workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod invalid_buffer_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::*;
   64use persistence::{DB, SerializedWindowBounds, model::SerializedWorkspace};
   65pub use persistence::{
   66    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   67    model::{ItemId, SerializedWorkspaceLocation},
   68};
   69use postage::stream::Stream;
   70use project::{
   71    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   72    WorktreeSettings,
   73    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   74    toolchain_store::ToolchainStoreEvent,
   75};
   76use remote::{RemoteClientDelegate, RemoteConnectionOptions, remote_client::ConnectionIdentifier};
   77use schemars::JsonSchema;
   78use serde::Deserialize;
   79use session::AppSession;
   80use settings::{Settings, SettingsLocation, update_settings_file};
   81use shared_screen::SharedScreen;
   82use sqlez::{
   83    bindable::{Bind, Column, StaticColumnCount},
   84    statement::Statement,
   85};
   86use status_bar::StatusBar;
   87pub use status_bar::StatusItemView;
   88use std::{
   89    any::TypeId,
   90    borrow::Cow,
   91    cell::RefCell,
   92    cmp,
   93    collections::{VecDeque, hash_map::DefaultHasher},
   94    env,
   95    hash::{Hash, Hasher},
   96    path::{Path, PathBuf},
   97    process::ExitStatus,
   98    rc::Rc,
   99    sync::{Arc, LazyLock, Weak, atomic::AtomicUsize},
  100    time::Duration,
  101};
  102use task::{DebugScenario, SpawnInTerminal, TaskContext};
  103use theme::{ActiveTheme, SystemAppearance, ThemeSettings};
  104pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  105pub use ui;
  106use ui::{Window, prelude::*};
  107use util::{ResultExt, TryFutureExt, paths::SanitizedPath, serde::default_true};
  108use uuid::Uuid;
  109pub use workspace_settings::{
  110    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, TabBarSettings, WorkspaceSettings,
  111};
  112use zed_actions::{Spawn, feedback::FileBugReport};
  113
  114use crate::notifications::NotificationId;
  115use crate::persistence::{
  116    SerializedAxis,
  117    model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  118};
  119
  120pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  121
  122static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  123    env::var("ZED_WINDOW_SIZE")
  124        .ok()
  125        .as_deref()
  126        .and_then(parse_pixel_size_env_var)
  127});
  128
  129static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  130    env::var("ZED_WINDOW_POSITION")
  131        .ok()
  132        .as_deref()
  133        .and_then(parse_pixel_position_env_var)
  134});
  135
  136pub trait TerminalProvider {
  137    fn spawn(
  138        &self,
  139        task: SpawnInTerminal,
  140        window: &mut Window,
  141        cx: &mut App,
  142    ) -> Task<Option<Result<ExitStatus>>>;
  143}
  144
  145pub trait DebuggerProvider {
  146    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  147    fn start_session(
  148        &self,
  149        definition: DebugScenario,
  150        task_context: TaskContext,
  151        active_buffer: Option<Entity<Buffer>>,
  152        worktree_id: Option<WorktreeId>,
  153        window: &mut Window,
  154        cx: &mut App,
  155    );
  156
  157    fn spawn_task_or_modal(
  158        &self,
  159        workspace: &mut Workspace,
  160        action: &Spawn,
  161        window: &mut Window,
  162        cx: &mut Context<Workspace>,
  163    );
  164
  165    fn task_scheduled(&self, cx: &mut App);
  166    fn debug_scenario_scheduled(&self, cx: &mut App);
  167    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  168
  169    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  170}
  171
  172actions!(
  173    workspace,
  174    [
  175        /// Activates the next pane in the workspace.
  176        ActivateNextPane,
  177        /// Activates the previous pane in the workspace.
  178        ActivatePreviousPane,
  179        /// Switches to the next window.
  180        ActivateNextWindow,
  181        /// Switches to the previous window.
  182        ActivatePreviousWindow,
  183        /// Adds a folder to the current project.
  184        AddFolderToProject,
  185        /// Clears all notifications.
  186        ClearAllNotifications,
  187        /// Closes the active dock.
  188        CloseActiveDock,
  189        /// Closes all docks.
  190        CloseAllDocks,
  191        /// Closes the current window.
  192        CloseWindow,
  193        /// Opens the feedback dialog.
  194        Feedback,
  195        /// Follows the next collaborator in the session.
  196        FollowNextCollaborator,
  197        /// Moves the focused panel to the next position.
  198        MoveFocusedPanelToNextPosition,
  199        /// Opens a new terminal in the center.
  200        NewCenterTerminal,
  201        /// Creates a new file.
  202        NewFile,
  203        /// Creates a new file in a vertical split.
  204        NewFileSplitVertical,
  205        /// Creates a new file in a horizontal split.
  206        NewFileSplitHorizontal,
  207        /// Opens a new search.
  208        NewSearch,
  209        /// Opens a new terminal.
  210        NewTerminal,
  211        /// Opens a new window.
  212        NewWindow,
  213        /// Opens a file or directory.
  214        Open,
  215        /// Opens multiple files.
  216        OpenFiles,
  217        /// Opens the current location in terminal.
  218        OpenInTerminal,
  219        /// Opens the component preview.
  220        OpenComponentPreview,
  221        /// Reloads the active item.
  222        ReloadActiveItem,
  223        /// Resets the active dock to its default size.
  224        ResetActiveDockSize,
  225        /// Resets all open docks to their default sizes.
  226        ResetOpenDocksSize,
  227        /// Reloads the application
  228        Reload,
  229        /// Saves the current file with a new name.
  230        SaveAs,
  231        /// Saves without formatting.
  232        SaveWithoutFormat,
  233        /// Shuts down all debug adapters.
  234        ShutdownDebugAdapters,
  235        /// Suppresses the current notification.
  236        SuppressNotification,
  237        /// Toggles the bottom dock.
  238        ToggleBottomDock,
  239        /// Toggles centered layout mode.
  240        ToggleCenteredLayout,
  241        /// Toggles edit prediction feature globally for all files.
  242        ToggleEditPrediction,
  243        /// Toggles the left dock.
  244        ToggleLeftDock,
  245        /// Toggles the right dock.
  246        ToggleRightDock,
  247        /// Toggles zoom on the active pane.
  248        ToggleZoom,
  249        /// Stops following a collaborator.
  250        Unfollow,
  251        /// Restores the banner.
  252        RestoreBanner,
  253        /// Toggles expansion of the selected item.
  254        ToggleExpandItem,
  255    ]
  256);
  257
  258/// Activates a specific pane by its index.
  259#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  260#[action(namespace = workspace)]
  261pub struct ActivatePane(pub usize);
  262
  263/// Moves an item to a specific pane by index.
  264#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  265#[action(namespace = workspace)]
  266#[serde(deny_unknown_fields)]
  267pub struct MoveItemToPane {
  268    #[serde(default = "default_1")]
  269    pub destination: usize,
  270    #[serde(default = "default_true")]
  271    pub focus: bool,
  272    #[serde(default)]
  273    pub clone: bool,
  274}
  275
  276fn default_1() -> usize {
  277    1
  278}
  279
  280/// Moves an item to a pane in the specified direction.
  281#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  282#[action(namespace = workspace)]
  283#[serde(deny_unknown_fields)]
  284pub struct MoveItemToPaneInDirection {
  285    #[serde(default = "default_right")]
  286    pub direction: SplitDirection,
  287    #[serde(default = "default_true")]
  288    pub focus: bool,
  289    #[serde(default)]
  290    pub clone: bool,
  291}
  292
  293fn default_right() -> SplitDirection {
  294    SplitDirection::Right
  295}
  296
  297/// Saves all open files in the workspace.
  298#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  299#[action(namespace = workspace)]
  300#[serde(deny_unknown_fields)]
  301pub struct SaveAll {
  302    #[serde(default)]
  303    pub save_intent: Option<SaveIntent>,
  304}
  305
  306/// Saves the current file with the specified options.
  307#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  308#[action(namespace = workspace)]
  309#[serde(deny_unknown_fields)]
  310pub struct Save {
  311    #[serde(default)]
  312    pub save_intent: Option<SaveIntent>,
  313}
  314
  315/// Closes all items and panes in the workspace.
  316#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  317#[action(namespace = workspace)]
  318#[serde(deny_unknown_fields)]
  319pub struct CloseAllItemsAndPanes {
  320    #[serde(default)]
  321    pub save_intent: Option<SaveIntent>,
  322}
  323
  324/// Closes all inactive tabs and panes in the workspace.
  325#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  326#[action(namespace = workspace)]
  327#[serde(deny_unknown_fields)]
  328pub struct CloseInactiveTabsAndPanes {
  329    #[serde(default)]
  330    pub save_intent: Option<SaveIntent>,
  331}
  332
  333/// Sends a sequence of keystrokes to the active element.
  334#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  335#[action(namespace = workspace)]
  336pub struct SendKeystrokes(pub String);
  337
  338actions!(
  339    project_symbols,
  340    [
  341        /// Toggles the project symbols search.
  342        #[action(name = "Toggle")]
  343        ToggleProjectSymbols
  344    ]
  345);
  346
  347/// Toggles the file finder interface.
  348#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  349#[action(namespace = file_finder, name = "Toggle")]
  350#[serde(deny_unknown_fields)]
  351pub struct ToggleFileFinder {
  352    #[serde(default)]
  353    pub separate_history: bool,
  354}
  355
  356/// Increases size of a currently focused dock by a given amount of pixels.
  357#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  358#[action(namespace = workspace)]
  359#[serde(deny_unknown_fields)]
  360pub struct IncreaseActiveDockSize {
  361    /// For 0px parameter, uses UI font size value.
  362    #[serde(default)]
  363    pub px: u32,
  364}
  365
  366/// Decreases size of a currently focused dock by a given amount of pixels.
  367#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  368#[action(namespace = workspace)]
  369#[serde(deny_unknown_fields)]
  370pub struct DecreaseActiveDockSize {
  371    /// For 0px parameter, uses UI font size value.
  372    #[serde(default)]
  373    pub px: u32,
  374}
  375
  376/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  377#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  378#[action(namespace = workspace)]
  379#[serde(deny_unknown_fields)]
  380pub struct IncreaseOpenDocksSize {
  381    /// For 0px parameter, uses UI font size value.
  382    #[serde(default)]
  383    pub px: u32,
  384}
  385
  386/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  387#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  388#[action(namespace = workspace)]
  389#[serde(deny_unknown_fields)]
  390pub struct DecreaseOpenDocksSize {
  391    /// For 0px parameter, uses UI font size value.
  392    #[serde(default)]
  393    pub px: u32,
  394}
  395
  396actions!(
  397    workspace,
  398    [
  399        /// Activates the pane to the left.
  400        ActivatePaneLeft,
  401        /// Activates the pane to the right.
  402        ActivatePaneRight,
  403        /// Activates the pane above.
  404        ActivatePaneUp,
  405        /// Activates the pane below.
  406        ActivatePaneDown,
  407        /// Swaps the current pane with the one to the left.
  408        SwapPaneLeft,
  409        /// Swaps the current pane with the one to the right.
  410        SwapPaneRight,
  411        /// Swaps the current pane with the one above.
  412        SwapPaneUp,
  413        /// Swaps the current pane with the one below.
  414        SwapPaneDown,
  415    ]
  416);
  417
  418#[derive(PartialEq, Eq, Debug)]
  419pub enum CloseIntent {
  420    /// Quit the program entirely.
  421    Quit,
  422    /// Close a window.
  423    CloseWindow,
  424    /// Replace the workspace in an existing window.
  425    ReplaceWindow,
  426}
  427
  428#[derive(Clone)]
  429pub struct Toast {
  430    id: NotificationId,
  431    msg: Cow<'static, str>,
  432    autohide: bool,
  433    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  434}
  435
  436impl Toast {
  437    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  438        Toast {
  439            id,
  440            msg: msg.into(),
  441            on_click: None,
  442            autohide: false,
  443        }
  444    }
  445
  446    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  447    where
  448        M: Into<Cow<'static, str>>,
  449        F: Fn(&mut Window, &mut App) + 'static,
  450    {
  451        self.on_click = Some((message.into(), Arc::new(on_click)));
  452        self
  453    }
  454
  455    pub fn autohide(mut self) -> Self {
  456        self.autohide = true;
  457        self
  458    }
  459}
  460
  461impl PartialEq for Toast {
  462    fn eq(&self, other: &Self) -> bool {
  463        self.id == other.id
  464            && self.msg == other.msg
  465            && self.on_click.is_some() == other.on_click.is_some()
  466    }
  467}
  468
  469/// Opens a new terminal with the specified working directory.
  470#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  471#[action(namespace = workspace)]
  472#[serde(deny_unknown_fields)]
  473pub struct OpenTerminal {
  474    pub working_directory: PathBuf,
  475}
  476
  477#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  478pub struct WorkspaceId(i64);
  479
  480impl StaticColumnCount for WorkspaceId {}
  481impl Bind for WorkspaceId {
  482    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  483        self.0.bind(statement, start_index)
  484    }
  485}
  486impl Column for WorkspaceId {
  487    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  488        i64::column(statement, start_index)
  489            .map(|(i, next_index)| (Self(i), next_index))
  490            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  491    }
  492}
  493impl From<WorkspaceId> for i64 {
  494    fn from(val: WorkspaceId) -> Self {
  495        val.0
  496    }
  497}
  498
  499pub fn init_settings(cx: &mut App) {
  500    WorkspaceSettings::register(cx);
  501    ItemSettings::register(cx);
  502    PreviewTabsSettings::register(cx);
  503    TabBarSettings::register(cx);
  504}
  505
  506fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  507    let paths = cx.prompt_for_paths(options);
  508    cx.spawn(
  509        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  510            Ok(Some(paths)) => {
  511                cx.update(|cx| {
  512                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  513                })
  514                .ok();
  515            }
  516            Ok(None) => {}
  517            Err(err) => {
  518                util::log_err(&err);
  519                cx.update(|cx| {
  520                    if let Some(workspace_window) = cx
  521                        .active_window()
  522                        .and_then(|window| window.downcast::<Workspace>())
  523                    {
  524                        workspace_window
  525                            .update(cx, |workspace, _, cx| {
  526                                workspace.show_portal_error(err.to_string(), cx);
  527                            })
  528                            .ok();
  529                    }
  530                })
  531                .ok();
  532            }
  533        },
  534    )
  535    .detach();
  536}
  537
  538pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  539    init_settings(cx);
  540    component::init();
  541    theme_preview::init(cx);
  542    toast_layer::init(cx);
  543    history_manager::init(cx);
  544
  545    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx));
  546    cx.on_action(|_: &Reload, cx| reload(cx));
  547
  548    cx.on_action({
  549        let app_state = Arc::downgrade(&app_state);
  550        move |_: &Open, cx: &mut App| {
  551            if let Some(app_state) = app_state.upgrade() {
  552                prompt_and_open_paths(
  553                    app_state,
  554                    PathPromptOptions {
  555                        files: true,
  556                        directories: true,
  557                        multiple: true,
  558                        prompt: None,
  559                    },
  560                    cx,
  561                );
  562            }
  563        }
  564    });
  565    cx.on_action({
  566        let app_state = Arc::downgrade(&app_state);
  567        move |_: &OpenFiles, cx: &mut App| {
  568            let directories = cx.can_select_mixed_files_and_dirs();
  569            if let Some(app_state) = app_state.upgrade() {
  570                prompt_and_open_paths(
  571                    app_state,
  572                    PathPromptOptions {
  573                        files: true,
  574                        directories,
  575                        multiple: true,
  576                        prompt: None,
  577                    },
  578                    cx,
  579                );
  580            }
  581        }
  582    });
  583}
  584
  585type BuildProjectItemFn =
  586    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  587
  588type BuildProjectItemForPathFn =
  589    fn(
  590        &Entity<Project>,
  591        &ProjectPath,
  592        &mut Window,
  593        &mut App,
  594    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  595
  596#[derive(Clone, Default)]
  597struct ProjectItemRegistry {
  598    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  599    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  600}
  601
  602impl ProjectItemRegistry {
  603    fn register<T: ProjectItem>(&mut self) {
  604        self.build_project_item_fns_by_type.insert(
  605            TypeId::of::<T::Item>(),
  606            |item, project, pane, window, cx| {
  607                let item = item.downcast().unwrap();
  608                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  609                    as Box<dyn ItemHandle>
  610            },
  611        );
  612        self.build_project_item_for_path_fns
  613            .push(|project, project_path, window, cx| {
  614                let project_path = project_path.clone();
  615                let is_file = project
  616                    .read(cx)
  617                    .entry_for_path(&project_path, cx)
  618                    .is_some_and(|entry| entry.is_file());
  619                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  620                let is_local = project.read(cx).is_local();
  621                let project_item =
  622                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  623                let project = project.clone();
  624                Some(window.spawn(cx, async move |cx| {
  625                    match project_item.await.with_context(|| {
  626                        format!(
  627                            "opening project path {:?}",
  628                            entry_abs_path.as_deref().unwrap_or(&project_path.path)
  629                        )
  630                    }) {
  631                        Ok(project_item) => {
  632                            let project_item = project_item;
  633                            let project_entry_id: Option<ProjectEntryId> =
  634                                project_item.read_with(cx, project::ProjectItem::entry_id)?;
  635                            let build_workspace_item = Box::new(
  636                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  637                                    Box::new(cx.new(|cx| {
  638                                        T::for_project_item(
  639                                            project,
  640                                            Some(pane),
  641                                            project_item,
  642                                            window,
  643                                            cx,
  644                                        )
  645                                    })) as Box<dyn ItemHandle>
  646                                },
  647                            ) as Box<_>;
  648                            Ok((project_entry_id, build_workspace_item))
  649                        }
  650                        Err(e) => {
  651                            if e.error_code() == ErrorCode::Internal {
  652                                if let Some(abs_path) =
  653                                    entry_abs_path.as_deref().filter(|_| is_file)
  654                                {
  655                                    if let Some(broken_project_item_view) =
  656                                        cx.update(|window, cx| {
  657                                            T::for_broken_project_item(
  658                                                abs_path, is_local, &e, window, cx,
  659                                            )
  660                                        })?
  661                                    {
  662                                        let build_workspace_item = Box::new(
  663                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  664                                                cx.new(|_| broken_project_item_view).boxed_clone()
  665                                            },
  666                                        )
  667                                        as Box<_>;
  668                                        return Ok((None, build_workspace_item));
  669                                    }
  670                                }
  671                            }
  672                            Err(e)
  673                        }
  674                    }
  675                }))
  676            });
  677    }
  678
  679    fn open_path(
  680        &self,
  681        project: &Entity<Project>,
  682        path: &ProjectPath,
  683        window: &mut Window,
  684        cx: &mut App,
  685    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  686        let Some(open_project_item) = self
  687            .build_project_item_for_path_fns
  688            .iter()
  689            .rev()
  690            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  691        else {
  692            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  693        };
  694        open_project_item
  695    }
  696
  697    fn build_item<T: project::ProjectItem>(
  698        &self,
  699        item: Entity<T>,
  700        project: Entity<Project>,
  701        pane: Option<&Pane>,
  702        window: &mut Window,
  703        cx: &mut App,
  704    ) -> Option<Box<dyn ItemHandle>> {
  705        let build = self
  706            .build_project_item_fns_by_type
  707            .get(&TypeId::of::<T>())?;
  708        Some(build(item.into_any(), project, pane, window, cx))
  709    }
  710}
  711
  712type WorkspaceItemBuilder =
  713    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  714
  715impl Global for ProjectItemRegistry {}
  716
  717/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  718/// items will get a chance to open the file, starting from the project item that
  719/// was added last.
  720pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  721    cx.default_global::<ProjectItemRegistry>().register::<I>();
  722}
  723
  724#[derive(Default)]
  725pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  726
  727struct FollowableViewDescriptor {
  728    from_state_proto: fn(
  729        Entity<Workspace>,
  730        ViewId,
  731        &mut Option<proto::view::Variant>,
  732        &mut Window,
  733        &mut App,
  734    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  735    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  736}
  737
  738impl Global for FollowableViewRegistry {}
  739
  740impl FollowableViewRegistry {
  741    pub fn register<I: FollowableItem>(cx: &mut App) {
  742        cx.default_global::<Self>().0.insert(
  743            TypeId::of::<I>(),
  744            FollowableViewDescriptor {
  745                from_state_proto: |workspace, id, state, window, cx| {
  746                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  747                        cx.foreground_executor()
  748                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  749                    })
  750                },
  751                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  752            },
  753        );
  754    }
  755
  756    pub fn from_state_proto(
  757        workspace: Entity<Workspace>,
  758        view_id: ViewId,
  759        mut state: Option<proto::view::Variant>,
  760        window: &mut Window,
  761        cx: &mut App,
  762    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  763        cx.update_default_global(|this: &mut Self, cx| {
  764            this.0.values().find_map(|descriptor| {
  765                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  766            })
  767        })
  768    }
  769
  770    pub fn to_followable_view(
  771        view: impl Into<AnyView>,
  772        cx: &App,
  773    ) -> Option<Box<dyn FollowableItemHandle>> {
  774        let this = cx.try_global::<Self>()?;
  775        let view = view.into();
  776        let descriptor = this.0.get(&view.entity_type())?;
  777        Some((descriptor.to_followable_view)(&view))
  778    }
  779}
  780
  781#[derive(Copy, Clone)]
  782struct SerializableItemDescriptor {
  783    deserialize: fn(
  784        Entity<Project>,
  785        WeakEntity<Workspace>,
  786        WorkspaceId,
  787        ItemId,
  788        &mut Window,
  789        &mut Context<Pane>,
  790    ) -> Task<Result<Box<dyn ItemHandle>>>,
  791    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  792    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  793}
  794
  795#[derive(Default)]
  796struct SerializableItemRegistry {
  797    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  798    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  799}
  800
  801impl Global for SerializableItemRegistry {}
  802
  803impl SerializableItemRegistry {
  804    fn deserialize(
  805        item_kind: &str,
  806        project: Entity<Project>,
  807        workspace: WeakEntity<Workspace>,
  808        workspace_id: WorkspaceId,
  809        item_item: ItemId,
  810        window: &mut Window,
  811        cx: &mut Context<Pane>,
  812    ) -> Task<Result<Box<dyn ItemHandle>>> {
  813        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  814            return Task::ready(Err(anyhow!(
  815                "cannot deserialize {}, descriptor not found",
  816                item_kind
  817            )));
  818        };
  819
  820        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  821    }
  822
  823    fn cleanup(
  824        item_kind: &str,
  825        workspace_id: WorkspaceId,
  826        loaded_items: Vec<ItemId>,
  827        window: &mut Window,
  828        cx: &mut App,
  829    ) -> Task<Result<()>> {
  830        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  831            return Task::ready(Err(anyhow!(
  832                "cannot cleanup {}, descriptor not found",
  833                item_kind
  834            )));
  835        };
  836
  837        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  838    }
  839
  840    fn view_to_serializable_item_handle(
  841        view: AnyView,
  842        cx: &App,
  843    ) -> Option<Box<dyn SerializableItemHandle>> {
  844        let this = cx.try_global::<Self>()?;
  845        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  846        Some((descriptor.view_to_serializable_item)(view))
  847    }
  848
  849    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  850        let this = cx.try_global::<Self>()?;
  851        this.descriptors_by_kind.get(item_kind).copied()
  852    }
  853}
  854
  855pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  856    let serialized_item_kind = I::serialized_item_kind();
  857
  858    let registry = cx.default_global::<SerializableItemRegistry>();
  859    let descriptor = SerializableItemDescriptor {
  860        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  861            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  862            cx.foreground_executor()
  863                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  864        },
  865        cleanup: |workspace_id, loaded_items, window, cx| {
  866            I::cleanup(workspace_id, loaded_items, window, cx)
  867        },
  868        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  869    };
  870    registry
  871        .descriptors_by_kind
  872        .insert(Arc::from(serialized_item_kind), descriptor);
  873    registry
  874        .descriptors_by_type
  875        .insert(TypeId::of::<I>(), descriptor);
  876}
  877
  878pub struct AppState {
  879    pub languages: Arc<LanguageRegistry>,
  880    pub client: Arc<Client>,
  881    pub user_store: Entity<UserStore>,
  882    pub workspace_store: Entity<WorkspaceStore>,
  883    pub fs: Arc<dyn fs::Fs>,
  884    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  885    pub node_runtime: NodeRuntime,
  886    pub session: Entity<AppSession>,
  887}
  888
  889struct GlobalAppState(Weak<AppState>);
  890
  891impl Global for GlobalAppState {}
  892
  893pub struct WorkspaceStore {
  894    workspaces: HashSet<WindowHandle<Workspace>>,
  895    client: Arc<Client>,
  896    _subscriptions: Vec<client::Subscription>,
  897}
  898
  899#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  900pub enum CollaboratorId {
  901    PeerId(PeerId),
  902    Agent,
  903}
  904
  905impl From<PeerId> for CollaboratorId {
  906    fn from(peer_id: PeerId) -> Self {
  907        CollaboratorId::PeerId(peer_id)
  908    }
  909}
  910
  911impl From<&PeerId> for CollaboratorId {
  912    fn from(peer_id: &PeerId) -> Self {
  913        CollaboratorId::PeerId(*peer_id)
  914    }
  915}
  916
  917#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  918struct Follower {
  919    project_id: Option<u64>,
  920    peer_id: PeerId,
  921}
  922
  923impl AppState {
  924    #[track_caller]
  925    pub fn global(cx: &App) -> Weak<Self> {
  926        cx.global::<GlobalAppState>().0.clone()
  927    }
  928    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  929        cx.try_global::<GlobalAppState>()
  930            .map(|state| state.0.clone())
  931    }
  932    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  933        cx.set_global(GlobalAppState(state));
  934    }
  935
  936    #[cfg(any(test, feature = "test-support"))]
  937    pub fn test(cx: &mut App) -> Arc<Self> {
  938        use node_runtime::NodeRuntime;
  939        use session::Session;
  940        use settings::SettingsStore;
  941
  942        if !cx.has_global::<SettingsStore>() {
  943            let settings_store = SettingsStore::test(cx);
  944            cx.set_global(settings_store);
  945        }
  946
  947        let fs = fs::FakeFs::new(cx.background_executor().clone());
  948        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
  949        let clock = Arc::new(clock::FakeSystemClock::new());
  950        let http_client = http_client::FakeHttpClient::with_404_response();
  951        let client = Client::new(clock, http_client, cx);
  952        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
  953        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
  954        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
  955
  956        theme::init(theme::LoadThemes::JustBase, cx);
  957        client::init(&client, cx);
  958        crate::init_settings(cx);
  959
  960        Arc::new(Self {
  961            client,
  962            fs,
  963            languages,
  964            user_store,
  965            workspace_store,
  966            node_runtime: NodeRuntime::unavailable(),
  967            build_window_options: |_, _| Default::default(),
  968            session,
  969        })
  970    }
  971}
  972
  973struct DelayedDebouncedEditAction {
  974    task: Option<Task<()>>,
  975    cancel_channel: Option<oneshot::Sender<()>>,
  976}
  977
  978impl DelayedDebouncedEditAction {
  979    fn new() -> DelayedDebouncedEditAction {
  980        DelayedDebouncedEditAction {
  981            task: None,
  982            cancel_channel: None,
  983        }
  984    }
  985
  986    fn fire_new<F>(
  987        &mut self,
  988        delay: Duration,
  989        window: &mut Window,
  990        cx: &mut Context<Workspace>,
  991        func: F,
  992    ) where
  993        F: 'static
  994            + Send
  995            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
  996    {
  997        if let Some(channel) = self.cancel_channel.take() {
  998            _ = channel.send(());
  999        }
 1000
 1001        let (sender, mut receiver) = oneshot::channel::<()>();
 1002        self.cancel_channel = Some(sender);
 1003
 1004        let previous_task = self.task.take();
 1005        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1006            let mut timer = cx.background_executor().timer(delay).fuse();
 1007            if let Some(previous_task) = previous_task {
 1008                previous_task.await;
 1009            }
 1010
 1011            futures::select_biased! {
 1012                _ = receiver => return,
 1013                    _ = timer => {}
 1014            }
 1015
 1016            if let Some(result) = workspace
 1017                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1018                .log_err()
 1019            {
 1020                result.await.log_err();
 1021            }
 1022        }));
 1023    }
 1024}
 1025
 1026pub enum Event {
 1027    PaneAdded(Entity<Pane>),
 1028    PaneRemoved,
 1029    ItemAdded {
 1030        item: Box<dyn ItemHandle>,
 1031    },
 1032    ActiveItemChanged,
 1033    ItemRemoved {
 1034        item_id: EntityId,
 1035    },
 1036    UserSavedItem {
 1037        pane: WeakEntity<Pane>,
 1038        item: Box<dyn WeakItemHandle>,
 1039        save_intent: SaveIntent,
 1040    },
 1041    ContactRequestedJoin(u64),
 1042    WorkspaceCreated(WeakEntity<Workspace>),
 1043    OpenBundledFile {
 1044        text: Cow<'static, str>,
 1045        title: &'static str,
 1046        language: &'static str,
 1047    },
 1048    ZoomChanged,
 1049    ModalOpened,
 1050}
 1051
 1052#[derive(Debug)]
 1053pub enum OpenVisible {
 1054    All,
 1055    None,
 1056    OnlyFiles,
 1057    OnlyDirectories,
 1058}
 1059
 1060enum WorkspaceLocation {
 1061    // Valid local paths or SSH project to serialize
 1062    Location(SerializedWorkspaceLocation, PathList),
 1063    // No valid location found hence clear session id
 1064    DetachFromSession,
 1065    // No valid location found to serialize
 1066    None,
 1067}
 1068
 1069type PromptForNewPath = Box<
 1070    dyn Fn(
 1071        &mut Workspace,
 1072        DirectoryLister,
 1073        &mut Window,
 1074        &mut Context<Workspace>,
 1075    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1076>;
 1077
 1078type PromptForOpenPath = Box<
 1079    dyn Fn(
 1080        &mut Workspace,
 1081        DirectoryLister,
 1082        &mut Window,
 1083        &mut Context<Workspace>,
 1084    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1085>;
 1086
 1087#[derive(Default)]
 1088struct DispatchingKeystrokes {
 1089    dispatched: HashSet<Vec<Keystroke>>,
 1090    queue: VecDeque<Keystroke>,
 1091    task: Option<Shared<Task<()>>>,
 1092}
 1093
 1094/// Collects everything project-related for a certain window opened.
 1095/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1096///
 1097/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1098/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1099/// that can be used to register a global action to be triggered from any place in the window.
 1100pub struct Workspace {
 1101    weak_self: WeakEntity<Self>,
 1102    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1103    zoomed: Option<AnyWeakView>,
 1104    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1105    zoomed_position: Option<DockPosition>,
 1106    center: PaneGroup,
 1107    left_dock: Entity<Dock>,
 1108    bottom_dock: Entity<Dock>,
 1109    right_dock: Entity<Dock>,
 1110    panes: Vec<Entity<Pane>>,
 1111    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1112    active_pane: Entity<Pane>,
 1113    last_active_center_pane: Option<WeakEntity<Pane>>,
 1114    last_active_view_id: Option<proto::ViewId>,
 1115    status_bar: Entity<StatusBar>,
 1116    modal_layer: Entity<ModalLayer>,
 1117    toast_layer: Entity<ToastLayer>,
 1118    titlebar_item: Option<AnyView>,
 1119    notifications: Notifications,
 1120    suppressed_notifications: HashSet<NotificationId>,
 1121    project: Entity<Project>,
 1122    follower_states: HashMap<CollaboratorId, FollowerState>,
 1123    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1124    window_edited: bool,
 1125    last_window_title: Option<String>,
 1126    dirty_items: HashMap<EntityId, Subscription>,
 1127    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1128    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1129    database_id: Option<WorkspaceId>,
 1130    app_state: Arc<AppState>,
 1131    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1132    _subscriptions: Vec<Subscription>,
 1133    _apply_leader_updates: Task<Result<()>>,
 1134    _observe_current_user: Task<Result<()>>,
 1135    _schedule_serialize_workspace: Option<Task<()>>,
 1136    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1137    pane_history_timestamp: Arc<AtomicUsize>,
 1138    bounds: Bounds<Pixels>,
 1139    pub centered_layout: bool,
 1140    bounds_save_task_queued: Option<Task<()>>,
 1141    on_prompt_for_new_path: Option<PromptForNewPath>,
 1142    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1143    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1144    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1145    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1146    _items_serializer: Task<Result<()>>,
 1147    session_id: Option<String>,
 1148    scheduled_tasks: Vec<Task<()>>,
 1149}
 1150
 1151impl EventEmitter<Event> for Workspace {}
 1152
 1153#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1154pub struct ViewId {
 1155    pub creator: CollaboratorId,
 1156    pub id: u64,
 1157}
 1158
 1159pub struct FollowerState {
 1160    center_pane: Entity<Pane>,
 1161    dock_pane: Option<Entity<Pane>>,
 1162    active_view_id: Option<ViewId>,
 1163    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1164}
 1165
 1166struct FollowerView {
 1167    view: Box<dyn FollowableItemHandle>,
 1168    location: Option<proto::PanelId>,
 1169}
 1170
 1171impl Workspace {
 1172    const DEFAULT_PADDING: f32 = 0.2;
 1173    const MAX_PADDING: f32 = 0.4;
 1174
 1175    pub fn new(
 1176        workspace_id: Option<WorkspaceId>,
 1177        project: Entity<Project>,
 1178        app_state: Arc<AppState>,
 1179        window: &mut Window,
 1180        cx: &mut Context<Self>,
 1181    ) -> Self {
 1182        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1183            match event {
 1184                project::Event::RemoteIdChanged(_) => {
 1185                    this.update_window_title(window, cx);
 1186                }
 1187
 1188                project::Event::CollaboratorLeft(peer_id) => {
 1189                    this.collaborator_left(*peer_id, window, cx);
 1190                }
 1191
 1192                project::Event::WorktreeRemoved(_) | project::Event::WorktreeAdded(_) => {
 1193                    this.update_window_title(window, cx);
 1194                    this.serialize_workspace(window, cx);
 1195                    // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 1196                    this.update_history(cx);
 1197                }
 1198
 1199                project::Event::DisconnectedFromHost => {
 1200                    this.update_window_edited(window, cx);
 1201                    let leaders_to_unfollow =
 1202                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1203                    for leader_id in leaders_to_unfollow {
 1204                        this.unfollow(leader_id, window, cx);
 1205                    }
 1206                }
 1207
 1208                project::Event::DisconnectedFromSshRemote => {
 1209                    this.update_window_edited(window, cx);
 1210                }
 1211
 1212                project::Event::Closed => {
 1213                    window.remove_window();
 1214                }
 1215
 1216                project::Event::DeletedEntry(_, entry_id) => {
 1217                    for pane in this.panes.iter() {
 1218                        pane.update(cx, |pane, cx| {
 1219                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1220                        });
 1221                    }
 1222                }
 1223
 1224                project::Event::Toast {
 1225                    notification_id,
 1226                    message,
 1227                } => this.show_notification(
 1228                    NotificationId::named(notification_id.clone()),
 1229                    cx,
 1230                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1231                ),
 1232
 1233                project::Event::HideToast { notification_id } => {
 1234                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1235                }
 1236
 1237                project::Event::LanguageServerPrompt(request) => {
 1238                    struct LanguageServerPrompt;
 1239
 1240                    let mut hasher = DefaultHasher::new();
 1241                    request.lsp_name.as_str().hash(&mut hasher);
 1242                    let id = hasher.finish();
 1243
 1244                    this.show_notification(
 1245                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1246                        cx,
 1247                        |cx| {
 1248                            cx.new(|cx| {
 1249                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1250                            })
 1251                        },
 1252                    );
 1253                }
 1254
 1255                project::Event::AgentLocationChanged => {
 1256                    this.handle_agent_location_changed(window, cx)
 1257                }
 1258
 1259                _ => {}
 1260            }
 1261            cx.notify()
 1262        })
 1263        .detach();
 1264
 1265        cx.subscribe_in(
 1266            &project.read(cx).breakpoint_store(),
 1267            window,
 1268            |workspace, _, event, window, cx| match event {
 1269                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1270                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1271                    workspace.serialize_workspace(window, cx);
 1272                }
 1273                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1274            },
 1275        )
 1276        .detach();
 1277        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1278            cx.subscribe_in(
 1279                &toolchain_store,
 1280                window,
 1281                |workspace, _, event, window, cx| match event {
 1282                    ToolchainStoreEvent::CustomToolchainsModified => {
 1283                        workspace.serialize_workspace(window, cx);
 1284                    }
 1285                    _ => {}
 1286                },
 1287            )
 1288            .detach();
 1289        }
 1290
 1291        cx.on_focus_lost(window, |this, window, cx| {
 1292            let focus_handle = this.focus_handle(cx);
 1293            window.focus(&focus_handle);
 1294        })
 1295        .detach();
 1296
 1297        let weak_handle = cx.entity().downgrade();
 1298        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1299
 1300        let center_pane = cx.new(|cx| {
 1301            let mut center_pane = Pane::new(
 1302                weak_handle.clone(),
 1303                project.clone(),
 1304                pane_history_timestamp.clone(),
 1305                None,
 1306                NewFile.boxed_clone(),
 1307                window,
 1308                cx,
 1309            );
 1310            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1311            center_pane
 1312        });
 1313        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1314            .detach();
 1315
 1316        window.focus(&center_pane.focus_handle(cx));
 1317
 1318        cx.emit(Event::PaneAdded(center_pane.clone()));
 1319
 1320        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1321        app_state.workspace_store.update(cx, |store, _| {
 1322            store.workspaces.insert(window_handle);
 1323        });
 1324
 1325        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1326        let mut connection_status = app_state.client.status();
 1327        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1328            current_user.next().await;
 1329            connection_status.next().await;
 1330            let mut stream =
 1331                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1332
 1333            while stream.recv().await.is_some() {
 1334                this.update(cx, |_, cx| cx.notify())?;
 1335            }
 1336            anyhow::Ok(())
 1337        });
 1338
 1339        // All leader updates are enqueued and then processed in a single task, so
 1340        // that each asynchronous operation can be run in order.
 1341        let (leader_updates_tx, mut leader_updates_rx) =
 1342            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1343        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1344            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1345                Self::process_leader_update(&this, leader_id, update, cx)
 1346                    .await
 1347                    .log_err();
 1348            }
 1349
 1350            Ok(())
 1351        });
 1352
 1353        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1354        let modal_layer = cx.new(|_| ModalLayer::new());
 1355        let toast_layer = cx.new(|_| ToastLayer::new());
 1356        cx.subscribe(
 1357            &modal_layer,
 1358            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1359                cx.emit(Event::ModalOpened);
 1360            },
 1361        )
 1362        .detach();
 1363
 1364        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1365        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1366        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1367        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1368        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1369        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1370        let status_bar = cx.new(|cx| {
 1371            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1372            status_bar.add_left_item(left_dock_buttons, window, cx);
 1373            status_bar.add_right_item(right_dock_buttons, window, cx);
 1374            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1375            status_bar
 1376        });
 1377
 1378        let session_id = app_state.session.read(cx).id().to_owned();
 1379
 1380        let mut active_call = None;
 1381        if let Some(call) = ActiveCall::try_global(cx) {
 1382            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1383            active_call = Some((call, subscriptions));
 1384        }
 1385
 1386        let (serializable_items_tx, serializable_items_rx) =
 1387            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1388        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1389            Self::serialize_items(&this, serializable_items_rx, cx).await
 1390        });
 1391
 1392        let subscriptions = vec![
 1393            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1394            cx.observe_window_bounds(window, move |this, window, cx| {
 1395                if this.bounds_save_task_queued.is_some() {
 1396                    return;
 1397                }
 1398                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1399                    cx.background_executor()
 1400                        .timer(Duration::from_millis(100))
 1401                        .await;
 1402                    this.update_in(cx, |this, window, cx| {
 1403                        if let Some(display) = window.display(cx)
 1404                            && let Ok(display_uuid) = display.uuid()
 1405                        {
 1406                            let window_bounds = window.inner_window_bounds();
 1407                            if let Some(database_id) = workspace_id {
 1408                                cx.background_executor()
 1409                                    .spawn(DB.set_window_open_status(
 1410                                        database_id,
 1411                                        SerializedWindowBounds(window_bounds),
 1412                                        display_uuid,
 1413                                    ))
 1414                                    .detach_and_log_err(cx);
 1415                            }
 1416                        }
 1417                        this.bounds_save_task_queued.take();
 1418                    })
 1419                    .ok();
 1420                }));
 1421                cx.notify();
 1422            }),
 1423            cx.observe_window_appearance(window, |_, window, cx| {
 1424                let window_appearance = window.appearance();
 1425
 1426                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1427
 1428                ThemeSettings::reload_current_theme(cx);
 1429                ThemeSettings::reload_current_icon_theme(cx);
 1430            }),
 1431            cx.on_release(move |this, cx| {
 1432                this.app_state.workspace_store.update(cx, move |store, _| {
 1433                    store.workspaces.remove(&window_handle.clone());
 1434                })
 1435            }),
 1436        ];
 1437
 1438        cx.defer_in(window, |this, window, cx| {
 1439            this.update_window_title(window, cx);
 1440            this.show_initial_notifications(cx);
 1441        });
 1442        Workspace {
 1443            weak_self: weak_handle.clone(),
 1444            zoomed: None,
 1445            zoomed_position: None,
 1446            previous_dock_drag_coordinates: None,
 1447            center: PaneGroup::new(center_pane.clone()),
 1448            panes: vec![center_pane.clone()],
 1449            panes_by_item: Default::default(),
 1450            active_pane: center_pane.clone(),
 1451            last_active_center_pane: Some(center_pane.downgrade()),
 1452            last_active_view_id: None,
 1453            status_bar,
 1454            modal_layer,
 1455            toast_layer,
 1456            titlebar_item: None,
 1457            notifications: Notifications::default(),
 1458            suppressed_notifications: HashSet::default(),
 1459            left_dock,
 1460            bottom_dock,
 1461            right_dock,
 1462            project: project.clone(),
 1463            follower_states: Default::default(),
 1464            last_leaders_by_pane: Default::default(),
 1465            dispatching_keystrokes: Default::default(),
 1466            window_edited: false,
 1467            last_window_title: None,
 1468            dirty_items: Default::default(),
 1469            active_call,
 1470            database_id: workspace_id,
 1471            app_state,
 1472            _observe_current_user,
 1473            _apply_leader_updates,
 1474            _schedule_serialize_workspace: None,
 1475            _schedule_serialize_ssh_paths: None,
 1476            leader_updates_tx,
 1477            _subscriptions: subscriptions,
 1478            pane_history_timestamp,
 1479            workspace_actions: Default::default(),
 1480            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1481            bounds: Default::default(),
 1482            centered_layout: false,
 1483            bounds_save_task_queued: None,
 1484            on_prompt_for_new_path: None,
 1485            on_prompt_for_open_path: None,
 1486            terminal_provider: None,
 1487            debugger_provider: None,
 1488            serializable_items_tx,
 1489            _items_serializer,
 1490            session_id: Some(session_id),
 1491
 1492            scheduled_tasks: Vec::new(),
 1493        }
 1494    }
 1495
 1496    pub fn new_local(
 1497        abs_paths: Vec<PathBuf>,
 1498        app_state: Arc<AppState>,
 1499        requesting_window: Option<WindowHandle<Workspace>>,
 1500        env: Option<HashMap<String, String>>,
 1501        cx: &mut App,
 1502    ) -> Task<
 1503        anyhow::Result<(
 1504            WindowHandle<Workspace>,
 1505            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1506        )>,
 1507    > {
 1508        let project_handle = Project::local(
 1509            app_state.client.clone(),
 1510            app_state.node_runtime.clone(),
 1511            app_state.user_store.clone(),
 1512            app_state.languages.clone(),
 1513            app_state.fs.clone(),
 1514            env,
 1515            cx,
 1516        );
 1517
 1518        cx.spawn(async move |cx| {
 1519            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1520            for path in abs_paths.into_iter() {
 1521                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1522                    paths_to_open.push(canonical)
 1523                } else {
 1524                    paths_to_open.push(path)
 1525                }
 1526            }
 1527
 1528            let serialized_workspace =
 1529                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1530
 1531            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1532                paths_to_open = paths.paths().to_vec();
 1533                if !paths.is_lexicographically_ordered() {
 1534                    project_handle
 1535                        .update(cx, |project, cx| {
 1536                            project.set_worktrees_reordered(true, cx);
 1537                        })
 1538                        .log_err();
 1539                }
 1540            }
 1541
 1542            // Get project paths for all of the abs_paths
 1543            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1544                Vec::with_capacity(paths_to_open.len());
 1545
 1546            for path in paths_to_open.into_iter() {
 1547                if let Some((_, project_entry)) = cx
 1548                    .update(|cx| {
 1549                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1550                    })?
 1551                    .await
 1552                    .log_err()
 1553                {
 1554                    project_paths.push((path, Some(project_entry)));
 1555                } else {
 1556                    project_paths.push((path, None));
 1557                }
 1558            }
 1559
 1560            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1561                serialized_workspace.id
 1562            } else {
 1563                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1564            };
 1565
 1566            let toolchains = DB.toolchains(workspace_id).await?;
 1567
 1568            for (toolchain, worktree_id, path) in toolchains {
 1569                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1570                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1571                    continue;
 1572                }
 1573
 1574                project_handle
 1575                    .update(cx, |this, cx| {
 1576                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1577                    })?
 1578                    .await;
 1579            }
 1580            if let Some(workspace) = serialized_workspace.as_ref() {
 1581                project_handle.update(cx, |this, cx| {
 1582                    for (scope, toolchains) in &workspace.user_toolchains {
 1583                        for toolchain in toolchains {
 1584                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1585                        }
 1586                    }
 1587                })?;
 1588            }
 1589
 1590            let window = if let Some(window) = requesting_window {
 1591                let centered_layout = serialized_workspace
 1592                    .as_ref()
 1593                    .map(|w| w.centered_layout)
 1594                    .unwrap_or(false);
 1595
 1596                cx.update_window(window.into(), |_, window, cx| {
 1597                    window.replace_root(cx, |window, cx| {
 1598                        let mut workspace = Workspace::new(
 1599                            Some(workspace_id),
 1600                            project_handle.clone(),
 1601                            app_state.clone(),
 1602                            window,
 1603                            cx,
 1604                        );
 1605
 1606                        workspace.centered_layout = centered_layout;
 1607                        workspace
 1608                    });
 1609                })?;
 1610                window
 1611            } else {
 1612                let window_bounds_override = window_bounds_env_override();
 1613
 1614                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1615                    (Some(WindowBounds::Windowed(bounds)), None)
 1616                } else {
 1617                    let restorable_bounds = serialized_workspace
 1618                        .as_ref()
 1619                        .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 1620                        .or_else(|| {
 1621                            let (display, window_bounds) = DB.last_window().log_err()?;
 1622                            Some((display?, window_bounds?))
 1623                        });
 1624
 1625                    if let Some((serialized_display, serialized_status)) = restorable_bounds {
 1626                        (Some(serialized_status.0), Some(serialized_display))
 1627                    } else {
 1628                        (None, None)
 1629                    }
 1630                };
 1631
 1632                // Use the serialized workspace to construct the new window
 1633                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1634                options.window_bounds = window_bounds;
 1635                let centered_layout = serialized_workspace
 1636                    .as_ref()
 1637                    .map(|w| w.centered_layout)
 1638                    .unwrap_or(false);
 1639                cx.open_window(options, {
 1640                    let app_state = app_state.clone();
 1641                    let project_handle = project_handle.clone();
 1642                    move |window, cx| {
 1643                        cx.new(|cx| {
 1644                            let mut workspace = Workspace::new(
 1645                                Some(workspace_id),
 1646                                project_handle,
 1647                                app_state,
 1648                                window,
 1649                                cx,
 1650                            );
 1651                            workspace.centered_layout = centered_layout;
 1652                            workspace
 1653                        })
 1654                    }
 1655                })?
 1656            };
 1657
 1658            notify_if_database_failed(window, cx);
 1659            let opened_items = window
 1660                .update(cx, |_workspace, window, cx| {
 1661                    open_items(serialized_workspace, project_paths, window, cx)
 1662                })?
 1663                .await
 1664                .unwrap_or_default();
 1665
 1666            window
 1667                .update(cx, |workspace, window, cx| {
 1668                    window.activate_window();
 1669                    workspace.update_history(cx);
 1670                })
 1671                .log_err();
 1672            Ok((window, opened_items))
 1673        })
 1674    }
 1675
 1676    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1677        self.weak_self.clone()
 1678    }
 1679
 1680    pub fn left_dock(&self) -> &Entity<Dock> {
 1681        &self.left_dock
 1682    }
 1683
 1684    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1685        &self.bottom_dock
 1686    }
 1687
 1688    pub fn set_bottom_dock_layout(
 1689        &mut self,
 1690        layout: BottomDockLayout,
 1691        window: &mut Window,
 1692        cx: &mut Context<Self>,
 1693    ) {
 1694        let fs = self.project().read(cx).fs();
 1695        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1696            content.workspace.bottom_dock_layout = Some(layout);
 1697        });
 1698
 1699        cx.notify();
 1700        self.serialize_workspace(window, cx);
 1701    }
 1702
 1703    pub fn right_dock(&self) -> &Entity<Dock> {
 1704        &self.right_dock
 1705    }
 1706
 1707    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1708        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1709    }
 1710
 1711    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1712        match position {
 1713            DockPosition::Left => &self.left_dock,
 1714            DockPosition::Bottom => &self.bottom_dock,
 1715            DockPosition::Right => &self.right_dock,
 1716        }
 1717    }
 1718
 1719    pub fn is_edited(&self) -> bool {
 1720        self.window_edited
 1721    }
 1722
 1723    pub fn add_panel<T: Panel>(
 1724        &mut self,
 1725        panel: Entity<T>,
 1726        window: &mut Window,
 1727        cx: &mut Context<Self>,
 1728    ) {
 1729        let focus_handle = panel.panel_focus_handle(cx);
 1730        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1731            .detach();
 1732
 1733        let dock_position = panel.position(window, cx);
 1734        let dock = self.dock_at_position(dock_position);
 1735
 1736        dock.update(cx, |dock, cx| {
 1737            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1738        });
 1739    }
 1740
 1741    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1742        &self.status_bar
 1743    }
 1744
 1745    pub fn app_state(&self) -> &Arc<AppState> {
 1746        &self.app_state
 1747    }
 1748
 1749    pub fn user_store(&self) -> &Entity<UserStore> {
 1750        &self.app_state.user_store
 1751    }
 1752
 1753    pub fn project(&self) -> &Entity<Project> {
 1754        &self.project
 1755    }
 1756
 1757    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1758        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1759
 1760        for pane_handle in &self.panes {
 1761            let pane = pane_handle.read(cx);
 1762
 1763            for entry in pane.activation_history() {
 1764                history.insert(
 1765                    entry.entity_id,
 1766                    history
 1767                        .get(&entry.entity_id)
 1768                        .cloned()
 1769                        .unwrap_or(0)
 1770                        .max(entry.timestamp),
 1771                );
 1772            }
 1773        }
 1774
 1775        history
 1776    }
 1777
 1778    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1779        let mut recent_item: Option<Entity<T>> = None;
 1780        let mut recent_timestamp = 0;
 1781        for pane_handle in &self.panes {
 1782            let pane = pane_handle.read(cx);
 1783            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1784                pane.items().map(|item| (item.item_id(), item)).collect();
 1785            for entry in pane.activation_history() {
 1786                if entry.timestamp > recent_timestamp
 1787                    && let Some(&item) = item_map.get(&entry.entity_id)
 1788                    && let Some(typed_item) = item.act_as::<T>(cx)
 1789                {
 1790                    recent_timestamp = entry.timestamp;
 1791                    recent_item = Some(typed_item);
 1792                }
 1793            }
 1794        }
 1795        recent_item
 1796    }
 1797
 1798    pub fn recent_navigation_history_iter(
 1799        &self,
 1800        cx: &App,
 1801    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> {
 1802        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1803        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1804
 1805        for pane in &self.panes {
 1806            let pane = pane.read(cx);
 1807
 1808            pane.nav_history()
 1809                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1810                    if let Some(fs_path) = &fs_path {
 1811                        abs_paths_opened
 1812                            .entry(fs_path.clone())
 1813                            .or_default()
 1814                            .insert(project_path.clone());
 1815                    }
 1816                    let timestamp = entry.timestamp;
 1817                    match history.entry(project_path) {
 1818                        hash_map::Entry::Occupied(mut entry) => {
 1819                            let (_, old_timestamp) = entry.get();
 1820                            if &timestamp > old_timestamp {
 1821                                entry.insert((fs_path, timestamp));
 1822                            }
 1823                        }
 1824                        hash_map::Entry::Vacant(entry) => {
 1825                            entry.insert((fs_path, timestamp));
 1826                        }
 1827                    }
 1828                });
 1829
 1830            if let Some(item) = pane.active_item()
 1831                && let Some(project_path) = item.project_path(cx)
 1832            {
 1833                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 1834
 1835                if let Some(fs_path) = &fs_path {
 1836                    abs_paths_opened
 1837                        .entry(fs_path.clone())
 1838                        .or_default()
 1839                        .insert(project_path.clone());
 1840                }
 1841
 1842                history.insert(project_path, (fs_path, std::usize::MAX));
 1843            }
 1844        }
 1845
 1846        history
 1847            .into_iter()
 1848            .sorted_by_key(|(_, (_, order))| *order)
 1849            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 1850            .rev()
 1851            .filter(move |(history_path, abs_path)| {
 1852                let latest_project_path_opened = abs_path
 1853                    .as_ref()
 1854                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 1855                    .and_then(|project_paths| {
 1856                        project_paths
 1857                            .iter()
 1858                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 1859                    });
 1860
 1861                latest_project_path_opened.is_none_or(|path| path == history_path)
 1862            })
 1863    }
 1864
 1865    pub fn recent_navigation_history(
 1866        &self,
 1867        limit: Option<usize>,
 1868        cx: &App,
 1869    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 1870        self.recent_navigation_history_iter(cx)
 1871            .take(limit.unwrap_or(usize::MAX))
 1872            .collect()
 1873    }
 1874
 1875    fn navigate_history(
 1876        &mut self,
 1877        pane: WeakEntity<Pane>,
 1878        mode: NavigationMode,
 1879        window: &mut Window,
 1880        cx: &mut Context<Workspace>,
 1881    ) -> Task<Result<()>> {
 1882        let to_load = if let Some(pane) = pane.upgrade() {
 1883            pane.update(cx, |pane, cx| {
 1884                window.focus(&pane.focus_handle(cx));
 1885                loop {
 1886                    // Retrieve the weak item handle from the history.
 1887                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 1888
 1889                    // If the item is still present in this pane, then activate it.
 1890                    if let Some(index) = entry
 1891                        .item
 1892                        .upgrade()
 1893                        .and_then(|v| pane.index_for_item(v.as_ref()))
 1894                    {
 1895                        let prev_active_item_index = pane.active_item_index();
 1896                        pane.nav_history_mut().set_mode(mode);
 1897                        pane.activate_item(index, true, true, window, cx);
 1898                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1899
 1900                        let mut navigated = prev_active_item_index != pane.active_item_index();
 1901                        if let Some(data) = entry.data {
 1902                            navigated |= pane.active_item()?.navigate(data, window, cx);
 1903                        }
 1904
 1905                        if navigated {
 1906                            break None;
 1907                        }
 1908                    } else {
 1909                        // If the item is no longer present in this pane, then retrieve its
 1910                        // path info in order to reopen it.
 1911                        break pane
 1912                            .nav_history()
 1913                            .path_for_item(entry.item.id())
 1914                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 1915                    }
 1916                }
 1917            })
 1918        } else {
 1919            None
 1920        };
 1921
 1922        if let Some((project_path, abs_path, entry)) = to_load {
 1923            // If the item was no longer present, then load it again from its previous path, first try the local path
 1924            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 1925
 1926            cx.spawn_in(window, async move  |workspace, cx| {
 1927                let open_by_project_path = open_by_project_path.await;
 1928                let mut navigated = false;
 1929                match open_by_project_path
 1930                    .with_context(|| format!("Navigating to {project_path:?}"))
 1931                {
 1932                    Ok((project_entry_id, build_item)) => {
 1933                        let prev_active_item_id = pane.update(cx, |pane, _| {
 1934                            pane.nav_history_mut().set_mode(mode);
 1935                            pane.active_item().map(|p| p.item_id())
 1936                        })?;
 1937
 1938                        pane.update_in(cx, |pane, window, cx| {
 1939                            let item = pane.open_item(
 1940                                project_entry_id,
 1941                                project_path,
 1942                                true,
 1943                                entry.is_preview,
 1944                                true,
 1945                                None,
 1946                                window, cx,
 1947                                build_item,
 1948                            );
 1949                            navigated |= Some(item.item_id()) != prev_active_item_id;
 1950                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1951                            if let Some(data) = entry.data {
 1952                                navigated |= item.navigate(data, window, cx);
 1953                            }
 1954                        })?;
 1955                    }
 1956                    Err(open_by_project_path_e) => {
 1957                        // Fall back to opening by abs path, in case an external file was opened and closed,
 1958                        // and its worktree is now dropped
 1959                        if let Some(abs_path) = abs_path {
 1960                            let prev_active_item_id = pane.update(cx, |pane, _| {
 1961                                pane.nav_history_mut().set_mode(mode);
 1962                                pane.active_item().map(|p| p.item_id())
 1963                            })?;
 1964                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 1965                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 1966                            })?;
 1967                            match open_by_abs_path
 1968                                .await
 1969                                .with_context(|| format!("Navigating to {abs_path:?}"))
 1970                            {
 1971                                Ok(item) => {
 1972                                    pane.update_in(cx, |pane, window, cx| {
 1973                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 1974                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1975                                        if let Some(data) = entry.data {
 1976                                            navigated |= item.navigate(data, window, cx);
 1977                                        }
 1978                                    })?;
 1979                                }
 1980                                Err(open_by_abs_path_e) => {
 1981                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 1982                                }
 1983                            }
 1984                        }
 1985                    }
 1986                }
 1987
 1988                if !navigated {
 1989                    workspace
 1990                        .update_in(cx, |workspace, window, cx| {
 1991                            Self::navigate_history(workspace, pane, mode, window, cx)
 1992                        })?
 1993                        .await?;
 1994                }
 1995
 1996                Ok(())
 1997            })
 1998        } else {
 1999            Task::ready(Ok(()))
 2000        }
 2001    }
 2002
 2003    pub fn go_back(
 2004        &mut self,
 2005        pane: WeakEntity<Pane>,
 2006        window: &mut Window,
 2007        cx: &mut Context<Workspace>,
 2008    ) -> Task<Result<()>> {
 2009        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2010    }
 2011
 2012    pub fn go_forward(
 2013        &mut self,
 2014        pane: WeakEntity<Pane>,
 2015        window: &mut Window,
 2016        cx: &mut Context<Workspace>,
 2017    ) -> Task<Result<()>> {
 2018        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2019    }
 2020
 2021    pub fn reopen_closed_item(
 2022        &mut self,
 2023        window: &mut Window,
 2024        cx: &mut Context<Workspace>,
 2025    ) -> Task<Result<()>> {
 2026        self.navigate_history(
 2027            self.active_pane().downgrade(),
 2028            NavigationMode::ReopeningClosedItem,
 2029            window,
 2030            cx,
 2031        )
 2032    }
 2033
 2034    pub fn client(&self) -> &Arc<Client> {
 2035        &self.app_state.client
 2036    }
 2037
 2038    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2039        self.titlebar_item = Some(item);
 2040        cx.notify();
 2041    }
 2042
 2043    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2044        self.on_prompt_for_new_path = Some(prompt)
 2045    }
 2046
 2047    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2048        self.on_prompt_for_open_path = Some(prompt)
 2049    }
 2050
 2051    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2052        self.terminal_provider = Some(Box::new(provider));
 2053    }
 2054
 2055    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2056        self.debugger_provider = Some(Arc::new(provider));
 2057    }
 2058
 2059    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2060        self.debugger_provider.clone()
 2061    }
 2062
 2063    pub fn prompt_for_open_path(
 2064        &mut self,
 2065        path_prompt_options: PathPromptOptions,
 2066        lister: DirectoryLister,
 2067        window: &mut Window,
 2068        cx: &mut Context<Self>,
 2069    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2070        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2071            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2072            let rx = prompt(self, lister, window, cx);
 2073            self.on_prompt_for_open_path = Some(prompt);
 2074            rx
 2075        } else {
 2076            let (tx, rx) = oneshot::channel();
 2077            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2078
 2079            cx.spawn_in(window, async move |workspace, cx| {
 2080                let Ok(result) = abs_path.await else {
 2081                    return Ok(());
 2082                };
 2083
 2084                match result {
 2085                    Ok(result) => {
 2086                        tx.send(result).ok();
 2087                    }
 2088                    Err(err) => {
 2089                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2090                            workspace.show_portal_error(err.to_string(), cx);
 2091                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2092                            let rx = prompt(workspace, lister, window, cx);
 2093                            workspace.on_prompt_for_open_path = Some(prompt);
 2094                            rx
 2095                        })?;
 2096                        if let Ok(path) = rx.await {
 2097                            tx.send(path).ok();
 2098                        }
 2099                    }
 2100                };
 2101                anyhow::Ok(())
 2102            })
 2103            .detach();
 2104
 2105            rx
 2106        }
 2107    }
 2108
 2109    pub fn prompt_for_new_path(
 2110        &mut self,
 2111        lister: DirectoryLister,
 2112        suggested_name: Option<String>,
 2113        window: &mut Window,
 2114        cx: &mut Context<Self>,
 2115    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2116        if self.project.read(cx).is_via_collab()
 2117            || self.project.read(cx).is_via_remote_server()
 2118            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2119        {
 2120            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2121            let rx = prompt(self, lister, window, cx);
 2122            self.on_prompt_for_new_path = Some(prompt);
 2123            return rx;
 2124        }
 2125
 2126        let (tx, rx) = oneshot::channel();
 2127        cx.spawn_in(window, async move |workspace, cx| {
 2128            let abs_path = workspace.update(cx, |workspace, cx| {
 2129                let relative_to = workspace
 2130                    .most_recent_active_path(cx)
 2131                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2132                    .or_else(|| {
 2133                        let project = workspace.project.read(cx);
 2134                        project.visible_worktrees(cx).find_map(|worktree| {
 2135                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2136                        })
 2137                    })
 2138                    .or_else(std::env::home_dir)
 2139                    .unwrap_or_else(|| PathBuf::from(""));
 2140                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2141            })?;
 2142            let abs_path = match abs_path.await? {
 2143                Ok(path) => path,
 2144                Err(err) => {
 2145                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2146                        workspace.show_portal_error(err.to_string(), cx);
 2147
 2148                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2149                        let rx = prompt(workspace, lister, window, cx);
 2150                        workspace.on_prompt_for_new_path = Some(prompt);
 2151                        rx
 2152                    })?;
 2153                    if let Ok(path) = rx.await {
 2154                        tx.send(path).ok();
 2155                    }
 2156                    return anyhow::Ok(());
 2157                }
 2158            };
 2159
 2160            tx.send(abs_path.map(|path| vec![path])).ok();
 2161            anyhow::Ok(())
 2162        })
 2163        .detach();
 2164
 2165        rx
 2166    }
 2167
 2168    pub fn titlebar_item(&self) -> Option<AnyView> {
 2169        self.titlebar_item.clone()
 2170    }
 2171
 2172    /// Call the given callback with a workspace whose project is local.
 2173    ///
 2174    /// If the given workspace has a local project, then it will be passed
 2175    /// to the callback. Otherwise, a new empty window will be created.
 2176    pub fn with_local_workspace<T, F>(
 2177        &mut self,
 2178        window: &mut Window,
 2179        cx: &mut Context<Self>,
 2180        callback: F,
 2181    ) -> Task<Result<T>>
 2182    where
 2183        T: 'static,
 2184        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2185    {
 2186        if self.project.read(cx).is_local() {
 2187            Task::ready(Ok(callback(self, window, cx)))
 2188        } else {
 2189            let env = self.project.read(cx).cli_environment(cx);
 2190            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, cx);
 2191            cx.spawn_in(window, async move |_vh, cx| {
 2192                let (workspace, _) = task.await?;
 2193                workspace.update(cx, callback)
 2194            })
 2195        }
 2196    }
 2197
 2198    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2199        self.project.read(cx).worktrees(cx)
 2200    }
 2201
 2202    pub fn visible_worktrees<'a>(
 2203        &self,
 2204        cx: &'a App,
 2205    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2206        self.project.read(cx).visible_worktrees(cx)
 2207    }
 2208
 2209    #[cfg(any(test, feature = "test-support"))]
 2210    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2211        let futures = self
 2212            .worktrees(cx)
 2213            .filter_map(|worktree| worktree.read(cx).as_local())
 2214            .map(|worktree| worktree.scan_complete())
 2215            .collect::<Vec<_>>();
 2216        async move {
 2217            for future in futures {
 2218                future.await;
 2219            }
 2220        }
 2221    }
 2222
 2223    pub fn close_global(cx: &mut App) {
 2224        cx.defer(|cx| {
 2225            cx.windows().iter().find(|window| {
 2226                window
 2227                    .update(cx, |_, window, _| {
 2228                        if window.is_window_active() {
 2229                            //This can only get called when the window's project connection has been lost
 2230                            //so we don't need to prompt the user for anything and instead just close the window
 2231                            window.remove_window();
 2232                            true
 2233                        } else {
 2234                            false
 2235                        }
 2236                    })
 2237                    .unwrap_or(false)
 2238            });
 2239        });
 2240    }
 2241
 2242    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2243        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2244        cx.spawn_in(window, async move |_, cx| {
 2245            if prepare.await? {
 2246                cx.update(|window, _cx| window.remove_window())?;
 2247            }
 2248            anyhow::Ok(())
 2249        })
 2250        .detach_and_log_err(cx)
 2251    }
 2252
 2253    pub fn move_focused_panel_to_next_position(
 2254        &mut self,
 2255        _: &MoveFocusedPanelToNextPosition,
 2256        window: &mut Window,
 2257        cx: &mut Context<Self>,
 2258    ) {
 2259        let docks = self.all_docks();
 2260        let active_dock = docks
 2261            .into_iter()
 2262            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2263
 2264        if let Some(dock) = active_dock {
 2265            dock.update(cx, |dock, cx| {
 2266                let active_panel = dock
 2267                    .active_panel()
 2268                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2269
 2270                if let Some(panel) = active_panel {
 2271                    panel.move_to_next_position(window, cx);
 2272                }
 2273            })
 2274        }
 2275    }
 2276
 2277    pub fn prepare_to_close(
 2278        &mut self,
 2279        close_intent: CloseIntent,
 2280        window: &mut Window,
 2281        cx: &mut Context<Self>,
 2282    ) -> Task<Result<bool>> {
 2283        let active_call = self.active_call().cloned();
 2284
 2285        // On Linux and Windows, closing the last window should restore the last workspace.
 2286        let save_last_workspace = cfg!(not(target_os = "macos"))
 2287            && close_intent != CloseIntent::ReplaceWindow
 2288            && cx.windows().len() == 1;
 2289
 2290        cx.spawn_in(window, async move |this, cx| {
 2291            let workspace_count = cx.update(|_window, cx| {
 2292                cx.windows()
 2293                    .iter()
 2294                    .filter(|window| window.downcast::<Workspace>().is_some())
 2295                    .count()
 2296            })?;
 2297
 2298            if let Some(active_call) = active_call
 2299                && workspace_count == 1
 2300                && active_call.read_with(cx, |call, _| call.room().is_some())?
 2301            {
 2302                if close_intent == CloseIntent::CloseWindow {
 2303                    let answer = cx.update(|window, cx| {
 2304                        window.prompt(
 2305                            PromptLevel::Warning,
 2306                            "Do you want to leave the current call?",
 2307                            None,
 2308                            &["Close window and hang up", "Cancel"],
 2309                            cx,
 2310                        )
 2311                    })?;
 2312
 2313                    if answer.await.log_err() == Some(1) {
 2314                        return anyhow::Ok(false);
 2315                    } else {
 2316                        active_call
 2317                            .update(cx, |call, cx| call.hang_up(cx))?
 2318                            .await
 2319                            .log_err();
 2320                    }
 2321                }
 2322                if close_intent == CloseIntent::ReplaceWindow {
 2323                    _ = active_call.update(cx, |this, cx| {
 2324                        let workspace = cx
 2325                            .windows()
 2326                            .iter()
 2327                            .filter_map(|window| window.downcast::<Workspace>())
 2328                            .next()
 2329                            .unwrap();
 2330                        let project = workspace.read(cx)?.project.clone();
 2331                        if project.read(cx).is_shared() {
 2332                            this.unshare_project(project, cx)?;
 2333                        }
 2334                        Ok::<_, anyhow::Error>(())
 2335                    })?;
 2336                }
 2337            }
 2338
 2339            let save_result = this
 2340                .update_in(cx, |this, window, cx| {
 2341                    this.save_all_internal(SaveIntent::Close, window, cx)
 2342                })?
 2343                .await;
 2344
 2345            // If we're not quitting, but closing, we remove the workspace from
 2346            // the current session.
 2347            if close_intent != CloseIntent::Quit
 2348                && !save_last_workspace
 2349                && save_result.as_ref().is_ok_and(|&res| res)
 2350            {
 2351                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2352                    .await;
 2353            }
 2354
 2355            save_result
 2356        })
 2357    }
 2358
 2359    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2360        self.save_all_internal(
 2361            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2362            window,
 2363            cx,
 2364        )
 2365        .detach_and_log_err(cx);
 2366    }
 2367
 2368    fn send_keystrokes(
 2369        &mut self,
 2370        action: &SendKeystrokes,
 2371        window: &mut Window,
 2372        cx: &mut Context<Self>,
 2373    ) {
 2374        let keystrokes: Vec<Keystroke> = action
 2375            .0
 2376            .split(' ')
 2377            .flat_map(|k| Keystroke::parse(k).log_err())
 2378            .collect();
 2379        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2380    }
 2381
 2382    pub fn send_keystrokes_impl(
 2383        &mut self,
 2384        keystrokes: Vec<Keystroke>,
 2385        window: &mut Window,
 2386        cx: &mut Context<Self>,
 2387    ) -> Shared<Task<()>> {
 2388        let mut state = self.dispatching_keystrokes.borrow_mut();
 2389        if !state.dispatched.insert(keystrokes.clone()) {
 2390            cx.propagate();
 2391            return state.task.clone().unwrap();
 2392        }
 2393
 2394        state.queue.extend(keystrokes);
 2395
 2396        let keystrokes = self.dispatching_keystrokes.clone();
 2397        if state.task.is_none() {
 2398            state.task = Some(
 2399                window
 2400                    .spawn(cx, async move |cx| {
 2401                        // limit to 100 keystrokes to avoid infinite recursion.
 2402                        for _ in 0..100 {
 2403                            let mut state = keystrokes.borrow_mut();
 2404                            let Some(keystroke) = state.queue.pop_front() else {
 2405                                state.dispatched.clear();
 2406                                state.task.take();
 2407                                return;
 2408                            };
 2409                            drop(state);
 2410                            cx.update(|window, cx| {
 2411                                let focused = window.focused(cx);
 2412                                window.dispatch_keystroke(keystroke.clone(), cx);
 2413                                if window.focused(cx) != focused {
 2414                                    // dispatch_keystroke may cause the focus to change.
 2415                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2416                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2417                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2418                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2419                                    // )
 2420                                    window.draw(cx).clear();
 2421                                }
 2422                            })
 2423                            .ok();
 2424                        }
 2425
 2426                        *keystrokes.borrow_mut() = Default::default();
 2427                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2428                    })
 2429                    .shared(),
 2430            );
 2431        }
 2432        state.task.clone().unwrap()
 2433    }
 2434
 2435    fn save_all_internal(
 2436        &mut self,
 2437        mut save_intent: SaveIntent,
 2438        window: &mut Window,
 2439        cx: &mut Context<Self>,
 2440    ) -> Task<Result<bool>> {
 2441        if self.project.read(cx).is_disconnected(cx) {
 2442            return Task::ready(Ok(true));
 2443        }
 2444        let dirty_items = self
 2445            .panes
 2446            .iter()
 2447            .flat_map(|pane| {
 2448                pane.read(cx).items().filter_map(|item| {
 2449                    if item.is_dirty(cx) {
 2450                        item.tab_content_text(0, cx);
 2451                        Some((pane.downgrade(), item.boxed_clone()))
 2452                    } else {
 2453                        None
 2454                    }
 2455                })
 2456            })
 2457            .collect::<Vec<_>>();
 2458
 2459        let project = self.project.clone();
 2460        cx.spawn_in(window, async move |workspace, cx| {
 2461            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2462                let (serialize_tasks, remaining_dirty_items) =
 2463                    workspace.update_in(cx, |workspace, window, cx| {
 2464                        let mut remaining_dirty_items = Vec::new();
 2465                        let mut serialize_tasks = Vec::new();
 2466                        for (pane, item) in dirty_items {
 2467                            if let Some(task) = item
 2468                                .to_serializable_item_handle(cx)
 2469                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2470                            {
 2471                                serialize_tasks.push(task);
 2472                            } else {
 2473                                remaining_dirty_items.push((pane, item));
 2474                            }
 2475                        }
 2476                        (serialize_tasks, remaining_dirty_items)
 2477                    })?;
 2478
 2479                futures::future::try_join_all(serialize_tasks).await?;
 2480
 2481                if remaining_dirty_items.len() > 1 {
 2482                    let answer = workspace.update_in(cx, |_, window, cx| {
 2483                        let detail = Pane::file_names_for_prompt(
 2484                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2485                            cx,
 2486                        );
 2487                        window.prompt(
 2488                            PromptLevel::Warning,
 2489                            "Do you want to save all changes in the following files?",
 2490                            Some(&detail),
 2491                            &["Save all", "Discard all", "Cancel"],
 2492                            cx,
 2493                        )
 2494                    })?;
 2495                    match answer.await.log_err() {
 2496                        Some(0) => save_intent = SaveIntent::SaveAll,
 2497                        Some(1) => save_intent = SaveIntent::Skip,
 2498                        Some(2) => return Ok(false),
 2499                        _ => {}
 2500                    }
 2501                }
 2502
 2503                remaining_dirty_items
 2504            } else {
 2505                dirty_items
 2506            };
 2507
 2508            for (pane, item) in dirty_items {
 2509                let (singleton, project_entry_ids) =
 2510                    cx.update(|_, cx| (item.is_singleton(cx), item.project_entry_ids(cx)))?;
 2511                if (singleton || !project_entry_ids.is_empty())
 2512                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2513                {
 2514                    return Ok(false);
 2515                }
 2516            }
 2517            Ok(true)
 2518        })
 2519    }
 2520
 2521    pub fn open_workspace_for_paths(
 2522        &mut self,
 2523        replace_current_window: bool,
 2524        paths: Vec<PathBuf>,
 2525        window: &mut Window,
 2526        cx: &mut Context<Self>,
 2527    ) -> Task<Result<()>> {
 2528        let window_handle = window.window_handle().downcast::<Self>();
 2529        let is_remote = self.project.read(cx).is_via_collab();
 2530        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2531        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2532
 2533        let window_to_replace = if replace_current_window {
 2534            window_handle
 2535        } else if is_remote || has_worktree || has_dirty_items {
 2536            None
 2537        } else {
 2538            window_handle
 2539        };
 2540        let app_state = self.app_state.clone();
 2541
 2542        cx.spawn(async move |_, cx| {
 2543            cx.update(|cx| {
 2544                open_paths(
 2545                    &paths,
 2546                    app_state,
 2547                    OpenOptions {
 2548                        replace_window: window_to_replace,
 2549                        ..Default::default()
 2550                    },
 2551                    cx,
 2552                )
 2553            })?
 2554            .await?;
 2555            Ok(())
 2556        })
 2557    }
 2558
 2559    #[allow(clippy::type_complexity)]
 2560    pub fn open_paths(
 2561        &mut self,
 2562        mut abs_paths: Vec<PathBuf>,
 2563        options: OpenOptions,
 2564        pane: Option<WeakEntity<Pane>>,
 2565        window: &mut Window,
 2566        cx: &mut Context<Self>,
 2567    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2568        let fs = self.app_state.fs.clone();
 2569
 2570        // Sort the paths to ensure we add worktrees for parents before their children.
 2571        abs_paths.sort_unstable();
 2572        cx.spawn_in(window, async move |this, cx| {
 2573            let mut tasks = Vec::with_capacity(abs_paths.len());
 2574
 2575            for abs_path in &abs_paths {
 2576                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2577                    OpenVisible::All => Some(true),
 2578                    OpenVisible::None => Some(false),
 2579                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2580                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2581                        Some(None) => Some(true),
 2582                        None => None,
 2583                    },
 2584                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2585                        Some(Some(metadata)) => Some(metadata.is_dir),
 2586                        Some(None) => Some(false),
 2587                        None => None,
 2588                    },
 2589                };
 2590                let project_path = match visible {
 2591                    Some(visible) => match this
 2592                        .update(cx, |this, cx| {
 2593                            Workspace::project_path_for_path(
 2594                                this.project.clone(),
 2595                                abs_path,
 2596                                visible,
 2597                                cx,
 2598                            )
 2599                        })
 2600                        .log_err()
 2601                    {
 2602                        Some(project_path) => project_path.await.log_err(),
 2603                        None => None,
 2604                    },
 2605                    None => None,
 2606                };
 2607
 2608                let this = this.clone();
 2609                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2610                let fs = fs.clone();
 2611                let pane = pane.clone();
 2612                let task = cx.spawn(async move |cx| {
 2613                    let (worktree, project_path) = project_path?;
 2614                    if fs.is_dir(&abs_path).await {
 2615                        this.update(cx, |workspace, cx| {
 2616                            let worktree = worktree.read(cx);
 2617                            let worktree_abs_path = worktree.abs_path();
 2618                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2619                                worktree.root_entry()
 2620                            } else {
 2621                                abs_path
 2622                                    .strip_prefix(worktree_abs_path.as_ref())
 2623                                    .ok()
 2624                                    .and_then(|relative_path| {
 2625                                        worktree.entry_for_path(relative_path)
 2626                                    })
 2627                            }
 2628                            .map(|entry| entry.id);
 2629                            if let Some(entry_id) = entry_id {
 2630                                workspace.project.update(cx, |_, cx| {
 2631                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2632                                })
 2633                            }
 2634                        })
 2635                        .ok()?;
 2636                        None
 2637                    } else {
 2638                        Some(
 2639                            this.update_in(cx, |this, window, cx| {
 2640                                this.open_path(
 2641                                    project_path,
 2642                                    pane,
 2643                                    options.focus.unwrap_or(true),
 2644                                    window,
 2645                                    cx,
 2646                                )
 2647                            })
 2648                            .ok()?
 2649                            .await,
 2650                        )
 2651                    }
 2652                });
 2653                tasks.push(task);
 2654            }
 2655
 2656            futures::future::join_all(tasks).await
 2657        })
 2658    }
 2659
 2660    pub fn open_resolved_path(
 2661        &mut self,
 2662        path: ResolvedPath,
 2663        window: &mut Window,
 2664        cx: &mut Context<Self>,
 2665    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2666        match path {
 2667            ResolvedPath::ProjectPath { project_path, .. } => {
 2668                self.open_path(project_path, None, true, window, cx)
 2669            }
 2670            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2671                path,
 2672                OpenOptions {
 2673                    visible: Some(OpenVisible::None),
 2674                    ..Default::default()
 2675                },
 2676                window,
 2677                cx,
 2678            ),
 2679        }
 2680    }
 2681
 2682    pub fn absolute_path_of_worktree(
 2683        &self,
 2684        worktree_id: WorktreeId,
 2685        cx: &mut Context<Self>,
 2686    ) -> Option<PathBuf> {
 2687        self.project
 2688            .read(cx)
 2689            .worktree_for_id(worktree_id, cx)
 2690            // TODO: use `abs_path` or `root_dir`
 2691            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2692    }
 2693
 2694    fn add_folder_to_project(
 2695        &mut self,
 2696        _: &AddFolderToProject,
 2697        window: &mut Window,
 2698        cx: &mut Context<Self>,
 2699    ) {
 2700        let project = self.project.read(cx);
 2701        if project.is_via_collab() {
 2702            self.show_error(
 2703                &anyhow!("You cannot add folders to someone else's project"),
 2704                cx,
 2705            );
 2706            return;
 2707        }
 2708        let paths = self.prompt_for_open_path(
 2709            PathPromptOptions {
 2710                files: false,
 2711                directories: true,
 2712                multiple: true,
 2713                prompt: None,
 2714            },
 2715            DirectoryLister::Project(self.project.clone()),
 2716            window,
 2717            cx,
 2718        );
 2719        cx.spawn_in(window, async move |this, cx| {
 2720            if let Some(paths) = paths.await.log_err().flatten() {
 2721                let results = this
 2722                    .update_in(cx, |this, window, cx| {
 2723                        this.open_paths(
 2724                            paths,
 2725                            OpenOptions {
 2726                                visible: Some(OpenVisible::All),
 2727                                ..Default::default()
 2728                            },
 2729                            None,
 2730                            window,
 2731                            cx,
 2732                        )
 2733                    })?
 2734                    .await;
 2735                for result in results.into_iter().flatten() {
 2736                    result.log_err();
 2737                }
 2738            }
 2739            anyhow::Ok(())
 2740        })
 2741        .detach_and_log_err(cx);
 2742    }
 2743
 2744    pub fn project_path_for_path(
 2745        project: Entity<Project>,
 2746        abs_path: &Path,
 2747        visible: bool,
 2748        cx: &mut App,
 2749    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2750        let entry = project.update(cx, |project, cx| {
 2751            project.find_or_create_worktree(abs_path, visible, cx)
 2752        });
 2753        cx.spawn(async move |cx| {
 2754            let (worktree, path) = entry.await?;
 2755            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2756            Ok((
 2757                worktree,
 2758                ProjectPath {
 2759                    worktree_id,
 2760                    path: path.into(),
 2761                },
 2762            ))
 2763        })
 2764    }
 2765
 2766    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2767        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2768    }
 2769
 2770    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2771        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2772    }
 2773
 2774    pub fn items_of_type<'a, T: Item>(
 2775        &'a self,
 2776        cx: &'a App,
 2777    ) -> impl 'a + Iterator<Item = Entity<T>> {
 2778        self.panes
 2779            .iter()
 2780            .flat_map(|pane| pane.read(cx).items_of_type())
 2781    }
 2782
 2783    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 2784        self.active_pane().read(cx).active_item()
 2785    }
 2786
 2787    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 2788        let item = self.active_item(cx)?;
 2789        item.to_any().downcast::<I>().ok()
 2790    }
 2791
 2792    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 2793        self.active_item(cx).and_then(|item| item.project_path(cx))
 2794    }
 2795
 2796    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 2797        self.recent_navigation_history_iter(cx)
 2798            .filter_map(|(path, abs_path)| {
 2799                let worktree = self
 2800                    .project
 2801                    .read(cx)
 2802                    .worktree_for_id(path.worktree_id, cx)?;
 2803                if worktree.read(cx).is_visible() {
 2804                    abs_path
 2805                } else {
 2806                    None
 2807                }
 2808            })
 2809            .next()
 2810    }
 2811
 2812    pub fn save_active_item(
 2813        &mut self,
 2814        save_intent: SaveIntent,
 2815        window: &mut Window,
 2816        cx: &mut App,
 2817    ) -> Task<Result<()>> {
 2818        let project = self.project.clone();
 2819        let pane = self.active_pane();
 2820        let item = pane.read(cx).active_item();
 2821        let pane = pane.downgrade();
 2822
 2823        window.spawn(cx, async move |cx| {
 2824            if let Some(item) = item {
 2825                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 2826                    .await
 2827                    .map(|_| ())
 2828            } else {
 2829                Ok(())
 2830            }
 2831        })
 2832    }
 2833
 2834    pub fn close_inactive_items_and_panes(
 2835        &mut self,
 2836        action: &CloseInactiveTabsAndPanes,
 2837        window: &mut Window,
 2838        cx: &mut Context<Self>,
 2839    ) {
 2840        if let Some(task) = self.close_all_internal(
 2841            true,
 2842            action.save_intent.unwrap_or(SaveIntent::Close),
 2843            window,
 2844            cx,
 2845        ) {
 2846            task.detach_and_log_err(cx)
 2847        }
 2848    }
 2849
 2850    pub fn close_all_items_and_panes(
 2851        &mut self,
 2852        action: &CloseAllItemsAndPanes,
 2853        window: &mut Window,
 2854        cx: &mut Context<Self>,
 2855    ) {
 2856        if let Some(task) = self.close_all_internal(
 2857            false,
 2858            action.save_intent.unwrap_or(SaveIntent::Close),
 2859            window,
 2860            cx,
 2861        ) {
 2862            task.detach_and_log_err(cx)
 2863        }
 2864    }
 2865
 2866    fn close_all_internal(
 2867        &mut self,
 2868        retain_active_pane: bool,
 2869        save_intent: SaveIntent,
 2870        window: &mut Window,
 2871        cx: &mut Context<Self>,
 2872    ) -> Option<Task<Result<()>>> {
 2873        let current_pane = self.active_pane();
 2874
 2875        let mut tasks = Vec::new();
 2876
 2877        if retain_active_pane {
 2878            let current_pane_close = current_pane.update(cx, |pane, cx| {
 2879                pane.close_other_items(
 2880                    &CloseOtherItems {
 2881                        save_intent: None,
 2882                        close_pinned: false,
 2883                    },
 2884                    None,
 2885                    window,
 2886                    cx,
 2887                )
 2888            });
 2889
 2890            tasks.push(current_pane_close);
 2891        }
 2892
 2893        for pane in self.panes() {
 2894            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 2895                continue;
 2896            }
 2897
 2898            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 2899                pane.close_all_items(
 2900                    &CloseAllItems {
 2901                        save_intent: Some(save_intent),
 2902                        close_pinned: false,
 2903                    },
 2904                    window,
 2905                    cx,
 2906                )
 2907            });
 2908
 2909            tasks.push(close_pane_items)
 2910        }
 2911
 2912        if tasks.is_empty() {
 2913            None
 2914        } else {
 2915            Some(cx.spawn_in(window, async move |_, _| {
 2916                for task in tasks {
 2917                    task.await?
 2918                }
 2919                Ok(())
 2920            }))
 2921        }
 2922    }
 2923
 2924    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 2925        self.dock_at_position(position).read(cx).is_open()
 2926    }
 2927
 2928    pub fn toggle_dock(
 2929        &mut self,
 2930        dock_side: DockPosition,
 2931        window: &mut Window,
 2932        cx: &mut Context<Self>,
 2933    ) {
 2934        let dock = self.dock_at_position(dock_side);
 2935        let mut focus_center = false;
 2936        let mut reveal_dock = false;
 2937        dock.update(cx, |dock, cx| {
 2938            let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 2939            let was_visible = dock.is_open() && !other_is_zoomed;
 2940            dock.set_open(!was_visible, window, cx);
 2941
 2942            if dock.active_panel().is_none() {
 2943                let Some(panel_ix) = dock
 2944                    .first_enabled_panel_idx(cx)
 2945                    .log_with_level(log::Level::Info)
 2946                else {
 2947                    return;
 2948                };
 2949                dock.activate_panel(panel_ix, window, cx);
 2950            }
 2951
 2952            if let Some(active_panel) = dock.active_panel() {
 2953                if was_visible {
 2954                    if active_panel
 2955                        .panel_focus_handle(cx)
 2956                        .contains_focused(window, cx)
 2957                    {
 2958                        focus_center = true;
 2959                    }
 2960                } else {
 2961                    let focus_handle = &active_panel.panel_focus_handle(cx);
 2962                    window.focus(focus_handle);
 2963                    reveal_dock = true;
 2964                }
 2965            }
 2966        });
 2967
 2968        if reveal_dock {
 2969            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 2970        }
 2971
 2972        if focus_center {
 2973            self.active_pane
 2974                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 2975        }
 2976
 2977        cx.notify();
 2978        self.serialize_workspace(window, cx);
 2979    }
 2980
 2981    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 2982        self.all_docks().into_iter().find(|&dock| {
 2983            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 2984        })
 2985    }
 2986
 2987    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 2988        if let Some(dock) = self.active_dock(window, cx) {
 2989            dock.update(cx, |dock, cx| {
 2990                dock.set_open(false, window, cx);
 2991            });
 2992            return true;
 2993        }
 2994        false
 2995    }
 2996
 2997    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 2998        for dock in self.all_docks() {
 2999            dock.update(cx, |dock, cx| {
 3000                dock.set_open(false, window, cx);
 3001            });
 3002        }
 3003
 3004        cx.focus_self(window);
 3005        cx.notify();
 3006        self.serialize_workspace(window, cx);
 3007    }
 3008
 3009    /// Transfer focus to the panel of the given type.
 3010    pub fn focus_panel<T: Panel>(
 3011        &mut self,
 3012        window: &mut Window,
 3013        cx: &mut Context<Self>,
 3014    ) -> Option<Entity<T>> {
 3015        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3016        panel.to_any().downcast().ok()
 3017    }
 3018
 3019    /// Focus the panel of the given type if it isn't already focused. If it is
 3020    /// already focused, then transfer focus back to the workspace center.
 3021    pub fn toggle_panel_focus<T: Panel>(
 3022        &mut self,
 3023        window: &mut Window,
 3024        cx: &mut Context<Self>,
 3025    ) -> bool {
 3026        let mut did_focus_panel = false;
 3027        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3028            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3029            did_focus_panel
 3030        });
 3031        did_focus_panel
 3032    }
 3033
 3034    pub fn activate_panel_for_proto_id(
 3035        &mut self,
 3036        panel_id: PanelId,
 3037        window: &mut Window,
 3038        cx: &mut Context<Self>,
 3039    ) -> Option<Arc<dyn PanelHandle>> {
 3040        let mut panel = None;
 3041        for dock in self.all_docks() {
 3042            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3043                panel = dock.update(cx, |dock, cx| {
 3044                    dock.activate_panel(panel_index, window, cx);
 3045                    dock.set_open(true, window, cx);
 3046                    dock.active_panel().cloned()
 3047                });
 3048                break;
 3049            }
 3050        }
 3051
 3052        if panel.is_some() {
 3053            cx.notify();
 3054            self.serialize_workspace(window, cx);
 3055        }
 3056
 3057        panel
 3058    }
 3059
 3060    /// Focus or unfocus the given panel type, depending on the given callback.
 3061    fn focus_or_unfocus_panel<T: Panel>(
 3062        &mut self,
 3063        window: &mut Window,
 3064        cx: &mut Context<Self>,
 3065        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3066    ) -> Option<Arc<dyn PanelHandle>> {
 3067        let mut result_panel = None;
 3068        let mut serialize = false;
 3069        for dock in self.all_docks() {
 3070            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3071                let mut focus_center = false;
 3072                let panel = dock.update(cx, |dock, cx| {
 3073                    dock.activate_panel(panel_index, window, cx);
 3074
 3075                    let panel = dock.active_panel().cloned();
 3076                    if let Some(panel) = panel.as_ref() {
 3077                        if should_focus(&**panel, window, cx) {
 3078                            dock.set_open(true, window, cx);
 3079                            panel.panel_focus_handle(cx).focus(window);
 3080                        } else {
 3081                            focus_center = true;
 3082                        }
 3083                    }
 3084                    panel
 3085                });
 3086
 3087                if focus_center {
 3088                    self.active_pane
 3089                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3090                }
 3091
 3092                result_panel = panel;
 3093                serialize = true;
 3094                break;
 3095            }
 3096        }
 3097
 3098        if serialize {
 3099            self.serialize_workspace(window, cx);
 3100        }
 3101
 3102        cx.notify();
 3103        result_panel
 3104    }
 3105
 3106    /// Open the panel of the given type
 3107    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3108        for dock in self.all_docks() {
 3109            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3110                dock.update(cx, |dock, cx| {
 3111                    dock.activate_panel(panel_index, window, cx);
 3112                    dock.set_open(true, window, cx);
 3113                });
 3114            }
 3115        }
 3116    }
 3117
 3118    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3119        for dock in self.all_docks().iter() {
 3120            dock.update(cx, |dock, cx| {
 3121                if dock.panel::<T>().is_some() {
 3122                    dock.set_open(false, window, cx)
 3123                }
 3124            })
 3125        }
 3126    }
 3127
 3128    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3129        self.all_docks()
 3130            .iter()
 3131            .find_map(|dock| dock.read(cx).panel::<T>())
 3132    }
 3133
 3134    fn dismiss_zoomed_items_to_reveal(
 3135        &mut self,
 3136        dock_to_reveal: Option<DockPosition>,
 3137        window: &mut Window,
 3138        cx: &mut Context<Self>,
 3139    ) {
 3140        // If a center pane is zoomed, unzoom it.
 3141        for pane in &self.panes {
 3142            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3143                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3144            }
 3145        }
 3146
 3147        // If another dock is zoomed, hide it.
 3148        let mut focus_center = false;
 3149        for dock in self.all_docks() {
 3150            dock.update(cx, |dock, cx| {
 3151                if Some(dock.position()) != dock_to_reveal
 3152                    && let Some(panel) = dock.active_panel()
 3153                    && panel.is_zoomed(window, cx)
 3154                {
 3155                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3156                    dock.set_open(false, window, cx);
 3157                }
 3158            });
 3159        }
 3160
 3161        if focus_center {
 3162            self.active_pane
 3163                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3164        }
 3165
 3166        if self.zoomed_position != dock_to_reveal {
 3167            self.zoomed = None;
 3168            self.zoomed_position = None;
 3169            cx.emit(Event::ZoomChanged);
 3170        }
 3171
 3172        cx.notify();
 3173    }
 3174
 3175    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3176        let pane = cx.new(|cx| {
 3177            let mut pane = Pane::new(
 3178                self.weak_handle(),
 3179                self.project.clone(),
 3180                self.pane_history_timestamp.clone(),
 3181                None,
 3182                NewFile.boxed_clone(),
 3183                window,
 3184                cx,
 3185            );
 3186            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3187            pane
 3188        });
 3189        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3190            .detach();
 3191        self.panes.push(pane.clone());
 3192
 3193        window.focus(&pane.focus_handle(cx));
 3194
 3195        cx.emit(Event::PaneAdded(pane.clone()));
 3196        pane
 3197    }
 3198
 3199    pub fn add_item_to_center(
 3200        &mut self,
 3201        item: Box<dyn ItemHandle>,
 3202        window: &mut Window,
 3203        cx: &mut Context<Self>,
 3204    ) -> bool {
 3205        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3206            if let Some(center_pane) = center_pane.upgrade() {
 3207                center_pane.update(cx, |pane, cx| {
 3208                    pane.add_item(item, true, true, None, window, cx)
 3209                });
 3210                true
 3211            } else {
 3212                false
 3213            }
 3214        } else {
 3215            false
 3216        }
 3217    }
 3218
 3219    pub fn add_item_to_active_pane(
 3220        &mut self,
 3221        item: Box<dyn ItemHandle>,
 3222        destination_index: Option<usize>,
 3223        focus_item: bool,
 3224        window: &mut Window,
 3225        cx: &mut App,
 3226    ) {
 3227        self.add_item(
 3228            self.active_pane.clone(),
 3229            item,
 3230            destination_index,
 3231            false,
 3232            focus_item,
 3233            window,
 3234            cx,
 3235        )
 3236    }
 3237
 3238    pub fn add_item(
 3239        &mut self,
 3240        pane: Entity<Pane>,
 3241        item: Box<dyn ItemHandle>,
 3242        destination_index: Option<usize>,
 3243        activate_pane: bool,
 3244        focus_item: bool,
 3245        window: &mut Window,
 3246        cx: &mut App,
 3247    ) {
 3248        if let Some(text) = item.telemetry_event_text(cx) {
 3249            telemetry::event!(text);
 3250        }
 3251
 3252        pane.update(cx, |pane, cx| {
 3253            pane.add_item(
 3254                item,
 3255                activate_pane,
 3256                focus_item,
 3257                destination_index,
 3258                window,
 3259                cx,
 3260            )
 3261        });
 3262    }
 3263
 3264    pub fn split_item(
 3265        &mut self,
 3266        split_direction: SplitDirection,
 3267        item: Box<dyn ItemHandle>,
 3268        window: &mut Window,
 3269        cx: &mut Context<Self>,
 3270    ) {
 3271        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3272        self.add_item(new_pane, item, None, true, true, window, cx);
 3273    }
 3274
 3275    pub fn open_abs_path(
 3276        &mut self,
 3277        abs_path: PathBuf,
 3278        options: OpenOptions,
 3279        window: &mut Window,
 3280        cx: &mut Context<Self>,
 3281    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3282        cx.spawn_in(window, async move |workspace, cx| {
 3283            let open_paths_task_result = workspace
 3284                .update_in(cx, |workspace, window, cx| {
 3285                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3286                })
 3287                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3288                .await;
 3289            anyhow::ensure!(
 3290                open_paths_task_result.len() == 1,
 3291                "open abs path {abs_path:?} task returned incorrect number of results"
 3292            );
 3293            match open_paths_task_result
 3294                .into_iter()
 3295                .next()
 3296                .expect("ensured single task result")
 3297            {
 3298                Some(open_result) => {
 3299                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3300                }
 3301                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3302            }
 3303        })
 3304    }
 3305
 3306    pub fn split_abs_path(
 3307        &mut self,
 3308        abs_path: PathBuf,
 3309        visible: bool,
 3310        window: &mut Window,
 3311        cx: &mut Context<Self>,
 3312    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3313        let project_path_task =
 3314            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3315        cx.spawn_in(window, async move |this, cx| {
 3316            let (_, path) = project_path_task.await?;
 3317            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3318                .await
 3319        })
 3320    }
 3321
 3322    pub fn open_path(
 3323        &mut self,
 3324        path: impl Into<ProjectPath>,
 3325        pane: Option<WeakEntity<Pane>>,
 3326        focus_item: bool,
 3327        window: &mut Window,
 3328        cx: &mut App,
 3329    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3330        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3331    }
 3332
 3333    pub fn open_path_preview(
 3334        &mut self,
 3335        path: impl Into<ProjectPath>,
 3336        pane: Option<WeakEntity<Pane>>,
 3337        focus_item: bool,
 3338        allow_preview: bool,
 3339        activate: bool,
 3340        window: &mut Window,
 3341        cx: &mut App,
 3342    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3343        let pane = pane.unwrap_or_else(|| {
 3344            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3345                self.panes
 3346                    .first()
 3347                    .expect("There must be an active pane")
 3348                    .downgrade()
 3349            })
 3350        });
 3351
 3352        let project_path = path.into();
 3353        let task = self.load_path(project_path.clone(), window, cx);
 3354        window.spawn(cx, async move |cx| {
 3355            let (project_entry_id, build_item) = task.await?;
 3356
 3357            pane.update_in(cx, |pane, window, cx| {
 3358                pane.open_item(
 3359                    project_entry_id,
 3360                    project_path,
 3361                    focus_item,
 3362                    allow_preview,
 3363                    activate,
 3364                    None,
 3365                    window,
 3366                    cx,
 3367                    build_item,
 3368                )
 3369            })
 3370        })
 3371    }
 3372
 3373    pub fn split_path(
 3374        &mut self,
 3375        path: impl Into<ProjectPath>,
 3376        window: &mut Window,
 3377        cx: &mut Context<Self>,
 3378    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3379        self.split_path_preview(path, false, None, window, cx)
 3380    }
 3381
 3382    pub fn split_path_preview(
 3383        &mut self,
 3384        path: impl Into<ProjectPath>,
 3385        allow_preview: bool,
 3386        split_direction: Option<SplitDirection>,
 3387        window: &mut Window,
 3388        cx: &mut Context<Self>,
 3389    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3390        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3391            self.panes
 3392                .first()
 3393                .expect("There must be an active pane")
 3394                .downgrade()
 3395        });
 3396
 3397        if let Member::Pane(center_pane) = &self.center.root
 3398            && center_pane.read(cx).items_len() == 0
 3399        {
 3400            return self.open_path(path, Some(pane), true, window, cx);
 3401        }
 3402
 3403        let project_path = path.into();
 3404        let task = self.load_path(project_path.clone(), window, cx);
 3405        cx.spawn_in(window, async move |this, cx| {
 3406            let (project_entry_id, build_item) = task.await?;
 3407            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3408                let pane = pane.upgrade()?;
 3409                let new_pane = this.split_pane(
 3410                    pane,
 3411                    split_direction.unwrap_or(SplitDirection::Right),
 3412                    window,
 3413                    cx,
 3414                );
 3415                new_pane.update(cx, |new_pane, cx| {
 3416                    Some(new_pane.open_item(
 3417                        project_entry_id,
 3418                        project_path,
 3419                        true,
 3420                        allow_preview,
 3421                        true,
 3422                        None,
 3423                        window,
 3424                        cx,
 3425                        build_item,
 3426                    ))
 3427                })
 3428            })
 3429            .map(|option| option.context("pane was dropped"))?
 3430        })
 3431    }
 3432
 3433    fn load_path(
 3434        &mut self,
 3435        path: ProjectPath,
 3436        window: &mut Window,
 3437        cx: &mut App,
 3438    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3439        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3440        registry.open_path(self.project(), &path, window, cx)
 3441    }
 3442
 3443    pub fn find_project_item<T>(
 3444        &self,
 3445        pane: &Entity<Pane>,
 3446        project_item: &Entity<T::Item>,
 3447        cx: &App,
 3448    ) -> Option<Entity<T>>
 3449    where
 3450        T: ProjectItem,
 3451    {
 3452        use project::ProjectItem as _;
 3453        let project_item = project_item.read(cx);
 3454        let entry_id = project_item.entry_id(cx);
 3455        let project_path = project_item.project_path(cx);
 3456
 3457        let mut item = None;
 3458        if let Some(entry_id) = entry_id {
 3459            item = pane.read(cx).item_for_entry(entry_id, cx);
 3460        }
 3461        if item.is_none()
 3462            && let Some(project_path) = project_path
 3463        {
 3464            item = pane.read(cx).item_for_path(project_path, cx);
 3465        }
 3466
 3467        item.and_then(|item| item.downcast::<T>())
 3468    }
 3469
 3470    pub fn is_project_item_open<T>(
 3471        &self,
 3472        pane: &Entity<Pane>,
 3473        project_item: &Entity<T::Item>,
 3474        cx: &App,
 3475    ) -> bool
 3476    where
 3477        T: ProjectItem,
 3478    {
 3479        self.find_project_item::<T>(pane, project_item, cx)
 3480            .is_some()
 3481    }
 3482
 3483    pub fn open_project_item<T>(
 3484        &mut self,
 3485        pane: Entity<Pane>,
 3486        project_item: Entity<T::Item>,
 3487        activate_pane: bool,
 3488        focus_item: bool,
 3489        window: &mut Window,
 3490        cx: &mut Context<Self>,
 3491    ) -> Entity<T>
 3492    where
 3493        T: ProjectItem,
 3494    {
 3495        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3496            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3497            return item;
 3498        }
 3499
 3500        let item = pane.update(cx, |pane, cx| {
 3501            cx.new(|cx| {
 3502                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3503            })
 3504        });
 3505        let item_id = item.item_id();
 3506        let mut destination_index = None;
 3507        pane.update(cx, |pane, cx| {
 3508            if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation
 3509                && let Some(preview_item_id) = pane.preview_item_id()
 3510                && preview_item_id != item_id
 3511            {
 3512                destination_index = pane.close_current_preview_item(window, cx);
 3513            }
 3514            pane.set_preview_item_id(Some(item.item_id()), cx)
 3515        });
 3516
 3517        self.add_item(
 3518            pane,
 3519            Box::new(item.clone()),
 3520            destination_index,
 3521            activate_pane,
 3522            focus_item,
 3523            window,
 3524            cx,
 3525        );
 3526        item
 3527    }
 3528
 3529    pub fn open_shared_screen(
 3530        &mut self,
 3531        peer_id: PeerId,
 3532        window: &mut Window,
 3533        cx: &mut Context<Self>,
 3534    ) {
 3535        if let Some(shared_screen) =
 3536            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3537        {
 3538            self.active_pane.update(cx, |pane, cx| {
 3539                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3540            });
 3541        }
 3542    }
 3543
 3544    pub fn activate_item(
 3545        &mut self,
 3546        item: &dyn ItemHandle,
 3547        activate_pane: bool,
 3548        focus_item: bool,
 3549        window: &mut Window,
 3550        cx: &mut App,
 3551    ) -> bool {
 3552        let result = self.panes.iter().find_map(|pane| {
 3553            pane.read(cx)
 3554                .index_for_item(item)
 3555                .map(|ix| (pane.clone(), ix))
 3556        });
 3557        if let Some((pane, ix)) = result {
 3558            pane.update(cx, |pane, cx| {
 3559                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3560            });
 3561            true
 3562        } else {
 3563            false
 3564        }
 3565    }
 3566
 3567    fn activate_pane_at_index(
 3568        &mut self,
 3569        action: &ActivatePane,
 3570        window: &mut Window,
 3571        cx: &mut Context<Self>,
 3572    ) {
 3573        let panes = self.center.panes();
 3574        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3575            window.focus(&pane.focus_handle(cx));
 3576        } else {
 3577            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx);
 3578        }
 3579    }
 3580
 3581    fn move_item_to_pane_at_index(
 3582        &mut self,
 3583        action: &MoveItemToPane,
 3584        window: &mut Window,
 3585        cx: &mut Context<Self>,
 3586    ) {
 3587        let panes = self.center.panes();
 3588        let destination = match panes.get(action.destination) {
 3589            Some(&destination) => destination.clone(),
 3590            None => {
 3591                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3592                    return;
 3593                }
 3594                let direction = SplitDirection::Right;
 3595                let split_off_pane = self
 3596                    .find_pane_in_direction(direction, cx)
 3597                    .unwrap_or_else(|| self.active_pane.clone());
 3598                let new_pane = self.add_pane(window, cx);
 3599                if self
 3600                    .center
 3601                    .split(&split_off_pane, &new_pane, direction)
 3602                    .log_err()
 3603                    .is_none()
 3604                {
 3605                    return;
 3606                };
 3607                new_pane
 3608            }
 3609        };
 3610
 3611        if action.clone {
 3612            clone_active_item(
 3613                self.database_id(),
 3614                &self.active_pane,
 3615                &destination,
 3616                action.focus,
 3617                window,
 3618                cx,
 3619            )
 3620        } else {
 3621            move_active_item(
 3622                &self.active_pane,
 3623                &destination,
 3624                action.focus,
 3625                true,
 3626                window,
 3627                cx,
 3628            )
 3629        }
 3630    }
 3631
 3632    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3633        let panes = self.center.panes();
 3634        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3635            let next_ix = (ix + 1) % panes.len();
 3636            let next_pane = panes[next_ix].clone();
 3637            window.focus(&next_pane.focus_handle(cx));
 3638        }
 3639    }
 3640
 3641    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3642        let panes = self.center.panes();
 3643        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3644            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3645            let prev_pane = panes[prev_ix].clone();
 3646            window.focus(&prev_pane.focus_handle(cx));
 3647        }
 3648    }
 3649
 3650    pub fn activate_pane_in_direction(
 3651        &mut self,
 3652        direction: SplitDirection,
 3653        window: &mut Window,
 3654        cx: &mut App,
 3655    ) {
 3656        use ActivateInDirectionTarget as Target;
 3657        enum Origin {
 3658            LeftDock,
 3659            RightDock,
 3660            BottomDock,
 3661            Center,
 3662        }
 3663
 3664        let origin: Origin = [
 3665            (&self.left_dock, Origin::LeftDock),
 3666            (&self.right_dock, Origin::RightDock),
 3667            (&self.bottom_dock, Origin::BottomDock),
 3668        ]
 3669        .into_iter()
 3670        .find_map(|(dock, origin)| {
 3671            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3672                Some(origin)
 3673            } else {
 3674                None
 3675            }
 3676        })
 3677        .unwrap_or(Origin::Center);
 3678
 3679        let get_last_active_pane = || {
 3680            let pane = self
 3681                .last_active_center_pane
 3682                .clone()
 3683                .unwrap_or_else(|| {
 3684                    self.panes
 3685                        .first()
 3686                        .expect("There must be an active pane")
 3687                        .downgrade()
 3688                })
 3689                .upgrade()?;
 3690            (pane.read(cx).items_len() != 0).then_some(pane)
 3691        };
 3692
 3693        let try_dock =
 3694            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 3695
 3696        let target = match (origin, direction) {
 3697            // We're in the center, so we first try to go to a different pane,
 3698            // otherwise try to go to a dock.
 3699            (Origin::Center, direction) => {
 3700                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 3701                    Some(Target::Pane(pane))
 3702                } else {
 3703                    match direction {
 3704                        SplitDirection::Up => None,
 3705                        SplitDirection::Down => try_dock(&self.bottom_dock),
 3706                        SplitDirection::Left => try_dock(&self.left_dock),
 3707                        SplitDirection::Right => try_dock(&self.right_dock),
 3708                    }
 3709                }
 3710            }
 3711
 3712            (Origin::LeftDock, SplitDirection::Right) => {
 3713                if let Some(last_active_pane) = get_last_active_pane() {
 3714                    Some(Target::Pane(last_active_pane))
 3715                } else {
 3716                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 3717                }
 3718            }
 3719
 3720            (Origin::LeftDock, SplitDirection::Down)
 3721            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 3722
 3723            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 3724            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 3725            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 3726
 3727            (Origin::RightDock, SplitDirection::Left) => {
 3728                if let Some(last_active_pane) = get_last_active_pane() {
 3729                    Some(Target::Pane(last_active_pane))
 3730                } else {
 3731                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 3732                }
 3733            }
 3734
 3735            _ => None,
 3736        };
 3737
 3738        match target {
 3739            Some(ActivateInDirectionTarget::Pane(pane)) => {
 3740                let pane = pane.read(cx);
 3741                if let Some(item) = pane.active_item() {
 3742                    item.item_focus_handle(cx).focus(window);
 3743                } else {
 3744                    log::error!(
 3745                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 3746                    );
 3747                }
 3748            }
 3749            Some(ActivateInDirectionTarget::Dock(dock)) => {
 3750                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 3751                window.defer(cx, move |window, cx| {
 3752                    let dock = dock.read(cx);
 3753                    if let Some(panel) = dock.active_panel() {
 3754                        panel.panel_focus_handle(cx).focus(window);
 3755                    } else {
 3756                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 3757                    }
 3758                })
 3759            }
 3760            None => {}
 3761        }
 3762    }
 3763
 3764    pub fn move_item_to_pane_in_direction(
 3765        &mut self,
 3766        action: &MoveItemToPaneInDirection,
 3767        window: &mut Window,
 3768        cx: &mut Context<Self>,
 3769    ) {
 3770        let destination = match self.find_pane_in_direction(action.direction, cx) {
 3771            Some(destination) => destination,
 3772            None => {
 3773                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3774                    return;
 3775                }
 3776                let new_pane = self.add_pane(window, cx);
 3777                if self
 3778                    .center
 3779                    .split(&self.active_pane, &new_pane, action.direction)
 3780                    .log_err()
 3781                    .is_none()
 3782                {
 3783                    return;
 3784                };
 3785                new_pane
 3786            }
 3787        };
 3788
 3789        if action.clone {
 3790            clone_active_item(
 3791                self.database_id(),
 3792                &self.active_pane,
 3793                &destination,
 3794                action.focus,
 3795                window,
 3796                cx,
 3797            )
 3798        } else {
 3799            move_active_item(
 3800                &self.active_pane,
 3801                &destination,
 3802                action.focus,
 3803                true,
 3804                window,
 3805                cx,
 3806            );
 3807        }
 3808    }
 3809
 3810    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 3811        self.center.bounding_box_for_pane(pane)
 3812    }
 3813
 3814    pub fn find_pane_in_direction(
 3815        &mut self,
 3816        direction: SplitDirection,
 3817        cx: &App,
 3818    ) -> Option<Entity<Pane>> {
 3819        self.center
 3820            .find_pane_in_direction(&self.active_pane, direction, cx)
 3821            .cloned()
 3822    }
 3823
 3824    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 3825        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 3826            self.center.swap(&self.active_pane, &to);
 3827            cx.notify();
 3828        }
 3829    }
 3830
 3831    pub fn resize_pane(
 3832        &mut self,
 3833        axis: gpui::Axis,
 3834        amount: Pixels,
 3835        window: &mut Window,
 3836        cx: &mut Context<Self>,
 3837    ) {
 3838        let docks = self.all_docks();
 3839        let active_dock = docks
 3840            .into_iter()
 3841            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 3842
 3843        if let Some(dock) = active_dock {
 3844            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 3845                return;
 3846            };
 3847            match dock.read(cx).position() {
 3848                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 3849                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 3850                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 3851            }
 3852        } else {
 3853            self.center
 3854                .resize(&self.active_pane, axis, amount, &self.bounds);
 3855        }
 3856        cx.notify();
 3857    }
 3858
 3859    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 3860        self.center.reset_pane_sizes();
 3861        cx.notify();
 3862    }
 3863
 3864    fn handle_pane_focused(
 3865        &mut self,
 3866        pane: Entity<Pane>,
 3867        window: &mut Window,
 3868        cx: &mut Context<Self>,
 3869    ) {
 3870        // This is explicitly hoisted out of the following check for pane identity as
 3871        // terminal panel panes are not registered as a center panes.
 3872        self.status_bar.update(cx, |status_bar, cx| {
 3873            status_bar.set_active_pane(&pane, window, cx);
 3874        });
 3875        if self.active_pane != pane {
 3876            self.set_active_pane(&pane, window, cx);
 3877        }
 3878
 3879        if self.last_active_center_pane.is_none() {
 3880            self.last_active_center_pane = Some(pane.downgrade());
 3881        }
 3882
 3883        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 3884        if pane.read(cx).is_zoomed() {
 3885            self.zoomed = Some(pane.downgrade().into());
 3886        } else {
 3887            self.zoomed = None;
 3888        }
 3889        self.zoomed_position = None;
 3890        cx.emit(Event::ZoomChanged);
 3891        self.update_active_view_for_followers(window, cx);
 3892        pane.update(cx, |pane, _| {
 3893            pane.track_alternate_file_items();
 3894        });
 3895
 3896        cx.notify();
 3897    }
 3898
 3899    fn set_active_pane(
 3900        &mut self,
 3901        pane: &Entity<Pane>,
 3902        window: &mut Window,
 3903        cx: &mut Context<Self>,
 3904    ) {
 3905        self.active_pane = pane.clone();
 3906        self.active_item_path_changed(window, cx);
 3907        self.last_active_center_pane = Some(pane.downgrade());
 3908    }
 3909
 3910    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3911        self.update_active_view_for_followers(window, cx);
 3912    }
 3913
 3914    fn handle_pane_event(
 3915        &mut self,
 3916        pane: &Entity<Pane>,
 3917        event: &pane::Event,
 3918        window: &mut Window,
 3919        cx: &mut Context<Self>,
 3920    ) {
 3921        let mut serialize_workspace = true;
 3922        match event {
 3923            pane::Event::AddItem { item } => {
 3924                item.added_to_pane(self, pane.clone(), window, cx);
 3925                cx.emit(Event::ItemAdded {
 3926                    item: item.boxed_clone(),
 3927                });
 3928            }
 3929            pane::Event::Split {
 3930                direction,
 3931                clone_active_item,
 3932            } => {
 3933                if *clone_active_item {
 3934                    self.split_and_clone(pane.clone(), *direction, window, cx);
 3935                } else {
 3936                    self.split_and_move(pane.clone(), *direction, window, cx);
 3937                }
 3938            }
 3939            pane::Event::JoinIntoNext => {
 3940                self.join_pane_into_next(pane.clone(), window, cx);
 3941            }
 3942            pane::Event::JoinAll => {
 3943                self.join_all_panes(window, cx);
 3944            }
 3945            pane::Event::Remove { focus_on_pane } => {
 3946                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 3947            }
 3948            pane::Event::ActivateItem {
 3949                local,
 3950                focus_changed,
 3951            } => {
 3952                window.invalidate_character_coordinates();
 3953
 3954                pane.update(cx, |pane, _| {
 3955                    pane.track_alternate_file_items();
 3956                });
 3957                if *local {
 3958                    self.unfollow_in_pane(pane, window, cx);
 3959                }
 3960                serialize_workspace = *focus_changed || pane != self.active_pane();
 3961                if pane == self.active_pane() {
 3962                    self.active_item_path_changed(window, cx);
 3963                    self.update_active_view_for_followers(window, cx);
 3964                } else if *local {
 3965                    self.set_active_pane(pane, window, cx);
 3966                }
 3967            }
 3968            pane::Event::UserSavedItem { item, save_intent } => {
 3969                cx.emit(Event::UserSavedItem {
 3970                    pane: pane.downgrade(),
 3971                    item: item.boxed_clone(),
 3972                    save_intent: *save_intent,
 3973                });
 3974                serialize_workspace = false;
 3975            }
 3976            pane::Event::ChangeItemTitle => {
 3977                if *pane == self.active_pane {
 3978                    self.active_item_path_changed(window, cx);
 3979                }
 3980                serialize_workspace = false;
 3981            }
 3982            pane::Event::RemovedItem { item } => {
 3983                cx.emit(Event::ActiveItemChanged);
 3984                self.update_window_edited(window, cx);
 3985                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 3986                    && entry.get().entity_id() == pane.entity_id()
 3987                {
 3988                    entry.remove();
 3989                }
 3990                cx.emit(Event::ItemRemoved {
 3991                    item_id: item.item_id(),
 3992                });
 3993            }
 3994            pane::Event::Focus => {
 3995                window.invalidate_character_coordinates();
 3996                self.handle_pane_focused(pane.clone(), window, cx);
 3997            }
 3998            pane::Event::ZoomIn => {
 3999                if *pane == self.active_pane {
 4000                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4001                    if pane.read(cx).has_focus(window, cx) {
 4002                        self.zoomed = Some(pane.downgrade().into());
 4003                        self.zoomed_position = None;
 4004                        cx.emit(Event::ZoomChanged);
 4005                    }
 4006                    cx.notify();
 4007                }
 4008            }
 4009            pane::Event::ZoomOut => {
 4010                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4011                if self.zoomed_position.is_none() {
 4012                    self.zoomed = None;
 4013                    cx.emit(Event::ZoomChanged);
 4014                }
 4015                cx.notify();
 4016            }
 4017            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4018        }
 4019
 4020        if serialize_workspace {
 4021            self.serialize_workspace(window, cx);
 4022        }
 4023    }
 4024
 4025    pub fn unfollow_in_pane(
 4026        &mut self,
 4027        pane: &Entity<Pane>,
 4028        window: &mut Window,
 4029        cx: &mut Context<Workspace>,
 4030    ) -> Option<CollaboratorId> {
 4031        let leader_id = self.leader_for_pane(pane)?;
 4032        self.unfollow(leader_id, window, cx);
 4033        Some(leader_id)
 4034    }
 4035
 4036    pub fn split_pane(
 4037        &mut self,
 4038        pane_to_split: Entity<Pane>,
 4039        split_direction: SplitDirection,
 4040        window: &mut Window,
 4041        cx: &mut Context<Self>,
 4042    ) -> Entity<Pane> {
 4043        let new_pane = self.add_pane(window, cx);
 4044        self.center
 4045            .split(&pane_to_split, &new_pane, split_direction)
 4046            .unwrap();
 4047        cx.notify();
 4048        new_pane
 4049    }
 4050
 4051    pub fn split_and_move(
 4052        &mut self,
 4053        pane: Entity<Pane>,
 4054        direction: SplitDirection,
 4055        window: &mut Window,
 4056        cx: &mut Context<Self>,
 4057    ) {
 4058        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4059            return;
 4060        };
 4061        let new_pane = self.add_pane(window, cx);
 4062        new_pane.update(cx, |pane, cx| {
 4063            pane.add_item(item, true, true, None, window, cx)
 4064        });
 4065        self.center.split(&pane, &new_pane, direction).unwrap();
 4066        cx.notify();
 4067    }
 4068
 4069    pub fn split_and_clone(
 4070        &mut self,
 4071        pane: Entity<Pane>,
 4072        direction: SplitDirection,
 4073        window: &mut Window,
 4074        cx: &mut Context<Self>,
 4075    ) -> Option<Entity<Pane>> {
 4076        let item = pane.read(cx).active_item()?;
 4077        let maybe_pane_handle =
 4078            if let Some(clone) = item.clone_on_split(self.database_id(), window, cx) {
 4079                let new_pane = self.add_pane(window, cx);
 4080                new_pane.update(cx, |pane, cx| {
 4081                    pane.add_item(clone, true, true, None, window, cx)
 4082                });
 4083                self.center.split(&pane, &new_pane, direction).unwrap();
 4084                Some(new_pane)
 4085            } else {
 4086                None
 4087            };
 4088        cx.notify();
 4089        maybe_pane_handle
 4090    }
 4091
 4092    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4093        let active_item = self.active_pane.read(cx).active_item();
 4094        for pane in &self.panes {
 4095            join_pane_into_active(&self.active_pane, pane, window, cx);
 4096        }
 4097        if let Some(active_item) = active_item {
 4098            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4099        }
 4100        cx.notify();
 4101    }
 4102
 4103    pub fn join_pane_into_next(
 4104        &mut self,
 4105        pane: Entity<Pane>,
 4106        window: &mut Window,
 4107        cx: &mut Context<Self>,
 4108    ) {
 4109        let next_pane = self
 4110            .find_pane_in_direction(SplitDirection::Right, cx)
 4111            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4112            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4113            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4114        let Some(next_pane) = next_pane else {
 4115            return;
 4116        };
 4117        move_all_items(&pane, &next_pane, window, cx);
 4118        cx.notify();
 4119    }
 4120
 4121    fn remove_pane(
 4122        &mut self,
 4123        pane: Entity<Pane>,
 4124        focus_on: Option<Entity<Pane>>,
 4125        window: &mut Window,
 4126        cx: &mut Context<Self>,
 4127    ) {
 4128        if self.center.remove(&pane).unwrap() {
 4129            self.force_remove_pane(&pane, &focus_on, window, cx);
 4130            self.unfollow_in_pane(&pane, window, cx);
 4131            self.last_leaders_by_pane.remove(&pane.downgrade());
 4132            for removed_item in pane.read(cx).items() {
 4133                self.panes_by_item.remove(&removed_item.item_id());
 4134            }
 4135
 4136            cx.notify();
 4137        } else {
 4138            self.active_item_path_changed(window, cx);
 4139        }
 4140        cx.emit(Event::PaneRemoved);
 4141    }
 4142
 4143    pub fn panes(&self) -> &[Entity<Pane>] {
 4144        &self.panes
 4145    }
 4146
 4147    pub fn active_pane(&self) -> &Entity<Pane> {
 4148        &self.active_pane
 4149    }
 4150
 4151    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4152        for dock in self.all_docks() {
 4153            if dock.focus_handle(cx).contains_focused(window, cx)
 4154                && let Some(pane) = dock
 4155                    .read(cx)
 4156                    .active_panel()
 4157                    .and_then(|panel| panel.pane(cx))
 4158            {
 4159                return pane;
 4160            }
 4161        }
 4162        self.active_pane().clone()
 4163    }
 4164
 4165    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4166        self.find_pane_in_direction(SplitDirection::Right, cx)
 4167            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4168            .unwrap_or_else(|| {
 4169                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4170            })
 4171    }
 4172
 4173    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4174        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4175        weak_pane.upgrade()
 4176    }
 4177
 4178    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4179        self.follower_states.retain(|leader_id, state| {
 4180            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4181                for item in state.items_by_leader_view_id.values() {
 4182                    item.view.set_leader_id(None, window, cx);
 4183                }
 4184                false
 4185            } else {
 4186                true
 4187            }
 4188        });
 4189        cx.notify();
 4190    }
 4191
 4192    pub fn start_following(
 4193        &mut self,
 4194        leader_id: impl Into<CollaboratorId>,
 4195        window: &mut Window,
 4196        cx: &mut Context<Self>,
 4197    ) -> Option<Task<Result<()>>> {
 4198        let leader_id = leader_id.into();
 4199        let pane = self.active_pane().clone();
 4200
 4201        self.last_leaders_by_pane
 4202            .insert(pane.downgrade(), leader_id);
 4203        self.unfollow(leader_id, window, cx);
 4204        self.unfollow_in_pane(&pane, window, cx);
 4205        self.follower_states.insert(
 4206            leader_id,
 4207            FollowerState {
 4208                center_pane: pane.clone(),
 4209                dock_pane: None,
 4210                active_view_id: None,
 4211                items_by_leader_view_id: Default::default(),
 4212            },
 4213        );
 4214        cx.notify();
 4215
 4216        match leader_id {
 4217            CollaboratorId::PeerId(leader_peer_id) => {
 4218                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4219                let project_id = self.project.read(cx).remote_id();
 4220                let request = self.app_state.client.request(proto::Follow {
 4221                    room_id,
 4222                    project_id,
 4223                    leader_id: Some(leader_peer_id),
 4224                });
 4225
 4226                Some(cx.spawn_in(window, async move |this, cx| {
 4227                    let response = request.await?;
 4228                    this.update(cx, |this, _| {
 4229                        let state = this
 4230                            .follower_states
 4231                            .get_mut(&leader_id)
 4232                            .context("following interrupted")?;
 4233                        state.active_view_id = response
 4234                            .active_view
 4235                            .as_ref()
 4236                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4237                        anyhow::Ok(())
 4238                    })??;
 4239                    if let Some(view) = response.active_view {
 4240                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4241                    }
 4242                    this.update_in(cx, |this, window, cx| {
 4243                        this.leader_updated(leader_id, window, cx)
 4244                    })?;
 4245                    Ok(())
 4246                }))
 4247            }
 4248            CollaboratorId::Agent => {
 4249                self.leader_updated(leader_id, window, cx)?;
 4250                Some(Task::ready(Ok(())))
 4251            }
 4252        }
 4253    }
 4254
 4255    pub fn follow_next_collaborator(
 4256        &mut self,
 4257        _: &FollowNextCollaborator,
 4258        window: &mut Window,
 4259        cx: &mut Context<Self>,
 4260    ) {
 4261        let collaborators = self.project.read(cx).collaborators();
 4262        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4263            let mut collaborators = collaborators.keys().copied();
 4264            for peer_id in collaborators.by_ref() {
 4265                if CollaboratorId::PeerId(peer_id) == leader_id {
 4266                    break;
 4267                }
 4268            }
 4269            collaborators.next().map(CollaboratorId::PeerId)
 4270        } else if let Some(last_leader_id) =
 4271            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4272        {
 4273            match last_leader_id {
 4274                CollaboratorId::PeerId(peer_id) => {
 4275                    if collaborators.contains_key(peer_id) {
 4276                        Some(*last_leader_id)
 4277                    } else {
 4278                        None
 4279                    }
 4280                }
 4281                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4282            }
 4283        } else {
 4284            None
 4285        };
 4286
 4287        let pane = self.active_pane.clone();
 4288        let Some(leader_id) = next_leader_id.or_else(|| {
 4289            Some(CollaboratorId::PeerId(
 4290                collaborators.keys().copied().next()?,
 4291            ))
 4292        }) else {
 4293            return;
 4294        };
 4295        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4296            return;
 4297        }
 4298        if let Some(task) = self.start_following(leader_id, window, cx) {
 4299            task.detach_and_log_err(cx)
 4300        }
 4301    }
 4302
 4303    pub fn follow(
 4304        &mut self,
 4305        leader_id: impl Into<CollaboratorId>,
 4306        window: &mut Window,
 4307        cx: &mut Context<Self>,
 4308    ) {
 4309        let leader_id = leader_id.into();
 4310
 4311        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4312            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4313                return;
 4314            };
 4315            let room = room.read(cx);
 4316            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4317                return;
 4318            };
 4319
 4320            let project = self.project.read(cx);
 4321
 4322            let other_project_id = match remote_participant.location {
 4323                call::ParticipantLocation::External => None,
 4324                call::ParticipantLocation::UnsharedProject => None,
 4325                call::ParticipantLocation::SharedProject { project_id } => {
 4326                    if Some(project_id) == project.remote_id() {
 4327                        None
 4328                    } else {
 4329                        Some(project_id)
 4330                    }
 4331                }
 4332            };
 4333
 4334            // if they are active in another project, follow there.
 4335            if let Some(project_id) = other_project_id {
 4336                let app_state = self.app_state.clone();
 4337                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4338                    .detach_and_log_err(cx);
 4339            }
 4340        }
 4341
 4342        // if you're already following, find the right pane and focus it.
 4343        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4344            window.focus(&follower_state.pane().focus_handle(cx));
 4345
 4346            return;
 4347        }
 4348
 4349        // Otherwise, follow.
 4350        if let Some(task) = self.start_following(leader_id, window, cx) {
 4351            task.detach_and_log_err(cx)
 4352        }
 4353    }
 4354
 4355    pub fn unfollow(
 4356        &mut self,
 4357        leader_id: impl Into<CollaboratorId>,
 4358        window: &mut Window,
 4359        cx: &mut Context<Self>,
 4360    ) -> Option<()> {
 4361        cx.notify();
 4362
 4363        let leader_id = leader_id.into();
 4364        let state = self.follower_states.remove(&leader_id)?;
 4365        for (_, item) in state.items_by_leader_view_id {
 4366            item.view.set_leader_id(None, window, cx);
 4367        }
 4368
 4369        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4370            let project_id = self.project.read(cx).remote_id();
 4371            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4372            self.app_state
 4373                .client
 4374                .send(proto::Unfollow {
 4375                    room_id,
 4376                    project_id,
 4377                    leader_id: Some(leader_peer_id),
 4378                })
 4379                .log_err();
 4380        }
 4381
 4382        Some(())
 4383    }
 4384
 4385    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4386        self.follower_states.contains_key(&id.into())
 4387    }
 4388
 4389    fn active_item_path_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4390        cx.emit(Event::ActiveItemChanged);
 4391        let active_entry = self.active_project_path(cx);
 4392        self.project
 4393            .update(cx, |project, cx| project.set_active_path(active_entry, cx));
 4394
 4395        self.update_window_title(window, cx);
 4396    }
 4397
 4398    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4399        let project = self.project().read(cx);
 4400        let mut title = String::new();
 4401
 4402        for (i, worktree) in project.worktrees(cx).enumerate() {
 4403            let name = {
 4404                let settings_location = SettingsLocation {
 4405                    worktree_id: worktree.read(cx).id(),
 4406                    path: Path::new(""),
 4407                };
 4408
 4409                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4410                match &settings.project_name {
 4411                    Some(name) => name.as_str(),
 4412                    None => worktree.read(cx).root_name(),
 4413                }
 4414            };
 4415            if i > 0 {
 4416                title.push_str(", ");
 4417            }
 4418            title.push_str(name);
 4419        }
 4420
 4421        if title.is_empty() {
 4422            title = "empty project".to_string();
 4423        }
 4424
 4425        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4426            let filename = path
 4427                .path
 4428                .file_name()
 4429                .map(|s| s.to_string_lossy())
 4430                .or_else(|| {
 4431                    Some(Cow::Borrowed(
 4432                        project
 4433                            .worktree_for_id(path.worktree_id, cx)?
 4434                            .read(cx)
 4435                            .root_name(),
 4436                    ))
 4437                });
 4438
 4439            if let Some(filename) = filename {
 4440                title.push_str("");
 4441                title.push_str(filename.as_ref());
 4442            }
 4443        }
 4444
 4445        if project.is_via_collab() {
 4446            title.push_str("");
 4447        } else if project.is_shared() {
 4448            title.push_str("");
 4449        }
 4450
 4451        if let Some(last_title) = self.last_window_title.as_ref()
 4452            && &title == last_title
 4453        {
 4454            return;
 4455        }
 4456        window.set_window_title(&title);
 4457        SystemWindowTabController::update_tab_title(
 4458            cx,
 4459            window.window_handle().window_id(),
 4460            SharedString::from(&title),
 4461        );
 4462        self.last_window_title = Some(title);
 4463    }
 4464
 4465    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4466        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4467        if is_edited != self.window_edited {
 4468            self.window_edited = is_edited;
 4469            window.set_window_edited(self.window_edited)
 4470        }
 4471    }
 4472
 4473    fn update_item_dirty_state(
 4474        &mut self,
 4475        item: &dyn ItemHandle,
 4476        window: &mut Window,
 4477        cx: &mut App,
 4478    ) {
 4479        let is_dirty = item.is_dirty(cx);
 4480        let item_id = item.item_id();
 4481        let was_dirty = self.dirty_items.contains_key(&item_id);
 4482        if is_dirty == was_dirty {
 4483            return;
 4484        }
 4485        if was_dirty {
 4486            self.dirty_items.remove(&item_id);
 4487            self.update_window_edited(window, cx);
 4488            return;
 4489        }
 4490        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4491            let s = item.on_release(
 4492                cx,
 4493                Box::new(move |cx| {
 4494                    window_handle
 4495                        .update(cx, |this, window, cx| {
 4496                            this.dirty_items.remove(&item_id);
 4497                            this.update_window_edited(window, cx)
 4498                        })
 4499                        .ok();
 4500                }),
 4501            );
 4502            self.dirty_items.insert(item_id, s);
 4503            self.update_window_edited(window, cx);
 4504        }
 4505    }
 4506
 4507    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4508        if self.notifications.is_empty() {
 4509            None
 4510        } else {
 4511            Some(
 4512                div()
 4513                    .absolute()
 4514                    .right_3()
 4515                    .bottom_3()
 4516                    .w_112()
 4517                    .h_full()
 4518                    .flex()
 4519                    .flex_col()
 4520                    .justify_end()
 4521                    .gap_2()
 4522                    .children(
 4523                        self.notifications
 4524                            .iter()
 4525                            .map(|(_, notification)| notification.clone().into_any()),
 4526                    ),
 4527            )
 4528        }
 4529    }
 4530
 4531    // RPC handlers
 4532
 4533    fn active_view_for_follower(
 4534        &self,
 4535        follower_project_id: Option<u64>,
 4536        window: &mut Window,
 4537        cx: &mut Context<Self>,
 4538    ) -> Option<proto::View> {
 4539        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4540        let item = item?;
 4541        let leader_id = self
 4542            .pane_for(&*item)
 4543            .and_then(|pane| self.leader_for_pane(&pane));
 4544        let leader_peer_id = match leader_id {
 4545            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4546            Some(CollaboratorId::Agent) | None => None,
 4547        };
 4548
 4549        let item_handle = item.to_followable_item_handle(cx)?;
 4550        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4551        let variant = item_handle.to_state_proto(window, cx)?;
 4552
 4553        if item_handle.is_project_item(window, cx)
 4554            && (follower_project_id.is_none()
 4555                || follower_project_id != self.project.read(cx).remote_id())
 4556        {
 4557            return None;
 4558        }
 4559
 4560        Some(proto::View {
 4561            id: id.to_proto(),
 4562            leader_id: leader_peer_id,
 4563            variant: Some(variant),
 4564            panel_id: panel_id.map(|id| id as i32),
 4565        })
 4566    }
 4567
 4568    fn handle_follow(
 4569        &mut self,
 4570        follower_project_id: Option<u64>,
 4571        window: &mut Window,
 4572        cx: &mut Context<Self>,
 4573    ) -> proto::FollowResponse {
 4574        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4575
 4576        cx.notify();
 4577        proto::FollowResponse {
 4578            // TODO: Remove after version 0.145.x stabilizes.
 4579            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4580            views: active_view.iter().cloned().collect(),
 4581            active_view,
 4582        }
 4583    }
 4584
 4585    fn handle_update_followers(
 4586        &mut self,
 4587        leader_id: PeerId,
 4588        message: proto::UpdateFollowers,
 4589        _window: &mut Window,
 4590        _cx: &mut Context<Self>,
 4591    ) {
 4592        self.leader_updates_tx
 4593            .unbounded_send((leader_id, message))
 4594            .ok();
 4595    }
 4596
 4597    async fn process_leader_update(
 4598        this: &WeakEntity<Self>,
 4599        leader_id: PeerId,
 4600        update: proto::UpdateFollowers,
 4601        cx: &mut AsyncWindowContext,
 4602    ) -> Result<()> {
 4603        match update.variant.context("invalid update")? {
 4604            proto::update_followers::Variant::CreateView(view) => {
 4605                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4606                let should_add_view = this.update(cx, |this, _| {
 4607                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4608                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4609                    } else {
 4610                        anyhow::Ok(false)
 4611                    }
 4612                })??;
 4613
 4614                if should_add_view {
 4615                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4616                }
 4617            }
 4618            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4619                let should_add_view = this.update(cx, |this, _| {
 4620                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4621                        state.active_view_id = update_active_view
 4622                            .view
 4623                            .as_ref()
 4624                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4625
 4626                        if state.active_view_id.is_some_and(|view_id| {
 4627                            !state.items_by_leader_view_id.contains_key(&view_id)
 4628                        }) {
 4629                            anyhow::Ok(true)
 4630                        } else {
 4631                            anyhow::Ok(false)
 4632                        }
 4633                    } else {
 4634                        anyhow::Ok(false)
 4635                    }
 4636                })??;
 4637
 4638                if should_add_view && let Some(view) = update_active_view.view {
 4639                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4640                }
 4641            }
 4642            proto::update_followers::Variant::UpdateView(update_view) => {
 4643                let variant = update_view.variant.context("missing update view variant")?;
 4644                let id = update_view.id.context("missing update view id")?;
 4645                let mut tasks = Vec::new();
 4646                this.update_in(cx, |this, window, cx| {
 4647                    let project = this.project.clone();
 4648                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4649                        let view_id = ViewId::from_proto(id.clone())?;
 4650                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4651                            tasks.push(item.view.apply_update_proto(
 4652                                &project,
 4653                                variant.clone(),
 4654                                window,
 4655                                cx,
 4656                            ));
 4657                        }
 4658                    }
 4659                    anyhow::Ok(())
 4660                })??;
 4661                try_join_all(tasks).await.log_err();
 4662            }
 4663        }
 4664        this.update_in(cx, |this, window, cx| {
 4665            this.leader_updated(leader_id, window, cx)
 4666        })?;
 4667        Ok(())
 4668    }
 4669
 4670    async fn add_view_from_leader(
 4671        this: WeakEntity<Self>,
 4672        leader_id: PeerId,
 4673        view: &proto::View,
 4674        cx: &mut AsyncWindowContext,
 4675    ) -> Result<()> {
 4676        let this = this.upgrade().context("workspace dropped")?;
 4677
 4678        let Some(id) = view.id.clone() else {
 4679            anyhow::bail!("no id for view");
 4680        };
 4681        let id = ViewId::from_proto(id)?;
 4682        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 4683
 4684        let pane = this.update(cx, |this, _cx| {
 4685            let state = this
 4686                .follower_states
 4687                .get(&leader_id.into())
 4688                .context("stopped following")?;
 4689            anyhow::Ok(state.pane().clone())
 4690        })??;
 4691        let existing_item = pane.update_in(cx, |pane, window, cx| {
 4692            let client = this.read(cx).client().clone();
 4693            pane.items().find_map(|item| {
 4694                let item = item.to_followable_item_handle(cx)?;
 4695                if item.remote_id(&client, window, cx) == Some(id) {
 4696                    Some(item)
 4697                } else {
 4698                    None
 4699                }
 4700            })
 4701        })?;
 4702        let item = if let Some(existing_item) = existing_item {
 4703            existing_item
 4704        } else {
 4705            let variant = view.variant.clone();
 4706            anyhow::ensure!(variant.is_some(), "missing view variant");
 4707
 4708            let task = cx.update(|window, cx| {
 4709                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 4710            })?;
 4711
 4712            let Some(task) = task else {
 4713                anyhow::bail!(
 4714                    "failed to construct view from leader (maybe from a different version of zed?)"
 4715                );
 4716            };
 4717
 4718            let mut new_item = task.await?;
 4719            pane.update_in(cx, |pane, window, cx| {
 4720                let mut item_to_remove = None;
 4721                for (ix, item) in pane.items().enumerate() {
 4722                    if let Some(item) = item.to_followable_item_handle(cx) {
 4723                        match new_item.dedup(item.as_ref(), window, cx) {
 4724                            Some(item::Dedup::KeepExisting) => {
 4725                                new_item =
 4726                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 4727                                break;
 4728                            }
 4729                            Some(item::Dedup::ReplaceExisting) => {
 4730                                item_to_remove = Some((ix, item.item_id()));
 4731                                break;
 4732                            }
 4733                            None => {}
 4734                        }
 4735                    }
 4736                }
 4737
 4738                if let Some((ix, id)) = item_to_remove {
 4739                    pane.remove_item(id, false, false, window, cx);
 4740                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 4741                }
 4742            })?;
 4743
 4744            new_item
 4745        };
 4746
 4747        this.update_in(cx, |this, window, cx| {
 4748            let state = this.follower_states.get_mut(&leader_id.into())?;
 4749            item.set_leader_id(Some(leader_id.into()), window, cx);
 4750            state.items_by_leader_view_id.insert(
 4751                id,
 4752                FollowerView {
 4753                    view: item,
 4754                    location: panel_id,
 4755                },
 4756            );
 4757
 4758            Some(())
 4759        })?;
 4760
 4761        Ok(())
 4762    }
 4763
 4764    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4765        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 4766            return;
 4767        };
 4768
 4769        if let Some(agent_location) = self.project.read(cx).agent_location() {
 4770            let buffer_entity_id = agent_location.buffer.entity_id();
 4771            let view_id = ViewId {
 4772                creator: CollaboratorId::Agent,
 4773                id: buffer_entity_id.as_u64(),
 4774            };
 4775            follower_state.active_view_id = Some(view_id);
 4776
 4777            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 4778                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 4779                hash_map::Entry::Vacant(entry) => {
 4780                    let existing_view =
 4781                        follower_state
 4782                            .center_pane
 4783                            .read(cx)
 4784                            .items()
 4785                            .find_map(|item| {
 4786                                let item = item.to_followable_item_handle(cx)?;
 4787                                if item.is_singleton(cx)
 4788                                    && item.project_item_model_ids(cx).as_slice()
 4789                                        == [buffer_entity_id]
 4790                                {
 4791                                    Some(item)
 4792                                } else {
 4793                                    None
 4794                                }
 4795                            });
 4796                    let view = existing_view.or_else(|| {
 4797                        agent_location.buffer.upgrade().and_then(|buffer| {
 4798                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 4799                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 4800                            })?
 4801                            .to_followable_item_handle(cx)
 4802                        })
 4803                    });
 4804
 4805                    view.map(|view| {
 4806                        entry.insert(FollowerView {
 4807                            view,
 4808                            location: None,
 4809                        })
 4810                    })
 4811                }
 4812            };
 4813
 4814            if let Some(item) = item {
 4815                item.view
 4816                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 4817                item.view
 4818                    .update_agent_location(agent_location.position, window, cx);
 4819            }
 4820        } else {
 4821            follower_state.active_view_id = None;
 4822        }
 4823
 4824        self.leader_updated(CollaboratorId::Agent, window, cx);
 4825    }
 4826
 4827    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 4828        let mut is_project_item = true;
 4829        let mut update = proto::UpdateActiveView::default();
 4830        if window.is_window_active() {
 4831            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 4832
 4833            if let Some(item) = active_item
 4834                && item.item_focus_handle(cx).contains_focused(window, cx)
 4835            {
 4836                let leader_id = self
 4837                    .pane_for(&*item)
 4838                    .and_then(|pane| self.leader_for_pane(&pane));
 4839                let leader_peer_id = match leader_id {
 4840                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4841                    Some(CollaboratorId::Agent) | None => None,
 4842                };
 4843
 4844                if let Some(item) = item.to_followable_item_handle(cx) {
 4845                    let id = item
 4846                        .remote_id(&self.app_state.client, window, cx)
 4847                        .map(|id| id.to_proto());
 4848
 4849                    if let Some(id) = id
 4850                        && let Some(variant) = item.to_state_proto(window, cx)
 4851                    {
 4852                        let view = Some(proto::View {
 4853                            id: id.clone(),
 4854                            leader_id: leader_peer_id,
 4855                            variant: Some(variant),
 4856                            panel_id: panel_id.map(|id| id as i32),
 4857                        });
 4858
 4859                        is_project_item = item.is_project_item(window, cx);
 4860                        update = proto::UpdateActiveView {
 4861                            view,
 4862                            // TODO: Remove after version 0.145.x stabilizes.
 4863                            id,
 4864                            leader_id: leader_peer_id,
 4865                        };
 4866                    };
 4867                }
 4868            }
 4869        }
 4870
 4871        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 4872        if active_view_id != self.last_active_view_id.as_ref() {
 4873            self.last_active_view_id = active_view_id.cloned();
 4874            self.update_followers(
 4875                is_project_item,
 4876                proto::update_followers::Variant::UpdateActiveView(update),
 4877                window,
 4878                cx,
 4879            );
 4880        }
 4881    }
 4882
 4883    fn active_item_for_followers(
 4884        &self,
 4885        window: &mut Window,
 4886        cx: &mut App,
 4887    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 4888        let mut active_item = None;
 4889        let mut panel_id = None;
 4890        for dock in self.all_docks() {
 4891            if dock.focus_handle(cx).contains_focused(window, cx)
 4892                && let Some(panel) = dock.read(cx).active_panel()
 4893                && let Some(pane) = panel.pane(cx)
 4894                && let Some(item) = pane.read(cx).active_item()
 4895            {
 4896                active_item = Some(item);
 4897                panel_id = panel.remote_id();
 4898                break;
 4899            }
 4900        }
 4901
 4902        if active_item.is_none() {
 4903            active_item = self.active_pane().read(cx).active_item();
 4904        }
 4905        (active_item, panel_id)
 4906    }
 4907
 4908    fn update_followers(
 4909        &self,
 4910        project_only: bool,
 4911        update: proto::update_followers::Variant,
 4912        _: &mut Window,
 4913        cx: &mut App,
 4914    ) -> Option<()> {
 4915        // If this update only applies to for followers in the current project,
 4916        // then skip it unless this project is shared. If it applies to all
 4917        // followers, regardless of project, then set `project_id` to none,
 4918        // indicating that it goes to all followers.
 4919        let project_id = if project_only {
 4920            Some(self.project.read(cx).remote_id()?)
 4921        } else {
 4922            None
 4923        };
 4924        self.app_state().workspace_store.update(cx, |store, cx| {
 4925            store.update_followers(project_id, update, cx)
 4926        })
 4927    }
 4928
 4929    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 4930        self.follower_states.iter().find_map(|(leader_id, state)| {
 4931            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 4932                Some(*leader_id)
 4933            } else {
 4934                None
 4935            }
 4936        })
 4937    }
 4938
 4939    fn leader_updated(
 4940        &mut self,
 4941        leader_id: impl Into<CollaboratorId>,
 4942        window: &mut Window,
 4943        cx: &mut Context<Self>,
 4944    ) -> Option<Box<dyn ItemHandle>> {
 4945        cx.notify();
 4946
 4947        let leader_id = leader_id.into();
 4948        let (panel_id, item) = match leader_id {
 4949            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 4950            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 4951        };
 4952
 4953        let state = self.follower_states.get(&leader_id)?;
 4954        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 4955        let pane;
 4956        if let Some(panel_id) = panel_id {
 4957            pane = self
 4958                .activate_panel_for_proto_id(panel_id, window, cx)?
 4959                .pane(cx)?;
 4960            let state = self.follower_states.get_mut(&leader_id)?;
 4961            state.dock_pane = Some(pane.clone());
 4962        } else {
 4963            pane = state.center_pane.clone();
 4964            let state = self.follower_states.get_mut(&leader_id)?;
 4965            if let Some(dock_pane) = state.dock_pane.take() {
 4966                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 4967            }
 4968        }
 4969
 4970        pane.update(cx, |pane, cx| {
 4971            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 4972            if let Some(index) = pane.index_for_item(item.as_ref()) {
 4973                pane.activate_item(index, false, false, window, cx);
 4974            } else {
 4975                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 4976            }
 4977
 4978            if focus_active_item {
 4979                pane.focus_active_item(window, cx)
 4980            }
 4981        });
 4982
 4983        Some(item)
 4984    }
 4985
 4986    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 4987        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 4988        let active_view_id = state.active_view_id?;
 4989        Some(
 4990            state
 4991                .items_by_leader_view_id
 4992                .get(&active_view_id)?
 4993                .view
 4994                .boxed_clone(),
 4995        )
 4996    }
 4997
 4998    fn active_item_for_peer(
 4999        &self,
 5000        peer_id: PeerId,
 5001        window: &mut Window,
 5002        cx: &mut Context<Self>,
 5003    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5004        let call = self.active_call()?;
 5005        let room = call.read(cx).room()?.read(cx);
 5006        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5007        let leader_in_this_app;
 5008        let leader_in_this_project;
 5009        match participant.location {
 5010            call::ParticipantLocation::SharedProject { project_id } => {
 5011                leader_in_this_app = true;
 5012                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5013            }
 5014            call::ParticipantLocation::UnsharedProject => {
 5015                leader_in_this_app = true;
 5016                leader_in_this_project = false;
 5017            }
 5018            call::ParticipantLocation::External => {
 5019                leader_in_this_app = false;
 5020                leader_in_this_project = false;
 5021            }
 5022        };
 5023        let state = self.follower_states.get(&peer_id.into())?;
 5024        let mut item_to_activate = None;
 5025        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5026            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5027                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5028            {
 5029                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5030            }
 5031        } else if let Some(shared_screen) =
 5032            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5033        {
 5034            item_to_activate = Some((None, Box::new(shared_screen)));
 5035        }
 5036        item_to_activate
 5037    }
 5038
 5039    fn shared_screen_for_peer(
 5040        &self,
 5041        peer_id: PeerId,
 5042        pane: &Entity<Pane>,
 5043        window: &mut Window,
 5044        cx: &mut App,
 5045    ) -> Option<Entity<SharedScreen>> {
 5046        let call = self.active_call()?;
 5047        let room = call.read(cx).room()?.clone();
 5048        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5049        let track = participant.video_tracks.values().next()?.clone();
 5050        let user = participant.user.clone();
 5051
 5052        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5053            if item.read(cx).peer_id == peer_id {
 5054                return Some(item);
 5055            }
 5056        }
 5057
 5058        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5059    }
 5060
 5061    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5062        if window.is_window_active() {
 5063            self.update_active_view_for_followers(window, cx);
 5064
 5065            if let Some(database_id) = self.database_id {
 5066                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5067                    .detach();
 5068            }
 5069        } else {
 5070            for pane in &self.panes {
 5071                pane.update(cx, |pane, cx| {
 5072                    if let Some(item) = pane.active_item() {
 5073                        item.workspace_deactivated(window, cx);
 5074                    }
 5075                    for item in pane.items() {
 5076                        if matches!(
 5077                            item.workspace_settings(cx).autosave,
 5078                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5079                        ) {
 5080                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5081                                .detach_and_log_err(cx);
 5082                        }
 5083                    }
 5084                });
 5085            }
 5086        }
 5087    }
 5088
 5089    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5090        self.active_call.as_ref().map(|(call, _)| call)
 5091    }
 5092
 5093    fn on_active_call_event(
 5094        &mut self,
 5095        _: &Entity<ActiveCall>,
 5096        event: &call::room::Event,
 5097        window: &mut Window,
 5098        cx: &mut Context<Self>,
 5099    ) {
 5100        match event {
 5101            call::room::Event::ParticipantLocationChanged { participant_id }
 5102            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5103                self.leader_updated(participant_id, window, cx);
 5104            }
 5105            _ => {}
 5106        }
 5107    }
 5108
 5109    pub fn database_id(&self) -> Option<WorkspaceId> {
 5110        self.database_id
 5111    }
 5112
 5113    pub fn session_id(&self) -> Option<String> {
 5114        self.session_id.clone()
 5115    }
 5116
 5117    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5118        let project = self.project().read(cx);
 5119        project
 5120            .visible_worktrees(cx)
 5121            .map(|worktree| worktree.read(cx).abs_path())
 5122            .collect::<Vec<_>>()
 5123    }
 5124
 5125    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5126        match member {
 5127            Member::Axis(PaneAxis { members, .. }) => {
 5128                for child in members.iter() {
 5129                    self.remove_panes(child.clone(), window, cx)
 5130                }
 5131            }
 5132            Member::Pane(pane) => {
 5133                self.force_remove_pane(&pane, &None, window, cx);
 5134            }
 5135        }
 5136    }
 5137
 5138    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5139        self.session_id.take();
 5140        self.serialize_workspace_internal(window, cx)
 5141    }
 5142
 5143    fn force_remove_pane(
 5144        &mut self,
 5145        pane: &Entity<Pane>,
 5146        focus_on: &Option<Entity<Pane>>,
 5147        window: &mut Window,
 5148        cx: &mut Context<Workspace>,
 5149    ) {
 5150        self.panes.retain(|p| p != pane);
 5151        if let Some(focus_on) = focus_on {
 5152            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5153        } else if self.active_pane() == pane {
 5154            self.panes
 5155                .last()
 5156                .unwrap()
 5157                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5158        }
 5159        if self.last_active_center_pane == Some(pane.downgrade()) {
 5160            self.last_active_center_pane = None;
 5161        }
 5162        cx.notify();
 5163    }
 5164
 5165    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5166        if self._schedule_serialize_workspace.is_none() {
 5167            self._schedule_serialize_workspace =
 5168                Some(cx.spawn_in(window, async move |this, cx| {
 5169                    cx.background_executor()
 5170                        .timer(SERIALIZATION_THROTTLE_TIME)
 5171                        .await;
 5172                    this.update_in(cx, |this, window, cx| {
 5173                        this.serialize_workspace_internal(window, cx).detach();
 5174                        this._schedule_serialize_workspace.take();
 5175                    })
 5176                    .log_err();
 5177                }));
 5178        }
 5179    }
 5180
 5181    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5182        let Some(database_id) = self.database_id() else {
 5183            return Task::ready(());
 5184        };
 5185
 5186        fn serialize_pane_handle(
 5187            pane_handle: &Entity<Pane>,
 5188            window: &mut Window,
 5189            cx: &mut App,
 5190        ) -> SerializedPane {
 5191            let (items, active, pinned_count) = {
 5192                let pane = pane_handle.read(cx);
 5193                let active_item_id = pane.active_item().map(|item| item.item_id());
 5194                (
 5195                    pane.items()
 5196                        .filter_map(|handle| {
 5197                            let handle = handle.to_serializable_item_handle(cx)?;
 5198
 5199                            Some(SerializedItem {
 5200                                kind: Arc::from(handle.serialized_item_kind()),
 5201                                item_id: handle.item_id().as_u64(),
 5202                                active: Some(handle.item_id()) == active_item_id,
 5203                                preview: pane.is_active_preview_item(handle.item_id()),
 5204                            })
 5205                        })
 5206                        .collect::<Vec<_>>(),
 5207                    pane.has_focus(window, cx),
 5208                    pane.pinned_count(),
 5209                )
 5210            };
 5211
 5212            SerializedPane::new(items, active, pinned_count)
 5213        }
 5214
 5215        fn build_serialized_pane_group(
 5216            pane_group: &Member,
 5217            window: &mut Window,
 5218            cx: &mut App,
 5219        ) -> SerializedPaneGroup {
 5220            match pane_group {
 5221                Member::Axis(PaneAxis {
 5222                    axis,
 5223                    members,
 5224                    flexes,
 5225                    bounding_boxes: _,
 5226                }) => SerializedPaneGroup::Group {
 5227                    axis: SerializedAxis(*axis),
 5228                    children: members
 5229                        .iter()
 5230                        .map(|member| build_serialized_pane_group(member, window, cx))
 5231                        .collect::<Vec<_>>(),
 5232                    flexes: Some(flexes.lock().clone()),
 5233                },
 5234                Member::Pane(pane_handle) => {
 5235                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5236                }
 5237            }
 5238        }
 5239
 5240        fn build_serialized_docks(
 5241            this: &Workspace,
 5242            window: &mut Window,
 5243            cx: &mut App,
 5244        ) -> DockStructure {
 5245            let left_dock = this.left_dock.read(cx);
 5246            let left_visible = left_dock.is_open();
 5247            let left_active_panel = left_dock
 5248                .active_panel()
 5249                .map(|panel| panel.persistent_name().to_string());
 5250            let left_dock_zoom = left_dock
 5251                .active_panel()
 5252                .map(|panel| panel.is_zoomed(window, cx))
 5253                .unwrap_or(false);
 5254
 5255            let right_dock = this.right_dock.read(cx);
 5256            let right_visible = right_dock.is_open();
 5257            let right_active_panel = right_dock
 5258                .active_panel()
 5259                .map(|panel| panel.persistent_name().to_string());
 5260            let right_dock_zoom = right_dock
 5261                .active_panel()
 5262                .map(|panel| panel.is_zoomed(window, cx))
 5263                .unwrap_or(false);
 5264
 5265            let bottom_dock = this.bottom_dock.read(cx);
 5266            let bottom_visible = bottom_dock.is_open();
 5267            let bottom_active_panel = bottom_dock
 5268                .active_panel()
 5269                .map(|panel| panel.persistent_name().to_string());
 5270            let bottom_dock_zoom = bottom_dock
 5271                .active_panel()
 5272                .map(|panel| panel.is_zoomed(window, cx))
 5273                .unwrap_or(false);
 5274
 5275            DockStructure {
 5276                left: DockData {
 5277                    visible: left_visible,
 5278                    active_panel: left_active_panel,
 5279                    zoom: left_dock_zoom,
 5280                },
 5281                right: DockData {
 5282                    visible: right_visible,
 5283                    active_panel: right_active_panel,
 5284                    zoom: right_dock_zoom,
 5285                },
 5286                bottom: DockData {
 5287                    visible: bottom_visible,
 5288                    active_panel: bottom_active_panel,
 5289                    zoom: bottom_dock_zoom,
 5290                },
 5291            }
 5292        }
 5293
 5294        match self.serialize_workspace_location(cx) {
 5295            WorkspaceLocation::Location(location, paths) => {
 5296                let breakpoints = self.project.update(cx, |project, cx| {
 5297                    project
 5298                        .breakpoint_store()
 5299                        .read(cx)
 5300                        .all_source_breakpoints(cx)
 5301                });
 5302                let user_toolchains = self
 5303                    .project
 5304                    .read(cx)
 5305                    .user_toolchains(cx)
 5306                    .unwrap_or_default();
 5307
 5308                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5309                let docks = build_serialized_docks(self, window, cx);
 5310                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5311
 5312                let serialized_workspace = SerializedWorkspace {
 5313                    id: database_id,
 5314                    location,
 5315                    paths,
 5316                    center_group,
 5317                    window_bounds,
 5318                    display: Default::default(),
 5319                    docks,
 5320                    centered_layout: self.centered_layout,
 5321                    session_id: self.session_id.clone(),
 5322                    breakpoints,
 5323                    window_id: Some(window.window_handle().window_id().as_u64()),
 5324                    user_toolchains,
 5325                };
 5326
 5327                window.spawn(cx, async move |_| {
 5328                    persistence::DB.save_workspace(serialized_workspace).await;
 5329                })
 5330            }
 5331            WorkspaceLocation::DetachFromSession => window.spawn(cx, async move |_| {
 5332                persistence::DB
 5333                    .set_session_id(database_id, None)
 5334                    .await
 5335                    .log_err();
 5336            }),
 5337            WorkspaceLocation::None => Task::ready(()),
 5338        }
 5339    }
 5340
 5341    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5342        let paths = PathList::new(&self.root_paths(cx));
 5343        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5344            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5345        } else if self.project.read(cx).is_local() {
 5346            if !paths.is_empty() {
 5347                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5348            } else {
 5349                WorkspaceLocation::DetachFromSession
 5350            }
 5351        } else {
 5352            WorkspaceLocation::None
 5353        }
 5354    }
 5355
 5356    fn update_history(&self, cx: &mut App) {
 5357        let Some(id) = self.database_id() else {
 5358            return;
 5359        };
 5360        if !self.project.read(cx).is_local() {
 5361            return;
 5362        }
 5363        if let Some(manager) = HistoryManager::global(cx) {
 5364            let paths = PathList::new(&self.root_paths(cx));
 5365            manager.update(cx, |this, cx| {
 5366                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5367            });
 5368        }
 5369    }
 5370
 5371    async fn serialize_items(
 5372        this: &WeakEntity<Self>,
 5373        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5374        cx: &mut AsyncWindowContext,
 5375    ) -> Result<()> {
 5376        const CHUNK_SIZE: usize = 200;
 5377
 5378        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5379
 5380        while let Some(items_received) = serializable_items.next().await {
 5381            let unique_items =
 5382                items_received
 5383                    .into_iter()
 5384                    .fold(HashMap::default(), |mut acc, item| {
 5385                        acc.entry(item.item_id()).or_insert(item);
 5386                        acc
 5387                    });
 5388
 5389            // We use into_iter() here so that the references to the items are moved into
 5390            // the tasks and not kept alive while we're sleeping.
 5391            for (_, item) in unique_items.into_iter() {
 5392                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5393                    item.serialize(workspace, false, window, cx)
 5394                }) {
 5395                    cx.background_spawn(async move { task.await.log_err() })
 5396                        .detach();
 5397                }
 5398            }
 5399
 5400            cx.background_executor()
 5401                .timer(SERIALIZATION_THROTTLE_TIME)
 5402                .await;
 5403        }
 5404
 5405        Ok(())
 5406    }
 5407
 5408    pub(crate) fn enqueue_item_serialization(
 5409        &mut self,
 5410        item: Box<dyn SerializableItemHandle>,
 5411    ) -> Result<()> {
 5412        self.serializable_items_tx
 5413            .unbounded_send(item)
 5414            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5415    }
 5416
 5417    pub(crate) fn load_workspace(
 5418        serialized_workspace: SerializedWorkspace,
 5419        paths_to_open: Vec<Option<ProjectPath>>,
 5420        window: &mut Window,
 5421        cx: &mut Context<Workspace>,
 5422    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5423        cx.spawn_in(window, async move |workspace, cx| {
 5424            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5425
 5426            let mut center_group = None;
 5427            let mut center_items = None;
 5428
 5429            // Traverse the splits tree and add to things
 5430            if let Some((group, active_pane, items)) = serialized_workspace
 5431                .center_group
 5432                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5433                .await
 5434            {
 5435                center_items = Some(items);
 5436                center_group = Some((group, active_pane))
 5437            }
 5438
 5439            let mut items_by_project_path = HashMap::default();
 5440            let mut item_ids_by_kind = HashMap::default();
 5441            let mut all_deserialized_items = Vec::default();
 5442            cx.update(|_, cx| {
 5443                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5444                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5445                        item_ids_by_kind
 5446                            .entry(serializable_item_handle.serialized_item_kind())
 5447                            .or_insert(Vec::new())
 5448                            .push(item.item_id().as_u64() as ItemId);
 5449                    }
 5450
 5451                    if let Some(project_path) = item.project_path(cx) {
 5452                        items_by_project_path.insert(project_path, item.clone());
 5453                    }
 5454                    all_deserialized_items.push(item);
 5455                }
 5456            })?;
 5457
 5458            let opened_items = paths_to_open
 5459                .into_iter()
 5460                .map(|path_to_open| {
 5461                    path_to_open
 5462                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5463                })
 5464                .collect::<Vec<_>>();
 5465
 5466            // Remove old panes from workspace panes list
 5467            workspace.update_in(cx, |workspace, window, cx| {
 5468                if let Some((center_group, active_pane)) = center_group {
 5469                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5470
 5471                    // Swap workspace center group
 5472                    workspace.center = PaneGroup::with_root(center_group);
 5473                    if let Some(active_pane) = active_pane {
 5474                        workspace.set_active_pane(&active_pane, window, cx);
 5475                        cx.focus_self(window);
 5476                    } else {
 5477                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5478                    }
 5479                }
 5480
 5481                let docks = serialized_workspace.docks;
 5482
 5483                for (dock, serialized_dock) in [
 5484                    (&mut workspace.right_dock, docks.right),
 5485                    (&mut workspace.left_dock, docks.left),
 5486                    (&mut workspace.bottom_dock, docks.bottom),
 5487                ]
 5488                .iter_mut()
 5489                {
 5490                    dock.update(cx, |dock, cx| {
 5491                        dock.serialized_dock = Some(serialized_dock.clone());
 5492                        dock.restore_state(window, cx);
 5493                    });
 5494                }
 5495
 5496                cx.notify();
 5497            })?;
 5498
 5499            let _ = project
 5500                .update(cx, |project, cx| {
 5501                    project
 5502                        .breakpoint_store()
 5503                        .update(cx, |breakpoint_store, cx| {
 5504                            breakpoint_store
 5505                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5506                        })
 5507                })?
 5508                .await;
 5509
 5510            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5511            // after loading the items, we might have different items and in order to avoid
 5512            // the database filling up, we delete items that haven't been loaded now.
 5513            //
 5514            // The items that have been loaded, have been saved after they've been added to the workspace.
 5515            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5516                item_ids_by_kind
 5517                    .into_iter()
 5518                    .map(|(item_kind, loaded_items)| {
 5519                        SerializableItemRegistry::cleanup(
 5520                            item_kind,
 5521                            serialized_workspace.id,
 5522                            loaded_items,
 5523                            window,
 5524                            cx,
 5525                        )
 5526                        .log_err()
 5527                    })
 5528                    .collect::<Vec<_>>()
 5529            })?;
 5530
 5531            futures::future::join_all(clean_up_tasks).await;
 5532
 5533            workspace
 5534                .update_in(cx, |workspace, window, cx| {
 5535                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5536                    workspace.serialize_workspace_internal(window, cx).detach();
 5537
 5538                    // Ensure that we mark the window as edited if we did load dirty items
 5539                    workspace.update_window_edited(window, cx);
 5540                })
 5541                .ok();
 5542
 5543            Ok(opened_items)
 5544        })
 5545    }
 5546
 5547    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5548        self.add_workspace_actions_listeners(div, window, cx)
 5549            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5550            .on_action(cx.listener(Self::close_all_items_and_panes))
 5551            .on_action(cx.listener(Self::save_all))
 5552            .on_action(cx.listener(Self::send_keystrokes))
 5553            .on_action(cx.listener(Self::add_folder_to_project))
 5554            .on_action(cx.listener(Self::follow_next_collaborator))
 5555            .on_action(cx.listener(Self::close_window))
 5556            .on_action(cx.listener(Self::activate_pane_at_index))
 5557            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5558            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5559            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5560            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5561                let pane = workspace.active_pane().clone();
 5562                workspace.unfollow_in_pane(&pane, window, cx);
 5563            }))
 5564            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5565                workspace
 5566                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5567                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5568            }))
 5569            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5570                workspace
 5571                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5572                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5573            }))
 5574            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5575                workspace
 5576                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5577                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5578            }))
 5579            .on_action(
 5580                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5581                    workspace.activate_previous_pane(window, cx)
 5582                }),
 5583            )
 5584            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5585                workspace.activate_next_pane(window, cx)
 5586            }))
 5587            .on_action(
 5588                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5589                    workspace.activate_next_window(cx)
 5590                }),
 5591            )
 5592            .on_action(
 5593                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5594                    workspace.activate_previous_window(cx)
 5595                }),
 5596            )
 5597            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5598                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5599            }))
 5600            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5601                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5602            }))
 5603            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5604                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5605            }))
 5606            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5607                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5608            }))
 5609            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5610                workspace.activate_next_pane(window, cx)
 5611            }))
 5612            .on_action(cx.listener(
 5613                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5614                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5615                },
 5616            ))
 5617            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5618                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5619            }))
 5620            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5621                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5622            }))
 5623            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5624                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5625            }))
 5626            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5627                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5628            }))
 5629            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 5630                this.toggle_dock(DockPosition::Left, window, cx);
 5631            }))
 5632            .on_action(cx.listener(
 5633                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 5634                    workspace.toggle_dock(DockPosition::Right, window, cx);
 5635                },
 5636            ))
 5637            .on_action(cx.listener(
 5638                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 5639                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 5640                },
 5641            ))
 5642            .on_action(cx.listener(
 5643                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 5644                    if !workspace.close_active_dock(window, cx) {
 5645                        cx.propagate();
 5646                    }
 5647                },
 5648            ))
 5649            .on_action(
 5650                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 5651                    workspace.close_all_docks(window, cx);
 5652                }),
 5653            )
 5654            .on_action(cx.listener(
 5655                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 5656                    workspace.clear_all_notifications(cx);
 5657                },
 5658            ))
 5659            .on_action(cx.listener(
 5660                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 5661                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 5662                        workspace.suppress_notification(&notification_id, cx);
 5663                    }
 5664                },
 5665            ))
 5666            .on_action(cx.listener(
 5667                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 5668                    workspace.reopen_closed_item(window, cx).detach();
 5669                },
 5670            ))
 5671            .on_action(cx.listener(
 5672                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 5673                    for dock in workspace.all_docks() {
 5674                        if dock.focus_handle(cx).contains_focused(window, cx) {
 5675                            let Some(panel) = dock.read(cx).active_panel() else {
 5676                                return;
 5677                            };
 5678
 5679                            // Set to `None`, then the size will fall back to the default.
 5680                            panel.clone().set_size(None, window, cx);
 5681
 5682                            return;
 5683                        }
 5684                    }
 5685                },
 5686            ))
 5687            .on_action(cx.listener(
 5688                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 5689                    for dock in workspace.all_docks() {
 5690                        if let Some(panel) = dock.read(cx).visible_panel() {
 5691                            // Set to `None`, then the size will fall back to the default.
 5692                            panel.clone().set_size(None, window, cx);
 5693                        }
 5694                    }
 5695                },
 5696            ))
 5697            .on_action(cx.listener(
 5698                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 5699                    adjust_active_dock_size_by_px(
 5700                        px_with_ui_font_fallback(act.px, cx),
 5701                        workspace,
 5702                        window,
 5703                        cx,
 5704                    );
 5705                },
 5706            ))
 5707            .on_action(cx.listener(
 5708                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 5709                    adjust_active_dock_size_by_px(
 5710                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5711                        workspace,
 5712                        window,
 5713                        cx,
 5714                    );
 5715                },
 5716            ))
 5717            .on_action(cx.listener(
 5718                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 5719                    adjust_open_docks_size_by_px(
 5720                        px_with_ui_font_fallback(act.px, cx),
 5721                        workspace,
 5722                        window,
 5723                        cx,
 5724                    );
 5725                },
 5726            ))
 5727            .on_action(cx.listener(
 5728                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 5729                    adjust_open_docks_size_by_px(
 5730                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5731                        workspace,
 5732                        window,
 5733                        cx,
 5734                    );
 5735                },
 5736            ))
 5737            .on_action(cx.listener(Workspace::toggle_centered_layout))
 5738            .on_action(cx.listener(Workspace::cancel))
 5739    }
 5740
 5741    #[cfg(any(test, feature = "test-support"))]
 5742    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 5743        use node_runtime::NodeRuntime;
 5744        use session::Session;
 5745
 5746        let client = project.read(cx).client();
 5747        let user_store = project.read(cx).user_store();
 5748        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 5749        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 5750        window.activate_window();
 5751        let app_state = Arc::new(AppState {
 5752            languages: project.read(cx).languages().clone(),
 5753            workspace_store,
 5754            client,
 5755            user_store,
 5756            fs: project.read(cx).fs().clone(),
 5757            build_window_options: |_, _| Default::default(),
 5758            node_runtime: NodeRuntime::unavailable(),
 5759            session,
 5760        });
 5761        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 5762        workspace
 5763            .active_pane
 5764            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5765        workspace
 5766    }
 5767
 5768    pub fn register_action<A: Action>(
 5769        &mut self,
 5770        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 5771    ) -> &mut Self {
 5772        let callback = Arc::new(callback);
 5773
 5774        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 5775            let callback = callback.clone();
 5776            div.on_action(cx.listener(move |workspace, event, window, cx| {
 5777                (callback)(workspace, event, window, cx)
 5778            }))
 5779        }));
 5780        self
 5781    }
 5782    pub fn register_action_renderer(
 5783        &mut self,
 5784        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 5785    ) -> &mut Self {
 5786        self.workspace_actions.push(Box::new(callback));
 5787        self
 5788    }
 5789
 5790    fn add_workspace_actions_listeners(
 5791        &self,
 5792        mut div: Div,
 5793        window: &mut Window,
 5794        cx: &mut Context<Self>,
 5795    ) -> Div {
 5796        for action in self.workspace_actions.iter() {
 5797            div = (action)(div, self, window, cx)
 5798        }
 5799        div
 5800    }
 5801
 5802    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 5803        self.modal_layer.read(cx).has_active_modal()
 5804    }
 5805
 5806    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 5807        self.modal_layer.read(cx).active_modal()
 5808    }
 5809
 5810    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 5811    where
 5812        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 5813    {
 5814        self.modal_layer.update(cx, |modal_layer, cx| {
 5815            modal_layer.toggle_modal(window, cx, build)
 5816        })
 5817    }
 5818
 5819    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 5820        self.toast_layer
 5821            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 5822    }
 5823
 5824    pub fn toggle_centered_layout(
 5825        &mut self,
 5826        _: &ToggleCenteredLayout,
 5827        _: &mut Window,
 5828        cx: &mut Context<Self>,
 5829    ) {
 5830        self.centered_layout = !self.centered_layout;
 5831        if let Some(database_id) = self.database_id() {
 5832            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 5833                .detach_and_log_err(cx);
 5834        }
 5835        cx.notify();
 5836    }
 5837
 5838    fn adjust_padding(padding: Option<f32>) -> f32 {
 5839        padding
 5840            .unwrap_or(Self::DEFAULT_PADDING)
 5841            .clamp(0.0, Self::MAX_PADDING)
 5842    }
 5843
 5844    fn render_dock(
 5845        &self,
 5846        position: DockPosition,
 5847        dock: &Entity<Dock>,
 5848        window: &mut Window,
 5849        cx: &mut App,
 5850    ) -> Option<Div> {
 5851        if self.zoomed_position == Some(position) {
 5852            return None;
 5853        }
 5854
 5855        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 5856            let pane = panel.pane(cx)?;
 5857            let follower_states = &self.follower_states;
 5858            leader_border_for_pane(follower_states, &pane, window, cx)
 5859        });
 5860
 5861        Some(
 5862            div()
 5863                .flex()
 5864                .flex_none()
 5865                .overflow_hidden()
 5866                .child(dock.clone())
 5867                .children(leader_border),
 5868        )
 5869    }
 5870
 5871    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 5872        window.root().flatten()
 5873    }
 5874
 5875    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 5876        self.zoomed.as_ref()
 5877    }
 5878
 5879    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 5880        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 5881            return;
 5882        };
 5883        let windows = cx.windows();
 5884        let next_window =
 5885            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 5886                || {
 5887                    windows
 5888                        .iter()
 5889                        .cycle()
 5890                        .skip_while(|window| window.window_id() != current_window_id)
 5891                        .nth(1)
 5892                },
 5893            );
 5894
 5895        if let Some(window) = next_window {
 5896            window
 5897                .update(cx, |_, window, _| window.activate_window())
 5898                .ok();
 5899        }
 5900    }
 5901
 5902    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 5903        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 5904            return;
 5905        };
 5906        let windows = cx.windows();
 5907        let prev_window =
 5908            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 5909                || {
 5910                    windows
 5911                        .iter()
 5912                        .rev()
 5913                        .cycle()
 5914                        .skip_while(|window| window.window_id() != current_window_id)
 5915                        .nth(1)
 5916                },
 5917            );
 5918
 5919        if let Some(window) = prev_window {
 5920            window
 5921                .update(cx, |_, window, _| window.activate_window())
 5922                .ok();
 5923        }
 5924    }
 5925
 5926    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 5927        if cx.stop_active_drag(window) {
 5928        } else if let Some((notification_id, _)) = self.notifications.pop() {
 5929            dismiss_app_notification(&notification_id, cx);
 5930        } else {
 5931            cx.propagate();
 5932        }
 5933    }
 5934
 5935    fn adjust_dock_size_by_px(
 5936        &mut self,
 5937        panel_size: Pixels,
 5938        dock_pos: DockPosition,
 5939        px: Pixels,
 5940        window: &mut Window,
 5941        cx: &mut Context<Self>,
 5942    ) {
 5943        match dock_pos {
 5944            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 5945            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 5946            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 5947        }
 5948    }
 5949
 5950    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 5951        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 5952
 5953        self.left_dock.update(cx, |left_dock, cx| {
 5954            if WorkspaceSettings::get_global(cx)
 5955                .resize_all_panels_in_dock
 5956                .contains(&DockPosition::Left)
 5957            {
 5958                left_dock.resize_all_panels(Some(size), window, cx);
 5959            } else {
 5960                left_dock.resize_active_panel(Some(size), window, cx);
 5961            }
 5962        });
 5963    }
 5964
 5965    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 5966        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 5967        self.left_dock.read_with(cx, |left_dock, cx| {
 5968            let left_dock_size = left_dock
 5969                .active_panel_size(window, cx)
 5970                .unwrap_or(Pixels(0.0));
 5971            if left_dock_size + size > self.bounds.right() {
 5972                size = self.bounds.right() - left_dock_size
 5973            }
 5974        });
 5975        self.right_dock.update(cx, |right_dock, cx| {
 5976            if WorkspaceSettings::get_global(cx)
 5977                .resize_all_panels_in_dock
 5978                .contains(&DockPosition::Right)
 5979            {
 5980                right_dock.resize_all_panels(Some(size), window, cx);
 5981            } else {
 5982                right_dock.resize_active_panel(Some(size), window, cx);
 5983            }
 5984        });
 5985    }
 5986
 5987    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 5988        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 5989        self.bottom_dock.update(cx, |bottom_dock, cx| {
 5990            if WorkspaceSettings::get_global(cx)
 5991                .resize_all_panels_in_dock
 5992                .contains(&DockPosition::Bottom)
 5993            {
 5994                bottom_dock.resize_all_panels(Some(size), window, cx);
 5995            } else {
 5996                bottom_dock.resize_active_panel(Some(size), window, cx);
 5997            }
 5998        });
 5999    }
 6000
 6001    fn toggle_edit_predictions_all_files(
 6002        &mut self,
 6003        _: &ToggleEditPrediction,
 6004        _window: &mut Window,
 6005        cx: &mut Context<Self>,
 6006    ) {
 6007        let fs = self.project().read(cx).fs().clone();
 6008        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6009        update_settings_file(fs, cx, move |file, _| {
 6010            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6011        });
 6012    }
 6013}
 6014
 6015fn leader_border_for_pane(
 6016    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6017    pane: &Entity<Pane>,
 6018    _: &Window,
 6019    cx: &App,
 6020) -> Option<Div> {
 6021    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6022        if state.pane() == pane {
 6023            Some((*leader_id, state))
 6024        } else {
 6025            None
 6026        }
 6027    })?;
 6028
 6029    let mut leader_color = match leader_id {
 6030        CollaboratorId::PeerId(leader_peer_id) => {
 6031            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6032            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6033
 6034            cx.theme()
 6035                .players()
 6036                .color_for_participant(leader.participant_index.0)
 6037                .cursor
 6038        }
 6039        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6040    };
 6041    leader_color.fade_out(0.3);
 6042    Some(
 6043        div()
 6044            .absolute()
 6045            .size_full()
 6046            .left_0()
 6047            .top_0()
 6048            .border_2()
 6049            .border_color(leader_color),
 6050    )
 6051}
 6052
 6053fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6054    ZED_WINDOW_POSITION
 6055        .zip(*ZED_WINDOW_SIZE)
 6056        .map(|(position, size)| Bounds {
 6057            origin: position,
 6058            size,
 6059        })
 6060}
 6061
 6062fn open_items(
 6063    serialized_workspace: Option<SerializedWorkspace>,
 6064    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6065    window: &mut Window,
 6066    cx: &mut Context<Workspace>,
 6067) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6068    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6069        Workspace::load_workspace(
 6070            serialized_workspace,
 6071            project_paths_to_open
 6072                .iter()
 6073                .map(|(_, project_path)| project_path)
 6074                .cloned()
 6075                .collect(),
 6076            window,
 6077            cx,
 6078        )
 6079    });
 6080
 6081    cx.spawn_in(window, async move |workspace, cx| {
 6082        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6083
 6084        if let Some(restored_items) = restored_items {
 6085            let restored_items = restored_items.await?;
 6086
 6087            let restored_project_paths = restored_items
 6088                .iter()
 6089                .filter_map(|item| {
 6090                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6091                        .ok()
 6092                        .flatten()
 6093                })
 6094                .collect::<HashSet<_>>();
 6095
 6096            for restored_item in restored_items {
 6097                opened_items.push(restored_item.map(Ok));
 6098            }
 6099
 6100            project_paths_to_open
 6101                .iter_mut()
 6102                .for_each(|(_, project_path)| {
 6103                    if let Some(project_path_to_open) = project_path
 6104                        && restored_project_paths.contains(project_path_to_open)
 6105                    {
 6106                        *project_path = None;
 6107                    }
 6108                });
 6109        } else {
 6110            for _ in 0..project_paths_to_open.len() {
 6111                opened_items.push(None);
 6112            }
 6113        }
 6114        assert!(opened_items.len() == project_paths_to_open.len());
 6115
 6116        let tasks =
 6117            project_paths_to_open
 6118                .into_iter()
 6119                .enumerate()
 6120                .map(|(ix, (abs_path, project_path))| {
 6121                    let workspace = workspace.clone();
 6122                    cx.spawn(async move |cx| {
 6123                        let file_project_path = project_path?;
 6124                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6125                            workspace.project().update(cx, |project, cx| {
 6126                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6127                            })
 6128                        });
 6129
 6130                        // We only want to open file paths here. If one of the items
 6131                        // here is a directory, it was already opened further above
 6132                        // with a `find_or_create_worktree`.
 6133                        if let Ok(task) = abs_path_task
 6134                            && task.await.is_none_or(|p| p.is_file())
 6135                        {
 6136                            return Some((
 6137                                ix,
 6138                                workspace
 6139                                    .update_in(cx, |workspace, window, cx| {
 6140                                        workspace.open_path(
 6141                                            file_project_path,
 6142                                            None,
 6143                                            true,
 6144                                            window,
 6145                                            cx,
 6146                                        )
 6147                                    })
 6148                                    .log_err()?
 6149                                    .await,
 6150                            ));
 6151                        }
 6152                        None
 6153                    })
 6154                });
 6155
 6156        let tasks = tasks.collect::<Vec<_>>();
 6157
 6158        let tasks = futures::future::join_all(tasks);
 6159        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6160            opened_items[ix] = Some(path_open_result);
 6161        }
 6162
 6163        Ok(opened_items)
 6164    })
 6165}
 6166
 6167enum ActivateInDirectionTarget {
 6168    Pane(Entity<Pane>),
 6169    Dock(Entity<Dock>),
 6170}
 6171
 6172fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6173    workspace
 6174        .update(cx, |workspace, _, cx| {
 6175            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6176                struct DatabaseFailedNotification;
 6177
 6178                workspace.show_notification(
 6179                    NotificationId::unique::<DatabaseFailedNotification>(),
 6180                    cx,
 6181                    |cx| {
 6182                        cx.new(|cx| {
 6183                            MessageNotification::new("Failed to load the database file.", cx)
 6184                                .primary_message("File an Issue")
 6185                                .primary_icon(IconName::Plus)
 6186                                .primary_on_click(|window, cx| {
 6187                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6188                                })
 6189                        })
 6190                    },
 6191                );
 6192            }
 6193        })
 6194        .log_err();
 6195}
 6196
 6197fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6198    if val == 0 {
 6199        ThemeSettings::get_global(cx).ui_font_size(cx)
 6200    } else {
 6201        px(val as f32)
 6202    }
 6203}
 6204
 6205fn adjust_active_dock_size_by_px(
 6206    px: Pixels,
 6207    workspace: &mut Workspace,
 6208    window: &mut Window,
 6209    cx: &mut Context<Workspace>,
 6210) {
 6211    let Some(active_dock) = workspace
 6212        .all_docks()
 6213        .into_iter()
 6214        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6215    else {
 6216        return;
 6217    };
 6218    let dock = active_dock.read(cx);
 6219    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6220        return;
 6221    };
 6222    let dock_pos = dock.position();
 6223    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6224}
 6225
 6226fn adjust_open_docks_size_by_px(
 6227    px: Pixels,
 6228    workspace: &mut Workspace,
 6229    window: &mut Window,
 6230    cx: &mut Context<Workspace>,
 6231) {
 6232    let docks = workspace
 6233        .all_docks()
 6234        .into_iter()
 6235        .filter_map(|dock| {
 6236            if dock.read(cx).is_open() {
 6237                let dock = dock.read(cx);
 6238                let panel_size = dock.active_panel_size(window, cx)?;
 6239                let dock_pos = dock.position();
 6240                Some((panel_size, dock_pos, px))
 6241            } else {
 6242                None
 6243            }
 6244        })
 6245        .collect::<Vec<_>>();
 6246
 6247    docks
 6248        .into_iter()
 6249        .for_each(|(panel_size, dock_pos, offset)| {
 6250            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6251        });
 6252}
 6253
 6254impl Focusable for Workspace {
 6255    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6256        self.active_pane.focus_handle(cx)
 6257    }
 6258}
 6259
 6260#[derive(Clone)]
 6261struct DraggedDock(DockPosition);
 6262
 6263impl Render for DraggedDock {
 6264    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6265        gpui::Empty
 6266    }
 6267}
 6268
 6269impl Render for Workspace {
 6270    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6271        let mut context = KeyContext::new_with_defaults();
 6272        context.add("Workspace");
 6273        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6274        if let Some(status) = self
 6275            .debugger_provider
 6276            .as_ref()
 6277            .and_then(|provider| provider.active_thread_state(cx))
 6278        {
 6279            match status {
 6280                ThreadStatus::Running | ThreadStatus::Stepping => {
 6281                    context.add("debugger_running");
 6282                }
 6283                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6284                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6285            }
 6286        }
 6287
 6288        let centered_layout = self.centered_layout
 6289            && self.center.panes().len() == 1
 6290            && self.active_item(cx).is_some();
 6291        let render_padding = |size| {
 6292            (size > 0.0).then(|| {
 6293                div()
 6294                    .h_full()
 6295                    .w(relative(size))
 6296                    .bg(cx.theme().colors().editor_background)
 6297                    .border_color(cx.theme().colors().pane_group_border)
 6298            })
 6299        };
 6300        let paddings = if centered_layout {
 6301            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6302            (
 6303                render_padding(Self::adjust_padding(settings.left_padding)),
 6304                render_padding(Self::adjust_padding(settings.right_padding)),
 6305            )
 6306        } else {
 6307            (None, None)
 6308        };
 6309        let ui_font = theme::setup_ui_font(window, cx);
 6310
 6311        let theme = cx.theme().clone();
 6312        let colors = theme.colors();
 6313        let notification_entities = self
 6314            .notifications
 6315            .iter()
 6316            .map(|(_, notification)| notification.entity_id())
 6317            .collect::<Vec<_>>();
 6318        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6319
 6320        client_side_decorations(
 6321            self.actions(div(), window, cx)
 6322                .key_context(context)
 6323                .relative()
 6324                .size_full()
 6325                .flex()
 6326                .flex_col()
 6327                .font(ui_font)
 6328                .gap_0()
 6329                .justify_start()
 6330                .items_start()
 6331                .text_color(colors.text)
 6332                .overflow_hidden()
 6333                .children(self.titlebar_item.clone())
 6334                .on_modifiers_changed(move |_, _, cx| {
 6335                    for &id in &notification_entities {
 6336                        cx.notify(id);
 6337                    }
 6338                })
 6339                .child(
 6340                    div()
 6341                        .size_full()
 6342                        .relative()
 6343                        .flex_1()
 6344                        .flex()
 6345                        .flex_col()
 6346                        .child(
 6347                            div()
 6348                                .id("workspace")
 6349                                .bg(colors.background)
 6350                                .relative()
 6351                                .flex_1()
 6352                                .w_full()
 6353                                .flex()
 6354                                .flex_col()
 6355                                .overflow_hidden()
 6356                                .border_t_1()
 6357                                .border_b_1()
 6358                                .border_color(colors.border)
 6359                                .child({
 6360                                    let this = cx.entity();
 6361                                    canvas(
 6362                                        move |bounds, window, cx| {
 6363                                            this.update(cx, |this, cx| {
 6364                                                let bounds_changed = this.bounds != bounds;
 6365                                                this.bounds = bounds;
 6366
 6367                                                if bounds_changed {
 6368                                                    this.left_dock.update(cx, |dock, cx| {
 6369                                                        dock.clamp_panel_size(
 6370                                                            bounds.size.width,
 6371                                                            window,
 6372                                                            cx,
 6373                                                        )
 6374                                                    });
 6375
 6376                                                    this.right_dock.update(cx, |dock, cx| {
 6377                                                        dock.clamp_panel_size(
 6378                                                            bounds.size.width,
 6379                                                            window,
 6380                                                            cx,
 6381                                                        )
 6382                                                    });
 6383
 6384                                                    this.bottom_dock.update(cx, |dock, cx| {
 6385                                                        dock.clamp_panel_size(
 6386                                                            bounds.size.height,
 6387                                                            window,
 6388                                                            cx,
 6389                                                        )
 6390                                                    });
 6391                                                }
 6392                                            })
 6393                                        },
 6394                                        |_, _, _, _| {},
 6395                                    )
 6396                                    .absolute()
 6397                                    .size_full()
 6398                                })
 6399                                .when(self.zoomed.is_none(), |this| {
 6400                                    this.on_drag_move(cx.listener(
 6401                                        move |workspace,
 6402                                              e: &DragMoveEvent<DraggedDock>,
 6403                                              window,
 6404                                              cx| {
 6405                                            if workspace.previous_dock_drag_coordinates
 6406                                                != Some(e.event.position)
 6407                                            {
 6408                                                workspace.previous_dock_drag_coordinates =
 6409                                                    Some(e.event.position);
 6410                                                match e.drag(cx).0 {
 6411                                                    DockPosition::Left => {
 6412                                                        workspace.resize_left_dock(
 6413                                                            e.event.position.x
 6414                                                                - workspace.bounds.left(),
 6415                                                            window,
 6416                                                            cx,
 6417                                                        );
 6418                                                    }
 6419                                                    DockPosition::Right => {
 6420                                                        workspace.resize_right_dock(
 6421                                                            workspace.bounds.right()
 6422                                                                - e.event.position.x,
 6423                                                            window,
 6424                                                            cx,
 6425                                                        );
 6426                                                    }
 6427                                                    DockPosition::Bottom => {
 6428                                                        workspace.resize_bottom_dock(
 6429                                                            workspace.bounds.bottom()
 6430                                                                - e.event.position.y,
 6431                                                            window,
 6432                                                            cx,
 6433                                                        );
 6434                                                    }
 6435                                                };
 6436                                                workspace.serialize_workspace(window, cx);
 6437                                            }
 6438                                        },
 6439                                    ))
 6440                                })
 6441                                .child({
 6442                                    match bottom_dock_layout {
 6443                                        BottomDockLayout::Full => div()
 6444                                            .flex()
 6445                                            .flex_col()
 6446                                            .h_full()
 6447                                            .child(
 6448                                                div()
 6449                                                    .flex()
 6450                                                    .flex_row()
 6451                                                    .flex_1()
 6452                                                    .overflow_hidden()
 6453                                                    .children(self.render_dock(
 6454                                                        DockPosition::Left,
 6455                                                        &self.left_dock,
 6456                                                        window,
 6457                                                        cx,
 6458                                                    ))
 6459                                                    .child(
 6460                                                        div()
 6461                                                            .flex()
 6462                                                            .flex_col()
 6463                                                            .flex_1()
 6464                                                            .overflow_hidden()
 6465                                                            .child(
 6466                                                                h_flex()
 6467                                                                    .flex_1()
 6468                                                                    .when_some(
 6469                                                                        paddings.0,
 6470                                                                        |this, p| {
 6471                                                                            this.child(
 6472                                                                                p.border_r_1(),
 6473                                                                            )
 6474                                                                        },
 6475                                                                    )
 6476                                                                    .child(self.center.render(
 6477                                                                        self.zoomed.as_ref(),
 6478                                                                        &PaneRenderContext {
 6479                                                                            follower_states:
 6480                                                                                &self.follower_states,
 6481                                                                            active_call: self.active_call(),
 6482                                                                            active_pane: &self.active_pane,
 6483                                                                            app_state: &self.app_state,
 6484                                                                            project: &self.project,
 6485                                                                            workspace: &self.weak_self,
 6486                                                                        },
 6487                                                                        window,
 6488                                                                        cx,
 6489                                                                    ))
 6490                                                                    .when_some(
 6491                                                                        paddings.1,
 6492                                                                        |this, p| {
 6493                                                                            this.child(
 6494                                                                                p.border_l_1(),
 6495                                                                            )
 6496                                                                        },
 6497                                                                    ),
 6498                                                            ),
 6499                                                    )
 6500                                                    .children(self.render_dock(
 6501                                                        DockPosition::Right,
 6502                                                        &self.right_dock,
 6503                                                        window,
 6504                                                        cx,
 6505                                                    )),
 6506                                            )
 6507                                            .child(div().w_full().children(self.render_dock(
 6508                                                DockPosition::Bottom,
 6509                                                &self.bottom_dock,
 6510                                                window,
 6511                                                cx
 6512                                            ))),
 6513
 6514                                        BottomDockLayout::LeftAligned => div()
 6515                                            .flex()
 6516                                            .flex_row()
 6517                                            .h_full()
 6518                                            .child(
 6519                                                div()
 6520                                                    .flex()
 6521                                                    .flex_col()
 6522                                                    .flex_1()
 6523                                                    .h_full()
 6524                                                    .child(
 6525                                                        div()
 6526                                                            .flex()
 6527                                                            .flex_row()
 6528                                                            .flex_1()
 6529                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 6530                                                            .child(
 6531                                                                div()
 6532                                                                    .flex()
 6533                                                                    .flex_col()
 6534                                                                    .flex_1()
 6535                                                                    .overflow_hidden()
 6536                                                                    .child(
 6537                                                                        h_flex()
 6538                                                                            .flex_1()
 6539                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6540                                                                            .child(self.center.render(
 6541                                                                                self.zoomed.as_ref(),
 6542                                                                                &PaneRenderContext {
 6543                                                                                    follower_states:
 6544                                                                                        &self.follower_states,
 6545                                                                                    active_call: self.active_call(),
 6546                                                                                    active_pane: &self.active_pane,
 6547                                                                                    app_state: &self.app_state,
 6548                                                                                    project: &self.project,
 6549                                                                                    workspace: &self.weak_self,
 6550                                                                                },
 6551                                                                                window,
 6552                                                                                cx,
 6553                                                                            ))
 6554                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6555                                                                    )
 6556                                                            )
 6557                                                    )
 6558                                                    .child(
 6559                                                        div()
 6560                                                            .w_full()
 6561                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6562                                                    ),
 6563                                            )
 6564                                            .children(self.render_dock(
 6565                                                DockPosition::Right,
 6566                                                &self.right_dock,
 6567                                                window,
 6568                                                cx,
 6569                                            )),
 6570
 6571                                        BottomDockLayout::RightAligned => div()
 6572                                            .flex()
 6573                                            .flex_row()
 6574                                            .h_full()
 6575                                            .children(self.render_dock(
 6576                                                DockPosition::Left,
 6577                                                &self.left_dock,
 6578                                                window,
 6579                                                cx,
 6580                                            ))
 6581                                            .child(
 6582                                                div()
 6583                                                    .flex()
 6584                                                    .flex_col()
 6585                                                    .flex_1()
 6586                                                    .h_full()
 6587                                                    .child(
 6588                                                        div()
 6589                                                            .flex()
 6590                                                            .flex_row()
 6591                                                            .flex_1()
 6592                                                            .child(
 6593                                                                div()
 6594                                                                    .flex()
 6595                                                                    .flex_col()
 6596                                                                    .flex_1()
 6597                                                                    .overflow_hidden()
 6598                                                                    .child(
 6599                                                                        h_flex()
 6600                                                                            .flex_1()
 6601                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6602                                                                            .child(self.center.render(
 6603                                                                                self.zoomed.as_ref(),
 6604                                                                                &PaneRenderContext {
 6605                                                                                    follower_states:
 6606                                                                                        &self.follower_states,
 6607                                                                                    active_call: self.active_call(),
 6608                                                                                    active_pane: &self.active_pane,
 6609                                                                                    app_state: &self.app_state,
 6610                                                                                    project: &self.project,
 6611                                                                                    workspace: &self.weak_self,
 6612                                                                                },
 6613                                                                                window,
 6614                                                                                cx,
 6615                                                                            ))
 6616                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6617                                                                    )
 6618                                                            )
 6619                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 6620                                                    )
 6621                                                    .child(
 6622                                                        div()
 6623                                                            .w_full()
 6624                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6625                                                    ),
 6626                                            ),
 6627
 6628                                        BottomDockLayout::Contained => div()
 6629                                            .flex()
 6630                                            .flex_row()
 6631                                            .h_full()
 6632                                            .children(self.render_dock(
 6633                                                DockPosition::Left,
 6634                                                &self.left_dock,
 6635                                                window,
 6636                                                cx,
 6637                                            ))
 6638                                            .child(
 6639                                                div()
 6640                                                    .flex()
 6641                                                    .flex_col()
 6642                                                    .flex_1()
 6643                                                    .overflow_hidden()
 6644                                                    .child(
 6645                                                        h_flex()
 6646                                                            .flex_1()
 6647                                                            .when_some(paddings.0, |this, p| {
 6648                                                                this.child(p.border_r_1())
 6649                                                            })
 6650                                                            .child(self.center.render(
 6651                                                                self.zoomed.as_ref(),
 6652                                                                &PaneRenderContext {
 6653                                                                    follower_states:
 6654                                                                        &self.follower_states,
 6655                                                                    active_call: self.active_call(),
 6656                                                                    active_pane: &self.active_pane,
 6657                                                                    app_state: &self.app_state,
 6658                                                                    project: &self.project,
 6659                                                                    workspace: &self.weak_self,
 6660                                                                },
 6661                                                                window,
 6662                                                                cx,
 6663                                                            ))
 6664                                                            .when_some(paddings.1, |this, p| {
 6665                                                                this.child(p.border_l_1())
 6666                                                            }),
 6667                                                    )
 6668                                                    .children(self.render_dock(
 6669                                                        DockPosition::Bottom,
 6670                                                        &self.bottom_dock,
 6671                                                        window,
 6672                                                        cx,
 6673                                                    )),
 6674                                            )
 6675                                            .children(self.render_dock(
 6676                                                DockPosition::Right,
 6677                                                &self.right_dock,
 6678                                                window,
 6679                                                cx,
 6680                                            )),
 6681                                    }
 6682                                })
 6683                                .children(self.zoomed.as_ref().and_then(|view| {
 6684                                    let zoomed_view = view.upgrade()?;
 6685                                    let div = div()
 6686                                        .occlude()
 6687                                        .absolute()
 6688                                        .overflow_hidden()
 6689                                        .border_color(colors.border)
 6690                                        .bg(colors.background)
 6691                                        .child(zoomed_view)
 6692                                        .inset_0()
 6693                                        .shadow_lg();
 6694
 6695                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 6696                                       return Some(div);
 6697                                    }
 6698
 6699                                    Some(match self.zoomed_position {
 6700                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 6701                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 6702                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 6703                                        None => {
 6704                                            div.top_2().bottom_2().left_2().right_2().border_1()
 6705                                        }
 6706                                    })
 6707                                }))
 6708                                .children(self.render_notifications(window, cx)),
 6709                        )
 6710                        .child(self.status_bar.clone())
 6711                        .child(self.modal_layer.clone())
 6712                        .child(self.toast_layer.clone()),
 6713                ),
 6714            window,
 6715            cx,
 6716        )
 6717    }
 6718}
 6719
 6720impl WorkspaceStore {
 6721    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 6722        Self {
 6723            workspaces: Default::default(),
 6724            _subscriptions: vec![
 6725                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 6726                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 6727            ],
 6728            client,
 6729        }
 6730    }
 6731
 6732    pub fn update_followers(
 6733        &self,
 6734        project_id: Option<u64>,
 6735        update: proto::update_followers::Variant,
 6736        cx: &App,
 6737    ) -> Option<()> {
 6738        let active_call = ActiveCall::try_global(cx)?;
 6739        let room_id = active_call.read(cx).room()?.read(cx).id();
 6740        self.client
 6741            .send(proto::UpdateFollowers {
 6742                room_id,
 6743                project_id,
 6744                variant: Some(update),
 6745            })
 6746            .log_err()
 6747    }
 6748
 6749    pub async fn handle_follow(
 6750        this: Entity<Self>,
 6751        envelope: TypedEnvelope<proto::Follow>,
 6752        mut cx: AsyncApp,
 6753    ) -> Result<proto::FollowResponse> {
 6754        this.update(&mut cx, |this, cx| {
 6755            let follower = Follower {
 6756                project_id: envelope.payload.project_id,
 6757                peer_id: envelope.original_sender_id()?,
 6758            };
 6759
 6760            let mut response = proto::FollowResponse::default();
 6761            this.workspaces.retain(|workspace| {
 6762                workspace
 6763                    .update(cx, |workspace, window, cx| {
 6764                        let handler_response =
 6765                            workspace.handle_follow(follower.project_id, window, cx);
 6766                        if let Some(active_view) = handler_response.active_view
 6767                            && workspace.project.read(cx).remote_id() == follower.project_id
 6768                        {
 6769                            response.active_view = Some(active_view)
 6770                        }
 6771                    })
 6772                    .is_ok()
 6773            });
 6774
 6775            Ok(response)
 6776        })?
 6777    }
 6778
 6779    async fn handle_update_followers(
 6780        this: Entity<Self>,
 6781        envelope: TypedEnvelope<proto::UpdateFollowers>,
 6782        mut cx: AsyncApp,
 6783    ) -> Result<()> {
 6784        let leader_id = envelope.original_sender_id()?;
 6785        let update = envelope.payload;
 6786
 6787        this.update(&mut cx, |this, cx| {
 6788            this.workspaces.retain(|workspace| {
 6789                workspace
 6790                    .update(cx, |workspace, window, cx| {
 6791                        let project_id = workspace.project.read(cx).remote_id();
 6792                        if update.project_id != project_id && update.project_id.is_some() {
 6793                            return;
 6794                        }
 6795                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 6796                    })
 6797                    .is_ok()
 6798            });
 6799            Ok(())
 6800        })?
 6801    }
 6802
 6803    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 6804        &self.workspaces
 6805    }
 6806}
 6807
 6808impl ViewId {
 6809    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 6810        Ok(Self {
 6811            creator: message
 6812                .creator
 6813                .map(CollaboratorId::PeerId)
 6814                .context("creator is missing")?,
 6815            id: message.id,
 6816        })
 6817    }
 6818
 6819    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 6820        if let CollaboratorId::PeerId(peer_id) = self.creator {
 6821            Some(proto::ViewId {
 6822                creator: Some(peer_id),
 6823                id: self.id,
 6824            })
 6825        } else {
 6826            None
 6827        }
 6828    }
 6829}
 6830
 6831impl FollowerState {
 6832    fn pane(&self) -> &Entity<Pane> {
 6833        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 6834    }
 6835}
 6836
 6837pub trait WorkspaceHandle {
 6838    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 6839}
 6840
 6841impl WorkspaceHandle for Entity<Workspace> {
 6842    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 6843        self.read(cx)
 6844            .worktrees(cx)
 6845            .flat_map(|worktree| {
 6846                let worktree_id = worktree.read(cx).id();
 6847                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 6848                    worktree_id,
 6849                    path: f.path.clone(),
 6850                })
 6851            })
 6852            .collect::<Vec<_>>()
 6853    }
 6854}
 6855
 6856pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 6857    DB.last_workspace().await.log_err().flatten()
 6858}
 6859
 6860pub fn last_session_workspace_locations(
 6861    last_session_id: &str,
 6862    last_session_window_stack: Option<Vec<WindowId>>,
 6863) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 6864    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 6865        .log_err()
 6866}
 6867
 6868actions!(
 6869    collab,
 6870    [
 6871        /// Opens the channel notes for the current call.
 6872        ///
 6873        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 6874        /// can be copied via "Copy link to section" in the context menu of the channel notes
 6875        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 6876        OpenChannelNotes,
 6877        /// Mutes your microphone.
 6878        Mute,
 6879        /// Deafens yourself (mute both microphone and speakers).
 6880        Deafen,
 6881        /// Leaves the current call.
 6882        LeaveCall,
 6883        /// Shares the current project with collaborators.
 6884        ShareProject,
 6885        /// Shares your screen with collaborators.
 6886        ScreenShare
 6887    ]
 6888);
 6889actions!(
 6890    zed,
 6891    [
 6892        /// Opens the Zed log file.
 6893        OpenLog
 6894    ]
 6895);
 6896
 6897async fn join_channel_internal(
 6898    channel_id: ChannelId,
 6899    app_state: &Arc<AppState>,
 6900    requesting_window: Option<WindowHandle<Workspace>>,
 6901    active_call: &Entity<ActiveCall>,
 6902    cx: &mut AsyncApp,
 6903) -> Result<bool> {
 6904    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 6905        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 6906            return (false, None);
 6907        };
 6908
 6909        let already_in_channel = room.channel_id() == Some(channel_id);
 6910        let should_prompt = room.is_sharing_project()
 6911            && !room.remote_participants().is_empty()
 6912            && !already_in_channel;
 6913        let open_room = if already_in_channel {
 6914            active_call.room().cloned()
 6915        } else {
 6916            None
 6917        };
 6918        (should_prompt, open_room)
 6919    })?;
 6920
 6921    if let Some(room) = open_room {
 6922        let task = room.update(cx, |room, cx| {
 6923            if let Some((project, host)) = room.most_active_project(cx) {
 6924                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 6925            }
 6926
 6927            None
 6928        })?;
 6929        if let Some(task) = task {
 6930            task.await?;
 6931        }
 6932        return anyhow::Ok(true);
 6933    }
 6934
 6935    if should_prompt {
 6936        if let Some(workspace) = requesting_window {
 6937            let answer = workspace
 6938                .update(cx, |_, window, cx| {
 6939                    window.prompt(
 6940                        PromptLevel::Warning,
 6941                        "Do you want to switch channels?",
 6942                        Some("Leaving this call will unshare your current project."),
 6943                        &["Yes, Join Channel", "Cancel"],
 6944                        cx,
 6945                    )
 6946                })?
 6947                .await;
 6948
 6949            if answer == Ok(1) {
 6950                return Ok(false);
 6951            }
 6952        } else {
 6953            return Ok(false); // unreachable!() hopefully
 6954        }
 6955    }
 6956
 6957    let client = cx.update(|cx| active_call.read(cx).client())?;
 6958
 6959    let mut client_status = client.status();
 6960
 6961    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 6962    'outer: loop {
 6963        let Some(status) = client_status.recv().await else {
 6964            anyhow::bail!("error connecting");
 6965        };
 6966
 6967        match status {
 6968            Status::Connecting
 6969            | Status::Authenticating
 6970            | Status::Authenticated
 6971            | Status::Reconnecting
 6972            | Status::Reauthenticating
 6973            | Status::Reauthenticated => continue,
 6974            Status::Connected { .. } => break 'outer,
 6975            Status::SignedOut | Status::AuthenticationError => {
 6976                return Err(ErrorCode::SignedOut.into());
 6977            }
 6978            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 6979            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 6980                return Err(ErrorCode::Disconnected.into());
 6981            }
 6982        }
 6983    }
 6984
 6985    let room = active_call
 6986        .update(cx, |active_call, cx| {
 6987            active_call.join_channel(channel_id, cx)
 6988        })?
 6989        .await?;
 6990
 6991    let Some(room) = room else {
 6992        return anyhow::Ok(true);
 6993    };
 6994
 6995    room.update(cx, |room, _| room.room_update_completed())?
 6996        .await;
 6997
 6998    let task = room.update(cx, |room, cx| {
 6999        if let Some((project, host)) = room.most_active_project(cx) {
 7000            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7001        }
 7002
 7003        // If you are the first to join a channel, see if you should share your project.
 7004        if room.remote_participants().is_empty()
 7005            && !room.local_participant_is_guest()
 7006            && let Some(workspace) = requesting_window
 7007        {
 7008            let project = workspace.update(cx, |workspace, _, cx| {
 7009                let project = workspace.project.read(cx);
 7010
 7011                if !CallSettings::get_global(cx).share_on_join {
 7012                    return None;
 7013                }
 7014
 7015                if (project.is_local() || project.is_via_remote_server())
 7016                    && project.visible_worktrees(cx).any(|tree| {
 7017                        tree.read(cx)
 7018                            .root_entry()
 7019                            .is_some_and(|entry| entry.is_dir())
 7020                    })
 7021                {
 7022                    Some(workspace.project.clone())
 7023                } else {
 7024                    None
 7025                }
 7026            });
 7027            if let Ok(Some(project)) = project {
 7028                return Some(cx.spawn(async move |room, cx| {
 7029                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7030                        .await?;
 7031                    Ok(())
 7032                }));
 7033            }
 7034        }
 7035
 7036        None
 7037    })?;
 7038    if let Some(task) = task {
 7039        task.await?;
 7040        return anyhow::Ok(true);
 7041    }
 7042    anyhow::Ok(false)
 7043}
 7044
 7045pub fn join_channel(
 7046    channel_id: ChannelId,
 7047    app_state: Arc<AppState>,
 7048    requesting_window: Option<WindowHandle<Workspace>>,
 7049    cx: &mut App,
 7050) -> Task<Result<()>> {
 7051    let active_call = ActiveCall::global(cx);
 7052    cx.spawn(async move |cx| {
 7053        let result = join_channel_internal(
 7054            channel_id,
 7055            &app_state,
 7056            requesting_window,
 7057            &active_call,
 7058             cx,
 7059        )
 7060            .await;
 7061
 7062        // join channel succeeded, and opened a window
 7063        if matches!(result, Ok(true)) {
 7064            return anyhow::Ok(());
 7065        }
 7066
 7067        // find an existing workspace to focus and show call controls
 7068        let mut active_window =
 7069            requesting_window.or_else(|| activate_any_workspace_window( cx));
 7070        if active_window.is_none() {
 7071            // no open workspaces, make one to show the error in (blergh)
 7072            let (window_handle, _) = cx
 7073                .update(|cx| {
 7074                    Workspace::new_local(vec![], app_state.clone(), requesting_window, None, cx)
 7075                })?
 7076                .await?;
 7077
 7078            if result.is_ok() {
 7079                cx.update(|cx| {
 7080                    cx.dispatch_action(&OpenChannelNotes);
 7081                }).log_err();
 7082            }
 7083
 7084            active_window = Some(window_handle);
 7085        }
 7086
 7087        if let Err(err) = result {
 7088            log::error!("failed to join channel: {}", err);
 7089            if let Some(active_window) = active_window {
 7090                active_window
 7091                    .update(cx, |_, window, cx| {
 7092                        let detail: SharedString = match err.error_code() {
 7093                            ErrorCode::SignedOut => {
 7094                                "Please sign in to continue.".into()
 7095                            }
 7096                            ErrorCode::UpgradeRequired => {
 7097                                "Your are running an unsupported version of Zed. Please update to continue.".into()
 7098                            }
 7099                            ErrorCode::NoSuchChannel => {
 7100                                "No matching channel was found. Please check the link and try again.".into()
 7101                            }
 7102                            ErrorCode::Forbidden => {
 7103                                "This channel is private, and you do not have access. Please ask someone to add you and try again.".into()
 7104                            }
 7105                            ErrorCode::Disconnected => "Please check your internet connection and try again.".into(),
 7106                            _ => format!("{}\n\nPlease try again.", err).into(),
 7107                        };
 7108                        window.prompt(
 7109                            PromptLevel::Critical,
 7110                            "Failed to join channel",
 7111                            Some(&detail),
 7112                            &["Ok"],
 7113                        cx)
 7114                    })?
 7115                    .await
 7116                    .ok();
 7117            }
 7118        }
 7119
 7120        // return ok, we showed the error to the user.
 7121        anyhow::Ok(())
 7122    })
 7123}
 7124
 7125pub async fn get_any_active_workspace(
 7126    app_state: Arc<AppState>,
 7127    mut cx: AsyncApp,
 7128) -> anyhow::Result<WindowHandle<Workspace>> {
 7129    // find an existing workspace to focus and show call controls
 7130    let active_window = activate_any_workspace_window(&mut cx);
 7131    if active_window.is_none() {
 7132        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, cx))?
 7133            .await?;
 7134    }
 7135    activate_any_workspace_window(&mut cx).context("could not open zed")
 7136}
 7137
 7138fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7139    cx.update(|cx| {
 7140        if let Some(workspace_window) = cx
 7141            .active_window()
 7142            .and_then(|window| window.downcast::<Workspace>())
 7143        {
 7144            return Some(workspace_window);
 7145        }
 7146
 7147        for window in cx.windows() {
 7148            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7149                workspace_window
 7150                    .update(cx, |_, window, _| window.activate_window())
 7151                    .ok();
 7152                return Some(workspace_window);
 7153            }
 7154        }
 7155        None
 7156    })
 7157    .ok()
 7158    .flatten()
 7159}
 7160
 7161pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7162    cx.windows()
 7163        .into_iter()
 7164        .filter_map(|window| window.downcast::<Workspace>())
 7165        .filter(|workspace| {
 7166            workspace
 7167                .read(cx)
 7168                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7169        })
 7170        .collect()
 7171}
 7172
 7173#[derive(Default)]
 7174pub struct OpenOptions {
 7175    pub visible: Option<OpenVisible>,
 7176    pub focus: Option<bool>,
 7177    pub open_new_workspace: Option<bool>,
 7178    pub replace_window: Option<WindowHandle<Workspace>>,
 7179    pub env: Option<HashMap<String, String>>,
 7180}
 7181
 7182#[allow(clippy::type_complexity)]
 7183pub fn open_paths(
 7184    abs_paths: &[PathBuf],
 7185    app_state: Arc<AppState>,
 7186    open_options: OpenOptions,
 7187    cx: &mut App,
 7188) -> Task<
 7189    anyhow::Result<(
 7190        WindowHandle<Workspace>,
 7191        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7192    )>,
 7193> {
 7194    let abs_paths = abs_paths.to_vec();
 7195    let mut existing = None;
 7196    let mut best_match = None;
 7197    let mut open_visible = OpenVisible::All;
 7198
 7199    cx.spawn(async move |cx| {
 7200        if open_options.open_new_workspace != Some(true) {
 7201            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7202            let all_metadatas = futures::future::join_all(all_paths)
 7203                .await
 7204                .into_iter()
 7205                .filter_map(|result| result.ok().flatten())
 7206                .collect::<Vec<_>>();
 7207
 7208            cx.update(|cx| {
 7209                for window in local_workspace_windows(cx) {
 7210                    if let Ok(workspace) = window.read(cx) {
 7211                        let m = workspace.project.read(cx).visibility_for_paths(
 7212                            &abs_paths,
 7213                            &all_metadatas,
 7214                            open_options.open_new_workspace == None,
 7215                            cx,
 7216                        );
 7217                        if m > best_match {
 7218                            existing = Some(window);
 7219                            best_match = m;
 7220                        } else if best_match.is_none()
 7221                            && open_options.open_new_workspace == Some(false)
 7222                        {
 7223                            existing = Some(window)
 7224                        }
 7225                    }
 7226                }
 7227            })?;
 7228
 7229            if open_options.open_new_workspace.is_none()
 7230                && existing.is_none()
 7231                && all_metadatas.iter().all(|file| !file.is_dir)
 7232            {
 7233                cx.update(|cx| {
 7234                    if let Some(window) = cx
 7235                        .active_window()
 7236                        .and_then(|window| window.downcast::<Workspace>())
 7237                        && let Ok(workspace) = window.read(cx)
 7238                    {
 7239                        let project = workspace.project().read(cx);
 7240                        if project.is_local() && !project.is_via_collab() {
 7241                            existing = Some(window);
 7242                            open_visible = OpenVisible::None;
 7243                            return;
 7244                        }
 7245                    }
 7246                    for window in local_workspace_windows(cx) {
 7247                        if let Ok(workspace) = window.read(cx) {
 7248                            let project = workspace.project().read(cx);
 7249                            if project.is_via_collab() {
 7250                                continue;
 7251                            }
 7252                            existing = Some(window);
 7253                            open_visible = OpenVisible::None;
 7254                            break;
 7255                        }
 7256                    }
 7257                })?;
 7258            }
 7259        }
 7260
 7261        if let Some(existing) = existing {
 7262            let open_task = existing
 7263                .update(cx, |workspace, window, cx| {
 7264                    window.activate_window();
 7265                    workspace.open_paths(
 7266                        abs_paths,
 7267                        OpenOptions {
 7268                            visible: Some(open_visible),
 7269                            ..Default::default()
 7270                        },
 7271                        None,
 7272                        window,
 7273                        cx,
 7274                    )
 7275                })?
 7276                .await;
 7277
 7278            _ = existing.update(cx, |workspace, _, cx| {
 7279                for item in open_task.iter().flatten() {
 7280                    if let Err(e) = item {
 7281                        workspace.show_error(&e, cx);
 7282                    }
 7283                }
 7284            });
 7285
 7286            Ok((existing, open_task))
 7287        } else {
 7288            cx.update(move |cx| {
 7289                Workspace::new_local(
 7290                    abs_paths,
 7291                    app_state.clone(),
 7292                    open_options.replace_window,
 7293                    open_options.env,
 7294                    cx,
 7295                )
 7296            })?
 7297            .await
 7298        }
 7299    })
 7300}
 7301
 7302pub fn open_new(
 7303    open_options: OpenOptions,
 7304    app_state: Arc<AppState>,
 7305    cx: &mut App,
 7306    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 7307) -> Task<anyhow::Result<()>> {
 7308    let task = Workspace::new_local(Vec::new(), app_state, None, open_options.env, cx);
 7309    cx.spawn(async move |cx| {
 7310        let (workspace, opened_paths) = task.await?;
 7311        workspace.update(cx, |workspace, window, cx| {
 7312            if opened_paths.is_empty() {
 7313                init(workspace, window, cx)
 7314            }
 7315        })?;
 7316        Ok(())
 7317    })
 7318}
 7319
 7320pub fn create_and_open_local_file(
 7321    path: &'static Path,
 7322    window: &mut Window,
 7323    cx: &mut Context<Workspace>,
 7324    default_content: impl 'static + Send + FnOnce() -> Rope,
 7325) -> Task<Result<Box<dyn ItemHandle>>> {
 7326    cx.spawn_in(window, async move |workspace, cx| {
 7327        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 7328        if !fs.is_file(path).await {
 7329            fs.create_file(path, Default::default()).await?;
 7330            fs.save(path, &default_content(), Default::default())
 7331                .await?;
 7332        }
 7333
 7334        let mut items = workspace
 7335            .update_in(cx, |workspace, window, cx| {
 7336                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 7337                    workspace.open_paths(
 7338                        vec![path.to_path_buf()],
 7339                        OpenOptions {
 7340                            visible: Some(OpenVisible::None),
 7341                            ..Default::default()
 7342                        },
 7343                        None,
 7344                        window,
 7345                        cx,
 7346                    )
 7347                })
 7348            })?
 7349            .await?
 7350            .await;
 7351
 7352        let item = items.pop().flatten();
 7353        item.with_context(|| format!("path {path:?} is not a file"))?
 7354    })
 7355}
 7356
 7357pub fn open_remote_project_with_new_connection(
 7358    window: WindowHandle<Workspace>,
 7359    connection_options: RemoteConnectionOptions,
 7360    cancel_rx: oneshot::Receiver<()>,
 7361    delegate: Arc<dyn RemoteClientDelegate>,
 7362    app_state: Arc<AppState>,
 7363    paths: Vec<PathBuf>,
 7364    cx: &mut App,
 7365) -> Task<Result<()>> {
 7366    cx.spawn(async move |cx| {
 7367        let (workspace_id, serialized_workspace) =
 7368            serialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 7369
 7370        let session = match cx
 7371            .update(|cx| {
 7372                remote::RemoteClient::new(
 7373                    ConnectionIdentifier::Workspace(workspace_id.0),
 7374                    connection_options,
 7375                    cancel_rx,
 7376                    delegate,
 7377                    cx,
 7378                )
 7379            })?
 7380            .await?
 7381        {
 7382            Some(result) => result,
 7383            None => return Ok(()),
 7384        };
 7385
 7386        let project = cx.update(|cx| {
 7387            project::Project::remote(
 7388                session,
 7389                app_state.client.clone(),
 7390                app_state.node_runtime.clone(),
 7391                app_state.user_store.clone(),
 7392                app_state.languages.clone(),
 7393                app_state.fs.clone(),
 7394                cx,
 7395            )
 7396        })?;
 7397
 7398        open_remote_project_inner(
 7399            project,
 7400            paths,
 7401            workspace_id,
 7402            serialized_workspace,
 7403            app_state,
 7404            window,
 7405            cx,
 7406        )
 7407        .await
 7408    })
 7409}
 7410
 7411pub fn open_remote_project_with_existing_connection(
 7412    connection_options: RemoteConnectionOptions,
 7413    project: Entity<Project>,
 7414    paths: Vec<PathBuf>,
 7415    app_state: Arc<AppState>,
 7416    window: WindowHandle<Workspace>,
 7417    cx: &mut AsyncApp,
 7418) -> Task<Result<()>> {
 7419    cx.spawn(async move |cx| {
 7420        let (workspace_id, serialized_workspace) =
 7421            serialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 7422
 7423        open_remote_project_inner(
 7424            project,
 7425            paths,
 7426            workspace_id,
 7427            serialized_workspace,
 7428            app_state,
 7429            window,
 7430            cx,
 7431        )
 7432        .await
 7433    })
 7434}
 7435
 7436async fn open_remote_project_inner(
 7437    project: Entity<Project>,
 7438    paths: Vec<PathBuf>,
 7439    workspace_id: WorkspaceId,
 7440    serialized_workspace: Option<SerializedWorkspace>,
 7441    app_state: Arc<AppState>,
 7442    window: WindowHandle<Workspace>,
 7443    cx: &mut AsyncApp,
 7444) -> Result<()> {
 7445    let toolchains = DB.toolchains(workspace_id).await?;
 7446    for (toolchain, worktree_id, path) in toolchains {
 7447        project
 7448            .update(cx, |this, cx| {
 7449                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 7450            })?
 7451            .await;
 7452    }
 7453    let mut project_paths_to_open = vec![];
 7454    let mut project_path_errors = vec![];
 7455
 7456    for path in paths {
 7457        let result = cx
 7458            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 7459            .await;
 7460        match result {
 7461            Ok((_, project_path)) => {
 7462                project_paths_to_open.push((path.clone(), Some(project_path)));
 7463            }
 7464            Err(error) => {
 7465                project_path_errors.push(error);
 7466            }
 7467        };
 7468    }
 7469
 7470    if project_paths_to_open.is_empty() {
 7471        return Err(project_path_errors.pop().context("no paths given")?);
 7472    }
 7473
 7474    if let Some(detach_session_task) = window
 7475        .update(cx, |_workspace, window, cx| {
 7476            cx.spawn_in(window, async move |this, cx| {
 7477                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 7478            })
 7479        })
 7480        .ok()
 7481    {
 7482        detach_session_task.await.ok();
 7483    }
 7484
 7485    cx.update_window(window.into(), |_, window, cx| {
 7486        window.replace_root(cx, |window, cx| {
 7487            telemetry::event!("SSH Project Opened");
 7488
 7489            let mut workspace =
 7490                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 7491            workspace.update_history(cx);
 7492
 7493            if let Some(ref serialized) = serialized_workspace {
 7494                workspace.centered_layout = serialized.centered_layout;
 7495            }
 7496
 7497            workspace
 7498        });
 7499    })?;
 7500
 7501    window
 7502        .update(cx, |_, window, cx| {
 7503            window.activate_window();
 7504            open_items(serialized_workspace, project_paths_to_open, window, cx)
 7505        })?
 7506        .await?;
 7507
 7508    window.update(cx, |workspace, _, cx| {
 7509        for error in project_path_errors {
 7510            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 7511                if let Some(path) = error.error_tag("path") {
 7512                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 7513                }
 7514            } else {
 7515                workspace.show_error(&error, cx)
 7516            }
 7517        }
 7518    })?;
 7519
 7520    Ok(())
 7521}
 7522
 7523fn serialize_remote_project(
 7524    connection_options: RemoteConnectionOptions,
 7525    paths: Vec<PathBuf>,
 7526    cx: &AsyncApp,
 7527) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 7528    cx.background_spawn(async move {
 7529        let remote_connection_id = persistence::DB
 7530            .get_or_create_remote_connection(connection_options)
 7531            .await?;
 7532
 7533        let serialized_workspace =
 7534            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 7535
 7536        let workspace_id = if let Some(workspace_id) =
 7537            serialized_workspace.as_ref().map(|workspace| workspace.id)
 7538        {
 7539            workspace_id
 7540        } else {
 7541            persistence::DB.next_id().await?
 7542        };
 7543
 7544        Ok((workspace_id, serialized_workspace))
 7545    })
 7546}
 7547
 7548pub fn join_in_room_project(
 7549    project_id: u64,
 7550    follow_user_id: u64,
 7551    app_state: Arc<AppState>,
 7552    cx: &mut App,
 7553) -> Task<Result<()>> {
 7554    let windows = cx.windows();
 7555    cx.spawn(async move |cx| {
 7556        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 7557            window_handle
 7558                .downcast::<Workspace>()
 7559                .and_then(|window_handle| {
 7560                    window_handle
 7561                        .update(cx, |workspace, _window, cx| {
 7562                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 7563                                Some(window_handle)
 7564                            } else {
 7565                                None
 7566                            }
 7567                        })
 7568                        .unwrap_or(None)
 7569                })
 7570        });
 7571
 7572        let workspace = if let Some(existing_workspace) = existing_workspace {
 7573            existing_workspace
 7574        } else {
 7575            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 7576            let room = active_call
 7577                .read_with(cx, |call, _| call.room().cloned())?
 7578                .context("not in a call")?;
 7579            let project = room
 7580                .update(cx, |room, cx| {
 7581                    room.join_project(
 7582                        project_id,
 7583                        app_state.languages.clone(),
 7584                        app_state.fs.clone(),
 7585                        cx,
 7586                    )
 7587                })?
 7588                .await?;
 7589
 7590            let window_bounds_override = window_bounds_env_override();
 7591            cx.update(|cx| {
 7592                let mut options = (app_state.build_window_options)(None, cx);
 7593                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 7594                cx.open_window(options, |window, cx| {
 7595                    cx.new(|cx| {
 7596                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 7597                    })
 7598                })
 7599            })??
 7600        };
 7601
 7602        workspace.update(cx, |workspace, window, cx| {
 7603            cx.activate(true);
 7604            window.activate_window();
 7605
 7606            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 7607                let follow_peer_id = room
 7608                    .read(cx)
 7609                    .remote_participants()
 7610                    .iter()
 7611                    .find(|(_, participant)| participant.user.id == follow_user_id)
 7612                    .map(|(_, p)| p.peer_id)
 7613                    .or_else(|| {
 7614                        // If we couldn't follow the given user, follow the host instead.
 7615                        let collaborator = workspace
 7616                            .project()
 7617                            .read(cx)
 7618                            .collaborators()
 7619                            .values()
 7620                            .find(|collaborator| collaborator.is_host)?;
 7621                        Some(collaborator.peer_id)
 7622                    });
 7623
 7624                if let Some(follow_peer_id) = follow_peer_id {
 7625                    workspace.follow(follow_peer_id, window, cx);
 7626                }
 7627            }
 7628        })?;
 7629
 7630        anyhow::Ok(())
 7631    })
 7632}
 7633
 7634pub fn reload(cx: &mut App) {
 7635    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 7636    let mut workspace_windows = cx
 7637        .windows()
 7638        .into_iter()
 7639        .filter_map(|window| window.downcast::<Workspace>())
 7640        .collect::<Vec<_>>();
 7641
 7642    // If multiple windows have unsaved changes, and need a save prompt,
 7643    // prompt in the active window before switching to a different window.
 7644    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 7645
 7646    let mut prompt = None;
 7647    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 7648        prompt = window
 7649            .update(cx, |_, window, cx| {
 7650                window.prompt(
 7651                    PromptLevel::Info,
 7652                    "Are you sure you want to restart?",
 7653                    None,
 7654                    &["Restart", "Cancel"],
 7655                    cx,
 7656                )
 7657            })
 7658            .ok();
 7659    }
 7660
 7661    cx.spawn(async move |cx| {
 7662        if let Some(prompt) = prompt {
 7663            let answer = prompt.await?;
 7664            if answer != 0 {
 7665                return Ok(());
 7666            }
 7667        }
 7668
 7669        // If the user cancels any save prompt, then keep the app open.
 7670        for window in workspace_windows {
 7671            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 7672                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 7673            }) && !should_close.await?
 7674            {
 7675                return Ok(());
 7676            }
 7677        }
 7678        cx.update(|cx| cx.restart())
 7679    })
 7680    .detach_and_log_err(cx);
 7681}
 7682
 7683fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 7684    let mut parts = value.split(',');
 7685    let x: usize = parts.next()?.parse().ok()?;
 7686    let y: usize = parts.next()?.parse().ok()?;
 7687    Some(point(px(x as f32), px(y as f32)))
 7688}
 7689
 7690fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 7691    let mut parts = value.split(',');
 7692    let width: usize = parts.next()?.parse().ok()?;
 7693    let height: usize = parts.next()?.parse().ok()?;
 7694    Some(size(px(width as f32), px(height as f32)))
 7695}
 7696
 7697/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 7698pub fn client_side_decorations(
 7699    element: impl IntoElement,
 7700    window: &mut Window,
 7701    cx: &mut App,
 7702) -> Stateful<Div> {
 7703    const BORDER_SIZE: Pixels = px(1.0);
 7704    let decorations = window.window_decorations();
 7705
 7706    match decorations {
 7707        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 7708        Decorations::Server => window.set_client_inset(px(0.0)),
 7709    }
 7710
 7711    struct GlobalResizeEdge(ResizeEdge);
 7712    impl Global for GlobalResizeEdge {}
 7713
 7714    div()
 7715        .id("window-backdrop")
 7716        .bg(transparent_black())
 7717        .map(|div| match decorations {
 7718            Decorations::Server => div,
 7719            Decorations::Client { tiling, .. } => div
 7720                .when(!(tiling.top || tiling.right), |div| {
 7721                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7722                })
 7723                .when(!(tiling.top || tiling.left), |div| {
 7724                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7725                })
 7726                .when(!(tiling.bottom || tiling.right), |div| {
 7727                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7728                })
 7729                .when(!(tiling.bottom || tiling.left), |div| {
 7730                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7731                })
 7732                .when(!tiling.top, |div| {
 7733                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7734                })
 7735                .when(!tiling.bottom, |div| {
 7736                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7737                })
 7738                .when(!tiling.left, |div| {
 7739                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7740                })
 7741                .when(!tiling.right, |div| {
 7742                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7743                })
 7744                .on_mouse_move(move |e, window, cx| {
 7745                    let size = window.window_bounds().get_bounds().size;
 7746                    let pos = e.position;
 7747
 7748                    let new_edge =
 7749                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 7750
 7751                    let edge = cx.try_global::<GlobalResizeEdge>();
 7752                    if new_edge != edge.map(|edge| edge.0) {
 7753                        window
 7754                            .window_handle()
 7755                            .update(cx, |workspace, _, cx| {
 7756                                cx.notify(workspace.entity_id());
 7757                            })
 7758                            .ok();
 7759                    }
 7760                })
 7761                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 7762                    let size = window.window_bounds().get_bounds().size;
 7763                    let pos = e.position;
 7764
 7765                    let edge = match resize_edge(
 7766                        pos,
 7767                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 7768                        size,
 7769                        tiling,
 7770                    ) {
 7771                        Some(value) => value,
 7772                        None => return,
 7773                    };
 7774
 7775                    window.start_window_resize(edge);
 7776                }),
 7777        })
 7778        .size_full()
 7779        .child(
 7780            div()
 7781                .cursor(CursorStyle::Arrow)
 7782                .map(|div| match decorations {
 7783                    Decorations::Server => div,
 7784                    Decorations::Client { tiling } => div
 7785                        .border_color(cx.theme().colors().border)
 7786                        .when(!(tiling.top || tiling.right), |div| {
 7787                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7788                        })
 7789                        .when(!(tiling.top || tiling.left), |div| {
 7790                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7791                        })
 7792                        .when(!(tiling.bottom || tiling.right), |div| {
 7793                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7794                        })
 7795                        .when(!(tiling.bottom || tiling.left), |div| {
 7796                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7797                        })
 7798                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 7799                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 7800                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 7801                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 7802                        .when(!tiling.is_tiled(), |div| {
 7803                            div.shadow(vec![gpui::BoxShadow {
 7804                                color: Hsla {
 7805                                    h: 0.,
 7806                                    s: 0.,
 7807                                    l: 0.,
 7808                                    a: 0.4,
 7809                                },
 7810                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 7811                                spread_radius: px(0.),
 7812                                offset: point(px(0.0), px(0.0)),
 7813                            }])
 7814                        }),
 7815                })
 7816                .on_mouse_move(|_e, _, cx| {
 7817                    cx.stop_propagation();
 7818                })
 7819                .size_full()
 7820                .child(element),
 7821        )
 7822        .map(|div| match decorations {
 7823            Decorations::Server => div,
 7824            Decorations::Client { tiling, .. } => div.child(
 7825                canvas(
 7826                    |_bounds, window, _| {
 7827                        window.insert_hitbox(
 7828                            Bounds::new(
 7829                                point(px(0.0), px(0.0)),
 7830                                window.window_bounds().get_bounds().size,
 7831                            ),
 7832                            HitboxBehavior::Normal,
 7833                        )
 7834                    },
 7835                    move |_bounds, hitbox, window, cx| {
 7836                        let mouse = window.mouse_position();
 7837                        let size = window.window_bounds().get_bounds().size;
 7838                        let Some(edge) =
 7839                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 7840                        else {
 7841                            return;
 7842                        };
 7843                        cx.set_global(GlobalResizeEdge(edge));
 7844                        window.set_cursor_style(
 7845                            match edge {
 7846                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 7847                                ResizeEdge::Left | ResizeEdge::Right => {
 7848                                    CursorStyle::ResizeLeftRight
 7849                                }
 7850                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 7851                                    CursorStyle::ResizeUpLeftDownRight
 7852                                }
 7853                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 7854                                    CursorStyle::ResizeUpRightDownLeft
 7855                                }
 7856                            },
 7857                            &hitbox,
 7858                        );
 7859                    },
 7860                )
 7861                .size_full()
 7862                .absolute(),
 7863            ),
 7864        })
 7865}
 7866
 7867fn resize_edge(
 7868    pos: Point<Pixels>,
 7869    shadow_size: Pixels,
 7870    window_size: Size<Pixels>,
 7871    tiling: Tiling,
 7872) -> Option<ResizeEdge> {
 7873    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 7874    if bounds.contains(&pos) {
 7875        return None;
 7876    }
 7877
 7878    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 7879    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 7880    if !tiling.top && top_left_bounds.contains(&pos) {
 7881        return Some(ResizeEdge::TopLeft);
 7882    }
 7883
 7884    let top_right_bounds = Bounds::new(
 7885        Point::new(window_size.width - corner_size.width, px(0.)),
 7886        corner_size,
 7887    );
 7888    if !tiling.top && top_right_bounds.contains(&pos) {
 7889        return Some(ResizeEdge::TopRight);
 7890    }
 7891
 7892    let bottom_left_bounds = Bounds::new(
 7893        Point::new(px(0.), window_size.height - corner_size.height),
 7894        corner_size,
 7895    );
 7896    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 7897        return Some(ResizeEdge::BottomLeft);
 7898    }
 7899
 7900    let bottom_right_bounds = Bounds::new(
 7901        Point::new(
 7902            window_size.width - corner_size.width,
 7903            window_size.height - corner_size.height,
 7904        ),
 7905        corner_size,
 7906    );
 7907    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 7908        return Some(ResizeEdge::BottomRight);
 7909    }
 7910
 7911    if !tiling.top && pos.y < shadow_size {
 7912        Some(ResizeEdge::Top)
 7913    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 7914        Some(ResizeEdge::Bottom)
 7915    } else if !tiling.left && pos.x < shadow_size {
 7916        Some(ResizeEdge::Left)
 7917    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 7918        Some(ResizeEdge::Right)
 7919    } else {
 7920        None
 7921    }
 7922}
 7923
 7924fn join_pane_into_active(
 7925    active_pane: &Entity<Pane>,
 7926    pane: &Entity<Pane>,
 7927    window: &mut Window,
 7928    cx: &mut App,
 7929) {
 7930    if pane == active_pane {
 7931    } else if pane.read(cx).items_len() == 0 {
 7932        pane.update(cx, |_, cx| {
 7933            cx.emit(pane::Event::Remove {
 7934                focus_on_pane: None,
 7935            });
 7936        })
 7937    } else {
 7938        move_all_items(pane, active_pane, window, cx);
 7939    }
 7940}
 7941
 7942fn move_all_items(
 7943    from_pane: &Entity<Pane>,
 7944    to_pane: &Entity<Pane>,
 7945    window: &mut Window,
 7946    cx: &mut App,
 7947) {
 7948    let destination_is_different = from_pane != to_pane;
 7949    let mut moved_items = 0;
 7950    for (item_ix, item_handle) in from_pane
 7951        .read(cx)
 7952        .items()
 7953        .enumerate()
 7954        .map(|(ix, item)| (ix, item.clone()))
 7955        .collect::<Vec<_>>()
 7956    {
 7957        let ix = item_ix - moved_items;
 7958        if destination_is_different {
 7959            // Close item from previous pane
 7960            from_pane.update(cx, |source, cx| {
 7961                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 7962            });
 7963            moved_items += 1;
 7964        }
 7965
 7966        // This automatically removes duplicate items in the pane
 7967        to_pane.update(cx, |destination, cx| {
 7968            destination.add_item(item_handle, true, true, None, window, cx);
 7969            window.focus(&destination.focus_handle(cx))
 7970        });
 7971    }
 7972}
 7973
 7974pub fn move_item(
 7975    source: &Entity<Pane>,
 7976    destination: &Entity<Pane>,
 7977    item_id_to_move: EntityId,
 7978    destination_index: usize,
 7979    activate: bool,
 7980    window: &mut Window,
 7981    cx: &mut App,
 7982) {
 7983    let Some((item_ix, item_handle)) = source
 7984        .read(cx)
 7985        .items()
 7986        .enumerate()
 7987        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 7988        .map(|(ix, item)| (ix, item.clone()))
 7989    else {
 7990        // Tab was closed during drag
 7991        return;
 7992    };
 7993
 7994    if source != destination {
 7995        // Close item from previous pane
 7996        source.update(cx, |source, cx| {
 7997            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 7998        });
 7999    }
 8000
 8001    // This automatically removes duplicate items in the pane
 8002    destination.update(cx, |destination, cx| {
 8003        destination.add_item_inner(
 8004            item_handle,
 8005            activate,
 8006            activate,
 8007            activate,
 8008            Some(destination_index),
 8009            window,
 8010            cx,
 8011        );
 8012        if activate {
 8013            window.focus(&destination.focus_handle(cx))
 8014        }
 8015    });
 8016}
 8017
 8018pub fn move_active_item(
 8019    source: &Entity<Pane>,
 8020    destination: &Entity<Pane>,
 8021    focus_destination: bool,
 8022    close_if_empty: bool,
 8023    window: &mut Window,
 8024    cx: &mut App,
 8025) {
 8026    if source == destination {
 8027        return;
 8028    }
 8029    let Some(active_item) = source.read(cx).active_item() else {
 8030        return;
 8031    };
 8032    source.update(cx, |source_pane, cx| {
 8033        let item_id = active_item.item_id();
 8034        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8035        destination.update(cx, |target_pane, cx| {
 8036            target_pane.add_item(
 8037                active_item,
 8038                focus_destination,
 8039                focus_destination,
 8040                Some(target_pane.items_len()),
 8041                window,
 8042                cx,
 8043            );
 8044        });
 8045    });
 8046}
 8047
 8048pub fn clone_active_item(
 8049    workspace_id: Option<WorkspaceId>,
 8050    source: &Entity<Pane>,
 8051    destination: &Entity<Pane>,
 8052    focus_destination: bool,
 8053    window: &mut Window,
 8054    cx: &mut App,
 8055) {
 8056    if source == destination {
 8057        return;
 8058    }
 8059    let Some(active_item) = source.read(cx).active_item() else {
 8060        return;
 8061    };
 8062    destination.update(cx, |target_pane, cx| {
 8063        let Some(clone) = active_item.clone_on_split(workspace_id, window, cx) else {
 8064            return;
 8065        };
 8066        target_pane.add_item(
 8067            clone,
 8068            focus_destination,
 8069            focus_destination,
 8070            Some(target_pane.items_len()),
 8071            window,
 8072            cx,
 8073        );
 8074    });
 8075}
 8076
 8077#[derive(Debug)]
 8078pub struct WorkspacePosition {
 8079    pub window_bounds: Option<WindowBounds>,
 8080    pub display: Option<Uuid>,
 8081    pub centered_layout: bool,
 8082}
 8083
 8084pub fn remote_workspace_position_from_db(
 8085    connection_options: RemoteConnectionOptions,
 8086    paths_to_open: &[PathBuf],
 8087    cx: &App,
 8088) -> Task<Result<WorkspacePosition>> {
 8089    let paths = paths_to_open.to_vec();
 8090
 8091    cx.background_spawn(async move {
 8092        let remote_connection_id = persistence::DB
 8093            .get_or_create_remote_connection(connection_options)
 8094            .await
 8095            .context("fetching serialized ssh project")?;
 8096        let serialized_workspace =
 8097            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8098
 8099        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8100            (Some(WindowBounds::Windowed(bounds)), None)
 8101        } else {
 8102            let restorable_bounds = serialized_workspace
 8103                .as_ref()
 8104                .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 8105                .or_else(|| {
 8106                    let (display, window_bounds) = DB.last_window().log_err()?;
 8107                    Some((display?, window_bounds?))
 8108                });
 8109
 8110            if let Some((serialized_display, serialized_status)) = restorable_bounds {
 8111                (Some(serialized_status.0), Some(serialized_display))
 8112            } else {
 8113                (None, None)
 8114            }
 8115        };
 8116
 8117        let centered_layout = serialized_workspace
 8118            .as_ref()
 8119            .map(|w| w.centered_layout)
 8120            .unwrap_or(false);
 8121
 8122        Ok(WorkspacePosition {
 8123            window_bounds,
 8124            display,
 8125            centered_layout,
 8126        })
 8127    })
 8128}
 8129
 8130pub fn with_active_or_new_workspace(
 8131    cx: &mut App,
 8132    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8133) {
 8134    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8135        Some(workspace) => {
 8136            cx.defer(move |cx| {
 8137                workspace
 8138                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8139                    .log_err();
 8140            });
 8141        }
 8142        None => {
 8143            let app_state = AppState::global(cx);
 8144            if let Some(app_state) = app_state.upgrade() {
 8145                open_new(
 8146                    OpenOptions::default(),
 8147                    app_state,
 8148                    cx,
 8149                    move |workspace, window, cx| f(workspace, window, cx),
 8150                )
 8151                .detach_and_log_err(cx);
 8152            }
 8153        }
 8154    }
 8155}
 8156
 8157#[cfg(test)]
 8158mod tests {
 8159    use std::{cell::RefCell, rc::Rc};
 8160
 8161    use super::*;
 8162    use crate::{
 8163        dock::{PanelEvent, test::TestPanel},
 8164        item::{
 8165            ItemEvent,
 8166            test::{TestItem, TestProjectItem},
 8167        },
 8168    };
 8169    use fs::FakeFs;
 8170    use gpui::{
 8171        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8172        UpdateGlobal, VisualTestContext, px,
 8173    };
 8174    use project::{Project, ProjectEntryId};
 8175    use serde_json::json;
 8176    use settings::SettingsStore;
 8177
 8178    #[gpui::test]
 8179    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8180        init_test(cx);
 8181
 8182        let fs = FakeFs::new(cx.executor());
 8183        let project = Project::test(fs, [], cx).await;
 8184        let (workspace, cx) =
 8185            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8186
 8187        // Adding an item with no ambiguity renders the tab without detail.
 8188        let item1 = cx.new(|cx| {
 8189            let mut item = TestItem::new(cx);
 8190            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 8191            item
 8192        });
 8193        workspace.update_in(cx, |workspace, window, cx| {
 8194            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8195        });
 8196        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 8197
 8198        // Adding an item that creates ambiguity increases the level of detail on
 8199        // both tabs.
 8200        let item2 = cx.new_window_entity(|_window, cx| {
 8201            let mut item = TestItem::new(cx);
 8202            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8203            item
 8204        });
 8205        workspace.update_in(cx, |workspace, window, cx| {
 8206            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8207        });
 8208        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8209        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8210
 8211        // Adding an item that creates ambiguity increases the level of detail only
 8212        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 8213        // we stop at the highest detail available.
 8214        let item3 = cx.new(|cx| {
 8215            let mut item = TestItem::new(cx);
 8216            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8217            item
 8218        });
 8219        workspace.update_in(cx, |workspace, window, cx| {
 8220            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8221        });
 8222        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8223        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8224        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8225    }
 8226
 8227    #[gpui::test]
 8228    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 8229        init_test(cx);
 8230
 8231        let fs = FakeFs::new(cx.executor());
 8232        fs.insert_tree(
 8233            "/root1",
 8234            json!({
 8235                "one.txt": "",
 8236                "two.txt": "",
 8237            }),
 8238        )
 8239        .await;
 8240        fs.insert_tree(
 8241            "/root2",
 8242            json!({
 8243                "three.txt": "",
 8244            }),
 8245        )
 8246        .await;
 8247
 8248        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 8249        let (workspace, cx) =
 8250            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8251        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8252        let worktree_id = project.update(cx, |project, cx| {
 8253            project.worktrees(cx).next().unwrap().read(cx).id()
 8254        });
 8255
 8256        let item1 = cx.new(|cx| {
 8257            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 8258        });
 8259        let item2 = cx.new(|cx| {
 8260            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 8261        });
 8262
 8263        // Add an item to an empty pane
 8264        workspace.update_in(cx, |workspace, window, cx| {
 8265            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 8266        });
 8267        project.update(cx, |project, cx| {
 8268            assert_eq!(
 8269                project.active_entry(),
 8270                project
 8271                    .entry_for_path(&(worktree_id, "one.txt").into(), cx)
 8272                    .map(|e| e.id)
 8273            );
 8274        });
 8275        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8276
 8277        // Add a second item to a non-empty pane
 8278        workspace.update_in(cx, |workspace, window, cx| {
 8279            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 8280        });
 8281        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 8282        project.update(cx, |project, cx| {
 8283            assert_eq!(
 8284                project.active_entry(),
 8285                project
 8286                    .entry_for_path(&(worktree_id, "two.txt").into(), cx)
 8287                    .map(|e| e.id)
 8288            );
 8289        });
 8290
 8291        // Close the active item
 8292        pane.update_in(cx, |pane, window, cx| {
 8293            pane.close_active_item(&Default::default(), window, cx)
 8294        })
 8295        .await
 8296        .unwrap();
 8297        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8298        project.update(cx, |project, cx| {
 8299            assert_eq!(
 8300                project.active_entry(),
 8301                project
 8302                    .entry_for_path(&(worktree_id, "one.txt").into(), cx)
 8303                    .map(|e| e.id)
 8304            );
 8305        });
 8306
 8307        // Add a project folder
 8308        project
 8309            .update(cx, |project, cx| {
 8310                project.find_or_create_worktree("root2", true, cx)
 8311            })
 8312            .await
 8313            .unwrap();
 8314        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 8315
 8316        // Remove a project folder
 8317        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 8318        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 8319    }
 8320
 8321    #[gpui::test]
 8322    async fn test_close_window(cx: &mut TestAppContext) {
 8323        init_test(cx);
 8324
 8325        let fs = FakeFs::new(cx.executor());
 8326        fs.insert_tree("/root", json!({ "one": "" })).await;
 8327
 8328        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8329        let (workspace, cx) =
 8330            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8331
 8332        // When there are no dirty items, there's nothing to do.
 8333        let item1 = cx.new(TestItem::new);
 8334        workspace.update_in(cx, |w, window, cx| {
 8335            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 8336        });
 8337        let task = workspace.update_in(cx, |w, window, cx| {
 8338            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8339        });
 8340        assert!(task.await.unwrap());
 8341
 8342        // When there are dirty untitled items, prompt to save each one. If the user
 8343        // cancels any prompt, then abort.
 8344        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 8345        let item3 = cx.new(|cx| {
 8346            TestItem::new(cx)
 8347                .with_dirty(true)
 8348                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8349        });
 8350        workspace.update_in(cx, |w, window, cx| {
 8351            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8352            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8353        });
 8354        let task = workspace.update_in(cx, |w, window, cx| {
 8355            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8356        });
 8357        cx.executor().run_until_parked();
 8358        cx.simulate_prompt_answer("Cancel"); // cancel save all
 8359        cx.executor().run_until_parked();
 8360        assert!(!cx.has_pending_prompt());
 8361        assert!(!task.await.unwrap());
 8362    }
 8363
 8364    #[gpui::test]
 8365    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 8366        init_test(cx);
 8367
 8368        // Register TestItem as a serializable item
 8369        cx.update(|cx| {
 8370            register_serializable_item::<TestItem>(cx);
 8371        });
 8372
 8373        let fs = FakeFs::new(cx.executor());
 8374        fs.insert_tree("/root", json!({ "one": "" })).await;
 8375
 8376        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8377        let (workspace, cx) =
 8378            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8379
 8380        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 8381        let item1 = cx.new(|cx| {
 8382            TestItem::new(cx)
 8383                .with_dirty(true)
 8384                .with_serialize(|| Some(Task::ready(Ok(()))))
 8385        });
 8386        let item2 = cx.new(|cx| {
 8387            TestItem::new(cx)
 8388                .with_dirty(true)
 8389                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8390                .with_serialize(|| Some(Task::ready(Ok(()))))
 8391        });
 8392        workspace.update_in(cx, |w, window, cx| {
 8393            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8394            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8395        });
 8396        let task = workspace.update_in(cx, |w, window, cx| {
 8397            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8398        });
 8399        assert!(task.await.unwrap());
 8400    }
 8401
 8402    #[gpui::test]
 8403    async fn test_close_pane_items(cx: &mut TestAppContext) {
 8404        init_test(cx);
 8405
 8406        let fs = FakeFs::new(cx.executor());
 8407
 8408        let project = Project::test(fs, None, cx).await;
 8409        let (workspace, cx) =
 8410            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8411
 8412        let item1 = cx.new(|cx| {
 8413            TestItem::new(cx)
 8414                .with_dirty(true)
 8415                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 8416        });
 8417        let item2 = cx.new(|cx| {
 8418            TestItem::new(cx)
 8419                .with_dirty(true)
 8420                .with_conflict(true)
 8421                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 8422        });
 8423        let item3 = cx.new(|cx| {
 8424            TestItem::new(cx)
 8425                .with_dirty(true)
 8426                .with_conflict(true)
 8427                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 8428        });
 8429        let item4 = cx.new(|cx| {
 8430            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 8431                let project_item = TestProjectItem::new_untitled(cx);
 8432                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8433                project_item
 8434            }])
 8435        });
 8436        let pane = workspace.update_in(cx, |workspace, window, cx| {
 8437            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8438            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8439            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8440            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 8441            workspace.active_pane().clone()
 8442        });
 8443
 8444        let close_items = pane.update_in(cx, |pane, window, cx| {
 8445            pane.activate_item(1, true, true, window, cx);
 8446            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8447            let item1_id = item1.item_id();
 8448            let item3_id = item3.item_id();
 8449            let item4_id = item4.item_id();
 8450            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 8451                [item1_id, item3_id, item4_id].contains(&id)
 8452            })
 8453        });
 8454        cx.executor().run_until_parked();
 8455
 8456        assert!(cx.has_pending_prompt());
 8457        cx.simulate_prompt_answer("Save all");
 8458
 8459        cx.executor().run_until_parked();
 8460
 8461        // Item 1 is saved. There's a prompt to save item 3.
 8462        pane.update(cx, |pane, cx| {
 8463            assert_eq!(item1.read(cx).save_count, 1);
 8464            assert_eq!(item1.read(cx).save_as_count, 0);
 8465            assert_eq!(item1.read(cx).reload_count, 0);
 8466            assert_eq!(pane.items_len(), 3);
 8467            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 8468        });
 8469        assert!(cx.has_pending_prompt());
 8470
 8471        // Cancel saving item 3.
 8472        cx.simulate_prompt_answer("Discard");
 8473        cx.executor().run_until_parked();
 8474
 8475        // Item 3 is reloaded. There's a prompt to save item 4.
 8476        pane.update(cx, |pane, cx| {
 8477            assert_eq!(item3.read(cx).save_count, 0);
 8478            assert_eq!(item3.read(cx).save_as_count, 0);
 8479            assert_eq!(item3.read(cx).reload_count, 1);
 8480            assert_eq!(pane.items_len(), 2);
 8481            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 8482        });
 8483
 8484        // There's a prompt for a path for item 4.
 8485        cx.simulate_new_path_selection(|_| Some(Default::default()));
 8486        close_items.await.unwrap();
 8487
 8488        // The requested items are closed.
 8489        pane.update(cx, |pane, cx| {
 8490            assert_eq!(item4.read(cx).save_count, 0);
 8491            assert_eq!(item4.read(cx).save_as_count, 1);
 8492            assert_eq!(item4.read(cx).reload_count, 0);
 8493            assert_eq!(pane.items_len(), 1);
 8494            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8495        });
 8496    }
 8497
 8498    #[gpui::test]
 8499    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 8500        init_test(cx);
 8501
 8502        let fs = FakeFs::new(cx.executor());
 8503        let project = Project::test(fs, [], cx).await;
 8504        let (workspace, cx) =
 8505            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8506
 8507        // Create several workspace items with single project entries, and two
 8508        // workspace items with multiple project entries.
 8509        let single_entry_items = (0..=4)
 8510            .map(|project_entry_id| {
 8511                cx.new(|cx| {
 8512                    TestItem::new(cx)
 8513                        .with_dirty(true)
 8514                        .with_project_items(&[dirty_project_item(
 8515                            project_entry_id,
 8516                            &format!("{project_entry_id}.txt"),
 8517                            cx,
 8518                        )])
 8519                })
 8520            })
 8521            .collect::<Vec<_>>();
 8522        let item_2_3 = cx.new(|cx| {
 8523            TestItem::new(cx)
 8524                .with_dirty(true)
 8525                .with_singleton(false)
 8526                .with_project_items(&[
 8527                    single_entry_items[2].read(cx).project_items[0].clone(),
 8528                    single_entry_items[3].read(cx).project_items[0].clone(),
 8529                ])
 8530        });
 8531        let item_3_4 = cx.new(|cx| {
 8532            TestItem::new(cx)
 8533                .with_dirty(true)
 8534                .with_singleton(false)
 8535                .with_project_items(&[
 8536                    single_entry_items[3].read(cx).project_items[0].clone(),
 8537                    single_entry_items[4].read(cx).project_items[0].clone(),
 8538                ])
 8539        });
 8540
 8541        // Create two panes that contain the following project entries:
 8542        //   left pane:
 8543        //     multi-entry items:   (2, 3)
 8544        //     single-entry items:  0, 2, 3, 4
 8545        //   right pane:
 8546        //     single-entry items:  4, 1
 8547        //     multi-entry items:   (3, 4)
 8548        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 8549            let left_pane = workspace.active_pane().clone();
 8550            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 8551            workspace.add_item_to_active_pane(
 8552                single_entry_items[0].boxed_clone(),
 8553                None,
 8554                true,
 8555                window,
 8556                cx,
 8557            );
 8558            workspace.add_item_to_active_pane(
 8559                single_entry_items[2].boxed_clone(),
 8560                None,
 8561                true,
 8562                window,
 8563                cx,
 8564            );
 8565            workspace.add_item_to_active_pane(
 8566                single_entry_items[3].boxed_clone(),
 8567                None,
 8568                true,
 8569                window,
 8570                cx,
 8571            );
 8572            workspace.add_item_to_active_pane(
 8573                single_entry_items[4].boxed_clone(),
 8574                None,
 8575                true,
 8576                window,
 8577                cx,
 8578            );
 8579
 8580            let right_pane = workspace
 8581                .split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx)
 8582                .unwrap();
 8583
 8584            right_pane.update(cx, |pane, cx| {
 8585                pane.add_item(
 8586                    single_entry_items[1].boxed_clone(),
 8587                    true,
 8588                    true,
 8589                    None,
 8590                    window,
 8591                    cx,
 8592                );
 8593                pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 8594            });
 8595
 8596            (left_pane, right_pane)
 8597        });
 8598
 8599        cx.focus(&right_pane);
 8600
 8601        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 8602            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8603                .unwrap()
 8604        });
 8605        cx.executor().run_until_parked();
 8606
 8607        let msg = cx.pending_prompt().unwrap().0;
 8608        assert!(msg.contains("1.txt"));
 8609        assert!(!msg.contains("2.txt"));
 8610        assert!(!msg.contains("3.txt"));
 8611        assert!(!msg.contains("4.txt"));
 8612
 8613        cx.simulate_prompt_answer("Cancel");
 8614        close.await;
 8615
 8616        left_pane
 8617            .update_in(cx, |left_pane, window, cx| {
 8618                left_pane.close_item_by_id(
 8619                    single_entry_items[3].entity_id(),
 8620                    SaveIntent::Skip,
 8621                    window,
 8622                    cx,
 8623                )
 8624            })
 8625            .await
 8626            .unwrap();
 8627
 8628        close = right_pane.update_in(cx, |pane, window, cx| {
 8629            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8630                .unwrap()
 8631        });
 8632        cx.executor().run_until_parked();
 8633
 8634        let details = cx.pending_prompt().unwrap().1;
 8635        assert!(details.contains("1.txt"));
 8636        assert!(!details.contains("2.txt"));
 8637        assert!(details.contains("3.txt"));
 8638        // ideally this assertion could be made, but today we can only
 8639        // save whole items not project items, so the orphaned item 3 causes
 8640        // 4 to be saved too.
 8641        // assert!(!details.contains("4.txt"));
 8642
 8643        cx.simulate_prompt_answer("Save all");
 8644
 8645        cx.executor().run_until_parked();
 8646        close.await;
 8647        right_pane.read_with(cx, |pane, _| {
 8648            assert_eq!(pane.items_len(), 0);
 8649        });
 8650    }
 8651
 8652    #[gpui::test]
 8653    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 8654        init_test(cx);
 8655
 8656        let fs = FakeFs::new(cx.executor());
 8657        let project = Project::test(fs, [], cx).await;
 8658        let (workspace, cx) =
 8659            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8660        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8661
 8662        let item = cx.new(|cx| {
 8663            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8664        });
 8665        let item_id = item.entity_id();
 8666        workspace.update_in(cx, |workspace, window, cx| {
 8667            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8668        });
 8669
 8670        // Autosave on window change.
 8671        item.update(cx, |item, cx| {
 8672            SettingsStore::update_global(cx, |settings, cx| {
 8673                settings.update_user_settings(cx, |settings| {
 8674                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 8675                })
 8676            });
 8677            item.is_dirty = true;
 8678        });
 8679
 8680        // Deactivating the window saves the file.
 8681        cx.deactivate_window();
 8682        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8683
 8684        // Re-activating the window doesn't save the file.
 8685        cx.update(|window, _| window.activate_window());
 8686        cx.executor().run_until_parked();
 8687        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8688
 8689        // Autosave on focus change.
 8690        item.update_in(cx, |item, window, cx| {
 8691            cx.focus_self(window);
 8692            SettingsStore::update_global(cx, |settings, cx| {
 8693                settings.update_user_settings(cx, |settings| {
 8694                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 8695                })
 8696            });
 8697            item.is_dirty = true;
 8698        });
 8699        // Blurring the item saves the file.
 8700        item.update_in(cx, |_, window, _| window.blur());
 8701        cx.executor().run_until_parked();
 8702        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 8703
 8704        // Deactivating the window still saves the file.
 8705        item.update_in(cx, |item, window, cx| {
 8706            cx.focus_self(window);
 8707            item.is_dirty = true;
 8708        });
 8709        cx.deactivate_window();
 8710        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 8711
 8712        // Autosave after delay.
 8713        item.update(cx, |item, cx| {
 8714            SettingsStore::update_global(cx, |settings, cx| {
 8715                settings.update_user_settings(cx, |settings| {
 8716                    settings.workspace.autosave =
 8717                        Some(AutosaveSetting::AfterDelay { milliseconds: 500 });
 8718                })
 8719            });
 8720            item.is_dirty = true;
 8721            cx.emit(ItemEvent::Edit);
 8722        });
 8723
 8724        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 8725        cx.executor().advance_clock(Duration::from_millis(250));
 8726        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 8727
 8728        // After delay expires, the file is saved.
 8729        cx.executor().advance_clock(Duration::from_millis(250));
 8730        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 8731
 8732        // Autosave after delay, should save earlier than delay if tab is closed
 8733        item.update(cx, |item, cx| {
 8734            item.is_dirty = true;
 8735            cx.emit(ItemEvent::Edit);
 8736        });
 8737        cx.executor().advance_clock(Duration::from_millis(250));
 8738        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 8739
 8740        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 8741        pane.update_in(cx, |pane, window, cx| {
 8742            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 8743        })
 8744        .await
 8745        .unwrap();
 8746        assert!(!cx.has_pending_prompt());
 8747        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8748
 8749        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 8750        workspace.update_in(cx, |workspace, window, cx| {
 8751            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8752        });
 8753        item.update_in(cx, |item, _window, cx| {
 8754            item.is_dirty = true;
 8755            for project_item in &mut item.project_items {
 8756                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8757            }
 8758        });
 8759        cx.run_until_parked();
 8760        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8761
 8762        // Autosave on focus change, ensuring closing the tab counts as such.
 8763        item.update(cx, |item, cx| {
 8764            SettingsStore::update_global(cx, |settings, cx| {
 8765                settings.update_user_settings(cx, |settings| {
 8766                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 8767                })
 8768            });
 8769            item.is_dirty = true;
 8770            for project_item in &mut item.project_items {
 8771                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8772            }
 8773        });
 8774
 8775        pane.update_in(cx, |pane, window, cx| {
 8776            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 8777        })
 8778        .await
 8779        .unwrap();
 8780        assert!(!cx.has_pending_prompt());
 8781        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 8782
 8783        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 8784        workspace.update_in(cx, |workspace, window, cx| {
 8785            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8786        });
 8787        item.update_in(cx, |item, window, cx| {
 8788            item.project_items[0].update(cx, |item, _| {
 8789                item.entry_id = None;
 8790            });
 8791            item.is_dirty = true;
 8792            window.blur();
 8793        });
 8794        cx.run_until_parked();
 8795        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 8796
 8797        // Ensure autosave is prevented for deleted files also when closing the buffer.
 8798        let _close_items = pane.update_in(cx, |pane, window, cx| {
 8799            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 8800        });
 8801        cx.run_until_parked();
 8802        assert!(cx.has_pending_prompt());
 8803        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 8804    }
 8805
 8806    #[gpui::test]
 8807    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 8808        init_test(cx);
 8809
 8810        let fs = FakeFs::new(cx.executor());
 8811
 8812        let project = Project::test(fs, [], cx).await;
 8813        let (workspace, cx) =
 8814            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8815
 8816        let item = cx.new(|cx| {
 8817            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8818        });
 8819        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8820        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 8821        let toolbar_notify_count = Rc::new(RefCell::new(0));
 8822
 8823        workspace.update_in(cx, |workspace, window, cx| {
 8824            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8825            let toolbar_notification_count = toolbar_notify_count.clone();
 8826            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 8827                *toolbar_notification_count.borrow_mut() += 1
 8828            })
 8829            .detach();
 8830        });
 8831
 8832        pane.read_with(cx, |pane, _| {
 8833            assert!(!pane.can_navigate_backward());
 8834            assert!(!pane.can_navigate_forward());
 8835        });
 8836
 8837        item.update_in(cx, |item, _, cx| {
 8838            item.set_state("one".to_string(), cx);
 8839        });
 8840
 8841        // Toolbar must be notified to re-render the navigation buttons
 8842        assert_eq!(*toolbar_notify_count.borrow(), 1);
 8843
 8844        pane.read_with(cx, |pane, _| {
 8845            assert!(pane.can_navigate_backward());
 8846            assert!(!pane.can_navigate_forward());
 8847        });
 8848
 8849        workspace
 8850            .update_in(cx, |workspace, window, cx| {
 8851                workspace.go_back(pane.downgrade(), window, cx)
 8852            })
 8853            .await
 8854            .unwrap();
 8855
 8856        assert_eq!(*toolbar_notify_count.borrow(), 2);
 8857        pane.read_with(cx, |pane, _| {
 8858            assert!(!pane.can_navigate_backward());
 8859            assert!(pane.can_navigate_forward());
 8860        });
 8861    }
 8862
 8863    #[gpui::test]
 8864    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 8865        init_test(cx);
 8866        let fs = FakeFs::new(cx.executor());
 8867
 8868        let project = Project::test(fs, [], cx).await;
 8869        let (workspace, cx) =
 8870            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8871
 8872        let panel = workspace.update_in(cx, |workspace, window, cx| {
 8873            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 8874            workspace.add_panel(panel.clone(), window, cx);
 8875
 8876            workspace
 8877                .right_dock()
 8878                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 8879
 8880            panel
 8881        });
 8882
 8883        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8884        pane.update_in(cx, |pane, window, cx| {
 8885            let item = cx.new(TestItem::new);
 8886            pane.add_item(Box::new(item), true, true, None, window, cx);
 8887        });
 8888
 8889        // Transfer focus from center to panel
 8890        workspace.update_in(cx, |workspace, window, cx| {
 8891            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8892        });
 8893
 8894        workspace.update_in(cx, |workspace, window, cx| {
 8895            assert!(workspace.right_dock().read(cx).is_open());
 8896            assert!(!panel.is_zoomed(window, cx));
 8897            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8898        });
 8899
 8900        // Transfer focus from panel to center
 8901        workspace.update_in(cx, |workspace, window, cx| {
 8902            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8903        });
 8904
 8905        workspace.update_in(cx, |workspace, window, cx| {
 8906            assert!(workspace.right_dock().read(cx).is_open());
 8907            assert!(!panel.is_zoomed(window, cx));
 8908            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8909        });
 8910
 8911        // Close the dock
 8912        workspace.update_in(cx, |workspace, window, cx| {
 8913            workspace.toggle_dock(DockPosition::Right, window, cx);
 8914        });
 8915
 8916        workspace.update_in(cx, |workspace, window, cx| {
 8917            assert!(!workspace.right_dock().read(cx).is_open());
 8918            assert!(!panel.is_zoomed(window, cx));
 8919            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8920        });
 8921
 8922        // Open the dock
 8923        workspace.update_in(cx, |workspace, window, cx| {
 8924            workspace.toggle_dock(DockPosition::Right, window, cx);
 8925        });
 8926
 8927        workspace.update_in(cx, |workspace, window, cx| {
 8928            assert!(workspace.right_dock().read(cx).is_open());
 8929            assert!(!panel.is_zoomed(window, cx));
 8930            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8931        });
 8932
 8933        // Focus and zoom panel
 8934        panel.update_in(cx, |panel, window, cx| {
 8935            cx.focus_self(window);
 8936            panel.set_zoomed(true, window, cx)
 8937        });
 8938
 8939        workspace.update_in(cx, |workspace, window, cx| {
 8940            assert!(workspace.right_dock().read(cx).is_open());
 8941            assert!(panel.is_zoomed(window, cx));
 8942            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8943        });
 8944
 8945        // Transfer focus to the center closes the dock
 8946        workspace.update_in(cx, |workspace, window, cx| {
 8947            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8948        });
 8949
 8950        workspace.update_in(cx, |workspace, window, cx| {
 8951            assert!(!workspace.right_dock().read(cx).is_open());
 8952            assert!(panel.is_zoomed(window, cx));
 8953            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8954        });
 8955
 8956        // Transferring focus back to the panel keeps it zoomed
 8957        workspace.update_in(cx, |workspace, window, cx| {
 8958            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8959        });
 8960
 8961        workspace.update_in(cx, |workspace, window, cx| {
 8962            assert!(workspace.right_dock().read(cx).is_open());
 8963            assert!(panel.is_zoomed(window, cx));
 8964            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8965        });
 8966
 8967        // Close the dock while it is zoomed
 8968        workspace.update_in(cx, |workspace, window, cx| {
 8969            workspace.toggle_dock(DockPosition::Right, window, cx)
 8970        });
 8971
 8972        workspace.update_in(cx, |workspace, window, cx| {
 8973            assert!(!workspace.right_dock().read(cx).is_open());
 8974            assert!(panel.is_zoomed(window, cx));
 8975            assert!(workspace.zoomed.is_none());
 8976            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8977        });
 8978
 8979        // Opening the dock, when it's zoomed, retains focus
 8980        workspace.update_in(cx, |workspace, window, cx| {
 8981            workspace.toggle_dock(DockPosition::Right, window, cx)
 8982        });
 8983
 8984        workspace.update_in(cx, |workspace, window, cx| {
 8985            assert!(workspace.right_dock().read(cx).is_open());
 8986            assert!(panel.is_zoomed(window, cx));
 8987            assert!(workspace.zoomed.is_some());
 8988            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8989        });
 8990
 8991        // Unzoom and close the panel, zoom the active pane.
 8992        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 8993        workspace.update_in(cx, |workspace, window, cx| {
 8994            workspace.toggle_dock(DockPosition::Right, window, cx)
 8995        });
 8996        pane.update_in(cx, |pane, window, cx| {
 8997            pane.toggle_zoom(&Default::default(), window, cx)
 8998        });
 8999
 9000        // Opening a dock unzooms the pane.
 9001        workspace.update_in(cx, |workspace, window, cx| {
 9002            workspace.toggle_dock(DockPosition::Right, window, cx)
 9003        });
 9004        workspace.update_in(cx, |workspace, window, cx| {
 9005            let pane = pane.read(cx);
 9006            assert!(!pane.is_zoomed());
 9007            assert!(!pane.focus_handle(cx).is_focused(window));
 9008            assert!(workspace.right_dock().read(cx).is_open());
 9009            assert!(workspace.zoomed.is_none());
 9010        });
 9011    }
 9012
 9013    #[gpui::test]
 9014    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
 9015        init_test(cx);
 9016
 9017        let fs = FakeFs::new(cx.executor());
 9018
 9019        let project = Project::test(fs, None, cx).await;
 9020        let (workspace, cx) =
 9021            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9022
 9023        // Let's arrange the panes like this:
 9024        //
 9025        // +-----------------------+
 9026        // |         top           |
 9027        // +------+--------+-------+
 9028        // | left | center | right |
 9029        // +------+--------+-------+
 9030        // |        bottom         |
 9031        // +-----------------------+
 9032
 9033        let top_item = cx.new(|cx| {
 9034            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
 9035        });
 9036        let bottom_item = cx.new(|cx| {
 9037            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
 9038        });
 9039        let left_item = cx.new(|cx| {
 9040            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
 9041        });
 9042        let right_item = cx.new(|cx| {
 9043            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
 9044        });
 9045        let center_item = cx.new(|cx| {
 9046            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
 9047        });
 9048
 9049        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9050            let top_pane_id = workspace.active_pane().entity_id();
 9051            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
 9052            workspace.split_pane(
 9053                workspace.active_pane().clone(),
 9054                SplitDirection::Down,
 9055                window,
 9056                cx,
 9057            );
 9058            top_pane_id
 9059        });
 9060        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9061            let bottom_pane_id = workspace.active_pane().entity_id();
 9062            workspace.add_item_to_active_pane(
 9063                Box::new(bottom_item.clone()),
 9064                None,
 9065                false,
 9066                window,
 9067                cx,
 9068            );
 9069            workspace.split_pane(
 9070                workspace.active_pane().clone(),
 9071                SplitDirection::Up,
 9072                window,
 9073                cx,
 9074            );
 9075            bottom_pane_id
 9076        });
 9077        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9078            let left_pane_id = workspace.active_pane().entity_id();
 9079            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
 9080            workspace.split_pane(
 9081                workspace.active_pane().clone(),
 9082                SplitDirection::Right,
 9083                window,
 9084                cx,
 9085            );
 9086            left_pane_id
 9087        });
 9088        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9089            let right_pane_id = workspace.active_pane().entity_id();
 9090            workspace.add_item_to_active_pane(
 9091                Box::new(right_item.clone()),
 9092                None,
 9093                false,
 9094                window,
 9095                cx,
 9096            );
 9097            workspace.split_pane(
 9098                workspace.active_pane().clone(),
 9099                SplitDirection::Left,
 9100                window,
 9101                cx,
 9102            );
 9103            right_pane_id
 9104        });
 9105        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9106            let center_pane_id = workspace.active_pane().entity_id();
 9107            workspace.add_item_to_active_pane(
 9108                Box::new(center_item.clone()),
 9109                None,
 9110                false,
 9111                window,
 9112                cx,
 9113            );
 9114            center_pane_id
 9115        });
 9116        cx.executor().run_until_parked();
 9117
 9118        workspace.update_in(cx, |workspace, window, cx| {
 9119            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
 9120
 9121            // Join into next from center pane into right
 9122            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9123        });
 9124
 9125        workspace.update_in(cx, |workspace, window, cx| {
 9126            let active_pane = workspace.active_pane();
 9127            assert_eq!(right_pane_id, active_pane.entity_id());
 9128            assert_eq!(2, active_pane.read(cx).items_len());
 9129            let item_ids_in_pane =
 9130                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9131            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9132            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9133
 9134            // Join into next from right pane into bottom
 9135            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9136        });
 9137
 9138        workspace.update_in(cx, |workspace, window, cx| {
 9139            let active_pane = workspace.active_pane();
 9140            assert_eq!(bottom_pane_id, active_pane.entity_id());
 9141            assert_eq!(3, active_pane.read(cx).items_len());
 9142            let item_ids_in_pane =
 9143                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9144            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9145            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9146            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9147
 9148            // Join into next from bottom pane into left
 9149            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9150        });
 9151
 9152        workspace.update_in(cx, |workspace, window, cx| {
 9153            let active_pane = workspace.active_pane();
 9154            assert_eq!(left_pane_id, active_pane.entity_id());
 9155            assert_eq!(4, active_pane.read(cx).items_len());
 9156            let item_ids_in_pane =
 9157                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9158            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9159            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9160            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9161            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9162
 9163            // Join into next from left pane into top
 9164            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9165        });
 9166
 9167        workspace.update_in(cx, |workspace, window, cx| {
 9168            let active_pane = workspace.active_pane();
 9169            assert_eq!(top_pane_id, active_pane.entity_id());
 9170            assert_eq!(5, active_pane.read(cx).items_len());
 9171            let item_ids_in_pane =
 9172                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9173            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9174            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9175            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9176            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9177            assert!(item_ids_in_pane.contains(&top_item.item_id()));
 9178
 9179            // Single pane left: no-op
 9180            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
 9181        });
 9182
 9183        workspace.update(cx, |workspace, _cx| {
 9184            let active_pane = workspace.active_pane();
 9185            assert_eq!(top_pane_id, active_pane.entity_id());
 9186        });
 9187    }
 9188
 9189    fn add_an_item_to_active_pane(
 9190        cx: &mut VisualTestContext,
 9191        workspace: &Entity<Workspace>,
 9192        item_id: u64,
 9193    ) -> Entity<TestItem> {
 9194        let item = cx.new(|cx| {
 9195            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
 9196                item_id,
 9197                "item{item_id}.txt",
 9198                cx,
 9199            )])
 9200        });
 9201        workspace.update_in(cx, |workspace, window, cx| {
 9202            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
 9203        });
 9204        item
 9205    }
 9206
 9207    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
 9208        workspace.update_in(cx, |workspace, window, cx| {
 9209            workspace.split_pane(
 9210                workspace.active_pane().clone(),
 9211                SplitDirection::Right,
 9212                window,
 9213                cx,
 9214            )
 9215        })
 9216    }
 9217
 9218    #[gpui::test]
 9219    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
 9220        init_test(cx);
 9221        let fs = FakeFs::new(cx.executor());
 9222        let project = Project::test(fs, None, cx).await;
 9223        let (workspace, cx) =
 9224            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9225
 9226        add_an_item_to_active_pane(cx, &workspace, 1);
 9227        split_pane(cx, &workspace);
 9228        add_an_item_to_active_pane(cx, &workspace, 2);
 9229        split_pane(cx, &workspace); // empty pane
 9230        split_pane(cx, &workspace);
 9231        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
 9232
 9233        cx.executor().run_until_parked();
 9234
 9235        workspace.update(cx, |workspace, cx| {
 9236            let num_panes = workspace.panes().len();
 9237            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9238            let active_item = workspace
 9239                .active_pane()
 9240                .read(cx)
 9241                .active_item()
 9242                .expect("item is in focus");
 9243
 9244            assert_eq!(num_panes, 4);
 9245            assert_eq!(num_items_in_current_pane, 1);
 9246            assert_eq!(active_item.item_id(), last_item.item_id());
 9247        });
 9248
 9249        workspace.update_in(cx, |workspace, window, cx| {
 9250            workspace.join_all_panes(window, cx);
 9251        });
 9252
 9253        workspace.update(cx, |workspace, cx| {
 9254            let num_panes = workspace.panes().len();
 9255            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9256            let active_item = workspace
 9257                .active_pane()
 9258                .read(cx)
 9259                .active_item()
 9260                .expect("item is in focus");
 9261
 9262            assert_eq!(num_panes, 1);
 9263            assert_eq!(num_items_in_current_pane, 3);
 9264            assert_eq!(active_item.item_id(), last_item.item_id());
 9265        });
 9266    }
 9267    struct TestModal(FocusHandle);
 9268
 9269    impl TestModal {
 9270        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
 9271            Self(cx.focus_handle())
 9272        }
 9273    }
 9274
 9275    impl EventEmitter<DismissEvent> for TestModal {}
 9276
 9277    impl Focusable for TestModal {
 9278        fn focus_handle(&self, _cx: &App) -> FocusHandle {
 9279            self.0.clone()
 9280        }
 9281    }
 9282
 9283    impl ModalView for TestModal {}
 9284
 9285    impl Render for TestModal {
 9286        fn render(
 9287            &mut self,
 9288            _window: &mut Window,
 9289            _cx: &mut Context<TestModal>,
 9290        ) -> impl IntoElement {
 9291            div().track_focus(&self.0)
 9292        }
 9293    }
 9294
 9295    #[gpui::test]
 9296    async fn test_panels(cx: &mut gpui::TestAppContext) {
 9297        init_test(cx);
 9298        let fs = FakeFs::new(cx.executor());
 9299
 9300        let project = Project::test(fs, [], cx).await;
 9301        let (workspace, cx) =
 9302            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9303
 9304        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
 9305            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, cx));
 9306            workspace.add_panel(panel_1.clone(), window, cx);
 9307            workspace.toggle_dock(DockPosition::Left, window, cx);
 9308            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 9309            workspace.add_panel(panel_2.clone(), window, cx);
 9310            workspace.toggle_dock(DockPosition::Right, window, cx);
 9311
 9312            let left_dock = workspace.left_dock();
 9313            assert_eq!(
 9314                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9315                panel_1.panel_id()
 9316            );
 9317            assert_eq!(
 9318                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9319                panel_1.size(window, cx)
 9320            );
 9321
 9322            left_dock.update(cx, |left_dock, cx| {
 9323                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
 9324            });
 9325            assert_eq!(
 9326                workspace
 9327                    .right_dock()
 9328                    .read(cx)
 9329                    .visible_panel()
 9330                    .unwrap()
 9331                    .panel_id(),
 9332                panel_2.panel_id(),
 9333            );
 9334
 9335            (panel_1, panel_2)
 9336        });
 9337
 9338        // Move panel_1 to the right
 9339        panel_1.update_in(cx, |panel_1, window, cx| {
 9340            panel_1.set_position(DockPosition::Right, window, cx)
 9341        });
 9342
 9343        workspace.update_in(cx, |workspace, window, cx| {
 9344            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
 9345            // Since it was the only panel on the left, the left dock should now be closed.
 9346            assert!(!workspace.left_dock().read(cx).is_open());
 9347            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
 9348            let right_dock = workspace.right_dock();
 9349            assert_eq!(
 9350                right_dock.read(cx).visible_panel().unwrap().panel_id(),
 9351                panel_1.panel_id()
 9352            );
 9353            assert_eq!(
 9354                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9355                px(1337.)
 9356            );
 9357
 9358            // Now we move panel_2 to the left
 9359            panel_2.set_position(DockPosition::Left, window, cx);
 9360        });
 9361
 9362        workspace.update(cx, |workspace, cx| {
 9363            // Since panel_2 was not visible on the right, we don't open the left dock.
 9364            assert!(!workspace.left_dock().read(cx).is_open());
 9365            // And the right dock is unaffected in its displaying of panel_1
 9366            assert!(workspace.right_dock().read(cx).is_open());
 9367            assert_eq!(
 9368                workspace
 9369                    .right_dock()
 9370                    .read(cx)
 9371                    .visible_panel()
 9372                    .unwrap()
 9373                    .panel_id(),
 9374                panel_1.panel_id(),
 9375            );
 9376        });
 9377
 9378        // Move panel_1 back to the left
 9379        panel_1.update_in(cx, |panel_1, window, cx| {
 9380            panel_1.set_position(DockPosition::Left, window, cx)
 9381        });
 9382
 9383        workspace.update_in(cx, |workspace, window, cx| {
 9384            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
 9385            let left_dock = workspace.left_dock();
 9386            assert!(left_dock.read(cx).is_open());
 9387            assert_eq!(
 9388                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9389                panel_1.panel_id()
 9390            );
 9391            assert_eq!(
 9392                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9393                px(1337.)
 9394            );
 9395            // And the right dock should be closed as it no longer has any panels.
 9396            assert!(!workspace.right_dock().read(cx).is_open());
 9397
 9398            // Now we move panel_1 to the bottom
 9399            panel_1.set_position(DockPosition::Bottom, window, cx);
 9400        });
 9401
 9402        workspace.update_in(cx, |workspace, window, cx| {
 9403            // Since panel_1 was visible on the left, we close the left dock.
 9404            assert!(!workspace.left_dock().read(cx).is_open());
 9405            // The bottom dock is sized based on the panel's default size,
 9406            // since the panel orientation changed from vertical to horizontal.
 9407            let bottom_dock = workspace.bottom_dock();
 9408            assert_eq!(
 9409                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9410                panel_1.size(window, cx),
 9411            );
 9412            // Close bottom dock and move panel_1 back to the left.
 9413            bottom_dock.update(cx, |bottom_dock, cx| {
 9414                bottom_dock.set_open(false, window, cx)
 9415            });
 9416            panel_1.set_position(DockPosition::Left, window, cx);
 9417        });
 9418
 9419        // Emit activated event on panel 1
 9420        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
 9421
 9422        // Now the left dock is open and panel_1 is active and focused.
 9423        workspace.update_in(cx, |workspace, window, cx| {
 9424            let left_dock = workspace.left_dock();
 9425            assert!(left_dock.read(cx).is_open());
 9426            assert_eq!(
 9427                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9428                panel_1.panel_id(),
 9429            );
 9430            assert!(panel_1.focus_handle(cx).is_focused(window));
 9431        });
 9432
 9433        // Emit closed event on panel 2, which is not active
 9434        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 9435
 9436        // Wo don't close the left dock, because panel_2 wasn't the active panel
 9437        workspace.update(cx, |workspace, cx| {
 9438            let left_dock = workspace.left_dock();
 9439            assert!(left_dock.read(cx).is_open());
 9440            assert_eq!(
 9441                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9442                panel_1.panel_id(),
 9443            );
 9444        });
 9445
 9446        // Emitting a ZoomIn event shows the panel as zoomed.
 9447        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
 9448        workspace.read_with(cx, |workspace, _| {
 9449            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9450            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
 9451        });
 9452
 9453        // Move panel to another dock while it is zoomed
 9454        panel_1.update_in(cx, |panel, window, cx| {
 9455            panel.set_position(DockPosition::Right, window, cx)
 9456        });
 9457        workspace.read_with(cx, |workspace, _| {
 9458            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9459
 9460            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9461        });
 9462
 9463        // This is a helper for getting a:
 9464        // - valid focus on an element,
 9465        // - that isn't a part of the panes and panels system of the Workspace,
 9466        // - and doesn't trigger the 'on_focus_lost' API.
 9467        let focus_other_view = {
 9468            let workspace = workspace.clone();
 9469            move |cx: &mut VisualTestContext| {
 9470                workspace.update_in(cx, |workspace, window, cx| {
 9471                    if workspace.active_modal::<TestModal>(cx).is_some() {
 9472                        workspace.toggle_modal(window, cx, TestModal::new);
 9473                        workspace.toggle_modal(window, cx, TestModal::new);
 9474                    } else {
 9475                        workspace.toggle_modal(window, cx, TestModal::new);
 9476                    }
 9477                })
 9478            }
 9479        };
 9480
 9481        // If focus is transferred to another view that's not a panel or another pane, we still show
 9482        // the panel as zoomed.
 9483        focus_other_view(cx);
 9484        workspace.read_with(cx, |workspace, _| {
 9485            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9486            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9487        });
 9488
 9489        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
 9490        workspace.update_in(cx, |_workspace, window, cx| {
 9491            cx.focus_self(window);
 9492        });
 9493        workspace.read_with(cx, |workspace, _| {
 9494            assert_eq!(workspace.zoomed, None);
 9495            assert_eq!(workspace.zoomed_position, None);
 9496        });
 9497
 9498        // If focus is transferred again to another view that's not a panel or a pane, we won't
 9499        // show the panel as zoomed because it wasn't zoomed before.
 9500        focus_other_view(cx);
 9501        workspace.read_with(cx, |workspace, _| {
 9502            assert_eq!(workspace.zoomed, None);
 9503            assert_eq!(workspace.zoomed_position, None);
 9504        });
 9505
 9506        // When the panel is activated, it is zoomed again.
 9507        cx.dispatch_action(ToggleRightDock);
 9508        workspace.read_with(cx, |workspace, _| {
 9509            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9510            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9511        });
 9512
 9513        // Emitting a ZoomOut event unzooms the panel.
 9514        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
 9515        workspace.read_with(cx, |workspace, _| {
 9516            assert_eq!(workspace.zoomed, None);
 9517            assert_eq!(workspace.zoomed_position, None);
 9518        });
 9519
 9520        // Emit closed event on panel 1, which is active
 9521        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 9522
 9523        // Now the left dock is closed, because panel_1 was the active panel
 9524        workspace.update(cx, |workspace, cx| {
 9525            let right_dock = workspace.right_dock();
 9526            assert!(!right_dock.read(cx).is_open());
 9527        });
 9528    }
 9529
 9530    #[gpui::test]
 9531    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
 9532        init_test(cx);
 9533
 9534        let fs = FakeFs::new(cx.background_executor.clone());
 9535        let project = Project::test(fs, [], cx).await;
 9536        let (workspace, cx) =
 9537            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9538        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9539
 9540        let dirty_regular_buffer = cx.new(|cx| {
 9541            TestItem::new(cx)
 9542                .with_dirty(true)
 9543                .with_label("1.txt")
 9544                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9545        });
 9546        let dirty_regular_buffer_2 = cx.new(|cx| {
 9547            TestItem::new(cx)
 9548                .with_dirty(true)
 9549                .with_label("2.txt")
 9550                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9551        });
 9552        let dirty_multi_buffer_with_both = cx.new(|cx| {
 9553            TestItem::new(cx)
 9554                .with_dirty(true)
 9555                .with_singleton(false)
 9556                .with_label("Fake Project Search")
 9557                .with_project_items(&[
 9558                    dirty_regular_buffer.read(cx).project_items[0].clone(),
 9559                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
 9560                ])
 9561        });
 9562        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
 9563        workspace.update_in(cx, |workspace, window, cx| {
 9564            workspace.add_item(
 9565                pane.clone(),
 9566                Box::new(dirty_regular_buffer.clone()),
 9567                None,
 9568                false,
 9569                false,
 9570                window,
 9571                cx,
 9572            );
 9573            workspace.add_item(
 9574                pane.clone(),
 9575                Box::new(dirty_regular_buffer_2.clone()),
 9576                None,
 9577                false,
 9578                false,
 9579                window,
 9580                cx,
 9581            );
 9582            workspace.add_item(
 9583                pane.clone(),
 9584                Box::new(dirty_multi_buffer_with_both.clone()),
 9585                None,
 9586                false,
 9587                false,
 9588                window,
 9589                cx,
 9590            );
 9591        });
 9592
 9593        pane.update_in(cx, |pane, window, cx| {
 9594            pane.activate_item(2, true, true, window, cx);
 9595            assert_eq!(
 9596                pane.active_item().unwrap().item_id(),
 9597                multi_buffer_with_both_files_id,
 9598                "Should select the multi buffer in the pane"
 9599            );
 9600        });
 9601        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9602            pane.close_other_items(
 9603                &CloseOtherItems {
 9604                    save_intent: Some(SaveIntent::Save),
 9605                    close_pinned: true,
 9606                },
 9607                None,
 9608                window,
 9609                cx,
 9610            )
 9611        });
 9612        cx.background_executor.run_until_parked();
 9613        assert!(!cx.has_pending_prompt());
 9614        close_all_but_multi_buffer_task
 9615            .await
 9616            .expect("Closing all buffers but the multi buffer failed");
 9617        pane.update(cx, |pane, cx| {
 9618            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
 9619            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
 9620            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
 9621            assert_eq!(pane.items_len(), 1);
 9622            assert_eq!(
 9623                pane.active_item().unwrap().item_id(),
 9624                multi_buffer_with_both_files_id,
 9625                "Should have only the multi buffer left in the pane"
 9626            );
 9627            assert!(
 9628                dirty_multi_buffer_with_both.read(cx).is_dirty,
 9629                "The multi buffer containing the unsaved buffer should still be dirty"
 9630            );
 9631        });
 9632
 9633        dirty_regular_buffer.update(cx, |buffer, cx| {
 9634            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
 9635        });
 9636
 9637        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9638            pane.close_active_item(
 9639                &CloseActiveItem {
 9640                    save_intent: Some(SaveIntent::Close),
 9641                    close_pinned: false,
 9642                },
 9643                window,
 9644                cx,
 9645            )
 9646        });
 9647        cx.background_executor.run_until_parked();
 9648        assert!(
 9649            cx.has_pending_prompt(),
 9650            "Dirty multi buffer should prompt a save dialog"
 9651        );
 9652        cx.simulate_prompt_answer("Save");
 9653        cx.background_executor.run_until_parked();
 9654        close_multi_buffer_task
 9655            .await
 9656            .expect("Closing the multi buffer failed");
 9657        pane.update(cx, |pane, cx| {
 9658            assert_eq!(
 9659                dirty_multi_buffer_with_both.read(cx).save_count,
 9660                1,
 9661                "Multi buffer item should get be saved"
 9662            );
 9663            // Test impl does not save inner items, so we do not assert them
 9664            assert_eq!(
 9665                pane.items_len(),
 9666                0,
 9667                "No more items should be left in the pane"
 9668            );
 9669            assert!(pane.active_item().is_none());
 9670        });
 9671    }
 9672
 9673    #[gpui::test]
 9674    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
 9675        cx: &mut TestAppContext,
 9676    ) {
 9677        init_test(cx);
 9678
 9679        let fs = FakeFs::new(cx.background_executor.clone());
 9680        let project = Project::test(fs, [], cx).await;
 9681        let (workspace, cx) =
 9682            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9683        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9684
 9685        let dirty_regular_buffer = cx.new(|cx| {
 9686            TestItem::new(cx)
 9687                .with_dirty(true)
 9688                .with_label("1.txt")
 9689                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9690        });
 9691        let dirty_regular_buffer_2 = cx.new(|cx| {
 9692            TestItem::new(cx)
 9693                .with_dirty(true)
 9694                .with_label("2.txt")
 9695                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9696        });
 9697        let clear_regular_buffer = cx.new(|cx| {
 9698            TestItem::new(cx)
 9699                .with_label("3.txt")
 9700                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
 9701        });
 9702
 9703        let dirty_multi_buffer_with_both = cx.new(|cx| {
 9704            TestItem::new(cx)
 9705                .with_dirty(true)
 9706                .with_singleton(false)
 9707                .with_label("Fake Project Search")
 9708                .with_project_items(&[
 9709                    dirty_regular_buffer.read(cx).project_items[0].clone(),
 9710                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
 9711                    clear_regular_buffer.read(cx).project_items[0].clone(),
 9712                ])
 9713        });
 9714        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
 9715        workspace.update_in(cx, |workspace, window, cx| {
 9716            workspace.add_item(
 9717                pane.clone(),
 9718                Box::new(dirty_regular_buffer.clone()),
 9719                None,
 9720                false,
 9721                false,
 9722                window,
 9723                cx,
 9724            );
 9725            workspace.add_item(
 9726                pane.clone(),
 9727                Box::new(dirty_multi_buffer_with_both.clone()),
 9728                None,
 9729                false,
 9730                false,
 9731                window,
 9732                cx,
 9733            );
 9734        });
 9735
 9736        pane.update_in(cx, |pane, window, cx| {
 9737            pane.activate_item(1, true, true, window, cx);
 9738            assert_eq!(
 9739                pane.active_item().unwrap().item_id(),
 9740                multi_buffer_with_both_files_id,
 9741                "Should select the multi buffer in the pane"
 9742            );
 9743        });
 9744        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9745            pane.close_active_item(
 9746                &CloseActiveItem {
 9747                    save_intent: None,
 9748                    close_pinned: false,
 9749                },
 9750                window,
 9751                cx,
 9752            )
 9753        });
 9754        cx.background_executor.run_until_parked();
 9755        assert!(
 9756            cx.has_pending_prompt(),
 9757            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
 9758        );
 9759    }
 9760
 9761    /// Tests that when `close_on_file_delete` is enabled, files are automatically
 9762    /// closed when they are deleted from disk.
 9763    #[gpui::test]
 9764    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
 9765        init_test(cx);
 9766
 9767        // Enable the close_on_disk_deletion setting
 9768        cx.update_global(|store: &mut SettingsStore, cx| {
 9769            store.update_user_settings(cx, |settings| {
 9770                settings.workspace.close_on_file_delete = Some(true);
 9771            });
 9772        });
 9773
 9774        let fs = FakeFs::new(cx.background_executor.clone());
 9775        let project = Project::test(fs, [], cx).await;
 9776        let (workspace, cx) =
 9777            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9778        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9779
 9780        // Create a test item that simulates a file
 9781        let item = cx.new(|cx| {
 9782            TestItem::new(cx)
 9783                .with_label("test.txt")
 9784                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9785        });
 9786
 9787        // Add item to workspace
 9788        workspace.update_in(cx, |workspace, window, cx| {
 9789            workspace.add_item(
 9790                pane.clone(),
 9791                Box::new(item.clone()),
 9792                None,
 9793                false,
 9794                false,
 9795                window,
 9796                cx,
 9797            );
 9798        });
 9799
 9800        // Verify the item is in the pane
 9801        pane.read_with(cx, |pane, _| {
 9802            assert_eq!(pane.items().count(), 1);
 9803        });
 9804
 9805        // Simulate file deletion by setting the item's deleted state
 9806        item.update(cx, |item, _| {
 9807            item.set_has_deleted_file(true);
 9808        });
 9809
 9810        // Emit UpdateTab event to trigger the close behavior
 9811        cx.run_until_parked();
 9812        item.update(cx, |_, cx| {
 9813            cx.emit(ItemEvent::UpdateTab);
 9814        });
 9815
 9816        // Allow the close operation to complete
 9817        cx.run_until_parked();
 9818
 9819        // Verify the item was automatically closed
 9820        pane.read_with(cx, |pane, _| {
 9821            assert_eq!(
 9822                pane.items().count(),
 9823                0,
 9824                "Item should be automatically closed when file is deleted"
 9825            );
 9826        });
 9827    }
 9828
 9829    /// Tests that when `close_on_file_delete` is disabled (default), files remain
 9830    /// open with a strikethrough when they are deleted from disk.
 9831    #[gpui::test]
 9832    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
 9833        init_test(cx);
 9834
 9835        // Ensure close_on_disk_deletion is disabled (default)
 9836        cx.update_global(|store: &mut SettingsStore, cx| {
 9837            store.update_user_settings(cx, |settings| {
 9838                settings.workspace.close_on_file_delete = Some(false);
 9839            });
 9840        });
 9841
 9842        let fs = FakeFs::new(cx.background_executor.clone());
 9843        let project = Project::test(fs, [], cx).await;
 9844        let (workspace, cx) =
 9845            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9846        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9847
 9848        // Create a test item that simulates a file
 9849        let item = cx.new(|cx| {
 9850            TestItem::new(cx)
 9851                .with_label("test.txt")
 9852                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9853        });
 9854
 9855        // Add item to workspace
 9856        workspace.update_in(cx, |workspace, window, cx| {
 9857            workspace.add_item(
 9858                pane.clone(),
 9859                Box::new(item.clone()),
 9860                None,
 9861                false,
 9862                false,
 9863                window,
 9864                cx,
 9865            );
 9866        });
 9867
 9868        // Verify the item is in the pane
 9869        pane.read_with(cx, |pane, _| {
 9870            assert_eq!(pane.items().count(), 1);
 9871        });
 9872
 9873        // Simulate file deletion
 9874        item.update(cx, |item, _| {
 9875            item.set_has_deleted_file(true);
 9876        });
 9877
 9878        // Emit UpdateTab event
 9879        cx.run_until_parked();
 9880        item.update(cx, |_, cx| {
 9881            cx.emit(ItemEvent::UpdateTab);
 9882        });
 9883
 9884        // Allow any potential close operation to complete
 9885        cx.run_until_parked();
 9886
 9887        // Verify the item remains open (with strikethrough)
 9888        pane.read_with(cx, |pane, _| {
 9889            assert_eq!(
 9890                pane.items().count(),
 9891                1,
 9892                "Item should remain open when close_on_disk_deletion is disabled"
 9893            );
 9894        });
 9895
 9896        // Verify the item shows as deleted
 9897        item.read_with(cx, |item, _| {
 9898            assert!(
 9899                item.has_deleted_file,
 9900                "Item should be marked as having deleted file"
 9901            );
 9902        });
 9903    }
 9904
 9905    /// Tests that dirty files are not automatically closed when deleted from disk,
 9906    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
 9907    /// unsaved changes without being prompted.
 9908    #[gpui::test]
 9909    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
 9910        init_test(cx);
 9911
 9912        // Enable the close_on_file_delete setting
 9913        cx.update_global(|store: &mut SettingsStore, cx| {
 9914            store.update_user_settings(cx, |settings| {
 9915                settings.workspace.close_on_file_delete = Some(true);
 9916            });
 9917        });
 9918
 9919        let fs = FakeFs::new(cx.background_executor.clone());
 9920        let project = Project::test(fs, [], cx).await;
 9921        let (workspace, cx) =
 9922            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9923        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9924
 9925        // Create a dirty test item
 9926        let item = cx.new(|cx| {
 9927            TestItem::new(cx)
 9928                .with_dirty(true)
 9929                .with_label("test.txt")
 9930                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9931        });
 9932
 9933        // Add item to workspace
 9934        workspace.update_in(cx, |workspace, window, cx| {
 9935            workspace.add_item(
 9936                pane.clone(),
 9937                Box::new(item.clone()),
 9938                None,
 9939                false,
 9940                false,
 9941                window,
 9942                cx,
 9943            );
 9944        });
 9945
 9946        // Simulate file deletion
 9947        item.update(cx, |item, _| {
 9948            item.set_has_deleted_file(true);
 9949        });
 9950
 9951        // Emit UpdateTab event to trigger the close behavior
 9952        cx.run_until_parked();
 9953        item.update(cx, |_, cx| {
 9954            cx.emit(ItemEvent::UpdateTab);
 9955        });
 9956
 9957        // Allow any potential close operation to complete
 9958        cx.run_until_parked();
 9959
 9960        // Verify the item remains open (dirty files are not auto-closed)
 9961        pane.read_with(cx, |pane, _| {
 9962            assert_eq!(
 9963                pane.items().count(),
 9964                1,
 9965                "Dirty items should not be automatically closed even when file is deleted"
 9966            );
 9967        });
 9968
 9969        // Verify the item is marked as deleted and still dirty
 9970        item.read_with(cx, |item, _| {
 9971            assert!(
 9972                item.has_deleted_file,
 9973                "Item should be marked as having deleted file"
 9974            );
 9975            assert!(item.is_dirty, "Item should still be dirty");
 9976        });
 9977    }
 9978
 9979    /// Tests that navigation history is cleaned up when files are auto-closed
 9980    /// due to deletion from disk.
 9981    #[gpui::test]
 9982    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
 9983        init_test(cx);
 9984
 9985        // Enable the close_on_file_delete setting
 9986        cx.update_global(|store: &mut SettingsStore, cx| {
 9987            store.update_user_settings(cx, |settings| {
 9988                settings.workspace.close_on_file_delete = Some(true);
 9989            });
 9990        });
 9991
 9992        let fs = FakeFs::new(cx.background_executor.clone());
 9993        let project = Project::test(fs, [], cx).await;
 9994        let (workspace, cx) =
 9995            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9996        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9997
 9998        // Create test items
 9999        let item1 = cx.new(|cx| {
10000            TestItem::new(cx)
10001                .with_label("test1.txt")
10002                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
10003        });
10004        let item1_id = item1.item_id();
10005
10006        let item2 = cx.new(|cx| {
10007            TestItem::new(cx)
10008                .with_label("test2.txt")
10009                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
10010        });
10011
10012        // Add items to workspace
10013        workspace.update_in(cx, |workspace, window, cx| {
10014            workspace.add_item(
10015                pane.clone(),
10016                Box::new(item1.clone()),
10017                None,
10018                false,
10019                false,
10020                window,
10021                cx,
10022            );
10023            workspace.add_item(
10024                pane.clone(),
10025                Box::new(item2.clone()),
10026                None,
10027                false,
10028                false,
10029                window,
10030                cx,
10031            );
10032        });
10033
10034        // Activate item1 to ensure it gets navigation entries
10035        pane.update_in(cx, |pane, window, cx| {
10036            pane.activate_item(0, true, true, window, cx);
10037        });
10038
10039        // Switch to item2 and back to create navigation history
10040        pane.update_in(cx, |pane, window, cx| {
10041            pane.activate_item(1, true, true, window, cx);
10042        });
10043        cx.run_until_parked();
10044
10045        pane.update_in(cx, |pane, window, cx| {
10046            pane.activate_item(0, true, true, window, cx);
10047        });
10048        cx.run_until_parked();
10049
10050        // Simulate file deletion for item1
10051        item1.update(cx, |item, _| {
10052            item.set_has_deleted_file(true);
10053        });
10054
10055        // Emit UpdateTab event to trigger the close behavior
10056        item1.update(cx, |_, cx| {
10057            cx.emit(ItemEvent::UpdateTab);
10058        });
10059        cx.run_until_parked();
10060
10061        // Verify item1 was closed
10062        pane.read_with(cx, |pane, _| {
10063            assert_eq!(
10064                pane.items().count(),
10065                1,
10066                "Should have 1 item remaining after auto-close"
10067            );
10068        });
10069
10070        // Check navigation history after close
10071        let has_item = pane.read_with(cx, |pane, cx| {
10072            let mut has_item = false;
10073            pane.nav_history().for_each_entry(cx, |entry, _| {
10074                if entry.item.id() == item1_id {
10075                    has_item = true;
10076                }
10077            });
10078            has_item
10079        });
10080
10081        assert!(
10082            !has_item,
10083            "Navigation history should not contain closed item entries"
10084        );
10085    }
10086
10087    #[gpui::test]
10088    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
10089        cx: &mut TestAppContext,
10090    ) {
10091        init_test(cx);
10092
10093        let fs = FakeFs::new(cx.background_executor.clone());
10094        let project = Project::test(fs, [], cx).await;
10095        let (workspace, cx) =
10096            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10097        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10098
10099        let dirty_regular_buffer = cx.new(|cx| {
10100            TestItem::new(cx)
10101                .with_dirty(true)
10102                .with_label("1.txt")
10103                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10104        });
10105        let dirty_regular_buffer_2 = cx.new(|cx| {
10106            TestItem::new(cx)
10107                .with_dirty(true)
10108                .with_label("2.txt")
10109                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10110        });
10111        let clear_regular_buffer = cx.new(|cx| {
10112            TestItem::new(cx)
10113                .with_label("3.txt")
10114                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10115        });
10116
10117        let dirty_multi_buffer = cx.new(|cx| {
10118            TestItem::new(cx)
10119                .with_dirty(true)
10120                .with_singleton(false)
10121                .with_label("Fake Project Search")
10122                .with_project_items(&[
10123                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10124                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10125                    clear_regular_buffer.read(cx).project_items[0].clone(),
10126                ])
10127        });
10128        workspace.update_in(cx, |workspace, window, cx| {
10129            workspace.add_item(
10130                pane.clone(),
10131                Box::new(dirty_regular_buffer.clone()),
10132                None,
10133                false,
10134                false,
10135                window,
10136                cx,
10137            );
10138            workspace.add_item(
10139                pane.clone(),
10140                Box::new(dirty_regular_buffer_2.clone()),
10141                None,
10142                false,
10143                false,
10144                window,
10145                cx,
10146            );
10147            workspace.add_item(
10148                pane.clone(),
10149                Box::new(dirty_multi_buffer.clone()),
10150                None,
10151                false,
10152                false,
10153                window,
10154                cx,
10155            );
10156        });
10157
10158        pane.update_in(cx, |pane, window, cx| {
10159            pane.activate_item(2, true, true, window, cx);
10160            assert_eq!(
10161                pane.active_item().unwrap().item_id(),
10162                dirty_multi_buffer.item_id(),
10163                "Should select the multi buffer in the pane"
10164            );
10165        });
10166        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10167            pane.close_active_item(
10168                &CloseActiveItem {
10169                    save_intent: None,
10170                    close_pinned: false,
10171                },
10172                window,
10173                cx,
10174            )
10175        });
10176        cx.background_executor.run_until_parked();
10177        assert!(
10178            !cx.has_pending_prompt(),
10179            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
10180        );
10181        close_multi_buffer_task
10182            .await
10183            .expect("Closing multi buffer failed");
10184        pane.update(cx, |pane, cx| {
10185            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
10186            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
10187            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
10188            assert_eq!(
10189                pane.items()
10190                    .map(|item| item.item_id())
10191                    .sorted()
10192                    .collect::<Vec<_>>(),
10193                vec![
10194                    dirty_regular_buffer.item_id(),
10195                    dirty_regular_buffer_2.item_id(),
10196                ],
10197                "Should have no multi buffer left in the pane"
10198            );
10199            assert!(dirty_regular_buffer.read(cx).is_dirty);
10200            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
10201        });
10202    }
10203
10204    #[gpui::test]
10205    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
10206        init_test(cx);
10207        let fs = FakeFs::new(cx.executor());
10208        let project = Project::test(fs, [], cx).await;
10209        let (workspace, cx) =
10210            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10211
10212        // Add a new panel to the right dock, opening the dock and setting the
10213        // focus to the new panel.
10214        let panel = workspace.update_in(cx, |workspace, window, cx| {
10215            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
10216            workspace.add_panel(panel.clone(), window, cx);
10217
10218            workspace
10219                .right_dock()
10220                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
10221
10222            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10223
10224            panel
10225        });
10226
10227        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10228        // panel to the next valid position which, in this case, is the left
10229        // dock.
10230        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10231        workspace.update(cx, |workspace, cx| {
10232            assert!(workspace.left_dock().read(cx).is_open());
10233            assert_eq!(panel.read(cx).position, DockPosition::Left);
10234        });
10235
10236        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10237        // panel to the next valid position which, in this case, is the bottom
10238        // dock.
10239        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10240        workspace.update(cx, |workspace, cx| {
10241            assert!(workspace.bottom_dock().read(cx).is_open());
10242            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
10243        });
10244
10245        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
10246        // around moving the panel to its initial position, the right dock.
10247        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10248        workspace.update(cx, |workspace, cx| {
10249            assert!(workspace.right_dock().read(cx).is_open());
10250            assert_eq!(panel.read(cx).position, DockPosition::Right);
10251        });
10252
10253        // Remove focus from the panel, ensuring that, if the panel is not
10254        // focused, the `MoveFocusedPanelToNextPosition` action does not update
10255        // the panel's position, so the panel is still in the right dock.
10256        workspace.update_in(cx, |workspace, window, cx| {
10257            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10258        });
10259
10260        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10261        workspace.update(cx, |workspace, cx| {
10262            assert!(workspace.right_dock().read(cx).is_open());
10263            assert_eq!(panel.read(cx).position, DockPosition::Right);
10264        });
10265    }
10266
10267    #[gpui::test]
10268    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
10269        init_test(cx);
10270
10271        let fs = FakeFs::new(cx.executor());
10272        let project = Project::test(fs, [], cx).await;
10273        let (workspace, cx) =
10274            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10275
10276        let item_1 = cx.new(|cx| {
10277            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10278        });
10279        workspace.update_in(cx, |workspace, window, cx| {
10280            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10281            workspace.move_item_to_pane_in_direction(
10282                &MoveItemToPaneInDirection {
10283                    direction: SplitDirection::Right,
10284                    focus: true,
10285                    clone: false,
10286                },
10287                window,
10288                cx,
10289            );
10290            workspace.move_item_to_pane_at_index(
10291                &MoveItemToPane {
10292                    destination: 3,
10293                    focus: true,
10294                    clone: false,
10295                },
10296                window,
10297                cx,
10298            );
10299
10300            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
10301            assert_eq!(
10302                pane_items_paths(&workspace.active_pane, cx),
10303                vec!["first.txt".to_string()],
10304                "Single item was not moved anywhere"
10305            );
10306        });
10307
10308        let item_2 = cx.new(|cx| {
10309            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
10310        });
10311        workspace.update_in(cx, |workspace, window, cx| {
10312            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
10313            assert_eq!(
10314                pane_items_paths(&workspace.panes[0], cx),
10315                vec!["first.txt".to_string(), "second.txt".to_string()],
10316            );
10317            workspace.move_item_to_pane_in_direction(
10318                &MoveItemToPaneInDirection {
10319                    direction: SplitDirection::Right,
10320                    focus: true,
10321                    clone: false,
10322                },
10323                window,
10324                cx,
10325            );
10326
10327            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
10328            assert_eq!(
10329                pane_items_paths(&workspace.panes[0], cx),
10330                vec!["first.txt".to_string()],
10331                "After moving, one item should be left in the original pane"
10332            );
10333            assert_eq!(
10334                pane_items_paths(&workspace.panes[1], cx),
10335                vec!["second.txt".to_string()],
10336                "New item should have been moved to the new pane"
10337            );
10338        });
10339
10340        let item_3 = cx.new(|cx| {
10341            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
10342        });
10343        workspace.update_in(cx, |workspace, window, cx| {
10344            let original_pane = workspace.panes[0].clone();
10345            workspace.set_active_pane(&original_pane, window, cx);
10346            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
10347            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
10348            assert_eq!(
10349                pane_items_paths(&workspace.active_pane, cx),
10350                vec!["first.txt".to_string(), "third.txt".to_string()],
10351                "New pane should be ready to move one item out"
10352            );
10353
10354            workspace.move_item_to_pane_at_index(
10355                &MoveItemToPane {
10356                    destination: 3,
10357                    focus: true,
10358                    clone: false,
10359                },
10360                window,
10361                cx,
10362            );
10363            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
10364            assert_eq!(
10365                pane_items_paths(&workspace.active_pane, cx),
10366                vec!["first.txt".to_string()],
10367                "After moving, one item should be left in the original pane"
10368            );
10369            assert_eq!(
10370                pane_items_paths(&workspace.panes[1], cx),
10371                vec!["second.txt".to_string()],
10372                "Previously created pane should be unchanged"
10373            );
10374            assert_eq!(
10375                pane_items_paths(&workspace.panes[2], cx),
10376                vec!["third.txt".to_string()],
10377                "New item should have been moved to the new pane"
10378            );
10379        });
10380    }
10381
10382    #[gpui::test]
10383    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
10384        init_test(cx);
10385
10386        let fs = FakeFs::new(cx.executor());
10387        let project = Project::test(fs, [], cx).await;
10388        let (workspace, cx) =
10389            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10390
10391        let item_1 = cx.new(|cx| {
10392            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10393        });
10394        workspace.update_in(cx, |workspace, window, cx| {
10395            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10396            workspace.move_item_to_pane_in_direction(
10397                &MoveItemToPaneInDirection {
10398                    direction: SplitDirection::Right,
10399                    focus: true,
10400                    clone: true,
10401                },
10402                window,
10403                cx,
10404            );
10405            workspace.move_item_to_pane_at_index(
10406                &MoveItemToPane {
10407                    destination: 3,
10408                    focus: true,
10409                    clone: true,
10410                },
10411                window,
10412                cx,
10413            );
10414
10415            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
10416            for pane in workspace.panes() {
10417                assert_eq!(
10418                    pane_items_paths(pane, cx),
10419                    vec!["first.txt".to_string()],
10420                    "Single item exists in all panes"
10421                );
10422            }
10423        });
10424
10425        // verify that the active pane has been updated after waiting for the
10426        // pane focus event to fire and resolve
10427        workspace.read_with(cx, |workspace, _app| {
10428            assert_eq!(
10429                workspace.active_pane(),
10430                &workspace.panes[2],
10431                "The third pane should be the active one: {:?}",
10432                workspace.panes
10433            );
10434        })
10435    }
10436
10437    mod register_project_item_tests {
10438
10439        use super::*;
10440
10441        // View
10442        struct TestPngItemView {
10443            focus_handle: FocusHandle,
10444        }
10445        // Model
10446        struct TestPngItem {}
10447
10448        impl project::ProjectItem for TestPngItem {
10449            fn try_open(
10450                _project: &Entity<Project>,
10451                path: &ProjectPath,
10452                cx: &mut App,
10453            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
10454                if path.path.extension().unwrap() == "png" {
10455                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
10456                } else {
10457                    None
10458                }
10459            }
10460
10461            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
10462                None
10463            }
10464
10465            fn project_path(&self, _: &App) -> Option<ProjectPath> {
10466                None
10467            }
10468
10469            fn is_dirty(&self) -> bool {
10470                false
10471            }
10472        }
10473
10474        impl Item for TestPngItemView {
10475            type Event = ();
10476            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10477                "".into()
10478            }
10479        }
10480        impl EventEmitter<()> for TestPngItemView {}
10481        impl Focusable for TestPngItemView {
10482            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10483                self.focus_handle.clone()
10484            }
10485        }
10486
10487        impl Render for TestPngItemView {
10488            fn render(
10489                &mut self,
10490                _window: &mut Window,
10491                _cx: &mut Context<Self>,
10492            ) -> impl IntoElement {
10493                Empty
10494            }
10495        }
10496
10497        impl ProjectItem for TestPngItemView {
10498            type Item = TestPngItem;
10499
10500            fn for_project_item(
10501                _project: Entity<Project>,
10502                _pane: Option<&Pane>,
10503                _item: Entity<Self::Item>,
10504                _: &mut Window,
10505                cx: &mut Context<Self>,
10506            ) -> Self
10507            where
10508                Self: Sized,
10509            {
10510                Self {
10511                    focus_handle: cx.focus_handle(),
10512                }
10513            }
10514        }
10515
10516        // View
10517        struct TestIpynbItemView {
10518            focus_handle: FocusHandle,
10519        }
10520        // Model
10521        struct TestIpynbItem {}
10522
10523        impl project::ProjectItem for TestIpynbItem {
10524            fn try_open(
10525                _project: &Entity<Project>,
10526                path: &ProjectPath,
10527                cx: &mut App,
10528            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
10529                if path.path.extension().unwrap() == "ipynb" {
10530                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
10531                } else {
10532                    None
10533                }
10534            }
10535
10536            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
10537                None
10538            }
10539
10540            fn project_path(&self, _: &App) -> Option<ProjectPath> {
10541                None
10542            }
10543
10544            fn is_dirty(&self) -> bool {
10545                false
10546            }
10547        }
10548
10549        impl Item for TestIpynbItemView {
10550            type Event = ();
10551            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10552                "".into()
10553            }
10554        }
10555        impl EventEmitter<()> for TestIpynbItemView {}
10556        impl Focusable for TestIpynbItemView {
10557            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10558                self.focus_handle.clone()
10559            }
10560        }
10561
10562        impl Render for TestIpynbItemView {
10563            fn render(
10564                &mut self,
10565                _window: &mut Window,
10566                _cx: &mut Context<Self>,
10567            ) -> impl IntoElement {
10568                Empty
10569            }
10570        }
10571
10572        impl ProjectItem for TestIpynbItemView {
10573            type Item = TestIpynbItem;
10574
10575            fn for_project_item(
10576                _project: Entity<Project>,
10577                _pane: Option<&Pane>,
10578                _item: Entity<Self::Item>,
10579                _: &mut Window,
10580                cx: &mut Context<Self>,
10581            ) -> Self
10582            where
10583                Self: Sized,
10584            {
10585                Self {
10586                    focus_handle: cx.focus_handle(),
10587                }
10588            }
10589        }
10590
10591        struct TestAlternatePngItemView {
10592            focus_handle: FocusHandle,
10593        }
10594
10595        impl Item for TestAlternatePngItemView {
10596            type Event = ();
10597            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10598                "".into()
10599            }
10600        }
10601
10602        impl EventEmitter<()> for TestAlternatePngItemView {}
10603        impl Focusable for TestAlternatePngItemView {
10604            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10605                self.focus_handle.clone()
10606            }
10607        }
10608
10609        impl Render for TestAlternatePngItemView {
10610            fn render(
10611                &mut self,
10612                _window: &mut Window,
10613                _cx: &mut Context<Self>,
10614            ) -> impl IntoElement {
10615                Empty
10616            }
10617        }
10618
10619        impl ProjectItem for TestAlternatePngItemView {
10620            type Item = TestPngItem;
10621
10622            fn for_project_item(
10623                _project: Entity<Project>,
10624                _pane: Option<&Pane>,
10625                _item: Entity<Self::Item>,
10626                _: &mut Window,
10627                cx: &mut Context<Self>,
10628            ) -> Self
10629            where
10630                Self: Sized,
10631            {
10632                Self {
10633                    focus_handle: cx.focus_handle(),
10634                }
10635            }
10636        }
10637
10638        #[gpui::test]
10639        async fn test_register_project_item(cx: &mut TestAppContext) {
10640            init_test(cx);
10641
10642            cx.update(|cx| {
10643                register_project_item::<TestPngItemView>(cx);
10644                register_project_item::<TestIpynbItemView>(cx);
10645            });
10646
10647            let fs = FakeFs::new(cx.executor());
10648            fs.insert_tree(
10649                "/root1",
10650                json!({
10651                    "one.png": "BINARYDATAHERE",
10652                    "two.ipynb": "{ totally a notebook }",
10653                    "three.txt": "editing text, sure why not?"
10654                }),
10655            )
10656            .await;
10657
10658            let project = Project::test(fs, ["root1".as_ref()], cx).await;
10659            let (workspace, cx) =
10660                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10661
10662            let worktree_id = project.update(cx, |project, cx| {
10663                project.worktrees(cx).next().unwrap().read(cx).id()
10664            });
10665
10666            let handle = workspace
10667                .update_in(cx, |workspace, window, cx| {
10668                    let project_path = (worktree_id, "one.png");
10669                    workspace.open_path(project_path, None, true, window, cx)
10670                })
10671                .await
10672                .unwrap();
10673
10674            // Now we can check if the handle we got back errored or not
10675            assert_eq!(
10676                handle.to_any().entity_type(),
10677                TypeId::of::<TestPngItemView>()
10678            );
10679
10680            let handle = workspace
10681                .update_in(cx, |workspace, window, cx| {
10682                    let project_path = (worktree_id, "two.ipynb");
10683                    workspace.open_path(project_path, None, true, window, cx)
10684                })
10685                .await
10686                .unwrap();
10687
10688            assert_eq!(
10689                handle.to_any().entity_type(),
10690                TypeId::of::<TestIpynbItemView>()
10691            );
10692
10693            let handle = workspace
10694                .update_in(cx, |workspace, window, cx| {
10695                    let project_path = (worktree_id, "three.txt");
10696                    workspace.open_path(project_path, None, true, window, cx)
10697                })
10698                .await;
10699            assert!(handle.is_err());
10700        }
10701
10702        #[gpui::test]
10703        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
10704            init_test(cx);
10705
10706            cx.update(|cx| {
10707                register_project_item::<TestPngItemView>(cx);
10708                register_project_item::<TestAlternatePngItemView>(cx);
10709            });
10710
10711            let fs = FakeFs::new(cx.executor());
10712            fs.insert_tree(
10713                "/root1",
10714                json!({
10715                    "one.png": "BINARYDATAHERE",
10716                    "two.ipynb": "{ totally a notebook }",
10717                    "three.txt": "editing text, sure why not?"
10718                }),
10719            )
10720            .await;
10721            let project = Project::test(fs, ["root1".as_ref()], cx).await;
10722            let (workspace, cx) =
10723                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10724            let worktree_id = project.update(cx, |project, cx| {
10725                project.worktrees(cx).next().unwrap().read(cx).id()
10726            });
10727
10728            let handle = workspace
10729                .update_in(cx, |workspace, window, cx| {
10730                    let project_path = (worktree_id, "one.png");
10731                    workspace.open_path(project_path, None, true, window, cx)
10732                })
10733                .await
10734                .unwrap();
10735
10736            // This _must_ be the second item registered
10737            assert_eq!(
10738                handle.to_any().entity_type(),
10739                TypeId::of::<TestAlternatePngItemView>()
10740            );
10741
10742            let handle = workspace
10743                .update_in(cx, |workspace, window, cx| {
10744                    let project_path = (worktree_id, "three.txt");
10745                    workspace.open_path(project_path, None, true, window, cx)
10746                })
10747                .await;
10748            assert!(handle.is_err());
10749        }
10750    }
10751
10752    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
10753        pane.read(cx)
10754            .items()
10755            .flat_map(|item| {
10756                item.project_paths(cx)
10757                    .into_iter()
10758                    .map(|path| path.path.to_string_lossy().to_string())
10759            })
10760            .collect()
10761    }
10762
10763    pub fn init_test(cx: &mut TestAppContext) {
10764        cx.update(|cx| {
10765            let settings_store = SettingsStore::test(cx);
10766            cx.set_global(settings_store);
10767            theme::init(theme::LoadThemes::JustBase, cx);
10768            language::init(cx);
10769            crate::init_settings(cx);
10770            Project::init_settings(cx);
10771        });
10772    }
10773
10774    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
10775        let item = TestProjectItem::new(id, path, cx);
10776        item.update(cx, |item, _| {
10777            item.is_dirty = true;
10778        });
10779        item
10780    }
10781}