workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod invalid_item_view;
    4pub mod item;
    5mod modal_layer;
    6pub mod notifications;
    7pub mod pane;
    8pub mod pane_group;
    9mod path_list;
   10mod persistence;
   11pub mod searchable;
   12pub mod shared_screen;
   13mod status_bar;
   14pub mod tasks;
   15mod theme_preview;
   16mod toast_layer;
   17mod toolbar;
   18mod workspace_settings;
   19
   20pub use crate::notifications::NotificationFrame;
   21pub use dock::Panel;
   22pub use path_list::PathList;
   23pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   24
   25use anyhow::{Context as _, Result, anyhow};
   26use call::{ActiveCall, call_settings::CallSettings};
   27use client::{
   28    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   29    proto::{self, ErrorCode, PanelId, PeerId},
   30};
   31use collections::{HashMap, HashSet, hash_map};
   32use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   33use futures::{
   34    Future, FutureExt, StreamExt,
   35    channel::{
   36        mpsc::{self, UnboundedReceiver, UnboundedSender},
   37        oneshot,
   38    },
   39    future::{Shared, try_join_all},
   40};
   41use gpui::{
   42    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   43    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   44    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   45    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   46    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   47    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   48};
   49pub use history_manager::*;
   50pub use item::{
   51    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   52    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   53};
   54use itertools::Itertools;
   55use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   56pub use modal_layer::*;
   57use node_runtime::NodeRuntime;
   58use notifications::{
   59    DetachAndPromptErr, Notifications, dismiss_app_notification,
   60    simple_message_notification::MessageNotification,
   61};
   62pub use pane::*;
   63pub use pane_group::{
   64    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   65    SplitDirection,
   66};
   67use persistence::{DB, SerializedWindowBounds, model::SerializedWorkspace};
   68pub use persistence::{
   69    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   70    model::{ItemId, SerializedWorkspaceLocation},
   71};
   72use postage::stream::Stream;
   73use project::{
   74    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   75    WorktreeSettings,
   76    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   77    toolchain_store::ToolchainStoreEvent,
   78};
   79use remote::{
   80    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   81    remote_client::ConnectionIdentifier,
   82};
   83use schemars::JsonSchema;
   84use serde::Deserialize;
   85use session::AppSession;
   86use settings::{CenteredPaddingSettings, Settings, SettingsLocation, update_settings_file};
   87use shared_screen::SharedScreen;
   88use sqlez::{
   89    bindable::{Bind, Column, StaticColumnCount},
   90    statement::Statement,
   91};
   92use status_bar::StatusBar;
   93pub use status_bar::StatusItemView;
   94use std::{
   95    any::TypeId,
   96    borrow::Cow,
   97    cell::RefCell,
   98    cmp,
   99    collections::{VecDeque, hash_map::DefaultHasher},
  100    env,
  101    hash::{Hash, Hasher},
  102    path::{Path, PathBuf},
  103    process::ExitStatus,
  104    rc::Rc,
  105    sync::{
  106        Arc, LazyLock, Weak,
  107        atomic::{AtomicBool, AtomicUsize},
  108    },
  109    time::Duration,
  110};
  111use task::{DebugScenario, SpawnInTerminal, TaskContext};
  112use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  113pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  114pub use ui;
  115use ui::{Window, prelude::*};
  116use util::{
  117    ResultExt, TryFutureExt,
  118    paths::{PathStyle, SanitizedPath},
  119    rel_path::RelPath,
  120    serde::default_true,
  121};
  122use uuid::Uuid;
  123pub use workspace_settings::{
  124    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  125    WorkspaceSettings,
  126};
  127use zed_actions::{Spawn, feedback::FileBugReport};
  128
  129use crate::persistence::{
  130    SerializedAxis,
  131    model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  132};
  133use crate::{item::ItemBufferKind, notifications::NotificationId};
  134
  135
  136pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  137
  138static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  139    env::var("ZED_WINDOW_SIZE")
  140        .ok()
  141        .as_deref()
  142        .and_then(parse_pixel_size_env_var)
  143});
  144
  145static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  146    env::var("ZED_WINDOW_POSITION")
  147        .ok()
  148        .as_deref()
  149        .and_then(parse_pixel_position_env_var)
  150});
  151
  152pub trait TerminalProvider {
  153    fn spawn(
  154        &self,
  155        task: SpawnInTerminal,
  156        window: &mut Window,
  157        cx: &mut App,
  158    ) -> Task<Option<Result<ExitStatus>>>;
  159}
  160
  161pub trait DebuggerProvider {
  162    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  163    fn start_session(
  164        &self,
  165        definition: DebugScenario,
  166        task_context: TaskContext,
  167        active_buffer: Option<Entity<Buffer>>,
  168        worktree_id: Option<WorktreeId>,
  169        window: &mut Window,
  170        cx: &mut App,
  171    );
  172
  173    fn spawn_task_or_modal(
  174        &self,
  175        workspace: &mut Workspace,
  176        action: &Spawn,
  177        window: &mut Window,
  178        cx: &mut Context<Workspace>,
  179    );
  180
  181    fn task_scheduled(&self, cx: &mut App);
  182    fn debug_scenario_scheduled(&self, cx: &mut App);
  183    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  184
  185    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  186}
  187
  188actions!(
  189    workspace,
  190    [
  191        /// Activates the next pane in the workspace.
  192        ActivateNextPane,
  193        /// Activates the previous pane in the workspace.
  194        ActivatePreviousPane,
  195        /// Switches to the next window.
  196        ActivateNextWindow,
  197        /// Switches to the previous window.
  198        ActivatePreviousWindow,
  199        /// Adds a folder to the current project.
  200        AddFolderToProject,
  201        /// Clears all notifications.
  202        ClearAllNotifications,
  203        /// Closes the active dock.
  204        CloseActiveDock,
  205        /// Closes all docks.
  206        CloseAllDocks,
  207        /// Toggles all docks.
  208        ToggleAllDocks,
  209        /// Closes the current window.
  210        CloseWindow,
  211        /// Opens the feedback dialog.
  212        Feedback,
  213        /// Follows the next collaborator in the session.
  214        FollowNextCollaborator,
  215        /// Moves the focused panel to the next position.
  216        MoveFocusedPanelToNextPosition,
  217        /// Opens a new terminal in the center.
  218        NewCenterTerminal,
  219        /// Creates a new file.
  220        NewFile,
  221        /// Creates a new file in a vertical split.
  222        NewFileSplitVertical,
  223        /// Creates a new file in a horizontal split.
  224        NewFileSplitHorizontal,
  225        /// Opens a new search.
  226        NewSearch,
  227        /// Opens a new terminal.
  228        NewTerminal,
  229        /// Opens a new window.
  230        NewWindow,
  231        /// Opens a file or directory.
  232        Open,
  233        /// Opens multiple files.
  234        OpenFiles,
  235        /// Opens the current location in terminal.
  236        OpenInTerminal,
  237        /// Opens the component preview.
  238        OpenComponentPreview,
  239        /// Reloads the active item.
  240        ReloadActiveItem,
  241        /// Resets the active dock to its default size.
  242        ResetActiveDockSize,
  243        /// Resets all open docks to their default sizes.
  244        ResetOpenDocksSize,
  245        /// Reloads the application
  246        Reload,
  247        /// Saves the current file with a new name.
  248        SaveAs,
  249        /// Saves without formatting.
  250        SaveWithoutFormat,
  251        /// Shuts down all debug adapters.
  252        ShutdownDebugAdapters,
  253        /// Suppresses the current notification.
  254        SuppressNotification,
  255        /// Toggles the bottom dock.
  256        ToggleBottomDock,
  257        /// Toggles centered layout mode.
  258        ToggleCenteredLayout,
  259        /// Toggles edit prediction feature globally for all files.
  260        ToggleEditPrediction,
  261        /// Toggles the left dock.
  262        ToggleLeftDock,
  263        /// Toggles the right dock.
  264        ToggleRightDock,
  265        /// Toggles zoom on the active pane.
  266        ToggleZoom,
  267        /// Stops following a collaborator.
  268        Unfollow,
  269        /// Restores the banner.
  270        RestoreBanner,
  271        /// Toggles expansion of the selected item.
  272        ToggleExpandItem,
  273    ]
  274);
  275
  276/// Activates a specific pane by its index.
  277#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  278#[action(namespace = workspace)]
  279pub struct ActivatePane(pub usize);
  280
  281/// Moves an item to a specific pane by index.
  282#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  283#[action(namespace = workspace)]
  284#[serde(deny_unknown_fields)]
  285pub struct MoveItemToPane {
  286    #[serde(default = "default_1")]
  287    pub destination: usize,
  288    #[serde(default = "default_true")]
  289    pub focus: bool,
  290    #[serde(default)]
  291    pub clone: bool,
  292}
  293
  294fn default_1() -> usize {
  295    1
  296}
  297
  298/// Moves an item to a pane in the specified direction.
  299#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  300#[action(namespace = workspace)]
  301#[serde(deny_unknown_fields)]
  302pub struct MoveItemToPaneInDirection {
  303    #[serde(default = "default_right")]
  304    pub direction: SplitDirection,
  305    #[serde(default = "default_true")]
  306    pub focus: bool,
  307    #[serde(default)]
  308    pub clone: bool,
  309}
  310
  311/// Creates a new file in a split of the desired direction.
  312#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  313#[action(namespace = workspace)]
  314#[serde(deny_unknown_fields)]
  315pub struct NewFileSplit(pub SplitDirection);
  316
  317fn default_right() -> SplitDirection {
  318    SplitDirection::Right
  319}
  320
  321/// Saves all open files in the workspace.
  322#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  323#[action(namespace = workspace)]
  324#[serde(deny_unknown_fields)]
  325pub struct SaveAll {
  326    #[serde(default)]
  327    pub save_intent: Option<SaveIntent>,
  328}
  329
  330/// Saves the current file with the specified options.
  331#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  332#[action(namespace = workspace)]
  333#[serde(deny_unknown_fields)]
  334pub struct Save {
  335    #[serde(default)]
  336    pub save_intent: Option<SaveIntent>,
  337}
  338
  339/// Closes all items and panes in the workspace.
  340#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  341#[action(namespace = workspace)]
  342#[serde(deny_unknown_fields)]
  343pub struct CloseAllItemsAndPanes {
  344    #[serde(default)]
  345    pub save_intent: Option<SaveIntent>,
  346}
  347
  348/// Closes all inactive tabs and panes in the workspace.
  349#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  350#[action(namespace = workspace)]
  351#[serde(deny_unknown_fields)]
  352pub struct CloseInactiveTabsAndPanes {
  353    #[serde(default)]
  354    pub save_intent: Option<SaveIntent>,
  355}
  356
  357/// Sends a sequence of keystrokes to the active element.
  358#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  359#[action(namespace = workspace)]
  360pub struct SendKeystrokes(pub String);
  361
  362actions!(
  363    project_symbols,
  364    [
  365        /// Toggles the project symbols search.
  366        #[action(name = "Toggle")]
  367        ToggleProjectSymbols
  368    ]
  369);
  370
  371/// Toggles the file finder interface.
  372#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  373#[action(namespace = file_finder, name = "Toggle")]
  374#[serde(deny_unknown_fields)]
  375pub struct ToggleFileFinder {
  376    #[serde(default)]
  377    pub separate_history: bool,
  378}
  379
  380/// Increases size of a currently focused dock by a given amount of pixels.
  381#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  382#[action(namespace = workspace)]
  383#[serde(deny_unknown_fields)]
  384pub struct IncreaseActiveDockSize {
  385    /// For 0px parameter, uses UI font size value.
  386    #[serde(default)]
  387    pub px: u32,
  388}
  389
  390/// Decreases size of a currently focused dock by a given amount of pixels.
  391#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  392#[action(namespace = workspace)]
  393#[serde(deny_unknown_fields)]
  394pub struct DecreaseActiveDockSize {
  395    /// For 0px parameter, uses UI font size value.
  396    #[serde(default)]
  397    pub px: u32,
  398}
  399
  400/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  401#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  402#[action(namespace = workspace)]
  403#[serde(deny_unknown_fields)]
  404pub struct IncreaseOpenDocksSize {
  405    /// For 0px parameter, uses UI font size value.
  406    #[serde(default)]
  407    pub px: u32,
  408}
  409
  410/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  411#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  412#[action(namespace = workspace)]
  413#[serde(deny_unknown_fields)]
  414pub struct DecreaseOpenDocksSize {
  415    /// For 0px parameter, uses UI font size value.
  416    #[serde(default)]
  417    pub px: u32,
  418}
  419
  420actions!(
  421    workspace,
  422    [
  423        /// Activates the pane to the left.
  424        ActivatePaneLeft,
  425        /// Activates the pane to the right.
  426        ActivatePaneRight,
  427        /// Activates the pane above.
  428        ActivatePaneUp,
  429        /// Activates the pane below.
  430        ActivatePaneDown,
  431        /// Swaps the current pane with the one to the left.
  432        SwapPaneLeft,
  433        /// Swaps the current pane with the one to the right.
  434        SwapPaneRight,
  435        /// Swaps the current pane with the one above.
  436        SwapPaneUp,
  437        /// Swaps the current pane with the one below.
  438        SwapPaneDown,
  439        /// Move the current pane to be at the far left.
  440        MovePaneLeft,
  441        /// Move the current pane to be at the far right.
  442        MovePaneRight,
  443        /// Move the current pane to be at the very top.
  444        MovePaneUp,
  445        /// Move the current pane to be at the very bottom.
  446        MovePaneDown,
  447    ]
  448);
  449
  450#[derive(PartialEq, Eq, Debug)]
  451pub enum CloseIntent {
  452    /// Quit the program entirely.
  453    Quit,
  454    /// Close a window.
  455    CloseWindow,
  456    /// Replace the workspace in an existing window.
  457    ReplaceWindow,
  458}
  459
  460#[derive(Clone)]
  461pub struct Toast {
  462    id: NotificationId,
  463    msg: Cow<'static, str>,
  464    autohide: bool,
  465    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  466}
  467
  468impl Toast {
  469    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  470        Toast {
  471            id,
  472            msg: msg.into(),
  473            on_click: None,
  474            autohide: false,
  475        }
  476    }
  477
  478    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  479    where
  480        M: Into<Cow<'static, str>>,
  481        F: Fn(&mut Window, &mut App) + 'static,
  482    {
  483        self.on_click = Some((message.into(), Arc::new(on_click)));
  484        self
  485    }
  486
  487    pub fn autohide(mut self) -> Self {
  488        self.autohide = true;
  489        self
  490    }
  491}
  492
  493impl PartialEq for Toast {
  494    fn eq(&self, other: &Self) -> bool {
  495        self.id == other.id
  496            && self.msg == other.msg
  497            && self.on_click.is_some() == other.on_click.is_some()
  498    }
  499}
  500
  501/// Opens a new terminal with the specified working directory.
  502#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  503#[action(namespace = workspace)]
  504#[serde(deny_unknown_fields)]
  505pub struct OpenTerminal {
  506    pub working_directory: PathBuf,
  507}
  508
  509#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  510pub struct WorkspaceId(i64);
  511
  512impl StaticColumnCount for WorkspaceId {}
  513impl Bind for WorkspaceId {
  514    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  515        self.0.bind(statement, start_index)
  516    }
  517}
  518impl Column for WorkspaceId {
  519    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  520        i64::column(statement, start_index)
  521            .map(|(i, next_index)| (Self(i), next_index))
  522            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  523    }
  524}
  525impl From<WorkspaceId> for i64 {
  526    fn from(val: WorkspaceId) -> Self {
  527        val.0
  528    }
  529}
  530
  531pub fn init_settings(cx: &mut App) {
  532    WorkspaceSettings::register(cx);
  533    ItemSettings::register(cx);
  534    PreviewTabsSettings::register(cx);
  535    TabBarSettings::register(cx);
  536    StatusBarSettings::register(cx);
  537}
  538
  539fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  540    let paths = cx.prompt_for_paths(options);
  541    cx.spawn(
  542        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  543            Ok(Some(paths)) => {
  544                cx.update(|cx| {
  545                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  546                })
  547                .ok();
  548            }
  549            Ok(None) => {}
  550            Err(err) => {
  551                util::log_err(&err);
  552                cx.update(|cx| {
  553                    if let Some(workspace_window) = cx
  554                        .active_window()
  555                        .and_then(|window| window.downcast::<Workspace>())
  556                    {
  557                        workspace_window
  558                            .update(cx, |workspace, _, cx| {
  559                                workspace.show_portal_error(err.to_string(), cx);
  560                            })
  561                            .ok();
  562                    }
  563                })
  564                .ok();
  565            }
  566        },
  567    )
  568    .detach();
  569}
  570
  571pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  572    init_settings(cx);
  573    component::init();
  574    theme_preview::init(cx);
  575    toast_layer::init(cx);
  576    history_manager::init(cx);
  577
  578    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx));
  579    cx.on_action(|_: &Reload, cx| reload(cx));
  580
  581    cx.on_action({
  582        let app_state = Arc::downgrade(&app_state);
  583        move |_: &Open, cx: &mut App| {
  584            if let Some(app_state) = app_state.upgrade() {
  585                prompt_and_open_paths(
  586                    app_state,
  587                    PathPromptOptions {
  588                        files: true,
  589                        directories: true,
  590                        multiple: true,
  591                        prompt: None,
  592                    },
  593                    cx,
  594                );
  595            }
  596        }
  597    });
  598    cx.on_action({
  599        let app_state = Arc::downgrade(&app_state);
  600        move |_: &OpenFiles, cx: &mut App| {
  601            let directories = cx.can_select_mixed_files_and_dirs();
  602            if let Some(app_state) = app_state.upgrade() {
  603                prompt_and_open_paths(
  604                    app_state,
  605                    PathPromptOptions {
  606                        files: true,
  607                        directories,
  608                        multiple: true,
  609                        prompt: None,
  610                    },
  611                    cx,
  612                );
  613            }
  614        }
  615    });
  616}
  617
  618type BuildProjectItemFn =
  619    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  620
  621type BuildProjectItemForPathFn =
  622    fn(
  623        &Entity<Project>,
  624        &ProjectPath,
  625        &mut Window,
  626        &mut App,
  627    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  628
  629#[derive(Clone, Default)]
  630struct ProjectItemRegistry {
  631    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  632    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  633}
  634
  635impl ProjectItemRegistry {
  636    fn register<T: ProjectItem>(&mut self) {
  637        self.build_project_item_fns_by_type.insert(
  638            TypeId::of::<T::Item>(),
  639            |item, project, pane, window, cx| {
  640                let item = item.downcast().unwrap();
  641                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  642                    as Box<dyn ItemHandle>
  643            },
  644        );
  645        self.build_project_item_for_path_fns
  646            .push(|project, project_path, window, cx| {
  647                let project_path = project_path.clone();
  648                let is_file = project
  649                    .read(cx)
  650                    .entry_for_path(&project_path, cx)
  651                    .is_some_and(|entry| entry.is_file());
  652                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  653                let is_local = project.read(cx).is_local();
  654                let project_item =
  655                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  656                let project = project.clone();
  657                Some(window.spawn(cx, async move |cx| {
  658                    match project_item.await.with_context(|| {
  659                        format!(
  660                            "opening project path {:?}",
  661                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  662                        )
  663                    }) {
  664                        Ok(project_item) => {
  665                            let project_item = project_item;
  666                            let project_entry_id: Option<ProjectEntryId> =
  667                                project_item.read_with(cx, project::ProjectItem::entry_id)?;
  668                            let build_workspace_item = Box::new(
  669                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  670                                    Box::new(cx.new(|cx| {
  671                                        T::for_project_item(
  672                                            project,
  673                                            Some(pane),
  674                                            project_item,
  675                                            window,
  676                                            cx,
  677                                        )
  678                                    })) as Box<dyn ItemHandle>
  679                                },
  680                            ) as Box<_>;
  681                            Ok((project_entry_id, build_workspace_item))
  682                        }
  683                        Err(e) => {
  684                            if e.error_code() == ErrorCode::Internal {
  685                                if let Some(abs_path) =
  686                                    entry_abs_path.as_deref().filter(|_| is_file)
  687                                {
  688                                    if let Some(broken_project_item_view) =
  689                                        cx.update(|window, cx| {
  690                                            T::for_broken_project_item(
  691                                                abs_path, is_local, &e, window, cx,
  692                                            )
  693                                        })?
  694                                    {
  695                                        let build_workspace_item = Box::new(
  696                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  697                                                cx.new(|_| broken_project_item_view).boxed_clone()
  698                                            },
  699                                        )
  700                                        as Box<_>;
  701                                        return Ok((None, build_workspace_item));
  702                                    }
  703                                }
  704                            }
  705                            Err(e)
  706                        }
  707                    }
  708                }))
  709            });
  710    }
  711
  712    fn open_path(
  713        &self,
  714        project: &Entity<Project>,
  715        path: &ProjectPath,
  716        window: &mut Window,
  717        cx: &mut App,
  718    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  719        let Some(open_project_item) = self
  720            .build_project_item_for_path_fns
  721            .iter()
  722            .rev()
  723            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  724        else {
  725            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  726        };
  727        open_project_item
  728    }
  729
  730    fn build_item<T: project::ProjectItem>(
  731        &self,
  732        item: Entity<T>,
  733        project: Entity<Project>,
  734        pane: Option<&Pane>,
  735        window: &mut Window,
  736        cx: &mut App,
  737    ) -> Option<Box<dyn ItemHandle>> {
  738        let build = self
  739            .build_project_item_fns_by_type
  740            .get(&TypeId::of::<T>())?;
  741        Some(build(item.into_any(), project, pane, window, cx))
  742    }
  743}
  744
  745type WorkspaceItemBuilder =
  746    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  747
  748impl Global for ProjectItemRegistry {}
  749
  750/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  751/// items will get a chance to open the file, starting from the project item that
  752/// was added last.
  753pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  754    cx.default_global::<ProjectItemRegistry>().register::<I>();
  755}
  756
  757#[derive(Default)]
  758pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  759
  760struct FollowableViewDescriptor {
  761    from_state_proto: fn(
  762        Entity<Workspace>,
  763        ViewId,
  764        &mut Option<proto::view::Variant>,
  765        &mut Window,
  766        &mut App,
  767    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  768    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  769}
  770
  771impl Global for FollowableViewRegistry {}
  772
  773impl FollowableViewRegistry {
  774    pub fn register<I: FollowableItem>(cx: &mut App) {
  775        cx.default_global::<Self>().0.insert(
  776            TypeId::of::<I>(),
  777            FollowableViewDescriptor {
  778                from_state_proto: |workspace, id, state, window, cx| {
  779                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  780                        cx.foreground_executor()
  781                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  782                    })
  783                },
  784                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  785            },
  786        );
  787    }
  788
  789    pub fn from_state_proto(
  790        workspace: Entity<Workspace>,
  791        view_id: ViewId,
  792        mut state: Option<proto::view::Variant>,
  793        window: &mut Window,
  794        cx: &mut App,
  795    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  796        cx.update_default_global(|this: &mut Self, cx| {
  797            this.0.values().find_map(|descriptor| {
  798                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  799            })
  800        })
  801    }
  802
  803    pub fn to_followable_view(
  804        view: impl Into<AnyView>,
  805        cx: &App,
  806    ) -> Option<Box<dyn FollowableItemHandle>> {
  807        let this = cx.try_global::<Self>()?;
  808        let view = view.into();
  809        let descriptor = this.0.get(&view.entity_type())?;
  810        Some((descriptor.to_followable_view)(&view))
  811    }
  812}
  813
  814#[derive(Copy, Clone)]
  815struct SerializableItemDescriptor {
  816    deserialize: fn(
  817        Entity<Project>,
  818        WeakEntity<Workspace>,
  819        WorkspaceId,
  820        ItemId,
  821        &mut Window,
  822        &mut Context<Pane>,
  823    ) -> Task<Result<Box<dyn ItemHandle>>>,
  824    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  825    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  826}
  827
  828#[derive(Default)]
  829struct SerializableItemRegistry {
  830    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  831    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  832}
  833
  834impl Global for SerializableItemRegistry {}
  835
  836impl SerializableItemRegistry {
  837    fn deserialize(
  838        item_kind: &str,
  839        project: Entity<Project>,
  840        workspace: WeakEntity<Workspace>,
  841        workspace_id: WorkspaceId,
  842        item_item: ItemId,
  843        window: &mut Window,
  844        cx: &mut Context<Pane>,
  845    ) -> Task<Result<Box<dyn ItemHandle>>> {
  846        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  847            return Task::ready(Err(anyhow!(
  848                "cannot deserialize {}, descriptor not found",
  849                item_kind
  850            )));
  851        };
  852
  853        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  854    }
  855
  856    fn cleanup(
  857        item_kind: &str,
  858        workspace_id: WorkspaceId,
  859        loaded_items: Vec<ItemId>,
  860        window: &mut Window,
  861        cx: &mut App,
  862    ) -> Task<Result<()>> {
  863        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  864            return Task::ready(Err(anyhow!(
  865                "cannot cleanup {}, descriptor not found",
  866                item_kind
  867            )));
  868        };
  869
  870        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  871    }
  872
  873    fn view_to_serializable_item_handle(
  874        view: AnyView,
  875        cx: &App,
  876    ) -> Option<Box<dyn SerializableItemHandle>> {
  877        let this = cx.try_global::<Self>()?;
  878        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  879        Some((descriptor.view_to_serializable_item)(view))
  880    }
  881
  882    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  883        let this = cx.try_global::<Self>()?;
  884        this.descriptors_by_kind.get(item_kind).copied()
  885    }
  886}
  887
  888pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  889    let serialized_item_kind = I::serialized_item_kind();
  890
  891    let registry = cx.default_global::<SerializableItemRegistry>();
  892    let descriptor = SerializableItemDescriptor {
  893        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  894            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  895            cx.foreground_executor()
  896                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  897        },
  898        cleanup: |workspace_id, loaded_items, window, cx| {
  899            I::cleanup(workspace_id, loaded_items, window, cx)
  900        },
  901        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  902    };
  903    registry
  904        .descriptors_by_kind
  905        .insert(Arc::from(serialized_item_kind), descriptor);
  906    registry
  907        .descriptors_by_type
  908        .insert(TypeId::of::<I>(), descriptor);
  909}
  910
  911pub struct AppState {
  912    pub languages: Arc<LanguageRegistry>,
  913    pub client: Arc<Client>,
  914    pub user_store: Entity<UserStore>,
  915    pub workspace_store: Entity<WorkspaceStore>,
  916    pub fs: Arc<dyn fs::Fs>,
  917    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  918    pub node_runtime: NodeRuntime,
  919    pub session: Entity<AppSession>,
  920}
  921
  922struct GlobalAppState(Weak<AppState>);
  923
  924impl Global for GlobalAppState {}
  925
  926pub struct WorkspaceStore {
  927    workspaces: HashSet<WindowHandle<Workspace>>,
  928    client: Arc<Client>,
  929    _subscriptions: Vec<client::Subscription>,
  930}
  931
  932#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  933pub enum CollaboratorId {
  934    PeerId(PeerId),
  935    Agent,
  936}
  937
  938impl From<PeerId> for CollaboratorId {
  939    fn from(peer_id: PeerId) -> Self {
  940        CollaboratorId::PeerId(peer_id)
  941    }
  942}
  943
  944impl From<&PeerId> for CollaboratorId {
  945    fn from(peer_id: &PeerId) -> Self {
  946        CollaboratorId::PeerId(*peer_id)
  947    }
  948}
  949
  950#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  951struct Follower {
  952    project_id: Option<u64>,
  953    peer_id: PeerId,
  954}
  955
  956impl AppState {
  957    #[track_caller]
  958    pub fn global(cx: &App) -> Weak<Self> {
  959        cx.global::<GlobalAppState>().0.clone()
  960    }
  961    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  962        cx.try_global::<GlobalAppState>()
  963            .map(|state| state.0.clone())
  964    }
  965    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  966        cx.set_global(GlobalAppState(state));
  967    }
  968
  969    #[cfg(any(test, feature = "test-support"))]
  970    pub fn test(cx: &mut App) -> Arc<Self> {
  971        use node_runtime::NodeRuntime;
  972        use session::Session;
  973        use settings::SettingsStore;
  974
  975        if !cx.has_global::<SettingsStore>() {
  976            let settings_store = SettingsStore::test(cx);
  977            cx.set_global(settings_store);
  978        }
  979
  980        let fs = fs::FakeFs::new(cx.background_executor().clone());
  981        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
  982        let clock = Arc::new(clock::FakeSystemClock::new());
  983        let http_client = http_client::FakeHttpClient::with_404_response();
  984        let client = Client::new(clock, http_client, cx);
  985        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
  986        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
  987        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
  988
  989        theme::init(theme::LoadThemes::JustBase, cx);
  990        client::init(&client, cx);
  991        crate::init_settings(cx);
  992
  993        Arc::new(Self {
  994            client,
  995            fs,
  996            languages,
  997            user_store,
  998            workspace_store,
  999            node_runtime: NodeRuntime::unavailable(),
 1000            build_window_options: |_, _| Default::default(),
 1001            session,
 1002        })
 1003    }
 1004}
 1005
 1006struct DelayedDebouncedEditAction {
 1007    task: Option<Task<()>>,
 1008    cancel_channel: Option<oneshot::Sender<()>>,
 1009}
 1010
 1011impl DelayedDebouncedEditAction {
 1012    fn new() -> DelayedDebouncedEditAction {
 1013        DelayedDebouncedEditAction {
 1014            task: None,
 1015            cancel_channel: None,
 1016        }
 1017    }
 1018
 1019    fn fire_new<F>(
 1020        &mut self,
 1021        delay: Duration,
 1022        window: &mut Window,
 1023        cx: &mut Context<Workspace>,
 1024        func: F,
 1025    ) where
 1026        F: 'static
 1027            + Send
 1028            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1029    {
 1030        if let Some(channel) = self.cancel_channel.take() {
 1031            _ = channel.send(());
 1032        }
 1033
 1034        let (sender, mut receiver) = oneshot::channel::<()>();
 1035        self.cancel_channel = Some(sender);
 1036
 1037        let previous_task = self.task.take();
 1038        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1039            let mut timer = cx.background_executor().timer(delay).fuse();
 1040            if let Some(previous_task) = previous_task {
 1041                previous_task.await;
 1042            }
 1043
 1044            futures::select_biased! {
 1045                _ = receiver => return,
 1046                    _ = timer => {}
 1047            }
 1048
 1049            if let Some(result) = workspace
 1050                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1051                .log_err()
 1052            {
 1053                result.await.log_err();
 1054            }
 1055        }));
 1056    }
 1057}
 1058
 1059pub enum Event {
 1060    PaneAdded(Entity<Pane>),
 1061    PaneRemoved,
 1062    ItemAdded {
 1063        item: Box<dyn ItemHandle>,
 1064    },
 1065    ActiveItemChanged,
 1066    ItemRemoved {
 1067        item_id: EntityId,
 1068    },
 1069    UserSavedItem {
 1070        pane: WeakEntity<Pane>,
 1071        item: Box<dyn WeakItemHandle>,
 1072        save_intent: SaveIntent,
 1073    },
 1074    ContactRequestedJoin(u64),
 1075    WorkspaceCreated(WeakEntity<Workspace>),
 1076    OpenBundledFile {
 1077        text: Cow<'static, str>,
 1078        title: &'static str,
 1079        language: &'static str,
 1080    },
 1081    ZoomChanged,
 1082    ModalOpened,
 1083}
 1084
 1085#[derive(Debug)]
 1086pub enum OpenVisible {
 1087    All,
 1088    None,
 1089    OnlyFiles,
 1090    OnlyDirectories,
 1091}
 1092
 1093enum WorkspaceLocation {
 1094    // Valid local paths or SSH project to serialize
 1095    Location(SerializedWorkspaceLocation, PathList),
 1096    // No valid location found hence clear session id
 1097    DetachFromSession,
 1098    // No valid location found to serialize
 1099    None,
 1100}
 1101
 1102type PromptForNewPath = Box<
 1103    dyn Fn(
 1104        &mut Workspace,
 1105        DirectoryLister,
 1106        &mut Window,
 1107        &mut Context<Workspace>,
 1108    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1109>;
 1110
 1111type PromptForOpenPath = Box<
 1112    dyn Fn(
 1113        &mut Workspace,
 1114        DirectoryLister,
 1115        &mut Window,
 1116        &mut Context<Workspace>,
 1117    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1118>;
 1119
 1120#[derive(Default)]
 1121struct DispatchingKeystrokes {
 1122    dispatched: HashSet<Vec<Keystroke>>,
 1123    queue: VecDeque<Keystroke>,
 1124    task: Option<Shared<Task<()>>>,
 1125}
 1126
 1127/// Collects everything project-related for a certain window opened.
 1128/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1129///
 1130/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1131/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1132/// that can be used to register a global action to be triggered from any place in the window.
 1133pub struct Workspace {
 1134    weak_self: WeakEntity<Self>,
 1135    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1136    zoomed: Option<AnyWeakView>,
 1137    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1138    zoomed_position: Option<DockPosition>,
 1139    center: PaneGroup,
 1140    left_dock: Entity<Dock>,
 1141    bottom_dock: Entity<Dock>,
 1142    right_dock: Entity<Dock>,
 1143    panes: Vec<Entity<Pane>>,
 1144    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1145    active_pane: Entity<Pane>,
 1146    last_active_center_pane: Option<WeakEntity<Pane>>,
 1147    last_active_view_id: Option<proto::ViewId>,
 1148    status_bar: Entity<StatusBar>,
 1149    modal_layer: Entity<ModalLayer>,
 1150    toast_layer: Entity<ToastLayer>,
 1151    titlebar_item: Option<AnyView>,
 1152    notifications: Notifications,
 1153    suppressed_notifications: HashSet<NotificationId>,
 1154    project: Entity<Project>,
 1155    follower_states: HashMap<CollaboratorId, FollowerState>,
 1156    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1157    window_edited: bool,
 1158    last_window_title: Option<String>,
 1159    dirty_items: HashMap<EntityId, Subscription>,
 1160    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1161    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1162    database_id: Option<WorkspaceId>,
 1163    app_state: Arc<AppState>,
 1164    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1165    _subscriptions: Vec<Subscription>,
 1166    _apply_leader_updates: Task<Result<()>>,
 1167    _observe_current_user: Task<Result<()>>,
 1168    _schedule_serialize_workspace: Option<Task<()>>,
 1169    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1170    pane_history_timestamp: Arc<AtomicUsize>,
 1171    bounds: Bounds<Pixels>,
 1172    pub centered_layout: bool,
 1173    bounds_save_task_queued: Option<Task<()>>,
 1174    on_prompt_for_new_path: Option<PromptForNewPath>,
 1175    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1176    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1177    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1178    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1179    _items_serializer: Task<Result<()>>,
 1180    session_id: Option<String>,
 1181    scheduled_tasks: Vec<Task<()>>,
 1182    last_open_dock_positions: Vec<DockPosition>,
 1183}
 1184
 1185impl EventEmitter<Event> for Workspace {}
 1186
 1187#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1188pub struct ViewId {
 1189    pub creator: CollaboratorId,
 1190    pub id: u64,
 1191}
 1192
 1193pub struct FollowerState {
 1194    center_pane: Entity<Pane>,
 1195    dock_pane: Option<Entity<Pane>>,
 1196    active_view_id: Option<ViewId>,
 1197    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1198}
 1199
 1200struct FollowerView {
 1201    view: Box<dyn FollowableItemHandle>,
 1202    location: Option<proto::PanelId>,
 1203}
 1204
 1205impl Workspace {
 1206    pub fn new(
 1207        workspace_id: Option<WorkspaceId>,
 1208        project: Entity<Project>,
 1209        app_state: Arc<AppState>,
 1210        window: &mut Window,
 1211        cx: &mut Context<Self>,
 1212    ) -> Self {
 1213        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1214            match event {
 1215                project::Event::RemoteIdChanged(_) => {
 1216                    this.update_window_title(window, cx);
 1217                }
 1218
 1219                project::Event::CollaboratorLeft(peer_id) => {
 1220                    this.collaborator_left(*peer_id, window, cx);
 1221                }
 1222
 1223                project::Event::WorktreeRemoved(_) | project::Event::WorktreeAdded(_) => {
 1224                    this.update_window_title(window, cx);
 1225                    this.serialize_workspace(window, cx);
 1226                    // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 1227                    this.update_history(cx);
 1228                }
 1229
 1230                project::Event::DisconnectedFromHost => {
 1231                    this.update_window_edited(window, cx);
 1232                    let leaders_to_unfollow =
 1233                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1234                    for leader_id in leaders_to_unfollow {
 1235                        this.unfollow(leader_id, window, cx);
 1236                    }
 1237                }
 1238
 1239                project::Event::DisconnectedFromSshRemote => {
 1240                    this.update_window_edited(window, cx);
 1241                }
 1242
 1243                project::Event::Closed => {
 1244                    window.remove_window();
 1245                }
 1246
 1247                project::Event::DeletedEntry(_, entry_id) => {
 1248                    for pane in this.panes.iter() {
 1249                        pane.update(cx, |pane, cx| {
 1250                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1251                        });
 1252                    }
 1253                }
 1254
 1255                project::Event::Toast {
 1256                    notification_id,
 1257                    message,
 1258                } => this.show_notification(
 1259                    NotificationId::named(notification_id.clone()),
 1260                    cx,
 1261                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1262                ),
 1263
 1264                project::Event::HideToast { notification_id } => {
 1265                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1266                }
 1267
 1268                project::Event::LanguageServerPrompt(request) => {
 1269                    struct LanguageServerPrompt;
 1270
 1271                    let mut hasher = DefaultHasher::new();
 1272                    request.lsp_name.as_str().hash(&mut hasher);
 1273                    let id = hasher.finish();
 1274
 1275                    this.show_notification(
 1276                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1277                        cx,
 1278                        |cx| {
 1279                            cx.new(|cx| {
 1280                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1281                            })
 1282                        },
 1283                    );
 1284                }
 1285
 1286                project::Event::AgentLocationChanged => {
 1287                    this.handle_agent_location_changed(window, cx)
 1288                }
 1289
 1290                _ => {}
 1291            }
 1292            cx.notify()
 1293        })
 1294        .detach();
 1295
 1296        cx.subscribe_in(
 1297            &project.read(cx).breakpoint_store(),
 1298            window,
 1299            |workspace, _, event, window, cx| match event {
 1300                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1301                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1302                    workspace.serialize_workspace(window, cx);
 1303                }
 1304                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1305            },
 1306        )
 1307        .detach();
 1308        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1309            cx.subscribe_in(
 1310                &toolchain_store,
 1311                window,
 1312                |workspace, _, event, window, cx| match event {
 1313                    ToolchainStoreEvent::CustomToolchainsModified => {
 1314                        workspace.serialize_workspace(window, cx);
 1315                    }
 1316                    _ => {}
 1317                },
 1318            )
 1319            .detach();
 1320        }
 1321
 1322        cx.on_focus_lost(window, |this, window, cx| {
 1323            let focus_handle = this.focus_handle(cx);
 1324            window.focus(&focus_handle);
 1325        })
 1326        .detach();
 1327
 1328        let weak_handle = cx.entity().downgrade();
 1329        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1330
 1331        let center_pane = cx.new(|cx| {
 1332            let mut center_pane = Pane::new(
 1333                weak_handle.clone(),
 1334                project.clone(),
 1335                pane_history_timestamp.clone(),
 1336                None,
 1337                NewFile.boxed_clone(),
 1338                true,
 1339                window,
 1340                cx,
 1341            );
 1342            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1343            center_pane
 1344        });
 1345        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1346            .detach();
 1347
 1348        window.focus(&center_pane.focus_handle(cx));
 1349
 1350        cx.emit(Event::PaneAdded(center_pane.clone()));
 1351
 1352        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1353        app_state.workspace_store.update(cx, |store, _| {
 1354            store.workspaces.insert(window_handle);
 1355        });
 1356
 1357        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1358        let mut connection_status = app_state.client.status();
 1359        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1360            current_user.next().await;
 1361            connection_status.next().await;
 1362            let mut stream =
 1363                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1364
 1365            while stream.recv().await.is_some() {
 1366                this.update(cx, |_, cx| cx.notify())?;
 1367            }
 1368            anyhow::Ok(())
 1369        });
 1370
 1371        // All leader updates are enqueued and then processed in a single task, so
 1372        // that each asynchronous operation can be run in order.
 1373        let (leader_updates_tx, mut leader_updates_rx) =
 1374            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1375        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1376            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1377                Self::process_leader_update(&this, leader_id, update, cx)
 1378                    .await
 1379                    .log_err();
 1380            }
 1381
 1382            Ok(())
 1383        });
 1384
 1385        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1386        let modal_layer = cx.new(|_| ModalLayer::new());
 1387        let toast_layer = cx.new(|_| ToastLayer::new());
 1388        cx.subscribe(
 1389            &modal_layer,
 1390            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1391                cx.emit(Event::ModalOpened);
 1392            },
 1393        )
 1394        .detach();
 1395
 1396        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1397        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1398        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1399        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1400        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1401        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1402        let status_bar = cx.new(|cx| {
 1403            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1404            status_bar.add_left_item(left_dock_buttons, window, cx);
 1405            status_bar.add_right_item(right_dock_buttons, window, cx);
 1406            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1407            status_bar
 1408        });
 1409
 1410        let session_id = app_state.session.read(cx).id().to_owned();
 1411
 1412        let mut active_call = None;
 1413        if let Some(call) = ActiveCall::try_global(cx) {
 1414            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1415            active_call = Some((call, subscriptions));
 1416        }
 1417
 1418        let (serializable_items_tx, serializable_items_rx) =
 1419            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1420        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1421            Self::serialize_items(&this, serializable_items_rx, cx).await
 1422        });
 1423
 1424        let subscriptions = vec![
 1425            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1426            cx.observe_window_bounds(window, move |this, window, cx| {
 1427                if this.bounds_save_task_queued.is_some() {
 1428                    return;
 1429                }
 1430                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1431                    cx.background_executor()
 1432                        .timer(Duration::from_millis(100))
 1433                        .await;
 1434                    this.update_in(cx, |this, window, cx| {
 1435                        if let Some(display) = window.display(cx)
 1436                            && let Ok(display_uuid) = display.uuid()
 1437                        {
 1438                            let window_bounds = window.inner_window_bounds();
 1439                            if let Some(database_id) = workspace_id {
 1440                                cx.background_executor()
 1441                                    .spawn(DB.set_window_open_status(
 1442                                        database_id,
 1443                                        SerializedWindowBounds(window_bounds),
 1444                                        display_uuid,
 1445                                    ))
 1446                                    .detach_and_log_err(cx);
 1447                            }
 1448                        }
 1449                        this.bounds_save_task_queued.take();
 1450                    })
 1451                    .ok();
 1452                }));
 1453                cx.notify();
 1454            }),
 1455            cx.observe_window_appearance(window, |_, window, cx| {
 1456                let window_appearance = window.appearance();
 1457
 1458                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1459
 1460                GlobalTheme::reload_theme(cx);
 1461                GlobalTheme::reload_icon_theme(cx);
 1462            }),
 1463            cx.on_release(move |this, cx| {
 1464                this.app_state.workspace_store.update(cx, move |store, _| {
 1465                    store.workspaces.remove(&window_handle);
 1466                })
 1467            }),
 1468        ];
 1469
 1470        cx.defer_in(window, |this, window, cx| {
 1471            this.update_window_title(window, cx);
 1472            this.show_initial_notifications(cx);
 1473        });
 1474        Workspace {
 1475            weak_self: weak_handle.clone(),
 1476            zoomed: None,
 1477            zoomed_position: None,
 1478            previous_dock_drag_coordinates: None,
 1479            center: PaneGroup::new(center_pane.clone()),
 1480            panes: vec![center_pane.clone()],
 1481            panes_by_item: Default::default(),
 1482            active_pane: center_pane.clone(),
 1483            last_active_center_pane: Some(center_pane.downgrade()),
 1484            last_active_view_id: None,
 1485            status_bar,
 1486            modal_layer,
 1487            toast_layer,
 1488            titlebar_item: None,
 1489            notifications: Notifications::default(),
 1490            suppressed_notifications: HashSet::default(),
 1491            left_dock,
 1492            bottom_dock,
 1493            right_dock,
 1494            project: project.clone(),
 1495            follower_states: Default::default(),
 1496            last_leaders_by_pane: Default::default(),
 1497            dispatching_keystrokes: Default::default(),
 1498            window_edited: false,
 1499            last_window_title: None,
 1500            dirty_items: Default::default(),
 1501            active_call,
 1502            database_id: workspace_id,
 1503            app_state,
 1504            _observe_current_user,
 1505            _apply_leader_updates,
 1506            _schedule_serialize_workspace: None,
 1507            _schedule_serialize_ssh_paths: None,
 1508            leader_updates_tx,
 1509            _subscriptions: subscriptions,
 1510            pane_history_timestamp,
 1511            workspace_actions: Default::default(),
 1512            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1513            bounds: Default::default(),
 1514            centered_layout: false,
 1515            bounds_save_task_queued: None,
 1516            on_prompt_for_new_path: None,
 1517            on_prompt_for_open_path: None,
 1518            terminal_provider: None,
 1519            debugger_provider: None,
 1520            serializable_items_tx,
 1521            _items_serializer,
 1522            session_id: Some(session_id),
 1523
 1524            scheduled_tasks: Vec::new(),
 1525            last_open_dock_positions: Vec::new(),
 1526        }
 1527    }
 1528
 1529    pub fn new_local(
 1530        abs_paths: Vec<PathBuf>,
 1531        app_state: Arc<AppState>,
 1532        requesting_window: Option<WindowHandle<Workspace>>,
 1533        env: Option<HashMap<String, String>>,
 1534        cx: &mut App,
 1535    ) -> Task<
 1536        anyhow::Result<(
 1537            WindowHandle<Workspace>,
 1538            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1539        )>,
 1540    > {
 1541        let project_handle = Project::local(
 1542            app_state.client.clone(),
 1543            app_state.node_runtime.clone(),
 1544            app_state.user_store.clone(),
 1545            app_state.languages.clone(),
 1546            app_state.fs.clone(),
 1547            env,
 1548            cx,
 1549        );
 1550
 1551        cx.spawn(async move |cx| {
 1552            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1553            for path in abs_paths.into_iter() {
 1554                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1555                    paths_to_open.push(canonical)
 1556                } else {
 1557                    paths_to_open.push(path)
 1558                }
 1559            }
 1560
 1561            let serialized_workspace =
 1562                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1563
 1564            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1565                paths_to_open = paths.ordered_paths().cloned().collect();
 1566                if !paths.is_lexicographically_ordered() {
 1567                    project_handle
 1568                        .update(cx, |project, cx| {
 1569                            project.set_worktrees_reordered(true, cx);
 1570                        })
 1571                        .log_err();
 1572                }
 1573            }
 1574
 1575            // Get project paths for all of the abs_paths
 1576            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1577                Vec::with_capacity(paths_to_open.len());
 1578
 1579            for path in paths_to_open.into_iter() {
 1580                if let Some((_, project_entry)) = cx
 1581                    .update(|cx| {
 1582                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1583                    })?
 1584                    .await
 1585                    .log_err()
 1586                {
 1587                    project_paths.push((path, Some(project_entry)));
 1588                } else {
 1589                    project_paths.push((path, None));
 1590                }
 1591            }
 1592
 1593            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1594                serialized_workspace.id
 1595            } else {
 1596                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1597            };
 1598
 1599            let toolchains = DB.toolchains(workspace_id).await?;
 1600
 1601            for (toolchain, worktree_id, path) in toolchains {
 1602                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1603                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1604                    continue;
 1605                }
 1606
 1607                project_handle
 1608                    .update(cx, |this, cx| {
 1609                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1610                    })?
 1611                    .await;
 1612            }
 1613            if let Some(workspace) = serialized_workspace.as_ref() {
 1614                project_handle.update(cx, |this, cx| {
 1615                    for (scope, toolchains) in &workspace.user_toolchains {
 1616                        for toolchain in toolchains {
 1617                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1618                        }
 1619                    }
 1620                })?;
 1621            }
 1622
 1623            let window = if let Some(window) = requesting_window {
 1624                let centered_layout = serialized_workspace
 1625                    .as_ref()
 1626                    .map(|w| w.centered_layout)
 1627                    .unwrap_or(false);
 1628
 1629                cx.update_window(window.into(), |_, window, cx| {
 1630                    window.replace_root(cx, |window, cx| {
 1631                        let mut workspace = Workspace::new(
 1632                            Some(workspace_id),
 1633                            project_handle.clone(),
 1634                            app_state.clone(),
 1635                            window,
 1636                            cx,
 1637                        );
 1638
 1639                        workspace.centered_layout = centered_layout;
 1640                        workspace
 1641                    });
 1642                })?;
 1643                window
 1644            } else {
 1645                let window_bounds_override = window_bounds_env_override();
 1646
 1647                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1648                    (Some(WindowBounds::Windowed(bounds)), None)
 1649                } else {
 1650                    let restorable_bounds = serialized_workspace
 1651                        .as_ref()
 1652                        .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 1653                        .or_else(|| {
 1654                            let (display, window_bounds) = DB.last_window().log_err()?;
 1655                            Some((display?, window_bounds?))
 1656                        });
 1657
 1658                    if let Some((serialized_display, serialized_status)) = restorable_bounds {
 1659                        (Some(serialized_status.0), Some(serialized_display))
 1660                    } else {
 1661                        (None, None)
 1662                    }
 1663                };
 1664
 1665                // Use the serialized workspace to construct the new window
 1666                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1667                options.window_bounds = window_bounds;
 1668                let centered_layout = serialized_workspace
 1669                    .as_ref()
 1670                    .map(|w| w.centered_layout)
 1671                    .unwrap_or(false);
 1672                cx.open_window(options, {
 1673                    let app_state = app_state.clone();
 1674                    let project_handle = project_handle.clone();
 1675                    move |window, cx| {
 1676                        cx.new(|cx| {
 1677                            let mut workspace = Workspace::new(
 1678                                Some(workspace_id),
 1679                                project_handle,
 1680                                app_state,
 1681                                window,
 1682                                cx,
 1683                            );
 1684                            workspace.centered_layout = centered_layout;
 1685                            workspace
 1686                        })
 1687                    }
 1688                })?
 1689            };
 1690
 1691            notify_if_database_failed(window, cx);
 1692            let opened_items = window
 1693                .update(cx, |_workspace, window, cx| {
 1694                    open_items(serialized_workspace, project_paths, window, cx)
 1695                })?
 1696                .await
 1697                .unwrap_or_default();
 1698
 1699            window
 1700                .update(cx, |workspace, window, cx| {
 1701                    window.activate_window();
 1702                    workspace.update_history(cx);
 1703                })
 1704                .log_err();
 1705            Ok((window, opened_items))
 1706        })
 1707    }
 1708
 1709    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1710        self.weak_self.clone()
 1711    }
 1712
 1713    pub fn left_dock(&self) -> &Entity<Dock> {
 1714        &self.left_dock
 1715    }
 1716
 1717    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1718        &self.bottom_dock
 1719    }
 1720
 1721    pub fn set_bottom_dock_layout(
 1722        &mut self,
 1723        layout: BottomDockLayout,
 1724        window: &mut Window,
 1725        cx: &mut Context<Self>,
 1726    ) {
 1727        let fs = self.project().read(cx).fs();
 1728        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1729            content.workspace.bottom_dock_layout = Some(layout);
 1730        });
 1731
 1732        cx.notify();
 1733        self.serialize_workspace(window, cx);
 1734    }
 1735
 1736    pub fn right_dock(&self) -> &Entity<Dock> {
 1737        &self.right_dock
 1738    }
 1739
 1740    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1741        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1742    }
 1743
 1744    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1745        match position {
 1746            DockPosition::Left => &self.left_dock,
 1747            DockPosition::Bottom => &self.bottom_dock,
 1748            DockPosition::Right => &self.right_dock,
 1749        }
 1750    }
 1751
 1752    pub fn is_edited(&self) -> bool {
 1753        self.window_edited
 1754    }
 1755
 1756    pub fn add_panel<T: Panel>(
 1757        &mut self,
 1758        panel: Entity<T>,
 1759        window: &mut Window,
 1760        cx: &mut Context<Self>,
 1761    ) {
 1762        let focus_handle = panel.panel_focus_handle(cx);
 1763        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1764            .detach();
 1765
 1766        let dock_position = panel.position(window, cx);
 1767        let dock = self.dock_at_position(dock_position);
 1768
 1769        dock.update(cx, |dock, cx| {
 1770            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1771        });
 1772    }
 1773
 1774    pub fn remove_panel<T: Panel>(
 1775        &mut self,
 1776        panel: &Entity<T>,
 1777        window: &mut Window,
 1778        cx: &mut Context<Self>,
 1779    ) {
 1780        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1781            dock.update(cx, |dock, cx| {
 1782                dock.remove_panel(panel, window, cx);
 1783            })
 1784        }
 1785    }
 1786
 1787    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1788        &self.status_bar
 1789    }
 1790
 1791    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1792        StatusBarSettings::get_global(cx).show
 1793    }
 1794
 1795    pub fn app_state(&self) -> &Arc<AppState> {
 1796        &self.app_state
 1797    }
 1798
 1799    pub fn user_store(&self) -> &Entity<UserStore> {
 1800        &self.app_state.user_store
 1801    }
 1802
 1803    pub fn project(&self) -> &Entity<Project> {
 1804        &self.project
 1805    }
 1806
 1807    pub fn path_style(&self, cx: &App) -> PathStyle {
 1808        self.project.read(cx).path_style(cx)
 1809    }
 1810
 1811    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1812        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1813
 1814        for pane_handle in &self.panes {
 1815            let pane = pane_handle.read(cx);
 1816
 1817            for entry in pane.activation_history() {
 1818                history.insert(
 1819                    entry.entity_id,
 1820                    history
 1821                        .get(&entry.entity_id)
 1822                        .cloned()
 1823                        .unwrap_or(0)
 1824                        .max(entry.timestamp),
 1825                );
 1826            }
 1827        }
 1828
 1829        history
 1830    }
 1831
 1832    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1833        let mut recent_item: Option<Entity<T>> = None;
 1834        let mut recent_timestamp = 0;
 1835        for pane_handle in &self.panes {
 1836            let pane = pane_handle.read(cx);
 1837            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1838                pane.items().map(|item| (item.item_id(), item)).collect();
 1839            for entry in pane.activation_history() {
 1840                if entry.timestamp > recent_timestamp
 1841                    && let Some(&item) = item_map.get(&entry.entity_id)
 1842                    && let Some(typed_item) = item.act_as::<T>(cx)
 1843                {
 1844                    recent_timestamp = entry.timestamp;
 1845                    recent_item = Some(typed_item);
 1846                }
 1847            }
 1848        }
 1849        recent_item
 1850    }
 1851
 1852    pub fn recent_navigation_history_iter(
 1853        &self,
 1854        cx: &App,
 1855    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> {
 1856        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1857        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1858
 1859        for pane in &self.panes {
 1860            let pane = pane.read(cx);
 1861
 1862            pane.nav_history()
 1863                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1864                    if let Some(fs_path) = &fs_path {
 1865                        abs_paths_opened
 1866                            .entry(fs_path.clone())
 1867                            .or_default()
 1868                            .insert(project_path.clone());
 1869                    }
 1870                    let timestamp = entry.timestamp;
 1871                    match history.entry(project_path) {
 1872                        hash_map::Entry::Occupied(mut entry) => {
 1873                            let (_, old_timestamp) = entry.get();
 1874                            if &timestamp > old_timestamp {
 1875                                entry.insert((fs_path, timestamp));
 1876                            }
 1877                        }
 1878                        hash_map::Entry::Vacant(entry) => {
 1879                            entry.insert((fs_path, timestamp));
 1880                        }
 1881                    }
 1882                });
 1883
 1884            if let Some(item) = pane.active_item()
 1885                && let Some(project_path) = item.project_path(cx)
 1886            {
 1887                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 1888
 1889                if let Some(fs_path) = &fs_path {
 1890                    abs_paths_opened
 1891                        .entry(fs_path.clone())
 1892                        .or_default()
 1893                        .insert(project_path.clone());
 1894                }
 1895
 1896                history.insert(project_path, (fs_path, std::usize::MAX));
 1897            }
 1898        }
 1899
 1900        history
 1901            .into_iter()
 1902            .sorted_by_key(|(_, (_, order))| *order)
 1903            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 1904            .rev()
 1905            .filter(move |(history_path, abs_path)| {
 1906                let latest_project_path_opened = abs_path
 1907                    .as_ref()
 1908                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 1909                    .and_then(|project_paths| {
 1910                        project_paths
 1911                            .iter()
 1912                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 1913                    });
 1914
 1915                latest_project_path_opened.is_none_or(|path| path == history_path)
 1916            })
 1917    }
 1918
 1919    pub fn recent_navigation_history(
 1920        &self,
 1921        limit: Option<usize>,
 1922        cx: &App,
 1923    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 1924        self.recent_navigation_history_iter(cx)
 1925            .take(limit.unwrap_or(usize::MAX))
 1926            .collect()
 1927    }
 1928
 1929    fn navigate_history(
 1930        &mut self,
 1931        pane: WeakEntity<Pane>,
 1932        mode: NavigationMode,
 1933        window: &mut Window,
 1934        cx: &mut Context<Workspace>,
 1935    ) -> Task<Result<()>> {
 1936        let to_load = if let Some(pane) = pane.upgrade() {
 1937            pane.update(cx, |pane, cx| {
 1938                window.focus(&pane.focus_handle(cx));
 1939                loop {
 1940                    // Retrieve the weak item handle from the history.
 1941                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 1942
 1943                    // If the item is still present in this pane, then activate it.
 1944                    if let Some(index) = entry
 1945                        .item
 1946                        .upgrade()
 1947                        .and_then(|v| pane.index_for_item(v.as_ref()))
 1948                    {
 1949                        let prev_active_item_index = pane.active_item_index();
 1950                        pane.nav_history_mut().set_mode(mode);
 1951                        pane.activate_item(index, true, true, window, cx);
 1952                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1953
 1954                        let mut navigated = prev_active_item_index != pane.active_item_index();
 1955                        if let Some(data) = entry.data {
 1956                            navigated |= pane.active_item()?.navigate(data, window, cx);
 1957                        }
 1958
 1959                        if navigated {
 1960                            break None;
 1961                        }
 1962                    } else {
 1963                        // If the item is no longer present in this pane, then retrieve its
 1964                        // path info in order to reopen it.
 1965                        break pane
 1966                            .nav_history()
 1967                            .path_for_item(entry.item.id())
 1968                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 1969                    }
 1970                }
 1971            })
 1972        } else {
 1973            None
 1974        };
 1975
 1976        if let Some((project_path, abs_path, entry)) = to_load {
 1977            // If the item was no longer present, then load it again from its previous path, first try the local path
 1978            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 1979
 1980            cx.spawn_in(window, async move  |workspace, cx| {
 1981                let open_by_project_path = open_by_project_path.await;
 1982                let mut navigated = false;
 1983                match open_by_project_path
 1984                    .with_context(|| format!("Navigating to {project_path:?}"))
 1985                {
 1986                    Ok((project_entry_id, build_item)) => {
 1987                        let prev_active_item_id = pane.update(cx, |pane, _| {
 1988                            pane.nav_history_mut().set_mode(mode);
 1989                            pane.active_item().map(|p| p.item_id())
 1990                        })?;
 1991
 1992                        pane.update_in(cx, |pane, window, cx| {
 1993                            let item = pane.open_item(
 1994                                project_entry_id,
 1995                                project_path,
 1996                                true,
 1997                                entry.is_preview,
 1998                                true,
 1999                                None,
 2000                                window, cx,
 2001                                build_item,
 2002                            );
 2003                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2004                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2005                            if let Some(data) = entry.data {
 2006                                navigated |= item.navigate(data, window, cx);
 2007                            }
 2008                        })?;
 2009                    }
 2010                    Err(open_by_project_path_e) => {
 2011                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2012                        // and its worktree is now dropped
 2013                        if let Some(abs_path) = abs_path {
 2014                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2015                                pane.nav_history_mut().set_mode(mode);
 2016                                pane.active_item().map(|p| p.item_id())
 2017                            })?;
 2018                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2019                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2020                            })?;
 2021                            match open_by_abs_path
 2022                                .await
 2023                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2024                            {
 2025                                Ok(item) => {
 2026                                    pane.update_in(cx, |pane, window, cx| {
 2027                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2028                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2029                                        if let Some(data) = entry.data {
 2030                                            navigated |= item.navigate(data, window, cx);
 2031                                        }
 2032                                    })?;
 2033                                }
 2034                                Err(open_by_abs_path_e) => {
 2035                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2036                                }
 2037                            }
 2038                        }
 2039                    }
 2040                }
 2041
 2042                if !navigated {
 2043                    workspace
 2044                        .update_in(cx, |workspace, window, cx| {
 2045                            Self::navigate_history(workspace, pane, mode, window, cx)
 2046                        })?
 2047                        .await?;
 2048                }
 2049
 2050                Ok(())
 2051            })
 2052        } else {
 2053            Task::ready(Ok(()))
 2054        }
 2055    }
 2056
 2057    pub fn go_back(
 2058        &mut self,
 2059        pane: WeakEntity<Pane>,
 2060        window: &mut Window,
 2061        cx: &mut Context<Workspace>,
 2062    ) -> Task<Result<()>> {
 2063        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2064    }
 2065
 2066    pub fn go_forward(
 2067        &mut self,
 2068        pane: WeakEntity<Pane>,
 2069        window: &mut Window,
 2070        cx: &mut Context<Workspace>,
 2071    ) -> Task<Result<()>> {
 2072        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2073    }
 2074
 2075    pub fn reopen_closed_item(
 2076        &mut self,
 2077        window: &mut Window,
 2078        cx: &mut Context<Workspace>,
 2079    ) -> Task<Result<()>> {
 2080        self.navigate_history(
 2081            self.active_pane().downgrade(),
 2082            NavigationMode::ReopeningClosedItem,
 2083            window,
 2084            cx,
 2085        )
 2086    }
 2087
 2088    pub fn client(&self) -> &Arc<Client> {
 2089        &self.app_state.client
 2090    }
 2091
 2092    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2093        self.titlebar_item = Some(item);
 2094        cx.notify();
 2095    }
 2096
 2097    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2098        self.on_prompt_for_new_path = Some(prompt)
 2099    }
 2100
 2101    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2102        self.on_prompt_for_open_path = Some(prompt)
 2103    }
 2104
 2105    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2106        self.terminal_provider = Some(Box::new(provider));
 2107    }
 2108
 2109    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2110        self.debugger_provider = Some(Arc::new(provider));
 2111    }
 2112
 2113    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2114        self.debugger_provider.clone()
 2115    }
 2116
 2117    pub fn prompt_for_open_path(
 2118        &mut self,
 2119        path_prompt_options: PathPromptOptions,
 2120        lister: DirectoryLister,
 2121        window: &mut Window,
 2122        cx: &mut Context<Self>,
 2123    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2124        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2125            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2126            let rx = prompt(self, lister, window, cx);
 2127            self.on_prompt_for_open_path = Some(prompt);
 2128            rx
 2129        } else {
 2130            let (tx, rx) = oneshot::channel();
 2131            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2132
 2133            cx.spawn_in(window, async move |workspace, cx| {
 2134                let Ok(result) = abs_path.await else {
 2135                    return Ok(());
 2136                };
 2137
 2138                match result {
 2139                    Ok(result) => {
 2140                        tx.send(result).ok();
 2141                    }
 2142                    Err(err) => {
 2143                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2144                            workspace.show_portal_error(err.to_string(), cx);
 2145                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2146                            let rx = prompt(workspace, lister, window, cx);
 2147                            workspace.on_prompt_for_open_path = Some(prompt);
 2148                            rx
 2149                        })?;
 2150                        if let Ok(path) = rx.await {
 2151                            tx.send(path).ok();
 2152                        }
 2153                    }
 2154                };
 2155                anyhow::Ok(())
 2156            })
 2157            .detach();
 2158
 2159            rx
 2160        }
 2161    }
 2162
 2163    pub fn prompt_for_new_path(
 2164        &mut self,
 2165        lister: DirectoryLister,
 2166        suggested_name: Option<String>,
 2167        window: &mut Window,
 2168        cx: &mut Context<Self>,
 2169    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2170        if self.project.read(cx).is_via_collab()
 2171            || self.project.read(cx).is_via_remote_server()
 2172            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2173        {
 2174            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2175            let rx = prompt(self, lister, window, cx);
 2176            self.on_prompt_for_new_path = Some(prompt);
 2177            return rx;
 2178        }
 2179
 2180        let (tx, rx) = oneshot::channel();
 2181        cx.spawn_in(window, async move |workspace, cx| {
 2182            let abs_path = workspace.update(cx, |workspace, cx| {
 2183                let relative_to = workspace
 2184                    .most_recent_active_path(cx)
 2185                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2186                    .or_else(|| {
 2187                        let project = workspace.project.read(cx);
 2188                        project.visible_worktrees(cx).find_map(|worktree| {
 2189                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2190                        })
 2191                    })
 2192                    .or_else(std::env::home_dir)
 2193                    .unwrap_or_else(|| PathBuf::from(""));
 2194                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2195            })?;
 2196            let abs_path = match abs_path.await? {
 2197                Ok(path) => path,
 2198                Err(err) => {
 2199                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2200                        workspace.show_portal_error(err.to_string(), cx);
 2201
 2202                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2203                        let rx = prompt(workspace, lister, window, cx);
 2204                        workspace.on_prompt_for_new_path = Some(prompt);
 2205                        rx
 2206                    })?;
 2207                    if let Ok(path) = rx.await {
 2208                        tx.send(path).ok();
 2209                    }
 2210                    return anyhow::Ok(());
 2211                }
 2212            };
 2213
 2214            tx.send(abs_path.map(|path| vec![path])).ok();
 2215            anyhow::Ok(())
 2216        })
 2217        .detach();
 2218
 2219        rx
 2220    }
 2221
 2222    pub fn titlebar_item(&self) -> Option<AnyView> {
 2223        self.titlebar_item.clone()
 2224    }
 2225
 2226    /// Call the given callback with a workspace whose project is local.
 2227    ///
 2228    /// If the given workspace has a local project, then it will be passed
 2229    /// to the callback. Otherwise, a new empty window will be created.
 2230    pub fn with_local_workspace<T, F>(
 2231        &mut self,
 2232        window: &mut Window,
 2233        cx: &mut Context<Self>,
 2234        callback: F,
 2235    ) -> Task<Result<T>>
 2236    where
 2237        T: 'static,
 2238        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2239    {
 2240        if self.project.read(cx).is_local() {
 2241            Task::ready(Ok(callback(self, window, cx)))
 2242        } else {
 2243            let env = self.project.read(cx).cli_environment(cx);
 2244            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, cx);
 2245            cx.spawn_in(window, async move |_vh, cx| {
 2246                let (workspace, _) = task.await?;
 2247                workspace.update(cx, callback)
 2248            })
 2249        }
 2250    }
 2251
 2252    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2253        self.project.read(cx).worktrees(cx)
 2254    }
 2255
 2256    pub fn visible_worktrees<'a>(
 2257        &self,
 2258        cx: &'a App,
 2259    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2260        self.project.read(cx).visible_worktrees(cx)
 2261    }
 2262
 2263    #[cfg(any(test, feature = "test-support"))]
 2264    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2265        let futures = self
 2266            .worktrees(cx)
 2267            .filter_map(|worktree| worktree.read(cx).as_local())
 2268            .map(|worktree| worktree.scan_complete())
 2269            .collect::<Vec<_>>();
 2270        async move {
 2271            for future in futures {
 2272                future.await;
 2273            }
 2274        }
 2275    }
 2276
 2277    pub fn close_global(cx: &mut App) {
 2278        cx.defer(|cx| {
 2279            cx.windows().iter().find(|window| {
 2280                window
 2281                    .update(cx, |_, window, _| {
 2282                        if window.is_window_active() {
 2283                            //This can only get called when the window's project connection has been lost
 2284                            //so we don't need to prompt the user for anything and instead just close the window
 2285                            window.remove_window();
 2286                            true
 2287                        } else {
 2288                            false
 2289                        }
 2290                    })
 2291                    .unwrap_or(false)
 2292            });
 2293        });
 2294    }
 2295
 2296    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2297        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2298        cx.spawn_in(window, async move |_, cx| {
 2299            if prepare.await? {
 2300                cx.update(|window, _cx| window.remove_window())?;
 2301            }
 2302            anyhow::Ok(())
 2303        })
 2304        .detach_and_log_err(cx)
 2305    }
 2306
 2307    pub fn move_focused_panel_to_next_position(
 2308        &mut self,
 2309        _: &MoveFocusedPanelToNextPosition,
 2310        window: &mut Window,
 2311        cx: &mut Context<Self>,
 2312    ) {
 2313        let docks = self.all_docks();
 2314        let active_dock = docks
 2315            .into_iter()
 2316            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2317
 2318        if let Some(dock) = active_dock {
 2319            dock.update(cx, |dock, cx| {
 2320                let active_panel = dock
 2321                    .active_panel()
 2322                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2323
 2324                if let Some(panel) = active_panel {
 2325                    panel.move_to_next_position(window, cx);
 2326                }
 2327            })
 2328        }
 2329    }
 2330
 2331    pub fn prepare_to_close(
 2332        &mut self,
 2333        close_intent: CloseIntent,
 2334        window: &mut Window,
 2335        cx: &mut Context<Self>,
 2336    ) -> Task<Result<bool>> {
 2337        let active_call = self.active_call().cloned();
 2338
 2339        // On Linux and Windows, closing the last window should restore the last workspace.
 2340        let save_last_workspace = cfg!(not(target_os = "macos"))
 2341            && close_intent != CloseIntent::ReplaceWindow
 2342            && cx.windows().len() == 1;
 2343
 2344        cx.spawn_in(window, async move |this, cx| {
 2345            let workspace_count = cx.update(|_window, cx| {
 2346                cx.windows()
 2347                    .iter()
 2348                    .filter(|window| window.downcast::<Workspace>().is_some())
 2349                    .count()
 2350            })?;
 2351
 2352            if let Some(active_call) = active_call
 2353                && workspace_count == 1
 2354                && active_call.read_with(cx, |call, _| call.room().is_some())?
 2355            {
 2356                if close_intent == CloseIntent::CloseWindow {
 2357                    let answer = cx.update(|window, cx| {
 2358                        window.prompt(
 2359                            PromptLevel::Warning,
 2360                            "Do you want to leave the current call?",
 2361                            None,
 2362                            &["Close window and hang up", "Cancel"],
 2363                            cx,
 2364                        )
 2365                    })?;
 2366
 2367                    if answer.await.log_err() == Some(1) {
 2368                        return anyhow::Ok(false);
 2369                    } else {
 2370                        active_call
 2371                            .update(cx, |call, cx| call.hang_up(cx))?
 2372                            .await
 2373                            .log_err();
 2374                    }
 2375                }
 2376                if close_intent == CloseIntent::ReplaceWindow {
 2377                    _ = active_call.update(cx, |this, cx| {
 2378                        let workspace = cx
 2379                            .windows()
 2380                            .iter()
 2381                            .filter_map(|window| window.downcast::<Workspace>())
 2382                            .next()
 2383                            .unwrap();
 2384                        let project = workspace.read(cx)?.project.clone();
 2385                        if project.read(cx).is_shared() {
 2386                            this.unshare_project(project, cx)?;
 2387                        }
 2388                        Ok::<_, anyhow::Error>(())
 2389                    })?;
 2390                }
 2391            }
 2392
 2393            let save_result = this
 2394                .update_in(cx, |this, window, cx| {
 2395                    this.save_all_internal(SaveIntent::Close, window, cx)
 2396                })?
 2397                .await;
 2398
 2399            // If we're not quitting, but closing, we remove the workspace from
 2400            // the current session.
 2401            if close_intent != CloseIntent::Quit
 2402                && !save_last_workspace
 2403                && save_result.as_ref().is_ok_and(|&res| res)
 2404            {
 2405                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2406                    .await;
 2407            }
 2408
 2409            save_result
 2410        })
 2411    }
 2412
 2413    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2414        self.save_all_internal(
 2415            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2416            window,
 2417            cx,
 2418        )
 2419        .detach_and_log_err(cx);
 2420    }
 2421
 2422    fn send_keystrokes(
 2423        &mut self,
 2424        action: &SendKeystrokes,
 2425        window: &mut Window,
 2426        cx: &mut Context<Self>,
 2427    ) {
 2428        let keystrokes: Vec<Keystroke> = action
 2429            .0
 2430            .split(' ')
 2431            .flat_map(|k| Keystroke::parse(k).log_err())
 2432            .collect();
 2433        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2434    }
 2435
 2436    pub fn send_keystrokes_impl(
 2437        &mut self,
 2438        keystrokes: Vec<Keystroke>,
 2439        window: &mut Window,
 2440        cx: &mut Context<Self>,
 2441    ) -> Shared<Task<()>> {
 2442        let mut state = self.dispatching_keystrokes.borrow_mut();
 2443        if !state.dispatched.insert(keystrokes.clone()) {
 2444            cx.propagate();
 2445            return state.task.clone().unwrap();
 2446        }
 2447
 2448        state.queue.extend(keystrokes);
 2449
 2450        let keystrokes = self.dispatching_keystrokes.clone();
 2451        if state.task.is_none() {
 2452            state.task = Some(
 2453                window
 2454                    .spawn(cx, async move |cx| {
 2455                        // limit to 100 keystrokes to avoid infinite recursion.
 2456                        for _ in 0..100 {
 2457                            let mut state = keystrokes.borrow_mut();
 2458                            let Some(keystroke) = state.queue.pop_front() else {
 2459                                state.dispatched.clear();
 2460                                state.task.take();
 2461                                return;
 2462                            };
 2463                            drop(state);
 2464                            cx.update(|window, cx| {
 2465                                let focused = window.focused(cx);
 2466                                window.dispatch_keystroke(keystroke.clone(), cx);
 2467                                if window.focused(cx) != focused {
 2468                                    // dispatch_keystroke may cause the focus to change.
 2469                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2470                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2471                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2472                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2473                                    // )
 2474                                    window.draw(cx).clear();
 2475                                }
 2476                            })
 2477                            .ok();
 2478                        }
 2479
 2480                        *keystrokes.borrow_mut() = Default::default();
 2481                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2482                    })
 2483                    .shared(),
 2484            );
 2485        }
 2486        state.task.clone().unwrap()
 2487    }
 2488
 2489    fn save_all_internal(
 2490        &mut self,
 2491        mut save_intent: SaveIntent,
 2492        window: &mut Window,
 2493        cx: &mut Context<Self>,
 2494    ) -> Task<Result<bool>> {
 2495        if self.project.read(cx).is_disconnected(cx) {
 2496            return Task::ready(Ok(true));
 2497        }
 2498        let dirty_items = self
 2499            .panes
 2500            .iter()
 2501            .flat_map(|pane| {
 2502                pane.read(cx).items().filter_map(|item| {
 2503                    if item.is_dirty(cx) {
 2504                        item.tab_content_text(0, cx);
 2505                        Some((pane.downgrade(), item.boxed_clone()))
 2506                    } else {
 2507                        None
 2508                    }
 2509                })
 2510            })
 2511            .collect::<Vec<_>>();
 2512
 2513        let project = self.project.clone();
 2514        cx.spawn_in(window, async move |workspace, cx| {
 2515            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2516                let (serialize_tasks, remaining_dirty_items) =
 2517                    workspace.update_in(cx, |workspace, window, cx| {
 2518                        let mut remaining_dirty_items = Vec::new();
 2519                        let mut serialize_tasks = Vec::new();
 2520                        for (pane, item) in dirty_items {
 2521                            if let Some(task) = item
 2522                                .to_serializable_item_handle(cx)
 2523                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2524                            {
 2525                                serialize_tasks.push(task);
 2526                            } else {
 2527                                remaining_dirty_items.push((pane, item));
 2528                            }
 2529                        }
 2530                        (serialize_tasks, remaining_dirty_items)
 2531                    })?;
 2532
 2533                futures::future::try_join_all(serialize_tasks).await?;
 2534
 2535                if remaining_dirty_items.len() > 1 {
 2536                    let answer = workspace.update_in(cx, |_, window, cx| {
 2537                        let detail = Pane::file_names_for_prompt(
 2538                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2539                            cx,
 2540                        );
 2541                        window.prompt(
 2542                            PromptLevel::Warning,
 2543                            "Do you want to save all changes in the following files?",
 2544                            Some(&detail),
 2545                            &["Save all", "Discard all", "Cancel"],
 2546                            cx,
 2547                        )
 2548                    })?;
 2549                    match answer.await.log_err() {
 2550                        Some(0) => save_intent = SaveIntent::SaveAll,
 2551                        Some(1) => save_intent = SaveIntent::Skip,
 2552                        Some(2) => return Ok(false),
 2553                        _ => {}
 2554                    }
 2555                }
 2556
 2557                remaining_dirty_items
 2558            } else {
 2559                dirty_items
 2560            };
 2561
 2562            for (pane, item) in dirty_items {
 2563                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2564                    (
 2565                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2566                        item.project_entry_ids(cx),
 2567                    )
 2568                })?;
 2569                if (singleton || !project_entry_ids.is_empty())
 2570                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2571                {
 2572                    return Ok(false);
 2573                }
 2574            }
 2575            Ok(true)
 2576        })
 2577    }
 2578
 2579    pub fn open_workspace_for_paths(
 2580        &mut self,
 2581        replace_current_window: bool,
 2582        paths: Vec<PathBuf>,
 2583        window: &mut Window,
 2584        cx: &mut Context<Self>,
 2585    ) -> Task<Result<()>> {
 2586        let window_handle = window.window_handle().downcast::<Self>();
 2587        let is_remote = self.project.read(cx).is_via_collab();
 2588        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2589        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2590
 2591        let window_to_replace = if replace_current_window {
 2592            window_handle
 2593        } else if is_remote || has_worktree || has_dirty_items {
 2594            None
 2595        } else {
 2596            window_handle
 2597        };
 2598        let app_state = self.app_state.clone();
 2599
 2600        cx.spawn(async move |_, cx| {
 2601            cx.update(|cx| {
 2602                open_paths(
 2603                    &paths,
 2604                    app_state,
 2605                    OpenOptions {
 2606                        replace_window: window_to_replace,
 2607                        ..Default::default()
 2608                    },
 2609                    cx,
 2610                )
 2611            })?
 2612            .await?;
 2613            Ok(())
 2614        })
 2615    }
 2616
 2617    #[allow(clippy::type_complexity)]
 2618    pub fn open_paths(
 2619        &mut self,
 2620        mut abs_paths: Vec<PathBuf>,
 2621        options: OpenOptions,
 2622        pane: Option<WeakEntity<Pane>>,
 2623        window: &mut Window,
 2624        cx: &mut Context<Self>,
 2625    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2626        let fs = self.app_state.fs.clone();
 2627
 2628        // Sort the paths to ensure we add worktrees for parents before their children.
 2629        abs_paths.sort_unstable();
 2630        cx.spawn_in(window, async move |this, cx| {
 2631            let mut tasks = Vec::with_capacity(abs_paths.len());
 2632
 2633            for abs_path in &abs_paths {
 2634                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2635                    OpenVisible::All => Some(true),
 2636                    OpenVisible::None => Some(false),
 2637                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2638                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2639                        Some(None) => Some(true),
 2640                        None => None,
 2641                    },
 2642                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2643                        Some(Some(metadata)) => Some(metadata.is_dir),
 2644                        Some(None) => Some(false),
 2645                        None => None,
 2646                    },
 2647                };
 2648                let project_path = match visible {
 2649                    Some(visible) => match this
 2650                        .update(cx, |this, cx| {
 2651                            Workspace::project_path_for_path(
 2652                                this.project.clone(),
 2653                                abs_path,
 2654                                visible,
 2655                                cx,
 2656                            )
 2657                        })
 2658                        .log_err()
 2659                    {
 2660                        Some(project_path) => project_path.await.log_err(),
 2661                        None => None,
 2662                    },
 2663                    None => None,
 2664                };
 2665
 2666                let this = this.clone();
 2667                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2668                let fs = fs.clone();
 2669                let pane = pane.clone();
 2670                let task = cx.spawn(async move |cx| {
 2671                    let (worktree, project_path) = project_path?;
 2672                    if fs.is_dir(&abs_path).await {
 2673                        this.update(cx, |workspace, cx| {
 2674                            let worktree = worktree.read(cx);
 2675                            let worktree_abs_path = worktree.abs_path();
 2676                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2677                                worktree.root_entry()
 2678                            } else {
 2679                                abs_path
 2680                                    .strip_prefix(worktree_abs_path.as_ref())
 2681                                    .ok()
 2682                                    .and_then(|relative_path| {
 2683                                        let relative_path =
 2684                                            RelPath::new(relative_path, PathStyle::local())
 2685                                                .log_err()?;
 2686                                        worktree.entry_for_path(&relative_path)
 2687                                    })
 2688                            }
 2689                            .map(|entry| entry.id);
 2690                            if let Some(entry_id) = entry_id {
 2691                                workspace.project.update(cx, |_, cx| {
 2692                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2693                                })
 2694                            }
 2695                        })
 2696                        .ok()?;
 2697                        None
 2698                    } else {
 2699                        Some(
 2700                            this.update_in(cx, |this, window, cx| {
 2701                                this.open_path(
 2702                                    project_path,
 2703                                    pane,
 2704                                    options.focus.unwrap_or(true),
 2705                                    window,
 2706                                    cx,
 2707                                )
 2708                            })
 2709                            .ok()?
 2710                            .await,
 2711                        )
 2712                    }
 2713                });
 2714                tasks.push(task);
 2715            }
 2716
 2717            futures::future::join_all(tasks).await
 2718        })
 2719    }
 2720
 2721    pub fn open_resolved_path(
 2722        &mut self,
 2723        path: ResolvedPath,
 2724        window: &mut Window,
 2725        cx: &mut Context<Self>,
 2726    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2727        match path {
 2728            ResolvedPath::ProjectPath { project_path, .. } => {
 2729                self.open_path(project_path, None, true, window, cx)
 2730            }
 2731            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2732                PathBuf::from(path),
 2733                OpenOptions {
 2734                    visible: Some(OpenVisible::None),
 2735                    ..Default::default()
 2736                },
 2737                window,
 2738                cx,
 2739            ),
 2740        }
 2741    }
 2742
 2743    pub fn absolute_path_of_worktree(
 2744        &self,
 2745        worktree_id: WorktreeId,
 2746        cx: &mut Context<Self>,
 2747    ) -> Option<PathBuf> {
 2748        self.project
 2749            .read(cx)
 2750            .worktree_for_id(worktree_id, cx)
 2751            // TODO: use `abs_path` or `root_dir`
 2752            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2753    }
 2754
 2755    fn add_folder_to_project(
 2756        &mut self,
 2757        _: &AddFolderToProject,
 2758        window: &mut Window,
 2759        cx: &mut Context<Self>,
 2760    ) {
 2761        let project = self.project.read(cx);
 2762        if project.is_via_collab() {
 2763            self.show_error(
 2764                &anyhow!("You cannot add folders to someone else's project"),
 2765                cx,
 2766            );
 2767            return;
 2768        }
 2769        let paths = self.prompt_for_open_path(
 2770            PathPromptOptions {
 2771                files: false,
 2772                directories: true,
 2773                multiple: true,
 2774                prompt: None,
 2775            },
 2776            DirectoryLister::Project(self.project.clone()),
 2777            window,
 2778            cx,
 2779        );
 2780        cx.spawn_in(window, async move |this, cx| {
 2781            if let Some(paths) = paths.await.log_err().flatten() {
 2782                let results = this
 2783                    .update_in(cx, |this, window, cx| {
 2784                        this.open_paths(
 2785                            paths,
 2786                            OpenOptions {
 2787                                visible: Some(OpenVisible::All),
 2788                                ..Default::default()
 2789                            },
 2790                            None,
 2791                            window,
 2792                            cx,
 2793                        )
 2794                    })?
 2795                    .await;
 2796                for result in results.into_iter().flatten() {
 2797                    result.log_err();
 2798                }
 2799            }
 2800            anyhow::Ok(())
 2801        })
 2802        .detach_and_log_err(cx);
 2803    }
 2804
 2805    pub fn project_path_for_path(
 2806        project: Entity<Project>,
 2807        abs_path: &Path,
 2808        visible: bool,
 2809        cx: &mut App,
 2810    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2811        let entry = project.update(cx, |project, cx| {
 2812            project.find_or_create_worktree(abs_path, visible, cx)
 2813        });
 2814        cx.spawn(async move |cx| {
 2815            let (worktree, path) = entry.await?;
 2816            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2817            Ok((
 2818                worktree,
 2819                ProjectPath {
 2820                    worktree_id,
 2821                    path: path,
 2822                },
 2823            ))
 2824        })
 2825    }
 2826
 2827    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2828        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2829    }
 2830
 2831    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2832        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2833    }
 2834
 2835    pub fn items_of_type<'a, T: Item>(
 2836        &'a self,
 2837        cx: &'a App,
 2838    ) -> impl 'a + Iterator<Item = Entity<T>> {
 2839        self.panes
 2840            .iter()
 2841            .flat_map(|pane| pane.read(cx).items_of_type())
 2842    }
 2843
 2844    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 2845        self.active_pane().read(cx).active_item()
 2846    }
 2847
 2848    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 2849        let item = self.active_item(cx)?;
 2850        item.to_any().downcast::<I>().ok()
 2851    }
 2852
 2853    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 2854        self.active_item(cx).and_then(|item| item.project_path(cx))
 2855    }
 2856
 2857    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 2858        self.recent_navigation_history_iter(cx)
 2859            .filter_map(|(path, abs_path)| {
 2860                let worktree = self
 2861                    .project
 2862                    .read(cx)
 2863                    .worktree_for_id(path.worktree_id, cx)?;
 2864                if worktree.read(cx).is_visible() {
 2865                    abs_path
 2866                } else {
 2867                    None
 2868                }
 2869            })
 2870            .next()
 2871    }
 2872
 2873    pub fn save_active_item(
 2874        &mut self,
 2875        save_intent: SaveIntent,
 2876        window: &mut Window,
 2877        cx: &mut App,
 2878    ) -> Task<Result<()>> {
 2879        let project = self.project.clone();
 2880        let pane = self.active_pane();
 2881        let item = pane.read(cx).active_item();
 2882        let pane = pane.downgrade();
 2883
 2884        window.spawn(cx, async move |cx| {
 2885            if let Some(item) = item {
 2886                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 2887                    .await
 2888                    .map(|_| ())
 2889            } else {
 2890                Ok(())
 2891            }
 2892        })
 2893    }
 2894
 2895    pub fn close_inactive_items_and_panes(
 2896        &mut self,
 2897        action: &CloseInactiveTabsAndPanes,
 2898        window: &mut Window,
 2899        cx: &mut Context<Self>,
 2900    ) {
 2901        if let Some(task) = self.close_all_internal(
 2902            true,
 2903            action.save_intent.unwrap_or(SaveIntent::Close),
 2904            window,
 2905            cx,
 2906        ) {
 2907            task.detach_and_log_err(cx)
 2908        }
 2909    }
 2910
 2911    pub fn close_all_items_and_panes(
 2912        &mut self,
 2913        action: &CloseAllItemsAndPanes,
 2914        window: &mut Window,
 2915        cx: &mut Context<Self>,
 2916    ) {
 2917        if let Some(task) = self.close_all_internal(
 2918            false,
 2919            action.save_intent.unwrap_or(SaveIntent::Close),
 2920            window,
 2921            cx,
 2922        ) {
 2923            task.detach_and_log_err(cx)
 2924        }
 2925    }
 2926
 2927    fn close_all_internal(
 2928        &mut self,
 2929        retain_active_pane: bool,
 2930        save_intent: SaveIntent,
 2931        window: &mut Window,
 2932        cx: &mut Context<Self>,
 2933    ) -> Option<Task<Result<()>>> {
 2934        let current_pane = self.active_pane();
 2935
 2936        let mut tasks = Vec::new();
 2937
 2938        if retain_active_pane {
 2939            let current_pane_close = current_pane.update(cx, |pane, cx| {
 2940                pane.close_other_items(
 2941                    &CloseOtherItems {
 2942                        save_intent: None,
 2943                        close_pinned: false,
 2944                    },
 2945                    None,
 2946                    window,
 2947                    cx,
 2948                )
 2949            });
 2950
 2951            tasks.push(current_pane_close);
 2952        }
 2953
 2954        for pane in self.panes() {
 2955            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 2956                continue;
 2957            }
 2958
 2959            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 2960                pane.close_all_items(
 2961                    &CloseAllItems {
 2962                        save_intent: Some(save_intent),
 2963                        close_pinned: false,
 2964                    },
 2965                    window,
 2966                    cx,
 2967                )
 2968            });
 2969
 2970            tasks.push(close_pane_items)
 2971        }
 2972
 2973        if tasks.is_empty() {
 2974            None
 2975        } else {
 2976            Some(cx.spawn_in(window, async move |_, _| {
 2977                for task in tasks {
 2978                    task.await?
 2979                }
 2980                Ok(())
 2981            }))
 2982        }
 2983    }
 2984
 2985    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 2986        self.dock_at_position(position).read(cx).is_open()
 2987    }
 2988
 2989    pub fn toggle_dock(
 2990        &mut self,
 2991        dock_side: DockPosition,
 2992        window: &mut Window,
 2993        cx: &mut Context<Self>,
 2994    ) {
 2995        let mut focus_center = false;
 2996        let mut reveal_dock = false;
 2997
 2998        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 2999        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3000        if was_visible {
 3001            self.save_open_dock_positions(cx);
 3002        }
 3003
 3004        let dock = self.dock_at_position(dock_side);
 3005        dock.update(cx, |dock, cx| {
 3006            dock.set_open(!was_visible, window, cx);
 3007
 3008            if dock.active_panel().is_none() {
 3009                let Some(panel_ix) = dock
 3010                    .first_enabled_panel_idx(cx)
 3011                    .log_with_level(log::Level::Info)
 3012                else {
 3013                    return;
 3014                };
 3015                dock.activate_panel(panel_ix, window, cx);
 3016            }
 3017
 3018            if let Some(active_panel) = dock.active_panel() {
 3019                if was_visible {
 3020                    if active_panel
 3021                        .panel_focus_handle(cx)
 3022                        .contains_focused(window, cx)
 3023                    {
 3024                        focus_center = true;
 3025                    }
 3026                } else {
 3027                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3028                    window.focus(focus_handle);
 3029                    reveal_dock = true;
 3030                }
 3031            }
 3032        });
 3033
 3034        if reveal_dock {
 3035            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3036        }
 3037
 3038        if focus_center {
 3039            self.active_pane
 3040                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3041        }
 3042
 3043        cx.notify();
 3044        self.serialize_workspace(window, cx);
 3045    }
 3046
 3047    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3048        self.all_docks().into_iter().find(|&dock| {
 3049            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3050        })
 3051    }
 3052
 3053    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3054        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3055            self.save_open_dock_positions(cx);
 3056            dock.update(cx, |dock, cx| {
 3057                dock.set_open(false, window, cx);
 3058            });
 3059            return true;
 3060        }
 3061        false
 3062    }
 3063
 3064    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3065        self.save_open_dock_positions(cx);
 3066        for dock in self.all_docks() {
 3067            dock.update(cx, |dock, cx| {
 3068                dock.set_open(false, window, cx);
 3069            });
 3070        }
 3071
 3072        cx.focus_self(window);
 3073        cx.notify();
 3074        self.serialize_workspace(window, cx);
 3075    }
 3076
 3077    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3078        self.all_docks()
 3079            .into_iter()
 3080            .filter_map(|dock| {
 3081                let dock_ref = dock.read(cx);
 3082                if dock_ref.is_open() {
 3083                    Some(dock_ref.position())
 3084                } else {
 3085                    None
 3086                }
 3087            })
 3088            .collect()
 3089    }
 3090
 3091    /// Saves the positions of currently open docks.
 3092    ///
 3093    /// Updates `last_open_dock_positions` with positions of all currently open
 3094    /// docks, to later be restored by the 'Toggle All Docks' action.
 3095    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3096        let open_dock_positions = self.get_open_dock_positions(cx);
 3097        if !open_dock_positions.is_empty() {
 3098            self.last_open_dock_positions = open_dock_positions;
 3099        }
 3100    }
 3101
 3102    /// Toggles all docks between open and closed states.
 3103    ///
 3104    /// If any docks are open, closes all and remembers their positions. If all
 3105    /// docks are closed, restores the last remembered dock configuration.
 3106    fn toggle_all_docks(
 3107        &mut self,
 3108        _: &ToggleAllDocks,
 3109        window: &mut Window,
 3110        cx: &mut Context<Self>,
 3111    ) {
 3112        let open_dock_positions = self.get_open_dock_positions(cx);
 3113
 3114        if !open_dock_positions.is_empty() {
 3115            self.close_all_docks(window, cx);
 3116        } else if !self.last_open_dock_positions.is_empty() {
 3117            self.restore_last_open_docks(window, cx);
 3118        }
 3119    }
 3120
 3121    /// Reopens docks from the most recently remembered configuration.
 3122    ///
 3123    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3124    /// and clears the stored positions.
 3125    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3126        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3127
 3128        for position in positions_to_open {
 3129            let dock = self.dock_at_position(position);
 3130            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3131        }
 3132
 3133        cx.focus_self(window);
 3134        cx.notify();
 3135        self.serialize_workspace(window, cx);
 3136    }
 3137
 3138    /// Transfer focus to the panel of the given type.
 3139    pub fn focus_panel<T: Panel>(
 3140        &mut self,
 3141        window: &mut Window,
 3142        cx: &mut Context<Self>,
 3143    ) -> Option<Entity<T>> {
 3144        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3145        panel.to_any().downcast().ok()
 3146    }
 3147
 3148    /// Focus the panel of the given type if it isn't already focused. If it is
 3149    /// already focused, then transfer focus back to the workspace center.
 3150    pub fn toggle_panel_focus<T: Panel>(
 3151        &mut self,
 3152        window: &mut Window,
 3153        cx: &mut Context<Self>,
 3154    ) -> bool {
 3155        let mut did_focus_panel = false;
 3156        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3157            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3158            did_focus_panel
 3159        });
 3160        did_focus_panel
 3161    }
 3162
 3163    pub fn activate_panel_for_proto_id(
 3164        &mut self,
 3165        panel_id: PanelId,
 3166        window: &mut Window,
 3167        cx: &mut Context<Self>,
 3168    ) -> Option<Arc<dyn PanelHandle>> {
 3169        let mut panel = None;
 3170        for dock in self.all_docks() {
 3171            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3172                panel = dock.update(cx, |dock, cx| {
 3173                    dock.activate_panel(panel_index, window, cx);
 3174                    dock.set_open(true, window, cx);
 3175                    dock.active_panel().cloned()
 3176                });
 3177                break;
 3178            }
 3179        }
 3180
 3181        if panel.is_some() {
 3182            cx.notify();
 3183            self.serialize_workspace(window, cx);
 3184        }
 3185
 3186        panel
 3187    }
 3188
 3189    /// Focus or unfocus the given panel type, depending on the given callback.
 3190    fn focus_or_unfocus_panel<T: Panel>(
 3191        &mut self,
 3192        window: &mut Window,
 3193        cx: &mut Context<Self>,
 3194        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3195    ) -> Option<Arc<dyn PanelHandle>> {
 3196        let mut result_panel = None;
 3197        let mut serialize = false;
 3198        for dock in self.all_docks() {
 3199            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3200                let mut focus_center = false;
 3201                let panel = dock.update(cx, |dock, cx| {
 3202                    dock.activate_panel(panel_index, window, cx);
 3203
 3204                    let panel = dock.active_panel().cloned();
 3205                    if let Some(panel) = panel.as_ref() {
 3206                        if should_focus(&**panel, window, cx) {
 3207                            dock.set_open(true, window, cx);
 3208                            panel.panel_focus_handle(cx).focus(window);
 3209                        } else {
 3210                            focus_center = true;
 3211                        }
 3212                    }
 3213                    panel
 3214                });
 3215
 3216                if focus_center {
 3217                    self.active_pane
 3218                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3219                }
 3220
 3221                result_panel = panel;
 3222                serialize = true;
 3223                break;
 3224            }
 3225        }
 3226
 3227        if serialize {
 3228            self.serialize_workspace(window, cx);
 3229        }
 3230
 3231        cx.notify();
 3232        result_panel
 3233    }
 3234
 3235    /// Open the panel of the given type
 3236    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3237        for dock in self.all_docks() {
 3238            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3239                dock.update(cx, |dock, cx| {
 3240                    dock.activate_panel(panel_index, window, cx);
 3241                    dock.set_open(true, window, cx);
 3242                });
 3243            }
 3244        }
 3245    }
 3246
 3247    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3248        for dock in self.all_docks().iter() {
 3249            dock.update(cx, |dock, cx| {
 3250                if dock.panel::<T>().is_some() {
 3251                    dock.set_open(false, window, cx)
 3252                }
 3253            })
 3254        }
 3255    }
 3256
 3257    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3258        self.all_docks()
 3259            .iter()
 3260            .find_map(|dock| dock.read(cx).panel::<T>())
 3261    }
 3262
 3263    fn dismiss_zoomed_items_to_reveal(
 3264        &mut self,
 3265        dock_to_reveal: Option<DockPosition>,
 3266        window: &mut Window,
 3267        cx: &mut Context<Self>,
 3268    ) {
 3269        // If a center pane is zoomed, unzoom it.
 3270        for pane in &self.panes {
 3271            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3272                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3273            }
 3274        }
 3275
 3276        // If another dock is zoomed, hide it.
 3277        let mut focus_center = false;
 3278        for dock in self.all_docks() {
 3279            dock.update(cx, |dock, cx| {
 3280                if Some(dock.position()) != dock_to_reveal
 3281                    && let Some(panel) = dock.active_panel()
 3282                    && panel.is_zoomed(window, cx)
 3283                {
 3284                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3285                    dock.set_open(false, window, cx);
 3286                }
 3287            });
 3288        }
 3289
 3290        if focus_center {
 3291            self.active_pane
 3292                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3293        }
 3294
 3295        if self.zoomed_position != dock_to_reveal {
 3296            self.zoomed = None;
 3297            self.zoomed_position = None;
 3298            cx.emit(Event::ZoomChanged);
 3299        }
 3300
 3301        cx.notify();
 3302    }
 3303
 3304    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3305        let pane = cx.new(|cx| {
 3306            let mut pane = Pane::new(
 3307                self.weak_handle(),
 3308                self.project.clone(),
 3309                self.pane_history_timestamp.clone(),
 3310                None,
 3311                NewFile.boxed_clone(),
 3312                true,
 3313                window,
 3314                cx,
 3315            );
 3316            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3317            pane
 3318        });
 3319        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3320            .detach();
 3321        self.panes.push(pane.clone());
 3322
 3323        window.focus(&pane.focus_handle(cx));
 3324
 3325        cx.emit(Event::PaneAdded(pane.clone()));
 3326        pane
 3327    }
 3328
 3329    pub fn add_item_to_center(
 3330        &mut self,
 3331        item: Box<dyn ItemHandle>,
 3332        window: &mut Window,
 3333        cx: &mut Context<Self>,
 3334    ) -> bool {
 3335        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3336            if let Some(center_pane) = center_pane.upgrade() {
 3337                center_pane.update(cx, |pane, cx| {
 3338                    pane.add_item(item, true, true, None, window, cx)
 3339                });
 3340                true
 3341            } else {
 3342                false
 3343            }
 3344        } else {
 3345            false
 3346        }
 3347    }
 3348
 3349    pub fn add_item_to_active_pane(
 3350        &mut self,
 3351        item: Box<dyn ItemHandle>,
 3352        destination_index: Option<usize>,
 3353        focus_item: bool,
 3354        window: &mut Window,
 3355        cx: &mut App,
 3356    ) {
 3357        self.add_item(
 3358            self.active_pane.clone(),
 3359            item,
 3360            destination_index,
 3361            false,
 3362            focus_item,
 3363            window,
 3364            cx,
 3365        )
 3366    }
 3367
 3368    pub fn add_item(
 3369        &mut self,
 3370        pane: Entity<Pane>,
 3371        item: Box<dyn ItemHandle>,
 3372        destination_index: Option<usize>,
 3373        activate_pane: bool,
 3374        focus_item: bool,
 3375        window: &mut Window,
 3376        cx: &mut App,
 3377    ) {
 3378        pane.update(cx, |pane, cx| {
 3379            pane.add_item(
 3380                item,
 3381                activate_pane,
 3382                focus_item,
 3383                destination_index,
 3384                window,
 3385                cx,
 3386            )
 3387        });
 3388    }
 3389
 3390    pub fn split_item(
 3391        &mut self,
 3392        split_direction: SplitDirection,
 3393        item: Box<dyn ItemHandle>,
 3394        window: &mut Window,
 3395        cx: &mut Context<Self>,
 3396    ) {
 3397        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3398        self.add_item(new_pane, item, None, true, true, window, cx);
 3399    }
 3400
 3401    pub fn open_abs_path(
 3402        &mut self,
 3403        abs_path: PathBuf,
 3404        options: OpenOptions,
 3405        window: &mut Window,
 3406        cx: &mut Context<Self>,
 3407    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3408        cx.spawn_in(window, async move |workspace, cx| {
 3409            let open_paths_task_result = workspace
 3410                .update_in(cx, |workspace, window, cx| {
 3411                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3412                })
 3413                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3414                .await;
 3415            anyhow::ensure!(
 3416                open_paths_task_result.len() == 1,
 3417                "open abs path {abs_path:?} task returned incorrect number of results"
 3418            );
 3419            match open_paths_task_result
 3420                .into_iter()
 3421                .next()
 3422                .expect("ensured single task result")
 3423            {
 3424                Some(open_result) => {
 3425                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3426                }
 3427                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3428            }
 3429        })
 3430    }
 3431
 3432    pub fn split_abs_path(
 3433        &mut self,
 3434        abs_path: PathBuf,
 3435        visible: bool,
 3436        window: &mut Window,
 3437        cx: &mut Context<Self>,
 3438    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3439        let project_path_task =
 3440            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3441        cx.spawn_in(window, async move |this, cx| {
 3442            let (_, path) = project_path_task.await?;
 3443            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3444                .await
 3445        })
 3446    }
 3447
 3448    pub fn open_path(
 3449        &mut self,
 3450        path: impl Into<ProjectPath>,
 3451        pane: Option<WeakEntity<Pane>>,
 3452        focus_item: bool,
 3453        window: &mut Window,
 3454        cx: &mut App,
 3455    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3456        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3457    }
 3458
 3459    pub fn open_path_preview(
 3460        &mut self,
 3461        path: impl Into<ProjectPath>,
 3462        pane: Option<WeakEntity<Pane>>,
 3463        focus_item: bool,
 3464        allow_preview: bool,
 3465        activate: bool,
 3466        window: &mut Window,
 3467        cx: &mut App,
 3468    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3469        let pane = pane.unwrap_or_else(|| {
 3470            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3471                self.panes
 3472                    .first()
 3473                    .expect("There must be an active pane")
 3474                    .downgrade()
 3475            })
 3476        });
 3477
 3478        let project_path = path.into();
 3479        let task = self.load_path(project_path.clone(), window, cx);
 3480        window.spawn(cx, async move |cx| {
 3481            let (project_entry_id, build_item) = task.await?;
 3482
 3483            pane.update_in(cx, |pane, window, cx| {
 3484                pane.open_item(
 3485                    project_entry_id,
 3486                    project_path,
 3487                    focus_item,
 3488                    allow_preview,
 3489                    activate,
 3490                    None,
 3491                    window,
 3492                    cx,
 3493                    build_item,
 3494                )
 3495            })
 3496        })
 3497    }
 3498
 3499    pub fn split_path(
 3500        &mut self,
 3501        path: impl Into<ProjectPath>,
 3502        window: &mut Window,
 3503        cx: &mut Context<Self>,
 3504    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3505        self.split_path_preview(path, false, None, window, cx)
 3506    }
 3507
 3508    pub fn split_path_preview(
 3509        &mut self,
 3510        path: impl Into<ProjectPath>,
 3511        allow_preview: bool,
 3512        split_direction: Option<SplitDirection>,
 3513        window: &mut Window,
 3514        cx: &mut Context<Self>,
 3515    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3516        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3517            self.panes
 3518                .first()
 3519                .expect("There must be an active pane")
 3520                .downgrade()
 3521        });
 3522
 3523        if let Member::Pane(center_pane) = &self.center.root
 3524            && center_pane.read(cx).items_len() == 0
 3525        {
 3526            return self.open_path(path, Some(pane), true, window, cx);
 3527        }
 3528
 3529        let project_path = path.into();
 3530        let task = self.load_path(project_path.clone(), window, cx);
 3531        cx.spawn_in(window, async move |this, cx| {
 3532            let (project_entry_id, build_item) = task.await?;
 3533            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3534                let pane = pane.upgrade()?;
 3535                let new_pane = this.split_pane(
 3536                    pane,
 3537                    split_direction.unwrap_or(SplitDirection::Right),
 3538                    window,
 3539                    cx,
 3540                );
 3541                new_pane.update(cx, |new_pane, cx| {
 3542                    Some(new_pane.open_item(
 3543                        project_entry_id,
 3544                        project_path,
 3545                        true,
 3546                        allow_preview,
 3547                        true,
 3548                        None,
 3549                        window,
 3550                        cx,
 3551                        build_item,
 3552                    ))
 3553                })
 3554            })
 3555            .map(|option| option.context("pane was dropped"))?
 3556        })
 3557    }
 3558
 3559    fn load_path(
 3560        &mut self,
 3561        path: ProjectPath,
 3562        window: &mut Window,
 3563        cx: &mut App,
 3564    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3565        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3566        registry.open_path(self.project(), &path, window, cx)
 3567    }
 3568
 3569    pub fn find_project_item<T>(
 3570        &self,
 3571        pane: &Entity<Pane>,
 3572        project_item: &Entity<T::Item>,
 3573        cx: &App,
 3574    ) -> Option<Entity<T>>
 3575    where
 3576        T: ProjectItem,
 3577    {
 3578        use project::ProjectItem as _;
 3579        let project_item = project_item.read(cx);
 3580        let entry_id = project_item.entry_id(cx);
 3581        let project_path = project_item.project_path(cx);
 3582
 3583        let mut item = None;
 3584        if let Some(entry_id) = entry_id {
 3585            item = pane.read(cx).item_for_entry(entry_id, cx);
 3586        }
 3587        if item.is_none()
 3588            && let Some(project_path) = project_path
 3589        {
 3590            item = pane.read(cx).item_for_path(project_path, cx);
 3591        }
 3592
 3593        item.and_then(|item| item.downcast::<T>())
 3594    }
 3595
 3596    pub fn is_project_item_open<T>(
 3597        &self,
 3598        pane: &Entity<Pane>,
 3599        project_item: &Entity<T::Item>,
 3600        cx: &App,
 3601    ) -> bool
 3602    where
 3603        T: ProjectItem,
 3604    {
 3605        self.find_project_item::<T>(pane, project_item, cx)
 3606            .is_some()
 3607    }
 3608
 3609    pub fn open_project_item<T>(
 3610        &mut self,
 3611        pane: Entity<Pane>,
 3612        project_item: Entity<T::Item>,
 3613        activate_pane: bool,
 3614        focus_item: bool,
 3615        window: &mut Window,
 3616        cx: &mut Context<Self>,
 3617    ) -> Entity<T>
 3618    where
 3619        T: ProjectItem,
 3620    {
 3621        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3622            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3623            return item;
 3624        }
 3625
 3626        let item = pane.update(cx, |pane, cx| {
 3627            cx.new(|cx| {
 3628                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3629            })
 3630        });
 3631        let item_id = item.item_id();
 3632        let mut destination_index = None;
 3633        pane.update(cx, |pane, cx| {
 3634            if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation
 3635                && let Some(preview_item_id) = pane.preview_item_id()
 3636                && preview_item_id != item_id
 3637            {
 3638                destination_index = pane.close_current_preview_item(window, cx);
 3639            }
 3640            pane.set_preview_item_id(Some(item.item_id()), cx)
 3641        });
 3642
 3643        self.add_item(
 3644            pane,
 3645            Box::new(item.clone()),
 3646            destination_index,
 3647            activate_pane,
 3648            focus_item,
 3649            window,
 3650            cx,
 3651        );
 3652        item
 3653    }
 3654
 3655    pub fn open_shared_screen(
 3656        &mut self,
 3657        peer_id: PeerId,
 3658        window: &mut Window,
 3659        cx: &mut Context<Self>,
 3660    ) {
 3661        if let Some(shared_screen) =
 3662            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3663        {
 3664            self.active_pane.update(cx, |pane, cx| {
 3665                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3666            });
 3667        }
 3668    }
 3669
 3670    pub fn activate_item(
 3671        &mut self,
 3672        item: &dyn ItemHandle,
 3673        activate_pane: bool,
 3674        focus_item: bool,
 3675        window: &mut Window,
 3676        cx: &mut App,
 3677    ) -> bool {
 3678        let result = self.panes.iter().find_map(|pane| {
 3679            pane.read(cx)
 3680                .index_for_item(item)
 3681                .map(|ix| (pane.clone(), ix))
 3682        });
 3683        if let Some((pane, ix)) = result {
 3684            pane.update(cx, |pane, cx| {
 3685                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3686            });
 3687            true
 3688        } else {
 3689            false
 3690        }
 3691    }
 3692
 3693    fn activate_pane_at_index(
 3694        &mut self,
 3695        action: &ActivatePane,
 3696        window: &mut Window,
 3697        cx: &mut Context<Self>,
 3698    ) {
 3699        let panes = self.center.panes();
 3700        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3701            window.focus(&pane.focus_handle(cx));
 3702        } else {
 3703            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 3704                .detach();
 3705        }
 3706    }
 3707
 3708    fn move_item_to_pane_at_index(
 3709        &mut self,
 3710        action: &MoveItemToPane,
 3711        window: &mut Window,
 3712        cx: &mut Context<Self>,
 3713    ) {
 3714        let panes = self.center.panes();
 3715        let destination = match panes.get(action.destination) {
 3716            Some(&destination) => destination.clone(),
 3717            None => {
 3718                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3719                    return;
 3720                }
 3721                let direction = SplitDirection::Right;
 3722                let split_off_pane = self
 3723                    .find_pane_in_direction(direction, cx)
 3724                    .unwrap_or_else(|| self.active_pane.clone());
 3725                let new_pane = self.add_pane(window, cx);
 3726                if self
 3727                    .center
 3728                    .split(&split_off_pane, &new_pane, direction)
 3729                    .log_err()
 3730                    .is_none()
 3731                {
 3732                    return;
 3733                };
 3734                new_pane
 3735            }
 3736        };
 3737
 3738        if action.clone {
 3739            if self
 3740                .active_pane
 3741                .read(cx)
 3742                .active_item()
 3743                .is_some_and(|item| item.can_split(cx))
 3744            {
 3745                clone_active_item(
 3746                    self.database_id(),
 3747                    &self.active_pane,
 3748                    &destination,
 3749                    action.focus,
 3750                    window,
 3751                    cx,
 3752                );
 3753                return;
 3754            }
 3755        }
 3756        move_active_item(
 3757            &self.active_pane,
 3758            &destination,
 3759            action.focus,
 3760            true,
 3761            window,
 3762            cx,
 3763        )
 3764    }
 3765
 3766    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3767        let panes = self.center.panes();
 3768        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3769            let next_ix = (ix + 1) % panes.len();
 3770            let next_pane = panes[next_ix].clone();
 3771            window.focus(&next_pane.focus_handle(cx));
 3772        }
 3773    }
 3774
 3775    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3776        let panes = self.center.panes();
 3777        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3778            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3779            let prev_pane = panes[prev_ix].clone();
 3780            window.focus(&prev_pane.focus_handle(cx));
 3781        }
 3782    }
 3783
 3784    pub fn activate_pane_in_direction(
 3785        &mut self,
 3786        direction: SplitDirection,
 3787        window: &mut Window,
 3788        cx: &mut App,
 3789    ) {
 3790        use ActivateInDirectionTarget as Target;
 3791        enum Origin {
 3792            LeftDock,
 3793            RightDock,
 3794            BottomDock,
 3795            Center,
 3796        }
 3797
 3798        let origin: Origin = [
 3799            (&self.left_dock, Origin::LeftDock),
 3800            (&self.right_dock, Origin::RightDock),
 3801            (&self.bottom_dock, Origin::BottomDock),
 3802        ]
 3803        .into_iter()
 3804        .find_map(|(dock, origin)| {
 3805            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3806                Some(origin)
 3807            } else {
 3808                None
 3809            }
 3810        })
 3811        .unwrap_or(Origin::Center);
 3812
 3813        let get_last_active_pane = || {
 3814            let pane = self
 3815                .last_active_center_pane
 3816                .clone()
 3817                .unwrap_or_else(|| {
 3818                    self.panes
 3819                        .first()
 3820                        .expect("There must be an active pane")
 3821                        .downgrade()
 3822                })
 3823                .upgrade()?;
 3824            (pane.read(cx).items_len() != 0).then_some(pane)
 3825        };
 3826
 3827        let try_dock =
 3828            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 3829
 3830        let target = match (origin, direction) {
 3831            // We're in the center, so we first try to go to a different pane,
 3832            // otherwise try to go to a dock.
 3833            (Origin::Center, direction) => {
 3834                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 3835                    Some(Target::Pane(pane))
 3836                } else {
 3837                    match direction {
 3838                        SplitDirection::Up => None,
 3839                        SplitDirection::Down => try_dock(&self.bottom_dock),
 3840                        SplitDirection::Left => try_dock(&self.left_dock),
 3841                        SplitDirection::Right => try_dock(&self.right_dock),
 3842                    }
 3843                }
 3844            }
 3845
 3846            (Origin::LeftDock, SplitDirection::Right) => {
 3847                if let Some(last_active_pane) = get_last_active_pane() {
 3848                    Some(Target::Pane(last_active_pane))
 3849                } else {
 3850                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 3851                }
 3852            }
 3853
 3854            (Origin::LeftDock, SplitDirection::Down)
 3855            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 3856
 3857            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 3858            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 3859            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 3860
 3861            (Origin::RightDock, SplitDirection::Left) => {
 3862                if let Some(last_active_pane) = get_last_active_pane() {
 3863                    Some(Target::Pane(last_active_pane))
 3864                } else {
 3865                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 3866                }
 3867            }
 3868
 3869            _ => None,
 3870        };
 3871
 3872        match target {
 3873            Some(ActivateInDirectionTarget::Pane(pane)) => {
 3874                let pane = pane.read(cx);
 3875                if let Some(item) = pane.active_item() {
 3876                    item.item_focus_handle(cx).focus(window);
 3877                } else {
 3878                    log::error!(
 3879                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 3880                    );
 3881                }
 3882            }
 3883            Some(ActivateInDirectionTarget::Dock(dock)) => {
 3884                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 3885                window.defer(cx, move |window, cx| {
 3886                    let dock = dock.read(cx);
 3887                    if let Some(panel) = dock.active_panel() {
 3888                        panel.panel_focus_handle(cx).focus(window);
 3889                    } else {
 3890                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 3891                    }
 3892                })
 3893            }
 3894            None => {}
 3895        }
 3896    }
 3897
 3898    pub fn move_item_to_pane_in_direction(
 3899        &mut self,
 3900        action: &MoveItemToPaneInDirection,
 3901        window: &mut Window,
 3902        cx: &mut Context<Self>,
 3903    ) {
 3904        let destination = match self.find_pane_in_direction(action.direction, cx) {
 3905            Some(destination) => destination,
 3906            None => {
 3907                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3908                    return;
 3909                }
 3910                let new_pane = self.add_pane(window, cx);
 3911                if self
 3912                    .center
 3913                    .split(&self.active_pane, &new_pane, action.direction)
 3914                    .log_err()
 3915                    .is_none()
 3916                {
 3917                    return;
 3918                };
 3919                new_pane
 3920            }
 3921        };
 3922
 3923        if action.clone {
 3924            if self
 3925                .active_pane
 3926                .read(cx)
 3927                .active_item()
 3928                .is_some_and(|item| item.can_split(cx))
 3929            {
 3930                clone_active_item(
 3931                    self.database_id(),
 3932                    &self.active_pane,
 3933                    &destination,
 3934                    action.focus,
 3935                    window,
 3936                    cx,
 3937                );
 3938                return;
 3939            }
 3940        }
 3941        move_active_item(
 3942            &self.active_pane,
 3943            &destination,
 3944            action.focus,
 3945            true,
 3946            window,
 3947            cx,
 3948        );
 3949    }
 3950
 3951    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 3952        self.center.bounding_box_for_pane(pane)
 3953    }
 3954
 3955    pub fn find_pane_in_direction(
 3956        &mut self,
 3957        direction: SplitDirection,
 3958        cx: &App,
 3959    ) -> Option<Entity<Pane>> {
 3960        self.center
 3961            .find_pane_in_direction(&self.active_pane, direction, cx)
 3962            .cloned()
 3963    }
 3964
 3965    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 3966        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 3967            self.center.swap(&self.active_pane, &to);
 3968            cx.notify();
 3969        }
 3970    }
 3971
 3972    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 3973        if self
 3974            .center
 3975            .move_to_border(&self.active_pane, direction)
 3976            .unwrap()
 3977        {
 3978            cx.notify();
 3979        }
 3980    }
 3981
 3982    pub fn resize_pane(
 3983        &mut self,
 3984        axis: gpui::Axis,
 3985        amount: Pixels,
 3986        window: &mut Window,
 3987        cx: &mut Context<Self>,
 3988    ) {
 3989        let docks = self.all_docks();
 3990        let active_dock = docks
 3991            .into_iter()
 3992            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 3993
 3994        if let Some(dock) = active_dock {
 3995            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 3996                return;
 3997            };
 3998            match dock.read(cx).position() {
 3999                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4000                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4001                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4002            }
 4003        } else {
 4004            self.center
 4005                .resize(&self.active_pane, axis, amount, &self.bounds);
 4006        }
 4007        cx.notify();
 4008    }
 4009
 4010    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4011        self.center.reset_pane_sizes();
 4012        cx.notify();
 4013    }
 4014
 4015    fn handle_pane_focused(
 4016        &mut self,
 4017        pane: Entity<Pane>,
 4018        window: &mut Window,
 4019        cx: &mut Context<Self>,
 4020    ) {
 4021        // This is explicitly hoisted out of the following check for pane identity as
 4022        // terminal panel panes are not registered as a center panes.
 4023        self.status_bar.update(cx, |status_bar, cx| {
 4024            status_bar.set_active_pane(&pane, window, cx);
 4025        });
 4026        if self.active_pane != pane {
 4027            self.set_active_pane(&pane, window, cx);
 4028        }
 4029
 4030        if self.last_active_center_pane.is_none() {
 4031            self.last_active_center_pane = Some(pane.downgrade());
 4032        }
 4033
 4034        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 4035        if pane.read(cx).is_zoomed() {
 4036            self.zoomed = Some(pane.downgrade().into());
 4037        } else {
 4038            self.zoomed = None;
 4039        }
 4040        self.zoomed_position = None;
 4041        cx.emit(Event::ZoomChanged);
 4042        self.update_active_view_for_followers(window, cx);
 4043        pane.update(cx, |pane, _| {
 4044            pane.track_alternate_file_items();
 4045        });
 4046
 4047        cx.notify();
 4048    }
 4049
 4050    fn set_active_pane(
 4051        &mut self,
 4052        pane: &Entity<Pane>,
 4053        window: &mut Window,
 4054        cx: &mut Context<Self>,
 4055    ) {
 4056        self.active_pane = pane.clone();
 4057        self.active_item_path_changed(window, cx);
 4058        self.last_active_center_pane = Some(pane.downgrade());
 4059    }
 4060
 4061    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4062        self.update_active_view_for_followers(window, cx);
 4063    }
 4064
 4065    fn handle_pane_event(
 4066        &mut self,
 4067        pane: &Entity<Pane>,
 4068        event: &pane::Event,
 4069        window: &mut Window,
 4070        cx: &mut Context<Self>,
 4071    ) {
 4072        let mut serialize_workspace = true;
 4073        match event {
 4074            pane::Event::AddItem { item } => {
 4075                item.added_to_pane(self, pane.clone(), window, cx);
 4076                cx.emit(Event::ItemAdded {
 4077                    item: item.boxed_clone(),
 4078                });
 4079            }
 4080            pane::Event::Split {
 4081                direction,
 4082                clone_active_item,
 4083            } => {
 4084                if *clone_active_item {
 4085                    self.split_and_clone(pane.clone(), *direction, window, cx)
 4086                        .detach();
 4087                } else {
 4088                    self.split_and_move(pane.clone(), *direction, window, cx);
 4089                }
 4090            }
 4091            pane::Event::JoinIntoNext => {
 4092                self.join_pane_into_next(pane.clone(), window, cx);
 4093            }
 4094            pane::Event::JoinAll => {
 4095                self.join_all_panes(window, cx);
 4096            }
 4097            pane::Event::Remove { focus_on_pane } => {
 4098                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4099            }
 4100            pane::Event::ActivateItem {
 4101                local,
 4102                focus_changed,
 4103            } => {
 4104                window.invalidate_character_coordinates();
 4105
 4106                pane.update(cx, |pane, _| {
 4107                    pane.track_alternate_file_items();
 4108                });
 4109                if *local {
 4110                    self.unfollow_in_pane(pane, window, cx);
 4111                }
 4112                serialize_workspace = *focus_changed || pane != self.active_pane();
 4113                if pane == self.active_pane() {
 4114                    self.active_item_path_changed(window, cx);
 4115                    self.update_active_view_for_followers(window, cx);
 4116                } else if *local {
 4117                    self.set_active_pane(pane, window, cx);
 4118                }
 4119            }
 4120            pane::Event::UserSavedItem { item, save_intent } => {
 4121                cx.emit(Event::UserSavedItem {
 4122                    pane: pane.downgrade(),
 4123                    item: item.boxed_clone(),
 4124                    save_intent: *save_intent,
 4125                });
 4126                serialize_workspace = false;
 4127            }
 4128            pane::Event::ChangeItemTitle => {
 4129                if *pane == self.active_pane {
 4130                    self.active_item_path_changed(window, cx);
 4131                }
 4132                serialize_workspace = false;
 4133            }
 4134            pane::Event::RemovedItem { item } => {
 4135                cx.emit(Event::ActiveItemChanged);
 4136                self.update_window_edited(window, cx);
 4137                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4138                    && entry.get().entity_id() == pane.entity_id()
 4139                {
 4140                    entry.remove();
 4141                }
 4142                cx.emit(Event::ItemRemoved {
 4143                    item_id: item.item_id(),
 4144                });
 4145            }
 4146            pane::Event::Focus => {
 4147                window.invalidate_character_coordinates();
 4148                self.handle_pane_focused(pane.clone(), window, cx);
 4149            }
 4150            pane::Event::ZoomIn => {
 4151                if *pane == self.active_pane {
 4152                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4153                    if pane.read(cx).has_focus(window, cx) {
 4154                        self.zoomed = Some(pane.downgrade().into());
 4155                        self.zoomed_position = None;
 4156                        cx.emit(Event::ZoomChanged);
 4157                    }
 4158                    cx.notify();
 4159                }
 4160            }
 4161            pane::Event::ZoomOut => {
 4162                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4163                if self.zoomed_position.is_none() {
 4164                    self.zoomed = None;
 4165                    cx.emit(Event::ZoomChanged);
 4166                }
 4167                cx.notify();
 4168            }
 4169            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4170        }
 4171
 4172        if serialize_workspace {
 4173            self.serialize_workspace(window, cx);
 4174        }
 4175    }
 4176
 4177    pub fn unfollow_in_pane(
 4178        &mut self,
 4179        pane: &Entity<Pane>,
 4180        window: &mut Window,
 4181        cx: &mut Context<Workspace>,
 4182    ) -> Option<CollaboratorId> {
 4183        let leader_id = self.leader_for_pane(pane)?;
 4184        self.unfollow(leader_id, window, cx);
 4185        Some(leader_id)
 4186    }
 4187
 4188    pub fn split_pane(
 4189        &mut self,
 4190        pane_to_split: Entity<Pane>,
 4191        split_direction: SplitDirection,
 4192        window: &mut Window,
 4193        cx: &mut Context<Self>,
 4194    ) -> Entity<Pane> {
 4195        let new_pane = self.add_pane(window, cx);
 4196        self.center
 4197            .split(&pane_to_split, &new_pane, split_direction)
 4198            .unwrap();
 4199        cx.notify();
 4200        new_pane
 4201    }
 4202
 4203    pub fn split_and_move(
 4204        &mut self,
 4205        pane: Entity<Pane>,
 4206        direction: SplitDirection,
 4207        window: &mut Window,
 4208        cx: &mut Context<Self>,
 4209    ) {
 4210        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4211            return;
 4212        };
 4213        let new_pane = self.add_pane(window, cx);
 4214        new_pane.update(cx, |pane, cx| {
 4215            pane.add_item(item, true, true, None, window, cx)
 4216        });
 4217        self.center.split(&pane, &new_pane, direction).unwrap();
 4218        cx.notify();
 4219    }
 4220
 4221    pub fn split_and_clone(
 4222        &mut self,
 4223        pane: Entity<Pane>,
 4224        direction: SplitDirection,
 4225        window: &mut Window,
 4226        cx: &mut Context<Self>,
 4227    ) -> Task<Option<Entity<Pane>>> {
 4228        let Some(item) = pane.read(cx).active_item() else {
 4229            return Task::ready(None);
 4230        };
 4231        if !item.can_split(cx) {
 4232            return Task::ready(None);
 4233        }
 4234        let task = item.clone_on_split(self.database_id(), window, cx);
 4235        cx.spawn_in(window, async move |this, cx| {
 4236            if let Some(clone) = task.await {
 4237                this.update_in(cx, |this, window, cx| {
 4238                    let new_pane = this.add_pane(window, cx);
 4239                    new_pane.update(cx, |pane, cx| {
 4240                        pane.add_item(clone, true, true, None, window, cx)
 4241                    });
 4242                    this.center.split(&pane, &new_pane, direction).unwrap();
 4243                    cx.notify();
 4244                    new_pane
 4245                })
 4246                .ok()
 4247            } else {
 4248                None
 4249            }
 4250        })
 4251    }
 4252
 4253    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4254        let active_item = self.active_pane.read(cx).active_item();
 4255        for pane in &self.panes {
 4256            join_pane_into_active(&self.active_pane, pane, window, cx);
 4257        }
 4258        if let Some(active_item) = active_item {
 4259            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4260        }
 4261        cx.notify();
 4262    }
 4263
 4264    pub fn join_pane_into_next(
 4265        &mut self,
 4266        pane: Entity<Pane>,
 4267        window: &mut Window,
 4268        cx: &mut Context<Self>,
 4269    ) {
 4270        let next_pane = self
 4271            .find_pane_in_direction(SplitDirection::Right, cx)
 4272            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4273            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4274            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4275        let Some(next_pane) = next_pane else {
 4276            return;
 4277        };
 4278        move_all_items(&pane, &next_pane, window, cx);
 4279        cx.notify();
 4280    }
 4281
 4282    fn remove_pane(
 4283        &mut self,
 4284        pane: Entity<Pane>,
 4285        focus_on: Option<Entity<Pane>>,
 4286        window: &mut Window,
 4287        cx: &mut Context<Self>,
 4288    ) {
 4289        if self.center.remove(&pane).unwrap() {
 4290            self.force_remove_pane(&pane, &focus_on, window, cx);
 4291            self.unfollow_in_pane(&pane, window, cx);
 4292            self.last_leaders_by_pane.remove(&pane.downgrade());
 4293            for removed_item in pane.read(cx).items() {
 4294                self.panes_by_item.remove(&removed_item.item_id());
 4295            }
 4296
 4297            cx.notify();
 4298        } else {
 4299            self.active_item_path_changed(window, cx);
 4300        }
 4301        cx.emit(Event::PaneRemoved);
 4302    }
 4303
 4304    pub fn panes(&self) -> &[Entity<Pane>] {
 4305        &self.panes
 4306    }
 4307
 4308    pub fn active_pane(&self) -> &Entity<Pane> {
 4309        &self.active_pane
 4310    }
 4311
 4312    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4313        for dock in self.all_docks() {
 4314            if dock.focus_handle(cx).contains_focused(window, cx)
 4315                && let Some(pane) = dock
 4316                    .read(cx)
 4317                    .active_panel()
 4318                    .and_then(|panel| panel.pane(cx))
 4319            {
 4320                return pane;
 4321            }
 4322        }
 4323        self.active_pane().clone()
 4324    }
 4325
 4326    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4327        self.find_pane_in_direction(SplitDirection::Right, cx)
 4328            .unwrap_or_else(|| {
 4329                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4330            })
 4331    }
 4332
 4333    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4334        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4335        weak_pane.upgrade()
 4336    }
 4337
 4338    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4339        self.follower_states.retain(|leader_id, state| {
 4340            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4341                for item in state.items_by_leader_view_id.values() {
 4342                    item.view.set_leader_id(None, window, cx);
 4343                }
 4344                false
 4345            } else {
 4346                true
 4347            }
 4348        });
 4349        cx.notify();
 4350    }
 4351
 4352    pub fn start_following(
 4353        &mut self,
 4354        leader_id: impl Into<CollaboratorId>,
 4355        window: &mut Window,
 4356        cx: &mut Context<Self>,
 4357    ) -> Option<Task<Result<()>>> {
 4358        let leader_id = leader_id.into();
 4359        let pane = self.active_pane().clone();
 4360
 4361        self.last_leaders_by_pane
 4362            .insert(pane.downgrade(), leader_id);
 4363        self.unfollow(leader_id, window, cx);
 4364        self.unfollow_in_pane(&pane, window, cx);
 4365        self.follower_states.insert(
 4366            leader_id,
 4367            FollowerState {
 4368                center_pane: pane.clone(),
 4369                dock_pane: None,
 4370                active_view_id: None,
 4371                items_by_leader_view_id: Default::default(),
 4372            },
 4373        );
 4374        cx.notify();
 4375
 4376        match leader_id {
 4377            CollaboratorId::PeerId(leader_peer_id) => {
 4378                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4379                let project_id = self.project.read(cx).remote_id();
 4380                let request = self.app_state.client.request(proto::Follow {
 4381                    room_id,
 4382                    project_id,
 4383                    leader_id: Some(leader_peer_id),
 4384                });
 4385
 4386                Some(cx.spawn_in(window, async move |this, cx| {
 4387                    let response = request.await?;
 4388                    this.update(cx, |this, _| {
 4389                        let state = this
 4390                            .follower_states
 4391                            .get_mut(&leader_id)
 4392                            .context("following interrupted")?;
 4393                        state.active_view_id = response
 4394                            .active_view
 4395                            .as_ref()
 4396                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4397                        anyhow::Ok(())
 4398                    })??;
 4399                    if let Some(view) = response.active_view {
 4400                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4401                    }
 4402                    this.update_in(cx, |this, window, cx| {
 4403                        this.leader_updated(leader_id, window, cx)
 4404                    })?;
 4405                    Ok(())
 4406                }))
 4407            }
 4408            CollaboratorId::Agent => {
 4409                self.leader_updated(leader_id, window, cx)?;
 4410                Some(Task::ready(Ok(())))
 4411            }
 4412        }
 4413    }
 4414
 4415    pub fn follow_next_collaborator(
 4416        &mut self,
 4417        _: &FollowNextCollaborator,
 4418        window: &mut Window,
 4419        cx: &mut Context<Self>,
 4420    ) {
 4421        let collaborators = self.project.read(cx).collaborators();
 4422        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4423            let mut collaborators = collaborators.keys().copied();
 4424            for peer_id in collaborators.by_ref() {
 4425                if CollaboratorId::PeerId(peer_id) == leader_id {
 4426                    break;
 4427                }
 4428            }
 4429            collaborators.next().map(CollaboratorId::PeerId)
 4430        } else if let Some(last_leader_id) =
 4431            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4432        {
 4433            match last_leader_id {
 4434                CollaboratorId::PeerId(peer_id) => {
 4435                    if collaborators.contains_key(peer_id) {
 4436                        Some(*last_leader_id)
 4437                    } else {
 4438                        None
 4439                    }
 4440                }
 4441                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4442            }
 4443        } else {
 4444            None
 4445        };
 4446
 4447        let pane = self.active_pane.clone();
 4448        let Some(leader_id) = next_leader_id.or_else(|| {
 4449            Some(CollaboratorId::PeerId(
 4450                collaborators.keys().copied().next()?,
 4451            ))
 4452        }) else {
 4453            return;
 4454        };
 4455        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4456            return;
 4457        }
 4458        if let Some(task) = self.start_following(leader_id, window, cx) {
 4459            task.detach_and_log_err(cx)
 4460        }
 4461    }
 4462
 4463    pub fn follow(
 4464        &mut self,
 4465        leader_id: impl Into<CollaboratorId>,
 4466        window: &mut Window,
 4467        cx: &mut Context<Self>,
 4468    ) {
 4469        let leader_id = leader_id.into();
 4470
 4471        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4472            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4473                return;
 4474            };
 4475            let room = room.read(cx);
 4476            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4477                return;
 4478            };
 4479
 4480            let project = self.project.read(cx);
 4481
 4482            let other_project_id = match remote_participant.location {
 4483                call::ParticipantLocation::External => None,
 4484                call::ParticipantLocation::UnsharedProject => None,
 4485                call::ParticipantLocation::SharedProject { project_id } => {
 4486                    if Some(project_id) == project.remote_id() {
 4487                        None
 4488                    } else {
 4489                        Some(project_id)
 4490                    }
 4491                }
 4492            };
 4493
 4494            // if they are active in another project, follow there.
 4495            if let Some(project_id) = other_project_id {
 4496                let app_state = self.app_state.clone();
 4497                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4498                    .detach_and_log_err(cx);
 4499            }
 4500        }
 4501
 4502        // if you're already following, find the right pane and focus it.
 4503        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4504            window.focus(&follower_state.pane().focus_handle(cx));
 4505
 4506            return;
 4507        }
 4508
 4509        // Otherwise, follow.
 4510        if let Some(task) = self.start_following(leader_id, window, cx) {
 4511            task.detach_and_log_err(cx)
 4512        }
 4513    }
 4514
 4515    pub fn unfollow(
 4516        &mut self,
 4517        leader_id: impl Into<CollaboratorId>,
 4518        window: &mut Window,
 4519        cx: &mut Context<Self>,
 4520    ) -> Option<()> {
 4521        cx.notify();
 4522
 4523        let leader_id = leader_id.into();
 4524        let state = self.follower_states.remove(&leader_id)?;
 4525        for (_, item) in state.items_by_leader_view_id {
 4526            item.view.set_leader_id(None, window, cx);
 4527        }
 4528
 4529        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4530            let project_id = self.project.read(cx).remote_id();
 4531            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4532            self.app_state
 4533                .client
 4534                .send(proto::Unfollow {
 4535                    room_id,
 4536                    project_id,
 4537                    leader_id: Some(leader_peer_id),
 4538                })
 4539                .log_err();
 4540        }
 4541
 4542        Some(())
 4543    }
 4544
 4545    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4546        self.follower_states.contains_key(&id.into())
 4547    }
 4548
 4549    fn active_item_path_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4550        cx.emit(Event::ActiveItemChanged);
 4551        let active_entry = self.active_project_path(cx);
 4552        self.project.update(cx, |project, cx| {
 4553            project.set_active_path(active_entry.clone(), cx)
 4554        });
 4555
 4556        if let Some(project_path) = &active_entry {
 4557            let git_store_entity = self.project.read(cx).git_store().clone();
 4558            git_store_entity.update(cx, |git_store, cx| {
 4559                git_store.set_active_repo_for_path(project_path, cx);
 4560            });
 4561        }
 4562
 4563        self.update_window_title(window, cx);
 4564    }
 4565
 4566    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4567        let project = self.project().read(cx);
 4568        let mut title = String::new();
 4569
 4570        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4571            let name = {
 4572                let settings_location = SettingsLocation {
 4573                    worktree_id: worktree.read(cx).id(),
 4574                    path: RelPath::empty(),
 4575                };
 4576
 4577                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4578                match &settings.project_name {
 4579                    Some(name) => name.as_str(),
 4580                    None => worktree.read(cx).root_name_str(),
 4581                }
 4582            };
 4583            if i > 0 {
 4584                title.push_str(", ");
 4585            }
 4586            title.push_str(name);
 4587        }
 4588
 4589        if title.is_empty() {
 4590            title = "empty project".to_string();
 4591        }
 4592
 4593        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4594            let filename = path.path.file_name().or_else(|| {
 4595                Some(
 4596                    project
 4597                        .worktree_for_id(path.worktree_id, cx)?
 4598                        .read(cx)
 4599                        .root_name_str(),
 4600                )
 4601            });
 4602
 4603            if let Some(filename) = filename {
 4604                title.push_str("");
 4605                title.push_str(filename.as_ref());
 4606            }
 4607        }
 4608
 4609        if project.is_via_collab() {
 4610            title.push_str("");
 4611        } else if project.is_shared() {
 4612            title.push_str("");
 4613        }
 4614
 4615        if let Some(last_title) = self.last_window_title.as_ref()
 4616            && &title == last_title
 4617        {
 4618            return;
 4619        }
 4620        window.set_window_title(&title);
 4621        SystemWindowTabController::update_tab_title(
 4622            cx,
 4623            window.window_handle().window_id(),
 4624            SharedString::from(&title),
 4625        );
 4626        self.last_window_title = Some(title);
 4627    }
 4628
 4629    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4630        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4631        if is_edited != self.window_edited {
 4632            self.window_edited = is_edited;
 4633            window.set_window_edited(self.window_edited)
 4634        }
 4635    }
 4636
 4637    fn update_item_dirty_state(
 4638        &mut self,
 4639        item: &dyn ItemHandle,
 4640        window: &mut Window,
 4641        cx: &mut App,
 4642    ) {
 4643        let is_dirty = item.is_dirty(cx);
 4644        let item_id = item.item_id();
 4645        let was_dirty = self.dirty_items.contains_key(&item_id);
 4646        if is_dirty == was_dirty {
 4647            return;
 4648        }
 4649        if was_dirty {
 4650            self.dirty_items.remove(&item_id);
 4651            self.update_window_edited(window, cx);
 4652            return;
 4653        }
 4654        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4655            let s = item.on_release(
 4656                cx,
 4657                Box::new(move |cx| {
 4658                    window_handle
 4659                        .update(cx, |this, window, cx| {
 4660                            this.dirty_items.remove(&item_id);
 4661                            this.update_window_edited(window, cx)
 4662                        })
 4663                        .ok();
 4664                }),
 4665            );
 4666            self.dirty_items.insert(item_id, s);
 4667            self.update_window_edited(window, cx);
 4668        }
 4669    }
 4670
 4671    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4672        if self.notifications.is_empty() {
 4673            None
 4674        } else {
 4675            Some(
 4676                div()
 4677                    .absolute()
 4678                    .right_3()
 4679                    .bottom_3()
 4680                    .w_112()
 4681                    .h_full()
 4682                    .flex()
 4683                    .flex_col()
 4684                    .justify_end()
 4685                    .gap_2()
 4686                    .children(
 4687                        self.notifications
 4688                            .iter()
 4689                            .map(|(_, notification)| notification.clone().into_any()),
 4690                    ),
 4691            )
 4692        }
 4693    }
 4694
 4695    // RPC handlers
 4696
 4697    fn active_view_for_follower(
 4698        &self,
 4699        follower_project_id: Option<u64>,
 4700        window: &mut Window,
 4701        cx: &mut Context<Self>,
 4702    ) -> Option<proto::View> {
 4703        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4704        let item = item?;
 4705        let leader_id = self
 4706            .pane_for(&*item)
 4707            .and_then(|pane| self.leader_for_pane(&pane));
 4708        let leader_peer_id = match leader_id {
 4709            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4710            Some(CollaboratorId::Agent) | None => None,
 4711        };
 4712
 4713        let item_handle = item.to_followable_item_handle(cx)?;
 4714        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4715        let variant = item_handle.to_state_proto(window, cx)?;
 4716
 4717        if item_handle.is_project_item(window, cx)
 4718            && (follower_project_id.is_none()
 4719                || follower_project_id != self.project.read(cx).remote_id())
 4720        {
 4721            return None;
 4722        }
 4723
 4724        Some(proto::View {
 4725            id: id.to_proto(),
 4726            leader_id: leader_peer_id,
 4727            variant: Some(variant),
 4728            panel_id: panel_id.map(|id| id as i32),
 4729        })
 4730    }
 4731
 4732    fn handle_follow(
 4733        &mut self,
 4734        follower_project_id: Option<u64>,
 4735        window: &mut Window,
 4736        cx: &mut Context<Self>,
 4737    ) -> proto::FollowResponse {
 4738        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4739
 4740        cx.notify();
 4741        proto::FollowResponse {
 4742            // TODO: Remove after version 0.145.x stabilizes.
 4743            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4744            views: active_view.iter().cloned().collect(),
 4745            active_view,
 4746        }
 4747    }
 4748
 4749    fn handle_update_followers(
 4750        &mut self,
 4751        leader_id: PeerId,
 4752        message: proto::UpdateFollowers,
 4753        _window: &mut Window,
 4754        _cx: &mut Context<Self>,
 4755    ) {
 4756        self.leader_updates_tx
 4757            .unbounded_send((leader_id, message))
 4758            .ok();
 4759    }
 4760
 4761    async fn process_leader_update(
 4762        this: &WeakEntity<Self>,
 4763        leader_id: PeerId,
 4764        update: proto::UpdateFollowers,
 4765        cx: &mut AsyncWindowContext,
 4766    ) -> Result<()> {
 4767        match update.variant.context("invalid update")? {
 4768            proto::update_followers::Variant::CreateView(view) => {
 4769                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4770                let should_add_view = this.update(cx, |this, _| {
 4771                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4772                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4773                    } else {
 4774                        anyhow::Ok(false)
 4775                    }
 4776                })??;
 4777
 4778                if should_add_view {
 4779                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4780                }
 4781            }
 4782            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4783                let should_add_view = this.update(cx, |this, _| {
 4784                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4785                        state.active_view_id = update_active_view
 4786                            .view
 4787                            .as_ref()
 4788                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4789
 4790                        if state.active_view_id.is_some_and(|view_id| {
 4791                            !state.items_by_leader_view_id.contains_key(&view_id)
 4792                        }) {
 4793                            anyhow::Ok(true)
 4794                        } else {
 4795                            anyhow::Ok(false)
 4796                        }
 4797                    } else {
 4798                        anyhow::Ok(false)
 4799                    }
 4800                })??;
 4801
 4802                if should_add_view && let Some(view) = update_active_view.view {
 4803                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4804                }
 4805            }
 4806            proto::update_followers::Variant::UpdateView(update_view) => {
 4807                let variant = update_view.variant.context("missing update view variant")?;
 4808                let id = update_view.id.context("missing update view id")?;
 4809                let mut tasks = Vec::new();
 4810                this.update_in(cx, |this, window, cx| {
 4811                    let project = this.project.clone();
 4812                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4813                        let view_id = ViewId::from_proto(id.clone())?;
 4814                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4815                            tasks.push(item.view.apply_update_proto(
 4816                                &project,
 4817                                variant.clone(),
 4818                                window,
 4819                                cx,
 4820                            ));
 4821                        }
 4822                    }
 4823                    anyhow::Ok(())
 4824                })??;
 4825                try_join_all(tasks).await.log_err();
 4826            }
 4827        }
 4828        this.update_in(cx, |this, window, cx| {
 4829            this.leader_updated(leader_id, window, cx)
 4830        })?;
 4831        Ok(())
 4832    }
 4833
 4834    async fn add_view_from_leader(
 4835        this: WeakEntity<Self>,
 4836        leader_id: PeerId,
 4837        view: &proto::View,
 4838        cx: &mut AsyncWindowContext,
 4839    ) -> Result<()> {
 4840        let this = this.upgrade().context("workspace dropped")?;
 4841
 4842        let Some(id) = view.id.clone() else {
 4843            anyhow::bail!("no id for view");
 4844        };
 4845        let id = ViewId::from_proto(id)?;
 4846        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 4847
 4848        let pane = this.update(cx, |this, _cx| {
 4849            let state = this
 4850                .follower_states
 4851                .get(&leader_id.into())
 4852                .context("stopped following")?;
 4853            anyhow::Ok(state.pane().clone())
 4854        })??;
 4855        let existing_item = pane.update_in(cx, |pane, window, cx| {
 4856            let client = this.read(cx).client().clone();
 4857            pane.items().find_map(|item| {
 4858                let item = item.to_followable_item_handle(cx)?;
 4859                if item.remote_id(&client, window, cx) == Some(id) {
 4860                    Some(item)
 4861                } else {
 4862                    None
 4863                }
 4864            })
 4865        })?;
 4866        let item = if let Some(existing_item) = existing_item {
 4867            existing_item
 4868        } else {
 4869            let variant = view.variant.clone();
 4870            anyhow::ensure!(variant.is_some(), "missing view variant");
 4871
 4872            let task = cx.update(|window, cx| {
 4873                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 4874            })?;
 4875
 4876            let Some(task) = task else {
 4877                anyhow::bail!(
 4878                    "failed to construct view from leader (maybe from a different version of zed?)"
 4879                );
 4880            };
 4881
 4882            let mut new_item = task.await?;
 4883            pane.update_in(cx, |pane, window, cx| {
 4884                let mut item_to_remove = None;
 4885                for (ix, item) in pane.items().enumerate() {
 4886                    if let Some(item) = item.to_followable_item_handle(cx) {
 4887                        match new_item.dedup(item.as_ref(), window, cx) {
 4888                            Some(item::Dedup::KeepExisting) => {
 4889                                new_item =
 4890                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 4891                                break;
 4892                            }
 4893                            Some(item::Dedup::ReplaceExisting) => {
 4894                                item_to_remove = Some((ix, item.item_id()));
 4895                                break;
 4896                            }
 4897                            None => {}
 4898                        }
 4899                    }
 4900                }
 4901
 4902                if let Some((ix, id)) = item_to_remove {
 4903                    pane.remove_item(id, false, false, window, cx);
 4904                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 4905                }
 4906            })?;
 4907
 4908            new_item
 4909        };
 4910
 4911        this.update_in(cx, |this, window, cx| {
 4912            let state = this.follower_states.get_mut(&leader_id.into())?;
 4913            item.set_leader_id(Some(leader_id.into()), window, cx);
 4914            state.items_by_leader_view_id.insert(
 4915                id,
 4916                FollowerView {
 4917                    view: item,
 4918                    location: panel_id,
 4919                },
 4920            );
 4921
 4922            Some(())
 4923        })?;
 4924
 4925        Ok(())
 4926    }
 4927
 4928    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4929        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 4930            return;
 4931        };
 4932
 4933        if let Some(agent_location) = self.project.read(cx).agent_location() {
 4934            let buffer_entity_id = agent_location.buffer.entity_id();
 4935            let view_id = ViewId {
 4936                creator: CollaboratorId::Agent,
 4937                id: buffer_entity_id.as_u64(),
 4938            };
 4939            follower_state.active_view_id = Some(view_id);
 4940
 4941            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 4942                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 4943                hash_map::Entry::Vacant(entry) => {
 4944                    let existing_view =
 4945                        follower_state
 4946                            .center_pane
 4947                            .read(cx)
 4948                            .items()
 4949                            .find_map(|item| {
 4950                                let item = item.to_followable_item_handle(cx)?;
 4951                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 4952                                    && item.project_item_model_ids(cx).as_slice()
 4953                                        == [buffer_entity_id]
 4954                                {
 4955                                    Some(item)
 4956                                } else {
 4957                                    None
 4958                                }
 4959                            });
 4960                    let view = existing_view.or_else(|| {
 4961                        agent_location.buffer.upgrade().and_then(|buffer| {
 4962                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 4963                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 4964                            })?
 4965                            .to_followable_item_handle(cx)
 4966                        })
 4967                    });
 4968
 4969                    view.map(|view| {
 4970                        entry.insert(FollowerView {
 4971                            view,
 4972                            location: None,
 4973                        })
 4974                    })
 4975                }
 4976            };
 4977
 4978            if let Some(item) = item {
 4979                item.view
 4980                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 4981                item.view
 4982                    .update_agent_location(agent_location.position, window, cx);
 4983            }
 4984        } else {
 4985            follower_state.active_view_id = None;
 4986        }
 4987
 4988        self.leader_updated(CollaboratorId::Agent, window, cx);
 4989    }
 4990
 4991    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 4992        let mut is_project_item = true;
 4993        let mut update = proto::UpdateActiveView::default();
 4994        if window.is_window_active() {
 4995            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 4996
 4997            if let Some(item) = active_item
 4998                && item.item_focus_handle(cx).contains_focused(window, cx)
 4999            {
 5000                let leader_id = self
 5001                    .pane_for(&*item)
 5002                    .and_then(|pane| self.leader_for_pane(&pane));
 5003                let leader_peer_id = match leader_id {
 5004                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5005                    Some(CollaboratorId::Agent) | None => None,
 5006                };
 5007
 5008                if let Some(item) = item.to_followable_item_handle(cx) {
 5009                    let id = item
 5010                        .remote_id(&self.app_state.client, window, cx)
 5011                        .map(|id| id.to_proto());
 5012
 5013                    if let Some(id) = id
 5014                        && let Some(variant) = item.to_state_proto(window, cx)
 5015                    {
 5016                        let view = Some(proto::View {
 5017                            id: id.clone(),
 5018                            leader_id: leader_peer_id,
 5019                            variant: Some(variant),
 5020                            panel_id: panel_id.map(|id| id as i32),
 5021                        });
 5022
 5023                        is_project_item = item.is_project_item(window, cx);
 5024                        update = proto::UpdateActiveView {
 5025                            view,
 5026                            // TODO: Remove after version 0.145.x stabilizes.
 5027                            id,
 5028                            leader_id: leader_peer_id,
 5029                        };
 5030                    };
 5031                }
 5032            }
 5033        }
 5034
 5035        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5036        if active_view_id != self.last_active_view_id.as_ref() {
 5037            self.last_active_view_id = active_view_id.cloned();
 5038            self.update_followers(
 5039                is_project_item,
 5040                proto::update_followers::Variant::UpdateActiveView(update),
 5041                window,
 5042                cx,
 5043            );
 5044        }
 5045    }
 5046
 5047    fn active_item_for_followers(
 5048        &self,
 5049        window: &mut Window,
 5050        cx: &mut App,
 5051    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5052        let mut active_item = None;
 5053        let mut panel_id = None;
 5054        for dock in self.all_docks() {
 5055            if dock.focus_handle(cx).contains_focused(window, cx)
 5056                && let Some(panel) = dock.read(cx).active_panel()
 5057                && let Some(pane) = panel.pane(cx)
 5058                && let Some(item) = pane.read(cx).active_item()
 5059            {
 5060                active_item = Some(item);
 5061                panel_id = panel.remote_id();
 5062                break;
 5063            }
 5064        }
 5065
 5066        if active_item.is_none() {
 5067            active_item = self.active_pane().read(cx).active_item();
 5068        }
 5069        (active_item, panel_id)
 5070    }
 5071
 5072    fn update_followers(
 5073        &self,
 5074        project_only: bool,
 5075        update: proto::update_followers::Variant,
 5076        _: &mut Window,
 5077        cx: &mut App,
 5078    ) -> Option<()> {
 5079        // If this update only applies to for followers in the current project,
 5080        // then skip it unless this project is shared. If it applies to all
 5081        // followers, regardless of project, then set `project_id` to none,
 5082        // indicating that it goes to all followers.
 5083        let project_id = if project_only {
 5084            Some(self.project.read(cx).remote_id()?)
 5085        } else {
 5086            None
 5087        };
 5088        self.app_state().workspace_store.update(cx, |store, cx| {
 5089            store.update_followers(project_id, update, cx)
 5090        })
 5091    }
 5092
 5093    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5094        self.follower_states.iter().find_map(|(leader_id, state)| {
 5095            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5096                Some(*leader_id)
 5097            } else {
 5098                None
 5099            }
 5100        })
 5101    }
 5102
 5103    fn leader_updated(
 5104        &mut self,
 5105        leader_id: impl Into<CollaboratorId>,
 5106        window: &mut Window,
 5107        cx: &mut Context<Self>,
 5108    ) -> Option<Box<dyn ItemHandle>> {
 5109        cx.notify();
 5110
 5111        let leader_id = leader_id.into();
 5112        let (panel_id, item) = match leader_id {
 5113            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5114            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5115        };
 5116
 5117        let state = self.follower_states.get(&leader_id)?;
 5118        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5119        let pane;
 5120        if let Some(panel_id) = panel_id {
 5121            pane = self
 5122                .activate_panel_for_proto_id(panel_id, window, cx)?
 5123                .pane(cx)?;
 5124            let state = self.follower_states.get_mut(&leader_id)?;
 5125            state.dock_pane = Some(pane.clone());
 5126        } else {
 5127            pane = state.center_pane.clone();
 5128            let state = self.follower_states.get_mut(&leader_id)?;
 5129            if let Some(dock_pane) = state.dock_pane.take() {
 5130                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5131            }
 5132        }
 5133
 5134        pane.update(cx, |pane, cx| {
 5135            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5136            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5137                pane.activate_item(index, false, false, window, cx);
 5138            } else {
 5139                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5140            }
 5141
 5142            if focus_active_item {
 5143                pane.focus_active_item(window, cx)
 5144            }
 5145        });
 5146
 5147        Some(item)
 5148    }
 5149
 5150    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5151        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5152        let active_view_id = state.active_view_id?;
 5153        Some(
 5154            state
 5155                .items_by_leader_view_id
 5156                .get(&active_view_id)?
 5157                .view
 5158                .boxed_clone(),
 5159        )
 5160    }
 5161
 5162    fn active_item_for_peer(
 5163        &self,
 5164        peer_id: PeerId,
 5165        window: &mut Window,
 5166        cx: &mut Context<Self>,
 5167    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5168        let call = self.active_call()?;
 5169        let room = call.read(cx).room()?.read(cx);
 5170        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5171        let leader_in_this_app;
 5172        let leader_in_this_project;
 5173        match participant.location {
 5174            call::ParticipantLocation::SharedProject { project_id } => {
 5175                leader_in_this_app = true;
 5176                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5177            }
 5178            call::ParticipantLocation::UnsharedProject => {
 5179                leader_in_this_app = true;
 5180                leader_in_this_project = false;
 5181            }
 5182            call::ParticipantLocation::External => {
 5183                leader_in_this_app = false;
 5184                leader_in_this_project = false;
 5185            }
 5186        };
 5187        let state = self.follower_states.get(&peer_id.into())?;
 5188        let mut item_to_activate = None;
 5189        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5190            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5191                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5192            {
 5193                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5194            }
 5195        } else if let Some(shared_screen) =
 5196            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5197        {
 5198            item_to_activate = Some((None, Box::new(shared_screen)));
 5199        }
 5200        item_to_activate
 5201    }
 5202
 5203    fn shared_screen_for_peer(
 5204        &self,
 5205        peer_id: PeerId,
 5206        pane: &Entity<Pane>,
 5207        window: &mut Window,
 5208        cx: &mut App,
 5209    ) -> Option<Entity<SharedScreen>> {
 5210        let call = self.active_call()?;
 5211        let room = call.read(cx).room()?.clone();
 5212        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5213        let track = participant.video_tracks.values().next()?.clone();
 5214        let user = participant.user.clone();
 5215
 5216        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5217            if item.read(cx).peer_id == peer_id {
 5218                return Some(item);
 5219            }
 5220        }
 5221
 5222        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5223    }
 5224
 5225    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5226        if window.is_window_active() {
 5227            self.update_active_view_for_followers(window, cx);
 5228
 5229            if let Some(database_id) = self.database_id {
 5230                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5231                    .detach();
 5232            }
 5233        } else {
 5234            for pane in &self.panes {
 5235                pane.update(cx, |pane, cx| {
 5236                    if let Some(item) = pane.active_item() {
 5237                        item.workspace_deactivated(window, cx);
 5238                    }
 5239                    for item in pane.items() {
 5240                        if matches!(
 5241                            item.workspace_settings(cx).autosave,
 5242                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5243                        ) {
 5244                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5245                                .detach_and_log_err(cx);
 5246                        }
 5247                    }
 5248                });
 5249            }
 5250        }
 5251    }
 5252
 5253    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5254        self.active_call.as_ref().map(|(call, _)| call)
 5255    }
 5256
 5257    fn on_active_call_event(
 5258        &mut self,
 5259        _: &Entity<ActiveCall>,
 5260        event: &call::room::Event,
 5261        window: &mut Window,
 5262        cx: &mut Context<Self>,
 5263    ) {
 5264        match event {
 5265            call::room::Event::ParticipantLocationChanged { participant_id }
 5266            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5267                self.leader_updated(participant_id, window, cx);
 5268            }
 5269            _ => {}
 5270        }
 5271    }
 5272
 5273    pub fn database_id(&self) -> Option<WorkspaceId> {
 5274        self.database_id
 5275    }
 5276
 5277    pub fn session_id(&self) -> Option<String> {
 5278        self.session_id.clone()
 5279    }
 5280
 5281    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5282        let project = self.project().read(cx);
 5283        project
 5284            .visible_worktrees(cx)
 5285            .map(|worktree| worktree.read(cx).abs_path())
 5286            .collect::<Vec<_>>()
 5287    }
 5288
 5289    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5290        match member {
 5291            Member::Axis(PaneAxis { members, .. }) => {
 5292                for child in members.iter() {
 5293                    self.remove_panes(child.clone(), window, cx)
 5294                }
 5295            }
 5296            Member::Pane(pane) => {
 5297                self.force_remove_pane(&pane, &None, window, cx);
 5298            }
 5299        }
 5300    }
 5301
 5302    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5303        self.session_id.take();
 5304        self.serialize_workspace_internal(window, cx)
 5305    }
 5306
 5307    fn force_remove_pane(
 5308        &mut self,
 5309        pane: &Entity<Pane>,
 5310        focus_on: &Option<Entity<Pane>>,
 5311        window: &mut Window,
 5312        cx: &mut Context<Workspace>,
 5313    ) {
 5314        self.panes.retain(|p| p != pane);
 5315        if let Some(focus_on) = focus_on {
 5316            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5317        } else if self.active_pane() == pane {
 5318            self.panes
 5319                .last()
 5320                .unwrap()
 5321                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5322        }
 5323        if self.last_active_center_pane == Some(pane.downgrade()) {
 5324            self.last_active_center_pane = None;
 5325        }
 5326        cx.notify();
 5327    }
 5328
 5329    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5330        if self._schedule_serialize_workspace.is_none() {
 5331            self._schedule_serialize_workspace =
 5332                Some(cx.spawn_in(window, async move |this, cx| {
 5333                    cx.background_executor()
 5334                        .timer(SERIALIZATION_THROTTLE_TIME)
 5335                        .await;
 5336                    this.update_in(cx, |this, window, cx| {
 5337                        this.serialize_workspace_internal(window, cx).detach();
 5338                        this._schedule_serialize_workspace.take();
 5339                    })
 5340                    .log_err();
 5341                }));
 5342        }
 5343    }
 5344
 5345    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5346        let Some(database_id) = self.database_id() else {
 5347            return Task::ready(());
 5348        };
 5349
 5350        fn serialize_pane_handle(
 5351            pane_handle: &Entity<Pane>,
 5352            window: &mut Window,
 5353            cx: &mut App,
 5354        ) -> SerializedPane {
 5355            let (items, active, pinned_count) = {
 5356                let pane = pane_handle.read(cx);
 5357                let active_item_id = pane.active_item().map(|item| item.item_id());
 5358                (
 5359                    pane.items()
 5360                        .filter_map(|handle| {
 5361                            let handle = handle.to_serializable_item_handle(cx)?;
 5362
 5363                            Some(SerializedItem {
 5364                                kind: Arc::from(handle.serialized_item_kind()),
 5365                                item_id: handle.item_id().as_u64(),
 5366                                active: Some(handle.item_id()) == active_item_id,
 5367                                preview: pane.is_active_preview_item(handle.item_id()),
 5368                            })
 5369                        })
 5370                        .collect::<Vec<_>>(),
 5371                    pane.has_focus(window, cx),
 5372                    pane.pinned_count(),
 5373                )
 5374            };
 5375
 5376            SerializedPane::new(items, active, pinned_count)
 5377        }
 5378
 5379        fn build_serialized_pane_group(
 5380            pane_group: &Member,
 5381            window: &mut Window,
 5382            cx: &mut App,
 5383        ) -> SerializedPaneGroup {
 5384            match pane_group {
 5385                Member::Axis(PaneAxis {
 5386                    axis,
 5387                    members,
 5388                    flexes,
 5389                    bounding_boxes: _,
 5390                }) => SerializedPaneGroup::Group {
 5391                    axis: SerializedAxis(*axis),
 5392                    children: members
 5393                        .iter()
 5394                        .map(|member| build_serialized_pane_group(member, window, cx))
 5395                        .collect::<Vec<_>>(),
 5396                    flexes: Some(flexes.lock().clone()),
 5397                },
 5398                Member::Pane(pane_handle) => {
 5399                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5400                }
 5401            }
 5402        }
 5403
 5404        fn build_serialized_docks(
 5405            this: &Workspace,
 5406            window: &mut Window,
 5407            cx: &mut App,
 5408        ) -> DockStructure {
 5409            let left_dock = this.left_dock.read(cx);
 5410            let left_visible = left_dock.is_open();
 5411            let left_active_panel = left_dock
 5412                .active_panel()
 5413                .map(|panel| panel.persistent_name().to_string());
 5414            let left_dock_zoom = left_dock
 5415                .active_panel()
 5416                .map(|panel| panel.is_zoomed(window, cx))
 5417                .unwrap_or(false);
 5418
 5419            let right_dock = this.right_dock.read(cx);
 5420            let right_visible = right_dock.is_open();
 5421            let right_active_panel = right_dock
 5422                .active_panel()
 5423                .map(|panel| panel.persistent_name().to_string());
 5424            let right_dock_zoom = right_dock
 5425                .active_panel()
 5426                .map(|panel| panel.is_zoomed(window, cx))
 5427                .unwrap_or(false);
 5428
 5429            let bottom_dock = this.bottom_dock.read(cx);
 5430            let bottom_visible = bottom_dock.is_open();
 5431            let bottom_active_panel = bottom_dock
 5432                .active_panel()
 5433                .map(|panel| panel.persistent_name().to_string());
 5434            let bottom_dock_zoom = bottom_dock
 5435                .active_panel()
 5436                .map(|panel| panel.is_zoomed(window, cx))
 5437                .unwrap_or(false);
 5438
 5439            DockStructure {
 5440                left: DockData {
 5441                    visible: left_visible,
 5442                    active_panel: left_active_panel,
 5443                    zoom: left_dock_zoom,
 5444                },
 5445                right: DockData {
 5446                    visible: right_visible,
 5447                    active_panel: right_active_panel,
 5448                    zoom: right_dock_zoom,
 5449                },
 5450                bottom: DockData {
 5451                    visible: bottom_visible,
 5452                    active_panel: bottom_active_panel,
 5453                    zoom: bottom_dock_zoom,
 5454                },
 5455            }
 5456        }
 5457
 5458        match self.serialize_workspace_location(cx) {
 5459            WorkspaceLocation::Location(location, paths) => {
 5460                let breakpoints = self.project.update(cx, |project, cx| {
 5461                    project
 5462                        .breakpoint_store()
 5463                        .read(cx)
 5464                        .all_source_breakpoints(cx)
 5465                });
 5466                let user_toolchains = self
 5467                    .project
 5468                    .read(cx)
 5469                    .user_toolchains(cx)
 5470                    .unwrap_or_default();
 5471
 5472                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5473                let docks = build_serialized_docks(self, window, cx);
 5474                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5475
 5476                let serialized_workspace = SerializedWorkspace {
 5477                    id: database_id,
 5478                    location,
 5479                    paths,
 5480                    center_group,
 5481                    window_bounds,
 5482                    display: Default::default(),
 5483                    docks,
 5484                    centered_layout: self.centered_layout,
 5485                    session_id: self.session_id.clone(),
 5486                    breakpoints,
 5487                    window_id: Some(window.window_handle().window_id().as_u64()),
 5488                    user_toolchains,
 5489                };
 5490
 5491                window.spawn(cx, async move |_| {
 5492                    persistence::DB.save_workspace(serialized_workspace).await;
 5493                })
 5494            }
 5495            WorkspaceLocation::DetachFromSession => window.spawn(cx, async move |_| {
 5496                persistence::DB
 5497                    .set_session_id(database_id, None)
 5498                    .await
 5499                    .log_err();
 5500            }),
 5501            WorkspaceLocation::None => Task::ready(()),
 5502        }
 5503    }
 5504
 5505    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5506        let paths = PathList::new(&self.root_paths(cx));
 5507        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5508            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5509        } else if self.project.read(cx).is_local() {
 5510            if !paths.is_empty() {
 5511                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5512            } else {
 5513                WorkspaceLocation::DetachFromSession
 5514            }
 5515        } else {
 5516            WorkspaceLocation::None
 5517        }
 5518    }
 5519
 5520    fn update_history(&self, cx: &mut App) {
 5521        let Some(id) = self.database_id() else {
 5522            return;
 5523        };
 5524        if !self.project.read(cx).is_local() {
 5525            return;
 5526        }
 5527        if let Some(manager) = HistoryManager::global(cx) {
 5528            let paths = PathList::new(&self.root_paths(cx));
 5529            manager.update(cx, |this, cx| {
 5530                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5531            });
 5532        }
 5533    }
 5534
 5535    async fn serialize_items(
 5536        this: &WeakEntity<Self>,
 5537        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5538        cx: &mut AsyncWindowContext,
 5539    ) -> Result<()> {
 5540        const CHUNK_SIZE: usize = 200;
 5541
 5542        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5543
 5544        while let Some(items_received) = serializable_items.next().await {
 5545            let unique_items =
 5546                items_received
 5547                    .into_iter()
 5548                    .fold(HashMap::default(), |mut acc, item| {
 5549                        acc.entry(item.item_id()).or_insert(item);
 5550                        acc
 5551                    });
 5552
 5553            // We use into_iter() here so that the references to the items are moved into
 5554            // the tasks and not kept alive while we're sleeping.
 5555            for (_, item) in unique_items.into_iter() {
 5556                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5557                    item.serialize(workspace, false, window, cx)
 5558                }) {
 5559                    cx.background_spawn(async move { task.await.log_err() })
 5560                        .detach();
 5561                }
 5562            }
 5563
 5564            cx.background_executor()
 5565                .timer(SERIALIZATION_THROTTLE_TIME)
 5566                .await;
 5567        }
 5568
 5569        Ok(())
 5570    }
 5571
 5572    pub(crate) fn enqueue_item_serialization(
 5573        &mut self,
 5574        item: Box<dyn SerializableItemHandle>,
 5575    ) -> Result<()> {
 5576        self.serializable_items_tx
 5577            .unbounded_send(item)
 5578            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5579    }
 5580
 5581    pub(crate) fn load_workspace(
 5582        serialized_workspace: SerializedWorkspace,
 5583        paths_to_open: Vec<Option<ProjectPath>>,
 5584        window: &mut Window,
 5585        cx: &mut Context<Workspace>,
 5586    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5587        cx.spawn_in(window, async move |workspace, cx| {
 5588            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5589
 5590            let mut center_group = None;
 5591            let mut center_items = None;
 5592
 5593            // Traverse the splits tree and add to things
 5594            if let Some((group, active_pane, items)) = serialized_workspace
 5595                .center_group
 5596                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5597                .await
 5598            {
 5599                center_items = Some(items);
 5600                center_group = Some((group, active_pane))
 5601            }
 5602
 5603            let mut items_by_project_path = HashMap::default();
 5604            let mut item_ids_by_kind = HashMap::default();
 5605            let mut all_deserialized_items = Vec::default();
 5606            cx.update(|_, cx| {
 5607                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5608                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5609                        item_ids_by_kind
 5610                            .entry(serializable_item_handle.serialized_item_kind())
 5611                            .or_insert(Vec::new())
 5612                            .push(item.item_id().as_u64() as ItemId);
 5613                    }
 5614
 5615                    if let Some(project_path) = item.project_path(cx) {
 5616                        items_by_project_path.insert(project_path, item.clone());
 5617                    }
 5618                    all_deserialized_items.push(item);
 5619                }
 5620            })?;
 5621
 5622            let opened_items = paths_to_open
 5623                .into_iter()
 5624                .map(|path_to_open| {
 5625                    path_to_open
 5626                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5627                })
 5628                .collect::<Vec<_>>();
 5629
 5630            // Remove old panes from workspace panes list
 5631            workspace.update_in(cx, |workspace, window, cx| {
 5632                if let Some((center_group, active_pane)) = center_group {
 5633                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5634
 5635                    // Swap workspace center group
 5636                    workspace.center = PaneGroup::with_root(center_group);
 5637                    if let Some(active_pane) = active_pane {
 5638                        workspace.set_active_pane(&active_pane, window, cx);
 5639                        cx.focus_self(window);
 5640                    } else {
 5641                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5642                    }
 5643                }
 5644
 5645                let docks = serialized_workspace.docks;
 5646
 5647                for (dock, serialized_dock) in [
 5648                    (&mut workspace.right_dock, docks.right),
 5649                    (&mut workspace.left_dock, docks.left),
 5650                    (&mut workspace.bottom_dock, docks.bottom),
 5651                ]
 5652                .iter_mut()
 5653                {
 5654                    dock.update(cx, |dock, cx| {
 5655                        dock.serialized_dock = Some(serialized_dock.clone());
 5656                        dock.restore_state(window, cx);
 5657                    });
 5658                }
 5659
 5660                cx.notify();
 5661            })?;
 5662
 5663            let _ = project
 5664                .update(cx, |project, cx| {
 5665                    project
 5666                        .breakpoint_store()
 5667                        .update(cx, |breakpoint_store, cx| {
 5668                            breakpoint_store
 5669                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5670                        })
 5671                })?
 5672                .await;
 5673
 5674            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5675            // after loading the items, we might have different items and in order to avoid
 5676            // the database filling up, we delete items that haven't been loaded now.
 5677            //
 5678            // The items that have been loaded, have been saved after they've been added to the workspace.
 5679            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5680                item_ids_by_kind
 5681                    .into_iter()
 5682                    .map(|(item_kind, loaded_items)| {
 5683                        SerializableItemRegistry::cleanup(
 5684                            item_kind,
 5685                            serialized_workspace.id,
 5686                            loaded_items,
 5687                            window,
 5688                            cx,
 5689                        )
 5690                        .log_err()
 5691                    })
 5692                    .collect::<Vec<_>>()
 5693            })?;
 5694
 5695            futures::future::join_all(clean_up_tasks).await;
 5696
 5697            workspace
 5698                .update_in(cx, |workspace, window, cx| {
 5699                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5700                    workspace.serialize_workspace_internal(window, cx).detach();
 5701
 5702                    // Ensure that we mark the window as edited if we did load dirty items
 5703                    workspace.update_window_edited(window, cx);
 5704                })
 5705                .ok();
 5706
 5707            Ok(opened_items)
 5708        })
 5709    }
 5710
 5711    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5712        self.add_workspace_actions_listeners(div, window, cx)
 5713            .on_action(cx.listener(
 5714                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 5715                    for action in &action_sequence.0 {
 5716                        window.dispatch_action(action.boxed_clone(), cx);
 5717                    }
 5718                },
 5719            ))
 5720            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5721            .on_action(cx.listener(Self::close_all_items_and_panes))
 5722            .on_action(cx.listener(Self::save_all))
 5723            .on_action(cx.listener(Self::send_keystrokes))
 5724            .on_action(cx.listener(Self::add_folder_to_project))
 5725            .on_action(cx.listener(Self::follow_next_collaborator))
 5726            .on_action(cx.listener(Self::close_window))
 5727            .on_action(cx.listener(Self::activate_pane_at_index))
 5728            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5729            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5730            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5731            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5732                let pane = workspace.active_pane().clone();
 5733                workspace.unfollow_in_pane(&pane, window, cx);
 5734            }))
 5735            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5736                workspace
 5737                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5738                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5739            }))
 5740            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5741                workspace
 5742                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5743                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5744            }))
 5745            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5746                workspace
 5747                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5748                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5749            }))
 5750            .on_action(
 5751                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5752                    workspace.activate_previous_pane(window, cx)
 5753                }),
 5754            )
 5755            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5756                workspace.activate_next_pane(window, cx)
 5757            }))
 5758            .on_action(
 5759                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5760                    workspace.activate_next_window(cx)
 5761                }),
 5762            )
 5763            .on_action(
 5764                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5765                    workspace.activate_previous_window(cx)
 5766                }),
 5767            )
 5768            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5769                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5770            }))
 5771            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5772                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5773            }))
 5774            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5775                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5776            }))
 5777            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5778                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5779            }))
 5780            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5781                workspace.activate_next_pane(window, cx)
 5782            }))
 5783            .on_action(cx.listener(
 5784                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5785                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5786                },
 5787            ))
 5788            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5789                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5790            }))
 5791            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5792                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5793            }))
 5794            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5795                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5796            }))
 5797            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5798                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5799            }))
 5800            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 5801                workspace.move_pane_to_border(SplitDirection::Left, cx)
 5802            }))
 5803            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 5804                workspace.move_pane_to_border(SplitDirection::Right, cx)
 5805            }))
 5806            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 5807                workspace.move_pane_to_border(SplitDirection::Up, cx)
 5808            }))
 5809            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 5810                workspace.move_pane_to_border(SplitDirection::Down, cx)
 5811            }))
 5812            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 5813                this.toggle_dock(DockPosition::Left, window, cx);
 5814            }))
 5815            .on_action(cx.listener(
 5816                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 5817                    workspace.toggle_dock(DockPosition::Right, window, cx);
 5818                },
 5819            ))
 5820            .on_action(cx.listener(
 5821                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 5822                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 5823                },
 5824            ))
 5825            .on_action(cx.listener(
 5826                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 5827                    if !workspace.close_active_dock(window, cx) {
 5828                        cx.propagate();
 5829                    }
 5830                },
 5831            ))
 5832            .on_action(
 5833                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 5834                    workspace.close_all_docks(window, cx);
 5835                }),
 5836            )
 5837            .on_action(cx.listener(Self::toggle_all_docks))
 5838            .on_action(cx.listener(
 5839                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 5840                    workspace.clear_all_notifications(cx);
 5841                },
 5842            ))
 5843            .on_action(cx.listener(
 5844                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 5845                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 5846                        workspace.suppress_notification(&notification_id, cx);
 5847                    }
 5848                },
 5849            ))
 5850            .on_action(cx.listener(
 5851                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 5852                    workspace.reopen_closed_item(window, cx).detach();
 5853                },
 5854            ))
 5855            .on_action(cx.listener(
 5856                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 5857                    for dock in workspace.all_docks() {
 5858                        if dock.focus_handle(cx).contains_focused(window, cx) {
 5859                            let Some(panel) = dock.read(cx).active_panel() else {
 5860                                return;
 5861                            };
 5862
 5863                            // Set to `None`, then the size will fall back to the default.
 5864                            panel.clone().set_size(None, window, cx);
 5865
 5866                            return;
 5867                        }
 5868                    }
 5869                },
 5870            ))
 5871            .on_action(cx.listener(
 5872                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 5873                    for dock in workspace.all_docks() {
 5874                        if let Some(panel) = dock.read(cx).visible_panel() {
 5875                            // Set to `None`, then the size will fall back to the default.
 5876                            panel.clone().set_size(None, window, cx);
 5877                        }
 5878                    }
 5879                },
 5880            ))
 5881            .on_action(cx.listener(
 5882                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 5883                    adjust_active_dock_size_by_px(
 5884                        px_with_ui_font_fallback(act.px, cx),
 5885                        workspace,
 5886                        window,
 5887                        cx,
 5888                    );
 5889                },
 5890            ))
 5891            .on_action(cx.listener(
 5892                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 5893                    adjust_active_dock_size_by_px(
 5894                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5895                        workspace,
 5896                        window,
 5897                        cx,
 5898                    );
 5899                },
 5900            ))
 5901            .on_action(cx.listener(
 5902                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 5903                    adjust_open_docks_size_by_px(
 5904                        px_with_ui_font_fallback(act.px, cx),
 5905                        workspace,
 5906                        window,
 5907                        cx,
 5908                    );
 5909                },
 5910            ))
 5911            .on_action(cx.listener(
 5912                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 5913                    adjust_open_docks_size_by_px(
 5914                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5915                        workspace,
 5916                        window,
 5917                        cx,
 5918                    );
 5919                },
 5920            ))
 5921            .on_action(cx.listener(Workspace::toggle_centered_layout))
 5922            .on_action(cx.listener(Workspace::cancel))
 5923    }
 5924
 5925    #[cfg(any(test, feature = "test-support"))]
 5926    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 5927        use node_runtime::NodeRuntime;
 5928        use session::Session;
 5929
 5930        let client = project.read(cx).client();
 5931        let user_store = project.read(cx).user_store();
 5932        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 5933        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 5934        window.activate_window();
 5935        let app_state = Arc::new(AppState {
 5936            languages: project.read(cx).languages().clone(),
 5937            workspace_store,
 5938            client,
 5939            user_store,
 5940            fs: project.read(cx).fs().clone(),
 5941            build_window_options: |_, _| Default::default(),
 5942            node_runtime: NodeRuntime::unavailable(),
 5943            session,
 5944        });
 5945        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 5946        workspace
 5947            .active_pane
 5948            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5949        workspace
 5950    }
 5951
 5952    pub fn register_action<A: Action>(
 5953        &mut self,
 5954        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 5955    ) -> &mut Self {
 5956        let callback = Arc::new(callback);
 5957
 5958        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 5959            let callback = callback.clone();
 5960            div.on_action(cx.listener(move |workspace, event, window, cx| {
 5961                (callback)(workspace, event, window, cx)
 5962            }))
 5963        }));
 5964        self
 5965    }
 5966    pub fn register_action_renderer(
 5967        &mut self,
 5968        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 5969    ) -> &mut Self {
 5970        self.workspace_actions.push(Box::new(callback));
 5971        self
 5972    }
 5973
 5974    fn add_workspace_actions_listeners(
 5975        &self,
 5976        mut div: Div,
 5977        window: &mut Window,
 5978        cx: &mut Context<Self>,
 5979    ) -> Div {
 5980        for action in self.workspace_actions.iter() {
 5981            div = (action)(div, self, window, cx)
 5982        }
 5983        div
 5984    }
 5985
 5986    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 5987        self.modal_layer.read(cx).has_active_modal()
 5988    }
 5989
 5990    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 5991        self.modal_layer.read(cx).active_modal()
 5992    }
 5993
 5994    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 5995    where
 5996        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 5997    {
 5998        self.modal_layer.update(cx, |modal_layer, cx| {
 5999            modal_layer.toggle_modal(window, cx, build)
 6000        })
 6001    }
 6002
 6003    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6004        self.modal_layer
 6005            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6006    }
 6007
 6008    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6009        self.toast_layer
 6010            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6011    }
 6012
 6013    pub fn toggle_centered_layout(
 6014        &mut self,
 6015        _: &ToggleCenteredLayout,
 6016        _: &mut Window,
 6017        cx: &mut Context<Self>,
 6018    ) {
 6019        self.centered_layout = !self.centered_layout;
 6020        if let Some(database_id) = self.database_id() {
 6021            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6022                .detach_and_log_err(cx);
 6023        }
 6024        cx.notify();
 6025    }
 6026
 6027    fn adjust_padding(padding: Option<f32>) -> f32 {
 6028        padding
 6029            .unwrap_or(CenteredPaddingSettings::default().0)
 6030            .clamp(
 6031                CenteredPaddingSettings::MIN_PADDING,
 6032                CenteredPaddingSettings::MAX_PADDING,
 6033            )
 6034    }
 6035
 6036    fn render_dock(
 6037        &self,
 6038        position: DockPosition,
 6039        dock: &Entity<Dock>,
 6040        window: &mut Window,
 6041        cx: &mut App,
 6042    ) -> Option<Div> {
 6043        if self.zoomed_position == Some(position) {
 6044            return None;
 6045        }
 6046
 6047        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6048            let pane = panel.pane(cx)?;
 6049            let follower_states = &self.follower_states;
 6050            leader_border_for_pane(follower_states, &pane, window, cx)
 6051        });
 6052
 6053        Some(
 6054            div()
 6055                .flex()
 6056                .flex_none()
 6057                .overflow_hidden()
 6058                .child(dock.clone())
 6059                .children(leader_border),
 6060        )
 6061    }
 6062
 6063    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6064        window.root().flatten()
 6065    }
 6066
 6067    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6068        self.zoomed.as_ref()
 6069    }
 6070
 6071    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6072        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6073            return;
 6074        };
 6075        let windows = cx.windows();
 6076        let next_window =
 6077            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6078                || {
 6079                    windows
 6080                        .iter()
 6081                        .cycle()
 6082                        .skip_while(|window| window.window_id() != current_window_id)
 6083                        .nth(1)
 6084                },
 6085            );
 6086
 6087        if let Some(window) = next_window {
 6088            window
 6089                .update(cx, |_, window, _| window.activate_window())
 6090                .ok();
 6091        }
 6092    }
 6093
 6094    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6095        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6096            return;
 6097        };
 6098        let windows = cx.windows();
 6099        let prev_window =
 6100            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6101                || {
 6102                    windows
 6103                        .iter()
 6104                        .rev()
 6105                        .cycle()
 6106                        .skip_while(|window| window.window_id() != current_window_id)
 6107                        .nth(1)
 6108                },
 6109            );
 6110
 6111        if let Some(window) = prev_window {
 6112            window
 6113                .update(cx, |_, window, _| window.activate_window())
 6114                .ok();
 6115        }
 6116    }
 6117
 6118    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6119        if cx.stop_active_drag(window) {
 6120        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6121            dismiss_app_notification(&notification_id, cx);
 6122        } else {
 6123            cx.propagate();
 6124        }
 6125    }
 6126
 6127    fn adjust_dock_size_by_px(
 6128        &mut self,
 6129        panel_size: Pixels,
 6130        dock_pos: DockPosition,
 6131        px: Pixels,
 6132        window: &mut Window,
 6133        cx: &mut Context<Self>,
 6134    ) {
 6135        match dock_pos {
 6136            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6137            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6138            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6139        }
 6140    }
 6141
 6142    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6143        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6144
 6145        self.left_dock.update(cx, |left_dock, cx| {
 6146            if WorkspaceSettings::get_global(cx)
 6147                .resize_all_panels_in_dock
 6148                .contains(&DockPosition::Left)
 6149            {
 6150                left_dock.resize_all_panels(Some(size), window, cx);
 6151            } else {
 6152                left_dock.resize_active_panel(Some(size), window, cx);
 6153            }
 6154        });
 6155    }
 6156
 6157    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6158        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6159        self.left_dock.read_with(cx, |left_dock, cx| {
 6160            let left_dock_size = left_dock
 6161                .active_panel_size(window, cx)
 6162                .unwrap_or(Pixels::ZERO);
 6163            if left_dock_size + size > self.bounds.right() {
 6164                size = self.bounds.right() - left_dock_size
 6165            }
 6166        });
 6167        self.right_dock.update(cx, |right_dock, cx| {
 6168            if WorkspaceSettings::get_global(cx)
 6169                .resize_all_panels_in_dock
 6170                .contains(&DockPosition::Right)
 6171            {
 6172                right_dock.resize_all_panels(Some(size), window, cx);
 6173            } else {
 6174                right_dock.resize_active_panel(Some(size), window, cx);
 6175            }
 6176        });
 6177    }
 6178
 6179    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6180        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6181        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6182            if WorkspaceSettings::get_global(cx)
 6183                .resize_all_panels_in_dock
 6184                .contains(&DockPosition::Bottom)
 6185            {
 6186                bottom_dock.resize_all_panels(Some(size), window, cx);
 6187            } else {
 6188                bottom_dock.resize_active_panel(Some(size), window, cx);
 6189            }
 6190        });
 6191    }
 6192
 6193    fn toggle_edit_predictions_all_files(
 6194        &mut self,
 6195        _: &ToggleEditPrediction,
 6196        _window: &mut Window,
 6197        cx: &mut Context<Self>,
 6198    ) {
 6199        let fs = self.project().read(cx).fs().clone();
 6200        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6201        update_settings_file(fs, cx, move |file, _| {
 6202            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6203        });
 6204    }
 6205}
 6206
 6207fn leader_border_for_pane(
 6208    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6209    pane: &Entity<Pane>,
 6210    _: &Window,
 6211    cx: &App,
 6212) -> Option<Div> {
 6213    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6214        if state.pane() == pane {
 6215            Some((*leader_id, state))
 6216        } else {
 6217            None
 6218        }
 6219    })?;
 6220
 6221    let mut leader_color = match leader_id {
 6222        CollaboratorId::PeerId(leader_peer_id) => {
 6223            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6224            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6225
 6226            cx.theme()
 6227                .players()
 6228                .color_for_participant(leader.participant_index.0)
 6229                .cursor
 6230        }
 6231        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6232    };
 6233    leader_color.fade_out(0.3);
 6234    Some(
 6235        div()
 6236            .absolute()
 6237            .size_full()
 6238            .left_0()
 6239            .top_0()
 6240            .border_2()
 6241            .border_color(leader_color),
 6242    )
 6243}
 6244
 6245fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6246    ZED_WINDOW_POSITION
 6247        .zip(*ZED_WINDOW_SIZE)
 6248        .map(|(position, size)| Bounds {
 6249            origin: position,
 6250            size,
 6251        })
 6252}
 6253
 6254fn open_items(
 6255    serialized_workspace: Option<SerializedWorkspace>,
 6256    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6257    window: &mut Window,
 6258    cx: &mut Context<Workspace>,
 6259) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6260    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6261        Workspace::load_workspace(
 6262            serialized_workspace,
 6263            project_paths_to_open
 6264                .iter()
 6265                .map(|(_, project_path)| project_path)
 6266                .cloned()
 6267                .collect(),
 6268            window,
 6269            cx,
 6270        )
 6271    });
 6272
 6273    cx.spawn_in(window, async move |workspace, cx| {
 6274        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6275
 6276        if let Some(restored_items) = restored_items {
 6277            let restored_items = restored_items.await?;
 6278
 6279            let restored_project_paths = restored_items
 6280                .iter()
 6281                .filter_map(|item| {
 6282                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6283                        .ok()
 6284                        .flatten()
 6285                })
 6286                .collect::<HashSet<_>>();
 6287
 6288            for restored_item in restored_items {
 6289                opened_items.push(restored_item.map(Ok));
 6290            }
 6291
 6292            project_paths_to_open
 6293                .iter_mut()
 6294                .for_each(|(_, project_path)| {
 6295                    if let Some(project_path_to_open) = project_path
 6296                        && restored_project_paths.contains(project_path_to_open)
 6297                    {
 6298                        *project_path = None;
 6299                    }
 6300                });
 6301        } else {
 6302            for _ in 0..project_paths_to_open.len() {
 6303                opened_items.push(None);
 6304            }
 6305        }
 6306        assert!(opened_items.len() == project_paths_to_open.len());
 6307
 6308        let tasks =
 6309            project_paths_to_open
 6310                .into_iter()
 6311                .enumerate()
 6312                .map(|(ix, (abs_path, project_path))| {
 6313                    let workspace = workspace.clone();
 6314                    cx.spawn(async move |cx| {
 6315                        let file_project_path = project_path?;
 6316                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6317                            workspace.project().update(cx, |project, cx| {
 6318                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6319                            })
 6320                        });
 6321
 6322                        // We only want to open file paths here. If one of the items
 6323                        // here is a directory, it was already opened further above
 6324                        // with a `find_or_create_worktree`.
 6325                        if let Ok(task) = abs_path_task
 6326                            && task.await.is_none_or(|p| p.is_file())
 6327                        {
 6328                            return Some((
 6329                                ix,
 6330                                workspace
 6331                                    .update_in(cx, |workspace, window, cx| {
 6332                                        workspace.open_path(
 6333                                            file_project_path,
 6334                                            None,
 6335                                            true,
 6336                                            window,
 6337                                            cx,
 6338                                        )
 6339                                    })
 6340                                    .log_err()?
 6341                                    .await,
 6342                            ));
 6343                        }
 6344                        None
 6345                    })
 6346                });
 6347
 6348        let tasks = tasks.collect::<Vec<_>>();
 6349
 6350        let tasks = futures::future::join_all(tasks);
 6351        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6352            opened_items[ix] = Some(path_open_result);
 6353        }
 6354
 6355        Ok(opened_items)
 6356    })
 6357}
 6358
 6359enum ActivateInDirectionTarget {
 6360    Pane(Entity<Pane>),
 6361    Dock(Entity<Dock>),
 6362}
 6363
 6364fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6365    workspace
 6366        .update(cx, |workspace, _, cx| {
 6367            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6368                struct DatabaseFailedNotification;
 6369
 6370                workspace.show_notification(
 6371                    NotificationId::unique::<DatabaseFailedNotification>(),
 6372                    cx,
 6373                    |cx| {
 6374                        cx.new(|cx| {
 6375                            MessageNotification::new("Failed to load the database file.", cx)
 6376                                .primary_message("File an Issue")
 6377                                .primary_icon(IconName::Plus)
 6378                                .primary_on_click(|window, cx| {
 6379                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6380                                })
 6381                        })
 6382                    },
 6383                );
 6384            }
 6385        })
 6386        .log_err();
 6387}
 6388
 6389fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6390    if val == 0 {
 6391        ThemeSettings::get_global(cx).ui_font_size(cx)
 6392    } else {
 6393        px(val as f32)
 6394    }
 6395}
 6396
 6397fn adjust_active_dock_size_by_px(
 6398    px: Pixels,
 6399    workspace: &mut Workspace,
 6400    window: &mut Window,
 6401    cx: &mut Context<Workspace>,
 6402) {
 6403    let Some(active_dock) = workspace
 6404        .all_docks()
 6405        .into_iter()
 6406        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6407    else {
 6408        return;
 6409    };
 6410    let dock = active_dock.read(cx);
 6411    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6412        return;
 6413    };
 6414    let dock_pos = dock.position();
 6415    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6416}
 6417
 6418fn adjust_open_docks_size_by_px(
 6419    px: Pixels,
 6420    workspace: &mut Workspace,
 6421    window: &mut Window,
 6422    cx: &mut Context<Workspace>,
 6423) {
 6424    let docks = workspace
 6425        .all_docks()
 6426        .into_iter()
 6427        .filter_map(|dock| {
 6428            if dock.read(cx).is_open() {
 6429                let dock = dock.read(cx);
 6430                let panel_size = dock.active_panel_size(window, cx)?;
 6431                let dock_pos = dock.position();
 6432                Some((panel_size, dock_pos, px))
 6433            } else {
 6434                None
 6435            }
 6436        })
 6437        .collect::<Vec<_>>();
 6438
 6439    docks
 6440        .into_iter()
 6441        .for_each(|(panel_size, dock_pos, offset)| {
 6442            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6443        });
 6444}
 6445
 6446impl Focusable for Workspace {
 6447    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6448        self.active_pane.focus_handle(cx)
 6449    }
 6450}
 6451
 6452#[derive(Clone)]
 6453struct DraggedDock(DockPosition);
 6454
 6455impl Render for DraggedDock {
 6456    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6457        gpui::Empty
 6458    }
 6459}
 6460
 6461impl Render for Workspace {
 6462    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6463        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 6464        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 6465            log::info!("Rendered first frame");
 6466        }
 6467        let mut context = KeyContext::new_with_defaults();
 6468        context.add("Workspace");
 6469        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6470        if let Some(status) = self
 6471            .debugger_provider
 6472            .as_ref()
 6473            .and_then(|provider| provider.active_thread_state(cx))
 6474        {
 6475            match status {
 6476                ThreadStatus::Running | ThreadStatus::Stepping => {
 6477                    context.add("debugger_running");
 6478                }
 6479                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6480                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6481            }
 6482        }
 6483
 6484        if self.left_dock.read(cx).is_open() {
 6485            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6486                context.set("left_dock", active_panel.panel_key());
 6487            }
 6488        }
 6489
 6490        if self.right_dock.read(cx).is_open() {
 6491            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6492                context.set("right_dock", active_panel.panel_key());
 6493            }
 6494        }
 6495
 6496        if self.bottom_dock.read(cx).is_open() {
 6497            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6498                context.set("bottom_dock", active_panel.panel_key());
 6499            }
 6500        }
 6501
 6502        let centered_layout = self.centered_layout
 6503            && self.center.panes().len() == 1
 6504            && self.active_item(cx).is_some();
 6505        let render_padding = |size| {
 6506            (size > 0.0).then(|| {
 6507                div()
 6508                    .h_full()
 6509                    .w(relative(size))
 6510                    .bg(cx.theme().colors().editor_background)
 6511                    .border_color(cx.theme().colors().pane_group_border)
 6512            })
 6513        };
 6514        let paddings = if centered_layout {
 6515            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6516            (
 6517                render_padding(Self::adjust_padding(
 6518                    settings.left_padding.map(|padding| padding.0),
 6519                )),
 6520                render_padding(Self::adjust_padding(
 6521                    settings.right_padding.map(|padding| padding.0),
 6522                )),
 6523            )
 6524        } else {
 6525            (None, None)
 6526        };
 6527        let ui_font = theme::setup_ui_font(window, cx);
 6528
 6529        let theme = cx.theme().clone();
 6530        let colors = theme.colors();
 6531        let notification_entities = self
 6532            .notifications
 6533            .iter()
 6534            .map(|(_, notification)| notification.entity_id())
 6535            .collect::<Vec<_>>();
 6536        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6537
 6538        client_side_decorations(
 6539            self.actions(div(), window, cx)
 6540                .key_context(context)
 6541                .relative()
 6542                .size_full()
 6543                .flex()
 6544                .flex_col()
 6545                .font(ui_font)
 6546                .gap_0()
 6547                .justify_start()
 6548                .items_start()
 6549                .text_color(colors.text)
 6550                .overflow_hidden()
 6551                .children(self.titlebar_item.clone())
 6552                .on_modifiers_changed(move |_, _, cx| {
 6553                    for &id in &notification_entities {
 6554                        cx.notify(id);
 6555                    }
 6556                })
 6557                .child(
 6558                    div()
 6559                        .size_full()
 6560                        .relative()
 6561                        .flex_1()
 6562                        .flex()
 6563                        .flex_col()
 6564                        .child(
 6565                            div()
 6566                                .id("workspace")
 6567                                .bg(colors.background)
 6568                                .relative()
 6569                                .flex_1()
 6570                                .w_full()
 6571                                .flex()
 6572                                .flex_col()
 6573                                .overflow_hidden()
 6574                                .border_t_1()
 6575                                .border_b_1()
 6576                                .border_color(colors.border)
 6577                                .child({
 6578                                    let this = cx.entity();
 6579                                    canvas(
 6580                                        move |bounds, window, cx| {
 6581                                            this.update(cx, |this, cx| {
 6582                                                let bounds_changed = this.bounds != bounds;
 6583                                                this.bounds = bounds;
 6584
 6585                                                if bounds_changed {
 6586                                                    this.left_dock.update(cx, |dock, cx| {
 6587                                                        dock.clamp_panel_size(
 6588                                                            bounds.size.width,
 6589                                                            window,
 6590                                                            cx,
 6591                                                        )
 6592                                                    });
 6593
 6594                                                    this.right_dock.update(cx, |dock, cx| {
 6595                                                        dock.clamp_panel_size(
 6596                                                            bounds.size.width,
 6597                                                            window,
 6598                                                            cx,
 6599                                                        )
 6600                                                    });
 6601
 6602                                                    this.bottom_dock.update(cx, |dock, cx| {
 6603                                                        dock.clamp_panel_size(
 6604                                                            bounds.size.height,
 6605                                                            window,
 6606                                                            cx,
 6607                                                        )
 6608                                                    });
 6609                                                }
 6610                                            })
 6611                                        },
 6612                                        |_, _, _, _| {},
 6613                                    )
 6614                                    .absolute()
 6615                                    .size_full()
 6616                                })
 6617                                .when(self.zoomed.is_none(), |this| {
 6618                                    this.on_drag_move(cx.listener(
 6619                                        move |workspace,
 6620                                              e: &DragMoveEvent<DraggedDock>,
 6621                                              window,
 6622                                              cx| {
 6623                                            if workspace.previous_dock_drag_coordinates
 6624                                                != Some(e.event.position)
 6625                                            {
 6626                                                workspace.previous_dock_drag_coordinates =
 6627                                                    Some(e.event.position);
 6628                                                match e.drag(cx).0 {
 6629                                                    DockPosition::Left => {
 6630                                                        workspace.resize_left_dock(
 6631                                                            e.event.position.x
 6632                                                                - workspace.bounds.left(),
 6633                                                            window,
 6634                                                            cx,
 6635                                                        );
 6636                                                    }
 6637                                                    DockPosition::Right => {
 6638                                                        workspace.resize_right_dock(
 6639                                                            workspace.bounds.right()
 6640                                                                - e.event.position.x,
 6641                                                            window,
 6642                                                            cx,
 6643                                                        );
 6644                                                    }
 6645                                                    DockPosition::Bottom => {
 6646                                                        workspace.resize_bottom_dock(
 6647                                                            workspace.bounds.bottom()
 6648                                                                - e.event.position.y,
 6649                                                            window,
 6650                                                            cx,
 6651                                                        );
 6652                                                    }
 6653                                                };
 6654                                                workspace.serialize_workspace(window, cx);
 6655                                            }
 6656                                        },
 6657                                    ))
 6658                                })
 6659                                .child({
 6660                                    match bottom_dock_layout {
 6661                                        BottomDockLayout::Full => div()
 6662                                            .flex()
 6663                                            .flex_col()
 6664                                            .h_full()
 6665                                            .child(
 6666                                                div()
 6667                                                    .flex()
 6668                                                    .flex_row()
 6669                                                    .flex_1()
 6670                                                    .overflow_hidden()
 6671                                                    .children(self.render_dock(
 6672                                                        DockPosition::Left,
 6673                                                        &self.left_dock,
 6674                                                        window,
 6675                                                        cx,
 6676                                                    ))
 6677                                                    .child(
 6678                                                        div()
 6679                                                            .flex()
 6680                                                            .flex_col()
 6681                                                            .flex_1()
 6682                                                            .overflow_hidden()
 6683                                                            .child(
 6684                                                                h_flex()
 6685                                                                    .flex_1()
 6686                                                                    .when_some(
 6687                                                                        paddings.0,
 6688                                                                        |this, p| {
 6689                                                                            this.child(
 6690                                                                                p.border_r_1(),
 6691                                                                            )
 6692                                                                        },
 6693                                                                    )
 6694                                                                    .child(self.center.render(
 6695                                                                        self.zoomed.as_ref(),
 6696                                                                        &PaneRenderContext {
 6697                                                                            follower_states:
 6698                                                                                &self.follower_states,
 6699                                                                            active_call: self.active_call(),
 6700                                                                            active_pane: &self.active_pane,
 6701                                                                            app_state: &self.app_state,
 6702                                                                            project: &self.project,
 6703                                                                            workspace: &self.weak_self,
 6704                                                                        },
 6705                                                                        window,
 6706                                                                        cx,
 6707                                                                    ))
 6708                                                                    .when_some(
 6709                                                                        paddings.1,
 6710                                                                        |this, p| {
 6711                                                                            this.child(
 6712                                                                                p.border_l_1(),
 6713                                                                            )
 6714                                                                        },
 6715                                                                    ),
 6716                                                            ),
 6717                                                    )
 6718                                                    .children(self.render_dock(
 6719                                                        DockPosition::Right,
 6720                                                        &self.right_dock,
 6721                                                        window,
 6722                                                        cx,
 6723                                                    )),
 6724                                            )
 6725                                            .child(div().w_full().children(self.render_dock(
 6726                                                DockPosition::Bottom,
 6727                                                &self.bottom_dock,
 6728                                                window,
 6729                                                cx
 6730                                            ))),
 6731
 6732                                        BottomDockLayout::LeftAligned => div()
 6733                                            .flex()
 6734                                            .flex_row()
 6735                                            .h_full()
 6736                                            .child(
 6737                                                div()
 6738                                                    .flex()
 6739                                                    .flex_col()
 6740                                                    .flex_1()
 6741                                                    .h_full()
 6742                                                    .child(
 6743                                                        div()
 6744                                                            .flex()
 6745                                                            .flex_row()
 6746                                                            .flex_1()
 6747                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 6748                                                            .child(
 6749                                                                div()
 6750                                                                    .flex()
 6751                                                                    .flex_col()
 6752                                                                    .flex_1()
 6753                                                                    .overflow_hidden()
 6754                                                                    .child(
 6755                                                                        h_flex()
 6756                                                                            .flex_1()
 6757                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6758                                                                            .child(self.center.render(
 6759                                                                                self.zoomed.as_ref(),
 6760                                                                                &PaneRenderContext {
 6761                                                                                    follower_states:
 6762                                                                                        &self.follower_states,
 6763                                                                                    active_call: self.active_call(),
 6764                                                                                    active_pane: &self.active_pane,
 6765                                                                                    app_state: &self.app_state,
 6766                                                                                    project: &self.project,
 6767                                                                                    workspace: &self.weak_self,
 6768                                                                                },
 6769                                                                                window,
 6770                                                                                cx,
 6771                                                                            ))
 6772                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6773                                                                    )
 6774                                                            )
 6775                                                    )
 6776                                                    .child(
 6777                                                        div()
 6778                                                            .w_full()
 6779                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6780                                                    ),
 6781                                            )
 6782                                            .children(self.render_dock(
 6783                                                DockPosition::Right,
 6784                                                &self.right_dock,
 6785                                                window,
 6786                                                cx,
 6787                                            )),
 6788
 6789                                        BottomDockLayout::RightAligned => div()
 6790                                            .flex()
 6791                                            .flex_row()
 6792                                            .h_full()
 6793                                            .children(self.render_dock(
 6794                                                DockPosition::Left,
 6795                                                &self.left_dock,
 6796                                                window,
 6797                                                cx,
 6798                                            ))
 6799                                            .child(
 6800                                                div()
 6801                                                    .flex()
 6802                                                    .flex_col()
 6803                                                    .flex_1()
 6804                                                    .h_full()
 6805                                                    .child(
 6806                                                        div()
 6807                                                            .flex()
 6808                                                            .flex_row()
 6809                                                            .flex_1()
 6810                                                            .child(
 6811                                                                div()
 6812                                                                    .flex()
 6813                                                                    .flex_col()
 6814                                                                    .flex_1()
 6815                                                                    .overflow_hidden()
 6816                                                                    .child(
 6817                                                                        h_flex()
 6818                                                                            .flex_1()
 6819                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6820                                                                            .child(self.center.render(
 6821                                                                                self.zoomed.as_ref(),
 6822                                                                                &PaneRenderContext {
 6823                                                                                    follower_states:
 6824                                                                                        &self.follower_states,
 6825                                                                                    active_call: self.active_call(),
 6826                                                                                    active_pane: &self.active_pane,
 6827                                                                                    app_state: &self.app_state,
 6828                                                                                    project: &self.project,
 6829                                                                                    workspace: &self.weak_self,
 6830                                                                                },
 6831                                                                                window,
 6832                                                                                cx,
 6833                                                                            ))
 6834                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6835                                                                    )
 6836                                                            )
 6837                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 6838                                                    )
 6839                                                    .child(
 6840                                                        div()
 6841                                                            .w_full()
 6842                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6843                                                    ),
 6844                                            ),
 6845
 6846                                        BottomDockLayout::Contained => div()
 6847                                            .flex()
 6848                                            .flex_row()
 6849                                            .h_full()
 6850                                            .children(self.render_dock(
 6851                                                DockPosition::Left,
 6852                                                &self.left_dock,
 6853                                                window,
 6854                                                cx,
 6855                                            ))
 6856                                            .child(
 6857                                                div()
 6858                                                    .flex()
 6859                                                    .flex_col()
 6860                                                    .flex_1()
 6861                                                    .overflow_hidden()
 6862                                                    .child(
 6863                                                        h_flex()
 6864                                                            .flex_1()
 6865                                                            .when_some(paddings.0, |this, p| {
 6866                                                                this.child(p.border_r_1())
 6867                                                            })
 6868                                                            .child(self.center.render(
 6869                                                                self.zoomed.as_ref(),
 6870                                                                &PaneRenderContext {
 6871                                                                    follower_states:
 6872                                                                        &self.follower_states,
 6873                                                                    active_call: self.active_call(),
 6874                                                                    active_pane: &self.active_pane,
 6875                                                                    app_state: &self.app_state,
 6876                                                                    project: &self.project,
 6877                                                                    workspace: &self.weak_self,
 6878                                                                },
 6879                                                                window,
 6880                                                                cx,
 6881                                                            ))
 6882                                                            .when_some(paddings.1, |this, p| {
 6883                                                                this.child(p.border_l_1())
 6884                                                            }),
 6885                                                    )
 6886                                                    .children(self.render_dock(
 6887                                                        DockPosition::Bottom,
 6888                                                        &self.bottom_dock,
 6889                                                        window,
 6890                                                        cx,
 6891                                                    )),
 6892                                            )
 6893                                            .children(self.render_dock(
 6894                                                DockPosition::Right,
 6895                                                &self.right_dock,
 6896                                                window,
 6897                                                cx,
 6898                                            )),
 6899                                    }
 6900                                })
 6901                                .children(self.zoomed.as_ref().and_then(|view| {
 6902                                    let zoomed_view = view.upgrade()?;
 6903                                    let div = div()
 6904                                        .occlude()
 6905                                        .absolute()
 6906                                        .overflow_hidden()
 6907                                        .border_color(colors.border)
 6908                                        .bg(colors.background)
 6909                                        .child(zoomed_view)
 6910                                        .inset_0()
 6911                                        .shadow_lg();
 6912
 6913                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 6914                                       return Some(div);
 6915                                    }
 6916
 6917                                    Some(match self.zoomed_position {
 6918                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 6919                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 6920                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 6921                                        None => {
 6922                                            div.top_2().bottom_2().left_2().right_2().border_1()
 6923                                        }
 6924                                    })
 6925                                }))
 6926                                .children(self.render_notifications(window, cx)),
 6927                        )
 6928                        .when(self.status_bar_visible(cx), |parent| {
 6929                            parent.child(self.status_bar.clone())
 6930                        })
 6931                        .child(self.modal_layer.clone())
 6932                        .child(self.toast_layer.clone()),
 6933                ),
 6934            window,
 6935            cx,
 6936        )
 6937    }
 6938}
 6939
 6940impl WorkspaceStore {
 6941    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 6942        Self {
 6943            workspaces: Default::default(),
 6944            _subscriptions: vec![
 6945                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 6946                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 6947            ],
 6948            client,
 6949        }
 6950    }
 6951
 6952    pub fn update_followers(
 6953        &self,
 6954        project_id: Option<u64>,
 6955        update: proto::update_followers::Variant,
 6956        cx: &App,
 6957    ) -> Option<()> {
 6958        let active_call = ActiveCall::try_global(cx)?;
 6959        let room_id = active_call.read(cx).room()?.read(cx).id();
 6960        self.client
 6961            .send(proto::UpdateFollowers {
 6962                room_id,
 6963                project_id,
 6964                variant: Some(update),
 6965            })
 6966            .log_err()
 6967    }
 6968
 6969    pub async fn handle_follow(
 6970        this: Entity<Self>,
 6971        envelope: TypedEnvelope<proto::Follow>,
 6972        mut cx: AsyncApp,
 6973    ) -> Result<proto::FollowResponse> {
 6974        this.update(&mut cx, |this, cx| {
 6975            let follower = Follower {
 6976                project_id: envelope.payload.project_id,
 6977                peer_id: envelope.original_sender_id()?,
 6978            };
 6979
 6980            let mut response = proto::FollowResponse::default();
 6981            this.workspaces.retain(|workspace| {
 6982                workspace
 6983                    .update(cx, |workspace, window, cx| {
 6984                        let handler_response =
 6985                            workspace.handle_follow(follower.project_id, window, cx);
 6986                        if let Some(active_view) = handler_response.active_view
 6987                            && workspace.project.read(cx).remote_id() == follower.project_id
 6988                        {
 6989                            response.active_view = Some(active_view)
 6990                        }
 6991                    })
 6992                    .is_ok()
 6993            });
 6994
 6995            Ok(response)
 6996        })?
 6997    }
 6998
 6999    async fn handle_update_followers(
 7000        this: Entity<Self>,
 7001        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7002        mut cx: AsyncApp,
 7003    ) -> Result<()> {
 7004        let leader_id = envelope.original_sender_id()?;
 7005        let update = envelope.payload;
 7006
 7007        this.update(&mut cx, |this, cx| {
 7008            this.workspaces.retain(|workspace| {
 7009                workspace
 7010                    .update(cx, |workspace, window, cx| {
 7011                        let project_id = workspace.project.read(cx).remote_id();
 7012                        if update.project_id != project_id && update.project_id.is_some() {
 7013                            return;
 7014                        }
 7015                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7016                    })
 7017                    .is_ok()
 7018            });
 7019            Ok(())
 7020        })?
 7021    }
 7022
 7023    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7024        &self.workspaces
 7025    }
 7026}
 7027
 7028impl ViewId {
 7029    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7030        Ok(Self {
 7031            creator: message
 7032                .creator
 7033                .map(CollaboratorId::PeerId)
 7034                .context("creator is missing")?,
 7035            id: message.id,
 7036        })
 7037    }
 7038
 7039    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7040        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7041            Some(proto::ViewId {
 7042                creator: Some(peer_id),
 7043                id: self.id,
 7044            })
 7045        } else {
 7046            None
 7047        }
 7048    }
 7049}
 7050
 7051impl FollowerState {
 7052    fn pane(&self) -> &Entity<Pane> {
 7053        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7054    }
 7055}
 7056
 7057pub trait WorkspaceHandle {
 7058    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7059}
 7060
 7061impl WorkspaceHandle for Entity<Workspace> {
 7062    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7063        self.read(cx)
 7064            .worktrees(cx)
 7065            .flat_map(|worktree| {
 7066                let worktree_id = worktree.read(cx).id();
 7067                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7068                    worktree_id,
 7069                    path: f.path.clone(),
 7070                })
 7071            })
 7072            .collect::<Vec<_>>()
 7073    }
 7074}
 7075
 7076pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7077    DB.last_workspace().await.log_err().flatten()
 7078}
 7079
 7080pub fn last_session_workspace_locations(
 7081    last_session_id: &str,
 7082    last_session_window_stack: Option<Vec<WindowId>>,
 7083) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7084    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7085        .log_err()
 7086}
 7087
 7088actions!(
 7089    collab,
 7090    [
 7091        /// Opens the channel notes for the current call.
 7092        ///
 7093        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7094        /// channel in the collab panel.
 7095        ///
 7096        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7097        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7098        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7099        OpenChannelNotes,
 7100        /// Mutes your microphone.
 7101        Mute,
 7102        /// Deafens yourself (mute both microphone and speakers).
 7103        Deafen,
 7104        /// Leaves the current call.
 7105        LeaveCall,
 7106        /// Shares the current project with collaborators.
 7107        ShareProject,
 7108        /// Shares your screen with collaborators.
 7109        ScreenShare
 7110    ]
 7111);
 7112actions!(
 7113    zed,
 7114    [
 7115        /// Opens the Zed log file.
 7116        OpenLog,
 7117        /// Reveals the Zed log file in the system file manager.
 7118        RevealLogInFileManager
 7119    ]
 7120);
 7121
 7122async fn join_channel_internal(
 7123    channel_id: ChannelId,
 7124    app_state: &Arc<AppState>,
 7125    requesting_window: Option<WindowHandle<Workspace>>,
 7126    active_call: &Entity<ActiveCall>,
 7127    cx: &mut AsyncApp,
 7128) -> Result<bool> {
 7129    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7130        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7131            return (false, None);
 7132        };
 7133
 7134        let already_in_channel = room.channel_id() == Some(channel_id);
 7135        let should_prompt = room.is_sharing_project()
 7136            && !room.remote_participants().is_empty()
 7137            && !already_in_channel;
 7138        let open_room = if already_in_channel {
 7139            active_call.room().cloned()
 7140        } else {
 7141            None
 7142        };
 7143        (should_prompt, open_room)
 7144    })?;
 7145
 7146    if let Some(room) = open_room {
 7147        let task = room.update(cx, |room, cx| {
 7148            if let Some((project, host)) = room.most_active_project(cx) {
 7149                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7150            }
 7151
 7152            None
 7153        })?;
 7154        if let Some(task) = task {
 7155            task.await?;
 7156        }
 7157        return anyhow::Ok(true);
 7158    }
 7159
 7160    if should_prompt {
 7161        if let Some(workspace) = requesting_window {
 7162            let answer = workspace
 7163                .update(cx, |_, window, cx| {
 7164                    window.prompt(
 7165                        PromptLevel::Warning,
 7166                        "Do you want to switch channels?",
 7167                        Some("Leaving this call will unshare your current project."),
 7168                        &["Yes, Join Channel", "Cancel"],
 7169                        cx,
 7170                    )
 7171                })?
 7172                .await;
 7173
 7174            if answer == Ok(1) {
 7175                return Ok(false);
 7176            }
 7177        } else {
 7178            return Ok(false); // unreachable!() hopefully
 7179        }
 7180    }
 7181
 7182    let client = cx.update(|cx| active_call.read(cx).client())?;
 7183
 7184    let mut client_status = client.status();
 7185
 7186    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7187    'outer: loop {
 7188        let Some(status) = client_status.recv().await else {
 7189            anyhow::bail!("error connecting");
 7190        };
 7191
 7192        match status {
 7193            Status::Connecting
 7194            | Status::Authenticating
 7195            | Status::Authenticated
 7196            | Status::Reconnecting
 7197            | Status::Reauthenticating
 7198            | Status::Reauthenticated => continue,
 7199            Status::Connected { .. } => break 'outer,
 7200            Status::SignedOut | Status::AuthenticationError => {
 7201                return Err(ErrorCode::SignedOut.into());
 7202            }
 7203            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7204            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7205                return Err(ErrorCode::Disconnected.into());
 7206            }
 7207        }
 7208    }
 7209
 7210    let room = active_call
 7211        .update(cx, |active_call, cx| {
 7212            active_call.join_channel(channel_id, cx)
 7213        })?
 7214        .await?;
 7215
 7216    let Some(room) = room else {
 7217        return anyhow::Ok(true);
 7218    };
 7219
 7220    room.update(cx, |room, _| room.room_update_completed())?
 7221        .await;
 7222
 7223    let task = room.update(cx, |room, cx| {
 7224        if let Some((project, host)) = room.most_active_project(cx) {
 7225            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7226        }
 7227
 7228        // If you are the first to join a channel, see if you should share your project.
 7229        if room.remote_participants().is_empty()
 7230            && !room.local_participant_is_guest()
 7231            && let Some(workspace) = requesting_window
 7232        {
 7233            let project = workspace.update(cx, |workspace, _, cx| {
 7234                let project = workspace.project.read(cx);
 7235
 7236                if !CallSettings::get_global(cx).share_on_join {
 7237                    return None;
 7238                }
 7239
 7240                if (project.is_local() || project.is_via_remote_server())
 7241                    && project.visible_worktrees(cx).any(|tree| {
 7242                        tree.read(cx)
 7243                            .root_entry()
 7244                            .is_some_and(|entry| entry.is_dir())
 7245                    })
 7246                {
 7247                    Some(workspace.project.clone())
 7248                } else {
 7249                    None
 7250                }
 7251            });
 7252            if let Ok(Some(project)) = project {
 7253                return Some(cx.spawn(async move |room, cx| {
 7254                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7255                        .await?;
 7256                    Ok(())
 7257                }));
 7258            }
 7259        }
 7260
 7261        None
 7262    })?;
 7263    if let Some(task) = task {
 7264        task.await?;
 7265        return anyhow::Ok(true);
 7266    }
 7267    anyhow::Ok(false)
 7268}
 7269
 7270pub fn join_channel(
 7271    channel_id: ChannelId,
 7272    app_state: Arc<AppState>,
 7273    requesting_window: Option<WindowHandle<Workspace>>,
 7274    cx: &mut App,
 7275) -> Task<Result<()>> {
 7276    let active_call = ActiveCall::global(cx);
 7277    cx.spawn(async move |cx| {
 7278        let result = join_channel_internal(
 7279            channel_id,
 7280            &app_state,
 7281            requesting_window,
 7282            &active_call,
 7283             cx,
 7284        )
 7285            .await;
 7286
 7287        // join channel succeeded, and opened a window
 7288        if matches!(result, Ok(true)) {
 7289            return anyhow::Ok(());
 7290        }
 7291
 7292        // find an existing workspace to focus and show call controls
 7293        let mut active_window =
 7294            requesting_window.or_else(|| activate_any_workspace_window( cx));
 7295        if active_window.is_none() {
 7296            // no open workspaces, make one to show the error in (blergh)
 7297            let (window_handle, _) = cx
 7298                .update(|cx| {
 7299                    Workspace::new_local(vec![], app_state.clone(), requesting_window, None, cx)
 7300                })?
 7301                .await?;
 7302
 7303            if result.is_ok() {
 7304                cx.update(|cx| {
 7305                    cx.dispatch_action(&OpenChannelNotes);
 7306                }).log_err();
 7307            }
 7308
 7309            active_window = Some(window_handle);
 7310        }
 7311
 7312        if let Err(err) = result {
 7313            log::error!("failed to join channel: {}", err);
 7314            if let Some(active_window) = active_window {
 7315                active_window
 7316                    .update(cx, |_, window, cx| {
 7317                        let detail: SharedString = match err.error_code() {
 7318                            ErrorCode::SignedOut => {
 7319                                "Please sign in to continue.".into()
 7320                            }
 7321                            ErrorCode::UpgradeRequired => {
 7322                                "Your are running an unsupported version of Zed. Please update to continue.".into()
 7323                            }
 7324                            ErrorCode::NoSuchChannel => {
 7325                                "No matching channel was found. Please check the link and try again.".into()
 7326                            }
 7327                            ErrorCode::Forbidden => {
 7328                                "This channel is private, and you do not have access. Please ask someone to add you and try again.".into()
 7329                            }
 7330                            ErrorCode::Disconnected => "Please check your internet connection and try again.".into(),
 7331                            _ => format!("{}\n\nPlease try again.", err).into(),
 7332                        };
 7333                        window.prompt(
 7334                            PromptLevel::Critical,
 7335                            "Failed to join channel",
 7336                            Some(&detail),
 7337                            &["Ok"],
 7338                        cx)
 7339                    })?
 7340                    .await
 7341                    .ok();
 7342            }
 7343        }
 7344
 7345        // return ok, we showed the error to the user.
 7346        anyhow::Ok(())
 7347    })
 7348}
 7349
 7350pub async fn get_any_active_workspace(
 7351    app_state: Arc<AppState>,
 7352    mut cx: AsyncApp,
 7353) -> anyhow::Result<WindowHandle<Workspace>> {
 7354    // find an existing workspace to focus and show call controls
 7355    let active_window = activate_any_workspace_window(&mut cx);
 7356    if active_window.is_none() {
 7357        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, cx))?
 7358            .await?;
 7359    }
 7360    activate_any_workspace_window(&mut cx).context("could not open zed")
 7361}
 7362
 7363fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7364    cx.update(|cx| {
 7365        if let Some(workspace_window) = cx
 7366            .active_window()
 7367            .and_then(|window| window.downcast::<Workspace>())
 7368        {
 7369            return Some(workspace_window);
 7370        }
 7371
 7372        for window in cx.windows() {
 7373            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7374                workspace_window
 7375                    .update(cx, |_, window, _| window.activate_window())
 7376                    .ok();
 7377                return Some(workspace_window);
 7378            }
 7379        }
 7380        None
 7381    })
 7382    .ok()
 7383    .flatten()
 7384}
 7385
 7386pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7387    cx.windows()
 7388        .into_iter()
 7389        .filter_map(|window| window.downcast::<Workspace>())
 7390        .filter(|workspace| {
 7391            workspace
 7392                .read(cx)
 7393                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7394        })
 7395        .collect()
 7396}
 7397
 7398#[derive(Default)]
 7399pub struct OpenOptions {
 7400    pub visible: Option<OpenVisible>,
 7401    pub focus: Option<bool>,
 7402    pub open_new_workspace: Option<bool>,
 7403    pub prefer_focused_window: bool,
 7404    pub replace_window: Option<WindowHandle<Workspace>>,
 7405    pub env: Option<HashMap<String, String>>,
 7406}
 7407
 7408#[allow(clippy::type_complexity)]
 7409pub fn open_paths(
 7410    abs_paths: &[PathBuf],
 7411    app_state: Arc<AppState>,
 7412    open_options: OpenOptions,
 7413    cx: &mut App,
 7414) -> Task<
 7415    anyhow::Result<(
 7416        WindowHandle<Workspace>,
 7417        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7418    )>,
 7419> {
 7420    let abs_paths = abs_paths.to_vec();
 7421    let mut existing = None;
 7422    let mut best_match = None;
 7423    let mut open_visible = OpenVisible::All;
 7424    #[cfg(target_os = "windows")]
 7425    let wsl_path = abs_paths
 7426        .iter()
 7427        .find_map(|p| util::paths::WslPath::from_path(p));
 7428
 7429    cx.spawn(async move |cx| {
 7430        if open_options.open_new_workspace != Some(true) {
 7431            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7432            let all_metadatas = futures::future::join_all(all_paths)
 7433                .await
 7434                .into_iter()
 7435                .filter_map(|result| result.ok().flatten())
 7436                .collect::<Vec<_>>();
 7437
 7438            cx.update(|cx| {
 7439                for window in local_workspace_windows(cx) {
 7440                    if let Ok(workspace) = window.read(cx) {
 7441                        let m = workspace.project.read(cx).visibility_for_paths(
 7442                            &abs_paths,
 7443                            &all_metadatas,
 7444                            open_options.open_new_workspace == None,
 7445                            cx,
 7446                        );
 7447                        if m > best_match {
 7448                            existing = Some(window);
 7449                            best_match = m;
 7450                        } else if best_match.is_none()
 7451                            && open_options.open_new_workspace == Some(false)
 7452                        {
 7453                            existing = Some(window)
 7454                        }
 7455                    }
 7456                }
 7457            })?;
 7458
 7459            if open_options.open_new_workspace.is_none()
 7460                && (existing.is_none() || open_options.prefer_focused_window)
 7461                && all_metadatas.iter().all(|file| !file.is_dir)
 7462            {
 7463                cx.update(|cx| {
 7464                    if let Some(window) = cx
 7465                        .active_window()
 7466                        .and_then(|window| window.downcast::<Workspace>())
 7467                        && let Ok(workspace) = window.read(cx)
 7468                    {
 7469                        let project = workspace.project().read(cx);
 7470                        if project.is_local() && !project.is_via_collab() {
 7471                            existing = Some(window);
 7472                            open_visible = OpenVisible::None;
 7473                            return;
 7474                        }
 7475                    }
 7476                    for window in local_workspace_windows(cx) {
 7477                        if let Ok(workspace) = window.read(cx) {
 7478                            let project = workspace.project().read(cx);
 7479                            if project.is_via_collab() {
 7480                                continue;
 7481                            }
 7482                            existing = Some(window);
 7483                            open_visible = OpenVisible::None;
 7484                            break;
 7485                        }
 7486                    }
 7487                })?;
 7488            }
 7489        }
 7490
 7491        let result = if let Some(existing) = existing {
 7492            let open_task = existing
 7493                .update(cx, |workspace, window, cx| {
 7494                    window.activate_window();
 7495                    workspace.open_paths(
 7496                        abs_paths,
 7497                        OpenOptions {
 7498                            visible: Some(open_visible),
 7499                            ..Default::default()
 7500                        },
 7501                        None,
 7502                        window,
 7503                        cx,
 7504                    )
 7505                })?
 7506                .await;
 7507
 7508            _ = existing.update(cx, |workspace, _, cx| {
 7509                for item in open_task.iter().flatten() {
 7510                    if let Err(e) = item {
 7511                        workspace.show_error(&e, cx);
 7512                    }
 7513                }
 7514            });
 7515
 7516            Ok((existing, open_task))
 7517        } else {
 7518            cx.update(move |cx| {
 7519                Workspace::new_local(
 7520                    abs_paths,
 7521                    app_state.clone(),
 7522                    open_options.replace_window,
 7523                    open_options.env,
 7524                    cx,
 7525                )
 7526            })?
 7527            .await
 7528        };
 7529
 7530        #[cfg(target_os = "windows")]
 7531        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 7532            && let Ok((workspace, _)) = &result
 7533        {
 7534            workspace
 7535                .update(cx, move |workspace, _window, cx| {
 7536                    struct OpenInWsl;
 7537                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 7538                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 7539                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 7540                        cx.new(move |cx| {
 7541                            MessageNotification::new(msg, cx)
 7542                                .primary_message("Open in WSL")
 7543                                .primary_icon(IconName::FolderOpen)
 7544                                .primary_on_click(move |window, cx| {
 7545                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 7546                                            distro: remote::WslConnectionOptions {
 7547                                                    distro_name: distro.clone(),
 7548                                                user: None,
 7549                                            },
 7550                                            paths: vec![path.clone().into()],
 7551                                        }), cx)
 7552                                })
 7553                        })
 7554                    });
 7555                })
 7556                .unwrap();
 7557        };
 7558        result
 7559    })
 7560}
 7561
 7562pub fn open_new(
 7563    open_options: OpenOptions,
 7564    app_state: Arc<AppState>,
 7565    cx: &mut App,
 7566    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 7567) -> Task<anyhow::Result<()>> {
 7568    let task = Workspace::new_local(Vec::new(), app_state, None, open_options.env, cx);
 7569    cx.spawn(async move |cx| {
 7570        let (workspace, opened_paths) = task.await?;
 7571        workspace.update(cx, |workspace, window, cx| {
 7572            if opened_paths.is_empty() {
 7573                init(workspace, window, cx)
 7574            }
 7575        })?;
 7576        Ok(())
 7577    })
 7578}
 7579
 7580pub fn create_and_open_local_file(
 7581    path: &'static Path,
 7582    window: &mut Window,
 7583    cx: &mut Context<Workspace>,
 7584    default_content: impl 'static + Send + FnOnce(&mut AsyncApp) -> Rope,
 7585) -> Task<Result<Box<dyn ItemHandle>>> {
 7586    cx.spawn_in(window, async move |workspace, cx| {
 7587        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 7588        if !fs.is_file(path).await {
 7589            fs.create_file(path, Default::default()).await?;
 7590            fs.save(path, &default_content(cx), Default::default())
 7591                .await?;
 7592        }
 7593
 7594        let mut items = workspace
 7595            .update_in(cx, |workspace, window, cx| {
 7596                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 7597                    workspace.open_paths(
 7598                        vec![path.to_path_buf()],
 7599                        OpenOptions {
 7600                            visible: Some(OpenVisible::None),
 7601                            ..Default::default()
 7602                        },
 7603                        None,
 7604                        window,
 7605                        cx,
 7606                    )
 7607                })
 7608            })?
 7609            .await?
 7610            .await;
 7611
 7612        let item = items.pop().flatten();
 7613        item.with_context(|| format!("path {path:?} is not a file"))?
 7614    })
 7615}
 7616
 7617pub fn open_remote_project_with_new_connection(
 7618    window: WindowHandle<Workspace>,
 7619    remote_connection: Arc<dyn RemoteConnection>,
 7620    cancel_rx: oneshot::Receiver<()>,
 7621    delegate: Arc<dyn RemoteClientDelegate>,
 7622    app_state: Arc<AppState>,
 7623    paths: Vec<PathBuf>,
 7624    cx: &mut App,
 7625) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 7626    cx.spawn(async move |cx| {
 7627        let (workspace_id, serialized_workspace) =
 7628            serialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 7629                .await?;
 7630
 7631        let session = match cx
 7632            .update(|cx| {
 7633                remote::RemoteClient::new(
 7634                    ConnectionIdentifier::Workspace(workspace_id.0),
 7635                    remote_connection,
 7636                    cancel_rx,
 7637                    delegate,
 7638                    cx,
 7639                )
 7640            })?
 7641            .await?
 7642        {
 7643            Some(result) => result,
 7644            None => return Ok(Vec::new()),
 7645        };
 7646
 7647        let project = cx.update(|cx| {
 7648            project::Project::remote(
 7649                session,
 7650                app_state.client.clone(),
 7651                app_state.node_runtime.clone(),
 7652                app_state.user_store.clone(),
 7653                app_state.languages.clone(),
 7654                app_state.fs.clone(),
 7655                cx,
 7656            )
 7657        })?;
 7658
 7659        open_remote_project_inner(
 7660            project,
 7661            paths,
 7662            workspace_id,
 7663            serialized_workspace,
 7664            app_state,
 7665            window,
 7666            cx,
 7667        )
 7668        .await
 7669    })
 7670}
 7671
 7672pub fn open_remote_project_with_existing_connection(
 7673    connection_options: RemoteConnectionOptions,
 7674    project: Entity<Project>,
 7675    paths: Vec<PathBuf>,
 7676    app_state: Arc<AppState>,
 7677    window: WindowHandle<Workspace>,
 7678    cx: &mut AsyncApp,
 7679) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 7680    cx.spawn(async move |cx| {
 7681        let (workspace_id, serialized_workspace) =
 7682            serialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 7683
 7684        open_remote_project_inner(
 7685            project,
 7686            paths,
 7687            workspace_id,
 7688            serialized_workspace,
 7689            app_state,
 7690            window,
 7691            cx,
 7692        )
 7693        .await
 7694    })
 7695}
 7696
 7697async fn open_remote_project_inner(
 7698    project: Entity<Project>,
 7699    paths: Vec<PathBuf>,
 7700    workspace_id: WorkspaceId,
 7701    serialized_workspace: Option<SerializedWorkspace>,
 7702    app_state: Arc<AppState>,
 7703    window: WindowHandle<Workspace>,
 7704    cx: &mut AsyncApp,
 7705) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 7706    let toolchains = DB.toolchains(workspace_id).await?;
 7707    for (toolchain, worktree_id, path) in toolchains {
 7708        project
 7709            .update(cx, |this, cx| {
 7710                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 7711            })?
 7712            .await;
 7713    }
 7714    let mut project_paths_to_open = vec![];
 7715    let mut project_path_errors = vec![];
 7716
 7717    for path in paths {
 7718        let result = cx
 7719            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 7720            .await;
 7721        match result {
 7722            Ok((_, project_path)) => {
 7723                project_paths_to_open.push((path.clone(), Some(project_path)));
 7724            }
 7725            Err(error) => {
 7726                project_path_errors.push(error);
 7727            }
 7728        };
 7729    }
 7730
 7731    if project_paths_to_open.is_empty() {
 7732        return Err(project_path_errors.pop().context("no paths given")?);
 7733    }
 7734
 7735    if let Some(detach_session_task) = window
 7736        .update(cx, |_workspace, window, cx| {
 7737            cx.spawn_in(window, async move |this, cx| {
 7738                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 7739            })
 7740        })
 7741        .ok()
 7742    {
 7743        detach_session_task.await.ok();
 7744    }
 7745
 7746    cx.update_window(window.into(), |_, window, cx| {
 7747        window.replace_root(cx, |window, cx| {
 7748            telemetry::event!("SSH Project Opened");
 7749
 7750            let mut workspace =
 7751                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 7752            workspace.update_history(cx);
 7753
 7754            if let Some(ref serialized) = serialized_workspace {
 7755                workspace.centered_layout = serialized.centered_layout;
 7756            }
 7757
 7758            workspace
 7759        });
 7760    })?;
 7761
 7762    let items = window
 7763        .update(cx, |_, window, cx| {
 7764            window.activate_window();
 7765            open_items(serialized_workspace, project_paths_to_open, window, cx)
 7766        })?
 7767        .await?;
 7768
 7769    window.update(cx, |workspace, _, cx| {
 7770        for error in project_path_errors {
 7771            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 7772                if let Some(path) = error.error_tag("path") {
 7773                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 7774                }
 7775            } else {
 7776                workspace.show_error(&error, cx)
 7777            }
 7778        }
 7779    })?;
 7780
 7781    Ok(items.into_iter().map(|item| item?.ok()).collect())
 7782}
 7783
 7784fn serialize_remote_project(
 7785    connection_options: RemoteConnectionOptions,
 7786    paths: Vec<PathBuf>,
 7787    cx: &AsyncApp,
 7788) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 7789    cx.background_spawn(async move {
 7790        let remote_connection_id = persistence::DB
 7791            .get_or_create_remote_connection(connection_options)
 7792            .await?;
 7793
 7794        let serialized_workspace =
 7795            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 7796
 7797        let workspace_id = if let Some(workspace_id) =
 7798            serialized_workspace.as_ref().map(|workspace| workspace.id)
 7799        {
 7800            workspace_id
 7801        } else {
 7802            persistence::DB.next_id().await?
 7803        };
 7804
 7805        Ok((workspace_id, serialized_workspace))
 7806    })
 7807}
 7808
 7809pub fn join_in_room_project(
 7810    project_id: u64,
 7811    follow_user_id: u64,
 7812    app_state: Arc<AppState>,
 7813    cx: &mut App,
 7814) -> Task<Result<()>> {
 7815    let windows = cx.windows();
 7816    cx.spawn(async move |cx| {
 7817        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 7818            window_handle
 7819                .downcast::<Workspace>()
 7820                .and_then(|window_handle| {
 7821                    window_handle
 7822                        .update(cx, |workspace, _window, cx| {
 7823                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 7824                                Some(window_handle)
 7825                            } else {
 7826                                None
 7827                            }
 7828                        })
 7829                        .unwrap_or(None)
 7830                })
 7831        });
 7832
 7833        let workspace = if let Some(existing_workspace) = existing_workspace {
 7834            existing_workspace
 7835        } else {
 7836            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 7837            let room = active_call
 7838                .read_with(cx, |call, _| call.room().cloned())?
 7839                .context("not in a call")?;
 7840            let project = room
 7841                .update(cx, |room, cx| {
 7842                    room.join_project(
 7843                        project_id,
 7844                        app_state.languages.clone(),
 7845                        app_state.fs.clone(),
 7846                        cx,
 7847                    )
 7848                })?
 7849                .await?;
 7850
 7851            let window_bounds_override = window_bounds_env_override();
 7852            cx.update(|cx| {
 7853                let mut options = (app_state.build_window_options)(None, cx);
 7854                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 7855                cx.open_window(options, |window, cx| {
 7856                    cx.new(|cx| {
 7857                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 7858                    })
 7859                })
 7860            })??
 7861        };
 7862
 7863        workspace.update(cx, |workspace, window, cx| {
 7864            cx.activate(true);
 7865            window.activate_window();
 7866
 7867            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 7868                let follow_peer_id = room
 7869                    .read(cx)
 7870                    .remote_participants()
 7871                    .iter()
 7872                    .find(|(_, participant)| participant.user.id == follow_user_id)
 7873                    .map(|(_, p)| p.peer_id)
 7874                    .or_else(|| {
 7875                        // If we couldn't follow the given user, follow the host instead.
 7876                        let collaborator = workspace
 7877                            .project()
 7878                            .read(cx)
 7879                            .collaborators()
 7880                            .values()
 7881                            .find(|collaborator| collaborator.is_host)?;
 7882                        Some(collaborator.peer_id)
 7883                    });
 7884
 7885                if let Some(follow_peer_id) = follow_peer_id {
 7886                    workspace.follow(follow_peer_id, window, cx);
 7887                }
 7888            }
 7889        })?;
 7890
 7891        anyhow::Ok(())
 7892    })
 7893}
 7894
 7895pub fn reload(cx: &mut App) {
 7896    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 7897    let mut workspace_windows = cx
 7898        .windows()
 7899        .into_iter()
 7900        .filter_map(|window| window.downcast::<Workspace>())
 7901        .collect::<Vec<_>>();
 7902
 7903    // If multiple windows have unsaved changes, and need a save prompt,
 7904    // prompt in the active window before switching to a different window.
 7905    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 7906
 7907    let mut prompt = None;
 7908    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 7909        prompt = window
 7910            .update(cx, |_, window, cx| {
 7911                window.prompt(
 7912                    PromptLevel::Info,
 7913                    "Are you sure you want to restart?",
 7914                    None,
 7915                    &["Restart", "Cancel"],
 7916                    cx,
 7917                )
 7918            })
 7919            .ok();
 7920    }
 7921
 7922    cx.spawn(async move |cx| {
 7923        if let Some(prompt) = prompt {
 7924            let answer = prompt.await?;
 7925            if answer != 0 {
 7926                return Ok(());
 7927            }
 7928        }
 7929
 7930        // If the user cancels any save prompt, then keep the app open.
 7931        for window in workspace_windows {
 7932            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 7933                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 7934            }) && !should_close.await?
 7935            {
 7936                return Ok(());
 7937            }
 7938        }
 7939        cx.update(|cx| cx.restart())
 7940    })
 7941    .detach_and_log_err(cx);
 7942}
 7943
 7944fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 7945    let mut parts = value.split(',');
 7946    let x: usize = parts.next()?.parse().ok()?;
 7947    let y: usize = parts.next()?.parse().ok()?;
 7948    Some(point(px(x as f32), px(y as f32)))
 7949}
 7950
 7951fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 7952    let mut parts = value.split(',');
 7953    let width: usize = parts.next()?.parse().ok()?;
 7954    let height: usize = parts.next()?.parse().ok()?;
 7955    Some(size(px(width as f32), px(height as f32)))
 7956}
 7957
 7958/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 7959pub fn client_side_decorations(
 7960    element: impl IntoElement,
 7961    window: &mut Window,
 7962    cx: &mut App,
 7963) -> Stateful<Div> {
 7964    const BORDER_SIZE: Pixels = px(1.0);
 7965    let decorations = window.window_decorations();
 7966
 7967    match decorations {
 7968        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 7969        Decorations::Server => window.set_client_inset(px(0.0)),
 7970    }
 7971
 7972    struct GlobalResizeEdge(ResizeEdge);
 7973    impl Global for GlobalResizeEdge {}
 7974
 7975    div()
 7976        .id("window-backdrop")
 7977        .bg(transparent_black())
 7978        .map(|div| match decorations {
 7979            Decorations::Server => div,
 7980            Decorations::Client { tiling, .. } => div
 7981                .when(!(tiling.top || tiling.right), |div| {
 7982                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7983                })
 7984                .when(!(tiling.top || tiling.left), |div| {
 7985                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7986                })
 7987                .when(!(tiling.bottom || tiling.right), |div| {
 7988                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7989                })
 7990                .when(!(tiling.bottom || tiling.left), |div| {
 7991                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7992                })
 7993                .when(!tiling.top, |div| {
 7994                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7995                })
 7996                .when(!tiling.bottom, |div| {
 7997                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7998                })
 7999                .when(!tiling.left, |div| {
 8000                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8001                })
 8002                .when(!tiling.right, |div| {
 8003                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8004                })
 8005                .on_mouse_move(move |e, window, cx| {
 8006                    let size = window.window_bounds().get_bounds().size;
 8007                    let pos = e.position;
 8008
 8009                    let new_edge =
 8010                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8011
 8012                    let edge = cx.try_global::<GlobalResizeEdge>();
 8013                    if new_edge != edge.map(|edge| edge.0) {
 8014                        window
 8015                            .window_handle()
 8016                            .update(cx, |workspace, _, cx| {
 8017                                cx.notify(workspace.entity_id());
 8018                            })
 8019                            .ok();
 8020                    }
 8021                })
 8022                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8023                    let size = window.window_bounds().get_bounds().size;
 8024                    let pos = e.position;
 8025
 8026                    let edge = match resize_edge(
 8027                        pos,
 8028                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8029                        size,
 8030                        tiling,
 8031                    ) {
 8032                        Some(value) => value,
 8033                        None => return,
 8034                    };
 8035
 8036                    window.start_window_resize(edge);
 8037                }),
 8038        })
 8039        .size_full()
 8040        .child(
 8041            div()
 8042                .cursor(CursorStyle::Arrow)
 8043                .map(|div| match decorations {
 8044                    Decorations::Server => div,
 8045                    Decorations::Client { tiling } => div
 8046                        .border_color(cx.theme().colors().border)
 8047                        .when(!(tiling.top || tiling.right), |div| {
 8048                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8049                        })
 8050                        .when(!(tiling.top || tiling.left), |div| {
 8051                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8052                        })
 8053                        .when(!(tiling.bottom || tiling.right), |div| {
 8054                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8055                        })
 8056                        .when(!(tiling.bottom || tiling.left), |div| {
 8057                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8058                        })
 8059                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8060                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8061                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8062                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8063                        .when(!tiling.is_tiled(), |div| {
 8064                            div.shadow(vec![gpui::BoxShadow {
 8065                                color: Hsla {
 8066                                    h: 0.,
 8067                                    s: 0.,
 8068                                    l: 0.,
 8069                                    a: 0.4,
 8070                                },
 8071                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8072                                spread_radius: px(0.),
 8073                                offset: point(px(0.0), px(0.0)),
 8074                            }])
 8075                        }),
 8076                })
 8077                .on_mouse_move(|_e, _, cx| {
 8078                    cx.stop_propagation();
 8079                })
 8080                .size_full()
 8081                .child(element),
 8082        )
 8083        .map(|div| match decorations {
 8084            Decorations::Server => div,
 8085            Decorations::Client { tiling, .. } => div.child(
 8086                canvas(
 8087                    |_bounds, window, _| {
 8088                        window.insert_hitbox(
 8089                            Bounds::new(
 8090                                point(px(0.0), px(0.0)),
 8091                                window.window_bounds().get_bounds().size,
 8092                            ),
 8093                            HitboxBehavior::Normal,
 8094                        )
 8095                    },
 8096                    move |_bounds, hitbox, window, cx| {
 8097                        let mouse = window.mouse_position();
 8098                        let size = window.window_bounds().get_bounds().size;
 8099                        let Some(edge) =
 8100                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8101                        else {
 8102                            return;
 8103                        };
 8104                        cx.set_global(GlobalResizeEdge(edge));
 8105                        window.set_cursor_style(
 8106                            match edge {
 8107                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8108                                ResizeEdge::Left | ResizeEdge::Right => {
 8109                                    CursorStyle::ResizeLeftRight
 8110                                }
 8111                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8112                                    CursorStyle::ResizeUpLeftDownRight
 8113                                }
 8114                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8115                                    CursorStyle::ResizeUpRightDownLeft
 8116                                }
 8117                            },
 8118                            &hitbox,
 8119                        );
 8120                    },
 8121                )
 8122                .size_full()
 8123                .absolute(),
 8124            ),
 8125        })
 8126}
 8127
 8128fn resize_edge(
 8129    pos: Point<Pixels>,
 8130    shadow_size: Pixels,
 8131    window_size: Size<Pixels>,
 8132    tiling: Tiling,
 8133) -> Option<ResizeEdge> {
 8134    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8135    if bounds.contains(&pos) {
 8136        return None;
 8137    }
 8138
 8139    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8140    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8141    if !tiling.top && top_left_bounds.contains(&pos) {
 8142        return Some(ResizeEdge::TopLeft);
 8143    }
 8144
 8145    let top_right_bounds = Bounds::new(
 8146        Point::new(window_size.width - corner_size.width, px(0.)),
 8147        corner_size,
 8148    );
 8149    if !tiling.top && top_right_bounds.contains(&pos) {
 8150        return Some(ResizeEdge::TopRight);
 8151    }
 8152
 8153    let bottom_left_bounds = Bounds::new(
 8154        Point::new(px(0.), window_size.height - corner_size.height),
 8155        corner_size,
 8156    );
 8157    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8158        return Some(ResizeEdge::BottomLeft);
 8159    }
 8160
 8161    let bottom_right_bounds = Bounds::new(
 8162        Point::new(
 8163            window_size.width - corner_size.width,
 8164            window_size.height - corner_size.height,
 8165        ),
 8166        corner_size,
 8167    );
 8168    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8169        return Some(ResizeEdge::BottomRight);
 8170    }
 8171
 8172    if !tiling.top && pos.y < shadow_size {
 8173        Some(ResizeEdge::Top)
 8174    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8175        Some(ResizeEdge::Bottom)
 8176    } else if !tiling.left && pos.x < shadow_size {
 8177        Some(ResizeEdge::Left)
 8178    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8179        Some(ResizeEdge::Right)
 8180    } else {
 8181        None
 8182    }
 8183}
 8184
 8185fn join_pane_into_active(
 8186    active_pane: &Entity<Pane>,
 8187    pane: &Entity<Pane>,
 8188    window: &mut Window,
 8189    cx: &mut App,
 8190) {
 8191    if pane == active_pane {
 8192    } else if pane.read(cx).items_len() == 0 {
 8193        pane.update(cx, |_, cx| {
 8194            cx.emit(pane::Event::Remove {
 8195                focus_on_pane: None,
 8196            });
 8197        })
 8198    } else {
 8199        move_all_items(pane, active_pane, window, cx);
 8200    }
 8201}
 8202
 8203fn move_all_items(
 8204    from_pane: &Entity<Pane>,
 8205    to_pane: &Entity<Pane>,
 8206    window: &mut Window,
 8207    cx: &mut App,
 8208) {
 8209    let destination_is_different = from_pane != to_pane;
 8210    let mut moved_items = 0;
 8211    for (item_ix, item_handle) in from_pane
 8212        .read(cx)
 8213        .items()
 8214        .enumerate()
 8215        .map(|(ix, item)| (ix, item.clone()))
 8216        .collect::<Vec<_>>()
 8217    {
 8218        let ix = item_ix - moved_items;
 8219        if destination_is_different {
 8220            // Close item from previous pane
 8221            from_pane.update(cx, |source, cx| {
 8222                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8223            });
 8224            moved_items += 1;
 8225        }
 8226
 8227        // This automatically removes duplicate items in the pane
 8228        to_pane.update(cx, |destination, cx| {
 8229            destination.add_item(item_handle, true, true, None, window, cx);
 8230            window.focus(&destination.focus_handle(cx))
 8231        });
 8232    }
 8233}
 8234
 8235pub fn move_item(
 8236    source: &Entity<Pane>,
 8237    destination: &Entity<Pane>,
 8238    item_id_to_move: EntityId,
 8239    destination_index: usize,
 8240    activate: bool,
 8241    window: &mut Window,
 8242    cx: &mut App,
 8243) {
 8244    let Some((item_ix, item_handle)) = source
 8245        .read(cx)
 8246        .items()
 8247        .enumerate()
 8248        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8249        .map(|(ix, item)| (ix, item.clone()))
 8250    else {
 8251        // Tab was closed during drag
 8252        return;
 8253    };
 8254
 8255    if source != destination {
 8256        // Close item from previous pane
 8257        source.update(cx, |source, cx| {
 8258            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8259        });
 8260    }
 8261
 8262    // This automatically removes duplicate items in the pane
 8263    destination.update(cx, |destination, cx| {
 8264        destination.add_item_inner(
 8265            item_handle,
 8266            activate,
 8267            activate,
 8268            activate,
 8269            Some(destination_index),
 8270            window,
 8271            cx,
 8272        );
 8273        if activate {
 8274            window.focus(&destination.focus_handle(cx))
 8275        }
 8276    });
 8277}
 8278
 8279pub fn move_active_item(
 8280    source: &Entity<Pane>,
 8281    destination: &Entity<Pane>,
 8282    focus_destination: bool,
 8283    close_if_empty: bool,
 8284    window: &mut Window,
 8285    cx: &mut App,
 8286) {
 8287    if source == destination {
 8288        return;
 8289    }
 8290    let Some(active_item) = source.read(cx).active_item() else {
 8291        return;
 8292    };
 8293    source.update(cx, |source_pane, cx| {
 8294        let item_id = active_item.item_id();
 8295        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8296        destination.update(cx, |target_pane, cx| {
 8297            target_pane.add_item(
 8298                active_item,
 8299                focus_destination,
 8300                focus_destination,
 8301                Some(target_pane.items_len()),
 8302                window,
 8303                cx,
 8304            );
 8305        });
 8306    });
 8307}
 8308
 8309pub fn clone_active_item(
 8310    workspace_id: Option<WorkspaceId>,
 8311    source: &Entity<Pane>,
 8312    destination: &Entity<Pane>,
 8313    focus_destination: bool,
 8314    window: &mut Window,
 8315    cx: &mut App,
 8316) {
 8317    if source == destination {
 8318        return;
 8319    }
 8320    let Some(active_item) = source.read(cx).active_item() else {
 8321        return;
 8322    };
 8323    if !active_item.can_split(cx) {
 8324        return;
 8325    }
 8326    let destination = destination.downgrade();
 8327    let task = active_item.clone_on_split(workspace_id, window, cx);
 8328    window
 8329        .spawn(cx, async move |cx| {
 8330            let Some(clone) = task.await else {
 8331                return;
 8332            };
 8333            destination
 8334                .update_in(cx, |target_pane, window, cx| {
 8335                    target_pane.add_item(
 8336                        clone,
 8337                        focus_destination,
 8338                        focus_destination,
 8339                        Some(target_pane.items_len()),
 8340                        window,
 8341                        cx,
 8342                    );
 8343                })
 8344                .log_err();
 8345        })
 8346        .detach();
 8347}
 8348
 8349#[derive(Debug)]
 8350pub struct WorkspacePosition {
 8351    pub window_bounds: Option<WindowBounds>,
 8352    pub display: Option<Uuid>,
 8353    pub centered_layout: bool,
 8354}
 8355
 8356pub fn remote_workspace_position_from_db(
 8357    connection_options: RemoteConnectionOptions,
 8358    paths_to_open: &[PathBuf],
 8359    cx: &App,
 8360) -> Task<Result<WorkspacePosition>> {
 8361    let paths = paths_to_open.to_vec();
 8362
 8363    cx.background_spawn(async move {
 8364        let remote_connection_id = persistence::DB
 8365            .get_or_create_remote_connection(connection_options)
 8366            .await
 8367            .context("fetching serialized ssh project")?;
 8368        let serialized_workspace =
 8369            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8370
 8371        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8372            (Some(WindowBounds::Windowed(bounds)), None)
 8373        } else {
 8374            let restorable_bounds = serialized_workspace
 8375                .as_ref()
 8376                .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 8377                .or_else(|| {
 8378                    let (display, window_bounds) = DB.last_window().log_err()?;
 8379                    Some((display?, window_bounds?))
 8380                });
 8381
 8382            if let Some((serialized_display, serialized_status)) = restorable_bounds {
 8383                (Some(serialized_status.0), Some(serialized_display))
 8384            } else {
 8385                (None, None)
 8386            }
 8387        };
 8388
 8389        let centered_layout = serialized_workspace
 8390            .as_ref()
 8391            .map(|w| w.centered_layout)
 8392            .unwrap_or(false);
 8393
 8394        Ok(WorkspacePosition {
 8395            window_bounds,
 8396            display,
 8397            centered_layout,
 8398        })
 8399    })
 8400}
 8401
 8402pub fn with_active_or_new_workspace(
 8403    cx: &mut App,
 8404    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8405) {
 8406    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8407        Some(workspace) => {
 8408            cx.defer(move |cx| {
 8409                workspace
 8410                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8411                    .log_err();
 8412            });
 8413        }
 8414        None => {
 8415            let app_state = AppState::global(cx);
 8416            if let Some(app_state) = app_state.upgrade() {
 8417                open_new(
 8418                    OpenOptions::default(),
 8419                    app_state,
 8420                    cx,
 8421                    move |workspace, window, cx| f(workspace, window, cx),
 8422                )
 8423                .detach_and_log_err(cx);
 8424            }
 8425        }
 8426    }
 8427}
 8428
 8429#[cfg(test)]
 8430mod tests {
 8431    use std::{cell::RefCell, rc::Rc};
 8432
 8433    use super::*;
 8434    use crate::{
 8435        dock::{PanelEvent, test::TestPanel},
 8436        item::{
 8437            ItemBufferKind, ItemEvent,
 8438            test::{TestItem, TestProjectItem},
 8439        },
 8440    };
 8441    use fs::FakeFs;
 8442    use gpui::{
 8443        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8444        UpdateGlobal, VisualTestContext, px,
 8445    };
 8446    use project::{Project, ProjectEntryId};
 8447    use serde_json::json;
 8448    use settings::SettingsStore;
 8449    use util::rel_path::rel_path;
 8450
 8451    #[gpui::test]
 8452    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8453        init_test(cx);
 8454
 8455        let fs = FakeFs::new(cx.executor());
 8456        let project = Project::test(fs, [], cx).await;
 8457        let (workspace, cx) =
 8458            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8459
 8460        // Adding an item with no ambiguity renders the tab without detail.
 8461        let item1 = cx.new(|cx| {
 8462            let mut item = TestItem::new(cx);
 8463            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 8464            item
 8465        });
 8466        workspace.update_in(cx, |workspace, window, cx| {
 8467            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8468        });
 8469        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 8470
 8471        // Adding an item that creates ambiguity increases the level of detail on
 8472        // both tabs.
 8473        let item2 = cx.new_window_entity(|_window, cx| {
 8474            let mut item = TestItem::new(cx);
 8475            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8476            item
 8477        });
 8478        workspace.update_in(cx, |workspace, window, cx| {
 8479            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8480        });
 8481        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8482        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8483
 8484        // Adding an item that creates ambiguity increases the level of detail only
 8485        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 8486        // we stop at the highest detail available.
 8487        let item3 = cx.new(|cx| {
 8488            let mut item = TestItem::new(cx);
 8489            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8490            item
 8491        });
 8492        workspace.update_in(cx, |workspace, window, cx| {
 8493            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8494        });
 8495        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8496        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8497        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8498    }
 8499
 8500    #[gpui::test]
 8501    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 8502        init_test(cx);
 8503
 8504        let fs = FakeFs::new(cx.executor());
 8505        fs.insert_tree(
 8506            "/root1",
 8507            json!({
 8508                "one.txt": "",
 8509                "two.txt": "",
 8510            }),
 8511        )
 8512        .await;
 8513        fs.insert_tree(
 8514            "/root2",
 8515            json!({
 8516                "three.txt": "",
 8517            }),
 8518        )
 8519        .await;
 8520
 8521        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 8522        let (workspace, cx) =
 8523            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8524        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8525        let worktree_id = project.update(cx, |project, cx| {
 8526            project.worktrees(cx).next().unwrap().read(cx).id()
 8527        });
 8528
 8529        let item1 = cx.new(|cx| {
 8530            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 8531        });
 8532        let item2 = cx.new(|cx| {
 8533            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 8534        });
 8535
 8536        // Add an item to an empty pane
 8537        workspace.update_in(cx, |workspace, window, cx| {
 8538            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 8539        });
 8540        project.update(cx, |project, cx| {
 8541            assert_eq!(
 8542                project.active_entry(),
 8543                project
 8544                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 8545                    .map(|e| e.id)
 8546            );
 8547        });
 8548        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8549
 8550        // Add a second item to a non-empty pane
 8551        workspace.update_in(cx, |workspace, window, cx| {
 8552            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 8553        });
 8554        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 8555        project.update(cx, |project, cx| {
 8556            assert_eq!(
 8557                project.active_entry(),
 8558                project
 8559                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 8560                    .map(|e| e.id)
 8561            );
 8562        });
 8563
 8564        // Close the active item
 8565        pane.update_in(cx, |pane, window, cx| {
 8566            pane.close_active_item(&Default::default(), window, cx)
 8567        })
 8568        .await
 8569        .unwrap();
 8570        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8571        project.update(cx, |project, cx| {
 8572            assert_eq!(
 8573                project.active_entry(),
 8574                project
 8575                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 8576                    .map(|e| e.id)
 8577            );
 8578        });
 8579
 8580        // Add a project folder
 8581        project
 8582            .update(cx, |project, cx| {
 8583                project.find_or_create_worktree("root2", true, cx)
 8584            })
 8585            .await
 8586            .unwrap();
 8587        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 8588
 8589        // Remove a project folder
 8590        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 8591        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 8592    }
 8593
 8594    #[gpui::test]
 8595    async fn test_close_window(cx: &mut TestAppContext) {
 8596        init_test(cx);
 8597
 8598        let fs = FakeFs::new(cx.executor());
 8599        fs.insert_tree("/root", json!({ "one": "" })).await;
 8600
 8601        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8602        let (workspace, cx) =
 8603            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8604
 8605        // When there are no dirty items, there's nothing to do.
 8606        let item1 = cx.new(TestItem::new);
 8607        workspace.update_in(cx, |w, window, cx| {
 8608            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 8609        });
 8610        let task = workspace.update_in(cx, |w, window, cx| {
 8611            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8612        });
 8613        assert!(task.await.unwrap());
 8614
 8615        // When there are dirty untitled items, prompt to save each one. If the user
 8616        // cancels any prompt, then abort.
 8617        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 8618        let item3 = cx.new(|cx| {
 8619            TestItem::new(cx)
 8620                .with_dirty(true)
 8621                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8622        });
 8623        workspace.update_in(cx, |w, window, cx| {
 8624            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8625            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8626        });
 8627        let task = workspace.update_in(cx, |w, window, cx| {
 8628            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8629        });
 8630        cx.executor().run_until_parked();
 8631        cx.simulate_prompt_answer("Cancel"); // cancel save all
 8632        cx.executor().run_until_parked();
 8633        assert!(!cx.has_pending_prompt());
 8634        assert!(!task.await.unwrap());
 8635    }
 8636
 8637    #[gpui::test]
 8638    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 8639        init_test(cx);
 8640
 8641        // Register TestItem as a serializable item
 8642        cx.update(|cx| {
 8643            register_serializable_item::<TestItem>(cx);
 8644        });
 8645
 8646        let fs = FakeFs::new(cx.executor());
 8647        fs.insert_tree("/root", json!({ "one": "" })).await;
 8648
 8649        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8650        let (workspace, cx) =
 8651            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8652
 8653        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 8654        let item1 = cx.new(|cx| {
 8655            TestItem::new(cx)
 8656                .with_dirty(true)
 8657                .with_serialize(|| Some(Task::ready(Ok(()))))
 8658        });
 8659        let item2 = cx.new(|cx| {
 8660            TestItem::new(cx)
 8661                .with_dirty(true)
 8662                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8663                .with_serialize(|| Some(Task::ready(Ok(()))))
 8664        });
 8665        workspace.update_in(cx, |w, window, cx| {
 8666            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8667            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8668        });
 8669        let task = workspace.update_in(cx, |w, window, cx| {
 8670            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8671        });
 8672        assert!(task.await.unwrap());
 8673    }
 8674
 8675    #[gpui::test]
 8676    async fn test_close_pane_items(cx: &mut TestAppContext) {
 8677        init_test(cx);
 8678
 8679        let fs = FakeFs::new(cx.executor());
 8680
 8681        let project = Project::test(fs, None, cx).await;
 8682        let (workspace, cx) =
 8683            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8684
 8685        let item1 = cx.new(|cx| {
 8686            TestItem::new(cx)
 8687                .with_dirty(true)
 8688                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 8689        });
 8690        let item2 = cx.new(|cx| {
 8691            TestItem::new(cx)
 8692                .with_dirty(true)
 8693                .with_conflict(true)
 8694                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 8695        });
 8696        let item3 = cx.new(|cx| {
 8697            TestItem::new(cx)
 8698                .with_dirty(true)
 8699                .with_conflict(true)
 8700                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 8701        });
 8702        let item4 = cx.new(|cx| {
 8703            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 8704                let project_item = TestProjectItem::new_untitled(cx);
 8705                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8706                project_item
 8707            }])
 8708        });
 8709        let pane = workspace.update_in(cx, |workspace, window, cx| {
 8710            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8711            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8712            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8713            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 8714            workspace.active_pane().clone()
 8715        });
 8716
 8717        let close_items = pane.update_in(cx, |pane, window, cx| {
 8718            pane.activate_item(1, true, true, window, cx);
 8719            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8720            let item1_id = item1.item_id();
 8721            let item3_id = item3.item_id();
 8722            let item4_id = item4.item_id();
 8723            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 8724                [item1_id, item3_id, item4_id].contains(&id)
 8725            })
 8726        });
 8727        cx.executor().run_until_parked();
 8728
 8729        assert!(cx.has_pending_prompt());
 8730        cx.simulate_prompt_answer("Save all");
 8731
 8732        cx.executor().run_until_parked();
 8733
 8734        // Item 1 is saved. There's a prompt to save item 3.
 8735        pane.update(cx, |pane, cx| {
 8736            assert_eq!(item1.read(cx).save_count, 1);
 8737            assert_eq!(item1.read(cx).save_as_count, 0);
 8738            assert_eq!(item1.read(cx).reload_count, 0);
 8739            assert_eq!(pane.items_len(), 3);
 8740            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 8741        });
 8742        assert!(cx.has_pending_prompt());
 8743
 8744        // Cancel saving item 3.
 8745        cx.simulate_prompt_answer("Discard");
 8746        cx.executor().run_until_parked();
 8747
 8748        // Item 3 is reloaded. There's a prompt to save item 4.
 8749        pane.update(cx, |pane, cx| {
 8750            assert_eq!(item3.read(cx).save_count, 0);
 8751            assert_eq!(item3.read(cx).save_as_count, 0);
 8752            assert_eq!(item3.read(cx).reload_count, 1);
 8753            assert_eq!(pane.items_len(), 2);
 8754            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 8755        });
 8756
 8757        // There's a prompt for a path for item 4.
 8758        cx.simulate_new_path_selection(|_| Some(Default::default()));
 8759        close_items.await.unwrap();
 8760
 8761        // The requested items are closed.
 8762        pane.update(cx, |pane, cx| {
 8763            assert_eq!(item4.read(cx).save_count, 0);
 8764            assert_eq!(item4.read(cx).save_as_count, 1);
 8765            assert_eq!(item4.read(cx).reload_count, 0);
 8766            assert_eq!(pane.items_len(), 1);
 8767            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8768        });
 8769    }
 8770
 8771    #[gpui::test]
 8772    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 8773        init_test(cx);
 8774
 8775        let fs = FakeFs::new(cx.executor());
 8776        let project = Project::test(fs, [], cx).await;
 8777        let (workspace, cx) =
 8778            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8779
 8780        // Create several workspace items with single project entries, and two
 8781        // workspace items with multiple project entries.
 8782        let single_entry_items = (0..=4)
 8783            .map(|project_entry_id| {
 8784                cx.new(|cx| {
 8785                    TestItem::new(cx)
 8786                        .with_dirty(true)
 8787                        .with_project_items(&[dirty_project_item(
 8788                            project_entry_id,
 8789                            &format!("{project_entry_id}.txt"),
 8790                            cx,
 8791                        )])
 8792                })
 8793            })
 8794            .collect::<Vec<_>>();
 8795        let item_2_3 = cx.new(|cx| {
 8796            TestItem::new(cx)
 8797                .with_dirty(true)
 8798                .with_buffer_kind(ItemBufferKind::Multibuffer)
 8799                .with_project_items(&[
 8800                    single_entry_items[2].read(cx).project_items[0].clone(),
 8801                    single_entry_items[3].read(cx).project_items[0].clone(),
 8802                ])
 8803        });
 8804        let item_3_4 = cx.new(|cx| {
 8805            TestItem::new(cx)
 8806                .with_dirty(true)
 8807                .with_buffer_kind(ItemBufferKind::Multibuffer)
 8808                .with_project_items(&[
 8809                    single_entry_items[3].read(cx).project_items[0].clone(),
 8810                    single_entry_items[4].read(cx).project_items[0].clone(),
 8811                ])
 8812        });
 8813
 8814        // Create two panes that contain the following project entries:
 8815        //   left pane:
 8816        //     multi-entry items:   (2, 3)
 8817        //     single-entry items:  0, 2, 3, 4
 8818        //   right pane:
 8819        //     single-entry items:  4, 1
 8820        //     multi-entry items:   (3, 4)
 8821        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 8822            let left_pane = workspace.active_pane().clone();
 8823            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 8824            workspace.add_item_to_active_pane(
 8825                single_entry_items[0].boxed_clone(),
 8826                None,
 8827                true,
 8828                window,
 8829                cx,
 8830            );
 8831            workspace.add_item_to_active_pane(
 8832                single_entry_items[2].boxed_clone(),
 8833                None,
 8834                true,
 8835                window,
 8836                cx,
 8837            );
 8838            workspace.add_item_to_active_pane(
 8839                single_entry_items[3].boxed_clone(),
 8840                None,
 8841                true,
 8842                window,
 8843                cx,
 8844            );
 8845            workspace.add_item_to_active_pane(
 8846                single_entry_items[4].boxed_clone(),
 8847                None,
 8848                true,
 8849                window,
 8850                cx,
 8851            );
 8852
 8853            let right_pane =
 8854                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 8855
 8856            let boxed_clone = single_entry_items[1].boxed_clone();
 8857            let right_pane = window.spawn(cx, async move |cx| {
 8858                right_pane.await.inspect(|right_pane| {
 8859                    right_pane
 8860                        .update_in(cx, |pane, window, cx| {
 8861                            pane.add_item(boxed_clone, true, true, None, window, cx);
 8862                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 8863                        })
 8864                        .unwrap();
 8865                })
 8866            });
 8867
 8868            (left_pane, right_pane)
 8869        });
 8870        let right_pane = right_pane.await.unwrap();
 8871        cx.focus(&right_pane);
 8872
 8873        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 8874            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8875                .unwrap()
 8876        });
 8877        cx.executor().run_until_parked();
 8878
 8879        let msg = cx.pending_prompt().unwrap().0;
 8880        assert!(msg.contains("1.txt"));
 8881        assert!(!msg.contains("2.txt"));
 8882        assert!(!msg.contains("3.txt"));
 8883        assert!(!msg.contains("4.txt"));
 8884
 8885        cx.simulate_prompt_answer("Cancel");
 8886        close.await;
 8887
 8888        left_pane
 8889            .update_in(cx, |left_pane, window, cx| {
 8890                left_pane.close_item_by_id(
 8891                    single_entry_items[3].entity_id(),
 8892                    SaveIntent::Skip,
 8893                    window,
 8894                    cx,
 8895                )
 8896            })
 8897            .await
 8898            .unwrap();
 8899
 8900        close = right_pane.update_in(cx, |pane, window, cx| {
 8901            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8902                .unwrap()
 8903        });
 8904        cx.executor().run_until_parked();
 8905
 8906        let details = cx.pending_prompt().unwrap().1;
 8907        assert!(details.contains("1.txt"));
 8908        assert!(!details.contains("2.txt"));
 8909        assert!(details.contains("3.txt"));
 8910        // ideally this assertion could be made, but today we can only
 8911        // save whole items not project items, so the orphaned item 3 causes
 8912        // 4 to be saved too.
 8913        // assert!(!details.contains("4.txt"));
 8914
 8915        cx.simulate_prompt_answer("Save all");
 8916
 8917        cx.executor().run_until_parked();
 8918        close.await;
 8919        right_pane.read_with(cx, |pane, _| {
 8920            assert_eq!(pane.items_len(), 0);
 8921        });
 8922    }
 8923
 8924    #[gpui::test]
 8925    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 8926        init_test(cx);
 8927
 8928        let fs = FakeFs::new(cx.executor());
 8929        let project = Project::test(fs, [], cx).await;
 8930        let (workspace, cx) =
 8931            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8932        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8933
 8934        let item = cx.new(|cx| {
 8935            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8936        });
 8937        let item_id = item.entity_id();
 8938        workspace.update_in(cx, |workspace, window, cx| {
 8939            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8940        });
 8941
 8942        // Autosave on window change.
 8943        item.update(cx, |item, cx| {
 8944            SettingsStore::update_global(cx, |settings, cx| {
 8945                settings.update_user_settings(cx, |settings| {
 8946                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 8947                })
 8948            });
 8949            item.is_dirty = true;
 8950        });
 8951
 8952        // Deactivating the window saves the file.
 8953        cx.deactivate_window();
 8954        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8955
 8956        // Re-activating the window doesn't save the file.
 8957        cx.update(|window, _| window.activate_window());
 8958        cx.executor().run_until_parked();
 8959        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8960
 8961        // Autosave on focus change.
 8962        item.update_in(cx, |item, window, cx| {
 8963            cx.focus_self(window);
 8964            SettingsStore::update_global(cx, |settings, cx| {
 8965                settings.update_user_settings(cx, |settings| {
 8966                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 8967                })
 8968            });
 8969            item.is_dirty = true;
 8970        });
 8971        // Blurring the item saves the file.
 8972        item.update_in(cx, |_, window, _| window.blur());
 8973        cx.executor().run_until_parked();
 8974        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 8975
 8976        // Deactivating the window still saves the file.
 8977        item.update_in(cx, |item, window, cx| {
 8978            cx.focus_self(window);
 8979            item.is_dirty = true;
 8980        });
 8981        cx.deactivate_window();
 8982        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 8983
 8984        // Autosave after delay.
 8985        item.update(cx, |item, cx| {
 8986            SettingsStore::update_global(cx, |settings, cx| {
 8987                settings.update_user_settings(cx, |settings| {
 8988                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 8989                        milliseconds: 500.into(),
 8990                    });
 8991                })
 8992            });
 8993            item.is_dirty = true;
 8994            cx.emit(ItemEvent::Edit);
 8995        });
 8996
 8997        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 8998        cx.executor().advance_clock(Duration::from_millis(250));
 8999        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9000
 9001        // After delay expires, the file is saved.
 9002        cx.executor().advance_clock(Duration::from_millis(250));
 9003        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9004
 9005        // Autosave after delay, should save earlier than delay if tab is closed
 9006        item.update(cx, |item, cx| {
 9007            item.is_dirty = true;
 9008            cx.emit(ItemEvent::Edit);
 9009        });
 9010        cx.executor().advance_clock(Duration::from_millis(250));
 9011        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9012
 9013        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9014        pane.update_in(cx, |pane, window, cx| {
 9015            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9016        })
 9017        .await
 9018        .unwrap();
 9019        assert!(!cx.has_pending_prompt());
 9020        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9021
 9022        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9023        workspace.update_in(cx, |workspace, window, cx| {
 9024            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9025        });
 9026        item.update_in(cx, |item, _window, cx| {
 9027            item.is_dirty = true;
 9028            for project_item in &mut item.project_items {
 9029                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9030            }
 9031        });
 9032        cx.run_until_parked();
 9033        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9034
 9035        // Autosave on focus change, ensuring closing the tab counts as such.
 9036        item.update(cx, |item, cx| {
 9037            SettingsStore::update_global(cx, |settings, cx| {
 9038                settings.update_user_settings(cx, |settings| {
 9039                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9040                })
 9041            });
 9042            item.is_dirty = true;
 9043            for project_item in &mut item.project_items {
 9044                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9045            }
 9046        });
 9047
 9048        pane.update_in(cx, |pane, window, cx| {
 9049            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9050        })
 9051        .await
 9052        .unwrap();
 9053        assert!(!cx.has_pending_prompt());
 9054        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9055
 9056        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9057        workspace.update_in(cx, |workspace, window, cx| {
 9058            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9059        });
 9060        item.update_in(cx, |item, window, cx| {
 9061            item.project_items[0].update(cx, |item, _| {
 9062                item.entry_id = None;
 9063            });
 9064            item.is_dirty = true;
 9065            window.blur();
 9066        });
 9067        cx.run_until_parked();
 9068        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9069
 9070        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9071        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9072            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9073        });
 9074        cx.run_until_parked();
 9075        assert!(cx.has_pending_prompt());
 9076        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9077    }
 9078
 9079    #[gpui::test]
 9080    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9081        init_test(cx);
 9082
 9083        let fs = FakeFs::new(cx.executor());
 9084
 9085        let project = Project::test(fs, [], cx).await;
 9086        let (workspace, cx) =
 9087            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9088
 9089        let item = cx.new(|cx| {
 9090            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9091        });
 9092        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9093        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9094        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9095
 9096        workspace.update_in(cx, |workspace, window, cx| {
 9097            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9098            let toolbar_notification_count = toolbar_notify_count.clone();
 9099            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9100                *toolbar_notification_count.borrow_mut() += 1
 9101            })
 9102            .detach();
 9103        });
 9104
 9105        pane.read_with(cx, |pane, _| {
 9106            assert!(!pane.can_navigate_backward());
 9107            assert!(!pane.can_navigate_forward());
 9108        });
 9109
 9110        item.update_in(cx, |item, _, cx| {
 9111            item.set_state("one".to_string(), cx);
 9112        });
 9113
 9114        // Toolbar must be notified to re-render the navigation buttons
 9115        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9116
 9117        pane.read_with(cx, |pane, _| {
 9118            assert!(pane.can_navigate_backward());
 9119            assert!(!pane.can_navigate_forward());
 9120        });
 9121
 9122        workspace
 9123            .update_in(cx, |workspace, window, cx| {
 9124                workspace.go_back(pane.downgrade(), window, cx)
 9125            })
 9126            .await
 9127            .unwrap();
 9128
 9129        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9130        pane.read_with(cx, |pane, _| {
 9131            assert!(!pane.can_navigate_backward());
 9132            assert!(pane.can_navigate_forward());
 9133        });
 9134    }
 9135
 9136    #[gpui::test]
 9137    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9138        init_test(cx);
 9139        let fs = FakeFs::new(cx.executor());
 9140
 9141        let project = Project::test(fs, [], cx).await;
 9142        let (workspace, cx) =
 9143            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9144
 9145        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9146            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 9147            workspace.add_panel(panel.clone(), window, cx);
 9148
 9149            workspace
 9150                .right_dock()
 9151                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9152
 9153            panel
 9154        });
 9155
 9156        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9157        pane.update_in(cx, |pane, window, cx| {
 9158            let item = cx.new(TestItem::new);
 9159            pane.add_item(Box::new(item), true, true, None, window, cx);
 9160        });
 9161
 9162        // Transfer focus from center to panel
 9163        workspace.update_in(cx, |workspace, window, cx| {
 9164            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9165        });
 9166
 9167        workspace.update_in(cx, |workspace, window, cx| {
 9168            assert!(workspace.right_dock().read(cx).is_open());
 9169            assert!(!panel.is_zoomed(window, cx));
 9170            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9171        });
 9172
 9173        // Transfer focus from panel to center
 9174        workspace.update_in(cx, |workspace, window, cx| {
 9175            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9176        });
 9177
 9178        workspace.update_in(cx, |workspace, window, cx| {
 9179            assert!(workspace.right_dock().read(cx).is_open());
 9180            assert!(!panel.is_zoomed(window, cx));
 9181            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9182        });
 9183
 9184        // Close the dock
 9185        workspace.update_in(cx, |workspace, window, cx| {
 9186            workspace.toggle_dock(DockPosition::Right, window, cx);
 9187        });
 9188
 9189        workspace.update_in(cx, |workspace, window, cx| {
 9190            assert!(!workspace.right_dock().read(cx).is_open());
 9191            assert!(!panel.is_zoomed(window, cx));
 9192            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9193        });
 9194
 9195        // Open the dock
 9196        workspace.update_in(cx, |workspace, window, cx| {
 9197            workspace.toggle_dock(DockPosition::Right, window, cx);
 9198        });
 9199
 9200        workspace.update_in(cx, |workspace, window, cx| {
 9201            assert!(workspace.right_dock().read(cx).is_open());
 9202            assert!(!panel.is_zoomed(window, cx));
 9203            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9204        });
 9205
 9206        // Focus and zoom panel
 9207        panel.update_in(cx, |panel, window, cx| {
 9208            cx.focus_self(window);
 9209            panel.set_zoomed(true, window, cx)
 9210        });
 9211
 9212        workspace.update_in(cx, |workspace, window, cx| {
 9213            assert!(workspace.right_dock().read(cx).is_open());
 9214            assert!(panel.is_zoomed(window, cx));
 9215            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9216        });
 9217
 9218        // Transfer focus to the center closes the dock
 9219        workspace.update_in(cx, |workspace, window, cx| {
 9220            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9221        });
 9222
 9223        workspace.update_in(cx, |workspace, window, cx| {
 9224            assert!(!workspace.right_dock().read(cx).is_open());
 9225            assert!(panel.is_zoomed(window, cx));
 9226            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9227        });
 9228
 9229        // Transferring focus back to the panel keeps it zoomed
 9230        workspace.update_in(cx, |workspace, window, cx| {
 9231            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9232        });
 9233
 9234        workspace.update_in(cx, |workspace, window, cx| {
 9235            assert!(workspace.right_dock().read(cx).is_open());
 9236            assert!(panel.is_zoomed(window, cx));
 9237            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9238        });
 9239
 9240        // Close the dock while it is zoomed
 9241        workspace.update_in(cx, |workspace, window, cx| {
 9242            workspace.toggle_dock(DockPosition::Right, window, cx)
 9243        });
 9244
 9245        workspace.update_in(cx, |workspace, window, cx| {
 9246            assert!(!workspace.right_dock().read(cx).is_open());
 9247            assert!(panel.is_zoomed(window, cx));
 9248            assert!(workspace.zoomed.is_none());
 9249            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9250        });
 9251
 9252        // Opening the dock, when it's zoomed, retains focus
 9253        workspace.update_in(cx, |workspace, window, cx| {
 9254            workspace.toggle_dock(DockPosition::Right, window, cx)
 9255        });
 9256
 9257        workspace.update_in(cx, |workspace, window, cx| {
 9258            assert!(workspace.right_dock().read(cx).is_open());
 9259            assert!(panel.is_zoomed(window, cx));
 9260            assert!(workspace.zoomed.is_some());
 9261            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9262        });
 9263
 9264        // Unzoom and close the panel, zoom the active pane.
 9265        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9266        workspace.update_in(cx, |workspace, window, cx| {
 9267            workspace.toggle_dock(DockPosition::Right, window, cx)
 9268        });
 9269        pane.update_in(cx, |pane, window, cx| {
 9270            pane.toggle_zoom(&Default::default(), window, cx)
 9271        });
 9272
 9273        // Opening a dock unzooms the pane.
 9274        workspace.update_in(cx, |workspace, window, cx| {
 9275            workspace.toggle_dock(DockPosition::Right, window, cx)
 9276        });
 9277        workspace.update_in(cx, |workspace, window, cx| {
 9278            let pane = pane.read(cx);
 9279            assert!(!pane.is_zoomed());
 9280            assert!(!pane.focus_handle(cx).is_focused(window));
 9281            assert!(workspace.right_dock().read(cx).is_open());
 9282            assert!(workspace.zoomed.is_none());
 9283        });
 9284    }
 9285
 9286    #[gpui::test]
 9287    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
 9288        init_test(cx);
 9289        let fs = FakeFs::new(cx.executor());
 9290
 9291        let project = Project::test(fs, [], cx).await;
 9292        let (workspace, cx) =
 9293            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9294        workspace.update_in(cx, |workspace, window, cx| {
 9295            // Open two docks
 9296            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9297            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9298
 9299            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9300            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9301
 9302            assert!(left_dock.read(cx).is_open());
 9303            assert!(right_dock.read(cx).is_open());
 9304        });
 9305
 9306        workspace.update_in(cx, |workspace, window, cx| {
 9307            // Toggle all docks - should close both
 9308            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9309
 9310            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9311            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9312            assert!(!left_dock.read(cx).is_open());
 9313            assert!(!right_dock.read(cx).is_open());
 9314        });
 9315
 9316        workspace.update_in(cx, |workspace, window, cx| {
 9317            // Toggle again - should reopen both
 9318            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9319
 9320            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9321            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9322            assert!(left_dock.read(cx).is_open());
 9323            assert!(right_dock.read(cx).is_open());
 9324        });
 9325    }
 9326
 9327    #[gpui::test]
 9328    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
 9329        init_test(cx);
 9330        let fs = FakeFs::new(cx.executor());
 9331
 9332        let project = Project::test(fs, [], cx).await;
 9333        let (workspace, cx) =
 9334            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9335        workspace.update_in(cx, |workspace, window, cx| {
 9336            // Open two docks
 9337            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9338            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9339
 9340            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9341            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9342
 9343            assert!(left_dock.read(cx).is_open());
 9344            assert!(right_dock.read(cx).is_open());
 9345        });
 9346
 9347        workspace.update_in(cx, |workspace, window, cx| {
 9348            // Close them manually
 9349            workspace.toggle_dock(DockPosition::Left, window, cx);
 9350            workspace.toggle_dock(DockPosition::Right, window, cx);
 9351
 9352            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9353            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9354            assert!(!left_dock.read(cx).is_open());
 9355            assert!(!right_dock.read(cx).is_open());
 9356        });
 9357
 9358        workspace.update_in(cx, |workspace, window, cx| {
 9359            // Toggle all docks - only last closed (right dock) should reopen
 9360            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9361
 9362            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9363            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9364            assert!(!left_dock.read(cx).is_open());
 9365            assert!(right_dock.read(cx).is_open());
 9366        });
 9367    }
 9368
 9369    #[gpui::test]
 9370    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
 9371        init_test(cx);
 9372        let fs = FakeFs::new(cx.executor());
 9373        let project = Project::test(fs, [], cx).await;
 9374        let (workspace, cx) =
 9375            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9376
 9377        // Open two docks (left and right) with one panel each
 9378        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
 9379            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, cx));
 9380            workspace.add_panel(left_panel.clone(), window, cx);
 9381
 9382            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 9383            workspace.add_panel(right_panel.clone(), window, cx);
 9384
 9385            workspace.toggle_dock(DockPosition::Left, window, cx);
 9386            workspace.toggle_dock(DockPosition::Right, window, cx);
 9387
 9388            // Verify initial state
 9389            assert!(
 9390                workspace.left_dock().read(cx).is_open(),
 9391                "Left dock should be open"
 9392            );
 9393            assert_eq!(
 9394                workspace
 9395                    .left_dock()
 9396                    .read(cx)
 9397                    .visible_panel()
 9398                    .unwrap()
 9399                    .panel_id(),
 9400                left_panel.panel_id(),
 9401                "Left panel should be visible in left dock"
 9402            );
 9403            assert!(
 9404                workspace.right_dock().read(cx).is_open(),
 9405                "Right dock should be open"
 9406            );
 9407            assert_eq!(
 9408                workspace
 9409                    .right_dock()
 9410                    .read(cx)
 9411                    .visible_panel()
 9412                    .unwrap()
 9413                    .panel_id(),
 9414                right_panel.panel_id(),
 9415                "Right panel should be visible in right dock"
 9416            );
 9417            assert!(
 9418                !workspace.bottom_dock().read(cx).is_open(),
 9419                "Bottom dock should be closed"
 9420            );
 9421
 9422            (left_panel, right_panel)
 9423        });
 9424
 9425        // Focus the left panel and move it to the next position (bottom dock)
 9426        workspace.update_in(cx, |workspace, window, cx| {
 9427            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
 9428            assert!(
 9429                left_panel.read(cx).focus_handle(cx).is_focused(window),
 9430                "Left panel should be focused"
 9431            );
 9432        });
 9433
 9434        cx.dispatch_action(MoveFocusedPanelToNextPosition);
 9435
 9436        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
 9437        workspace.update(cx, |workspace, cx| {
 9438            assert!(
 9439                !workspace.left_dock().read(cx).is_open(),
 9440                "Left dock should be closed"
 9441            );
 9442            assert!(
 9443                workspace.bottom_dock().read(cx).is_open(),
 9444                "Bottom dock should now be open"
 9445            );
 9446            assert_eq!(
 9447                left_panel.read(cx).position,
 9448                DockPosition::Bottom,
 9449                "Left panel should now be in the bottom dock"
 9450            );
 9451            assert_eq!(
 9452                workspace
 9453                    .bottom_dock()
 9454                    .read(cx)
 9455                    .visible_panel()
 9456                    .unwrap()
 9457                    .panel_id(),
 9458                left_panel.panel_id(),
 9459                "Left panel should be the visible panel in the bottom dock"
 9460            );
 9461        });
 9462
 9463        // Toggle all docks off
 9464        workspace.update_in(cx, |workspace, window, cx| {
 9465            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9466            assert!(
 9467                !workspace.left_dock().read(cx).is_open(),
 9468                "Left dock should be closed"
 9469            );
 9470            assert!(
 9471                !workspace.right_dock().read(cx).is_open(),
 9472                "Right dock should be closed"
 9473            );
 9474            assert!(
 9475                !workspace.bottom_dock().read(cx).is_open(),
 9476                "Bottom dock should be closed"
 9477            );
 9478        });
 9479
 9480        // Toggle all docks back on and verify positions are restored
 9481        workspace.update_in(cx, |workspace, window, cx| {
 9482            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9483            assert!(
 9484                !workspace.left_dock().read(cx).is_open(),
 9485                "Left dock should remain closed"
 9486            );
 9487            assert!(
 9488                workspace.right_dock().read(cx).is_open(),
 9489                "Right dock should remain open"
 9490            );
 9491            assert!(
 9492                workspace.bottom_dock().read(cx).is_open(),
 9493                "Bottom dock should remain open"
 9494            );
 9495            assert_eq!(
 9496                left_panel.read(cx).position,
 9497                DockPosition::Bottom,
 9498                "Left panel should remain in the bottom dock"
 9499            );
 9500            assert_eq!(
 9501                right_panel.read(cx).position,
 9502                DockPosition::Right,
 9503                "Right panel should remain in the right dock"
 9504            );
 9505            assert_eq!(
 9506                workspace
 9507                    .bottom_dock()
 9508                    .read(cx)
 9509                    .visible_panel()
 9510                    .unwrap()
 9511                    .panel_id(),
 9512                left_panel.panel_id(),
 9513                "Left panel should be the visible panel in the right dock"
 9514            );
 9515        });
 9516    }
 9517
 9518    #[gpui::test]
 9519    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
 9520        init_test(cx);
 9521
 9522        let fs = FakeFs::new(cx.executor());
 9523
 9524        let project = Project::test(fs, None, cx).await;
 9525        let (workspace, cx) =
 9526            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9527
 9528        // Let's arrange the panes like this:
 9529        //
 9530        // +-----------------------+
 9531        // |         top           |
 9532        // +------+--------+-------+
 9533        // | left | center | right |
 9534        // +------+--------+-------+
 9535        // |        bottom         |
 9536        // +-----------------------+
 9537
 9538        let top_item = cx.new(|cx| {
 9539            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
 9540        });
 9541        let bottom_item = cx.new(|cx| {
 9542            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
 9543        });
 9544        let left_item = cx.new(|cx| {
 9545            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
 9546        });
 9547        let right_item = cx.new(|cx| {
 9548            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
 9549        });
 9550        let center_item = cx.new(|cx| {
 9551            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
 9552        });
 9553
 9554        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9555            let top_pane_id = workspace.active_pane().entity_id();
 9556            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
 9557            workspace.split_pane(
 9558                workspace.active_pane().clone(),
 9559                SplitDirection::Down,
 9560                window,
 9561                cx,
 9562            );
 9563            top_pane_id
 9564        });
 9565        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9566            let bottom_pane_id = workspace.active_pane().entity_id();
 9567            workspace.add_item_to_active_pane(
 9568                Box::new(bottom_item.clone()),
 9569                None,
 9570                false,
 9571                window,
 9572                cx,
 9573            );
 9574            workspace.split_pane(
 9575                workspace.active_pane().clone(),
 9576                SplitDirection::Up,
 9577                window,
 9578                cx,
 9579            );
 9580            bottom_pane_id
 9581        });
 9582        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9583            let left_pane_id = workspace.active_pane().entity_id();
 9584            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
 9585            workspace.split_pane(
 9586                workspace.active_pane().clone(),
 9587                SplitDirection::Right,
 9588                window,
 9589                cx,
 9590            );
 9591            left_pane_id
 9592        });
 9593        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9594            let right_pane_id = workspace.active_pane().entity_id();
 9595            workspace.add_item_to_active_pane(
 9596                Box::new(right_item.clone()),
 9597                None,
 9598                false,
 9599                window,
 9600                cx,
 9601            );
 9602            workspace.split_pane(
 9603                workspace.active_pane().clone(),
 9604                SplitDirection::Left,
 9605                window,
 9606                cx,
 9607            );
 9608            right_pane_id
 9609        });
 9610        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9611            let center_pane_id = workspace.active_pane().entity_id();
 9612            workspace.add_item_to_active_pane(
 9613                Box::new(center_item.clone()),
 9614                None,
 9615                false,
 9616                window,
 9617                cx,
 9618            );
 9619            center_pane_id
 9620        });
 9621        cx.executor().run_until_parked();
 9622
 9623        workspace.update_in(cx, |workspace, window, cx| {
 9624            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
 9625
 9626            // Join into next from center pane into right
 9627            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9628        });
 9629
 9630        workspace.update_in(cx, |workspace, window, cx| {
 9631            let active_pane = workspace.active_pane();
 9632            assert_eq!(right_pane_id, active_pane.entity_id());
 9633            assert_eq!(2, active_pane.read(cx).items_len());
 9634            let item_ids_in_pane =
 9635                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9636            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9637            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9638
 9639            // Join into next from right pane into bottom
 9640            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9641        });
 9642
 9643        workspace.update_in(cx, |workspace, window, cx| {
 9644            let active_pane = workspace.active_pane();
 9645            assert_eq!(bottom_pane_id, active_pane.entity_id());
 9646            assert_eq!(3, active_pane.read(cx).items_len());
 9647            let item_ids_in_pane =
 9648                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9649            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9650            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9651            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9652
 9653            // Join into next from bottom pane into left
 9654            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9655        });
 9656
 9657        workspace.update_in(cx, |workspace, window, cx| {
 9658            let active_pane = workspace.active_pane();
 9659            assert_eq!(left_pane_id, active_pane.entity_id());
 9660            assert_eq!(4, active_pane.read(cx).items_len());
 9661            let item_ids_in_pane =
 9662                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9663            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9664            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9665            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9666            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9667
 9668            // Join into next from left pane into top
 9669            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9670        });
 9671
 9672        workspace.update_in(cx, |workspace, window, cx| {
 9673            let active_pane = workspace.active_pane();
 9674            assert_eq!(top_pane_id, active_pane.entity_id());
 9675            assert_eq!(5, active_pane.read(cx).items_len());
 9676            let item_ids_in_pane =
 9677                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9678            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9679            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9680            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9681            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9682            assert!(item_ids_in_pane.contains(&top_item.item_id()));
 9683
 9684            // Single pane left: no-op
 9685            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
 9686        });
 9687
 9688        workspace.update(cx, |workspace, _cx| {
 9689            let active_pane = workspace.active_pane();
 9690            assert_eq!(top_pane_id, active_pane.entity_id());
 9691        });
 9692    }
 9693
 9694    fn add_an_item_to_active_pane(
 9695        cx: &mut VisualTestContext,
 9696        workspace: &Entity<Workspace>,
 9697        item_id: u64,
 9698    ) -> Entity<TestItem> {
 9699        let item = cx.new(|cx| {
 9700            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
 9701                item_id,
 9702                "item{item_id}.txt",
 9703                cx,
 9704            )])
 9705        });
 9706        workspace.update_in(cx, |workspace, window, cx| {
 9707            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
 9708        });
 9709        item
 9710    }
 9711
 9712    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
 9713        workspace.update_in(cx, |workspace, window, cx| {
 9714            workspace.split_pane(
 9715                workspace.active_pane().clone(),
 9716                SplitDirection::Right,
 9717                window,
 9718                cx,
 9719            )
 9720        })
 9721    }
 9722
 9723    #[gpui::test]
 9724    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
 9725        init_test(cx);
 9726        let fs = FakeFs::new(cx.executor());
 9727        let project = Project::test(fs, None, cx).await;
 9728        let (workspace, cx) =
 9729            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9730
 9731        add_an_item_to_active_pane(cx, &workspace, 1);
 9732        split_pane(cx, &workspace);
 9733        add_an_item_to_active_pane(cx, &workspace, 2);
 9734        split_pane(cx, &workspace); // empty pane
 9735        split_pane(cx, &workspace);
 9736        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
 9737
 9738        cx.executor().run_until_parked();
 9739
 9740        workspace.update(cx, |workspace, cx| {
 9741            let num_panes = workspace.panes().len();
 9742            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9743            let active_item = workspace
 9744                .active_pane()
 9745                .read(cx)
 9746                .active_item()
 9747                .expect("item is in focus");
 9748
 9749            assert_eq!(num_panes, 4);
 9750            assert_eq!(num_items_in_current_pane, 1);
 9751            assert_eq!(active_item.item_id(), last_item.item_id());
 9752        });
 9753
 9754        workspace.update_in(cx, |workspace, window, cx| {
 9755            workspace.join_all_panes(window, cx);
 9756        });
 9757
 9758        workspace.update(cx, |workspace, cx| {
 9759            let num_panes = workspace.panes().len();
 9760            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9761            let active_item = workspace
 9762                .active_pane()
 9763                .read(cx)
 9764                .active_item()
 9765                .expect("item is in focus");
 9766
 9767            assert_eq!(num_panes, 1);
 9768            assert_eq!(num_items_in_current_pane, 3);
 9769            assert_eq!(active_item.item_id(), last_item.item_id());
 9770        });
 9771    }
 9772    struct TestModal(FocusHandle);
 9773
 9774    impl TestModal {
 9775        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
 9776            Self(cx.focus_handle())
 9777        }
 9778    }
 9779
 9780    impl EventEmitter<DismissEvent> for TestModal {}
 9781
 9782    impl Focusable for TestModal {
 9783        fn focus_handle(&self, _cx: &App) -> FocusHandle {
 9784            self.0.clone()
 9785        }
 9786    }
 9787
 9788    impl ModalView for TestModal {}
 9789
 9790    impl Render for TestModal {
 9791        fn render(
 9792            &mut self,
 9793            _window: &mut Window,
 9794            _cx: &mut Context<TestModal>,
 9795        ) -> impl IntoElement {
 9796            div().track_focus(&self.0)
 9797        }
 9798    }
 9799
 9800    #[gpui::test]
 9801    async fn test_panels(cx: &mut gpui::TestAppContext) {
 9802        init_test(cx);
 9803        let fs = FakeFs::new(cx.executor());
 9804
 9805        let project = Project::test(fs, [], cx).await;
 9806        let (workspace, cx) =
 9807            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9808
 9809        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
 9810            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, cx));
 9811            workspace.add_panel(panel_1.clone(), window, cx);
 9812            workspace.toggle_dock(DockPosition::Left, window, cx);
 9813            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 9814            workspace.add_panel(panel_2.clone(), window, cx);
 9815            workspace.toggle_dock(DockPosition::Right, window, cx);
 9816
 9817            let left_dock = workspace.left_dock();
 9818            assert_eq!(
 9819                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9820                panel_1.panel_id()
 9821            );
 9822            assert_eq!(
 9823                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9824                panel_1.size(window, cx)
 9825            );
 9826
 9827            left_dock.update(cx, |left_dock, cx| {
 9828                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
 9829            });
 9830            assert_eq!(
 9831                workspace
 9832                    .right_dock()
 9833                    .read(cx)
 9834                    .visible_panel()
 9835                    .unwrap()
 9836                    .panel_id(),
 9837                panel_2.panel_id(),
 9838            );
 9839
 9840            (panel_1, panel_2)
 9841        });
 9842
 9843        // Move panel_1 to the right
 9844        panel_1.update_in(cx, |panel_1, window, cx| {
 9845            panel_1.set_position(DockPosition::Right, window, cx)
 9846        });
 9847
 9848        workspace.update_in(cx, |workspace, window, cx| {
 9849            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
 9850            // Since it was the only panel on the left, the left dock should now be closed.
 9851            assert!(!workspace.left_dock().read(cx).is_open());
 9852            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
 9853            let right_dock = workspace.right_dock();
 9854            assert_eq!(
 9855                right_dock.read(cx).visible_panel().unwrap().panel_id(),
 9856                panel_1.panel_id()
 9857            );
 9858            assert_eq!(
 9859                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9860                px(1337.)
 9861            );
 9862
 9863            // Now we move panel_2 to the left
 9864            panel_2.set_position(DockPosition::Left, window, cx);
 9865        });
 9866
 9867        workspace.update(cx, |workspace, cx| {
 9868            // Since panel_2 was not visible on the right, we don't open the left dock.
 9869            assert!(!workspace.left_dock().read(cx).is_open());
 9870            // And the right dock is unaffected in its displaying of panel_1
 9871            assert!(workspace.right_dock().read(cx).is_open());
 9872            assert_eq!(
 9873                workspace
 9874                    .right_dock()
 9875                    .read(cx)
 9876                    .visible_panel()
 9877                    .unwrap()
 9878                    .panel_id(),
 9879                panel_1.panel_id(),
 9880            );
 9881        });
 9882
 9883        // Move panel_1 back to the left
 9884        panel_1.update_in(cx, |panel_1, window, cx| {
 9885            panel_1.set_position(DockPosition::Left, window, cx)
 9886        });
 9887
 9888        workspace.update_in(cx, |workspace, window, cx| {
 9889            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
 9890            let left_dock = workspace.left_dock();
 9891            assert!(left_dock.read(cx).is_open());
 9892            assert_eq!(
 9893                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9894                panel_1.panel_id()
 9895            );
 9896            assert_eq!(
 9897                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9898                px(1337.)
 9899            );
 9900            // And the right dock should be closed as it no longer has any panels.
 9901            assert!(!workspace.right_dock().read(cx).is_open());
 9902
 9903            // Now we move panel_1 to the bottom
 9904            panel_1.set_position(DockPosition::Bottom, window, cx);
 9905        });
 9906
 9907        workspace.update_in(cx, |workspace, window, cx| {
 9908            // Since panel_1 was visible on the left, we close the left dock.
 9909            assert!(!workspace.left_dock().read(cx).is_open());
 9910            // The bottom dock is sized based on the panel's default size,
 9911            // since the panel orientation changed from vertical to horizontal.
 9912            let bottom_dock = workspace.bottom_dock();
 9913            assert_eq!(
 9914                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9915                panel_1.size(window, cx),
 9916            );
 9917            // Close bottom dock and move panel_1 back to the left.
 9918            bottom_dock.update(cx, |bottom_dock, cx| {
 9919                bottom_dock.set_open(false, window, cx)
 9920            });
 9921            panel_1.set_position(DockPosition::Left, window, cx);
 9922        });
 9923
 9924        // Emit activated event on panel 1
 9925        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
 9926
 9927        // Now the left dock is open and panel_1 is active and focused.
 9928        workspace.update_in(cx, |workspace, window, cx| {
 9929            let left_dock = workspace.left_dock();
 9930            assert!(left_dock.read(cx).is_open());
 9931            assert_eq!(
 9932                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9933                panel_1.panel_id(),
 9934            );
 9935            assert!(panel_1.focus_handle(cx).is_focused(window));
 9936        });
 9937
 9938        // Emit closed event on panel 2, which is not active
 9939        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 9940
 9941        // Wo don't close the left dock, because panel_2 wasn't the active panel
 9942        workspace.update(cx, |workspace, cx| {
 9943            let left_dock = workspace.left_dock();
 9944            assert!(left_dock.read(cx).is_open());
 9945            assert_eq!(
 9946                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9947                panel_1.panel_id(),
 9948            );
 9949        });
 9950
 9951        // Emitting a ZoomIn event shows the panel as zoomed.
 9952        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
 9953        workspace.read_with(cx, |workspace, _| {
 9954            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9955            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
 9956        });
 9957
 9958        // Move panel to another dock while it is zoomed
 9959        panel_1.update_in(cx, |panel, window, cx| {
 9960            panel.set_position(DockPosition::Right, window, cx)
 9961        });
 9962        workspace.read_with(cx, |workspace, _| {
 9963            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9964
 9965            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9966        });
 9967
 9968        // This is a helper for getting a:
 9969        // - valid focus on an element,
 9970        // - that isn't a part of the panes and panels system of the Workspace,
 9971        // - and doesn't trigger the 'on_focus_lost' API.
 9972        let focus_other_view = {
 9973            let workspace = workspace.clone();
 9974            move |cx: &mut VisualTestContext| {
 9975                workspace.update_in(cx, |workspace, window, cx| {
 9976                    if workspace.active_modal::<TestModal>(cx).is_some() {
 9977                        workspace.toggle_modal(window, cx, TestModal::new);
 9978                        workspace.toggle_modal(window, cx, TestModal::new);
 9979                    } else {
 9980                        workspace.toggle_modal(window, cx, TestModal::new);
 9981                    }
 9982                })
 9983            }
 9984        };
 9985
 9986        // If focus is transferred to another view that's not a panel or another pane, we still show
 9987        // the panel as zoomed.
 9988        focus_other_view(cx);
 9989        workspace.read_with(cx, |workspace, _| {
 9990            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9991            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9992        });
 9993
 9994        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
 9995        workspace.update_in(cx, |_workspace, window, cx| {
 9996            cx.focus_self(window);
 9997        });
 9998        workspace.read_with(cx, |workspace, _| {
 9999            assert_eq!(workspace.zoomed, None);
10000            assert_eq!(workspace.zoomed_position, None);
10001        });
10002
10003        // If focus is transferred again to another view that's not a panel or a pane, we won't
10004        // show the panel as zoomed because it wasn't zoomed before.
10005        focus_other_view(cx);
10006        workspace.read_with(cx, |workspace, _| {
10007            assert_eq!(workspace.zoomed, None);
10008            assert_eq!(workspace.zoomed_position, None);
10009        });
10010
10011        // When the panel is activated, it is zoomed again.
10012        cx.dispatch_action(ToggleRightDock);
10013        workspace.read_with(cx, |workspace, _| {
10014            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10015            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10016        });
10017
10018        // Emitting a ZoomOut event unzooms the panel.
10019        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10020        workspace.read_with(cx, |workspace, _| {
10021            assert_eq!(workspace.zoomed, None);
10022            assert_eq!(workspace.zoomed_position, None);
10023        });
10024
10025        // Emit closed event on panel 1, which is active
10026        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10027
10028        // Now the left dock is closed, because panel_1 was the active panel
10029        workspace.update(cx, |workspace, cx| {
10030            let right_dock = workspace.right_dock();
10031            assert!(!right_dock.read(cx).is_open());
10032        });
10033    }
10034
10035    #[gpui::test]
10036    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10037        init_test(cx);
10038
10039        let fs = FakeFs::new(cx.background_executor.clone());
10040        let project = Project::test(fs, [], cx).await;
10041        let (workspace, cx) =
10042            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10043        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10044
10045        let dirty_regular_buffer = cx.new(|cx| {
10046            TestItem::new(cx)
10047                .with_dirty(true)
10048                .with_label("1.txt")
10049                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10050        });
10051        let dirty_regular_buffer_2 = cx.new(|cx| {
10052            TestItem::new(cx)
10053                .with_dirty(true)
10054                .with_label("2.txt")
10055                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10056        });
10057        let dirty_multi_buffer_with_both = cx.new(|cx| {
10058            TestItem::new(cx)
10059                .with_dirty(true)
10060                .with_buffer_kind(ItemBufferKind::Multibuffer)
10061                .with_label("Fake Project Search")
10062                .with_project_items(&[
10063                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10064                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10065                ])
10066        });
10067        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10068        workspace.update_in(cx, |workspace, window, cx| {
10069            workspace.add_item(
10070                pane.clone(),
10071                Box::new(dirty_regular_buffer.clone()),
10072                None,
10073                false,
10074                false,
10075                window,
10076                cx,
10077            );
10078            workspace.add_item(
10079                pane.clone(),
10080                Box::new(dirty_regular_buffer_2.clone()),
10081                None,
10082                false,
10083                false,
10084                window,
10085                cx,
10086            );
10087            workspace.add_item(
10088                pane.clone(),
10089                Box::new(dirty_multi_buffer_with_both.clone()),
10090                None,
10091                false,
10092                false,
10093                window,
10094                cx,
10095            );
10096        });
10097
10098        pane.update_in(cx, |pane, window, cx| {
10099            pane.activate_item(2, true, true, window, cx);
10100            assert_eq!(
10101                pane.active_item().unwrap().item_id(),
10102                multi_buffer_with_both_files_id,
10103                "Should select the multi buffer in the pane"
10104            );
10105        });
10106        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10107            pane.close_other_items(
10108                &CloseOtherItems {
10109                    save_intent: Some(SaveIntent::Save),
10110                    close_pinned: true,
10111                },
10112                None,
10113                window,
10114                cx,
10115            )
10116        });
10117        cx.background_executor.run_until_parked();
10118        assert!(!cx.has_pending_prompt());
10119        close_all_but_multi_buffer_task
10120            .await
10121            .expect("Closing all buffers but the multi buffer failed");
10122        pane.update(cx, |pane, cx| {
10123            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10124            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10125            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10126            assert_eq!(pane.items_len(), 1);
10127            assert_eq!(
10128                pane.active_item().unwrap().item_id(),
10129                multi_buffer_with_both_files_id,
10130                "Should have only the multi buffer left in the pane"
10131            );
10132            assert!(
10133                dirty_multi_buffer_with_both.read(cx).is_dirty,
10134                "The multi buffer containing the unsaved buffer should still be dirty"
10135            );
10136        });
10137
10138        dirty_regular_buffer.update(cx, |buffer, cx| {
10139            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10140        });
10141
10142        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10143            pane.close_active_item(
10144                &CloseActiveItem {
10145                    save_intent: Some(SaveIntent::Close),
10146                    close_pinned: false,
10147                },
10148                window,
10149                cx,
10150            )
10151        });
10152        cx.background_executor.run_until_parked();
10153        assert!(
10154            cx.has_pending_prompt(),
10155            "Dirty multi buffer should prompt a save dialog"
10156        );
10157        cx.simulate_prompt_answer("Save");
10158        cx.background_executor.run_until_parked();
10159        close_multi_buffer_task
10160            .await
10161            .expect("Closing the multi buffer failed");
10162        pane.update(cx, |pane, cx| {
10163            assert_eq!(
10164                dirty_multi_buffer_with_both.read(cx).save_count,
10165                1,
10166                "Multi buffer item should get be saved"
10167            );
10168            // Test impl does not save inner items, so we do not assert them
10169            assert_eq!(
10170                pane.items_len(),
10171                0,
10172                "No more items should be left in the pane"
10173            );
10174            assert!(pane.active_item().is_none());
10175        });
10176    }
10177
10178    #[gpui::test]
10179    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
10180        cx: &mut TestAppContext,
10181    ) {
10182        init_test(cx);
10183
10184        let fs = FakeFs::new(cx.background_executor.clone());
10185        let project = Project::test(fs, [], cx).await;
10186        let (workspace, cx) =
10187            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10188        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10189
10190        let dirty_regular_buffer = cx.new(|cx| {
10191            TestItem::new(cx)
10192                .with_dirty(true)
10193                .with_label("1.txt")
10194                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10195        });
10196        let dirty_regular_buffer_2 = cx.new(|cx| {
10197            TestItem::new(cx)
10198                .with_dirty(true)
10199                .with_label("2.txt")
10200                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10201        });
10202        let clear_regular_buffer = cx.new(|cx| {
10203            TestItem::new(cx)
10204                .with_label("3.txt")
10205                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10206        });
10207
10208        let dirty_multi_buffer_with_both = cx.new(|cx| {
10209            TestItem::new(cx)
10210                .with_dirty(true)
10211                .with_buffer_kind(ItemBufferKind::Multibuffer)
10212                .with_label("Fake Project Search")
10213                .with_project_items(&[
10214                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10215                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10216                    clear_regular_buffer.read(cx).project_items[0].clone(),
10217                ])
10218        });
10219        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10220        workspace.update_in(cx, |workspace, window, cx| {
10221            workspace.add_item(
10222                pane.clone(),
10223                Box::new(dirty_regular_buffer.clone()),
10224                None,
10225                false,
10226                false,
10227                window,
10228                cx,
10229            );
10230            workspace.add_item(
10231                pane.clone(),
10232                Box::new(dirty_multi_buffer_with_both.clone()),
10233                None,
10234                false,
10235                false,
10236                window,
10237                cx,
10238            );
10239        });
10240
10241        pane.update_in(cx, |pane, window, cx| {
10242            pane.activate_item(1, true, true, window, cx);
10243            assert_eq!(
10244                pane.active_item().unwrap().item_id(),
10245                multi_buffer_with_both_files_id,
10246                "Should select the multi buffer in the pane"
10247            );
10248        });
10249        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10250            pane.close_active_item(
10251                &CloseActiveItem {
10252                    save_intent: None,
10253                    close_pinned: false,
10254                },
10255                window,
10256                cx,
10257            )
10258        });
10259        cx.background_executor.run_until_parked();
10260        assert!(
10261            cx.has_pending_prompt(),
10262            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
10263        );
10264    }
10265
10266    /// Tests that when `close_on_file_delete` is enabled, files are automatically
10267    /// closed when they are deleted from disk.
10268    #[gpui::test]
10269    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
10270        init_test(cx);
10271
10272        // Enable the close_on_disk_deletion setting
10273        cx.update_global(|store: &mut SettingsStore, cx| {
10274            store.update_user_settings(cx, |settings| {
10275                settings.workspace.close_on_file_delete = Some(true);
10276            });
10277        });
10278
10279        let fs = FakeFs::new(cx.background_executor.clone());
10280        let project = Project::test(fs, [], cx).await;
10281        let (workspace, cx) =
10282            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10283        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10284
10285        // Create a test item that simulates a file
10286        let item = cx.new(|cx| {
10287            TestItem::new(cx)
10288                .with_label("test.txt")
10289                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10290        });
10291
10292        // Add item to workspace
10293        workspace.update_in(cx, |workspace, window, cx| {
10294            workspace.add_item(
10295                pane.clone(),
10296                Box::new(item.clone()),
10297                None,
10298                false,
10299                false,
10300                window,
10301                cx,
10302            );
10303        });
10304
10305        // Verify the item is in the pane
10306        pane.read_with(cx, |pane, _| {
10307            assert_eq!(pane.items().count(), 1);
10308        });
10309
10310        // Simulate file deletion by setting the item's deleted state
10311        item.update(cx, |item, _| {
10312            item.set_has_deleted_file(true);
10313        });
10314
10315        // Emit UpdateTab event to trigger the close behavior
10316        cx.run_until_parked();
10317        item.update(cx, |_, cx| {
10318            cx.emit(ItemEvent::UpdateTab);
10319        });
10320
10321        // Allow the close operation to complete
10322        cx.run_until_parked();
10323
10324        // Verify the item was automatically closed
10325        pane.read_with(cx, |pane, _| {
10326            assert_eq!(
10327                pane.items().count(),
10328                0,
10329                "Item should be automatically closed when file is deleted"
10330            );
10331        });
10332    }
10333
10334    /// Tests that when `close_on_file_delete` is disabled (default), files remain
10335    /// open with a strikethrough when they are deleted from disk.
10336    #[gpui::test]
10337    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
10338        init_test(cx);
10339
10340        // Ensure close_on_disk_deletion is disabled (default)
10341        cx.update_global(|store: &mut SettingsStore, cx| {
10342            store.update_user_settings(cx, |settings| {
10343                settings.workspace.close_on_file_delete = Some(false);
10344            });
10345        });
10346
10347        let fs = FakeFs::new(cx.background_executor.clone());
10348        let project = Project::test(fs, [], cx).await;
10349        let (workspace, cx) =
10350            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10351        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10352
10353        // Create a test item that simulates a file
10354        let item = cx.new(|cx| {
10355            TestItem::new(cx)
10356                .with_label("test.txt")
10357                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10358        });
10359
10360        // Add item to workspace
10361        workspace.update_in(cx, |workspace, window, cx| {
10362            workspace.add_item(
10363                pane.clone(),
10364                Box::new(item.clone()),
10365                None,
10366                false,
10367                false,
10368                window,
10369                cx,
10370            );
10371        });
10372
10373        // Verify the item is in the pane
10374        pane.read_with(cx, |pane, _| {
10375            assert_eq!(pane.items().count(), 1);
10376        });
10377
10378        // Simulate file deletion
10379        item.update(cx, |item, _| {
10380            item.set_has_deleted_file(true);
10381        });
10382
10383        // Emit UpdateTab event
10384        cx.run_until_parked();
10385        item.update(cx, |_, cx| {
10386            cx.emit(ItemEvent::UpdateTab);
10387        });
10388
10389        // Allow any potential close operation to complete
10390        cx.run_until_parked();
10391
10392        // Verify the item remains open (with strikethrough)
10393        pane.read_with(cx, |pane, _| {
10394            assert_eq!(
10395                pane.items().count(),
10396                1,
10397                "Item should remain open when close_on_disk_deletion is disabled"
10398            );
10399        });
10400
10401        // Verify the item shows as deleted
10402        item.read_with(cx, |item, _| {
10403            assert!(
10404                item.has_deleted_file,
10405                "Item should be marked as having deleted file"
10406            );
10407        });
10408    }
10409
10410    /// Tests that dirty files are not automatically closed when deleted from disk,
10411    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
10412    /// unsaved changes without being prompted.
10413    #[gpui::test]
10414    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
10415        init_test(cx);
10416
10417        // Enable the close_on_file_delete setting
10418        cx.update_global(|store: &mut SettingsStore, cx| {
10419            store.update_user_settings(cx, |settings| {
10420                settings.workspace.close_on_file_delete = Some(true);
10421            });
10422        });
10423
10424        let fs = FakeFs::new(cx.background_executor.clone());
10425        let project = Project::test(fs, [], cx).await;
10426        let (workspace, cx) =
10427            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10428        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10429
10430        // Create a dirty test item
10431        let item = cx.new(|cx| {
10432            TestItem::new(cx)
10433                .with_dirty(true)
10434                .with_label("test.txt")
10435                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10436        });
10437
10438        // Add item to workspace
10439        workspace.update_in(cx, |workspace, window, cx| {
10440            workspace.add_item(
10441                pane.clone(),
10442                Box::new(item.clone()),
10443                None,
10444                false,
10445                false,
10446                window,
10447                cx,
10448            );
10449        });
10450
10451        // Simulate file deletion
10452        item.update(cx, |item, _| {
10453            item.set_has_deleted_file(true);
10454        });
10455
10456        // Emit UpdateTab event to trigger the close behavior
10457        cx.run_until_parked();
10458        item.update(cx, |_, cx| {
10459            cx.emit(ItemEvent::UpdateTab);
10460        });
10461
10462        // Allow any potential close operation to complete
10463        cx.run_until_parked();
10464
10465        // Verify the item remains open (dirty files are not auto-closed)
10466        pane.read_with(cx, |pane, _| {
10467            assert_eq!(
10468                pane.items().count(),
10469                1,
10470                "Dirty items should not be automatically closed even when file is deleted"
10471            );
10472        });
10473
10474        // Verify the item is marked as deleted and still dirty
10475        item.read_with(cx, |item, _| {
10476            assert!(
10477                item.has_deleted_file,
10478                "Item should be marked as having deleted file"
10479            );
10480            assert!(item.is_dirty, "Item should still be dirty");
10481        });
10482    }
10483
10484    /// Tests that navigation history is cleaned up when files are auto-closed
10485    /// due to deletion from disk.
10486    #[gpui::test]
10487    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
10488        init_test(cx);
10489
10490        // Enable the close_on_file_delete setting
10491        cx.update_global(|store: &mut SettingsStore, cx| {
10492            store.update_user_settings(cx, |settings| {
10493                settings.workspace.close_on_file_delete = Some(true);
10494            });
10495        });
10496
10497        let fs = FakeFs::new(cx.background_executor.clone());
10498        let project = Project::test(fs, [], cx).await;
10499        let (workspace, cx) =
10500            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10501        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10502
10503        // Create test items
10504        let item1 = cx.new(|cx| {
10505            TestItem::new(cx)
10506                .with_label("test1.txt")
10507                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
10508        });
10509        let item1_id = item1.item_id();
10510
10511        let item2 = cx.new(|cx| {
10512            TestItem::new(cx)
10513                .with_label("test2.txt")
10514                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
10515        });
10516
10517        // Add items to workspace
10518        workspace.update_in(cx, |workspace, window, cx| {
10519            workspace.add_item(
10520                pane.clone(),
10521                Box::new(item1.clone()),
10522                None,
10523                false,
10524                false,
10525                window,
10526                cx,
10527            );
10528            workspace.add_item(
10529                pane.clone(),
10530                Box::new(item2.clone()),
10531                None,
10532                false,
10533                false,
10534                window,
10535                cx,
10536            );
10537        });
10538
10539        // Activate item1 to ensure it gets navigation entries
10540        pane.update_in(cx, |pane, window, cx| {
10541            pane.activate_item(0, true, true, window, cx);
10542        });
10543
10544        // Switch to item2 and back to create navigation history
10545        pane.update_in(cx, |pane, window, cx| {
10546            pane.activate_item(1, true, true, window, cx);
10547        });
10548        cx.run_until_parked();
10549
10550        pane.update_in(cx, |pane, window, cx| {
10551            pane.activate_item(0, true, true, window, cx);
10552        });
10553        cx.run_until_parked();
10554
10555        // Simulate file deletion for item1
10556        item1.update(cx, |item, _| {
10557            item.set_has_deleted_file(true);
10558        });
10559
10560        // Emit UpdateTab event to trigger the close behavior
10561        item1.update(cx, |_, cx| {
10562            cx.emit(ItemEvent::UpdateTab);
10563        });
10564        cx.run_until_parked();
10565
10566        // Verify item1 was closed
10567        pane.read_with(cx, |pane, _| {
10568            assert_eq!(
10569                pane.items().count(),
10570                1,
10571                "Should have 1 item remaining after auto-close"
10572            );
10573        });
10574
10575        // Check navigation history after close
10576        let has_item = pane.read_with(cx, |pane, cx| {
10577            let mut has_item = false;
10578            pane.nav_history().for_each_entry(cx, |entry, _| {
10579                if entry.item.id() == item1_id {
10580                    has_item = true;
10581                }
10582            });
10583            has_item
10584        });
10585
10586        assert!(
10587            !has_item,
10588            "Navigation history should not contain closed item entries"
10589        );
10590    }
10591
10592    #[gpui::test]
10593    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
10594        cx: &mut TestAppContext,
10595    ) {
10596        init_test(cx);
10597
10598        let fs = FakeFs::new(cx.background_executor.clone());
10599        let project = Project::test(fs, [], cx).await;
10600        let (workspace, cx) =
10601            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10602        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10603
10604        let dirty_regular_buffer = cx.new(|cx| {
10605            TestItem::new(cx)
10606                .with_dirty(true)
10607                .with_label("1.txt")
10608                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10609        });
10610        let dirty_regular_buffer_2 = cx.new(|cx| {
10611            TestItem::new(cx)
10612                .with_dirty(true)
10613                .with_label("2.txt")
10614                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10615        });
10616        let clear_regular_buffer = cx.new(|cx| {
10617            TestItem::new(cx)
10618                .with_label("3.txt")
10619                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10620        });
10621
10622        let dirty_multi_buffer = cx.new(|cx| {
10623            TestItem::new(cx)
10624                .with_dirty(true)
10625                .with_buffer_kind(ItemBufferKind::Multibuffer)
10626                .with_label("Fake Project Search")
10627                .with_project_items(&[
10628                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10629                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10630                    clear_regular_buffer.read(cx).project_items[0].clone(),
10631                ])
10632        });
10633        workspace.update_in(cx, |workspace, window, cx| {
10634            workspace.add_item(
10635                pane.clone(),
10636                Box::new(dirty_regular_buffer.clone()),
10637                None,
10638                false,
10639                false,
10640                window,
10641                cx,
10642            );
10643            workspace.add_item(
10644                pane.clone(),
10645                Box::new(dirty_regular_buffer_2.clone()),
10646                None,
10647                false,
10648                false,
10649                window,
10650                cx,
10651            );
10652            workspace.add_item(
10653                pane.clone(),
10654                Box::new(dirty_multi_buffer.clone()),
10655                None,
10656                false,
10657                false,
10658                window,
10659                cx,
10660            );
10661        });
10662
10663        pane.update_in(cx, |pane, window, cx| {
10664            pane.activate_item(2, true, true, window, cx);
10665            assert_eq!(
10666                pane.active_item().unwrap().item_id(),
10667                dirty_multi_buffer.item_id(),
10668                "Should select the multi buffer in the pane"
10669            );
10670        });
10671        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10672            pane.close_active_item(
10673                &CloseActiveItem {
10674                    save_intent: None,
10675                    close_pinned: false,
10676                },
10677                window,
10678                cx,
10679            )
10680        });
10681        cx.background_executor.run_until_parked();
10682        assert!(
10683            !cx.has_pending_prompt(),
10684            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
10685        );
10686        close_multi_buffer_task
10687            .await
10688            .expect("Closing multi buffer failed");
10689        pane.update(cx, |pane, cx| {
10690            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
10691            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
10692            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
10693            assert_eq!(
10694                pane.items()
10695                    .map(|item| item.item_id())
10696                    .sorted()
10697                    .collect::<Vec<_>>(),
10698                vec![
10699                    dirty_regular_buffer.item_id(),
10700                    dirty_regular_buffer_2.item_id(),
10701                ],
10702                "Should have no multi buffer left in the pane"
10703            );
10704            assert!(dirty_regular_buffer.read(cx).is_dirty);
10705            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
10706        });
10707    }
10708
10709    #[gpui::test]
10710    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
10711        init_test(cx);
10712        let fs = FakeFs::new(cx.executor());
10713        let project = Project::test(fs, [], cx).await;
10714        let (workspace, cx) =
10715            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10716
10717        // Add a new panel to the right dock, opening the dock and setting the
10718        // focus to the new panel.
10719        let panel = workspace.update_in(cx, |workspace, window, cx| {
10720            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
10721            workspace.add_panel(panel.clone(), window, cx);
10722
10723            workspace
10724                .right_dock()
10725                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
10726
10727            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10728
10729            panel
10730        });
10731
10732        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10733        // panel to the next valid position which, in this case, is the left
10734        // dock.
10735        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10736        workspace.update(cx, |workspace, cx| {
10737            assert!(workspace.left_dock().read(cx).is_open());
10738            assert_eq!(panel.read(cx).position, DockPosition::Left);
10739        });
10740
10741        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10742        // panel to the next valid position which, in this case, is the bottom
10743        // dock.
10744        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10745        workspace.update(cx, |workspace, cx| {
10746            assert!(workspace.bottom_dock().read(cx).is_open());
10747            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
10748        });
10749
10750        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
10751        // around moving the panel to its initial position, the right dock.
10752        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10753        workspace.update(cx, |workspace, cx| {
10754            assert!(workspace.right_dock().read(cx).is_open());
10755            assert_eq!(panel.read(cx).position, DockPosition::Right);
10756        });
10757
10758        // Remove focus from the panel, ensuring that, if the panel is not
10759        // focused, the `MoveFocusedPanelToNextPosition` action does not update
10760        // the panel's position, so the panel is still in the right dock.
10761        workspace.update_in(cx, |workspace, window, cx| {
10762            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10763        });
10764
10765        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10766        workspace.update(cx, |workspace, cx| {
10767            assert!(workspace.right_dock().read(cx).is_open());
10768            assert_eq!(panel.read(cx).position, DockPosition::Right);
10769        });
10770    }
10771
10772    #[gpui::test]
10773    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
10774        init_test(cx);
10775
10776        let fs = FakeFs::new(cx.executor());
10777        let project = Project::test(fs, [], cx).await;
10778        let (workspace, cx) =
10779            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10780
10781        let item_1 = cx.new(|cx| {
10782            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10783        });
10784        workspace.update_in(cx, |workspace, window, cx| {
10785            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10786            workspace.move_item_to_pane_in_direction(
10787                &MoveItemToPaneInDirection {
10788                    direction: SplitDirection::Right,
10789                    focus: true,
10790                    clone: false,
10791                },
10792                window,
10793                cx,
10794            );
10795            workspace.move_item_to_pane_at_index(
10796                &MoveItemToPane {
10797                    destination: 3,
10798                    focus: true,
10799                    clone: false,
10800                },
10801                window,
10802                cx,
10803            );
10804
10805            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
10806            assert_eq!(
10807                pane_items_paths(&workspace.active_pane, cx),
10808                vec!["first.txt".to_string()],
10809                "Single item was not moved anywhere"
10810            );
10811        });
10812
10813        let item_2 = cx.new(|cx| {
10814            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
10815        });
10816        workspace.update_in(cx, |workspace, window, cx| {
10817            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
10818            assert_eq!(
10819                pane_items_paths(&workspace.panes[0], cx),
10820                vec!["first.txt".to_string(), "second.txt".to_string()],
10821            );
10822            workspace.move_item_to_pane_in_direction(
10823                &MoveItemToPaneInDirection {
10824                    direction: SplitDirection::Right,
10825                    focus: true,
10826                    clone: false,
10827                },
10828                window,
10829                cx,
10830            );
10831
10832            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
10833            assert_eq!(
10834                pane_items_paths(&workspace.panes[0], cx),
10835                vec!["first.txt".to_string()],
10836                "After moving, one item should be left in the original pane"
10837            );
10838            assert_eq!(
10839                pane_items_paths(&workspace.panes[1], cx),
10840                vec!["second.txt".to_string()],
10841                "New item should have been moved to the new pane"
10842            );
10843        });
10844
10845        let item_3 = cx.new(|cx| {
10846            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
10847        });
10848        workspace.update_in(cx, |workspace, window, cx| {
10849            let original_pane = workspace.panes[0].clone();
10850            workspace.set_active_pane(&original_pane, window, cx);
10851            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
10852            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
10853            assert_eq!(
10854                pane_items_paths(&workspace.active_pane, cx),
10855                vec!["first.txt".to_string(), "third.txt".to_string()],
10856                "New pane should be ready to move one item out"
10857            );
10858
10859            workspace.move_item_to_pane_at_index(
10860                &MoveItemToPane {
10861                    destination: 3,
10862                    focus: true,
10863                    clone: false,
10864                },
10865                window,
10866                cx,
10867            );
10868            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
10869            assert_eq!(
10870                pane_items_paths(&workspace.active_pane, cx),
10871                vec!["first.txt".to_string()],
10872                "After moving, one item should be left in the original pane"
10873            );
10874            assert_eq!(
10875                pane_items_paths(&workspace.panes[1], cx),
10876                vec!["second.txt".to_string()],
10877                "Previously created pane should be unchanged"
10878            );
10879            assert_eq!(
10880                pane_items_paths(&workspace.panes[2], cx),
10881                vec!["third.txt".to_string()],
10882                "New item should have been moved to the new pane"
10883            );
10884        });
10885    }
10886
10887    #[gpui::test]
10888    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
10889        init_test(cx);
10890
10891        let fs = FakeFs::new(cx.executor());
10892        let project = Project::test(fs, [], cx).await;
10893        let (workspace, cx) =
10894            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10895
10896        let item_1 = cx.new(|cx| {
10897            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10898        });
10899        workspace.update_in(cx, |workspace, window, cx| {
10900            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10901            workspace.move_item_to_pane_in_direction(
10902                &MoveItemToPaneInDirection {
10903                    direction: SplitDirection::Right,
10904                    focus: true,
10905                    clone: true,
10906                },
10907                window,
10908                cx,
10909            );
10910            workspace.move_item_to_pane_at_index(
10911                &MoveItemToPane {
10912                    destination: 3,
10913                    focus: true,
10914                    clone: true,
10915                },
10916                window,
10917                cx,
10918            );
10919        });
10920        cx.run_until_parked();
10921
10922        workspace.update(cx, |workspace, cx| {
10923            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
10924            for pane in workspace.panes() {
10925                assert_eq!(
10926                    pane_items_paths(pane, cx),
10927                    vec!["first.txt".to_string()],
10928                    "Single item exists in all panes"
10929                );
10930            }
10931        });
10932
10933        // verify that the active pane has been updated after waiting for the
10934        // pane focus event to fire and resolve
10935        workspace.read_with(cx, |workspace, _app| {
10936            assert_eq!(
10937                workspace.active_pane(),
10938                &workspace.panes[2],
10939                "The third pane should be the active one: {:?}",
10940                workspace.panes
10941            );
10942        })
10943    }
10944
10945    mod register_project_item_tests {
10946
10947        use super::*;
10948
10949        // View
10950        struct TestPngItemView {
10951            focus_handle: FocusHandle,
10952        }
10953        // Model
10954        struct TestPngItem {}
10955
10956        impl project::ProjectItem for TestPngItem {
10957            fn try_open(
10958                _project: &Entity<Project>,
10959                path: &ProjectPath,
10960                cx: &mut App,
10961            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
10962                if path.path.extension().unwrap() == "png" {
10963                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
10964                } else {
10965                    None
10966                }
10967            }
10968
10969            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
10970                None
10971            }
10972
10973            fn project_path(&self, _: &App) -> Option<ProjectPath> {
10974                None
10975            }
10976
10977            fn is_dirty(&self) -> bool {
10978                false
10979            }
10980        }
10981
10982        impl Item for TestPngItemView {
10983            type Event = ();
10984            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10985                "".into()
10986            }
10987        }
10988        impl EventEmitter<()> for TestPngItemView {}
10989        impl Focusable for TestPngItemView {
10990            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10991                self.focus_handle.clone()
10992            }
10993        }
10994
10995        impl Render for TestPngItemView {
10996            fn render(
10997                &mut self,
10998                _window: &mut Window,
10999                _cx: &mut Context<Self>,
11000            ) -> impl IntoElement {
11001                Empty
11002            }
11003        }
11004
11005        impl ProjectItem for TestPngItemView {
11006            type Item = TestPngItem;
11007
11008            fn for_project_item(
11009                _project: Entity<Project>,
11010                _pane: Option<&Pane>,
11011                _item: Entity<Self::Item>,
11012                _: &mut Window,
11013                cx: &mut Context<Self>,
11014            ) -> Self
11015            where
11016                Self: Sized,
11017            {
11018                Self {
11019                    focus_handle: cx.focus_handle(),
11020                }
11021            }
11022        }
11023
11024        // View
11025        struct TestIpynbItemView {
11026            focus_handle: FocusHandle,
11027        }
11028        // Model
11029        struct TestIpynbItem {}
11030
11031        impl project::ProjectItem for TestIpynbItem {
11032            fn try_open(
11033                _project: &Entity<Project>,
11034                path: &ProjectPath,
11035                cx: &mut App,
11036            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11037                if path.path.extension().unwrap() == "ipynb" {
11038                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
11039                } else {
11040                    None
11041                }
11042            }
11043
11044            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11045                None
11046            }
11047
11048            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11049                None
11050            }
11051
11052            fn is_dirty(&self) -> bool {
11053                false
11054            }
11055        }
11056
11057        impl Item for TestIpynbItemView {
11058            type Event = ();
11059            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11060                "".into()
11061            }
11062        }
11063        impl EventEmitter<()> for TestIpynbItemView {}
11064        impl Focusable for TestIpynbItemView {
11065            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11066                self.focus_handle.clone()
11067            }
11068        }
11069
11070        impl Render for TestIpynbItemView {
11071            fn render(
11072                &mut self,
11073                _window: &mut Window,
11074                _cx: &mut Context<Self>,
11075            ) -> impl IntoElement {
11076                Empty
11077            }
11078        }
11079
11080        impl ProjectItem for TestIpynbItemView {
11081            type Item = TestIpynbItem;
11082
11083            fn for_project_item(
11084                _project: Entity<Project>,
11085                _pane: Option<&Pane>,
11086                _item: Entity<Self::Item>,
11087                _: &mut Window,
11088                cx: &mut Context<Self>,
11089            ) -> Self
11090            where
11091                Self: Sized,
11092            {
11093                Self {
11094                    focus_handle: cx.focus_handle(),
11095                }
11096            }
11097        }
11098
11099        struct TestAlternatePngItemView {
11100            focus_handle: FocusHandle,
11101        }
11102
11103        impl Item for TestAlternatePngItemView {
11104            type Event = ();
11105            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11106                "".into()
11107            }
11108        }
11109
11110        impl EventEmitter<()> for TestAlternatePngItemView {}
11111        impl Focusable for TestAlternatePngItemView {
11112            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11113                self.focus_handle.clone()
11114            }
11115        }
11116
11117        impl Render for TestAlternatePngItemView {
11118            fn render(
11119                &mut self,
11120                _window: &mut Window,
11121                _cx: &mut Context<Self>,
11122            ) -> impl IntoElement {
11123                Empty
11124            }
11125        }
11126
11127        impl ProjectItem for TestAlternatePngItemView {
11128            type Item = TestPngItem;
11129
11130            fn for_project_item(
11131                _project: Entity<Project>,
11132                _pane: Option<&Pane>,
11133                _item: Entity<Self::Item>,
11134                _: &mut Window,
11135                cx: &mut Context<Self>,
11136            ) -> Self
11137            where
11138                Self: Sized,
11139            {
11140                Self {
11141                    focus_handle: cx.focus_handle(),
11142                }
11143            }
11144        }
11145
11146        #[gpui::test]
11147        async fn test_register_project_item(cx: &mut TestAppContext) {
11148            init_test(cx);
11149
11150            cx.update(|cx| {
11151                register_project_item::<TestPngItemView>(cx);
11152                register_project_item::<TestIpynbItemView>(cx);
11153            });
11154
11155            let fs = FakeFs::new(cx.executor());
11156            fs.insert_tree(
11157                "/root1",
11158                json!({
11159                    "one.png": "BINARYDATAHERE",
11160                    "two.ipynb": "{ totally a notebook }",
11161                    "three.txt": "editing text, sure why not?"
11162                }),
11163            )
11164            .await;
11165
11166            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11167            let (workspace, cx) =
11168                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11169
11170            let worktree_id = project.update(cx, |project, cx| {
11171                project.worktrees(cx).next().unwrap().read(cx).id()
11172            });
11173
11174            let handle = workspace
11175                .update_in(cx, |workspace, window, cx| {
11176                    let project_path = (worktree_id, rel_path("one.png"));
11177                    workspace.open_path(project_path, None, true, window, cx)
11178                })
11179                .await
11180                .unwrap();
11181
11182            // Now we can check if the handle we got back errored or not
11183            assert_eq!(
11184                handle.to_any().entity_type(),
11185                TypeId::of::<TestPngItemView>()
11186            );
11187
11188            let handle = workspace
11189                .update_in(cx, |workspace, window, cx| {
11190                    let project_path = (worktree_id, rel_path("two.ipynb"));
11191                    workspace.open_path(project_path, None, true, window, cx)
11192                })
11193                .await
11194                .unwrap();
11195
11196            assert_eq!(
11197                handle.to_any().entity_type(),
11198                TypeId::of::<TestIpynbItemView>()
11199            );
11200
11201            let handle = workspace
11202                .update_in(cx, |workspace, window, cx| {
11203                    let project_path = (worktree_id, rel_path("three.txt"));
11204                    workspace.open_path(project_path, None, true, window, cx)
11205                })
11206                .await;
11207            assert!(handle.is_err());
11208        }
11209
11210        #[gpui::test]
11211        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
11212            init_test(cx);
11213
11214            cx.update(|cx| {
11215                register_project_item::<TestPngItemView>(cx);
11216                register_project_item::<TestAlternatePngItemView>(cx);
11217            });
11218
11219            let fs = FakeFs::new(cx.executor());
11220            fs.insert_tree(
11221                "/root1",
11222                json!({
11223                    "one.png": "BINARYDATAHERE",
11224                    "two.ipynb": "{ totally a notebook }",
11225                    "three.txt": "editing text, sure why not?"
11226                }),
11227            )
11228            .await;
11229            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11230            let (workspace, cx) =
11231                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11232            let worktree_id = project.update(cx, |project, cx| {
11233                project.worktrees(cx).next().unwrap().read(cx).id()
11234            });
11235
11236            let handle = workspace
11237                .update_in(cx, |workspace, window, cx| {
11238                    let project_path = (worktree_id, rel_path("one.png"));
11239                    workspace.open_path(project_path, None, true, window, cx)
11240                })
11241                .await
11242                .unwrap();
11243
11244            // This _must_ be the second item registered
11245            assert_eq!(
11246                handle.to_any().entity_type(),
11247                TypeId::of::<TestAlternatePngItemView>()
11248            );
11249
11250            let handle = workspace
11251                .update_in(cx, |workspace, window, cx| {
11252                    let project_path = (worktree_id, rel_path("three.txt"));
11253                    workspace.open_path(project_path, None, true, window, cx)
11254                })
11255                .await;
11256            assert!(handle.is_err());
11257        }
11258    }
11259
11260    #[gpui::test]
11261    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
11262        init_test(cx);
11263
11264        let fs = FakeFs::new(cx.executor());
11265        let project = Project::test(fs, [], cx).await;
11266        let (workspace, _cx) =
11267            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11268
11269        // Test with status bar shown (default)
11270        workspace.read_with(cx, |workspace, cx| {
11271            let visible = workspace.status_bar_visible(cx);
11272            assert!(visible, "Status bar should be visible by default");
11273        });
11274
11275        // Test with status bar hidden
11276        cx.update_global(|store: &mut SettingsStore, cx| {
11277            store.update_user_settings(cx, |settings| {
11278                settings.status_bar.get_or_insert_default().show = Some(false);
11279            });
11280        });
11281
11282        workspace.read_with(cx, |workspace, cx| {
11283            let visible = workspace.status_bar_visible(cx);
11284            assert!(!visible, "Status bar should be hidden when show is false");
11285        });
11286
11287        // Test with status bar shown explicitly
11288        cx.update_global(|store: &mut SettingsStore, cx| {
11289            store.update_user_settings(cx, |settings| {
11290                settings.status_bar.get_or_insert_default().show = Some(true);
11291            });
11292        });
11293
11294        workspace.read_with(cx, |workspace, cx| {
11295            let visible = workspace.status_bar_visible(cx);
11296            assert!(visible, "Status bar should be visible when show is true");
11297        });
11298    }
11299
11300    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
11301        pane.read(cx)
11302            .items()
11303            .flat_map(|item| {
11304                item.project_paths(cx)
11305                    .into_iter()
11306                    .map(|path| path.path.display(PathStyle::local()).into_owned())
11307            })
11308            .collect()
11309    }
11310
11311    pub fn init_test(cx: &mut TestAppContext) {
11312        cx.update(|cx| {
11313            let settings_store = SettingsStore::test(cx);
11314            cx.set_global(settings_store);
11315            theme::init(theme::LoadThemes::JustBase, cx);
11316            language::init(cx);
11317            crate::init_settings(cx);
11318            Project::init_settings(cx);
11319        });
11320    }
11321
11322    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
11323        let item = TestProjectItem::new(id, path, cx);
11324        item.update(cx, |item, _| {
11325            item.is_dirty = true;
11326        });
11327        item
11328    }
11329}