_id,
                        project_path.path.file_name()?.to_string(),
                    ))
                })
                .collect::<Vec<_>>();
            if file_paths.is_empty() {
                return None;
            }
            let answer = if !skip_prompt {
                let operation = if trash { "Trash" } else { "Delete" };
                let message_start = if trash {
                    "Do you want to trash"
                } else {
                    "Are you sure you want to permanently delete"
                };
                let prompt = match file_paths.first() {
                    Some((_, _, path)) if file_paths.len() == 1 => {
                        let unsaved_warning = if dirty_buffers > 0 {
                            "\n\nIt has unsaved changes, which will be lost."
                        } else {
                            ""
                        };

                        format!("{message_start} {path}?{unsaved_warning}")
                    }
                    _ => {
                        const CUTOFF_POINT: usize = 10;
                        let names = if file_paths.len() > CUTOFF_POINT {
                            let truncated_path_counts = file_paths.len() - CUTOFF_POINT;
                            let mut paths = file_paths
                                .iter()
                                .map(|(_, _, path)| path.clone())
                                .take(CUTOFF_POINT)
                                .collect::<Vec<_>>();
                            paths.truncate(CUTOFF_POINT);
                            if truncated_path_counts == 1 {
                                paths.push(".. 1 file not shown".into());
                            } else {
                                paths.push(format!(".. {} files not shown", truncated_path_counts));
                            }
                            paths
                        } else {
                            file_paths.iter().map(|(_, _, path)| path.clone()).collect()
                        };
                        let unsaved_warning = if dirty_buffers == 0 {
                            String::new()
                        } else if dirty_buffers == 1 {
                            "\n\n1 of these has unsaved changes, which will be lost.".to_string()
                        } else {
                            format!(
                                "\n\n{dirty_buffers} of these have unsaved changes, which will be lost."
                            )
                        };

                        format!(
                            "{message_start} the following {} files?\n{}{unsaved_warning}",
                            file_paths.len(),
                            names.join("\n")
                        )
                    }
                };
                let detail = (!trash).then_some("This cannot be undone.");
                Some(window.prompt(
                    PromptLevel::Info,
                    &prompt,
                    detail,
                    &[operation, "Cancel"],
                    cx,
                ))
            } else {
                None
            };
            let next_selection = self.find_next_selection_after_deletion(items_to_delete, cx);
            cx.spawn_in(window, async move |panel, cx| {
                if let Some(answer) = answer
                    && answer.await != Ok(0)
                {
                    return anyhow::Ok(());
                }

                let mut changes = Vec::new();

                for (entry_id, worktree_id, _) in file_paths {
                    if trash {
                        let trash_id = panel
                            .update(cx, |panel, cx| {
                                panel
                                    .project
                                    .update(cx, |project, cx| project.trash_entry(entry_id, cx))
                                    .context("no such entry")
                            })??
                            .await?;

                        // Keep track of trashed change so that we can then record
                        // all of the changes at once, such that undoing and redoing
                        // restores or trashes all files in batch.
                        changes.push(Change::Trashed(worktree_id, trash_id))
                    } else {
                        panel
                            .update(cx, |panel, cx| {
                                panel
                                    .project
                                    .update(cx, |project, cx| project.delete_entry(entry_id, cx))
                                    .context("no such entry")
                            })??
                            .await?;
                    }
                }
                panel.update_in(cx, |panel, window, cx| {
                    if trash {
                        panel.undo_manager.record(changes).log_err();
                    }

                    if let Some(next_selection) = next_selection {
                        panel.update_visible_entries(
                            Some((next_selection.worktree_id, next_selection.entry_id)),
                            false,
                            true,
                            window,
                            cx,
                        );
                    } else {
                        panel.select_last(&SelectLast {}, window, cx);
                    }
                })?;
                Ok(())
            })
            .detach_and_log_err(cx);
            Some(())
        });
    }

    fn find_next_selection_after_deletion(
        &self,
        sanitized_entries: BTreeSet<SelectedEntry>,
        cx: &mut Context<Self>,
    ) -> Option<SelectedEntry> {
        if sanitized_entries.is_empty() {
            return None;
        }
        let project = self.project.read(cx);
        let (worktree_id, worktree) = sanitized_entries
            .iter()
            .map(|entry| entry.worktree_id)
            .filter_map(|id| project.worktree_for_id(id, cx).map(|w| (id, w.read(cx))))
            .max_by(|(_, a), (_, b)| a.root_name().cmp(b.root_name()))?;
        let git_store = project.git_store().read(cx);

        let marked_entries_in_worktree = sanitized_entries
            .iter()
            .filter(|e| e.worktree_id == worktree_id)
            .collect::<HashSet<_>>();
        let latest_entry = marked_entries_in_worktree
            .iter()
            .max_by(|a, b| {
                match (
                    worktree.entry_for_id(a.entry_id),
                    worktree.entry_for_id(b.entry_id),
                ) {
                    (Some(a), Some(b)) => compare_paths(
                        (a.path.as_std_path(), a.is_file()),
                        (b.path.as_std_path(), b.is_file()),
                    ),
                    _ => cmp::Ordering::Equal,
                }
            })
            .and_then(|e| worktree.entry_for_id(e.entry_id))?;

        let parent_path = latest_entry.path.parent()?;
        let parent_entry = worktree.entry_for_path(parent_path)?;

        // Remove all siblings that are being deleted except the last marked entry
        let repo_snapshots = git_store.repo_snapshots(cx);
        let worktree_snapshot = worktree.snapshot();
        let hide_gitignore = ProjectPanelSettings::get_global(cx).hide_gitignore;
        let mut siblings: Vec<_> =
            ChildEntriesGitIter::new(&repo_snapshots, &worktree_snapshot, parent_path)
                .filter(|sibling| {
                    (sibling.id == latest_entry.id)
                        || (!marked_entries_in_worktree.contains(&&SelectedEntry {
                            worktree_id,
                            entry_id: sibling.id,
                        }) && (!hide_gitignore || !sibling.is_ignored))
                })
                .map(|entry| entry.to_owned())
                .collect();

        let sort_mode = ProjectPanelSettings::get_global(cx).sort_mode;
        let sort_order = ProjectPanelSettings::get_global(cx).sort_order;
        sort_worktree_entries(&mut siblings, sort_mode, sort_order);
        let sibling_entry_index = siblings
            .iter()
            .position(|sibling| sibling.id == latest_entry.id)?;

        if let Some(next_sibling) = sibling_entry_index
            .checked_add(1)
            .and_then(|i| siblings.get(i))
        {
            return Some(SelectedEntry {
                worktree_id,
                entry_id: next_sibling.id,
            });
        }
        if let Some(prev_sibling) = sibling_entry_index
            .checked_sub(1)
            .and_then(|i| siblings.get(i))
        {
            return Some(SelectedEntry {
                worktree_id,
                entry_id: prev_sibling.id,
            });
        }
        // No neighbour sibling found, fall back to parent
        Some(SelectedEntry {
            worktree_id,
            entry_id: parent_entry.id,
        })
    }

    fn unfold_directory(
        &mut self,
        _: &UnfoldDirectory,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        if let Some((worktree, entry)) = self.selected_entry(cx) {
            self.state.unfolded_dir_ids.insert(entry.id);

            let snapshot = worktree.snapshot();
            let mut parent_path = entry.path.parent();
            while let Some(path) = parent_path {
                if let Some(parent_entry) = worktree.entry_for_path(path) {
                    let mut children_iter = snapshot.child_entries(path);

                    if children_iter.by_ref().take(2).count() > 1 {
                        break;
                    }

                    self.state.unfolded_dir_ids.insert(parent_entry.id);
                    parent_path = path.parent();
                } else {
                    break;
                }
            }

            self.update_visible_entries(None, false, true, window, cx);
            cx.notify();
        }
    }

    fn fold_directory(&mut self, _: &FoldDirectory, window: &mut Window, cx: &mut Context<Self>) {
        if let Some((worktree, entry)) = self.selected_entry(cx) {
            self.state.unfolded_dir_ids.remove(&entry.id);

            let snapshot = worktree.snapshot();
            let mut path = &*entry.path;
            loop {
                let mut child_entries_iter = snapshot.child_entries(path);
                if let Some(child) = child_entries_iter.next() {
                    if child_entries_iter.next().is_none() && child.is_dir() {
                        self.state.unfolded_dir_ids.remove(&child.id);
                        path = &*child.path;
                    } else {
                        break;
                    }
                } else {
                    break;
                }
            }

            self.update_visible_entries(None, false, true, window, cx);
            cx.notify();
        }
    }

    fn scroll_up(&mut self, _: &ScrollUp, window: &mut Window, cx: &mut Context<Self>) {
        for _ in 0..self.rendered_entries_len / 2 {
            window.dispatch_action(SelectPrevious.boxed_clone(), cx);
        }
    }

    fn scroll_down(&mut self, _: &ScrollDown, window: &mut Window, cx: &mut Context<Self>) {
        for _ in 0..self.rendered_entries_len / 2 {
            window.dispatch_action(SelectNext.boxed_clone(), cx);
        }
    }

    fn scroll_cursor_center(
        &mut self,
        _: &ScrollCursorCenter,
        _: &mut Window,
        cx: &mut Context<Self>,
    ) {
        if let Some((_, _, index)) = self.selection.and_then(|s| self.index_for_selection(s)) {
            self.scroll_handle
                .scroll_to_item_strict(index, ScrollStrategy::Center);
            cx.notify();
        }
    }

    fn scroll_cursor_top(&mut self, _: &ScrollCursorTop, _: &mut Window, cx: &mut Context<Self>) {
        if let Some((_, _, index)) = self.selection.and_then(|s| self.index_for_selection(s)) {
            self.scroll_handle
                .scroll_to_item_strict(index, ScrollStrategy::Top);
            cx.notify();
        }
    }

    fn scroll_cursor_bottom(
        &mut self,
        _: &ScrollCursorBottom,
        _: &mut Window,
        cx: &mut Context<Self>,
    ) {
        if let Some((_, _, index)) = self.selection.and_then(|s| self.index_for_selection(s)) {
            self.scroll_handle
                .scroll_to_item_strict(index, ScrollStrategy::Bottom);
            cx.notify();
        }
    }

    fn select_next(&mut self, _: &SelectNext, window: &mut Window, cx: &mut Context<Self>) {
        if let Some(edit_state) = &self.state.edit_state
            && edit_state.processing_filename.is_none()
        {
            self.filename_editor.update(cx, |editor, cx| {
                editor.move_to_end_of_line(
                    &editor::actions::MoveToEndOfLine {
                        stop_at_soft_wraps: false,
                    },
                    window,
                    cx,
                );
            });
            return;
        }
        if let Some(selection) = self.selection {
            let (mut worktree_ix, mut entry_ix, _) =
                self.index_for_selection(selection).unwrap_or_default();
            if let Some(worktree_entries) = self
                .state
                .visible_entries
                .get(worktree_ix)
                .map(|v| &v.entries)
            {
                if entry_ix + 1 < worktree_entries.len() {
                    entry_ix += 1;
                } else {
                    worktree_ix += 1;
                    entry_ix = 0;
                }
            }

            if let Some(VisibleEntriesForWorktree {
                worktree_id,
                entries,
                ..
            }) = self.state.visible_entries.get(worktree_ix)
                && let Some(entry) = entries.get(entry_ix)
            {
                let selection = SelectedEntry {
                    worktree_id: *worktree_id,
                    entry_id: entry.id,
                };
                self.selection = Some(selection);
                if window.modifiers().shift {
                    self.marked_entries.push(selection);
                }

                self.autoscroll(cx);
                cx.notify();
            }
        } else {
            self.select_first(&SelectFirst {}, window, cx);
        }
    }

    fn select_prev_diagnostic(
        &mut self,
        action: &SelectPrevDiagnostic,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let selection = self.find_entry(
            self.selection.as_ref(),
            true,
            &|entry: GitEntryRef, worktree_id: WorktreeId| {
                self.selection.is_none_or(|selection| {
                    if selection.worktree_id == worktree_id {
                        selection.entry_id != entry.id
                    } else {
                        true
                    }
                }) && entry.is_file()
                    && self
                        .diagnostics
                        .get(&(worktree_id, entry.path.clone()))
                        .is_some_and(|severity| action.severity.matches(*severity))
            },
            cx,
        );

        if let Some(selection) = selection {
            self.selection = Some(selection);
            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
            self.update_visible_entries(
                Some((selection.worktree_id, selection.entry_id)),
                false,
                true,
                window,
                cx,
            );
            cx.notify();
        }
    }

    fn select_next_diagnostic(
        &mut self,
        action: &SelectNextDiagnostic,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let selection = self.find_entry(
            self.selection.as_ref(),
            false,
            &|entry: GitEntryRef, worktree_id: WorktreeId| {
                self.selection.is_none_or(|selection| {
                    if selection.worktree_id == worktree_id {
                        selection.entry_id != entry.id
                    } else {
                        true
                    }
                }) && entry.is_file()
                    && self
                        .diagnostics
                        .get(&(worktree_id, entry.path.clone()))
                        .is_some_and(|severity| action.severity.matches(*severity))
            },
            cx,
        );

        if let Some(selection) = selection {
            self.selection = Some(selection);
            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
            self.update_visible_entries(
                Some((selection.worktree_id, selection.entry_id)),
                false,
                true,
                window,
                cx,
            );
            cx.notify();
        }
    }

    fn select_prev_git_entry(
        &mut self,
        _: &SelectPrevGitEntry,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let selection = self.find_entry(
            self.selection.as_ref(),
            true,
            &|entry: GitEntryRef, worktree_id: WorktreeId| {
                (self.selection.is_none()
                    || self.selection.is_some_and(|selection| {
                        if selection.worktree_id == worktree_id {
                            selection.entry_id != entry.id
                        } else {
                            true
                        }
                    }))
                    && entry.is_file()
                    && entry.git_summary.index.modified + entry.git_summary.worktree.modified > 0
            },
            cx,
        );

        if let Some(selection) = selection {
            self.selection = Some(selection);
            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
            self.update_visible_entries(
                Some((selection.worktree_id, selection.entry_id)),
                false,
                true,
                window,
                cx,
            );
            cx.notify();
        }
    }

    fn select_prev_directory(
        &mut self,
        _: &SelectPrevDirectory,
        _: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let selection = self.find_visible_entry(
            self.selection.as_ref(),
            true,
            &|entry: GitEntryRef, worktree_id: WorktreeId| {
                self.selection.is_none_or(|selection| {
                    if selection.worktree_id == worktree_id {
                        selection.entry_id != entry.id
                    } else {
                        true
                    }
                }) && entry.is_dir()
            },
            cx,
        );

        if let Some(selection) = selection {
            self.selection = Some(selection);
            self.autoscroll(cx);
            cx.notify();
        }
    }

    fn select_next_directory(
        &mut self,
        _: &SelectNextDirectory,
        _: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let selection = self.find_visible_entry(
            self.selection.as_ref(),
            false,
            &|entry: GitEntryRef, worktree_id: WorktreeId| {
                self.selection.is_none_or(|selection| {
                    if selection.worktree_id == worktree_id {
                        selection.entry_id != entry.id
                    } else {
                        true
                    }
                }) && entry.is_dir()
            },
            cx,
        );

        if let Some(selection) = selection {
            self.selection = Some(selection);
            self.autoscroll(cx);
            cx.notify();
        }
    }

    fn select_next_git_entry(
        &mut self,
        _: &SelectNextGitEntry,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let selection = self.find_entry(
            self.selection.as_ref(),
            false,
            &|entry: GitEntryRef, worktree_id: WorktreeId| {
                self.selection.is_none_or(|selection| {
                    if selection.worktree_id == worktree_id {
                        selection.entry_id != entry.id
                    } else {
                        true
                    }
                }) && entry.is_file()
                    && entry.git_summary.index.modified + entry.git_summary.worktree.modified > 0
            },
            cx,
        );

        if let Some(selection) = selection {
            self.selection = Some(selection);
            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
            self.update_visible_entries(
                Some((selection.worktree_id, selection.entry_id)),
                false,
                true,
                window,
                cx,
            );
            cx.notify();
        }
    }

    fn select_parent(&mut self, _: &SelectParent, window: &mut Window, cx: &mut Context<Self>) {
        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
            if let Some(parent) = entry.path.parent() {
                let worktree = worktree.read(cx);
                if let Some(parent_entry) = worktree.entry_for_path(parent) {
                    self.selection = Some(SelectedEntry {
                        worktree_id: worktree.id(),
                        entry_id: parent_entry.id,
                    });
                    self.autoscroll(cx);
                    cx.notify();
                }
            }
        } else {
            self.select_first(&SelectFirst {}, window, cx);
        }
    }

    fn select_first(&mut self, _: &SelectFirst, window: &mut Window, cx: &mut Context<Self>) {
        if let Some(VisibleEntriesForWorktree {
            worktree_id,
            entries,
            ..
        }) = self.state.visible_entries.first()
            && let Some(entry) = entries.first()
        {
            let selection = SelectedEntry {
                worktree_id: *worktree_id,
                entry_id: entry.id,
            };
            self.selection = Some(selection);
            if window.modifiers().shift {
                self.marked_entries.push(selection);
            }
            self.autoscroll(cx);
            cx.notify();
        }
    }

    fn select_last(&mut self, _: &SelectLast, _: &mut Window, cx: &mut Context<Self>) {
        if let Some(VisibleEntriesForWorktree {
            worktree_id,
            entries,
            ..
        }) = self.state.visible_entries.last()
        {
            let worktree = self.project.read(cx).worktree_for_id(*worktree_id, cx);
            if let (Some(worktree), Some(entry)) = (worktree, entries.last()) {
                let worktree = worktree.read(cx);
                if let Some(entry) = worktree.entry_for_id(entry.id) {
                    let selection = SelectedEntry {
                        worktree_id: *worktree_id,
                        entry_id: entry.id,
                    };
                    self.selection = Some(selection);
                    self.autoscroll(cx);
                    cx.notify();
                }
            }
        }
    }

    fn autoscroll(&mut self, cx: &mut Context<Self>) {
        if let Some((_, _, index)) = self.selection.and_then(|s| self.index_for_selection(s)) {
            self.scroll_handle.scroll_to_item_with_offset(
                index,
                ScrollStrategy::Center,
                self.sticky_items_count,
            );
            cx.notify();
        }
    }

    fn cut(&mut self, _: &Cut, _: &mut Window, cx: &mut Context<Self>) {
        let entries = self.disjoint_effective_entries(cx);
        if !entries.is_empty() {
            self.write_entries_to_system_clipboard(&entries, cx);
            self.clipboard = Some(ClipboardEntry::Cut(entries));
            cx.notify();
        }
    }

    fn copy(&mut self, _: &Copy, _: &mut Window, cx: &mut Context<Self>) {
        let entries = self.disjoint_effective_entries(cx);
        if !entries.is_empty() {
            self.write_entries_to_system_clipboard(&entries, cx);
            self.clipboard = Some(ClipboardEntry::Copied(entries));
            cx.notify();
        }
    }

    fn create_paste_path(
        &self,
        source: &SelectedEntry,
        (worktree, target_entry): (Entity<Worktree>, &Entry),
        cx: &App,
    ) -> Option<(Arc<RelPath>, Option<Range<usize>>)> {
        let mut new_path = target_entry.path.to_rel_path_buf();
        // If we're pasting into a file, or a directory into itself, go up one level.
        if target_entry.is_file() || (target_entry.is_dir() && target_entry.id == source.entry_id) {
            new_path.pop();
        }

        let source_worktree = self
            .project
            .read(cx)
            .worktree_for_entry(source.entry_id, cx)?;
        let source_entry = source_worktree.read(cx).entry_for_id(source.entry_id)?;

        let clipboard_entry_file_name = source_entry.path.file_name()?.to_string();
        new_path.push(RelPath::unix(&clipboard_entry_file_name).unwrap());

        let (extension, file_name_without_extension) = if source_entry.is_file() {
            (
                new_path.extension().map(|s| s.to_string()),
                new_path.file_stem()?.to_string(),
            )
        } else {
            (None, clipboard_entry_file_name.clone())
        };

        let file_name_len = file_name_without_extension.len();
        let mut disambiguation_range = None;
        let mut ix = 0;
        {
            let worktree = worktree.read(cx);
            while worktree.entry_for_path(&new_path).is_some() {
                new_path.pop();

                let mut new_file_name = file_name_without_extension.to_string();

                let disambiguation = " copy";
                let mut disambiguation_len = disambiguation.len();

                new_file_name.push_str(disambiguation);

                if ix > 0 {
                    let extra_disambiguation = format!(" {}", ix);
                    disambiguation_len += extra_disambiguation.len();
                    new_file_name.push_str(&extra_disambiguation);
                }
                if let Some(extension) = extension.as_ref() {
                    new_file_name.push_str(".");
                    new_file_name.push_str(extension);
                }

                new_path.push(RelPath::unix(&new_file_name).unwrap());

                disambiguation_range = Some(0..(file_name_len + disambiguation_len));
                ix += 1;
            }
        }
        Some((new_path.as_rel_path().into(), disambiguation_range))
    }

    fn paste(&mut self, _: &Paste, window: &mut Window, cx: &mut Context<Self>) {
        if let Some(external_paths) = self.external_paths_from_system_clipboard(cx) {
            let target_entry_id = self
                .selection
                .map(|s| s.entry_id)
                .or(self.state.last_worktree_root_id);
            if let Some(entry_id) = target_entry_id {
                self.drop_external_files(external_paths.paths(), entry_id, window, cx);
            }
            return;
        }

        maybe!({
            let (worktree, entry) = self.selected_entry_handle(cx)?;
            let entry = entry.clone();
            let worktree_id = worktree.read(cx).id();
            let clipboard_entries = self
                .clipboard
                .as_ref()
                .filter(|clipboard| !clipboard.items().is_empty())?;

            enum PasteTask {
                Rename {
                    task: Task<Result<CreatedEntry>>,
                    from: ProjectPath,
                    to: ProjectPath,
                },
                Copy {
                    task: Task<Result<Option<Entry>>>,
                    destination: ProjectPath,
                },
            }

            let mut paste_tasks = Vec::new();
            let mut disambiguation_range = None;
            let clip_is_cut = clipboard_entries.is_cut();
            for clipboard_entry in clipboard_entries.items() {
                let (new_path, new_disambiguation_range) =
                    self.create_paste_path(clipboard_entry, self.selected_sub_entry(cx)?, cx)?;
                let clip_entry_id = clipboard_entry.entry_id;
                let destination: ProjectPath = (worktree_id, new_path).into();
                let task = if clipboard_entries.is_cut() {
                    let original_path = self.project.read(cx).path_for_entry(clip_entry_id, cx)?;
                    let task = self.project.update(cx, |project, cx| {
                        project.rename_entry(clip_entry_id, destination.clone(), cx)
                    });
                    PasteTask::Rename {
                        task,
                        from: original_path,
                        to: destination,
                    }
                } else {
                    let task = self.project.update(cx, |project, cx| {
                        project.copy_entry(clip_entry_id, destination.clone(), cx)
                    });
                    PasteTask::Copy { task, destination }
                };
                paste_tasks.push(task);
                disambiguation_range = new_disambiguation_range.or(disambiguation_range);
            }

            let item_count = paste_tasks.len();
            let workspace = self.workspace.clone();

            cx.spawn_in(window, async move |project_panel, mut cx| {
                let mut last_succeed = None;
                let mut changes = Vec::new();

                for task in paste_tasks {
                    match task {
                        PasteTask::Rename { task, from, to } => {
                            if let Some(CreatedEntry::Included(entry)) = task
                                .await
                                .notify_workspace_async_err(workspace.clone(), &mut cx)
                            {
                                changes.push(Change::Renamed(from, to));
                                last_succeed = Some(entry);
                            }
                        }
                        PasteTask::Copy { task, destination } => {
                            if let Some(Some(entry)) = task
                                .await
                                .notify_workspace_async_err(workspace.clone(), &mut cx)
                            {
                                changes.push(Change::Created(destination));
                                last_succeed = Some(entry);
                            }
                        }
                    }
                }

                project_panel
                    .update(cx, |this, _| {
                        this.undo_manager.record(changes).log_err();
                    })
                    .ok();

                // update selection
                if let Some(entry) = last_succeed {
                    project_panel
                        .update_in(cx, |project_panel, window, cx| {
                            project_panel.selection = Some(SelectedEntry {
                                worktree_id,
                                entry_id: entry.id,
                            });

                            if item_count == 1 {
                                // open entry if not dir, setting is enabled, and only focus if rename is not pending
                                if !entry.is_dir() {
                                    let settings = ProjectPanelSettings::get_global(cx);
                                    if settings.auto_open.should_open_on_paste() {
                                        project_panel.open_entry(
                                            entry.id,
                                            disambiguation_range.is_none(),
                                            false,
                                            cx,
                                        );
                                    }
                                }

                                // if only one entry was pasted and it was disambiguated, open the rename editor
                                if disambiguation_range.is_some() {
                                    cx.defer_in(window, |this, window, cx| {
                                        this.rename_impl(disambiguation_range, window, cx);
                                    });
                                }
                            }
                        })
                        .ok();
                }

                anyhow::Ok(())
            })
            .detach_and_log_err(cx);

            if clip_is_cut {
                // Convert the clipboard cut entry to a copy entry after the first paste.
                self.clipboard = self.clipboard.take().map(ClipboardEntry::into_copy_entry);
            }

            self.expand_entry(worktree_id, entry.id, cx);
            Some(())
        });
    }

    fn download_from_remote(
        &mut self,
        _: &DownloadFromRemote,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let entries = self.effective_entries();
        if entries.is_empty() {
            return;
        }

        let project = self.project.read(cx);

        // Collect file entries with their worktree_id, path, and relative path for destination
        // For directories, we collect all files under them recursively
        let mut files_to_download: Vec<(WorktreeId, Arc<RelPath>, PathBuf)> = Vec::new();

        for selected in entries.iter() {
            let Some(worktree) = project.worktree_for_id(selected.worktree_id, cx) else {
                continue;
            };
            let worktree = worktree.read(cx);
            let Some(entry) = worktree.entry_for_id(selected.entry_id) else {
                continue;
            };

            if entry.is_file() {
                // Single file: use just the filename
                let filename = entry
                    .path
                    .file_name()
                    .map(str::to_string)
                    .unwrap_or_default();
                files_to_download.push((
                    selected.worktree_id,
                    entry.path.clone(),
                    PathBuf::from(filename),
                ));
            } else if entry.is_dir() {
                // Directory: collect all files recursively, preserving relative paths
                let dir_name = entry
                    .path
                    .file_name()
                    .map(str::to_string)
                    .unwrap_or_default();
                let base_path = entry.path.clone();

                // Use traverse_from_path to iterate all entries under this directory
                let mut traversal = worktree.traverse_from_path(true, true, true, &entry.path);
                while let Some(child_entry) = traversal.entry() {
                    // Stop when we're no longer under the directory
                    if !child_entry.path.starts_with(&base_path) {
                        break;
                    }

                    if child_entry.is_file() {
                        // Calculate relative path from the directory root
                        let relative_path = child_entry
                            .path
                            .strip_prefix(&base_path)
                            .map(|p| PathBuf::from(dir_name.clone()).join(p.as_unix_str()))
                            .unwrap_or_else(|_| {
                                PathBuf::from(
                                    child_entry
                                        .path
                                        .file_name()
                                        .map(str::to_string)
                                        .unwrap_or_default(),
                                )
                            });
                        files_to_download.push((
                            selected.worktree_id,
                            child_entry.path.clone(),
                            relative_path,
                        ));
                    }
                    traversal.advance();
                }
            }
        }

        if files_to_download.is_empty() {
            return;
        }

        let total_files = files_to_download.len();
        let workspace = self.workspace.clone();

        let destination_dir = cx.prompt_for_paths(PathPromptOptions {
            files: false,
            directories: true,
            multiple: false,
            prompt: Some("Download".into()),
        });

        let fs = self.fs.clone();
        let notification_id =
            workspace::notifications::NotificationId::Named("download-progress".into());
        cx.spawn_in(window, async move |this, cx| {
            if let Ok(Ok(Some(mut paths))) = destination_dir.await {
                if let Some(dest_dir) = paths.pop() {
                    // Show initial toast
                    workspace
                        .update(cx, |workspace, cx| {
                            workspace.show_toast(
                                workspace::Toast::new(
                                    notification_id.clone(),
                                    format!("Downloading 0/{} files...", total_files),
                                ),
                                cx,
                            );
                        })
                        .ok();

                    for (index, (worktree_id, entry_path, relative_path)) in
                        files_to_download.into_iter().enumerate()
                    {
                        // Update progress toast
                        workspace
                            .update(cx, |workspace, cx| {
                                workspace.show_toast(
                                    workspace::Toast::new(
                                        notification_id.clone(),
                                        format!(
                                            "Downloading {}/{} files...",
                                            index + 1,
                                            total_files
                                        ),
                                    ),
                                    cx,
                                );
                            })
                            .ok();

                        let destination_path = dest_dir.join(&relative_path);

                        // Create parent directories if needed
                        if let Some(parent) = destination_path.parent() {
                            if !parent.exists() {
                                fs.create_dir(parent).await.log_err();
                            }
                        }

                        let download_task = this.update(cx, |this, cx| {
                            let project = this.project.clone();
                            project.update(cx, |project, cx| {
                                project.download_file(worktree_id, entry_path, destination_path, cx)
                            })
                        });
                        if let Ok(task) = download_task {
                            task.await.log_err();
                        }
                    }

                    // Show completion toast
                    workspace
                        .update(cx, |workspace, cx| {
                            workspace.show_toast(
                                workspace::Toast::new(
                                    notification_id.clone(),
                                    format!("Downloaded {} files", total_files),
                                ),
                                cx,
                            );
                        })
                        .ok();
                }
            }
        })
        .detach();
    }

    fn duplicate(&mut self, _: &Duplicate, window: &mut Window, cx: &mut Context<Self>) {
        self.copy(&Copy {}, window, cx);
        self.paste(&Paste {}, window, cx);
    }

    fn copy_path(
        &mut self,
        _: &zed_actions::workspace::CopyPath,
        _: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let abs_file_paths = {
            let project = self.project.read(cx);
            self.effective_entries()
                .into_iter()
                .filter_map(|entry| {
                    let entry_path = project.path_for_entry(entry.entry_id, cx)?.path;
                    Some(
                        project
                            .worktree_for_id(entry.worktree_id, cx)?
                            .read(cx)
                            .absolutize(&entry_path)
                            .to_string_lossy()
                            .to_string(),
                    )
                })
                .collect::<Vec<_>>()
        };
        if !abs_file_paths.is_empty() {
            cx.write_to_clipboard(ClipboardItem::new_string(abs_file_paths.join("\n")));
        }
    }

    fn copy_relative_path(
        &mut self,
        _: &zed_actions::workspace::CopyRelativePath,
        _: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let path_style = self.project.read(cx).path_style(cx);
        let file_paths = {
            let project = self.project.read(cx);
            self.effective_entries()
                .into_iter()
                .filter_map(|entry| {
                    Some(
                        project
                            .path_for_entry(entry.entry_id, cx)?
                            .path
                            .display(path_style)
                            .into_owned(),
                    )
                })
                .collect::<Vec<_>>()
        };
        if !file_paths.is_empty() {
            cx.write_to_clipboard(ClipboardItem::new_string(file_paths.join("\n")));
        }
    }

    fn reveal_in_finder(
        &mut self,
        _: &RevealInFileManager,
        _: &mut Window,
        cx: &mut Context<Self>,
    ) {
        if let Some(path) = self.reveal_in_file_manager_path(cx) {
            self.project
                .update(cx, |project, cx| project.reveal_path(&path, cx));
        }
    }

    fn remove_from_project(
        &mut self,
        _: &RemoveFromProject,
        _window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        for entry in self.effective_entries().iter() {
            let worktree_id = entry.worktree_id;
            self.project
                .update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
        }
    }

    fn file_abs_paths_to_diff(&self, cx: &Context<Self>) -> Option<(PathBuf, PathBuf)> {
        let mut selections_abs_path = self
            .marked_entries
            .iter()
            .filter_map(|entry| {
                let project = self.project.read(cx);
                let worktree = project.worktree_for_id(entry.worktree_id, cx)?;
                let entry = worktree.read(cx).entry_for_id(entry.entry_id)?;
                if !entry.is_file() {
                    return None;
                }
                Some(worktree.read(cx).absolutize(&entry.path))
            })
            .rev();

        let last_path = selections_abs_path.next()?;
        let previous_to_last = selections_abs_path.next()?;
        Some((previous_to_last, last_path))
    }

    fn compare_marked_files(
        &mut self,
        _: &CompareMarkedFiles,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let selected_files = self.file_abs_paths_to_diff(cx);
        if let Some((file_path1, file_path2)) = selected_files {
            self.workspace
                .update(cx, |workspace, cx| {
                    FileDiffView::open(file_path1, file_path2, workspace.weak_handle(), window, cx)
                        .detach_and_log_err(cx);
                })
                .ok();
        }
    }

    fn open_system(&mut self, _: &OpenWithSystem, _: &mut Window, cx: &mut Context<Self>) {
        if let Some((worktree, entry)) = self.selected_entry(cx) {
            let abs_path = worktree.absolutize(&entry.path);
            cx.open_with_system(&abs_path);
        }
    }

    fn open_in_terminal(
        &mut self,
        _: &OpenInTerminal,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
            let abs_path = match &entry.canonical_path {
                Some(canonical_path) => canonical_path.to_path_buf(),
                None => worktree.read(cx).absolutize(&entry.path),
            };

            let working_directory = if entry.is_dir() {
                Some(abs_path)
            } else {
                abs_path.parent().map(|path| path.to_path_buf())
            };
            if let Some(working_directory) = working_directory {
                window.dispatch_action(
                    workspace::OpenTerminal {
                        working_directory,
                        local: false,
                    }
                    .boxed_clone(),
                    cx,
                )
            }
        }
    }

    pub fn new_search_in_directory(
        &mut self,
        _: &NewSearchInDirectory,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
            let dir_path = if entry.is_dir() {
                entry.path.clone()
            } else {
                // entry is a file, use its parent directory
                match entry.path.parent() {
                    Some(parent) => Arc::from(parent),
                    None => {
                        // File at root, open search with empty filter
                        self.workspace
                            .update(cx, |workspace, cx| {
                                search::ProjectSearchView::new_search_in_directory(
                                    workspace,
                                    RelPath::empty(),
                                    window,
                                    cx,
                                );
                            })
                            .ok();
                        return;
                    }
                }
            };

            let include_root = self.project.read(cx).visible_worktrees(cx).count() > 1;
            let dir_path = if include_root {
                worktree.read(cx).root_name().join(&dir_path)
            } else {
                dir_path
            };

            self.workspace
                .update(cx, |workspace, cx| {
                    search::ProjectSearchView::new_search_in_directory(
                        workspace, &dir_path, window, cx,
                    );
                })
                .ok();
        }
    }

    fn move_entry(
        &mut self,
        entry_to_move: ProjectEntryId,
        destination: ProjectEntryId,
        destination_is_file: bool,
        cx: &mut Context<Self>,
    ) -> Option<Task<Result<CreatedEntry>>> {
        if self
            .project
            .read(cx)
            .entry_is_worktree_root(entry_to_move, cx)
        {
            self.move_worktree_root(entry_to_move, destination, cx);
            None
        } else {
            self.move_worktree_entry(entry_to_move, destination, destination_is_file, cx)
        }
    }

    fn move_worktree_root(
        &mut self,
        entry_to_move: ProjectEntryId,
        destination: ProjectEntryId,
        cx: &mut Context<Self>,
    ) {
        self.project.update(cx, |project, cx| {
            let Some(worktree_to_move) = project.worktree_for_entry(entry_to_move, cx) else {
                return;
            };
            let Some(destination_worktree) = project.worktree_for_entry(destination, cx) else {
                return;
            };

            let worktree_id = worktree_to_move.read(cx).id();
            let destination_id = destination_worktree.read(cx).id();

            project
                .move_worktree(worktree_id, destination_id, cx)
                .log_err();
        });
    }

    fn move_worktree_entry(
        &mut self,
        entry_to_move: ProjectEntryId,
        destination_entry: ProjectEntryId,
        destination_is_file: bool,
        cx: &mut Context<Self>,
    ) -> Option<Task<Result<CreatedEntry>>> {
        if entry_to_move == destination_entry {
            return None;
        }

        let (destination_worktree, rename_task) = self.project.update(cx, |project, cx| {
            let Some(source_path) = project.path_for_entry(entry_to_move, cx) else {
                return (None, None);
            };
            let Some(destination_path) = project.path_for_entry(destination_entry, cx) else {
                return (None, None);
            };
            let destination_worktree_id = destination_path.worktree_id;

            let destination_dir = if destination_is_file {
                destination_path.path.parent().unwrap_or(RelPath::empty())
            } else {
                destination_path.path.as_ref()
            };

            let Some(source_name) = source_path.path.file_name() else {
                return (None, None);
            };
            let Ok(source_name) = RelPath::unix(source_name) else {
                return (None, None);
            };

            let mut new_path = destination_dir.to_rel_path_buf();
            new_path.push(source_name);
            let rename_task = (new_path.as_rel_path() != source_path.path.as_ref()).then(|| {
                project.rename_entry(
                    entry_to_move,
                    (destination_worktree_id, new_path).into(),
                    cx,
                )
            });

            (
                project.worktree_id_for_entry(destination_entry, cx),
                rename_task,
            )
        });

        if let Some(destination_worktree) = destination_worktree {
            self.expand_entry(destination_worktree, destination_entry, cx);
        }
        rename_task
    }

    fn index_for_selection(&self, selection: SelectedEntry) -> Option<(usize, usize, usize)> {
        self.index_for_entry(selection.entry_id, selection.worktree_id)
    }

    fn disjoint_effective_entries(&self, cx: &App) -> BTreeSet<SelectedEntry> {
        self.disjoint_entries(self.effective_entries(), cx)
    }

    fn disjoint_entries(
        &self,
        entries: BTreeSet<SelectedEntry>,
        cx: &App,
    ) -> BTreeSet<SelectedEntry> {
        let mut sanitized_entries = BTreeSet::new();
        if entries.is_empty() {
            return sanitized_entries;
        }

        let project = self.project.read(cx);
        let entries_by_worktree: HashMap<WorktreeId, Vec<SelectedEntry>> = entries
            .into_iter()
            .filter(|entry| !project.entry_is_worktree_root(entry.entry_id, cx))
            .fold(HashMap::default(), |mut map, entry| {
                map.entry(entry.worktree_id).or_default().push(entry);
                map
            });

        for (worktree_id, worktree_entries) in entries_by_worktree {
            if let Some(worktree) = project.worktree_for_id(worktree_id, cx) {
                let worktree = worktree.read(cx);
                let dir_paths = worktree_entries
                    .iter()
                    .filter_map(|entry| {
                        worktree.entry_for_id(entry.entry_id).and_then(|entry| {
                            if entry.is_dir() {
                                Some(entry.path.as_ref())
                            } else {
                                None
                            }
                        })
                    })
                    .collect::<BTreeSet<_>>();

                sanitized_entries.extend(worktree_entries.into_iter().filter(|entry| {
                    let Some(entry_info) = worktree.entry_for_id(entry.entry_id) else {
                        return false;
                    };
                    let entry_path = entry_info.path.as_ref();
                    let inside_selected_dir = dir_paths.iter().any(|&dir_path| {
                        entry_path != dir_path && entry_path.starts_with(dir_path)
                    });
                    !inside_selected_dir
                }));
            }
        }

        sanitized_entries
    }

    fn effective_entries(&self) -> BTreeSet<SelectedEntry> {
        if let Some(selection) = self.selection {
            let selection = SelectedEntry {
                entry_id: self.resolve_entry(selection.entry_id),
                worktree_id: selection.worktree_id,
            };

            // Default to using just the selected item when nothing is marked.
            if self.marked_entries.is_empty() {
                return BTreeSet::from([selection]);
            }

            // Allow operating on the selected item even when something else is marked,
            // making it easier to perform one-off actions without clearing a mark.
            if self.marked_entries.len() == 1 && !self.marked_entries.contains(&selection) {
                return BTreeSet::from([selection]);
            }
        }

        // Return only marked entries since we've already handled special cases where
        // only selection should take precedence. At this point, marked entries may or
        // may not include the current selection, which is intentional.
        self.marked_entries
            .iter()
            .map(|entry| SelectedEntry {
                entry_id: self.resolve_entry(entry.entry_id),
                worktree_id: entry.worktree_id,
            })
            .collect::<BTreeSet<_>>()
    }

    /// Finds the currently selected subentry for a given leaf entry id. If a given entry
    /// has no ancestors, the project entry ID that's passed in is returned as-is.
    fn resolve_entry(&self, id: ProjectEntryId) -> ProjectEntryId {
        self.state
            .ancestors
            .get(&id)
            .and_then(|ancestors| ancestors.active_ancestor())
            .unwrap_or(id)
    }

    pub fn selected_entry<'a>(&self, cx: &'a App) -> Option<(&'a Worktree, &'a project::Entry)> {
        let (worktree, entry) = self.selected_entry_handle(cx)?;
        Some((worktree.read(cx), entry))
    }

    /// Compared to selected_entry, this function resolves to the currently
    /// selected subentry if dir auto-folding is enabled.
    fn selected_sub_entry<'a>(
        &self,
        cx: &'a App,
    ) -> Option<(Entity<Worktree>, &'a project::Entry)> {
        let (worktree, mut entry) = self.selected_entry_handle(cx)?;

        let resolved_id = self.resolve_entry(entry.id);
        if resolved_id != entry.id {
            let worktree = worktree.read(cx);
            entry = worktree.entry_for_id(resolved_id)?;
        }
        Some((worktree, entry))
    }

    fn reveal_in_file_manager_path(&self, cx: &App) -> Option<PathBuf> {
        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
            return Some(worktree.read(cx).absolutize(&entry.path));
        }

        let root_entry_id = self.state.last_worktree_root_id?;
        let project = self.project.read(cx);
        let worktree = project.worktree_for_entry(root_entry_id, cx)?;
        let worktree = worktree.read(cx);
        let root_entry = worktree.entry_for_id(root_entry_id)?;
        Some(worktree.absolutize(&root_entry.path))
    }

    fn write_entries_to_system_clipboard(&self, entries: &BTreeSet<SelectedEntry>, cx: &mut App) {
        let project = self.project.read(cx);
        let paths: Vec<String> = entries
            .iter()
            .filter_map(|entry| {
                let worktree = project.worktree_for_id(entry.worktree_id, cx)?;
                let worktree = worktree.read(cx);
                let worktree_entry = worktree.entry_for_id(entry.entry_id)?;
                Some(
                    worktree
                        .abs_path()
                        .join(worktree_entry.path.as_std_path())
                        .to_string_lossy()
                        .to_string(),
                )
            })
            .collect();
        if !paths.is_empty() {
            cx.write_to_clipboard(ClipboardItem::new_string(paths.join("\n")));
        }
    }

    fn external_paths_from_system_clipboard(&self, cx: &App) -> Option<ExternalPaths> {
        let clipboard_item = cx.read_from_clipboard()?;
        for entry in clipboard_item.entries() {
            if let GpuiClipboardEntry::ExternalPaths(paths) = entry {
                if !paths.paths().is_empty() {
                    return Some(paths.clone());
                }
            }
        }
        None
    }

    fn has_pasteable_content(&self, cx: &App) -> bool {
        if self
            .clipboard
            .as_ref()
            .is_some_and(|c| !c.items().is_empty())
        {
            return true;
        }
        self.external_paths_from_system_clipboard(cx).is_some()
    }

    fn selected_entry_handle<'a>(
        &self,
        cx: &'a App,
    ) -> Option<(Entity<Worktree>, &'a project::Entry)> {
        let selection = self.selection?;
        let project = self.project.read(cx);
        let worktree = project.worktree_for_id(selection.worktree_id, cx)?;
        let entry = worktree.read(cx).entry_for_id(selection.entry_id)?;
        Some((worktree, entry))
    }

    fn expand_to_selection(&mut self, cx: &mut Context<Self>) -> Option<()> {
        let (worktree, entry) = self.selected_entry(cx)?;
        let expanded_dir_ids = self
            .state
            .expanded_dir_ids
            .entry(worktree.id())
            .or_default();

        for path in entry.path.ancestors() {
            let Some(entry) = worktree.entry_for_path(path) else {
                continue;
            };
            if entry.is_dir()
                && let Err(idx) = expanded_dir_ids.binary_search(&entry.id)
            {
                expanded_dir_ids.insert(idx, entry.id);
            }
        }

        Some(())
    }

    fn create_new_git_entry(
        parent_entry: &Entry,
        git_summary: GitSummary,
        new_entry_kind: EntryKind,
    ) -> GitEntry {
        GitEntry {
            entry: Entry {
                id: NEW_ENTRY_ID,
                kind: new_entry_kind,
                path: parent_entry.path.join(RelPath::unix("\0").unwrap()),
                inode: 0,
                mtime: parent_entry.mtime,
                size: parent_entry.size,
                is_ignored: parent_entry.is_ignored,
                is_hidden: parent_entry.is_hidden,
                is_external: false,
                is_private: false,
                is_always_included: parent_entry.is_always_included,
                canonical_path: parent_entry.canonical_path.clone(),
                char_bag: parent_entry.char_bag,
                is_fifo: parent_entry.is_fifo,
            },
            git_summary,
        }
    }

    fn update_visible_entries(
        &mut self,
        new_selected_entry: Option<(WorktreeId, ProjectEntryId)>,
        focus_filename_editor: bool,
        autoscroll: bool,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let now = Instant::now();
        let settings = ProjectPanelSettings::get_global(cx);
        let auto_collapse_dirs = settings.auto_fold_dirs;
        let hide_gitignore = settings.hide_gitignore;
        let sort_mode = settings.sort_mode;
        let sort_order = settings.sort_order;
        let project = self.project.read(cx);
        let repo_snapshots = project.git_store().read(cx).repo_snapshots(cx);

        let old_ancestors = self.state.ancestors.clone();
        let temporary_unfolded_pending_state = self.state.temporarily_unfolded_pending_state.take();
        let mut new_state = State::derive(&self.state);
        new_state.last_worktree_root_id = project
            .visible_worktrees(cx)
            .next_back()
            .and_then(|worktree| worktree.read(cx).root_entry())
            .map(|entry| entry.id);
        let mut max_width_item = None;

        let visible_worktrees: Vec<_> = project
            .visible_worktrees(cx)
            .map(|worktree| worktree.read(cx).snapshot())
            .collect();
        let hide_root = settings.hide_root && visible_worktrees.len() == 1;
        let hide_hidden = settings.hide_hidden;

        let visible_entries_task = cx.spawn_in(window, async move |this, cx| {
            let new_state = cx
                .background_spawn(async move {
                    for worktree_snapshot in visible_worktrees {
                        let worktree_id = worktree_snapshot.id();

                        let mut new_entry_parent_id = None;
                        let mut new_entry_kind = EntryKind::Dir;
                        if let Some(edit_state) = &new_state.edit_state
                            && edit_state.worktree_id == worktree_id
                            && edit_state.is_new_entry()
                        {
                            new_entry_parent_id = Some(edit_state.entry_id);
                            new_entry_kind = if edit_state.is_dir {
                                EntryKind::Dir
                            } else {
                                EntryKind::File
                            };
                        }

                        let mut visible_worktree_entries = Vec::new();
                        let mut entry_iter =
                            GitTraversal::new(&repo_snapshots, worktree_snapshot.entries(true, 0));
                        let mut auto_folded_ancestors = vec![];
                        let worktree_abs_path = worktree_snapshot.abs_path();
                        while let Some(entry) = entry_iter.entry() {
                            if hide_root && Some(entry.entry) == worktree_snapshot.root_entry() {
                                if new_entry_parent_id == Some(entry.id) {
                                    visible_worktree_entries.push(Self::create_new_git_entry(
                                        entry.entry,
                                        entry.git_summary,
                                        new_entry_kind,
                                    ));
                                    new_entry_parent_id = None;
                                }
                                entry_iter.advance();
                                continue;
                            }
                            if auto_collapse_dirs && entry.kind.is_dir() {
                                auto_folded_ancestors.push(entry.id);
                                if !new_state.is_unfolded(&entry.id)
                                    && let Some(root_path) = worktree_snapshot.root_entry()
                                {
                                    let mut child_entries =
                                        worktree_snapshot.child_entries(&entry.path);
                                    if let Some(child) = child_entries.next()
                                        && entry.path != root_path.path
                                        && child_entries.next().is_none()
                                        && child.kind.is_dir()
                                    {
                                        entry_iter.advance();

                                        continue;
                                    }
                                }
                                let depth = temporary_unfolded_pending_state
                                    .as_ref()
                                    .and_then(|state| {
                                        if state.previously_focused_leaf_entry.worktree_id
                                            == worktree_id
                                            && state.previously_focused_leaf_entry.entry_id
                                                == entry.id
                                        {
                                            auto_folded_ancestors.iter().rev().position(|id| {
                                                *id == state.temporarily_unfolded_active_entry_id
                                            })
                                        } else {
                                            None
                                        }
                                    })
                                    .unwrap_or_else(|| {
                                        old_ancestors
                                            .get(&entry.id)
                                            .map(|ancestor| ancestor.current_ancestor_depth)
                                            .unwrap_or_default()
                                    })
                                    .min(auto_folded_ancestors.len());
                                if let Some(edit_state) = &mut new_state.edit_state
                                    && edit_state.entry_id == entry.id
                                {
                                    edit_state.depth = depth;
                                }
                                let mut ancestors = std::mem::take(&mut auto_folded_ancestors);
                                if ancestors.len() > 1 {
                                    ancestors.reverse();
                                    new_state.ancestors.insert(
                                        entry.id,
                                        FoldedAncestors {
                                            current_ancestor_depth: depth,
                                            ancestors,
                                        },
                                    );
                                }
                            }
                            auto_folded_ancestors.clear();
                            if (!hide_gitignore || !entry.is_ignored)
                                && (!hide_hidden || !entry.is_hidden)
                            {
                                visible_worktree_entries.push(entry.to_owned());
                            }
                            let precedes_new_entry = if let Some(new_entry_id) = new_entry_parent_id
                            {
                                entry.id == new_entry_id || {
                                    new_state.ancestors.get(&entry.id).is_some_and(|entries| {
                                        entries.ancestors.contains(&new_entry_id)
                                    })
                                }
                            } else {
                                false
                            };
                            if precedes_new_entry
                                && (!hide_gitignore || !entry.is_ignored)
                                && (!hide_hidden || !entry.is_hidden)
                            {
                                visible_worktree_entries.push(Self::create_new_git_entry(
                                    entry.entry,
                                    entry.git_summary,
                                    new_entry_kind,
                                ));
                            }

                            let (depth, chars) = if Some(entry.entry)
                                == worktree_snapshot.root_entry()
                            {
                                let Some(path_name) = worktree_abs_path.file_name() else {
                                    entry_iter.advance();
                                    continue;
                                };
                                let depth = 0;
                                (depth, path_name.to_string_lossy().chars().count())
                            } else if entry.is_file() {
                                let Some(path_name) = entry
                                    .path
                                    .file_name()
                                    .with_context(|| {
                                        format!("Non-root entry has no file name: {entry:?}")
                                    })
                                    .log_err()
                                else {
                                    continue;
                                };
                                let depth = entry.path.ancestors().count() - 1;
                                (depth, path_name.chars().count())
                            } else {
                                let path = new_state
                                    .ancestors
                                    .get(&entry.id)
                                    .and_then(|ancestors| {
                                        let outermost_ancestor = ancestors.ancestors.last()?;
                                        let root_folded_entry = worktree_snapshot
                                            .entry_for_id(*outermost_ancestor)?
                                            .path
                                            .as_ref();
                                        entry.path.strip_prefix(root_folded_entry).ok().and_then(
                                            |suffix| {
                                                Some(
                                                    RelPath::unix(root_folded_entry.file_name()?)
                                                        .unwrap()
                                                        .join(suffix),
                                                )
                                            },
                                        )
                                    })
                                    .or_else(|| {
                                        entry.path.file_name().map(|file_name| {
                                            RelPath::unix(file_name).unwrap().into()
                                        })
                                    })
                                    .unwrap_or_else(|| entry.path.clone());
                                let depth = path.components().count();
                                (depth, path.as_unix_str().chars().count())
                            };
                            let width_estimate =
                                item_width_estimate(depth, chars, entry.canonical_path.is_some());

                            match max_width_item.as_mut() {
                                Some((id, worktree_id, width)) => {
                                    if *width < width_estimate {
                                        *id = entry.id;
                                        *worktree_id = worktree_snapshot.id();
                                        *width = width_estimate;
                                    }
                                }
                                None => {
                                    max_width_item =
                                        Some((entry.id, worktree_snapshot.id(), width_estimate))
                                }
                            }

                            let expanded_dir_ids =
                                match new_state.expanded_dir_ids.entry(worktree_id) {
                                    hash_map::Entry::Occupied(e) => e.into_mut(),
                                    hash_map::Entry::Vacant(e) => {
                                        // The first time a worktree's root entry becomes available,
                                        // mark that root entry as expanded.
                                        if let Some(entry) = worktree_snapshot.root_entry() {
                                            e.insert(vec![entry.id]).as_slice()
                                        } else {
                                            &[]
                                        }
                                    }
                                };

                            if expanded_dir_ids.binary_search(&entry.id).is_err()
                                && entry_iter.advance_to_sibling()
                            {
                                continue;
                            }
                            entry_iter.advance();
                        }

                        par_sort_worktree_entries(
                            &mut visible_worktree_entries,
                            sort_mode,
                            sort_order,
                        );
                        new_state.visible_entries.push(VisibleEntriesForWorktree {
                            worktree_id,
                            entries: visible_worktree_entries,
                            index: OnceCell::new(),
                        })
                    }
                    if let Some((project_entry_id, worktree_id, _)) = max_width_item {
                        let mut visited_worktrees_length = 0;
                        let index = new_state
                            .visible_entries
                            .iter()
                            .find_map(|visible_entries| {
                                if worktree_id == visible_entries.worktree_id {
                                    visible_entries
                                        .entries
                                        .iter()
                                        .position(|entry| entry.id == project_entry_id)
                                } else {
                                    visited_worktrees_length += visible_entries.entries.len();
                                    None
                                }
                            });
                        if let Some(index) = index {
                            new_state.max_width_item_index = Some(visited_worktrees_length + index);
                        }
                    }
                    new_state
                })
                .await;
            this.update_in(cx, |this, window, cx| {
                this.state = new_state;
                if let Some((worktree_id, entry_id)) = new_selected_entry {
                    this.selection = Some(SelectedEntry {
                        worktree_id,
                        entry_id,
                    });
                }
                let elapsed = now.elapsed();
                if this.last_reported_update.elapsed() > Duration::from_secs(3600) {
                    telemetry::event!(
                        "Project Panel Updated",
                        elapsed_ms = elapsed.as_millis() as u64,
                        worktree_entries = this
                            .state
                            .visible_entries
                            .iter()
                            .map(|worktree| worktree.entries.len())
                            .sum::<usize>(),
                    )
                }
                if this.update_visible_entries_task.focus_filename_editor {
                    this.update_visible_entries_task.focus_filename_editor = false;
                    this.filename_editor.update(cx, |editor, cx| {
                        window.focus(&editor.focus_handle(cx), cx);
                    });
                }
                if this.update_visible_entries_task.autoscroll {
                    this.update_visible_entries_task.autoscroll = false;
                    this.autoscroll(cx);
                }
                cx.notify();
            })
            .ok();
        });

        self.update_visible_entries_task = UpdateVisibleEntriesTask {
            _visible_entries_task: visible_entries_task,
            focus_filename_editor: focus_filename_editor
                || self.update_visible_entries_task.focus_filename_editor,
            autoscroll: autoscroll || self.update_visible_entries_task.autoscroll,
        };
    }

    fn expand_entry(
        &mut self,
        worktree_id: WorktreeId,
        entry_id: ProjectEntryId,
        cx: &mut Context<Self>,
    ) {
        self.project.update(cx, |project, cx| {
            if let Some((worktree, expanded_dir_ids)) = project
                .worktree_for_id(worktree_id, cx)
                .zip(self.state.expanded_dir_ids.get_mut(&worktree_id))
            {
                project.expand_entry(worktree_id, entry_id, cx);
                let worktree = worktree.read(cx);

                if let Some(mut entry) = worktree.entry_for_id(entry_id) {
                    loop {
                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
                            expanded_dir_ids.insert(ix, entry.id);
                        }

                        if let Some(parent_entry) =
                            entry.path.parent().and_then(|p| worktree.entry_for_path(p))
                        {
                            entry = parent_entry;
                        } else {
                            break;
                        }
                    }
                }
            }
        });
    }

    fn drop_external_files(
        &mut self,
        paths: &[PathBuf],
        entry_id: ProjectEntryId,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let mut paths: Vec<Arc<Path>> = paths.iter().map(|path| Arc::from(path.clone())).collect();

        let open_file_after_drop = paths.len() == 1 && paths[0].is_file();

        let Some((target_directory, worktree, fs)) = maybe!({
            let project = self.project.read(cx);
            let fs = project.fs().clone();
            let worktree = project.worktree_for_entry(entry_id, cx)?;
            let entry = worktree.read(cx).entry_for_id(entry_id)?;
            let path = entry.path.clone();
            let target_directory = if entry.is_dir() {
                path
            } else {
                path.parent()?.into()
            };
            Some((target_directory, worktree, fs))
        }) else {
            return;
        };

        let mut paths_to_replace = Vec::new();
        for path in &paths {
            if let Some(name) = path.file_name()
                && let Some(name) = name.to_str()
            {
                let target_path = target_directory.join(RelPath::unix(name).unwrap());
                if worktree.read(cx).entry_for_path(&target_path).is_some() {
                    paths_to_replace.push((name.to_string(), path.clone()));
                }
            }
        }

        cx.spawn_in(window, async move |this, cx| {
            async move {
                for (filename, original_path) in &paths_to_replace {
                    let prompt_message = format!(
                        concat!(
                            "A file or folder with name {} ",
                            "already exists in the destination folder. ",
                            "Do you want to replace it?"
                        ),
                        filename
                    );
                    let answer = cx
                        .update(|window, cx| {
                            window.prompt(
                                PromptLevel::Info,
                                &prompt_message,
                                None,
                                &["Replace", "Cancel"],
                                cx,
                            )
                        })?
                        .await?;

                    if answer == 1
                        && let Some(item_idx) = paths.iter().position(|p| p == original_path)
                    {
                        paths.remove(item_idx);
                    }
                }

                if paths.is_empty() {
                    return Ok(());
                }

                let (worktree_id, task) = worktree.update(cx, |worktree, cx| {
                    (
                        worktree.id(),
                        worktree.copy_external_entries(target_directory, paths, fs, cx),
                    )
                });

                let opened_entries: Vec<_> = task
                    .await
                    .with_context(|| "failed to copy external paths")?;
                this.update_in(cx, |this, window, cx| {
                    let mut did_open = false;
                    if open_file_after_drop && !opened_entries.is_empty() {
                        let settings = ProjectPanelSettings::get_global(cx);
                        if settings.auto_open.should_open_on_drop() {
                            this.open_entry(opened_entries[0], true, false, cx);
                            did_open = true;
                        }
                    }

                    if !did_open {
                        let new_selection = opened_entries
                            .last()
                            .map(|&entry_id| (worktree_id, entry_id));
                        for &entry_id in &opened_entries {
                            this.expand_entry(worktree_id, entry_id, cx);
                        }
                        this.marked_entries.clear();
                        this.update_visible_entries(new_selection, false, false, window, cx);
                    }

                    let changes: Vec<Change> = opened_entries
                        .iter()
                        .filter_map(|entry_id| {
                            worktree.read(cx).entry_for_id(*entry_id).map(|entry| {
                                Change::Created(ProjectPath {
                                    worktree_id,
                                    path: entry.path.clone(),
                                })
                            })
                        })
                        .collect();

                    this.undo_manager.record(changes).log_err();
                })
            }
            .log_err()
            .await
        })
        .detach();
    }

    fn refresh_drag_cursor_style(
        &self,
        modifiers: &Modifiers,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        if let Some(existing_cursor) = cx.active_drag_cursor_style() {
            let new_cursor = if Self::is_copy_modifier_set(modifiers) {
                CursorStyle::DragCopy
            } else {
                CursorStyle::PointingHand
            };
            if existing_cursor != new_cursor {
                cx.set_active_drag_cursor_style(new_cursor, window);
            }
        }
    }

    fn is_copy_modifier_set(modifiers: &Modifiers) -> bool {
        cfg!(target_os = "macos") && modifiers.alt
            || cfg!(not(target_os = "macos")) && modifiers.control
    }

    fn drag_onto(
        &mut self,
        selections: &DraggedSelection,
        target_entry_id: ProjectEntryId,
        is_file: bool,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let resolved_selections = selections
            .items()
            .map(|entry| SelectedEntry {
                entry_id: self.resolve_entry(entry.entry_id),
                worktree_id: entry.worktree_id,
            })
            .collect::<BTreeSet<SelectedEntry>>();
        let entries = self.disjoint_entries(resolved_selections, cx);

        if Self::is_copy_modifier_set(&window.modifiers()) {
            let _ = maybe!({
                let project = self.project.read(cx);
                let target_worktree = project.worktree_for_entry(target_entry_id, cx)?;
                let worktree_id = target_worktree.read(cx).id();
                let target_entry = target_worktree
                    .read(cx)
                    .entry_for_id(target_entry_id)?
                    .clone();

                let mut copy_tasks = Vec::new();
                let mut disambiguation_range = None;
                for selection in &entries {
                    let (new_path, new_disambiguation_range) = self.create_paste_path(
                        selection,
                        (target_worktree.clone(), &target_entry),
                        cx,
                    )?;

                    let task = self.project.update(cx, |project, cx| {
                        project.copy_entry(selection.entry_id, (worktree_id, new_path).into(), cx)
                    });
                    copy_tasks.push(task);
                    disambiguation_range = new_disambiguation_range.or(disambiguation_range);
                }

                let item_count = copy_tasks.len();

                cx.spawn_in(window, async move |project_panel, cx| {
                    let mut last_succeed = None;
                    let mut changes = Vec::new();
                    for task in copy_tasks.into_iter() {
                        if let Some(Some(entry)) = task.await.log_err() {
                            last_succeed = Some(entry.id);
                            changes.push(Change::Created((worktree_id, entry.path).into()));
                        }
                    }
                    // update selection
                    if let Some(entry_id) = last_succeed {
                        project_panel.update_in(cx, |project_panel, window, cx| {
                            project_panel.selection = Some(SelectedEntry {
                                worktree_id,
                                entry_id,
                            });
                            // if only one entry was dragged and it was disambiguated, open the rename editor
                            if item_count == 1 && disambiguation_range.is_some() {
                                project_panel.rename_impl(disambiguation_range, window, cx);
                            }

                            project_panel.undo_manager.record(changes)
                        })??;
                    }

                    std::result::Result::Ok::<(), anyhow::Error>(())
                })
                .detach();
                Some(())
            });
        } else {
            let update_marks = !self.marked_entries.is_empty();
            let active_selection = selections.active_selection;

            // For folded selections, track the leaf suffix relative to the resolved
            // entry so we can refresh it after the move completes.
            let (folded_selection_info, folded_selection_entries): (
                Vec<(ProjectEntryId, RelPathBuf)>,
                HashSet<SelectedEntry>,
            ) = {
                let project = self.project.read(cx);
                let mut info = Vec::new();
                let mut folded_entries = HashSet::default();

                for selection in selections.items() {
                    let resolved_id = self.resolve_entry(selection.entry_id);
                    if resolved_id == selection.entry_id {
                        continue;
                    }
                    folded_entries.insert(*selection);
                    let Some(source_path) = project.path_for_entry(resolved_id, cx) else {
                        continue;
                    };
                    let Some(leaf_path) = project.path_for_entry(selection.entry_id, cx) else {
                        continue;
                    };
                    let Ok(suffix) = leaf_path.path.strip_prefix(source_path.path.as_ref()) else {
                        continue;
                    };
                    if suffix.as_unix_str().is_empty() {
                        continue;
                    }

                    info.push((resolved_id, suffix.to_rel_path_buf()));
                }
                (info, folded_entries)
            };

            // Capture old paths before moving so we can record undo operations.
            let old_paths: HashMap<ProjectEntryId, ProjectPath> = {
                let project = self.project.read(cx);
                entries
                    .iter()
                    .filter_map(|entry| {
                        let path = project.path_for_entry(entry.entry_id, cx)?;
                        Some((entry.entry_id, path))
                    })
                    .collect()
            };
            let destination_worktree_id = self
                .project
                .read(cx)
                .worktree_for_entry(target_entry_id, cx)
                .map(|wt| wt.read(cx).id());

            // Collect move tasks paired with their source entry ID so we can correlate
            // results with folded selections that need refreshing.
            let mut move_tasks: Vec<(ProjectEntryId, Task<Result<CreatedEntry>>)> = Vec::new();
            for entry in entries {
                if let Some(task) = self.move_entry(entry.entry_id, target_entry_id, is_file, cx) {
                    move_tasks.push((entry.entry_id, task));
                }
            }

            if move_tasks.is_empty() {
                return;
            }

            let workspace = self.workspace.clone();
            if folded_selection_info.is_empty() {
                cx.spawn_in(window, async move |project_panel, mut cx| {
                    let mut changes = Vec::new();
                    for (entry_id, task) in move_tasks {
                        if let Some(CreatedEntry::Included(new_entry)) = task
                            .await
                            .notify_workspace_async_err(workspace.clone(), &mut cx)
                        {
                            if let (Some(old_path), Some(worktree_id)) =
                                (old_paths.get(&entry_id), destination_worktree_id)
                            {
                                changes.push(Change::Renamed(
                                    old_path.clone(),
                                    (worktree_id, new_entry.path).into(),
                                ));
                            }
                        }
                    }
                    project_panel
                        .update(cx, |this, _| {
                            this.undo_manager.record(changes).log_err();
                        })
                        .ok();
                })
                .detach();
            } else {
                cx.spawn_in(window, async move |project_panel, mut cx| {
                    // Await all move tasks and collect successful results
                    let mut move_results: Vec<(ProjectEntryId, Entry)> = Vec::new();
                    let mut operations = Vec::new();
                    for (entry_id, task) in move_tasks {
                        if let Some(CreatedEntry::Included(new_entry)) = task
                            .await
                            .notify_workspace_async_err(workspace.clone(), &mut cx)
                        {
                            if let (Some(old_path), Some(worktree_id)) =
                                (old_paths.get(&entry_id), destination_worktree_id)
                            {
                                operations.push(Change::Renamed(
                                    old_path.clone(),
                                    (worktree_id, new_entry.path.clone()).into(),
                                ));
                            }
                            move_results.push((entry_id, new_entry));
                        }
                    }

                    if move_results.is_empty() {
                        return;
                    }

                    project_panel
                        .update(cx, |this, _| {
                            this.undo_manager.record(operations).log_err();
                        })
                        .ok();

                    // For folded selections, we need to refresh the leaf paths (with suffixes)
                    // because they may not be indexed yet after the parent directory was moved.
                    // First collect the paths to refresh, then refresh them.
                    let paths_to_refresh: Vec<(Entity<Worktree>, Arc<RelPath>)> = project_panel
                        .update(cx, |project_panel, cx| {
                            let project = project_panel.project.read(cx);
                            folded_selection_info
                                .iter()
                                .filter_map(|(resolved_id, suffix)| {
                                    let (_, new_entry) =
                                        move_results.iter().find(|(id, _)| id == resolved_id)?;
                                    let worktree = project.worktree_for_entry(new_entry.id, cx)?;
                                    let leaf_path = new_entry.path.join(suffix);
                                    Some((worktree, leaf_path))
                                })
                                .collect()
                        })
                        .ok()
                        .unwrap_or_default();

                    let refresh_tasks: Vec<_> = paths_to_refresh
                        .into_iter()
                        .filter_map(|(worktree, leaf_path)| {
                            worktree.update(cx, |worktree, cx| {
                                worktree
                                    .as_local_mut()
                                    .map(|local| local.refresh_entry(leaf_path, None, cx))
                            })
                        })
                        .collect();

                    for task in refresh_tasks {
                        task.await.log_err();
                    }

                    if update_marks && !folded_selection_entries.is_empty() {
                        project_panel
                            .update(cx, |project_panel, cx| {
                                project_panel.marked_entries.retain(|entry| {
                                    !folded_selection_entries.contains(entry)
                                        || *entry == active_selection
                                });
                                cx.notify();
                            })
                            .ok();
                    }
                })
                .detach();
            }
        }
    }

    fn index_for_entry(
        &self,
        entry_id: ProjectEntryId,
        worktree_id: WorktreeId,
    ) -> Option<(usize, usize, usize)> {
        let mut total_ix = 0;
        for (worktree_ix, visible) in self.state.visible_entries.iter().enumerate() {
            if worktree_id != visible.worktree_id {
                total_ix += visible.entries.len();
                continue;
            }

            return visible
                .entries
                .iter()
                .enumerate()
                .find(|(_, entry)| entry.id == entry_id)
                .map(|(ix, _)| (worktree_ix, ix, total_ix + ix));
        }
        None
    }

    fn entry_at_index(&self, index: usize) -> Option<(WorktreeId, GitEntryRef<'_>)> {
        let mut offset = 0;
        for worktree in &self.state.visible_entries {
            let current_len = worktree.entries.len();
            if index < offset + current_len {
                return worktree
                    .entries
                    .get(index - offset)
                    .map(|entry| (worktree.worktree_id, entry.to_ref()));
            }
            offset += current_len;
        }
        None
    }

    fn iter_visible_entries(
        &self,
        range: Range<usize>,
        window: &mut Window,
        cx: &mut Context<ProjectPanel>,
        callback: &mut dyn FnMut(
            &Entry,
            usize,
            &HashSet<Arc<RelPath>>,
            &mut Window,
            &mut Context<ProjectPanel>,
        ),
    ) {
        let mut ix = 0;
        for visible in &self.state.visible_entries {
            if ix >= range.end {
                return;
            }

            if ix + visible.entries.len() <= range.start {
                ix += visible.entries.len();
                continue;
            }

            let end_ix = range.end.min(ix + visible.entries.len());
            let entry_range = range.start.saturating_sub(ix)..end_ix - ix;
            let entries = visible
                .index
                .get_or_init(|| visible.entries.iter().map(|e| e.path.clone()).collect());
            let base_index = ix + entry_range.start;
            for (i, entry) in visible.entries[entry_range].iter().enumerate() {
                let global_index = base_index + i;
                callback(entry, global_index, entries, window, cx);
            }
            ix = end_ix;
        }
    }

    fn for_each_visible_entry(
        &self,
        range: Range<usize>,
        window: &mut Window,
        cx: &mut Context<ProjectPanel>,
        callback: &mut dyn FnMut(
            ProjectEntryId,
            EntryDetails,
            &mut Window,
            &mut Context<ProjectPanel>,
        ),
    ) {
        let mut ix = 0;
        for visible in &self.state.visible_entries {
            if ix >= range.end {
                return;
            }

            if ix + visible.entries.len() <= range.start {
                ix += visible.entries.len();
                continue;
            }

            let end_ix = range.end.min(ix + visible.entries.len());
            let git_status_setting = {
                let settings = ProjectPanelSettings::get_global(cx);
                settings.git_status
            };
            if let Some(worktree) = self
                .project
                .read(cx)
                .worktree_for_id(visible.worktree_id, cx)
            {
                let snapshot = worktree.read(cx).snapshot();
                let root_name = snapshot.root_name();

                let entry_range = range.start.saturating_sub(ix)..end_ix - ix;
                let entries = visible
                    .index
                    .get_or_init(|| visible.entries.iter().map(|e| e.path.clone()).collect());
                for entry in visible.entries[entry_range].iter() {
                    let status = git_status_setting
                        .then_some(entry.git_summary)
                        .unwrap_or_default();

                    let mut details = self.details_for_entry(
                        entry,
                        visible.worktree_id,
                        root_name,
                        entries,
                        status,
                        None,
                        window,
                        cx,
                    );

                    if let Some(edit_state) = &self.state.edit_state {
                        let is_edited_entry = if edit_state.is_new_entry() {
                            entry.id == NEW_ENTRY_ID
                        } else {
                            entry.id == edit_state.entry_id
                                || self.state.ancestors.get(&entry.id).is_some_and(
                                    |auto_folded_dirs| {
                                        auto_folded_dirs.ancestors.contains(&edit_state.entry_id)
                                    },
                                )
                        };

                        if is_edited_entry {
                            if let Some(processing_filename) = &edit_state.processing_filename {
                                details.is_processing = true;
                                if let Some(ancestors) = edit_state
                                    .leaf_entry_id
                                    .and_then(|entry| self.state.ancestors.get(&entry))
                                {
                                    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;
                                    let all_components = ancestors.ancestors.len();

                                    let prefix_components = all_components - position;
                                    let suffix_components = position.checked_sub(1);
                                    let mut previous_components =
                                        Path::new(&details.filename).components();
                                    let mut new_path = previous_components
                                        .by_ref()
                                        .take(prefix_components)
                                        .collect::<PathBuf>();
                                    if let Some(last_component) =
                                        processing_filename.components().next_back()
                                    {
                                        new_path.push(last_component);
                                        previous_components.next();
                                    }

                                    if suffix_components.is_some() {
                                        new_path.push(previous_components);
                                    }
                                    if let Some(str) = new_path.to_str() {
                                        details.filename.clear();
                                        details.filename.push_str(str);
                                    }
                                } else {
                                    details.filename.clear();
                                    details.filename.push_str(processing_filename.as_unix_str());
                                }
                            } else {
                                if edit_state.is_new_entry() {
                                    details.filename.clear();
                                }
                                details.is_editing = true;
                            }
                        }
                    }

                    callback(entry.id, details, window, cx);
                }
            }
            ix = end_ix;
        }
    }

    fn find_entry_in_worktree(
        &self,
        worktree_id: WorktreeId,
        reverse_search: bool,
        only_visible_entries: bool,
        predicate: &dyn Fn(GitEntryRef, WorktreeId) -> bool,
        cx: &mut Context<Self>,
    ) -> Option<GitEntry> {
        if only_visible_entries {
            let entries = self
                .state
                .visible_entries
                .iter()
                .find_map(|visible| {
                    if worktree_id == visible.worktree_id {
                        Some(&visible.entries)
                    } else {
                        None
                    }
                })?
                .clone();

            return utils::ReversibleIterable::new(entries.iter(), reverse_search)
                .find(|ele| predicate(ele.to_ref(), worktree_id))
                .cloned();
        }

        let repo_snapshots = self
            .project
            .read(cx)
            .git_store()
            .read(cx)
            .repo_snapshots(cx);
        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
        worktree.read_with(cx, |tree, _| {
            utils::ReversibleIterable::new(
                GitTraversal::new(&repo_snapshots, tree.entries(true, 0usize)),
                reverse_search,
            )
            .find_single_ended(|ele| predicate(*ele, worktree_id))
            .map(|ele| ele.to_owned())
        })
    }

    fn find_entry(
        &self,
        start: Option<&SelectedEntry>,
        reverse_search: bool,
        predicate: &dyn Fn(GitEntryRef, WorktreeId) -> bool,
        cx: &mut Context<Self>,
    ) -> Option<SelectedEntry> {
        let mut worktree_ids: Vec<_> = self
            .state
            .visible_entries
            .iter()
            .map(|worktree| worktree.worktree_id)
            .collect();
        let repo_snapshots = self
            .project
            .read(cx)
            .git_store()
            .read(cx)
            .repo_snapshots(cx);

        let mut last_found: Option<SelectedEntry> = None;

        if let Some(start) = start {
            let worktree = self
                .project
                .read(cx)
                .worktree_for_id(start.worktree_id, cx)?
                .read(cx);

            let search = {
                let entry = worktree.entry_for_id(start.entry_id)?;
                let root_entry = worktree.root_entry()?;
                let tree_id = worktree.id();

                let mut first_iter = GitTraversal::new(
                    &repo_snapshots,
                    worktree.traverse_from_path(true, true, true, entry.path.as_ref()),
                );

                if reverse_search {
                    first_iter.next();
                }

                let first = first_iter
                    .enumerate()
                    .take_until(|(count, entry)| entry.entry == root_entry && *count != 0usize)
                    .map(|(_, entry)| entry)
                    .find(|ele| predicate(*ele, tree_id))
                    .map(|ele| ele.to_owned());

                let second_iter =
                    GitTraversal::new(&repo_snapshots, worktree.entries(true, 0usize));

                let second = if reverse_search {
                    second_iter
                        .take_until(|ele| ele.id == start.entry_id)
                        .filter(|ele| predicate(*ele, tree_id))
                        .last()
                        .map(|ele| ele.to_owned())
                } else {
                    second_iter
                        .take_while(|ele| ele.id != start.entry_id)
                        .filter(|ele| predicate(*ele, tree_id))
                        .last()
                        .map(|ele| ele.to_owned())
                };

                if reverse_search {
                    Some((second, first))
                } else {
                    Some((first, second))
                }
            };

            if let Some((first, second)) = search {
                let first = first.map(|entry| SelectedEntry {
                    worktree_id: start.worktree_id,
                    entry_id: entry.id,
                });

                let second = second.map(|entry| SelectedEntry {
                    worktree_id: start.worktree_id,
                    entry_id: entry.id,
                });

                if first.is_some() {
                    return first;
                }
                last_found = second;

                let idx = worktree_ids
                    .iter()
                    .enumerate()
                    .find(|(_, ele)| **ele == start.worktree_id)
                    .map(|(idx, _)| idx);

                if let Some(idx) = idx {
                    worktree_ids.rotate_left(idx + 1usize);
                    worktree_ids.pop();
                }
            }
        }

        for tree_id in worktree_ids.into_iter() {
            if let Some(found) =
                self.find_entry_in_worktree(tree_id, reverse_search, false, &predicate, cx)
            {
                return Some(SelectedEntry {
                    worktree_id: tree_id,
                    entry_id: found.id,
                });
            }
        }

        last_found
    }

    fn find_visible_entry(
        &self,
        start: Option<&SelectedEntry>,
        reverse_search: bool,
        predicate: &dyn Fn(GitEntryRef, WorktreeId) -> bool,
        cx: &mut Context<Self>,
    ) -> Option<SelectedEntry> {
        let mut worktree_ids: Vec<_> = self
            .state
            .visible_entries
            .iter()
            .map(|worktree| worktree.worktree_id)
            .collect();

        let mut last_found: Option<SelectedEntry> = None;

        if let Some(start) = start {
            let entries = self
                .state
                .visible_entries
                .iter()
                .find(|worktree| worktree.worktree_id == start.worktree_id)
                .map(|worktree| &worktree.entries)?;

            let mut start_idx = entries
                .iter()
                .enumerate()
                .find(|(_, ele)| ele.id == start.entry_id)
                .map(|(idx, _)| idx)?;

            if reverse_search {
                start_idx = start_idx.saturating_add(1usize);
            }

            let (left, right) = entries.split_at_checked(start_idx)?;

            let (first_iter, second_iter) = if reverse_search {
                (
                    utils::ReversibleIterable::new(left.iter(), reverse_search),
                    utils::ReversibleIterable::new(right.iter(), reverse_search),
                )
            } else {
                (
                    utils::ReversibleIterable::new(right.iter(), reverse_search),
                    utils::ReversibleIterable::new(left.iter(), reverse_search),
                )
            };

            let first_search = first_iter.find(|ele| predicate(ele.to_ref(), start.worktree_id));
            let second_search = second_iter.find(|ele| predicate(ele.to_ref(), start.worktree_id));

            if first_search.is_some() {
                return first_search.map(|entry| SelectedEntry {
                    worktree_id: start.worktree_id,
                    entry_id: entry.id,
                });
            }

            last_found = second_search.map(|entry| SelectedEntry {
                worktree_id: start.worktree_id,
                entry_id: entry.id,
            });

            let idx = worktree_ids
                .iter()
                .enumerate()
                .find(|(_, ele)| **ele == start.worktree_id)
                .map(|(idx, _)| idx);

            if let Some(idx) = idx {
                worktree_ids.rotate_left(idx + 1usize);
                worktree_ids.pop();
            }
        }

        for tree_id in worktree_ids.into_iter() {
            if let Some(found) =
                self.find_entry_in_worktree(tree_id, reverse_search, true, &predicate, cx)
            {
                return Some(SelectedEntry {
                    worktree_id: tree_id,
                    entry_id: found.id,
                });
            }
        }

        last_found
    }

    fn calculate_depth_and_difference(
        entry: &Entry,
        visible_worktree_entries: &HashSet<Arc<RelPath>>,
    ) -> (usize, usize) {
        let (depth, difference) = entry
            .path
            .ancestors()
            .skip(1) // Skip the entry itself
            .find_map(|ancestor| {
                if let Some(parent_entry) = visible_worktree_entries.get(ancestor) {
                    let entry_path_components_count = entry.path.components().count();
                    let parent_path_components_count = parent_entry.components().count();
                    let difference = entry_path_components_count - parent_path_components_count;
                    let depth = parent_entry
                        .ancestors()
                        .skip(1)
                        .filter(|ancestor| visible_worktree_entries.contains(*ancestor))
                        .count();
                    Some((depth + 1, difference))
                } else {
                    None
                }
            })
            .unwrap_or_else(|| (0, entry.path.components().count()));

        (depth, difference)
    }

    fn highlight_entry_for_external_drag(
        &self,
        target_entry: &Entry,
        target_worktree: &Worktree,
    ) -> Option<ProjectEntryId> {
        // Always highlight directory or parent directory if it's file
        if target_entry.is_dir() {
            Some(target_entry.id)
        } else {
            target_entry
                .path
                .parent()
                .and_then(|parent_path| target_worktree.entry_for_path(parent_path))
                .map(|parent_entry| parent_entry.id)
        }
    }

    fn highlight_entry_for_selection_drag(
        &self,
        target_entry: &Entry,
        target_worktree: &Worktree,
        drag_state: &DraggedSelection,
        cx: &Context<Self>,
    ) -> Option<ProjectEntryId> {
        let target_parent_path = target_entry.path.parent();

        // In case of single item drag, we do not highlight existing
        // directory which item belongs too
        if drag_state.items().count() == 1
            && drag_state.active_selection.worktree_id == target_worktree.id()
        {
            let active_entry_path = self
                .project
                .read(cx)
                .path_for_entry(drag_state.active_selection.entry_id, cx)?;

            if let Some(active_parent_path) = active_entry_path.path.parent() {
                // Do not highlight active entry parent
                if active_parent_path == target_entry.path.as_ref() {
                    return None;
                }

                // Do not highlight active entry sibling files
                if Some(active_parent_path) == target_parent_path && target_entry.is_file() {
                    return None;
                }
            }
        }

        // Always highlight directory or parent directory if it's file
        if target_entry.is_dir() {
            Some(target_entry.id)
        } else {
            target_parent_path
                .and_then(|parent_path| target_worktree.entry_for_path(parent_path))
                .map(|parent_entry| parent_entry.id)
        }
    }

    fn should_highlight_background_for_selection_drag(
        &self,
        drag_state: &DraggedSelection,
        last_root_id: ProjectEntryId,
        cx: &App,
    ) -> bool {
        // Always highlight for multiple entries
        if drag_state.items().count() > 1 {
            return true;
        }

        // Since root will always have empty relative path
        if let Some(entry_path) = self
            .project
            .read(cx)
            .path_for_entry(drag_state.active_selection.entry_id, cx)
        {
            if let Some(parent_path) = entry_path.path.parent() {
                if !parent_path.is_empty() {
                    return true;
                }
            }
        }

        // If parent is empty, check if different worktree
        if let Some(last_root_worktree_id) = self
            .project
            .read(cx)
            .worktree_id_for_entry(last_root_id, cx)
        {
            if drag_state.active_selection.worktree_id != last_root_worktree_id {
                return true;
            }
        }

        false
    }

    fn render_entry(
        &self,
        entry_id: ProjectEntryId,
        details: EntryDetails,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> Stateful<Div> {
        const GROUP_NAME: &str = "project_entry";

        let kind = details.kind;
        let is_sticky = details.sticky.is_some();
        let sticky_index = details.sticky.as_ref().map(|this| this.sticky_index);
        let settings = ProjectPanelSettings::get_global(cx);
        let show_editor = details.is_editing && !details.is_processing;

        let selection = SelectedEntry {
            worktree_id: details.worktree_id,
            entry_id,
        };

        let is_marked = self.marked_entries.contains(&selection);
        let is_active = self
            .selection
            .is_some_and(|selection| selection.entry_id == entry_id);

        let file_name = details.filename.clone();

        let mut icon = details.icon.clone();
        if settings.file_icons && show_editor && details.kind.is_file() {
            let filename = self.filename_editor.read(cx).text(cx);
            if filename.len() > 2 {
                icon = FileIcons::get_icon(Path::new(&filename), cx);
            }
        }

        let filename_text_color = details.filename_text_color;
        let diagnostic_severity = details.diagnostic_severity;
        let diagnostic_count = details.diagnostic_count;
        let item_colors = get_item_color(is_sticky, cx);

        let canonical_path = details
            .canonical_path
            .as_ref()
            .map(|f| f.to_string_lossy().into_owned());
        let path_style = self.project.read(cx).path_style(cx);
        let path = details.path.clone();
        let path_for_external_paths = path.clone();
        let path_for_dragged_selection = path.clone();

        let depth = details.depth;
        let worktree_id = details.worktree_id;
        let dragged_selection = DraggedSelection {
            active_selection: SelectedEntry {
                worktree_id: selection.worktree_id,
                entry_id: selection.entry_id,
            },
            marked_selections: Arc::from(self.marked_entries.clone()),
        };

        let bg_color = if is_marked {
            item_colors.marked
        } else {
            item_colors.default
        };

        let bg_hover_color = if is_marked {
            item_colors.marked
        } else {
            item_colors.hover
        };

        let validation_color_and_message = if show_editor {
            match self
                .state
                .edit_state
                .as_ref()
                .map_or(ValidationState::None, |e| e.validation_state.clone())
            {
                ValidationState::Error(msg) => Some((Color::Error.color(cx), msg)),
                ValidationState::Warning(msg) => Some((Color::Warning.color(cx), msg)),
                ValidationState::None => None,
            }
        } else {
            None
        };

        let border_color =
            if !self.mouse_down && is_active && self.focus_handle.contains_focused(window, cx) {
                match validation_color_and_message {
                    Some((color, _)) => color,
                    None => item_colors.focused,
                }
            } else {
                bg_color
            };

        let border_hover_color =
            if !self.mouse_down && is_active && self.focus_handle.contains_focused(window, cx) {
                match validation_color_and_message {
                    Some((color, _)) => color,
                    None => item_colors.focused,
                }
            } else {
                bg_hover_color
            };

        let folded_directory_drag_target = self.folded_directory_drag_target;
        let is_highlighted = {
            if let Some(highlight_entry_id) =
                self.drag_target_entry
                    .as_ref()
                    .and_then(|drag_target| match drag_target {
                        DragTarget::Entry {
                            highlight_entry_id, ..
                        } => Some(*highlight_entry_id),
                        DragTarget::Background => self.state.last_worktree_root_id,
                    })
            {
                // Highlight if same entry or it's children
                if entry_id == highlight_entry_id {
                    true
                } else {
                    maybe!({
                        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
                        let highlight_entry = worktree.read(cx).entry_for_id(highlight_entry_id)?;
                        Some(path.starts_with(&highlight_entry.path))
                    })
                    .unwrap_or(false)
                }
            } else {
                false
            }
        };
        let git_indicator = settings
            .git_status_indicator
            .then(|| git_status_indicator(details.git_status))
            .flatten();

        let id: ElementId = if is_sticky {
            SharedString::from(format!("project_panel_sticky_item_{}", entry_id.to_usize())).into()
        } else {
            (entry_id.to_proto() as usize).into()
        };

        div()
            .id(id.clone())
            .relative()
            .group(GROUP_NAME)
            .cursor_pointer()
            .rounded_none()
            .bg(bg_color)
            .border_1()
            .border_r_2()
            .border_color(border_color)
            .hover(|style| style.bg(bg_hover_color).border_color(border_hover_color))
            .when(is_sticky, |this| this.block_mouse_except_scroll())
            .when(!is_sticky, |this| {
                this.when(
                    is_highlighted && folded_directory_drag_target.is_none(),
                    |this| {
                        this.border_color(transparent_white())
                            .bg(item_colors.drag_over)
                    },
                )
                .when(settings.drag_and_drop, |this| {
                    this.on_drag_move::<ExternalPaths>(cx.listener(
                        move |this, event: &DragMoveEvent<ExternalPaths>, _, cx| {
                            let is_current_target =
                                this.drag_target_entry
                                    .as_ref()
                                    .and_then(|entry| match entry {
                                        DragTarget::Entry {
                                            entry_id: target_id,
                                            ..
                                        } => Some(*target_id),
                                        DragTarget::Background { .. } => None,
                                    })
                                    == Some(entry_id);

                            if !event.bounds.contains(&event.event.position) {
                                // Entry responsible for setting drag target is also responsible to
                                // clear it up after drag is out of bounds
                                if is_current_target {
                                    this.drag_target_entry = None;
                                }
                                return;
                            }

                            if is_current_target {
                                return;
                            }

                            this.marked_entries.clear();

                            let Some((entry_id, highlight_entry_id)) = maybe!({
                                let target_worktree = this
                                    .project
                                    .read(cx)
                                    .worktree_for_id(selection.worktree_id, cx)?
                                    .read(cx);
                                let target_entry =
                                    target_worktree.entry_for_path(&path_for_external_paths)?;
                                let highlight_entry_id = this.highlight_entry_for_external_drag(
                                    target_entry,
                                    target_worktree,
                                )?;
                                Some((target_entry.id, highlight_entry_id))
                            }) else {
                                return;
                            };

                            this.drag_target_entry = Some(DragTarget::Entry {
                                entry_id,
                                highlight_entry_id,
                            });
                        },
                    ))
                    .on_drop(cx.listener(
                        move |this, external_paths: &ExternalPaths, window, cx| {
                            this.drag_target_entry = None;
                            this.hover_scroll_task.take();
                            this.drop_external_files(external_paths.paths(), entry_id, window, cx);
                            cx.stop_propagation();
                        },
                    ))
                    .on_drag_move::<DraggedSelection>(cx.listener(
                        move |this, event: &DragMoveEvent<DraggedSelection>, window, cx| {
                            let is_current_target =
                                this.drag_target_entry
                                    .as_ref()
                                    .and_then(|entry| match entry {
                                        DragTarget::Entry {
                                            entry_id: target_id,
                                            ..
                                        } => Some(*target_id),
                                        DragTarget::Background { .. } => None,
                                    })
                                    == Some(entry_id);

                            if !event.bounds.contains(&event.event.position) {
                                // Entry responsible for setting drag target is also responsible to
                                // clear it up after drag is out of bounds
                                if is_current_target {
                                    this.drag_target_entry = None;
                                }
                                return;
                            }

                            if is_current_target {
                                return;
                            }

                            let drag_state = event.drag(cx);

                            if drag_state.items().count() == 1 {
                                this.marked_entries.clear();
                                this.marked_entries.push(drag_state.active_selection);
                            }

                            let Some((entry_id, highlight_entry_id)) = maybe!({
                                let target_worktree = this
                                    .project
                                    .read(cx)
                                    .worktree_for_id(selection.worktree_id, cx)?
                                    .read(cx);
                                let target_entry =
                                    target_worktree.entry_for_path(&path_for_dragged_selection)?;
                                let highlight_entry_id = this.highlight_entry_for_selection_drag(
                                    target_entry,
                                    target_worktree,
                                    drag_state,
                                    cx,
                                )?;
                                Some((target_entry.id, highlight_entry_id))
                            }) else {
                                return;
                            };

                            this.drag_target_entry = Some(DragTarget::Entry {
                                entry_id,
                                highlight_entry_id,
                            });

                            this.hover_expand_task.take();

                            if !kind.is_dir()
                                || this
                                    .state
                                    .expanded_dir_ids
                                    .get(&details.worktree_id)
                                    .is_some_and(|ids| ids.binary_search(&entry_id).is_ok())
                            {
                                return;
                            }

                            let bounds = event.bounds;
                            this.hover_expand_task =
                                Some(cx.spawn_in(window, async move |this, cx| {
                                    cx.background_executor()
                                        .timer(Duration::from_millis(500))
                                        .await;
                                    this.update_in(cx, |this, window, cx| {
                                        this.hover_expand_task.take();
                                        if this.drag_target_entry.as_ref().and_then(|entry| {
                                            match entry {
                                                DragTarget::Entry {
                                                    entry_id: target_id,
                                                    ..
                                                } => Some(*target_id),
                                                DragTarget::Background { .. } => None,
                                            }
                                        }) == Some(entry_id)
                                            && bounds.contains(&window.mouse_position())
                                        {
                                            this.expand_entry(worktree_id, entry_id, cx);
                                            this.update_visible_entries(
                                                Some((worktree_id, entry_id)),
                                                false,
                                                false,
                                                window,
                                                cx,
                                            );
                                            cx.notify();
                                        }
                                    })
                                    .ok();
                                }));
                        },
                    ))
                    .on_drag(dragged_selection, {
                        let active_component =
                            self.state.ancestors.get(&entry_id).and_then(|ancestors| {
                                ancestors.active_component(&details.filename)
                            });
                        move |selection, click_offset, _window, cx| {
                            let filename = active_component
                                .as_ref()
                                .unwrap_or_else(|| &details.filename);
                            cx.new(|_| DraggedProjectEntryView {
                                icon: details.icon.clone(),
                                filename: filename.clone(),
                                click_offset,
                                selection: selection.active_selection,
                                selections: selection.marked_selections.clone(),
                            })
                        }
                    })
                    .on_drop(cx.listener(
                        move |this, selections: &DraggedSelection, window, cx| {
                            this.drag_target_entry = None;
                            this.hover_scroll_task.take();
                            this.hover_expand_task.take();
                            if folded_directory_drag_target.is_some() {
                                return;
                            }
                            this.drag_onto(selections, entry_id, kind.is_file(), window, cx);
                        },
                    ))
                })
            })
            .on_mouse_down(
                MouseButton::Left,
                cx.listener(move |this, _, _, cx| {
                    this.mouse_down = true;
                    cx.propagate();
                }),
            )
            .on_click(
                cx.listener(move |project_panel, event: &gpui::ClickEvent, window, cx| {
                    if event.is_right_click() || event.first_focus() || show_editor {
                        return;
                    }
                    if event.standard_click() {
                        project_panel.mouse_down = false;
                    }
                    cx.stop_propagation();

                    if let Some(selection) =
                        project_panel.selection.filter(|_| event.modifiers().shift)
                    {
                        let current_selection = project_panel.index_for_selection(selection);
                        let clicked_entry = SelectedEntry {
                            entry_id,
                            worktree_id,
                        };
                        let target_selection = project_panel.index_for_selection(clicked_entry);
                        if let Some(((_, _, source_index), (_, _, target_index))) =
                            current_selection.zip(target_selection)
                        {
                            let range_start = source_index.min(target_index);
                            let range_end = source_index.max(target_index) + 1;
                            let mut new_selections = Vec::new();
                            project_panel.for_each_visible_entry(
                                range_start..range_end,
                                window,
                                cx,
                                &mut |entry_id, details, _, _| {
                                    new_selections.push(SelectedEntry {
                                        entry_id,
                                        worktree_id: details.worktree_id,
                                    });
                                },
                            );

                            for selection in &new_selections {
                                if !project_panel.marked_entries.contains(selection) {
                                    project_panel.marked_entries.push(*selection);
                                }
                            }

                            project_panel.selection = Some(clicked_entry);
                            if !project_panel.marked_entries.contains(&clicked_entry) {
                                project_panel.marked_entries.push(clicked_entry);
                            }
                        }
                    } else if event.modifiers().secondary() {
                        if event.click_count() > 1 {
                            project_panel.split_entry(entry_id, false, None, cx);
                        } else {
                            project_panel.selection = Some(selection);
                            if let Some(position) = project_panel
                                .marked_entries
                                .iter()
                                .position(|e| *e == selection)
                            {
                                project_panel.marked_entries.remove(position);
                            } else {
                                project_panel.marked_entries.push(selection);
                            }
                        }
                    } else if kind.is_dir() {
                        project_panel.marked_entries.clear();
                        if is_sticky
                            && let Some((_, _, index)) =
                                project_panel.index_for_entry(entry_id, worktree_id)
                        {
                            project_panel
                                .scroll_handle
                                .scroll_to_item_strict_with_offset(
                                    index,
                                    ScrollStrategy::Top,
                                    sticky_index.unwrap_or(0),
                                );
                            cx.notify();
                            // move down by 1px so that clicked item
                            // don't count as sticky anymore
                            cx.on_next_frame(window, |_, window, cx| {
                                cx.on_next_frame(window, |this, _, cx| {
                                    let mut offset = this.scroll_handle.offset();
                                    offset.y += px(1.);
                                    this.scroll_handle.set_offset(offset);
                                    cx.notify();
                                });
                            });
                            return;
                        }
                        if event.modifiers().alt {
                            project_panel.toggle_expand_all(entry_id, window, cx);
                        } else {
                            project_panel.toggle_expanded(entry_id, window, cx);
                        }
                    } else {
                        let preview_tabs_enabled =
                            PreviewTabsSettings::get_global(cx).enable_preview_from_project_panel;
                        let click_count = event.click_count();
                        let focus_opened_item = click_count > 1;
                        let allow_preview = preview_tabs_enabled && click_count == 1;
                        project_panel.open_entry(entry_id, focus_opened_item, allow_preview, cx);
                    }
                }),
            )
            .child(
                ListItem::new(id)
                    .indent_level(depth)
                    .indent_step_size(px(settings.indent_size))
                    .spacing(match settings.entry_spacing {
                        ProjectPanelEntrySpacing::Comfortable => ListItemSpacing::Dense,
                        ProjectPanelEntrySpacing::Standard => ListItemSpacing::ExtraDense,
                    })
                    .selectable(false)
                    .when(
                        canonical_path.is_some()
                            || diagnostic_count.is_some()
                            || git_indicator.is_some(),
                        |this| {
                            let symlink_element = canonical_path.map(|path| {
                                div()
                                    .id("symlink_icon")
                                    .tooltip(move |_window, cx| {
                                        Tooltip::with_meta(
                                            path.to_string(),
                                            None,
                                            "Symbolic Link",
                                            cx,
                                        )
                                    })
                                    .child(
                                        Icon::new(IconName::ArrowUpRight)
                                            .size(IconSize::Indicator)
                                            .color(filename_text_color),
                                    )
                            });
                            this.end_slot::<AnyElement>(
                                h_flex()
                                    .gap_1()
                                    .flex_none()
                                    .pr_3()
                                    .when_some(diagnostic_count, |this, count| {
                                        this.when(count.error_count > 0, |this| {
                                            this.child(
                                                Label::new(count.capped_error_count())
                                                    .size(LabelSize::Small)
                                                    .color(Color::Error),
                                            )
                                        })
                                        .when(
                                            count.warning_count > 0,
                                            |this| {
                                                this.child(
                                                    Label::new(count.capped_warning_count())
                                                        .size(LabelSize::Small)
                                                        .color(Color::Warning),
                                                )
                                            },
                                        )
                                    })
                                    .when_some(git_indicator, |this, (label, color)| {
                                        let git_indicator = if kind.is_dir() {
                                            Indicator::dot()
                                                .color(Color::Custom(color.color(cx).opacity(0.5)))
                                                .into_any_element()
                                        } else {
                                            Label::new(label)
                                                .size(LabelSize::Small)
                                                .color(color)
                                                .into_any_element()
                                        };

                                        this.child(git_indicator)
                                    })
                                    .when_some(symlink_element, |this, el| this.child(el))
                                    .into_any_element(),
                            )
                        },
                    )
                    .child(if let Some(icon) = &icon {
                        if let Some((_, decoration_color)) =
                            entry_diagnostic_aware_icon_decoration_and_color(diagnostic_severity)
                        {
                            let is_warning = diagnostic_severity
                                .map(|severity| matches!(severity, DiagnosticSeverity::WARNING))
                                .unwrap_or(false);
                            div().child(
                                DecoratedIcon::new(
                                    Icon::from_path(icon.clone()).color(Color::Muted),
                                    Some(
                                        IconDecoration::new(
                                            if kind.is_file() {
                                                if is_warning {
                                                    IconDecorationKind::Triangle
                                                } else {
                                                    IconDecorationKind::X
                                                }
                                            } else {
                                                IconDecorationKind::Dot
                                            },
                                            bg_color,
                                            cx,
                                        )
                                        .group_name(Some(GROUP_NAME.into()))
                                        .knockout_hover_color(bg_hover_color)
                                        .color(decoration_color.color(cx))
                                        .position(Point {
                                            x: px(-2.),
                                            y: px(-2.),
                                        }),
                                    ),
                                )
                                .into_any_element(),
                            )
                        } else {
                            h_flex().child(Icon::from_path(icon.to_string()).color(Color::Muted))
                        }
                    } else if let Some((icon_name, color)) =
                        entry_diagnostic_aware_icon_name_and_color(diagnostic_severity)
                    {
                        h_flex()
                            .size(IconSize::default().rems())
                            .child(Icon::new(icon_name).color(color).size(IconSize::Small))
                    } else {
                        h_flex()
                            .size(IconSize::default().rems())
                            .invisible()
                            .flex_none()
                    })
                    .child(if show_editor {
                        h_flex().h_6().w_full().child(self.filename_editor.clone())
                    } else {
                        h_flex()
                            .h_6()
                            .map(|this| match self.state.ancestors.get(&entry_id) {
                                Some(folded_ancestors) => {
                                    this.children(self.render_folder_elements(
                                        folded_ancestors,
                                        entry_id,
                                        file_name,
                                        path_style,
                                        is_sticky,
                                        kind.is_file(),
                                        is_active || is_marked,
                                        settings.drag_and_drop,
                                        settings.bold_folder_labels,
                                        item_colors.drag_over,
                                        folded_directory_drag_target,
                                        filename_text_color,
                                        cx,
                                    ))
                                }

                                None => this.child(
                                    Label::new(file_name)
                                        .single_line()
                                        .color(filename_text_color)
                                        .when(
                                            settings.bold_folder_labels && kind.is_dir(),
                                            |this| this.weight(FontWeight::SEMIBOLD),
                                        )
                                        .into_any_element(),
                                ),
                            })
                    })
                    .on_secondary_mouse_down(cx.listener(
                        move |this, event: &MouseDownEvent, window, cx| {
                            // Stop propagation to prevent the catch-all context menu for the project
                            // panel from being deployed.
                            cx.stop_propagation();
                            // Some context menu actions apply to all marked entries. If the user
                            // right-clicks on an entry that is not marked, they may not realize the
                            // action applies to multiple entries. To avoid inadvertent changes, all
                            // entries are unmarked.
                            if !this.marked_entries.contains(&selection) {
                                this.marked_entries.clear();
                            }
                            this.deploy_context_menu(event.position, entry_id, window, cx);
                        },
                    ))
                    .overflow_x(),
            )
            .when_some(validation_color_and_message, |this, (color, message)| {
                this.relative().child(deferred(
                    div()
                        .occlude()
                        .absolute()
                        .top_full()
                        .left(px(-1.)) // Used px over rem so that it doesn't change with font size
                        .right(px(-0.5))
                        .py_1()
                        .px_2()
                        .border_1()
                        .border_color(color)
                        .bg(cx.theme().colors().background)
                        .child(
                            Label::new(message)
                                .color(Color::from(color))
                                .size(LabelSize::Small),
                        ),
                ))
            })
    }

    fn render_folder_elements(
        &self,
        folded_ancestors: &FoldedAncestors,
        entry_id: ProjectEntryId,
        file_name: String,
        path_style: PathStyle,
        is_sticky: bool,
        is_file: bool,
        is_active_or_marked: bool,
        drag_and_drop_enabled: bool,
        bold_folder_labels: bool,
        drag_over_color: Hsla,
        folded_directory_drag_target: Option<FoldedDirectoryDragTarget>,
        filename_text_color: Color,
        cx: &Context<Self>,
    ) -> impl Iterator<Item = AnyElement> {
        let components = Path::new(&file_name)
            .components()
            .map(|comp| comp.as_os_str().to_string_lossy().into_owned())
            .collect::<Vec<_>>();
        let active_index = folded_ancestors.active_index();
        let components_len = components.len();
        let delimiter = SharedString::new(path_style.primary_separator());

        let path_component_elements =
            components
                .into_iter()
                .enumerate()
                .map(move |(index, component)| {
                    div()
                        .id(SharedString::from(format!(
                            "project_panel_path_component_{}_{index}",
                            entry_id.to_usize()
                        )))
                        .when(index == 0, |this| this.ml_neg_0p5())
                        .px_0p5()
                        .rounded_xs()
                        .hover(|style| style.bg(cx.theme().colors().element_active))
                        .when(!is_sticky, |div| {
                            div.when(index != components_len - 1, |div| {
                                let target_entry_id = folded_ancestors
                                    .ancestors
                                    .get(components_len - 1 - index)
                                    .cloned();
                                div.when(drag_and_drop_enabled, |div| {
                                    div.on_drag_move(cx.listener(
                                        move |this,
                                              event: &DragMoveEvent<DraggedSelection>,
                                              _,
                                              _| {
                                            if event.bounds.contains(&event.event.position) {
                                                this.folded_directory_drag_target =
                                                    Some(FoldedDirectoryDragTarget {
                                                        entry_id,
                                                        index,
                                                        is_delimiter_target: false,
                                                    });
                                            } else {
                                                let is_current_target = this
                                                    .folded_directory_drag_target
                                                    .as_ref()
                                                    .is_some_and(|target| {
                                                        target.entry_id == entry_id
                                                            && target.index == index
                                                            && !target.is_delimiter_target
                                                    });
                                                if is_current_target {
                                                    this.folded_directory_drag_target = None;
                                                }
                                            }
                                        },
                                    ))
                                    .on_drop(cx.listener(
                                        move |this, selections: &DraggedSelection, window, cx| {
                                            this.hover_scroll_task.take();
                                            this.drag_target_entry = None;
                                            this.folded_directory_drag_target = None;
                                            if let Some(target_entry_id) = target_entry_id {
                                                this.drag_onto(
                                                    selections,
                                                    target_entry_id,
                                                    is_file,
                                                    window,
                                                    cx,
                                                );
                                            }
                                        },
                                    ))
                                    .when(
                                        folded_directory_drag_target.is_some_and(|target| {
                                            target.entry_id == entry_id && target.index == index
                                        }),
                                        |this| this.bg(drag_over_color),
                                    )
                                })
                            })
                        })
                        .on_mouse_down(
                            MouseButton::Left,
                            cx.listener(move |this, _, _, cx| {
                                if let Some(folds) = this.state.ancestors.get_mut(&entry_id) {
                                    if folds.set_active_index(index) {
                                        cx.notify();
                                    }
                                }
                            }),
                        )
                        .on_mouse_down(
                            MouseButton::Right,
                            cx.listener(move |this, _, _, cx| {
                                if let Some(folds) = this.state.ancestors.get_mut(&entry_id) {
                                    if folds.set_active_index(index) {
                                        cx.notify();
                                    }
                                }
                            }),
                        )
                        .child(
                            Label::new(component)
                                .single_line()
                                .color(filename_text_color)
                                .when(bold_folder_labels && !is_file, |this| {
                                    this.weight(FontWeight::SEMIBOLD)
                                })
                                .when(index == active_index && is_active_or_marked, |this| {
                                    this.underline()
                                }),
                        )
                        .into_any()
                });

        let mut separator_index = 0;
        itertools::intersperse_with(path_component_elements, move || {
            separator_index += 1;
            self.render_entry_path_separator(
                entry_id,
                separator_index,
                components_len,
                is_sticky,
                is_file,
                drag_and_drop_enabled,
                filename_text_color,
                &delimiter,
                folded_ancestors,
                cx,
            )
            .into_any()
        })
    }

    fn render_entry_path_separator(
        &self,
        entry_id: ProjectEntryId,
        index: usize,
        components_len: usize,
        is_sticky: bool,
        is_file: bool,
        drag_and_drop_enabled: bool,
        filename_text_color: Color,
        delimiter: &SharedString,
        folded_ancestors: &FoldedAncestors,
        cx: &Context<Self>,
    ) -> Div {
        let delimiter_target_index = index - 1;
        let target_entry_id = folded_ancestors
            .ancestors
            .get(components_len - 1 - delimiter_target_index)
            .cloned();
        div()
            .when(!is_sticky, |div| {
                div.when(drag_and_drop_enabled, |div| {
                    div.on_drop(cx.listener(
                        move |this, selections: &DraggedSelection, window, cx| {
                            this.hover_scroll_task.take();
                            this.drag_target_entry = None;
                            this.folded_directory_drag_target = None;
                            if let Some(target_entry_id) = target_entry_id {
                                this.drag_onto(selections, target_entry_id, is_file, window, cx);
                            }
                        },
                    ))
                    .on_drag_move(cx.listener(
                        move |this, event: &DragMoveEvent<DraggedSelection>, _, _| {
                            if event.bounds.contains(&event.event.position) {
                                this.folded_directory_drag_target =
                                    Some(FoldedDirectoryDragTarget {
                                        entry_id,
                                        index: delimiter_target_index,
                                        is_delimiter_target: true,
                                    });
                            } else {
                                let is_current_target =
                                    this.folded_directory_drag_target.is_some_and(|target| {
                                        target.entry_id == entry_id
                                            && target.index == delimiter_target_index
                                            && target.is_delimiter_target
                                    });
                                if is_current_target {
                                    this.folded_directory_drag_target = None;
                                }
                            }
                        },
                    ))
                })
            })
            .child(
                Label::new(delimiter.clone())
                    .single_line()
                    .color(filename_text_color),
            )
    }

    fn details_for_entry(
        &self,
        entry: &Entry,
        worktree_id: WorktreeId,
        root_name: &RelPath,
        entries_paths: &HashSet<Arc<RelPath>>,
        git_status: GitSummary,
        sticky: Option<StickyDetails>,
        _window: &mut Window,
        cx: &mut Context<Self>,
    ) -> EntryDetails {
        let (show_file_icons, show_folder_icons) = {
            let settings = ProjectPanelSettings::get_global(cx);
            (settings.file_icons, settings.folder_icons)
        };

        let expanded_entry_ids = self
            .state
            .expanded_dir_ids
            .get(&worktree_id)
            .map(Vec::as_slice)
            .unwrap_or(&[]);
        let is_expanded = expanded_entry_ids.binary_search(&entry.id).is_ok();

        let icon = match entry.kind {
            EntryKind::File => {
                if show_file_icons {
                    FileIcons::get_icon(entry.path.as_std_path(), cx)
                } else {
                    None
                }
            }
            _ => {
                if show_folder_icons {
                    FileIcons::get_folder_icon(is_expanded, entry.path.as_std_path(), cx)
                } else {
                    FileIcons::get_chevron_icon(is_expanded, cx)
                }
            }
        };

        let path_style = self.project.read(cx).path_style(cx);
        let (depth, difference) =
            ProjectPanel::calculate_depth_and_difference(entry, entries_paths);

        let filename = if difference > 1 {
            entry
                .path
                .last_n_components(difference)
                .map_or(String::new(), |suffix| {
                    suffix.display(path_style).to_string()
                })
        } else {
            entry
                .path
                .file_name()
                .map(|name| name.to_string())
                .unwrap_or_else(|| root_name.as_unix_str().to_string())
        };

        let selection = SelectedEntry {
            worktree_id,
            entry_id: entry.id,
        };
        let is_marked = self.marked_entries.contains(&selection);
        let is_selected = self.selection == Some(selection);

        let diagnostic_severity = self
            .diagnostics
            .get(&(worktree_id, entry.path.clone()))
            .cloned();

        let diagnostic_count = self
            .diagnostic_counts
            .get(&(worktree_id, entry.path.clone()))
            .copied();

        let filename_text_color =
            entry_git_aware_label_color(git_status, entry.is_ignored, is_marked);

        let is_cut = self
            .clipboard
            .as_ref()
            .is_some_and(|e| e.is_cut() && e.items().contains(&selection));

        EntryDetails {
            filename,
            icon,
            path: entry.path.clone(),
            depth,
            kind: entry.kind,
            is_ignored: entry.is_ignored,
            is_expanded,
            is_selected,
            is_marked,
            is_editing: false,
            is_processing: false,
            is_cut,
            sticky,
            filename_text_color,
            diagnostic_severity,
            diagnostic_count,
            git_status,
            is_private: entry.is_private,
            worktree_id,
            canonical_path: entry.canonical_path.clone(),
        }
    }

    fn dispatch_context(&self, window: &Window, cx: &Context<Self>) -> KeyContext {
        let mut dispatch_context = KeyContext::new_with_defaults();
        dispatch_context.add("ProjectPanel");
        dispatch_context.add("menu");

        let identifier = if self.filename_editor.focus_handle(cx).is_focused(window) {
            "editing"
        } else {
            "not_editing"
        };

        dispatch_context.add(identifier);
        dispatch_context
    }

    fn reveal_entry(
        &mut self,
        project: Entity<Project>,
        entry_id: ProjectEntryId,
        skip_ignored: bool,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> Result<()> {
        let worktree = project
            .read(cx)
            .worktree_for_entry(entry_id, cx)
            .context("can't reveal a non-existent entry in the project panel")?;
        let worktree = worktree.read(cx);
        let worktree_id = worktree.id();
        let is_ignored = worktree
            .entry_for_id(entry_id)
            .is_none_or(|entry| entry.is_ignored && !entry.is_always_included);
        if skip_ignored && is_ignored {
            if self.index_for_entry(entry_id, worktree_id).is_none() {
                anyhow::bail!("can't reveal an ignored entry in the project panel");
            }

            self.selection = Some(SelectedEntry {
                worktree_id,
                entry_id,
            });
            self.marked_entries.clear();
            self.marked_entries.push(SelectedEntry {
                worktree_id,
                entry_id,
            });
            self.autoscroll(cx);
            cx.notify();
            return Ok(());
        }
        let is_active_item_file_diff_view = self
            .workspace
            .upgrade()
            .and_then(|ws| ws.read(cx).active_item(cx))
            .map(|item| item.act_as_type(TypeId::of::<FileDiffView>(), cx).is_some())
            .unwrap_or(false);
        if is_active_item_file_diff_view {
            return Ok(());
        }

        self.expand_entry(worktree_id, entry_id, cx);
        self.update_visible_entries(Some((worktree_id, entry_id)), false, true, window, cx);
        self.marked_entries.clear();
        self.marked_entries.push(SelectedEntry {
            worktree_id,
            entry_id,
        });
        cx.notify();
        Ok(())
    }

    fn find_active_indent_guide(
        &self,
        indent_guides: &[IndentGuideLayout],
        cx: &App,
    ) -> Option<usize> {
        let (worktree, entry) = self.selected_entry(cx)?;

        // Find the parent entry of the indent guide, this will either be the
        // expanded folder we have selected, or the parent of the currently
        // selected file/collapsed directory
        let mut entry = entry;
        loop {
            let is_expanded_dir = entry.is_dir()
                && self
                    .state
                    .expanded_dir_ids
                    .get(&worktree.id())
                    .map(|ids| ids.binary_search(&entry.id).is_ok())
                    .unwrap_or(false);
            if is_expanded_dir {
                break;
            }
            entry = worktree.entry_for_path(&entry.path.parent()?)?;
        }

        let (active_indent_range, depth) = {
            let (worktree_ix, child_offset, ix) = self.index_for_entry(entry.id, worktree.id())?;
            let child_paths = &self.state.visible_entries[worktree_ix].entries;
            let mut child_count = 0;
            let depth = entry.path.ancestors().count();
            while let Some(entry) = child_paths.get(child_offset + child_count + 1) {
                if entry.path.ancestors().count() <= depth {
                    break;
                }
                child_count += 1;
            }

            let start = ix + 1;
            let end = start + child_count;

            let visible_worktree = &self.state.visible_entries[worktree_ix];
            let visible_worktree_entries = visible_worktree.index.get_or_init(|| {
                visible_worktree
                    .entries
                    .iter()
                    .map(|e| e.path.clone())
                    .collect()
            });

            // Calculate the actual depth of the entry, taking into account that directories can be auto-folded.
            let (depth, _) = Self::calculate_depth_and_difference(entry, visible_worktree_entries);
            (start..end, depth)
        };

        let candidates = indent_guides
            .iter()
            .enumerate()
            .filter(|(_, indent_guide)| indent_guide.offset.x == depth);

        for (i, indent) in candidates {
            // Find matches that are either an exact match, partially on screen, or inside the enclosing indent
            if active_indent_range.start <= indent.offset.y + indent.length
                && indent.offset.y <= active_indent_range.end
            {
                return Some(i);
            }
        }
        None
    }

    fn render_sticky_entries(
        &self,
        child: StickyProjectPanelCandidate,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> SmallVec<[AnyElement; 8]> {
        let project = self.project.read(cx);

        let Some((worktree_id, entry_ref)) = self.entry_at_index(child.index) else {
            return SmallVec::new();
        };

        let Some(visible) = self
            .state
            .visible_entries
            .iter()
            .find(|worktree| worktree.worktree_id == worktree_id)
        else {
            return SmallVec::new();
        };

        let Some(worktree) = project.worktree_for_id(worktree_id, cx) else {
            return SmallVec::new();
        };
        let worktree = worktree.read(cx).snapshot();

        let paths = visible
            .index
            .get_or_init(|| visible.entries.iter().map(|e| e.path.clone()).collect());

        let mut sticky_parents = Vec::new();
        let mut current_path = entry_ref.path.clone();

        'outer: loop {
            if let Some(parent_path) = current_path.parent() {
                for ancestor_path in parent_path.ancestors() {
                    if paths.contains(ancestor_path)
                        && let Some(parent_entry) = worktree.entry_for_path(ancestor_path)
                    {
                        sticky_parents.push(parent_entry.clone());
                        current_path = parent_entry.path.clone();
                        continue 'outer;
                    }
                }
            }
            break 'outer;
        }

        if sticky_parents.is_empty() {
            return SmallVec::new();
        }

        sticky_parents.reverse();

        let panel_settings = ProjectPanelSettings::get_global(cx);
        let git_status_enabled = panel_settings.git_status;
        let root_name = worktree.root_name();

        let git_summaries_by_id = if git_status_enabled {
            visible
                .entries
                .iter()
                .map(|e| (e.id, e.git_summary))
                .collect::<HashMap<_, _>>()
        } else {
            Default::default()
        };

        // already checked if non empty above
        let last_item_index = sticky_parents.len() - 1;
        sticky_parents
            .iter()
            .enumerate()
            .map(|(index, entry)| {
                let git_status = git_summaries_by_id
                    .get(&entry.id)
                    .copied()
                    .unwrap_or_default();
                let sticky_details = Some(StickyDetails {
                    sticky_index: index,
                });
                let details = self.details_for_entry(
                    entry,
                    worktree_id,
                    root_name,
                    paths,
                    git_status,
                    sticky_details,
                    window,
                    cx,
                );
                self.render_entry(entry.id, details, window, cx)
                    .when(index == last_item_index, |this| {
                        let shadow_color_top = hsla(0.0, 0.0, 0.0, 0.1);
                        let shadow_color_bottom = hsla(0.0, 0.0, 0.0, 0.);
                        let sticky_shadow = div()
                            .absolute()
                            .left_0()
                            .bottom_neg_1p5()
                            .h_1p5()
                            .w_full()
                            .bg(linear_gradient(
                                0.,
                                linear_color_stop(shadow_color_top, 1.),
                                linear_color_stop(shadow_color_bottom, 0.),
                            ));
                        this.child(sticky_shadow)
                    })
                    .into_any()
            })
            .collect()
    }
}

#[derive(Clone)]
struct StickyProjectPanelCandidate {
    index: usize,
    depth: usize,
}

impl StickyCandidate for StickyProjectPanelCandidate {
    fn depth(&self) -> usize {
        self.depth
    }
}

fn item_width_estimate(depth: usize, item_text_chars: usize, is_symlink: bool) -> usize {
    const ICON_SIZE_FACTOR: usize = 2;
    let mut item_width = depth * ICON_SIZE_FACTOR + item_text_chars;
    if is_symlink {
        item_width += ICON_SIZE_FACTOR;
    }
    item_width
}

impl Render for ProjectPanel {
    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
        let has_worktree = !self.state.visible_entries.is_empty();
        let project = self.project.read(cx);
        let panel_settings = ProjectPanelSettings::get_global(cx);
        let indent_size = panel_settings.indent_size;
        let show_indent_guides = panel_settings.indent_guides.show == ShowIndentGuides::Always;
        let horizontal_scroll = panel_settings.scrollbar.horizontal_scroll;
        let show_sticky_entries = {
            if panel_settings.sticky_scroll {
                let is_scrollable = self.scroll_handle.is_scrollable();
                let is_scrolled = self.scroll_handle.offset().y < px(0.);
                is_scrollable && is_scrolled
            } else {
                false
            }
        };

        let is_local = project.is_local();

        if has_worktree {
            let item_count = self
                .state
                .visible_entries
                .iter()
                .map(|worktree| worktree.entries.len())
                .sum();

            fn handle_drag_move<T: 'static>(
                this: &mut ProjectPanel,
                e: &DragMoveEvent<T>,
                window: &mut Window,
                cx: &mut Context<ProjectPanel>,
            ) {
                if let Some(previous_position) = this.previous_drag_position {
                    // Refresh cursor only when an actual drag happens,
                    // because modifiers are not updated when the cursor is not moved.
                    if e.event.position != previous_position {
                        this.refresh_drag_cursor_style(&e.event.modifiers, window, cx);
                    }
                }
                this.previous_drag_position = Some(e.event.position);

                if !e.bounds.contains(&e.event.position) {
                    this.drag_target_entry = None;
                    return;
                }
                this.hover_scroll_task.take();
                let panel_height = e.bounds.size.height;
                if panel_height <= px(0.) {
                    return;
                }

                let event_offset = e.event.position.y - e.bounds.origin.y;
                // How far along in the project panel is our cursor? (0. is the top of a list, 1. is the bottom)
                let hovered_region_offset = event_offset / panel_height;

                // We want the scrolling to be a bit faster when the cursor is closer to the edge of a list.
                // These pixels offsets were picked arbitrarily.
                let vertical_scroll_offset = if hovered_region_offset <= 0.05 {
                    8.
                } else if hovered_region_offset <= 0.15 {
                    5.
                } else if hovered_region_offset >= 0.95 {
                    -8.
                } else if hovered_region_offset >= 0.85 {
                    -5.
                } else {
                    return;
                };
                let adjustment = point(px(0.), px(vertical_scroll_offset));
                this.hover_scroll_task = Some(cx.spawn_in(window, async move |this, cx| {
                    loop {
                        let should_stop_scrolling = this
                            .update(cx, |this, cx| {
                                this.hover_scroll_task.as_ref()?;
                                let handle = this.scroll_handle.0.borrow_mut();
                                let offset = handle.base_handle.offset();

                                handle.base_handle.set_offset(offset + adjustment);
                                cx.notify();
                                Some(())
                            })
                            .ok()
                            .flatten()
                            .is_some();
                        if should_stop_scrolling {
                            return;
                        }
                        cx.background_executor()
                            .timer(Duration::from_millis(16))
                            .await;
                    }
                }));
            }
            h_flex()
                .id("project-panel")
                .group("project-panel")
                .when(panel_settings.drag_and_drop, |this| {
                    this.on_drag_move(cx.listener(handle_drag_move::<ExternalPaths>))
                        .on_drag_move(cx.listener(handle_drag_move::<DraggedSelection>))
                })
                .size_full()
                .relative()
                .on_modifiers_changed(cx.listener(
                    |this, event: &ModifiersChangedEvent, window, cx| {
                        this.refresh_drag_cursor_style(&event.modifiers, window, cx);
                    },
                ))
                .key_context(self.dispatch_context(window, cx))
                .on_action(cx.listener(Self::scroll_up))
                .on_action(cx.listener(Self::scroll_down))
                .on_action(cx.listener(Self::scroll_cursor_center))
                .on_action(cx.listener(Self::scroll_cursor_top))
                .on_action(cx.listener(Self::scroll_cursor_bottom))
                .on_action(cx.listener(Self::select_next))
                .on_action(cx.listener(Self::select_previous))
                .on_action(cx.listener(Self::select_first))
                .on_action(cx.listener(Self::select_last))
                .on_action(cx.listener(Self::select_parent))
                .on_action(cx.listener(Self::select_next_git_entry))
                .on_action(cx.listener(Self::select_prev_git_entry))
                .on_action(cx.listener(Self::select_next_diagnostic))
                .on_action(cx.listener(Self::select_prev_diagnostic))
                .on_action(cx.listener(Self::select_next_directory))
                .on_action(cx.listener(Self::select_prev_directory))
                .on_action(cx.listener(Self::expand_selected_entry))
                .on_action(cx.listener(Self::collapse_selected_entry))
                .on_action(cx.listener(Self::collapse_all_entries))
                .on_action(cx.listener(Self::collapse_selected_entry_and_children))
                .on_action(cx.listener(Self::open))
                .on_action(cx.listener(Self::open_permanent))
                .on_action(cx.listener(Self::open_split_vertical))
                .on_action(cx.listener(Self::open_split_horizontal))
                .on_action(cx.listener(Self::confirm))
                .on_action(cx.listener(Self::cancel))
                .on_action(cx.listener(Self::copy_path))
                .on_action(cx.listener(Self::copy_relative_path))
                .on_action(cx.listener(Self::new_search_in_directory))
                .on_action(cx.listener(Self::unfold_directory))
                .on_action(cx.listener(Self::fold_directory))
                .on_action(cx.listener(Self::remove_from_project))
                .on_action(cx.listener(Self::compare_marked_files))
                .when(cx.has_flag::<ProjectPanelUndoRedoFeatureFlag>(), |el| {
                    el.on_action(cx.listener(Self::undo))
                        .on_action(cx.listener(Self::redo))
                })
                .when(!project.is_read_only(cx), |el| {
                    el.on_action(cx.listener(Self::new_file))
                        .on_action(cx.listener(Self::new_directory))
                        .on_action(cx.listener(Self::rename))
                        .on_action(cx.listener(Self::delete))
                        .on_action(cx.listener(Self::cut))
                        .on_action(cx.listener(Self::copy))
                        .on_action(cx.listener(Self::paste))
                        .on_action(cx.listener(Self::duplicate))
                        .on_action(cx.listener(Self::restore_file))
                        .on_action(cx.listener(Self::trash))
                })
                .when(
                    project.is_local() || project.is_via_wsl_with_host_interop(cx),
                    |el| {
                        el.on_action(cx.listener(Self::reveal_in_finder))
                            .on_action(cx.listener(Self::open_system))
                            .on_action(cx.listener(Self::open_in_terminal))
                    },
                )
                .when(project.is_via_remote_server(), |el| {
                    el.on_action(cx.listener(Self::open_in_terminal))
                        .on_action(cx.listener(Self::download_from_remote))
                })
                .track_focus(&self.focus_handle(cx))
                .child(
                    v_flex()
                        .child(
                            uniform_list("entries", item_count, {
                                cx.processor(|this, range: Range<usize>, window, cx| {
                                    this.rendered_entries_len = range.end - range.start;
                                    let mut items = Vec::with_capacity(this.rendered_entries_len);
                                    this.for_each_visible_entry(
                                        range,
                                        window,
                                        cx,
                                        &mut |id, details, window, cx| {
                                            items.push(this.render_entry(id, details, window, cx));
                                        },
                                    );
                                    items
                                })
                            })
                            .when(show_indent_guides, |list| {
                                list.with_decoration(
                                    ui::indent_guides(
                                        px(indent_size),
                                        IndentGuideColors::panel(cx),
                                    )
                                    .with_compute_indents_fn(
                                        cx.entity(),
                                        |this, range, window, cx| {
                                            let mut items =
                                                SmallVec::with_capacity(range.end - range.start);
                                            this.iter_visible_entries(
                                                range,
                                                window,
                                                cx,
                                                &mut |entry, _, entries, _, _| {
                                                    let (depth, _) =
                                                        Self::calculate_depth_and_difference(
                                                            entry, entries,
                                                        );
                                                    items.push(depth);
                                                },
                                            );
                                            items
                                        },
                                    )
                                    .on_click(cx.listener(
                                        |this,
                                         active_indent_guide: &IndentGuideLayout,
                                         window,
                                         cx| {
                                            if window.modifiers().secondary() {
                                                let ix = active_indent_guide.offset.y;
                                                let Some((target_entry, worktree)) = maybe!({
                                                    let (worktree_id, entry) =
                                                        this.entry_at_index(ix)?;
                                                    let worktree = this
                                                        .project
                                                        .read(cx)
                                                        .worktree_for_id(worktree_id, cx)?;
                                                    let target_entry = worktree
                                                        .read(cx)
                                                        .entry_for_path(&entry.path.parent()?)?;
                                                    Some((target_entry, worktree))
                                                }) else {
                                                    return;
                                                };

                                                this.collapse_entry(
                                                    target_entry.clone(),
                                                    worktree,
                                                    window,
                                                    cx,
                                                );
                                            }
                                        },
                                    ))
                                    .with_render_fn(
                                        cx.entity(),
                                        move |this, params, _, cx| {
                                            const LEFT_OFFSET: Pixels = px(14.);
                                            const PADDING_Y: Pixels = px(4.);
                                            const HITBOX_OVERDRAW: Pixels = px(3.);

                                            let active_indent_guide_index = this
                                                .find_active_indent_guide(
                                                    &params.indent_guides,
                                                    cx,
                                                );

                                            let indent_size = params.indent_size;
                                            let item_height = params.item_height;

                                            params
                                                .indent_guides
                                                .into_iter()
                                                .enumerate()
                                                .map(|(idx, layout)| {
                                                    let offset = if layout.continues_offscreen {
                                                        px(0.)
                                                    } else {
                                                        PADDING_Y
                                                    };
                                                    let bounds = Bounds::new(
                                                        point(
                                                            layout.offset.x * indent_size
                                                                + LEFT_OFFSET,
                                                            layout.offset.y * item_height + offset,
                                                        ),
                                                        size(
                                                            px(1.),
                                                            layout.length * item_height
                                                                - offset * 2.,
                                                        ),
                                                    );
                                                    ui::RenderedIndentGuide {
                                                        bounds,
                                                        layout,
                                                        is_active: Some(idx)
                                                            == active_indent_guide_index,
                                                        hitbox: Some(Bounds::new(
                                                            point(
                                                                bounds.origin.x - HITBOX_OVERDRAW,
                                                                bounds.origin.y,
                                                            ),
                                                            size(
                                                                bounds.size.width
                                                                    + HITBOX_OVERDRAW * 2.,
                                                                bounds.size.height,
                                                            ),
                                                        )),
                                                    }
                                                })
                                                .collect()
                                        },
                                    ),
                                )
                            })
                            .when(show_sticky_entries, |list| {
                                let sticky_items = ui::sticky_items(
                                    cx.entity(),
                                    |this, range, window, cx| {
                                        let mut items =
                                            SmallVec::with_capacity(range.end - range.start);
                                        this.iter_visible_entries(
                                            range,
                                            window,
                                            cx,
                                            &mut |entry, index, entries, _, _| {
                                                let (depth, _) =
                                                    Self::calculate_depth_and_difference(
                                                        entry, entries,
                                                    );
                                                let candidate =
                                                    StickyProjectPanelCandidate { index, depth };
                                                items.push(candidate);
                                            },
                                        );
                                        items
                                    },
                                    |this, marker_entry, window, cx| {
                                        let sticky_entries =
                                            this.render_sticky_entries(marker_entry, window, cx);
                                        this.sticky_items_count = sticky_entries.len();
                                        sticky_entries
                                    },
                                );
                                list.with_decoration(if show_indent_guides {
                                    sticky_items.with_decoration(
                                        ui::indent_guides(
                                            px(indent_size),
                                            IndentGuideColors::panel(cx),
                                        )
                                        .with_render_fn(
                                            cx.entity(),
                                            move |_, params, _, _| {
                                                const LEFT_OFFSET: Pixels = px(14.);

                                                let indent_size = params.indent_size;
                                                let item_height = params.item_height;

                                                params
                                                    .indent_guides
                                                    .into_iter()
                                                    .map(|layout| {
                                                        let bounds = Bounds::new(
                                                            point(
                                                                layout.offset.x * indent_size
                                                                    + LEFT_OFFSET,
                                                                layout.offset.y * item_height,
                                                            ),
                                                            size(
                                                                px(1.),
                                                                layout.length * item_height,
                                                            ),
                                                        );
                                                        ui::RenderedIndentGuide {
                                                            bounds,
                                                            layout,
                                                            is_active: false,
                                                            hitbox: None,
                                                        }
                                                    })
                                                    .collect()
                                            },
                                        ),
                                    )
                                } else {
                                    sticky_items
                                })
                            })
                            .with_sizing_behavior(ListSizingBehavior::Infer)
                            .with_horizontal_sizing_behavior(if horizontal_scroll {
                                ListHorizontalSizingBehavior::Unconstrained
                            } else {
                                ListHorizontalSizingBehavior::FitList
                            })
                            .when(horizontal_scroll, |list| {
                                list.with_width_from_item(self.state.max_width_item_index)
                            })
                            .track_scroll(&self.scroll_handle),
                        )
                        .child(
                            div()
                                .id("project-panel-blank-area")
                                .block_mouse_except_scroll()
                                .flex_grow()
                                .on_scroll_wheel({
                                    let scroll_handle = self.scroll_handle.clone();
                                    let entity_id = cx.entity().entity_id();
                                    move |event, window, cx| {
                                        let state = scroll_handle.0.borrow();
                                        let base_handle = &state.base_handle;
                                        let current_offset = base_handle.offset();
                                        let max_offset = base_handle.max_offset();
                                        let delta = event.delta.pixel_delta(window.line_height());
                                        let new_offset = (current_offset + delta)
                                            .clamp(&max_offset.neg(), &Point::default());

                                        if new_offset != current_offset {
                                            base_handle.set_offset(new_offset);
                                            cx.notify(entity_id);
                                        }
                                    }
                                })
                                .when(
                                    self.drag_target_entry.as_ref().is_some_and(
                                        |entry| match entry {
                                            DragTarget::Background => true,
                                            DragTarget::Entry {
                                                highlight_entry_id, ..
                                            } => self.state.last_worktree_root_id.is_some_and(
                                                |root_id| *highlight_entry_id == root_id,
                                            ),
                                        },
                                    ),
                                    |div| div.bg(cx.theme().colors().drop_target_background),
                                )
                                .on_drag_move::<ExternalPaths>(cx.listener(
                                    move |this, event: &DragMoveEvent<ExternalPaths>, _, _| {
                                        let Some(_last_root_id) = this.state.last_worktree_root_id
                                        else {
                                            return;
                                        };
                                        if event.bounds.contains(&event.event.position) {
                                            this.drag_target_entry = Some(DragTarget::Background);
                                        } else {
                                            if this.drag_target_entry.as_ref().is_some_and(|e| {
                                                matches!(e, DragTarget::Background)
                                            }) {
                                                this.drag_target_entry = None;
                                            }
                                        }
                                    },
                                ))
                                .on_drag_move::<DraggedSelection>(cx.listener(
                                    move |this, event: &DragMoveEvent<DraggedSelection>, _, cx| {
                                        let Some(last_root_id) = this.state.last_worktree_root_id
                                        else {
                                            return;
                                        };
                                        if event.bounds.contains(&event.event.position) {
                                            let drag_state = event.drag(cx);
                                            if this.should_highlight_background_for_selection_drag(
                                                &drag_state,
                                                last_root_id,
                                                cx,
                                            ) {
                                                this.drag_target_entry =
                                                    Some(DragTarget::Background);
                                            }
                                        } else {
                                            if this.drag_target_entry.as_ref().is_some_and(|e| {
                                                matches!(e, DragTarget::Background)
                                            }) {
                                                this.drag_target_entry = None;
                                            }
                                        }
                                    },
                                ))
                                .on_drop(cx.listener(
                                    move |this, external_paths: &ExternalPaths, window, cx| {
                                        this.drag_target_entry = None;
                                        this.hover_scroll_task.take();
                                        if let Some(entry_id) = this.state.last_worktree_root_id {
                                            this.drop_external_files(
                                                external_paths.paths(),
                                                entry_id,
                                                window,
                                                cx,
                                            );
                                        }
                                        cx.stop_propagation();
                                    },
                                ))
                                .on_drop(cx.listener(
                                    move |this, selections: &DraggedSelection, window, cx| {
                                        this.drag_target_entry = None;
                                        this.hover_scroll_task.take();
                                        if let Some(entry_id) = this.state.last_worktree_root_id {
                                            this.drag_onto(selections, entry_id, false, window, cx);
                                        }
                                        cx.stop_propagation();
                                    },
                                ))
                                .on_click(cx.listener(|this, event, window, cx| {
                                    if matches!(event, gpui::ClickEvent::Keyboard(_)) {
                                        return;
                                    }
                                    cx.stop_propagation();
                                    this.selection = None;
                                    this.marked_entries.clear();
                                    this.focus_handle(cx).focus(window, cx);
                                }))
                                .on_mouse_down(
                                    MouseButton::Right,
                                    cx.listener(move |this, event: &MouseDownEvent, window, cx| {
                                        // When deploying the context menu anywhere below the last project entry,
                                        // act as if the user clicked the root of the last worktree.
                                        if let Some(entry_id) = this.state.last_worktree_root_id {
                                            this.deploy_context_menu(
                                                event.position,
                                                entry_id,
                                                window,
                                                cx,
                                            );
                                        }
                                    }),
                                )
                                .when(!project.is_read_only(cx), |el| {
                                    el.on_click(cx.listener(
                                        |this, event: &gpui::ClickEvent, window, cx| {
                                            if event.click_count() > 1
                                                && let Some(entry_id) =
                                                    this.state.last_worktree_root_id
                                            {
                                                let project = this.project.read(cx);

                                                let worktree_id = if let Some(worktree) =
                                                    project.worktree_for_entry(entry_id, cx)
                                                {
                                                    worktree.read(cx).id()
                                                } else {
                                                    return;
                                                };

                                                this.selection = Some(SelectedEntry {
                                                    worktree_id,
                                                    entry_id,
                                                });

                                                this.new_file(&NewFile, window, cx);
                                            }
                                        },
                                    ))
                                }),
                        )
                        .size_full(),
                )
                .custom_scrollbars(
                    {
                        let mut scrollbars =
                            Scrollbars::for_settings::<ProjectPanelScrollbarProxy>()
                                .tracked_scroll_handle(&self.scroll_handle);
                        if horizontal_scroll {
                            scrollbars = scrollbars.with_track_along(
                                ScrollAxes::Horizontal,
                                cx.theme().colors().panel_background,
                            );
                        }
                        scrollbars.notify_content()
                    },
                    window,
                    cx,
                )
                .children(self.context_menu.as_ref().map(|(menu, position, _)| {
                    deferred(
                        anchored()
                            .position(*position)
                            .anchor(gpui::Corner::TopLeft)
                            .child(menu.clone()),
                    )
                    .with_priority(3)
                }))
        } else {
            let focus_handle = self.focus_handle(cx);

            v_flex()
                .id("empty-project_panel")
                .p_4()
                .size_full()
                .items_center()
                .justify_center()
                .gap_1()
                .track_focus(&self.focus_handle(cx))
                .child(
                    Button::new("open_project", "Open Project")
                        .full_width()
                        .key_binding(KeyBinding::for_action_in(
                            &workspace::Open::default(),
                            &focus_handle,
                            cx,
                        ))
                        .on_click(cx.listener(|this, _, window, cx| {
                            this.workspace
                                .update(cx, |_, cx| {
                                    window.dispatch_action(
                                        workspace::Open::default().boxed_clone(),
                                        cx,
                                    );
                                })
                                .log_err();
                        })),
                )
                .child(
                    h_flex()
                        .w_1_2()
                        .gap_2()
                        .child(Divider::horizontal())
                        .child(Label::new("or").size(LabelSize::XSmall).color(Color::Muted))
                        .child(Divider::horizontal()),
                )
                .child(
                    Button::new("clone_repo", "Clone Repository")
                        .full_width()
                        .on_click(cx.listener(|this, _, window, cx| {
                            this.workspace
                                .update(cx, |_, cx| {
                                    window.dispatch_action(git::Clone.boxed_clone(), cx);
                                })
                                .log_err();
                        })),
                )
                .when(is_local, |div| {
                    div.when(panel_settings.drag_and_drop, |div| {
                        div.drag_over::<ExternalPaths>(|style, _, _, cx| {
                            style.bg(cx.theme().colors().drop_target_background)
                        })
                        .on_drop(cx.listener(
                            move |this, external_paths: &ExternalPaths, window, cx| {
                                this.drag_target_entry = None;
                                this.hover_scroll_task.take();
                                if let Some(task) = this
                                    .workspace
                                    .update(cx, |workspace, cx| {
                                        workspace.open_workspace_for_paths(
                                            OpenMode::Activate,
                                            external_paths.paths().to_owned(),
                                            window,
                                            cx,
                                        )
                                    })
                                    .log_err()
                                {
                                    task.detach_and_log_err(cx);
                                }
                                cx.stop_propagation();
                            },
                        ))
                    })
                })
        }
    }
}

impl Render for DraggedProjectEntryView {
    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
        let ui_font = ThemeSettings::get_global(cx).ui_font.clone();
        h_flex()
            .font(ui_font)
            .pl(self.click_offset.x + px(12.))
            .pt(self.click_offset.y + px(12.))
            .child(
                div()
                    .flex()
                    .gap_1()
                    .items_center()
                    .py_1()
                    .px_2()
                    .rounded_lg()
                    .bg(cx.theme().colors().background)
                    .map(|this| {
                        if self.selections.len() > 1 && self.selections.contains(&self.selection) {
                            this.child(Label::new(format!("{} entries", self.selections.len())))
                        } else {
                            this.child(if let Some(icon) = &self.icon {
                                div().child(Icon::from_path(icon.clone()))
                            } else {
                                div()
                            })
                            .child(Label::new(self.filename.clone()))
                        }
                    }),
            )
    }
}

impl EventEmitter<Event> for ProjectPanel {}

impl EventEmitter<PanelEvent> for ProjectPanel {}

impl Panel for ProjectPanel {
    fn position(&self, _: &Window, cx: &App) -> DockPosition {
        match ProjectPanelSettings::get_global(cx).dock {
            DockSide::Left => DockPosition::Left,
            DockSide::Right => DockPosition::Right,
        }
    }

    fn position_is_valid(&self, position: DockPosition) -> bool {
        matches!(position, DockPosition::Left | DockPosition::Right)
    }

    fn set_position(&mut self, position: DockPosition, _: &mut Window, cx: &mut Context<Self>) {
        settings::update_settings_file(self.fs.clone(), cx, move |settings, _| {
            let dock = match position {
                DockPosition::Left | DockPosition::Bottom => DockSide::Left,
                DockPosition::Right => DockSide::Right,
            };
            settings.project_panel.get_or_insert_default().dock = Some(dock);
        });
    }

    fn default_size(&self, _: &Window, cx: &App) -> Pixels {
        ProjectPanelSettings::get_global(cx).default_width
    }

    fn icon(&self, _: &Window, cx: &App) -> Option<IconName> {
        ProjectPanelSettings::get_global(cx)
            .button
            .then_some(IconName::FileTree)
    }

    fn icon_tooltip(&self, _window: &Window, _cx: &App) -> Option<&'static str> {
        Some("Project Panel")
    }

    fn toggle_action(&self) -> Box<dyn Action> {
        Box::new(ToggleFocus)
    }

    fn persistent_name() -> &'static str {
        "Project Panel"
    }

    fn panel_key() -> &'static str {
        PROJECT_PANEL_KEY
    }

    fn starts_open(&self, _: &Window, cx: &App) -> bool {
        if !ProjectPanelSettings::get_global(cx).starts_open {
            return false;
        }

        let project = &self.project.read(cx);
        project.visible_worktrees(cx).any(|tree| {
            tree.read(cx)
                .root_entry()
                .is_some_and(|entry| entry.is_dir())
        })
    }

    fn activation_priority(&self) -> u32 {
        1
    }
}

impl Focusable for ProjectPanel {
    fn focus_handle(&self, _cx: &App) -> FocusHandle {
        self.focus_handle.clone()
    }
}

impl ClipboardEntry {
    fn is_cut(&self) -> bool {
        matches!(self, Self::Cut { .. })
    }

    fn items(&self) -> &BTreeSet<SelectedEntry> {
        match self {
            ClipboardEntry::Copied(entries) | ClipboardEntry::Cut(entries) => entries,
        }
    }

    fn into_copy_entry(self) -> Self {
        match self {
            ClipboardEntry::Copied(_) => self,
            ClipboardEntry::Cut(entries) => ClipboardEntry::Copied(entries),
        }
    }
}

#[inline]
fn cmp_worktree_entries(
    a: &Entry,
    b: &Entry,
    mode: &settings::ProjectPanelSortMode,
    order: &settings::ProjectPanelSortOrder,
) -> cmp::Ordering {
    let a = (&*a.path, a.is_file());
    let b = (&*b.path, b.is_file());
    util::paths::compare_rel_paths_by(a, b, (*mode).into(), (*order).into())
}

pub fn sort_worktree_entries(
    entries: &mut [impl AsRef<Entry>],
    mode: settings::ProjectPanelSortMode,
    order: settings::ProjectPanelSortOrder,
) {
    entries.sort_by(|lhs, rhs| cmp_worktree_entries(lhs.as_ref(), rhs.as_ref(), &mode, &order));
}

pub fn par_sort_worktree_entries(
    entries: &mut Vec<GitEntry>,
    mode: settings::ProjectPanelSortMode,
    order: settings::ProjectPanelSortOrder,
) {
    entries.par_sort_by(|lhs, rhs| cmp_worktree_entries(lhs, rhs, &mode, &order));
}

fn git_status_indicator(git_status: GitSummary) -> Option<(&'static str, Color)> {
    if git_status.conflict > 0 {
        return Some(("!", Color::Conflict));
    }
    if git_status.untracked > 0 {
        return Some(("U", Color::Created));
    }
    if git_status.worktree.deleted > 0 {
        return Some(("D", Color::Deleted));
    }
    if git_status.worktree.modified > 0 {
        return Some(("M", Color::Warning));
    }
    if git_status.index.deleted > 0 {
        return Some(("D", Color::Deleted));
    }
    if git_status.index.modified > 0 {
        return Some(("M", Color::Modified));
    }
    if git_status.index.added > 0 {
        return Some(("A", Color::Created));
    }
    None
}

#[cfg(test)]
mod project_panel_tests;
mod tests;