workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod item;
    4mod modal_layer;
    5pub mod notifications;
    6pub mod pane;
    7pub mod pane_group;
    8mod persistence;
    9pub mod searchable;
   10pub mod shared_screen;
   11mod status_bar;
   12pub mod tasks;
   13mod theme_preview;
   14mod toast_layer;
   15mod toolbar;
   16mod workspace_settings;
   17
   18pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   19
   20use anyhow::{Context as _, Result, anyhow};
   21use call::{ActiveCall, call_settings::CallSettings};
   22use client::{
   23    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   24    proto::{self, ErrorCode, PanelId, PeerId},
   25};
   26use collections::{HashMap, HashSet, hash_map};
   27pub use dock::Panel;
   28use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   29use futures::{
   30    Future, FutureExt, StreamExt,
   31    channel::{
   32        mpsc::{self, UnboundedReceiver, UnboundedSender},
   33        oneshot,
   34    },
   35    future::{Shared, try_join_all},
   36};
   37use gpui::{
   38    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   39    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   40    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   41    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription, Task,
   42    Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId, WindowOptions, actions, canvas,
   43    point, relative, size, transparent_black,
   44};
   45pub use history_manager::*;
   46pub use item::{
   47    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   48    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   49};
   50use itertools::Itertools;
   51use language::{
   52    Buffer, LanguageRegistry, Rope,
   53    language_settings::{AllLanguageSettings, all_language_settings},
   54};
   55pub use modal_layer::*;
   56use node_runtime::NodeRuntime;
   57use notifications::{
   58    DetachAndPromptErr, Notifications, dismiss_app_notification,
   59    simple_message_notification::MessageNotification,
   60};
   61pub use pane::*;
   62pub use pane_group::*;
   63use persistence::{
   64    DB, SerializedWindowBounds,
   65    model::{SerializedSshProject, SerializedWorkspace},
   66};
   67pub use persistence::{
   68    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   69    model::{ItemId, LocalPaths, SerializedWorkspaceLocation},
   70};
   71use postage::stream::Stream;
   72use project::{
   73    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   74    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   75};
   76use remote::{SshClientDelegate, SshConnectionOptions, ssh_session::ConnectionIdentifier};
   77use schemars::JsonSchema;
   78use serde::Deserialize;
   79use session::AppSession;
   80use settings::{Settings, 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#[derive(Clone, PartialEq)]
  259pub struct OpenPaths {
  260    pub paths: Vec<PathBuf>,
  261}
  262
  263/// Activates a specific pane by its index.
  264#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  265#[action(namespace = workspace)]
  266pub struct ActivatePane(pub usize);
  267
  268/// Moves an item to a specific pane by index.
  269#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  270#[action(namespace = workspace)]
  271#[serde(deny_unknown_fields)]
  272pub struct MoveItemToPane {
  273    #[serde(default = "default_1")]
  274    pub destination: usize,
  275    #[serde(default = "default_true")]
  276    pub focus: bool,
  277    #[serde(default)]
  278    pub clone: bool,
  279}
  280
  281fn default_1() -> usize {
  282    1
  283}
  284
  285/// Moves an item to a pane in the specified direction.
  286#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  287#[action(namespace = workspace)]
  288#[serde(deny_unknown_fields)]
  289pub struct MoveItemToPaneInDirection {
  290    #[serde(default = "default_right")]
  291    pub direction: SplitDirection,
  292    #[serde(default = "default_true")]
  293    pub focus: bool,
  294    #[serde(default)]
  295    pub clone: bool,
  296}
  297
  298fn default_right() -> SplitDirection {
  299    SplitDirection::Right
  300}
  301
  302/// Saves all open files in the workspace.
  303#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  304#[action(namespace = workspace)]
  305#[serde(deny_unknown_fields)]
  306pub struct SaveAll {
  307    #[serde(default)]
  308    pub save_intent: Option<SaveIntent>,
  309}
  310
  311/// Saves the current file with the specified options.
  312#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  313#[action(namespace = workspace)]
  314#[serde(deny_unknown_fields)]
  315pub struct Save {
  316    #[serde(default)]
  317    pub save_intent: Option<SaveIntent>,
  318}
  319
  320/// Closes all items and panes in the workspace.
  321#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  322#[action(namespace = workspace)]
  323#[serde(deny_unknown_fields)]
  324pub struct CloseAllItemsAndPanes {
  325    #[serde(default)]
  326    pub save_intent: Option<SaveIntent>,
  327}
  328
  329/// Closes all inactive tabs and panes in the workspace.
  330#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  331#[action(namespace = workspace)]
  332#[serde(deny_unknown_fields)]
  333pub struct CloseInactiveTabsAndPanes {
  334    #[serde(default)]
  335    pub save_intent: Option<SaveIntent>,
  336}
  337
  338/// Sends a sequence of keystrokes to the active element.
  339#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  340#[action(namespace = workspace)]
  341pub struct SendKeystrokes(pub String);
  342
  343actions!(
  344    project_symbols,
  345    [
  346        /// Toggles the project symbols search.
  347        #[action(name = "Toggle")]
  348        ToggleProjectSymbols
  349    ]
  350);
  351
  352/// Toggles the file finder interface.
  353#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  354#[action(namespace = file_finder, name = "Toggle")]
  355#[serde(deny_unknown_fields)]
  356pub struct ToggleFileFinder {
  357    #[serde(default)]
  358    pub separate_history: bool,
  359}
  360
  361/// Increases size of a currently focused dock by a given amount of pixels.
  362#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  363#[action(namespace = workspace)]
  364#[serde(deny_unknown_fields)]
  365pub struct IncreaseActiveDockSize {
  366    /// For 0px parameter, uses UI font size value.
  367    #[serde(default)]
  368    pub px: u32,
  369}
  370
  371/// Decreases size of a currently focused dock by a given amount of pixels.
  372#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  373#[action(namespace = workspace)]
  374#[serde(deny_unknown_fields)]
  375pub struct DecreaseActiveDockSize {
  376    /// For 0px parameter, uses UI font size value.
  377    #[serde(default)]
  378    pub px: u32,
  379}
  380
  381/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  382#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  383#[action(namespace = workspace)]
  384#[serde(deny_unknown_fields)]
  385pub struct IncreaseOpenDocksSize {
  386    /// For 0px parameter, uses UI font size value.
  387    #[serde(default)]
  388    pub px: u32,
  389}
  390
  391/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  392#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  393#[action(namespace = workspace)]
  394#[serde(deny_unknown_fields)]
  395pub struct DecreaseOpenDocksSize {
  396    /// For 0px parameter, uses UI font size value.
  397    #[serde(default)]
  398    pub px: u32,
  399}
  400
  401actions!(
  402    workspace,
  403    [
  404        /// Activates the pane to the left.
  405        ActivatePaneLeft,
  406        /// Activates the pane to the right.
  407        ActivatePaneRight,
  408        /// Activates the pane above.
  409        ActivatePaneUp,
  410        /// Activates the pane below.
  411        ActivatePaneDown,
  412        /// Swaps the current pane with the one to the left.
  413        SwapPaneLeft,
  414        /// Swaps the current pane with the one to the right.
  415        SwapPaneRight,
  416        /// Swaps the current pane with the one above.
  417        SwapPaneUp,
  418        /// Swaps the current pane with the one below.
  419        SwapPaneDown,
  420    ]
  421);
  422
  423#[derive(PartialEq, Eq, Debug)]
  424pub enum CloseIntent {
  425    /// Quit the program entirely.
  426    Quit,
  427    /// Close a window.
  428    CloseWindow,
  429    /// Replace the workspace in an existing window.
  430    ReplaceWindow,
  431}
  432
  433#[derive(Clone)]
  434pub struct Toast {
  435    id: NotificationId,
  436    msg: Cow<'static, str>,
  437    autohide: bool,
  438    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  439}
  440
  441impl Toast {
  442    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  443        Toast {
  444            id,
  445            msg: msg.into(),
  446            on_click: None,
  447            autohide: false,
  448        }
  449    }
  450
  451    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  452    where
  453        M: Into<Cow<'static, str>>,
  454        F: Fn(&mut Window, &mut App) + 'static,
  455    {
  456        self.on_click = Some((message.into(), Arc::new(on_click)));
  457        self
  458    }
  459
  460    pub fn autohide(mut self) -> Self {
  461        self.autohide = true;
  462        self
  463    }
  464}
  465
  466impl PartialEq for Toast {
  467    fn eq(&self, other: &Self) -> bool {
  468        self.id == other.id
  469            && self.msg == other.msg
  470            && self.on_click.is_some() == other.on_click.is_some()
  471    }
  472}
  473
  474/// Opens a new terminal with the specified working directory.
  475#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  476#[action(namespace = workspace)]
  477#[serde(deny_unknown_fields)]
  478pub struct OpenTerminal {
  479    pub working_directory: PathBuf,
  480}
  481
  482#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  483pub struct WorkspaceId(i64);
  484
  485impl StaticColumnCount for WorkspaceId {}
  486impl Bind for WorkspaceId {
  487    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  488        self.0.bind(statement, start_index)
  489    }
  490}
  491impl Column for WorkspaceId {
  492    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  493        i64::column(statement, start_index)
  494            .map(|(i, next_index)| (Self(i), next_index))
  495            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  496    }
  497}
  498impl From<WorkspaceId> for i64 {
  499    fn from(val: WorkspaceId) -> Self {
  500        val.0
  501    }
  502}
  503
  504pub fn init_settings(cx: &mut App) {
  505    WorkspaceSettings::register(cx);
  506    ItemSettings::register(cx);
  507    PreviewTabsSettings::register(cx);
  508    TabBarSettings::register(cx);
  509}
  510
  511fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  512    let paths = cx.prompt_for_paths(options);
  513    cx.spawn(
  514        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  515            Ok(Some(paths)) => {
  516                cx.update(|cx| {
  517                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  518                })
  519                .ok();
  520            }
  521            Ok(None) => {}
  522            Err(err) => {
  523                util::log_err(&err);
  524                cx.update(|cx| {
  525                    if let Some(workspace_window) = cx
  526                        .active_window()
  527                        .and_then(|window| window.downcast::<Workspace>())
  528                    {
  529                        workspace_window
  530                            .update(cx, |workspace, _, cx| {
  531                                workspace.show_portal_error(err.to_string(), cx);
  532                            })
  533                            .ok();
  534                    }
  535                })
  536                .ok();
  537            }
  538        },
  539    )
  540    .detach();
  541}
  542
  543pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  544    init_settings(cx);
  545    component::init();
  546    theme_preview::init(cx);
  547    toast_layer::init(cx);
  548    history_manager::init(cx);
  549
  550    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx));
  551    cx.on_action(|_: &Reload, cx| reload(cx));
  552
  553    cx.on_action({
  554        let app_state = Arc::downgrade(&app_state);
  555        move |_: &Open, cx: &mut App| {
  556            if let Some(app_state) = app_state.upgrade() {
  557                prompt_and_open_paths(
  558                    app_state,
  559                    PathPromptOptions {
  560                        files: true,
  561                        directories: true,
  562                        multiple: true,
  563                    },
  564                    cx,
  565                );
  566            }
  567        }
  568    });
  569    cx.on_action({
  570        let app_state = Arc::downgrade(&app_state);
  571        move |_: &OpenFiles, cx: &mut App| {
  572            let directories = cx.can_select_mixed_files_and_dirs();
  573            if let Some(app_state) = app_state.upgrade() {
  574                prompt_and_open_paths(
  575                    app_state,
  576                    PathPromptOptions {
  577                        files: true,
  578                        directories,
  579                        multiple: true,
  580                    },
  581                    cx,
  582                );
  583            }
  584        }
  585    });
  586}
  587
  588type BuildProjectItemFn =
  589    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  590
  591type BuildProjectItemForPathFn =
  592    fn(
  593        &Entity<Project>,
  594        &ProjectPath,
  595        &mut Window,
  596        &mut App,
  597    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  598
  599#[derive(Clone, Default)]
  600struct ProjectItemRegistry {
  601    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  602    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  603}
  604
  605impl ProjectItemRegistry {
  606    fn register<T: ProjectItem>(&mut self) {
  607        self.build_project_item_fns_by_type.insert(
  608            TypeId::of::<T::Item>(),
  609            |item, project, pane, window, cx| {
  610                let item = item.downcast().unwrap();
  611                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  612                    as Box<dyn ItemHandle>
  613            },
  614        );
  615        self.build_project_item_for_path_fns
  616            .push(|project, project_path, window, cx| {
  617                let project_item =
  618                    <T::Item as project::ProjectItem>::try_open(project, project_path, cx)?;
  619                let project = project.clone();
  620                Some(window.spawn(cx, async move |cx| {
  621                    let project_item = project_item.await?;
  622                    let project_entry_id: Option<ProjectEntryId> =
  623                        project_item.read_with(cx, project::ProjectItem::entry_id)?;
  624                    let build_workspace_item = Box::new(
  625                        |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  626                            Box::new(cx.new(|cx| {
  627                                T::for_project_item(project, Some(pane), project_item, window, cx)
  628                            })) as Box<dyn ItemHandle>
  629                        },
  630                    ) as Box<_>;
  631                    Ok((project_entry_id, build_workspace_item))
  632                }))
  633            });
  634    }
  635
  636    fn open_path(
  637        &self,
  638        project: &Entity<Project>,
  639        path: &ProjectPath,
  640        window: &mut Window,
  641        cx: &mut App,
  642    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  643        let Some(open_project_item) = self
  644            .build_project_item_for_path_fns
  645            .iter()
  646            .rev()
  647            .find_map(|open_project_item| open_project_item(&project, &path, window, cx))
  648        else {
  649            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  650        };
  651        open_project_item
  652    }
  653
  654    fn build_item<T: project::ProjectItem>(
  655        &self,
  656        item: Entity<T>,
  657        project: Entity<Project>,
  658        pane: Option<&Pane>,
  659        window: &mut Window,
  660        cx: &mut App,
  661    ) -> Option<Box<dyn ItemHandle>> {
  662        let build = self
  663            .build_project_item_fns_by_type
  664            .get(&TypeId::of::<T>())?;
  665        Some(build(item.into_any(), project, pane, window, cx))
  666    }
  667}
  668
  669type WorkspaceItemBuilder =
  670    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  671
  672impl Global for ProjectItemRegistry {}
  673
  674/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  675/// items will get a chance to open the file, starting from the project item that
  676/// was added last.
  677pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  678    cx.default_global::<ProjectItemRegistry>().register::<I>();
  679}
  680
  681#[derive(Default)]
  682pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  683
  684struct FollowableViewDescriptor {
  685    from_state_proto: fn(
  686        Entity<Workspace>,
  687        ViewId,
  688        &mut Option<proto::view::Variant>,
  689        &mut Window,
  690        &mut App,
  691    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  692    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  693}
  694
  695impl Global for FollowableViewRegistry {}
  696
  697impl FollowableViewRegistry {
  698    pub fn register<I: FollowableItem>(cx: &mut App) {
  699        cx.default_global::<Self>().0.insert(
  700            TypeId::of::<I>(),
  701            FollowableViewDescriptor {
  702                from_state_proto: |workspace, id, state, window, cx| {
  703                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  704                        cx.foreground_executor()
  705                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  706                    })
  707                },
  708                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  709            },
  710        );
  711    }
  712
  713    pub fn from_state_proto(
  714        workspace: Entity<Workspace>,
  715        view_id: ViewId,
  716        mut state: Option<proto::view::Variant>,
  717        window: &mut Window,
  718        cx: &mut App,
  719    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  720        cx.update_default_global(|this: &mut Self, cx| {
  721            this.0.values().find_map(|descriptor| {
  722                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  723            })
  724        })
  725    }
  726
  727    pub fn to_followable_view(
  728        view: impl Into<AnyView>,
  729        cx: &App,
  730    ) -> Option<Box<dyn FollowableItemHandle>> {
  731        let this = cx.try_global::<Self>()?;
  732        let view = view.into();
  733        let descriptor = this.0.get(&view.entity_type())?;
  734        Some((descriptor.to_followable_view)(&view))
  735    }
  736}
  737
  738#[derive(Copy, Clone)]
  739struct SerializableItemDescriptor {
  740    deserialize: fn(
  741        Entity<Project>,
  742        WeakEntity<Workspace>,
  743        WorkspaceId,
  744        ItemId,
  745        &mut Window,
  746        &mut Context<Pane>,
  747    ) -> Task<Result<Box<dyn ItemHandle>>>,
  748    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  749    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  750}
  751
  752#[derive(Default)]
  753struct SerializableItemRegistry {
  754    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  755    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  756}
  757
  758impl Global for SerializableItemRegistry {}
  759
  760impl SerializableItemRegistry {
  761    fn deserialize(
  762        item_kind: &str,
  763        project: Entity<Project>,
  764        workspace: WeakEntity<Workspace>,
  765        workspace_id: WorkspaceId,
  766        item_item: ItemId,
  767        window: &mut Window,
  768        cx: &mut Context<Pane>,
  769    ) -> Task<Result<Box<dyn ItemHandle>>> {
  770        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  771            return Task::ready(Err(anyhow!(
  772                "cannot deserialize {}, descriptor not found",
  773                item_kind
  774            )));
  775        };
  776
  777        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  778    }
  779
  780    fn cleanup(
  781        item_kind: &str,
  782        workspace_id: WorkspaceId,
  783        loaded_items: Vec<ItemId>,
  784        window: &mut Window,
  785        cx: &mut App,
  786    ) -> Task<Result<()>> {
  787        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  788            return Task::ready(Err(anyhow!(
  789                "cannot cleanup {}, descriptor not found",
  790                item_kind
  791            )));
  792        };
  793
  794        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  795    }
  796
  797    fn view_to_serializable_item_handle(
  798        view: AnyView,
  799        cx: &App,
  800    ) -> Option<Box<dyn SerializableItemHandle>> {
  801        let this = cx.try_global::<Self>()?;
  802        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  803        Some((descriptor.view_to_serializable_item)(view))
  804    }
  805
  806    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  807        let this = cx.try_global::<Self>()?;
  808        this.descriptors_by_kind.get(item_kind).copied()
  809    }
  810}
  811
  812pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  813    let serialized_item_kind = I::serialized_item_kind();
  814
  815    let registry = cx.default_global::<SerializableItemRegistry>();
  816    let descriptor = SerializableItemDescriptor {
  817        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  818            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  819            cx.foreground_executor()
  820                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  821        },
  822        cleanup: |workspace_id, loaded_items, window, cx| {
  823            I::cleanup(workspace_id, loaded_items, window, cx)
  824        },
  825        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  826    };
  827    registry
  828        .descriptors_by_kind
  829        .insert(Arc::from(serialized_item_kind), descriptor);
  830    registry
  831        .descriptors_by_type
  832        .insert(TypeId::of::<I>(), descriptor);
  833}
  834
  835pub struct AppState {
  836    pub languages: Arc<LanguageRegistry>,
  837    pub client: Arc<Client>,
  838    pub user_store: Entity<UserStore>,
  839    pub workspace_store: Entity<WorkspaceStore>,
  840    pub fs: Arc<dyn fs::Fs>,
  841    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  842    pub node_runtime: NodeRuntime,
  843    pub session: Entity<AppSession>,
  844}
  845
  846struct GlobalAppState(Weak<AppState>);
  847
  848impl Global for GlobalAppState {}
  849
  850pub struct WorkspaceStore {
  851    workspaces: HashSet<WindowHandle<Workspace>>,
  852    client: Arc<Client>,
  853    _subscriptions: Vec<client::Subscription>,
  854}
  855
  856#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  857pub enum CollaboratorId {
  858    PeerId(PeerId),
  859    Agent,
  860}
  861
  862impl From<PeerId> for CollaboratorId {
  863    fn from(peer_id: PeerId) -> Self {
  864        CollaboratorId::PeerId(peer_id)
  865    }
  866}
  867
  868impl From<&PeerId> for CollaboratorId {
  869    fn from(peer_id: &PeerId) -> Self {
  870        CollaboratorId::PeerId(*peer_id)
  871    }
  872}
  873
  874#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  875struct Follower {
  876    project_id: Option<u64>,
  877    peer_id: PeerId,
  878}
  879
  880impl AppState {
  881    #[track_caller]
  882    pub fn global(cx: &App) -> Weak<Self> {
  883        cx.global::<GlobalAppState>().0.clone()
  884    }
  885    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  886        cx.try_global::<GlobalAppState>()
  887            .map(|state| state.0.clone())
  888    }
  889    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  890        cx.set_global(GlobalAppState(state));
  891    }
  892
  893    #[cfg(any(test, feature = "test-support"))]
  894    pub fn test(cx: &mut App) -> Arc<Self> {
  895        use node_runtime::NodeRuntime;
  896        use session::Session;
  897        use settings::SettingsStore;
  898
  899        if !cx.has_global::<SettingsStore>() {
  900            let settings_store = SettingsStore::test(cx);
  901            cx.set_global(settings_store);
  902        }
  903
  904        let fs = fs::FakeFs::new(cx.background_executor().clone());
  905        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
  906        let clock = Arc::new(clock::FakeSystemClock::new());
  907        let http_client = http_client::FakeHttpClient::with_404_response();
  908        let client = Client::new(clock, http_client.clone(), cx);
  909        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
  910        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
  911        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
  912
  913        theme::init(theme::LoadThemes::JustBase, cx);
  914        client::init(&client, cx);
  915        crate::init_settings(cx);
  916
  917        Arc::new(Self {
  918            client,
  919            fs,
  920            languages,
  921            user_store,
  922            workspace_store,
  923            node_runtime: NodeRuntime::unavailable(),
  924            build_window_options: |_, _| Default::default(),
  925            session,
  926        })
  927    }
  928}
  929
  930struct DelayedDebouncedEditAction {
  931    task: Option<Task<()>>,
  932    cancel_channel: Option<oneshot::Sender<()>>,
  933}
  934
  935impl DelayedDebouncedEditAction {
  936    fn new() -> DelayedDebouncedEditAction {
  937        DelayedDebouncedEditAction {
  938            task: None,
  939            cancel_channel: None,
  940        }
  941    }
  942
  943    fn fire_new<F>(
  944        &mut self,
  945        delay: Duration,
  946        window: &mut Window,
  947        cx: &mut Context<Workspace>,
  948        func: F,
  949    ) where
  950        F: 'static
  951            + Send
  952            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
  953    {
  954        if let Some(channel) = self.cancel_channel.take() {
  955            _ = channel.send(());
  956        }
  957
  958        let (sender, mut receiver) = oneshot::channel::<()>();
  959        self.cancel_channel = Some(sender);
  960
  961        let previous_task = self.task.take();
  962        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
  963            let mut timer = cx.background_executor().timer(delay).fuse();
  964            if let Some(previous_task) = previous_task {
  965                previous_task.await;
  966            }
  967
  968            futures::select_biased! {
  969                _ = receiver => return,
  970                    _ = timer => {}
  971            }
  972
  973            if let Some(result) = workspace
  974                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
  975                .log_err()
  976            {
  977                result.await.log_err();
  978            }
  979        }));
  980    }
  981}
  982
  983pub enum Event {
  984    PaneAdded(Entity<Pane>),
  985    PaneRemoved,
  986    ItemAdded {
  987        item: Box<dyn ItemHandle>,
  988    },
  989    ItemRemoved,
  990    ActiveItemChanged,
  991    UserSavedItem {
  992        pane: WeakEntity<Pane>,
  993        item: Box<dyn WeakItemHandle>,
  994        save_intent: SaveIntent,
  995    },
  996    ContactRequestedJoin(u64),
  997    WorkspaceCreated(WeakEntity<Workspace>),
  998    OpenBundledFile {
  999        text: Cow<'static, str>,
 1000        title: &'static str,
 1001        language: &'static str,
 1002    },
 1003    ZoomChanged,
 1004    ModalOpened,
 1005    ClearActivityIndicator,
 1006}
 1007
 1008#[derive(Debug)]
 1009pub enum OpenVisible {
 1010    All,
 1011    None,
 1012    OnlyFiles,
 1013    OnlyDirectories,
 1014}
 1015
 1016enum WorkspaceLocation {
 1017    // Valid local paths or SSH project to serialize
 1018    Location(SerializedWorkspaceLocation),
 1019    // No valid location found hence clear session id
 1020    DetachFromSession,
 1021    // No valid location found to serialize
 1022    None,
 1023}
 1024
 1025type PromptForNewPath = Box<
 1026    dyn Fn(
 1027        &mut Workspace,
 1028        DirectoryLister,
 1029        &mut Window,
 1030        &mut Context<Workspace>,
 1031    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1032>;
 1033
 1034type PromptForOpenPath = Box<
 1035    dyn Fn(
 1036        &mut Workspace,
 1037        DirectoryLister,
 1038        &mut Window,
 1039        &mut Context<Workspace>,
 1040    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1041>;
 1042
 1043#[derive(Default)]
 1044struct DispatchingKeystrokes {
 1045    dispatched: HashSet<Vec<Keystroke>>,
 1046    queue: VecDeque<Keystroke>,
 1047    task: Option<Shared<Task<()>>>,
 1048}
 1049
 1050/// Collects everything project-related for a certain window opened.
 1051/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1052///
 1053/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1054/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1055/// that can be used to register a global action to be triggered from any place in the window.
 1056pub struct Workspace {
 1057    weak_self: WeakEntity<Self>,
 1058    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1059    zoomed: Option<AnyWeakView>,
 1060    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1061    zoomed_position: Option<DockPosition>,
 1062    center: PaneGroup,
 1063    left_dock: Entity<Dock>,
 1064    bottom_dock: Entity<Dock>,
 1065    right_dock: Entity<Dock>,
 1066    panes: Vec<Entity<Pane>>,
 1067    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1068    active_pane: Entity<Pane>,
 1069    last_active_center_pane: Option<WeakEntity<Pane>>,
 1070    last_active_view_id: Option<proto::ViewId>,
 1071    status_bar: Entity<StatusBar>,
 1072    modal_layer: Entity<ModalLayer>,
 1073    toast_layer: Entity<ToastLayer>,
 1074    titlebar_item: Option<AnyView>,
 1075    notifications: Notifications,
 1076    suppressed_notifications: HashSet<NotificationId>,
 1077    project: Entity<Project>,
 1078    follower_states: HashMap<CollaboratorId, FollowerState>,
 1079    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1080    window_edited: bool,
 1081    last_window_title: Option<String>,
 1082    dirty_items: HashMap<EntityId, Subscription>,
 1083    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1084    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1085    database_id: Option<WorkspaceId>,
 1086    app_state: Arc<AppState>,
 1087    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1088    _subscriptions: Vec<Subscription>,
 1089    _apply_leader_updates: Task<Result<()>>,
 1090    _observe_current_user: Task<Result<()>>,
 1091    _schedule_serialize_workspace: Option<Task<()>>,
 1092    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1093    pane_history_timestamp: Arc<AtomicUsize>,
 1094    bounds: Bounds<Pixels>,
 1095    pub centered_layout: bool,
 1096    bounds_save_task_queued: Option<Task<()>>,
 1097    on_prompt_for_new_path: Option<PromptForNewPath>,
 1098    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1099    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1100    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1101    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1102    serialized_ssh_project: Option<SerializedSshProject>,
 1103    _items_serializer: Task<Result<()>>,
 1104    session_id: Option<String>,
 1105    scheduled_tasks: Vec<Task<()>>,
 1106}
 1107
 1108impl EventEmitter<Event> for Workspace {}
 1109
 1110#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1111pub struct ViewId {
 1112    pub creator: CollaboratorId,
 1113    pub id: u64,
 1114}
 1115
 1116pub struct FollowerState {
 1117    center_pane: Entity<Pane>,
 1118    dock_pane: Option<Entity<Pane>>,
 1119    active_view_id: Option<ViewId>,
 1120    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1121}
 1122
 1123struct FollowerView {
 1124    view: Box<dyn FollowableItemHandle>,
 1125    location: Option<proto::PanelId>,
 1126}
 1127
 1128impl Workspace {
 1129    const DEFAULT_PADDING: f32 = 0.2;
 1130    const MAX_PADDING: f32 = 0.4;
 1131
 1132    pub fn new(
 1133        workspace_id: Option<WorkspaceId>,
 1134        project: Entity<Project>,
 1135        app_state: Arc<AppState>,
 1136        window: &mut Window,
 1137        cx: &mut Context<Self>,
 1138    ) -> Self {
 1139        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1140            match event {
 1141                project::Event::RemoteIdChanged(_) => {
 1142                    this.update_window_title(window, cx);
 1143                }
 1144
 1145                project::Event::CollaboratorLeft(peer_id) => {
 1146                    this.collaborator_left(*peer_id, window, cx);
 1147                }
 1148
 1149                project::Event::WorktreeRemoved(_) | project::Event::WorktreeAdded(_) => {
 1150                    this.update_window_title(window, cx);
 1151                    this.update_ssh_paths(cx);
 1152                    this.serialize_ssh_paths(window, cx);
 1153                    this.serialize_workspace(window, cx);
 1154                    // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 1155                    this.update_history(cx);
 1156                }
 1157
 1158                project::Event::DisconnectedFromHost => {
 1159                    this.update_window_edited(window, cx);
 1160                    let leaders_to_unfollow =
 1161                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1162                    for leader_id in leaders_to_unfollow {
 1163                        this.unfollow(leader_id, window, cx);
 1164                    }
 1165                }
 1166
 1167                project::Event::DisconnectedFromSshRemote => {
 1168                    this.update_window_edited(window, cx);
 1169                }
 1170
 1171                project::Event::Closed => {
 1172                    window.remove_window();
 1173                }
 1174
 1175                project::Event::DeletedEntry(_, entry_id) => {
 1176                    for pane in this.panes.iter() {
 1177                        pane.update(cx, |pane, cx| {
 1178                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1179                        });
 1180                    }
 1181                }
 1182
 1183                project::Event::Toast {
 1184                    notification_id,
 1185                    message,
 1186                } => this.show_notification(
 1187                    NotificationId::named(notification_id.clone()),
 1188                    cx,
 1189                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1190                ),
 1191
 1192                project::Event::HideToast { notification_id } => {
 1193                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1194                }
 1195
 1196                project::Event::LanguageServerPrompt(request) => {
 1197                    struct LanguageServerPrompt;
 1198
 1199                    let mut hasher = DefaultHasher::new();
 1200                    request.lsp_name.as_str().hash(&mut hasher);
 1201                    let id = hasher.finish();
 1202
 1203                    this.show_notification(
 1204                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1205                        cx,
 1206                        |cx| {
 1207                            cx.new(|cx| {
 1208                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1209                            })
 1210                        },
 1211                    );
 1212                }
 1213
 1214                project::Event::AgentLocationChanged => {
 1215                    this.handle_agent_location_changed(window, cx)
 1216                }
 1217
 1218                _ => {}
 1219            }
 1220            cx.notify()
 1221        })
 1222        .detach();
 1223
 1224        cx.subscribe_in(
 1225            &project.read(cx).breakpoint_store(),
 1226            window,
 1227            |workspace, _, event, window, cx| match event {
 1228                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1229                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1230                    workspace.serialize_workspace(window, cx);
 1231                }
 1232                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1233            },
 1234        )
 1235        .detach();
 1236
 1237        cx.on_focus_lost(window, |this, window, cx| {
 1238            let focus_handle = this.focus_handle(cx);
 1239            window.focus(&focus_handle);
 1240        })
 1241        .detach();
 1242
 1243        let weak_handle = cx.entity().downgrade();
 1244        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1245
 1246        let center_pane = cx.new(|cx| {
 1247            let mut center_pane = Pane::new(
 1248                weak_handle.clone(),
 1249                project.clone(),
 1250                pane_history_timestamp.clone(),
 1251                None,
 1252                NewFile.boxed_clone(),
 1253                window,
 1254                cx,
 1255            );
 1256            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1257            center_pane
 1258        });
 1259        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1260            .detach();
 1261
 1262        window.focus(&center_pane.focus_handle(cx));
 1263
 1264        cx.emit(Event::PaneAdded(center_pane.clone()));
 1265
 1266        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1267        app_state.workspace_store.update(cx, |store, _| {
 1268            store.workspaces.insert(window_handle);
 1269        });
 1270
 1271        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1272        let mut connection_status = app_state.client.status();
 1273        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1274            current_user.next().await;
 1275            connection_status.next().await;
 1276            let mut stream =
 1277                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1278
 1279            while stream.recv().await.is_some() {
 1280                this.update(cx, |_, cx| cx.notify())?;
 1281            }
 1282            anyhow::Ok(())
 1283        });
 1284
 1285        // All leader updates are enqueued and then processed in a single task, so
 1286        // that each asynchronous operation can be run in order.
 1287        let (leader_updates_tx, mut leader_updates_rx) =
 1288            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1289        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1290            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1291                Self::process_leader_update(&this, leader_id, update, cx)
 1292                    .await
 1293                    .log_err();
 1294            }
 1295
 1296            Ok(())
 1297        });
 1298
 1299        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1300        let modal_layer = cx.new(|_| ModalLayer::new());
 1301        let toast_layer = cx.new(|_| ToastLayer::new());
 1302        cx.subscribe(
 1303            &modal_layer,
 1304            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1305                cx.emit(Event::ModalOpened);
 1306            },
 1307        )
 1308        .detach();
 1309
 1310        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1311        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1312        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1313        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1314        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1315        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1316        let status_bar = cx.new(|cx| {
 1317            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1318            status_bar.add_left_item(left_dock_buttons, window, cx);
 1319            status_bar.add_right_item(right_dock_buttons, window, cx);
 1320            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1321            status_bar
 1322        });
 1323
 1324        let session_id = app_state.session.read(cx).id().to_owned();
 1325
 1326        let mut active_call = None;
 1327        if let Some(call) = ActiveCall::try_global(cx) {
 1328            let call = call.clone();
 1329            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1330            active_call = Some((call, subscriptions));
 1331        }
 1332
 1333        let (serializable_items_tx, serializable_items_rx) =
 1334            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1335        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1336            Self::serialize_items(&this, serializable_items_rx, cx).await
 1337        });
 1338
 1339        let subscriptions = vec![
 1340            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1341            cx.observe_window_bounds(window, move |this, window, cx| {
 1342                if this.bounds_save_task_queued.is_some() {
 1343                    return;
 1344                }
 1345                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1346                    cx.background_executor()
 1347                        .timer(Duration::from_millis(100))
 1348                        .await;
 1349                    this.update_in(cx, |this, window, cx| {
 1350                        if let Some(display) = window.display(cx) {
 1351                            if let Ok(display_uuid) = display.uuid() {
 1352                                let window_bounds = window.inner_window_bounds();
 1353                                if let Some(database_id) = workspace_id {
 1354                                    cx.background_executor()
 1355                                        .spawn(DB.set_window_open_status(
 1356                                            database_id,
 1357                                            SerializedWindowBounds(window_bounds),
 1358                                            display_uuid,
 1359                                        ))
 1360                                        .detach_and_log_err(cx);
 1361                                }
 1362                            }
 1363                        }
 1364                        this.bounds_save_task_queued.take();
 1365                    })
 1366                    .ok();
 1367                }));
 1368                cx.notify();
 1369            }),
 1370            cx.observe_window_appearance(window, |_, window, cx| {
 1371                let window_appearance = window.appearance();
 1372
 1373                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1374
 1375                ThemeSettings::reload_current_theme(cx);
 1376                ThemeSettings::reload_current_icon_theme(cx);
 1377            }),
 1378            cx.on_release(move |this, cx| {
 1379                this.app_state.workspace_store.update(cx, move |store, _| {
 1380                    store.workspaces.remove(&window_handle.clone());
 1381                })
 1382            }),
 1383        ];
 1384
 1385        cx.defer_in(window, |this, window, cx| {
 1386            this.update_window_title(window, cx);
 1387            this.show_initial_notifications(cx);
 1388        });
 1389        Workspace {
 1390            weak_self: weak_handle.clone(),
 1391            zoomed: None,
 1392            zoomed_position: None,
 1393            previous_dock_drag_coordinates: None,
 1394            center: PaneGroup::new(center_pane.clone()),
 1395            panes: vec![center_pane.clone()],
 1396            panes_by_item: Default::default(),
 1397            active_pane: center_pane.clone(),
 1398            last_active_center_pane: Some(center_pane.downgrade()),
 1399            last_active_view_id: None,
 1400            status_bar,
 1401            modal_layer,
 1402            toast_layer,
 1403            titlebar_item: None,
 1404            notifications: Notifications::default(),
 1405            suppressed_notifications: HashSet::default(),
 1406            left_dock,
 1407            bottom_dock,
 1408            right_dock,
 1409            project: project.clone(),
 1410            follower_states: Default::default(),
 1411            last_leaders_by_pane: Default::default(),
 1412            dispatching_keystrokes: Default::default(),
 1413            window_edited: false,
 1414            last_window_title: None,
 1415            dirty_items: Default::default(),
 1416            active_call,
 1417            database_id: workspace_id,
 1418            app_state,
 1419            _observe_current_user,
 1420            _apply_leader_updates,
 1421            _schedule_serialize_workspace: None,
 1422            _schedule_serialize_ssh_paths: None,
 1423            leader_updates_tx,
 1424            _subscriptions: subscriptions,
 1425            pane_history_timestamp,
 1426            workspace_actions: Default::default(),
 1427            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1428            bounds: Default::default(),
 1429            centered_layout: false,
 1430            bounds_save_task_queued: None,
 1431            on_prompt_for_new_path: None,
 1432            on_prompt_for_open_path: None,
 1433            terminal_provider: None,
 1434            debugger_provider: None,
 1435            serializable_items_tx,
 1436            _items_serializer,
 1437            session_id: Some(session_id),
 1438            serialized_ssh_project: None,
 1439            scheduled_tasks: Vec::new(),
 1440        }
 1441    }
 1442
 1443    pub fn new_local(
 1444        abs_paths: Vec<PathBuf>,
 1445        app_state: Arc<AppState>,
 1446        requesting_window: Option<WindowHandle<Workspace>>,
 1447        env: Option<HashMap<String, String>>,
 1448        cx: &mut App,
 1449    ) -> Task<
 1450        anyhow::Result<(
 1451            WindowHandle<Workspace>,
 1452            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1453        )>,
 1454    > {
 1455        let project_handle = Project::local(
 1456            app_state.client.clone(),
 1457            app_state.node_runtime.clone(),
 1458            app_state.user_store.clone(),
 1459            app_state.languages.clone(),
 1460            app_state.fs.clone(),
 1461            env,
 1462            cx,
 1463        );
 1464
 1465        cx.spawn(async move |cx| {
 1466            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1467            for path in abs_paths.into_iter() {
 1468                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1469                    paths_to_open.push(canonical)
 1470                } else {
 1471                    paths_to_open.push(path)
 1472                }
 1473            }
 1474
 1475            let serialized_workspace =
 1476                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1477
 1478            let workspace_location = serialized_workspace
 1479                .as_ref()
 1480                .map(|ws| &ws.location)
 1481                .and_then(|loc| match loc {
 1482                    SerializedWorkspaceLocation::Local(_, order) => {
 1483                        Some((loc.sorted_paths(), order.order()))
 1484                    }
 1485                    _ => None,
 1486                });
 1487
 1488            if let Some((paths, order)) = workspace_location {
 1489                paths_to_open = paths.iter().cloned().collect();
 1490
 1491                if order.iter().enumerate().any(|(i, &j)| i != j) {
 1492                    project_handle
 1493                        .update(cx, |project, cx| {
 1494                            project.set_worktrees_reordered(true, cx);
 1495                        })
 1496                        .log_err();
 1497                }
 1498            }
 1499
 1500            // Get project paths for all of the abs_paths
 1501            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1502                Vec::with_capacity(paths_to_open.len());
 1503
 1504            for path in paths_to_open.into_iter() {
 1505                if let Some((_, project_entry)) = cx
 1506                    .update(|cx| {
 1507                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1508                    })?
 1509                    .await
 1510                    .log_err()
 1511                {
 1512                    project_paths.push((path, Some(project_entry)));
 1513                } else {
 1514                    project_paths.push((path, None));
 1515                }
 1516            }
 1517
 1518            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1519                serialized_workspace.id
 1520            } else {
 1521                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1522            };
 1523
 1524            let toolchains = DB.toolchains(workspace_id).await?;
 1525
 1526            for (toolchain, worktree_id, path) in toolchains {
 1527                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1528                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1529                    continue;
 1530                }
 1531
 1532                project_handle
 1533                    .update(cx, |this, cx| {
 1534                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1535                    })?
 1536                    .await;
 1537            }
 1538            let window = if let Some(window) = requesting_window {
 1539                let centered_layout = serialized_workspace
 1540                    .as_ref()
 1541                    .map(|w| w.centered_layout)
 1542                    .unwrap_or(false);
 1543
 1544                cx.update_window(window.into(), |_, window, cx| {
 1545                    window.replace_root(cx, |window, cx| {
 1546                        let mut workspace = Workspace::new(
 1547                            Some(workspace_id),
 1548                            project_handle.clone(),
 1549                            app_state.clone(),
 1550                            window,
 1551                            cx,
 1552                        );
 1553
 1554                        workspace.centered_layout = centered_layout;
 1555                        workspace
 1556                    });
 1557                })?;
 1558                window
 1559            } else {
 1560                let window_bounds_override = window_bounds_env_override();
 1561
 1562                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1563                    (Some(WindowBounds::Windowed(bounds)), None)
 1564                } else {
 1565                    let restorable_bounds = serialized_workspace
 1566                        .as_ref()
 1567                        .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 1568                        .or_else(|| {
 1569                            let (display, window_bounds) = DB.last_window().log_err()?;
 1570                            Some((display?, window_bounds?))
 1571                        });
 1572
 1573                    if let Some((serialized_display, serialized_status)) = restorable_bounds {
 1574                        (Some(serialized_status.0), Some(serialized_display))
 1575                    } else {
 1576                        (None, None)
 1577                    }
 1578                };
 1579
 1580                // Use the serialized workspace to construct the new window
 1581                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1582                options.window_bounds = window_bounds;
 1583                let centered_layout = serialized_workspace
 1584                    .as_ref()
 1585                    .map(|w| w.centered_layout)
 1586                    .unwrap_or(false);
 1587                cx.open_window(options, {
 1588                    let app_state = app_state.clone();
 1589                    let project_handle = project_handle.clone();
 1590                    move |window, cx| {
 1591                        cx.new(|cx| {
 1592                            let mut workspace = Workspace::new(
 1593                                Some(workspace_id),
 1594                                project_handle,
 1595                                app_state,
 1596                                window,
 1597                                cx,
 1598                            );
 1599                            workspace.centered_layout = centered_layout;
 1600                            workspace
 1601                        })
 1602                    }
 1603                })?
 1604            };
 1605
 1606            notify_if_database_failed(window, cx);
 1607            let opened_items = window
 1608                .update(cx, |_workspace, window, cx| {
 1609                    open_items(serialized_workspace, project_paths, window, cx)
 1610                })?
 1611                .await
 1612                .unwrap_or_default();
 1613
 1614            window
 1615                .update(cx, |workspace, window, cx| {
 1616                    window.activate_window();
 1617                    workspace.update_history(cx);
 1618                })
 1619                .log_err();
 1620            Ok((window, opened_items))
 1621        })
 1622    }
 1623
 1624    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1625        self.weak_self.clone()
 1626    }
 1627
 1628    pub fn left_dock(&self) -> &Entity<Dock> {
 1629        &self.left_dock
 1630    }
 1631
 1632    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1633        &self.bottom_dock
 1634    }
 1635
 1636    pub fn set_bottom_dock_layout(
 1637        &mut self,
 1638        layout: BottomDockLayout,
 1639        window: &mut Window,
 1640        cx: &mut Context<Self>,
 1641    ) {
 1642        let fs = self.project().read(cx).fs();
 1643        settings::update_settings_file::<WorkspaceSettings>(fs.clone(), cx, move |content, _cx| {
 1644            content.bottom_dock_layout = Some(layout);
 1645        });
 1646
 1647        cx.notify();
 1648        self.serialize_workspace(window, cx);
 1649    }
 1650
 1651    pub fn right_dock(&self) -> &Entity<Dock> {
 1652        &self.right_dock
 1653    }
 1654
 1655    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1656        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1657    }
 1658
 1659    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1660        match position {
 1661            DockPosition::Left => &self.left_dock,
 1662            DockPosition::Bottom => &self.bottom_dock,
 1663            DockPosition::Right => &self.right_dock,
 1664        }
 1665    }
 1666
 1667    pub fn is_edited(&self) -> bool {
 1668        self.window_edited
 1669    }
 1670
 1671    pub fn add_panel<T: Panel>(
 1672        &mut self,
 1673        panel: Entity<T>,
 1674        window: &mut Window,
 1675        cx: &mut Context<Self>,
 1676    ) {
 1677        let focus_handle = panel.panel_focus_handle(cx);
 1678        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1679            .detach();
 1680
 1681        let dock_position = panel.position(window, cx);
 1682        let dock = self.dock_at_position(dock_position);
 1683
 1684        dock.update(cx, |dock, cx| {
 1685            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1686        });
 1687    }
 1688
 1689    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1690        &self.status_bar
 1691    }
 1692
 1693    pub fn app_state(&self) -> &Arc<AppState> {
 1694        &self.app_state
 1695    }
 1696
 1697    pub fn user_store(&self) -> &Entity<UserStore> {
 1698        &self.app_state.user_store
 1699    }
 1700
 1701    pub fn project(&self) -> &Entity<Project> {
 1702        &self.project
 1703    }
 1704
 1705    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1706        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1707
 1708        for pane_handle in &self.panes {
 1709            let pane = pane_handle.read(cx);
 1710
 1711            for entry in pane.activation_history() {
 1712                history.insert(
 1713                    entry.entity_id,
 1714                    history
 1715                        .get(&entry.entity_id)
 1716                        .cloned()
 1717                        .unwrap_or(0)
 1718                        .max(entry.timestamp),
 1719                );
 1720            }
 1721        }
 1722
 1723        history
 1724    }
 1725
 1726    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1727        let mut recent_item: Option<Entity<T>> = None;
 1728        let mut recent_timestamp = 0;
 1729        for pane_handle in &self.panes {
 1730            let pane = pane_handle.read(cx);
 1731            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1732                pane.items().map(|item| (item.item_id(), item)).collect();
 1733            for entry in pane.activation_history() {
 1734                if entry.timestamp > recent_timestamp {
 1735                    if let Some(&item) = item_map.get(&entry.entity_id) {
 1736                        if let Some(typed_item) = item.act_as::<T>(cx) {
 1737                            recent_timestamp = entry.timestamp;
 1738                            recent_item = Some(typed_item);
 1739                        }
 1740                    }
 1741                }
 1742            }
 1743        }
 1744        recent_item
 1745    }
 1746
 1747    pub fn recent_navigation_history_iter(
 1748        &self,
 1749        cx: &App,
 1750    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> {
 1751        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1752        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1753
 1754        for pane in &self.panes {
 1755            let pane = pane.read(cx);
 1756
 1757            pane.nav_history()
 1758                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1759                    if let Some(fs_path) = &fs_path {
 1760                        abs_paths_opened
 1761                            .entry(fs_path.clone())
 1762                            .or_default()
 1763                            .insert(project_path.clone());
 1764                    }
 1765                    let timestamp = entry.timestamp;
 1766                    match history.entry(project_path) {
 1767                        hash_map::Entry::Occupied(mut entry) => {
 1768                            let (_, old_timestamp) = entry.get();
 1769                            if &timestamp > old_timestamp {
 1770                                entry.insert((fs_path, timestamp));
 1771                            }
 1772                        }
 1773                        hash_map::Entry::Vacant(entry) => {
 1774                            entry.insert((fs_path, timestamp));
 1775                        }
 1776                    }
 1777                });
 1778
 1779            if let Some(item) = pane.active_item() {
 1780                if let Some(project_path) = item.project_path(cx) {
 1781                    let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 1782
 1783                    if let Some(fs_path) = &fs_path {
 1784                        abs_paths_opened
 1785                            .entry(fs_path.clone())
 1786                            .or_default()
 1787                            .insert(project_path.clone());
 1788                    }
 1789
 1790                    history.insert(project_path, (fs_path, std::usize::MAX));
 1791                }
 1792            }
 1793        }
 1794
 1795        history
 1796            .into_iter()
 1797            .sorted_by_key(|(_, (_, order))| *order)
 1798            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 1799            .rev()
 1800            .filter(move |(history_path, abs_path)| {
 1801                let latest_project_path_opened = abs_path
 1802                    .as_ref()
 1803                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 1804                    .and_then(|project_paths| {
 1805                        project_paths
 1806                            .iter()
 1807                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 1808                    });
 1809
 1810                latest_project_path_opened.map_or(true, |path| path == history_path)
 1811            })
 1812    }
 1813
 1814    pub fn recent_navigation_history(
 1815        &self,
 1816        limit: Option<usize>,
 1817        cx: &App,
 1818    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 1819        self.recent_navigation_history_iter(cx)
 1820            .take(limit.unwrap_or(usize::MAX))
 1821            .collect()
 1822    }
 1823
 1824    fn navigate_history(
 1825        &mut self,
 1826        pane: WeakEntity<Pane>,
 1827        mode: NavigationMode,
 1828        window: &mut Window,
 1829        cx: &mut Context<Workspace>,
 1830    ) -> Task<Result<()>> {
 1831        let to_load = if let Some(pane) = pane.upgrade() {
 1832            pane.update(cx, |pane, cx| {
 1833                window.focus(&pane.focus_handle(cx));
 1834                loop {
 1835                    // Retrieve the weak item handle from the history.
 1836                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 1837
 1838                    // If the item is still present in this pane, then activate it.
 1839                    if let Some(index) = entry
 1840                        .item
 1841                        .upgrade()
 1842                        .and_then(|v| pane.index_for_item(v.as_ref()))
 1843                    {
 1844                        let prev_active_item_index = pane.active_item_index();
 1845                        pane.nav_history_mut().set_mode(mode);
 1846                        pane.activate_item(index, true, true, window, cx);
 1847                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1848
 1849                        let mut navigated = prev_active_item_index != pane.active_item_index();
 1850                        if let Some(data) = entry.data {
 1851                            navigated |= pane.active_item()?.navigate(data, window, cx);
 1852                        }
 1853
 1854                        if navigated {
 1855                            break None;
 1856                        }
 1857                    } else {
 1858                        // If the item is no longer present in this pane, then retrieve its
 1859                        // path info in order to reopen it.
 1860                        break pane
 1861                            .nav_history()
 1862                            .path_for_item(entry.item.id())
 1863                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 1864                    }
 1865                }
 1866            })
 1867        } else {
 1868            None
 1869        };
 1870
 1871        if let Some((project_path, abs_path, entry)) = to_load {
 1872            // If the item was no longer present, then load it again from its previous path, first try the local path
 1873            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 1874
 1875            cx.spawn_in(window, async move  |workspace, cx| {
 1876                let open_by_project_path = open_by_project_path.await;
 1877                let mut navigated = false;
 1878                match open_by_project_path
 1879                    .with_context(|| format!("Navigating to {project_path:?}"))
 1880                {
 1881                    Ok((project_entry_id, build_item)) => {
 1882                        let prev_active_item_id = pane.update(cx, |pane, _| {
 1883                            pane.nav_history_mut().set_mode(mode);
 1884                            pane.active_item().map(|p| p.item_id())
 1885                        })?;
 1886
 1887                        pane.update_in(cx, |pane, window, cx| {
 1888                            let item = pane.open_item(
 1889                                project_entry_id,
 1890                                project_path,
 1891                                true,
 1892                                entry.is_preview,
 1893                                true,
 1894                                None,
 1895                                window, cx,
 1896                                build_item,
 1897                            );
 1898                            navigated |= Some(item.item_id()) != prev_active_item_id;
 1899                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1900                            if let Some(data) = entry.data {
 1901                                navigated |= item.navigate(data, window, cx);
 1902                            }
 1903                        })?;
 1904                    }
 1905                    Err(open_by_project_path_e) => {
 1906                        // Fall back to opening by abs path, in case an external file was opened and closed,
 1907                        // and its worktree is now dropped
 1908                        if let Some(abs_path) = abs_path {
 1909                            let prev_active_item_id = pane.update(cx, |pane, _| {
 1910                                pane.nav_history_mut().set_mode(mode);
 1911                                pane.active_item().map(|p| p.item_id())
 1912                            })?;
 1913                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 1914                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 1915                            })?;
 1916                            match open_by_abs_path
 1917                                .await
 1918                                .with_context(|| format!("Navigating to {abs_path:?}"))
 1919                            {
 1920                                Ok(item) => {
 1921                                    pane.update_in(cx, |pane, window, cx| {
 1922                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 1923                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1924                                        if let Some(data) = entry.data {
 1925                                            navigated |= item.navigate(data, window, cx);
 1926                                        }
 1927                                    })?;
 1928                                }
 1929                                Err(open_by_abs_path_e) => {
 1930                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 1931                                }
 1932                            }
 1933                        }
 1934                    }
 1935                }
 1936
 1937                if !navigated {
 1938                    workspace
 1939                        .update_in(cx, |workspace, window, cx| {
 1940                            Self::navigate_history(workspace, pane, mode, window, cx)
 1941                        })?
 1942                        .await?;
 1943                }
 1944
 1945                Ok(())
 1946            })
 1947        } else {
 1948            Task::ready(Ok(()))
 1949        }
 1950    }
 1951
 1952    pub fn go_back(
 1953        &mut self,
 1954        pane: WeakEntity<Pane>,
 1955        window: &mut Window,
 1956        cx: &mut Context<Workspace>,
 1957    ) -> Task<Result<()>> {
 1958        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 1959    }
 1960
 1961    pub fn go_forward(
 1962        &mut self,
 1963        pane: WeakEntity<Pane>,
 1964        window: &mut Window,
 1965        cx: &mut Context<Workspace>,
 1966    ) -> Task<Result<()>> {
 1967        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 1968    }
 1969
 1970    pub fn reopen_closed_item(
 1971        &mut self,
 1972        window: &mut Window,
 1973        cx: &mut Context<Workspace>,
 1974    ) -> Task<Result<()>> {
 1975        self.navigate_history(
 1976            self.active_pane().downgrade(),
 1977            NavigationMode::ReopeningClosedItem,
 1978            window,
 1979            cx,
 1980        )
 1981    }
 1982
 1983    pub fn client(&self) -> &Arc<Client> {
 1984        &self.app_state.client
 1985    }
 1986
 1987    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 1988        self.titlebar_item = Some(item);
 1989        cx.notify();
 1990    }
 1991
 1992    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 1993        self.on_prompt_for_new_path = Some(prompt)
 1994    }
 1995
 1996    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 1997        self.on_prompt_for_open_path = Some(prompt)
 1998    }
 1999
 2000    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2001        self.terminal_provider = Some(Box::new(provider));
 2002    }
 2003
 2004    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2005        self.debugger_provider = Some(Arc::new(provider));
 2006    }
 2007
 2008    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2009        self.debugger_provider.clone()
 2010    }
 2011
 2012    pub fn serialized_ssh_project(&self) -> Option<SerializedSshProject> {
 2013        self.serialized_ssh_project.clone()
 2014    }
 2015
 2016    pub fn set_serialized_ssh_project(&mut self, serialized_ssh_project: SerializedSshProject) {
 2017        self.serialized_ssh_project = Some(serialized_ssh_project);
 2018    }
 2019
 2020    pub fn prompt_for_open_path(
 2021        &mut self,
 2022        path_prompt_options: PathPromptOptions,
 2023        lister: DirectoryLister,
 2024        window: &mut Window,
 2025        cx: &mut Context<Self>,
 2026    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2027        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2028            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2029            let rx = prompt(self, lister, window, cx);
 2030            self.on_prompt_for_open_path = Some(prompt);
 2031            rx
 2032        } else {
 2033            let (tx, rx) = oneshot::channel();
 2034            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2035
 2036            cx.spawn_in(window, async move |workspace, cx| {
 2037                let Ok(result) = abs_path.await else {
 2038                    return Ok(());
 2039                };
 2040
 2041                match result {
 2042                    Ok(result) => {
 2043                        tx.send(result).ok();
 2044                    }
 2045                    Err(err) => {
 2046                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2047                            workspace.show_portal_error(err.to_string(), cx);
 2048                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2049                            let rx = prompt(workspace, lister, window, cx);
 2050                            workspace.on_prompt_for_open_path = Some(prompt);
 2051                            rx
 2052                        })?;
 2053                        if let Ok(path) = rx.await {
 2054                            tx.send(path).ok();
 2055                        }
 2056                    }
 2057                };
 2058                anyhow::Ok(())
 2059            })
 2060            .detach();
 2061
 2062            rx
 2063        }
 2064    }
 2065
 2066    pub fn prompt_for_new_path(
 2067        &mut self,
 2068        lister: DirectoryLister,
 2069        window: &mut Window,
 2070        cx: &mut Context<Self>,
 2071    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2072        if self.project.read(cx).is_via_collab()
 2073            || self.project.read(cx).is_via_ssh()
 2074            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2075        {
 2076            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2077            let rx = prompt(self, lister, window, cx);
 2078            self.on_prompt_for_new_path = Some(prompt);
 2079            return rx;
 2080        }
 2081
 2082        let (tx, rx) = oneshot::channel();
 2083        cx.spawn_in(window, async move |workspace, cx| {
 2084            let abs_path = workspace.update(cx, |workspace, cx| {
 2085                let relative_to = workspace
 2086                    .most_recent_active_path(cx)
 2087                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2088                    .or_else(|| {
 2089                        let project = workspace.project.read(cx);
 2090                        project.visible_worktrees(cx).find_map(|worktree| {
 2091                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2092                        })
 2093                    })
 2094                    .or_else(std::env::home_dir)
 2095                    .unwrap_or_else(|| PathBuf::from(""));
 2096                cx.prompt_for_new_path(&relative_to)
 2097            })?;
 2098            let abs_path = match abs_path.await? {
 2099                Ok(path) => path,
 2100                Err(err) => {
 2101                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2102                        workspace.show_portal_error(err.to_string(), cx);
 2103
 2104                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2105                        let rx = prompt(workspace, lister, window, cx);
 2106                        workspace.on_prompt_for_new_path = Some(prompt);
 2107                        rx
 2108                    })?;
 2109                    if let Ok(path) = rx.await {
 2110                        tx.send(path).ok();
 2111                    }
 2112                    return anyhow::Ok(());
 2113                }
 2114            };
 2115
 2116            tx.send(abs_path.map(|path| vec![path])).ok();
 2117            anyhow::Ok(())
 2118        })
 2119        .detach();
 2120
 2121        rx
 2122    }
 2123
 2124    pub fn titlebar_item(&self) -> Option<AnyView> {
 2125        self.titlebar_item.clone()
 2126    }
 2127
 2128    /// Call the given callback with a workspace whose project is local.
 2129    ///
 2130    /// If the given workspace has a local project, then it will be passed
 2131    /// to the callback. Otherwise, a new empty window will be created.
 2132    pub fn with_local_workspace<T, F>(
 2133        &mut self,
 2134        window: &mut Window,
 2135        cx: &mut Context<Self>,
 2136        callback: F,
 2137    ) -> Task<Result<T>>
 2138    where
 2139        T: 'static,
 2140        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2141    {
 2142        if self.project.read(cx).is_local() {
 2143            Task::ready(Ok(callback(self, window, cx)))
 2144        } else {
 2145            let env = self.project.read(cx).cli_environment(cx);
 2146            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, cx);
 2147            cx.spawn_in(window, async move |_vh, cx| {
 2148                let (workspace, _) = task.await?;
 2149                workspace.update(cx, callback)
 2150            })
 2151        }
 2152    }
 2153
 2154    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2155        self.project.read(cx).worktrees(cx)
 2156    }
 2157
 2158    pub fn visible_worktrees<'a>(
 2159        &self,
 2160        cx: &'a App,
 2161    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2162        self.project.read(cx).visible_worktrees(cx)
 2163    }
 2164
 2165    #[cfg(any(test, feature = "test-support"))]
 2166    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2167        let futures = self
 2168            .worktrees(cx)
 2169            .filter_map(|worktree| worktree.read(cx).as_local())
 2170            .map(|worktree| worktree.scan_complete())
 2171            .collect::<Vec<_>>();
 2172        async move {
 2173            for future in futures {
 2174                future.await;
 2175            }
 2176        }
 2177    }
 2178
 2179    pub fn close_global(cx: &mut App) {
 2180        cx.defer(|cx| {
 2181            cx.windows().iter().find(|window| {
 2182                window
 2183                    .update(cx, |_, window, _| {
 2184                        if window.is_window_active() {
 2185                            //This can only get called when the window's project connection has been lost
 2186                            //so we don't need to prompt the user for anything and instead just close the window
 2187                            window.remove_window();
 2188                            true
 2189                        } else {
 2190                            false
 2191                        }
 2192                    })
 2193                    .unwrap_or(false)
 2194            });
 2195        });
 2196    }
 2197
 2198    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2199        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2200        cx.spawn_in(window, async move |_, cx| {
 2201            if prepare.await? {
 2202                cx.update(|window, _cx| window.remove_window())?;
 2203            }
 2204            anyhow::Ok(())
 2205        })
 2206        .detach_and_log_err(cx)
 2207    }
 2208
 2209    pub fn move_focused_panel_to_next_position(
 2210        &mut self,
 2211        _: &MoveFocusedPanelToNextPosition,
 2212        window: &mut Window,
 2213        cx: &mut Context<Self>,
 2214    ) {
 2215        let docks = self.all_docks();
 2216        let active_dock = docks
 2217            .into_iter()
 2218            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2219
 2220        if let Some(dock) = active_dock {
 2221            dock.update(cx, |dock, cx| {
 2222                let active_panel = dock
 2223                    .active_panel()
 2224                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2225
 2226                if let Some(panel) = active_panel {
 2227                    panel.move_to_next_position(window, cx);
 2228                }
 2229            })
 2230        }
 2231    }
 2232
 2233    pub fn prepare_to_close(
 2234        &mut self,
 2235        close_intent: CloseIntent,
 2236        window: &mut Window,
 2237        cx: &mut Context<Self>,
 2238    ) -> Task<Result<bool>> {
 2239        let active_call = self.active_call().cloned();
 2240
 2241        // On Linux and Windows, closing the last window should restore the last workspace.
 2242        let save_last_workspace = cfg!(not(target_os = "macos"))
 2243            && close_intent != CloseIntent::ReplaceWindow
 2244            && cx.windows().len() == 1;
 2245
 2246        cx.spawn_in(window, async move |this, cx| {
 2247            let workspace_count = cx.update(|_window, cx| {
 2248                cx.windows()
 2249                    .iter()
 2250                    .filter(|window| window.downcast::<Workspace>().is_some())
 2251                    .count()
 2252            })?;
 2253
 2254            if let Some(active_call) = active_call {
 2255                if close_intent != CloseIntent::Quit
 2256                    && workspace_count == 1
 2257                    && active_call.read_with(cx, |call, _| call.room().is_some())?
 2258                {
 2259                    let answer = cx.update(|window, cx| {
 2260                        window.prompt(
 2261                            PromptLevel::Warning,
 2262                            "Do you want to leave the current call?",
 2263                            None,
 2264                            &["Close window and hang up", "Cancel"],
 2265                            cx,
 2266                        )
 2267                    })?;
 2268
 2269                    if answer.await.log_err() == Some(1) {
 2270                        return anyhow::Ok(false);
 2271                    } else {
 2272                        active_call
 2273                            .update(cx, |call, cx| call.hang_up(cx))?
 2274                            .await
 2275                            .log_err();
 2276                    }
 2277                }
 2278            }
 2279
 2280            let save_result = this
 2281                .update_in(cx, |this, window, cx| {
 2282                    this.save_all_internal(SaveIntent::Close, window, cx)
 2283                })?
 2284                .await;
 2285
 2286            // If we're not quitting, but closing, we remove the workspace from
 2287            // the current session.
 2288            if close_intent != CloseIntent::Quit
 2289                && !save_last_workspace
 2290                && save_result.as_ref().map_or(false, |&res| res)
 2291            {
 2292                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2293                    .await;
 2294            }
 2295
 2296            save_result
 2297        })
 2298    }
 2299
 2300    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2301        self.save_all_internal(
 2302            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2303            window,
 2304            cx,
 2305        )
 2306        .detach_and_log_err(cx);
 2307    }
 2308
 2309    fn send_keystrokes(
 2310        &mut self,
 2311        action: &SendKeystrokes,
 2312        window: &mut Window,
 2313        cx: &mut Context<Self>,
 2314    ) {
 2315        let keystrokes: Vec<Keystroke> = action
 2316            .0
 2317            .split(' ')
 2318            .flat_map(|k| Keystroke::parse(k).log_err())
 2319            .collect();
 2320        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2321    }
 2322
 2323    pub fn send_keystrokes_impl(
 2324        &mut self,
 2325        keystrokes: Vec<Keystroke>,
 2326        window: &mut Window,
 2327        cx: &mut Context<Self>,
 2328    ) -> Shared<Task<()>> {
 2329        let mut state = self.dispatching_keystrokes.borrow_mut();
 2330        if !state.dispatched.insert(keystrokes.clone()) {
 2331            cx.propagate();
 2332            return state.task.clone().unwrap();
 2333        }
 2334
 2335        state.queue.extend(keystrokes);
 2336
 2337        let keystrokes = self.dispatching_keystrokes.clone();
 2338        if state.task.is_none() {
 2339            state.task = Some(
 2340                window
 2341                    .spawn(cx, async move |cx| {
 2342                        // limit to 100 keystrokes to avoid infinite recursion.
 2343                        for _ in 0..100 {
 2344                            let mut state = keystrokes.borrow_mut();
 2345                            let Some(keystroke) = state.queue.pop_front() else {
 2346                                state.dispatched.clear();
 2347                                state.task.take();
 2348                                return;
 2349                            };
 2350                            drop(state);
 2351                            cx.update(|window, cx| {
 2352                                let focused = window.focused(cx);
 2353                                window.dispatch_keystroke(keystroke.clone(), cx);
 2354                                if window.focused(cx) != focused {
 2355                                    // dispatch_keystroke may cause the focus to change.
 2356                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2357                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2358                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2359                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2360                                    // )
 2361                                    window.draw(cx).clear();
 2362                                }
 2363                            })
 2364                            .ok();
 2365                        }
 2366
 2367                        *keystrokes.borrow_mut() = Default::default();
 2368                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2369                    })
 2370                    .shared(),
 2371            );
 2372        }
 2373        state.task.clone().unwrap()
 2374    }
 2375
 2376    fn save_all_internal(
 2377        &mut self,
 2378        mut save_intent: SaveIntent,
 2379        window: &mut Window,
 2380        cx: &mut Context<Self>,
 2381    ) -> Task<Result<bool>> {
 2382        if self.project.read(cx).is_disconnected(cx) {
 2383            return Task::ready(Ok(true));
 2384        }
 2385        let dirty_items = self
 2386            .panes
 2387            .iter()
 2388            .flat_map(|pane| {
 2389                pane.read(cx).items().filter_map(|item| {
 2390                    if item.is_dirty(cx) {
 2391                        item.tab_content_text(0, cx);
 2392                        Some((pane.downgrade(), item.boxed_clone()))
 2393                    } else {
 2394                        None
 2395                    }
 2396                })
 2397            })
 2398            .collect::<Vec<_>>();
 2399
 2400        let project = self.project.clone();
 2401        cx.spawn_in(window, async move |workspace, cx| {
 2402            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2403                let (serialize_tasks, remaining_dirty_items) =
 2404                    workspace.update_in(cx, |workspace, window, cx| {
 2405                        let mut remaining_dirty_items = Vec::new();
 2406                        let mut serialize_tasks = Vec::new();
 2407                        for (pane, item) in dirty_items {
 2408                            if let Some(task) = item
 2409                                .to_serializable_item_handle(cx)
 2410                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2411                            {
 2412                                serialize_tasks.push(task);
 2413                            } else {
 2414                                remaining_dirty_items.push((pane, item));
 2415                            }
 2416                        }
 2417                        (serialize_tasks, remaining_dirty_items)
 2418                    })?;
 2419
 2420                futures::future::try_join_all(serialize_tasks).await?;
 2421
 2422                if remaining_dirty_items.len() > 1 {
 2423                    let answer = workspace.update_in(cx, |_, window, cx| {
 2424                        let detail = Pane::file_names_for_prompt(
 2425                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2426                            cx,
 2427                        );
 2428                        window.prompt(
 2429                            PromptLevel::Warning,
 2430                            &"Do you want to save all changes in the following files?",
 2431                            Some(&detail),
 2432                            &["Save all", "Discard all", "Cancel"],
 2433                            cx,
 2434                        )
 2435                    })?;
 2436                    match answer.await.log_err() {
 2437                        Some(0) => save_intent = SaveIntent::SaveAll,
 2438                        Some(1) => save_intent = SaveIntent::Skip,
 2439                        Some(2) => return Ok(false),
 2440                        _ => {}
 2441                    }
 2442                }
 2443
 2444                remaining_dirty_items
 2445            } else {
 2446                dirty_items
 2447            };
 2448
 2449            for (pane, item) in dirty_items {
 2450                let (singleton, project_entry_ids) =
 2451                    cx.update(|_, cx| (item.is_singleton(cx), item.project_entry_ids(cx)))?;
 2452                if singleton || !project_entry_ids.is_empty() {
 2453                    if !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await? {
 2454                        return Ok(false);
 2455                    }
 2456                }
 2457            }
 2458            Ok(true)
 2459        })
 2460    }
 2461
 2462    pub fn open_workspace_for_paths(
 2463        &mut self,
 2464        replace_current_window: bool,
 2465        paths: Vec<PathBuf>,
 2466        window: &mut Window,
 2467        cx: &mut Context<Self>,
 2468    ) -> Task<Result<()>> {
 2469        let window_handle = window.window_handle().downcast::<Self>();
 2470        let is_remote = self.project.read(cx).is_via_collab();
 2471        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2472        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2473
 2474        let window_to_replace = if replace_current_window {
 2475            window_handle
 2476        } else if is_remote || has_worktree || has_dirty_items {
 2477            None
 2478        } else {
 2479            window_handle
 2480        };
 2481        let app_state = self.app_state.clone();
 2482
 2483        cx.spawn(async move |_, cx| {
 2484            cx.update(|cx| {
 2485                open_paths(
 2486                    &paths,
 2487                    app_state,
 2488                    OpenOptions {
 2489                        replace_window: window_to_replace,
 2490                        ..Default::default()
 2491                    },
 2492                    cx,
 2493                )
 2494            })?
 2495            .await?;
 2496            Ok(())
 2497        })
 2498    }
 2499
 2500    #[allow(clippy::type_complexity)]
 2501    pub fn open_paths(
 2502        &mut self,
 2503        mut abs_paths: Vec<PathBuf>,
 2504        options: OpenOptions,
 2505        pane: Option<WeakEntity<Pane>>,
 2506        window: &mut Window,
 2507        cx: &mut Context<Self>,
 2508    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2509        log::info!("open paths {abs_paths:?}");
 2510
 2511        let fs = self.app_state.fs.clone();
 2512
 2513        // Sort the paths to ensure we add worktrees for parents before their children.
 2514        abs_paths.sort_unstable();
 2515        cx.spawn_in(window, async move |this, cx| {
 2516            let mut tasks = Vec::with_capacity(abs_paths.len());
 2517
 2518            for abs_path in &abs_paths {
 2519                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2520                    OpenVisible::All => Some(true),
 2521                    OpenVisible::None => Some(false),
 2522                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2523                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2524                        Some(None) => Some(true),
 2525                        None => None,
 2526                    },
 2527                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2528                        Some(Some(metadata)) => Some(metadata.is_dir),
 2529                        Some(None) => Some(false),
 2530                        None => None,
 2531                    },
 2532                };
 2533                let project_path = match visible {
 2534                    Some(visible) => match this
 2535                        .update(cx, |this, cx| {
 2536                            Workspace::project_path_for_path(
 2537                                this.project.clone(),
 2538                                abs_path,
 2539                                visible,
 2540                                cx,
 2541                            )
 2542                        })
 2543                        .log_err()
 2544                    {
 2545                        Some(project_path) => project_path.await.log_err(),
 2546                        None => None,
 2547                    },
 2548                    None => None,
 2549                };
 2550
 2551                let this = this.clone();
 2552                let abs_path: Arc<Path> = SanitizedPath::from(abs_path.clone()).into();
 2553                let fs = fs.clone();
 2554                let pane = pane.clone();
 2555                let task = cx.spawn(async move |cx| {
 2556                    let (worktree, project_path) = project_path?;
 2557                    if fs.is_dir(&abs_path).await {
 2558                        this.update(cx, |workspace, cx| {
 2559                            let worktree = worktree.read(cx);
 2560                            let worktree_abs_path = worktree.abs_path();
 2561                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2562                                worktree.root_entry()
 2563                            } else {
 2564                                abs_path
 2565                                    .strip_prefix(worktree_abs_path.as_ref())
 2566                                    .ok()
 2567                                    .and_then(|relative_path| {
 2568                                        worktree.entry_for_path(relative_path)
 2569                                    })
 2570                            }
 2571                            .map(|entry| entry.id);
 2572                            if let Some(entry_id) = entry_id {
 2573                                workspace.project.update(cx, |_, cx| {
 2574                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2575                                })
 2576                            }
 2577                        })
 2578                        .ok()?;
 2579                        None
 2580                    } else {
 2581                        Some(
 2582                            this.update_in(cx, |this, window, cx| {
 2583                                this.open_path(
 2584                                    project_path,
 2585                                    pane,
 2586                                    options.focus.unwrap_or(true),
 2587                                    window,
 2588                                    cx,
 2589                                )
 2590                            })
 2591                            .ok()?
 2592                            .await,
 2593                        )
 2594                    }
 2595                });
 2596                tasks.push(task);
 2597            }
 2598
 2599            futures::future::join_all(tasks).await
 2600        })
 2601    }
 2602
 2603    pub fn open_resolved_path(
 2604        &mut self,
 2605        path: ResolvedPath,
 2606        window: &mut Window,
 2607        cx: &mut Context<Self>,
 2608    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2609        match path {
 2610            ResolvedPath::ProjectPath { project_path, .. } => {
 2611                self.open_path(project_path, None, true, window, cx)
 2612            }
 2613            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2614                path,
 2615                OpenOptions {
 2616                    visible: Some(OpenVisible::None),
 2617                    ..Default::default()
 2618                },
 2619                window,
 2620                cx,
 2621            ),
 2622        }
 2623    }
 2624
 2625    pub fn absolute_path_of_worktree(
 2626        &self,
 2627        worktree_id: WorktreeId,
 2628        cx: &mut Context<Self>,
 2629    ) -> Option<PathBuf> {
 2630        self.project
 2631            .read(cx)
 2632            .worktree_for_id(worktree_id, cx)
 2633            // TODO: use `abs_path` or `root_dir`
 2634            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2635    }
 2636
 2637    fn add_folder_to_project(
 2638        &mut self,
 2639        _: &AddFolderToProject,
 2640        window: &mut Window,
 2641        cx: &mut Context<Self>,
 2642    ) {
 2643        let project = self.project.read(cx);
 2644        if project.is_via_collab() {
 2645            self.show_error(
 2646                &anyhow!("You cannot add folders to someone else's project"),
 2647                cx,
 2648            );
 2649            return;
 2650        }
 2651        let paths = self.prompt_for_open_path(
 2652            PathPromptOptions {
 2653                files: false,
 2654                directories: true,
 2655                multiple: true,
 2656            },
 2657            DirectoryLister::Project(self.project.clone()),
 2658            window,
 2659            cx,
 2660        );
 2661        cx.spawn_in(window, async move |this, cx| {
 2662            if let Some(paths) = paths.await.log_err().flatten() {
 2663                let results = this
 2664                    .update_in(cx, |this, window, cx| {
 2665                        this.open_paths(
 2666                            paths,
 2667                            OpenOptions {
 2668                                visible: Some(OpenVisible::All),
 2669                                ..Default::default()
 2670                            },
 2671                            None,
 2672                            window,
 2673                            cx,
 2674                        )
 2675                    })?
 2676                    .await;
 2677                for result in results.into_iter().flatten() {
 2678                    result.log_err();
 2679                }
 2680            }
 2681            anyhow::Ok(())
 2682        })
 2683        .detach_and_log_err(cx);
 2684    }
 2685
 2686    pub fn project_path_for_path(
 2687        project: Entity<Project>,
 2688        abs_path: &Path,
 2689        visible: bool,
 2690        cx: &mut App,
 2691    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2692        let entry = project.update(cx, |project, cx| {
 2693            project.find_or_create_worktree(abs_path, visible, cx)
 2694        });
 2695        cx.spawn(async move |cx| {
 2696            let (worktree, path) = entry.await?;
 2697            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2698            Ok((
 2699                worktree,
 2700                ProjectPath {
 2701                    worktree_id,
 2702                    path: path.into(),
 2703                },
 2704            ))
 2705        })
 2706    }
 2707
 2708    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2709        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2710    }
 2711
 2712    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2713        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2714    }
 2715
 2716    pub fn items_of_type<'a, T: Item>(
 2717        &'a self,
 2718        cx: &'a App,
 2719    ) -> impl 'a + Iterator<Item = Entity<T>> {
 2720        self.panes
 2721            .iter()
 2722            .flat_map(|pane| pane.read(cx).items_of_type())
 2723    }
 2724
 2725    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 2726        self.active_pane().read(cx).active_item()
 2727    }
 2728
 2729    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 2730        let item = self.active_item(cx)?;
 2731        item.to_any().downcast::<I>().ok()
 2732    }
 2733
 2734    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 2735        self.active_item(cx).and_then(|item| item.project_path(cx))
 2736    }
 2737
 2738    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 2739        self.recent_navigation_history_iter(cx)
 2740            .filter_map(|(path, abs_path)| {
 2741                let worktree = self
 2742                    .project
 2743                    .read(cx)
 2744                    .worktree_for_id(path.worktree_id, cx)?;
 2745                if worktree.read(cx).is_visible() {
 2746                    abs_path
 2747                } else {
 2748                    None
 2749                }
 2750            })
 2751            .next()
 2752    }
 2753
 2754    pub fn save_active_item(
 2755        &mut self,
 2756        save_intent: SaveIntent,
 2757        window: &mut Window,
 2758        cx: &mut App,
 2759    ) -> Task<Result<()>> {
 2760        let project = self.project.clone();
 2761        let pane = self.active_pane();
 2762        let item = pane.read(cx).active_item();
 2763        let pane = pane.downgrade();
 2764
 2765        window.spawn(cx, async move |mut cx| {
 2766            if let Some(item) = item {
 2767                Pane::save_item(project, &pane, item.as_ref(), save_intent, &mut cx)
 2768                    .await
 2769                    .map(|_| ())
 2770            } else {
 2771                Ok(())
 2772            }
 2773        })
 2774    }
 2775
 2776    pub fn close_inactive_items_and_panes(
 2777        &mut self,
 2778        action: &CloseInactiveTabsAndPanes,
 2779        window: &mut Window,
 2780        cx: &mut Context<Self>,
 2781    ) {
 2782        if let Some(task) = self.close_all_internal(
 2783            true,
 2784            action.save_intent.unwrap_or(SaveIntent::Close),
 2785            window,
 2786            cx,
 2787        ) {
 2788            task.detach_and_log_err(cx)
 2789        }
 2790    }
 2791
 2792    pub fn close_all_items_and_panes(
 2793        &mut self,
 2794        action: &CloseAllItemsAndPanes,
 2795        window: &mut Window,
 2796        cx: &mut Context<Self>,
 2797    ) {
 2798        if let Some(task) = self.close_all_internal(
 2799            false,
 2800            action.save_intent.unwrap_or(SaveIntent::Close),
 2801            window,
 2802            cx,
 2803        ) {
 2804            task.detach_and_log_err(cx)
 2805        }
 2806    }
 2807
 2808    fn close_all_internal(
 2809        &mut self,
 2810        retain_active_pane: bool,
 2811        save_intent: SaveIntent,
 2812        window: &mut Window,
 2813        cx: &mut Context<Self>,
 2814    ) -> Option<Task<Result<()>>> {
 2815        let current_pane = self.active_pane();
 2816
 2817        let mut tasks = Vec::new();
 2818
 2819        if retain_active_pane {
 2820            let current_pane_close = current_pane.update(cx, |pane, cx| {
 2821                pane.close_other_items(
 2822                    &CloseOtherItems {
 2823                        save_intent: None,
 2824                        close_pinned: false,
 2825                    },
 2826                    None,
 2827                    window,
 2828                    cx,
 2829                )
 2830            });
 2831
 2832            tasks.push(current_pane_close);
 2833        }
 2834
 2835        for pane in self.panes() {
 2836            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 2837                continue;
 2838            }
 2839
 2840            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 2841                pane.close_all_items(
 2842                    &CloseAllItems {
 2843                        save_intent: Some(save_intent),
 2844                        close_pinned: false,
 2845                    },
 2846                    window,
 2847                    cx,
 2848                )
 2849            });
 2850
 2851            tasks.push(close_pane_items)
 2852        }
 2853
 2854        if tasks.is_empty() {
 2855            None
 2856        } else {
 2857            Some(cx.spawn_in(window, async move |_, _| {
 2858                for task in tasks {
 2859                    task.await?
 2860                }
 2861                Ok(())
 2862            }))
 2863        }
 2864    }
 2865
 2866    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 2867        self.dock_at_position(position).read(cx).is_open()
 2868    }
 2869
 2870    pub fn toggle_dock(
 2871        &mut self,
 2872        dock_side: DockPosition,
 2873        window: &mut Window,
 2874        cx: &mut Context<Self>,
 2875    ) {
 2876        let dock = self.dock_at_position(dock_side);
 2877        let mut focus_center = false;
 2878        let mut reveal_dock = false;
 2879        dock.update(cx, |dock, cx| {
 2880            let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 2881            let was_visible = dock.is_open() && !other_is_zoomed;
 2882            dock.set_open(!was_visible, window, cx);
 2883
 2884            if dock.active_panel().is_none() {
 2885                let Some(panel_ix) = dock
 2886                    .first_enabled_panel_idx(cx)
 2887                    .log_with_level(log::Level::Info)
 2888                else {
 2889                    return;
 2890                };
 2891                dock.activate_panel(panel_ix, window, cx);
 2892            }
 2893
 2894            if let Some(active_panel) = dock.active_panel() {
 2895                if was_visible {
 2896                    if active_panel
 2897                        .panel_focus_handle(cx)
 2898                        .contains_focused(window, cx)
 2899                    {
 2900                        focus_center = true;
 2901                    }
 2902                } else {
 2903                    let focus_handle = &active_panel.panel_focus_handle(cx);
 2904                    window.focus(focus_handle);
 2905                    reveal_dock = true;
 2906                }
 2907            }
 2908        });
 2909
 2910        if reveal_dock {
 2911            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 2912        }
 2913
 2914        if focus_center {
 2915            self.active_pane
 2916                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 2917        }
 2918
 2919        cx.notify();
 2920        self.serialize_workspace(window, cx);
 2921    }
 2922
 2923    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 2924        self.all_docks().into_iter().find(|&dock| {
 2925            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 2926        })
 2927    }
 2928
 2929    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 2930        if let Some(dock) = self.active_dock(window, cx) {
 2931            dock.update(cx, |dock, cx| {
 2932                dock.set_open(false, window, cx);
 2933            });
 2934            return true;
 2935        }
 2936        false
 2937    }
 2938
 2939    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 2940        for dock in self.all_docks() {
 2941            dock.update(cx, |dock, cx| {
 2942                dock.set_open(false, window, cx);
 2943            });
 2944        }
 2945
 2946        cx.focus_self(window);
 2947        cx.notify();
 2948        self.serialize_workspace(window, cx);
 2949    }
 2950
 2951    /// Transfer focus to the panel of the given type.
 2952    pub fn focus_panel<T: Panel>(
 2953        &mut self,
 2954        window: &mut Window,
 2955        cx: &mut Context<Self>,
 2956    ) -> Option<Entity<T>> {
 2957        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 2958        panel.to_any().downcast().ok()
 2959    }
 2960
 2961    /// Focus the panel of the given type if it isn't already focused. If it is
 2962    /// already focused, then transfer focus back to the workspace center.
 2963    pub fn toggle_panel_focus<T: Panel>(
 2964        &mut self,
 2965        window: &mut Window,
 2966        cx: &mut Context<Self>,
 2967    ) -> bool {
 2968        let mut did_focus_panel = false;
 2969        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 2970            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 2971            did_focus_panel
 2972        });
 2973        did_focus_panel
 2974    }
 2975
 2976    pub fn activate_panel_for_proto_id(
 2977        &mut self,
 2978        panel_id: PanelId,
 2979        window: &mut Window,
 2980        cx: &mut Context<Self>,
 2981    ) -> Option<Arc<dyn PanelHandle>> {
 2982        let mut panel = None;
 2983        for dock in self.all_docks() {
 2984            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 2985                panel = dock.update(cx, |dock, cx| {
 2986                    dock.activate_panel(panel_index, window, cx);
 2987                    dock.set_open(true, window, cx);
 2988                    dock.active_panel().cloned()
 2989                });
 2990                break;
 2991            }
 2992        }
 2993
 2994        if panel.is_some() {
 2995            cx.notify();
 2996            self.serialize_workspace(window, cx);
 2997        }
 2998
 2999        panel
 3000    }
 3001
 3002    /// Focus or unfocus the given panel type, depending on the given callback.
 3003    fn focus_or_unfocus_panel<T: Panel>(
 3004        &mut self,
 3005        window: &mut Window,
 3006        cx: &mut Context<Self>,
 3007        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3008    ) -> Option<Arc<dyn PanelHandle>> {
 3009        let mut result_panel = None;
 3010        let mut serialize = false;
 3011        for dock in self.all_docks() {
 3012            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3013                let mut focus_center = false;
 3014                let panel = dock.update(cx, |dock, cx| {
 3015                    dock.activate_panel(panel_index, window, cx);
 3016
 3017                    let panel = dock.active_panel().cloned();
 3018                    if let Some(panel) = panel.as_ref() {
 3019                        if should_focus(&**panel, window, cx) {
 3020                            dock.set_open(true, window, cx);
 3021                            panel.panel_focus_handle(cx).focus(window);
 3022                        } else {
 3023                            focus_center = true;
 3024                        }
 3025                    }
 3026                    panel
 3027                });
 3028
 3029                if focus_center {
 3030                    self.active_pane
 3031                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3032                }
 3033
 3034                result_panel = panel;
 3035                serialize = true;
 3036                break;
 3037            }
 3038        }
 3039
 3040        if serialize {
 3041            self.serialize_workspace(window, cx);
 3042        }
 3043
 3044        cx.notify();
 3045        result_panel
 3046    }
 3047
 3048    /// Open the panel of the given type
 3049    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3050        for dock in self.all_docks() {
 3051            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3052                dock.update(cx, |dock, cx| {
 3053                    dock.activate_panel(panel_index, window, cx);
 3054                    dock.set_open(true, window, cx);
 3055                });
 3056            }
 3057        }
 3058    }
 3059
 3060    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3061        self.all_docks()
 3062            .iter()
 3063            .find_map(|dock| dock.read(cx).panel::<T>())
 3064    }
 3065
 3066    fn dismiss_zoomed_items_to_reveal(
 3067        &mut self,
 3068        dock_to_reveal: Option<DockPosition>,
 3069        window: &mut Window,
 3070        cx: &mut Context<Self>,
 3071    ) {
 3072        // If a center pane is zoomed, unzoom it.
 3073        for pane in &self.panes {
 3074            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3075                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3076            }
 3077        }
 3078
 3079        // If another dock is zoomed, hide it.
 3080        let mut focus_center = false;
 3081        for dock in self.all_docks() {
 3082            dock.update(cx, |dock, cx| {
 3083                if Some(dock.position()) != dock_to_reveal {
 3084                    if let Some(panel) = dock.active_panel() {
 3085                        if panel.is_zoomed(window, cx) {
 3086                            focus_center |=
 3087                                panel.panel_focus_handle(cx).contains_focused(window, cx);
 3088                            dock.set_open(false, window, cx);
 3089                        }
 3090                    }
 3091                }
 3092            });
 3093        }
 3094
 3095        if focus_center {
 3096            self.active_pane
 3097                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3098        }
 3099
 3100        if self.zoomed_position != dock_to_reveal {
 3101            self.zoomed = None;
 3102            self.zoomed_position = None;
 3103            cx.emit(Event::ZoomChanged);
 3104        }
 3105
 3106        cx.notify();
 3107    }
 3108
 3109    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3110        let pane = cx.new(|cx| {
 3111            let mut pane = Pane::new(
 3112                self.weak_handle(),
 3113                self.project.clone(),
 3114                self.pane_history_timestamp.clone(),
 3115                None,
 3116                NewFile.boxed_clone(),
 3117                window,
 3118                cx,
 3119            );
 3120            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3121            pane
 3122        });
 3123        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3124            .detach();
 3125        self.panes.push(pane.clone());
 3126
 3127        window.focus(&pane.focus_handle(cx));
 3128
 3129        cx.emit(Event::PaneAdded(pane.clone()));
 3130        pane
 3131    }
 3132
 3133    pub fn add_item_to_center(
 3134        &mut self,
 3135        item: Box<dyn ItemHandle>,
 3136        window: &mut Window,
 3137        cx: &mut Context<Self>,
 3138    ) -> bool {
 3139        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3140            if let Some(center_pane) = center_pane.upgrade() {
 3141                center_pane.update(cx, |pane, cx| {
 3142                    pane.add_item(item, true, true, None, window, cx)
 3143                });
 3144                true
 3145            } else {
 3146                false
 3147            }
 3148        } else {
 3149            false
 3150        }
 3151    }
 3152
 3153    pub fn add_item_to_active_pane(
 3154        &mut self,
 3155        item: Box<dyn ItemHandle>,
 3156        destination_index: Option<usize>,
 3157        focus_item: bool,
 3158        window: &mut Window,
 3159        cx: &mut App,
 3160    ) {
 3161        self.add_item(
 3162            self.active_pane.clone(),
 3163            item,
 3164            destination_index,
 3165            false,
 3166            focus_item,
 3167            window,
 3168            cx,
 3169        )
 3170    }
 3171
 3172    pub fn add_item(
 3173        &mut self,
 3174        pane: Entity<Pane>,
 3175        item: Box<dyn ItemHandle>,
 3176        destination_index: Option<usize>,
 3177        activate_pane: bool,
 3178        focus_item: bool,
 3179        window: &mut Window,
 3180        cx: &mut App,
 3181    ) {
 3182        if let Some(text) = item.telemetry_event_text(cx) {
 3183            telemetry::event!(text);
 3184        }
 3185
 3186        pane.update(cx, |pane, cx| {
 3187            pane.add_item(
 3188                item,
 3189                activate_pane,
 3190                focus_item,
 3191                destination_index,
 3192                window,
 3193                cx,
 3194            )
 3195        });
 3196    }
 3197
 3198    pub fn split_item(
 3199        &mut self,
 3200        split_direction: SplitDirection,
 3201        item: Box<dyn ItemHandle>,
 3202        window: &mut Window,
 3203        cx: &mut Context<Self>,
 3204    ) {
 3205        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3206        self.add_item(new_pane, item, None, true, true, window, cx);
 3207    }
 3208
 3209    pub fn open_abs_path(
 3210        &mut self,
 3211        abs_path: PathBuf,
 3212        options: OpenOptions,
 3213        window: &mut Window,
 3214        cx: &mut Context<Self>,
 3215    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3216        cx.spawn_in(window, async move |workspace, cx| {
 3217            let open_paths_task_result = workspace
 3218                .update_in(cx, |workspace, window, cx| {
 3219                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3220                })
 3221                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3222                .await;
 3223            anyhow::ensure!(
 3224                open_paths_task_result.len() == 1,
 3225                "open abs path {abs_path:?} task returned incorrect number of results"
 3226            );
 3227            match open_paths_task_result
 3228                .into_iter()
 3229                .next()
 3230                .expect("ensured single task result")
 3231            {
 3232                Some(open_result) => {
 3233                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3234                }
 3235                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3236            }
 3237        })
 3238    }
 3239
 3240    pub fn split_abs_path(
 3241        &mut self,
 3242        abs_path: PathBuf,
 3243        visible: bool,
 3244        window: &mut Window,
 3245        cx: &mut Context<Self>,
 3246    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3247        let project_path_task =
 3248            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3249        cx.spawn_in(window, async move |this, cx| {
 3250            let (_, path) = project_path_task.await?;
 3251            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3252                .await
 3253        })
 3254    }
 3255
 3256    pub fn open_path(
 3257        &mut self,
 3258        path: impl Into<ProjectPath>,
 3259        pane: Option<WeakEntity<Pane>>,
 3260        focus_item: bool,
 3261        window: &mut Window,
 3262        cx: &mut App,
 3263    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3264        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3265    }
 3266
 3267    pub fn open_path_preview(
 3268        &mut self,
 3269        path: impl Into<ProjectPath>,
 3270        pane: Option<WeakEntity<Pane>>,
 3271        focus_item: bool,
 3272        allow_preview: bool,
 3273        activate: bool,
 3274        window: &mut Window,
 3275        cx: &mut App,
 3276    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3277        let pane = pane.unwrap_or_else(|| {
 3278            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3279                self.panes
 3280                    .first()
 3281                    .expect("There must be an active pane")
 3282                    .downgrade()
 3283            })
 3284        });
 3285
 3286        let project_path = path.into();
 3287        let task = self.load_path(project_path.clone(), window, cx);
 3288        window.spawn(cx, async move |cx| {
 3289            let (project_entry_id, build_item) = task.await?;
 3290            let result = pane.update_in(cx, |pane, window, cx| {
 3291                pane.open_item(
 3292                    project_entry_id,
 3293                    project_path,
 3294                    focus_item,
 3295                    allow_preview,
 3296                    activate,
 3297                    None,
 3298                    window,
 3299                    cx,
 3300                    build_item,
 3301                )
 3302            });
 3303            result
 3304        })
 3305    }
 3306
 3307    pub fn split_path(
 3308        &mut self,
 3309        path: impl Into<ProjectPath>,
 3310        window: &mut Window,
 3311        cx: &mut Context<Self>,
 3312    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3313        self.split_path_preview(path, false, None, window, cx)
 3314    }
 3315
 3316    pub fn split_path_preview(
 3317        &mut self,
 3318        path: impl Into<ProjectPath>,
 3319        allow_preview: bool,
 3320        split_direction: Option<SplitDirection>,
 3321        window: &mut Window,
 3322        cx: &mut Context<Self>,
 3323    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3324        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3325            self.panes
 3326                .first()
 3327                .expect("There must be an active pane")
 3328                .downgrade()
 3329        });
 3330
 3331        if let Member::Pane(center_pane) = &self.center.root {
 3332            if center_pane.read(cx).items_len() == 0 {
 3333                return self.open_path(path, Some(pane), true, window, cx);
 3334            }
 3335        }
 3336
 3337        let project_path = path.into();
 3338        let task = self.load_path(project_path.clone(), window, cx);
 3339        cx.spawn_in(window, async move |this, cx| {
 3340            let (project_entry_id, build_item) = task.await?;
 3341            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3342                let pane = pane.upgrade()?;
 3343                let new_pane = this.split_pane(
 3344                    pane,
 3345                    split_direction.unwrap_or(SplitDirection::Right),
 3346                    window,
 3347                    cx,
 3348                );
 3349                new_pane.update(cx, |new_pane, cx| {
 3350                    Some(new_pane.open_item(
 3351                        project_entry_id,
 3352                        project_path,
 3353                        true,
 3354                        allow_preview,
 3355                        true,
 3356                        None,
 3357                        window,
 3358                        cx,
 3359                        build_item,
 3360                    ))
 3361                })
 3362            })
 3363            .map(|option| option.context("pane was dropped"))?
 3364        })
 3365    }
 3366
 3367    fn load_path(
 3368        &mut self,
 3369        path: ProjectPath,
 3370        window: &mut Window,
 3371        cx: &mut App,
 3372    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3373        let project = self.project().clone();
 3374        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3375        registry.open_path(&project, &path, window, cx)
 3376    }
 3377
 3378    pub fn find_project_item<T>(
 3379        &self,
 3380        pane: &Entity<Pane>,
 3381        project_item: &Entity<T::Item>,
 3382        cx: &App,
 3383    ) -> Option<Entity<T>>
 3384    where
 3385        T: ProjectItem,
 3386    {
 3387        use project::ProjectItem as _;
 3388        let project_item = project_item.read(cx);
 3389        let entry_id = project_item.entry_id(cx);
 3390        let project_path = project_item.project_path(cx);
 3391
 3392        let mut item = None;
 3393        if let Some(entry_id) = entry_id {
 3394            item = pane.read(cx).item_for_entry(entry_id, cx);
 3395        }
 3396        if item.is_none() {
 3397            if let Some(project_path) = project_path {
 3398                item = pane.read(cx).item_for_path(project_path, cx);
 3399            }
 3400        }
 3401
 3402        item.and_then(|item| item.downcast::<T>())
 3403    }
 3404
 3405    pub fn is_project_item_open<T>(
 3406        &self,
 3407        pane: &Entity<Pane>,
 3408        project_item: &Entity<T::Item>,
 3409        cx: &App,
 3410    ) -> bool
 3411    where
 3412        T: ProjectItem,
 3413    {
 3414        self.find_project_item::<T>(pane, project_item, cx)
 3415            .is_some()
 3416    }
 3417
 3418    pub fn open_project_item<T>(
 3419        &mut self,
 3420        pane: Entity<Pane>,
 3421        project_item: Entity<T::Item>,
 3422        activate_pane: bool,
 3423        focus_item: bool,
 3424        window: &mut Window,
 3425        cx: &mut Context<Self>,
 3426    ) -> Entity<T>
 3427    where
 3428        T: ProjectItem,
 3429    {
 3430        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3431            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3432            return item;
 3433        }
 3434
 3435        let item = pane.update(cx, |pane, cx| {
 3436            cx.new(|cx| {
 3437                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3438            })
 3439        });
 3440        let item_id = item.item_id();
 3441        let mut destination_index = None;
 3442        pane.update(cx, |pane, cx| {
 3443            if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
 3444                if let Some(preview_item_id) = pane.preview_item_id() {
 3445                    if preview_item_id != item_id {
 3446                        destination_index = pane.close_current_preview_item(window, cx);
 3447                    }
 3448                }
 3449            }
 3450            pane.set_preview_item_id(Some(item.item_id()), cx)
 3451        });
 3452
 3453        self.add_item(
 3454            pane,
 3455            Box::new(item.clone()),
 3456            destination_index,
 3457            activate_pane,
 3458            focus_item,
 3459            window,
 3460            cx,
 3461        );
 3462        item
 3463    }
 3464
 3465    pub fn open_shared_screen(
 3466        &mut self,
 3467        peer_id: PeerId,
 3468        window: &mut Window,
 3469        cx: &mut Context<Self>,
 3470    ) {
 3471        if let Some(shared_screen) =
 3472            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3473        {
 3474            self.active_pane.update(cx, |pane, cx| {
 3475                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3476            });
 3477        }
 3478    }
 3479
 3480    pub fn activate_item(
 3481        &mut self,
 3482        item: &dyn ItemHandle,
 3483        activate_pane: bool,
 3484        focus_item: bool,
 3485        window: &mut Window,
 3486        cx: &mut App,
 3487    ) -> bool {
 3488        let result = self.panes.iter().find_map(|pane| {
 3489            pane.read(cx)
 3490                .index_for_item(item)
 3491                .map(|ix| (pane.clone(), ix))
 3492        });
 3493        if let Some((pane, ix)) = result {
 3494            pane.update(cx, |pane, cx| {
 3495                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3496            });
 3497            true
 3498        } else {
 3499            false
 3500        }
 3501    }
 3502
 3503    fn activate_pane_at_index(
 3504        &mut self,
 3505        action: &ActivatePane,
 3506        window: &mut Window,
 3507        cx: &mut Context<Self>,
 3508    ) {
 3509        let panes = self.center.panes();
 3510        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3511            window.focus(&pane.focus_handle(cx));
 3512        } else {
 3513            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx);
 3514        }
 3515    }
 3516
 3517    fn move_item_to_pane_at_index(
 3518        &mut self,
 3519        action: &MoveItemToPane,
 3520        window: &mut Window,
 3521        cx: &mut Context<Self>,
 3522    ) {
 3523        let panes = self.center.panes();
 3524        let destination = match panes.get(action.destination) {
 3525            Some(&destination) => destination.clone(),
 3526            None => {
 3527                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3528                    return;
 3529                }
 3530                let direction = SplitDirection::Right;
 3531                let split_off_pane = self
 3532                    .find_pane_in_direction(direction, cx)
 3533                    .unwrap_or_else(|| self.active_pane.clone());
 3534                let new_pane = self.add_pane(window, cx);
 3535                if self
 3536                    .center
 3537                    .split(&split_off_pane, &new_pane, direction)
 3538                    .log_err()
 3539                    .is_none()
 3540                {
 3541                    return;
 3542                };
 3543                new_pane
 3544            }
 3545        };
 3546
 3547        if action.clone {
 3548            clone_active_item(
 3549                self.database_id(),
 3550                &self.active_pane,
 3551                &destination,
 3552                action.focus,
 3553                window,
 3554                cx,
 3555            )
 3556        } else {
 3557            move_active_item(
 3558                &self.active_pane,
 3559                &destination,
 3560                action.focus,
 3561                true,
 3562                window,
 3563                cx,
 3564            )
 3565        }
 3566    }
 3567
 3568    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3569        let panes = self.center.panes();
 3570        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3571            let next_ix = (ix + 1) % panes.len();
 3572            let next_pane = panes[next_ix].clone();
 3573            window.focus(&next_pane.focus_handle(cx));
 3574        }
 3575    }
 3576
 3577    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3578        let panes = self.center.panes();
 3579        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3580            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3581            let prev_pane = panes[prev_ix].clone();
 3582            window.focus(&prev_pane.focus_handle(cx));
 3583        }
 3584    }
 3585
 3586    pub fn activate_pane_in_direction(
 3587        &mut self,
 3588        direction: SplitDirection,
 3589        window: &mut Window,
 3590        cx: &mut App,
 3591    ) {
 3592        use ActivateInDirectionTarget as Target;
 3593        enum Origin {
 3594            LeftDock,
 3595            RightDock,
 3596            BottomDock,
 3597            Center,
 3598        }
 3599
 3600        let origin: Origin = [
 3601            (&self.left_dock, Origin::LeftDock),
 3602            (&self.right_dock, Origin::RightDock),
 3603            (&self.bottom_dock, Origin::BottomDock),
 3604        ]
 3605        .into_iter()
 3606        .find_map(|(dock, origin)| {
 3607            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3608                Some(origin)
 3609            } else {
 3610                None
 3611            }
 3612        })
 3613        .unwrap_or(Origin::Center);
 3614
 3615        let get_last_active_pane = || {
 3616            let pane = self
 3617                .last_active_center_pane
 3618                .clone()
 3619                .unwrap_or_else(|| {
 3620                    self.panes
 3621                        .first()
 3622                        .expect("There must be an active pane")
 3623                        .downgrade()
 3624                })
 3625                .upgrade()?;
 3626            (pane.read(cx).items_len() != 0).then_some(pane)
 3627        };
 3628
 3629        let try_dock =
 3630            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 3631
 3632        let target = match (origin, direction) {
 3633            // We're in the center, so we first try to go to a different pane,
 3634            // otherwise try to go to a dock.
 3635            (Origin::Center, direction) => {
 3636                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 3637                    Some(Target::Pane(pane))
 3638                } else {
 3639                    match direction {
 3640                        SplitDirection::Up => None,
 3641                        SplitDirection::Down => try_dock(&self.bottom_dock),
 3642                        SplitDirection::Left => try_dock(&self.left_dock),
 3643                        SplitDirection::Right => try_dock(&self.right_dock),
 3644                    }
 3645                }
 3646            }
 3647
 3648            (Origin::LeftDock, SplitDirection::Right) => {
 3649                if let Some(last_active_pane) = get_last_active_pane() {
 3650                    Some(Target::Pane(last_active_pane))
 3651                } else {
 3652                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 3653                }
 3654            }
 3655
 3656            (Origin::LeftDock, SplitDirection::Down)
 3657            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 3658
 3659            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 3660            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 3661            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 3662
 3663            (Origin::RightDock, SplitDirection::Left) => {
 3664                if let Some(last_active_pane) = get_last_active_pane() {
 3665                    Some(Target::Pane(last_active_pane))
 3666                } else {
 3667                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 3668                }
 3669            }
 3670
 3671            _ => None,
 3672        };
 3673
 3674        match target {
 3675            Some(ActivateInDirectionTarget::Pane(pane)) => {
 3676                let pane = pane.read(cx);
 3677                if let Some(item) = pane.active_item() {
 3678                    item.item_focus_handle(cx).focus(window);
 3679                } else {
 3680                    log::error!(
 3681                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 3682                    );
 3683                }
 3684            }
 3685            Some(ActivateInDirectionTarget::Dock(dock)) => {
 3686                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 3687                window.defer(cx, move |window, cx| {
 3688                    let dock = dock.read(cx);
 3689                    if let Some(panel) = dock.active_panel() {
 3690                        panel.panel_focus_handle(cx).focus(window);
 3691                    } else {
 3692                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 3693                    }
 3694                })
 3695            }
 3696            None => {}
 3697        }
 3698    }
 3699
 3700    pub fn move_item_to_pane_in_direction(
 3701        &mut self,
 3702        action: &MoveItemToPaneInDirection,
 3703        window: &mut Window,
 3704        cx: &mut Context<Self>,
 3705    ) {
 3706        let destination = match self.find_pane_in_direction(action.direction, cx) {
 3707            Some(destination) => destination,
 3708            None => {
 3709                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3710                    return;
 3711                }
 3712                let new_pane = self.add_pane(window, cx);
 3713                if self
 3714                    .center
 3715                    .split(&self.active_pane, &new_pane, action.direction)
 3716                    .log_err()
 3717                    .is_none()
 3718                {
 3719                    return;
 3720                };
 3721                new_pane
 3722            }
 3723        };
 3724
 3725        if action.clone {
 3726            clone_active_item(
 3727                self.database_id(),
 3728                &self.active_pane,
 3729                &destination,
 3730                action.focus,
 3731                window,
 3732                cx,
 3733            )
 3734        } else {
 3735            move_active_item(
 3736                &self.active_pane,
 3737                &destination,
 3738                action.focus,
 3739                true,
 3740                window,
 3741                cx,
 3742            );
 3743        }
 3744    }
 3745
 3746    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 3747        self.center.bounding_box_for_pane(pane)
 3748    }
 3749
 3750    pub fn find_pane_in_direction(
 3751        &mut self,
 3752        direction: SplitDirection,
 3753        cx: &App,
 3754    ) -> Option<Entity<Pane>> {
 3755        self.center
 3756            .find_pane_in_direction(&self.active_pane, direction, cx)
 3757            .cloned()
 3758    }
 3759
 3760    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 3761        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 3762            self.center.swap(&self.active_pane, &to);
 3763            cx.notify();
 3764        }
 3765    }
 3766
 3767    pub fn resize_pane(
 3768        &mut self,
 3769        axis: gpui::Axis,
 3770        amount: Pixels,
 3771        window: &mut Window,
 3772        cx: &mut Context<Self>,
 3773    ) {
 3774        let docks = self.all_docks();
 3775        let active_dock = docks
 3776            .into_iter()
 3777            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 3778
 3779        if let Some(dock) = active_dock {
 3780            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 3781                return;
 3782            };
 3783            match dock.read(cx).position() {
 3784                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 3785                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 3786                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 3787            }
 3788        } else {
 3789            self.center
 3790                .resize(&self.active_pane, axis, amount, &self.bounds);
 3791        }
 3792        cx.notify();
 3793    }
 3794
 3795    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 3796        self.center.reset_pane_sizes();
 3797        cx.notify();
 3798    }
 3799
 3800    fn handle_pane_focused(
 3801        &mut self,
 3802        pane: Entity<Pane>,
 3803        window: &mut Window,
 3804        cx: &mut Context<Self>,
 3805    ) {
 3806        // This is explicitly hoisted out of the following check for pane identity as
 3807        // terminal panel panes are not registered as a center panes.
 3808        self.status_bar.update(cx, |status_bar, cx| {
 3809            status_bar.set_active_pane(&pane, window, cx);
 3810        });
 3811        if self.active_pane != pane {
 3812            self.set_active_pane(&pane, window, cx);
 3813        }
 3814
 3815        if self.last_active_center_pane.is_none() {
 3816            self.last_active_center_pane = Some(pane.downgrade());
 3817        }
 3818
 3819        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 3820        if pane.read(cx).is_zoomed() {
 3821            self.zoomed = Some(pane.downgrade().into());
 3822        } else {
 3823            self.zoomed = None;
 3824        }
 3825        self.zoomed_position = None;
 3826        cx.emit(Event::ZoomChanged);
 3827        self.update_active_view_for_followers(window, cx);
 3828        pane.update(cx, |pane, _| {
 3829            pane.track_alternate_file_items();
 3830        });
 3831
 3832        cx.notify();
 3833    }
 3834
 3835    fn set_active_pane(
 3836        &mut self,
 3837        pane: &Entity<Pane>,
 3838        window: &mut Window,
 3839        cx: &mut Context<Self>,
 3840    ) {
 3841        self.active_pane = pane.clone();
 3842        self.active_item_path_changed(window, cx);
 3843        self.last_active_center_pane = Some(pane.downgrade());
 3844    }
 3845
 3846    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3847        self.update_active_view_for_followers(window, cx);
 3848    }
 3849
 3850    fn handle_pane_event(
 3851        &mut self,
 3852        pane: &Entity<Pane>,
 3853        event: &pane::Event,
 3854        window: &mut Window,
 3855        cx: &mut Context<Self>,
 3856    ) {
 3857        let mut serialize_workspace = true;
 3858        match event {
 3859            pane::Event::AddItem { item } => {
 3860                item.added_to_pane(self, pane.clone(), window, cx);
 3861                cx.emit(Event::ItemAdded {
 3862                    item: item.boxed_clone(),
 3863                });
 3864            }
 3865            pane::Event::Split(direction) => {
 3866                self.split_and_clone(pane.clone(), *direction, window, cx);
 3867            }
 3868            pane::Event::JoinIntoNext => {
 3869                self.join_pane_into_next(pane.clone(), window, cx);
 3870            }
 3871            pane::Event::JoinAll => {
 3872                self.join_all_panes(window, cx);
 3873            }
 3874            pane::Event::Remove { focus_on_pane } => {
 3875                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 3876            }
 3877            pane::Event::ActivateItem {
 3878                local,
 3879                focus_changed,
 3880            } => {
 3881                cx.on_next_frame(window, |_, window, _| {
 3882                    window.invalidate_character_coordinates();
 3883                });
 3884
 3885                pane.update(cx, |pane, _| {
 3886                    pane.track_alternate_file_items();
 3887                });
 3888                if *local {
 3889                    self.unfollow_in_pane(&pane, window, cx);
 3890                }
 3891                serialize_workspace = *focus_changed || pane != self.active_pane();
 3892                if pane == self.active_pane() {
 3893                    self.active_item_path_changed(window, cx);
 3894                    self.update_active_view_for_followers(window, cx);
 3895                } else if *local {
 3896                    self.set_active_pane(&pane, window, cx);
 3897                }
 3898            }
 3899            pane::Event::UserSavedItem { item, save_intent } => {
 3900                cx.emit(Event::UserSavedItem {
 3901                    pane: pane.downgrade(),
 3902                    item: item.boxed_clone(),
 3903                    save_intent: *save_intent,
 3904                });
 3905                serialize_workspace = false;
 3906            }
 3907            pane::Event::ChangeItemTitle => {
 3908                if *pane == self.active_pane {
 3909                    self.active_item_path_changed(window, cx);
 3910                }
 3911                serialize_workspace = false;
 3912            }
 3913            pane::Event::RemoveItem { .. } => {}
 3914            pane::Event::RemovedItem { item } => {
 3915                cx.emit(Event::ActiveItemChanged);
 3916                self.update_window_edited(window, cx);
 3917                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id()) {
 3918                    if entry.get().entity_id() == pane.entity_id() {
 3919                        entry.remove();
 3920                    }
 3921                }
 3922            }
 3923            pane::Event::Focus => {
 3924                cx.on_next_frame(window, |_, window, _| {
 3925                    window.invalidate_character_coordinates();
 3926                });
 3927                self.handle_pane_focused(pane.clone(), window, cx);
 3928            }
 3929            pane::Event::ZoomIn => {
 3930                if *pane == self.active_pane {
 3931                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 3932                    if pane.read(cx).has_focus(window, cx) {
 3933                        self.zoomed = Some(pane.downgrade().into());
 3934                        self.zoomed_position = None;
 3935                        cx.emit(Event::ZoomChanged);
 3936                    }
 3937                    cx.notify();
 3938                }
 3939            }
 3940            pane::Event::ZoomOut => {
 3941                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3942                if self.zoomed_position.is_none() {
 3943                    self.zoomed = None;
 3944                    cx.emit(Event::ZoomChanged);
 3945                }
 3946                cx.notify();
 3947            }
 3948            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 3949        }
 3950
 3951        if serialize_workspace {
 3952            self.serialize_workspace(window, cx);
 3953        }
 3954    }
 3955
 3956    pub fn unfollow_in_pane(
 3957        &mut self,
 3958        pane: &Entity<Pane>,
 3959        window: &mut Window,
 3960        cx: &mut Context<Workspace>,
 3961    ) -> Option<CollaboratorId> {
 3962        let leader_id = self.leader_for_pane(pane)?;
 3963        self.unfollow(leader_id, window, cx);
 3964        Some(leader_id)
 3965    }
 3966
 3967    pub fn split_pane(
 3968        &mut self,
 3969        pane_to_split: Entity<Pane>,
 3970        split_direction: SplitDirection,
 3971        window: &mut Window,
 3972        cx: &mut Context<Self>,
 3973    ) -> Entity<Pane> {
 3974        let new_pane = self.add_pane(window, cx);
 3975        self.center
 3976            .split(&pane_to_split, &new_pane, split_direction)
 3977            .unwrap();
 3978        cx.notify();
 3979        new_pane
 3980    }
 3981
 3982    pub fn split_and_clone(
 3983        &mut self,
 3984        pane: Entity<Pane>,
 3985        direction: SplitDirection,
 3986        window: &mut Window,
 3987        cx: &mut Context<Self>,
 3988    ) -> Option<Entity<Pane>> {
 3989        let item = pane.read(cx).active_item()?;
 3990        let maybe_pane_handle =
 3991            if let Some(clone) = item.clone_on_split(self.database_id(), window, cx) {
 3992                let new_pane = self.add_pane(window, cx);
 3993                new_pane.update(cx, |pane, cx| {
 3994                    pane.add_item(clone, true, true, None, window, cx)
 3995                });
 3996                self.center.split(&pane, &new_pane, direction).unwrap();
 3997                Some(new_pane)
 3998            } else {
 3999                None
 4000            };
 4001        cx.notify();
 4002        maybe_pane_handle
 4003    }
 4004
 4005    pub fn split_pane_with_item(
 4006        &mut self,
 4007        pane_to_split: WeakEntity<Pane>,
 4008        split_direction: SplitDirection,
 4009        from: WeakEntity<Pane>,
 4010        item_id_to_move: EntityId,
 4011        window: &mut Window,
 4012        cx: &mut Context<Self>,
 4013    ) {
 4014        let Some(pane_to_split) = pane_to_split.upgrade() else {
 4015            return;
 4016        };
 4017        let Some(from) = from.upgrade() else {
 4018            return;
 4019        };
 4020
 4021        let new_pane = self.add_pane(window, cx);
 4022        move_item(&from, &new_pane, item_id_to_move, 0, true, window, cx);
 4023        self.center
 4024            .split(&pane_to_split, &new_pane, split_direction)
 4025            .unwrap();
 4026        cx.notify();
 4027    }
 4028
 4029    pub fn split_pane_with_project_entry(
 4030        &mut self,
 4031        pane_to_split: WeakEntity<Pane>,
 4032        split_direction: SplitDirection,
 4033        project_entry: ProjectEntryId,
 4034        window: &mut Window,
 4035        cx: &mut Context<Self>,
 4036    ) -> Option<Task<Result<()>>> {
 4037        let pane_to_split = pane_to_split.upgrade()?;
 4038        let new_pane = self.add_pane(window, cx);
 4039        self.center
 4040            .split(&pane_to_split, &new_pane, split_direction)
 4041            .unwrap();
 4042
 4043        let path = self.project.read(cx).path_for_entry(project_entry, cx)?;
 4044        let task = self.open_path(path, Some(new_pane.downgrade()), true, window, cx);
 4045        Some(cx.foreground_executor().spawn(async move {
 4046            task.await?;
 4047            Ok(())
 4048        }))
 4049    }
 4050
 4051    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4052        let active_item = self.active_pane.read(cx).active_item();
 4053        for pane in &self.panes {
 4054            join_pane_into_active(&self.active_pane, pane, window, cx);
 4055        }
 4056        if let Some(active_item) = active_item {
 4057            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4058        }
 4059        cx.notify();
 4060    }
 4061
 4062    pub fn join_pane_into_next(
 4063        &mut self,
 4064        pane: Entity<Pane>,
 4065        window: &mut Window,
 4066        cx: &mut Context<Self>,
 4067    ) {
 4068        let next_pane = self
 4069            .find_pane_in_direction(SplitDirection::Right, cx)
 4070            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4071            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4072            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4073        let Some(next_pane) = next_pane else {
 4074            return;
 4075        };
 4076        move_all_items(&pane, &next_pane, window, cx);
 4077        cx.notify();
 4078    }
 4079
 4080    fn remove_pane(
 4081        &mut self,
 4082        pane: Entity<Pane>,
 4083        focus_on: Option<Entity<Pane>>,
 4084        window: &mut Window,
 4085        cx: &mut Context<Self>,
 4086    ) {
 4087        if self.center.remove(&pane).unwrap() {
 4088            self.force_remove_pane(&pane, &focus_on, window, cx);
 4089            self.unfollow_in_pane(&pane, window, cx);
 4090            self.last_leaders_by_pane.remove(&pane.downgrade());
 4091            for removed_item in pane.read(cx).items() {
 4092                self.panes_by_item.remove(&removed_item.item_id());
 4093            }
 4094
 4095            cx.notify();
 4096        } else {
 4097            self.active_item_path_changed(window, cx);
 4098        }
 4099        cx.emit(Event::PaneRemoved);
 4100    }
 4101
 4102    pub fn panes(&self) -> &[Entity<Pane>] {
 4103        &self.panes
 4104    }
 4105
 4106    pub fn active_pane(&self) -> &Entity<Pane> {
 4107        &self.active_pane
 4108    }
 4109
 4110    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4111        for dock in self.all_docks() {
 4112            if dock.focus_handle(cx).contains_focused(window, cx) {
 4113                if let Some(pane) = dock
 4114                    .read(cx)
 4115                    .active_panel()
 4116                    .and_then(|panel| panel.pane(cx))
 4117                {
 4118                    return pane;
 4119                }
 4120            }
 4121        }
 4122        self.active_pane().clone()
 4123    }
 4124
 4125    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4126        self.find_pane_in_direction(SplitDirection::Right, cx)
 4127            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4128            .unwrap_or_else(|| {
 4129                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4130            })
 4131            .clone()
 4132    }
 4133
 4134    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4135        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4136        weak_pane.upgrade()
 4137    }
 4138
 4139    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4140        self.follower_states.retain(|leader_id, state| {
 4141            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4142                for item in state.items_by_leader_view_id.values() {
 4143                    item.view.set_leader_id(None, window, cx);
 4144                }
 4145                false
 4146            } else {
 4147                true
 4148            }
 4149        });
 4150        cx.notify();
 4151    }
 4152
 4153    pub fn start_following(
 4154        &mut self,
 4155        leader_id: impl Into<CollaboratorId>,
 4156        window: &mut Window,
 4157        cx: &mut Context<Self>,
 4158    ) -> Option<Task<Result<()>>> {
 4159        let leader_id = leader_id.into();
 4160        let pane = self.active_pane().clone();
 4161
 4162        self.last_leaders_by_pane
 4163            .insert(pane.downgrade(), leader_id);
 4164        self.unfollow(leader_id, window, cx);
 4165        self.unfollow_in_pane(&pane, window, cx);
 4166        self.follower_states.insert(
 4167            leader_id,
 4168            FollowerState {
 4169                center_pane: pane.clone(),
 4170                dock_pane: None,
 4171                active_view_id: None,
 4172                items_by_leader_view_id: Default::default(),
 4173            },
 4174        );
 4175        cx.notify();
 4176
 4177        match leader_id {
 4178            CollaboratorId::PeerId(leader_peer_id) => {
 4179                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4180                let project_id = self.project.read(cx).remote_id();
 4181                let request = self.app_state.client.request(proto::Follow {
 4182                    room_id,
 4183                    project_id,
 4184                    leader_id: Some(leader_peer_id),
 4185                });
 4186
 4187                Some(cx.spawn_in(window, async move |this, cx| {
 4188                    let response = request.await?;
 4189                    this.update(cx, |this, _| {
 4190                        let state = this
 4191                            .follower_states
 4192                            .get_mut(&leader_id)
 4193                            .context("following interrupted")?;
 4194                        state.active_view_id = response
 4195                            .active_view
 4196                            .as_ref()
 4197                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4198                        anyhow::Ok(())
 4199                    })??;
 4200                    if let Some(view) = response.active_view {
 4201                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4202                    }
 4203                    this.update_in(cx, |this, window, cx| {
 4204                        this.leader_updated(leader_id, window, cx)
 4205                    })?;
 4206                    Ok(())
 4207                }))
 4208            }
 4209            CollaboratorId::Agent => {
 4210                self.leader_updated(leader_id, window, cx)?;
 4211                Some(Task::ready(Ok(())))
 4212            }
 4213        }
 4214    }
 4215
 4216    pub fn follow_next_collaborator(
 4217        &mut self,
 4218        _: &FollowNextCollaborator,
 4219        window: &mut Window,
 4220        cx: &mut Context<Self>,
 4221    ) {
 4222        let collaborators = self.project.read(cx).collaborators();
 4223        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4224            let mut collaborators = collaborators.keys().copied();
 4225            for peer_id in collaborators.by_ref() {
 4226                if CollaboratorId::PeerId(peer_id) == leader_id {
 4227                    break;
 4228                }
 4229            }
 4230            collaborators.next().map(CollaboratorId::PeerId)
 4231        } else if let Some(last_leader_id) =
 4232            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4233        {
 4234            match last_leader_id {
 4235                CollaboratorId::PeerId(peer_id) => {
 4236                    if collaborators.contains_key(peer_id) {
 4237                        Some(*last_leader_id)
 4238                    } else {
 4239                        None
 4240                    }
 4241                }
 4242                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4243            }
 4244        } else {
 4245            None
 4246        };
 4247
 4248        let pane = self.active_pane.clone();
 4249        let Some(leader_id) = next_leader_id.or_else(|| {
 4250            Some(CollaboratorId::PeerId(
 4251                collaborators.keys().copied().next()?,
 4252            ))
 4253        }) else {
 4254            return;
 4255        };
 4256        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4257            return;
 4258        }
 4259        if let Some(task) = self.start_following(leader_id, window, cx) {
 4260            task.detach_and_log_err(cx)
 4261        }
 4262    }
 4263
 4264    pub fn follow(
 4265        &mut self,
 4266        leader_id: impl Into<CollaboratorId>,
 4267        window: &mut Window,
 4268        cx: &mut Context<Self>,
 4269    ) {
 4270        let leader_id = leader_id.into();
 4271
 4272        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4273            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4274                return;
 4275            };
 4276            let room = room.read(cx);
 4277            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4278                return;
 4279            };
 4280
 4281            let project = self.project.read(cx);
 4282
 4283            let other_project_id = match remote_participant.location {
 4284                call::ParticipantLocation::External => None,
 4285                call::ParticipantLocation::UnsharedProject => None,
 4286                call::ParticipantLocation::SharedProject { project_id } => {
 4287                    if Some(project_id) == project.remote_id() {
 4288                        None
 4289                    } else {
 4290                        Some(project_id)
 4291                    }
 4292                }
 4293            };
 4294
 4295            // if they are active in another project, follow there.
 4296            if let Some(project_id) = other_project_id {
 4297                let app_state = self.app_state.clone();
 4298                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4299                    .detach_and_log_err(cx);
 4300            }
 4301        }
 4302
 4303        // if you're already following, find the right pane and focus it.
 4304        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4305            window.focus(&follower_state.pane().focus_handle(cx));
 4306
 4307            return;
 4308        }
 4309
 4310        // Otherwise, follow.
 4311        if let Some(task) = self.start_following(leader_id, window, cx) {
 4312            task.detach_and_log_err(cx)
 4313        }
 4314    }
 4315
 4316    pub fn unfollow(
 4317        &mut self,
 4318        leader_id: impl Into<CollaboratorId>,
 4319        window: &mut Window,
 4320        cx: &mut Context<Self>,
 4321    ) -> Option<()> {
 4322        cx.notify();
 4323
 4324        let leader_id = leader_id.into();
 4325        let state = self.follower_states.remove(&leader_id)?;
 4326        for (_, item) in state.items_by_leader_view_id {
 4327            item.view.set_leader_id(None, window, cx);
 4328        }
 4329
 4330        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4331            let project_id = self.project.read(cx).remote_id();
 4332            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4333            self.app_state
 4334                .client
 4335                .send(proto::Unfollow {
 4336                    room_id,
 4337                    project_id,
 4338                    leader_id: Some(leader_peer_id),
 4339                })
 4340                .log_err();
 4341        }
 4342
 4343        Some(())
 4344    }
 4345
 4346    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4347        self.follower_states.contains_key(&id.into())
 4348    }
 4349
 4350    fn active_item_path_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4351        cx.emit(Event::ActiveItemChanged);
 4352        let active_entry = self.active_project_path(cx);
 4353        self.project
 4354            .update(cx, |project, cx| project.set_active_path(active_entry, cx));
 4355
 4356        self.update_window_title(window, cx);
 4357    }
 4358
 4359    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4360        let project = self.project().read(cx);
 4361        let mut title = String::new();
 4362
 4363        for (i, name) in project.worktree_root_names(cx).enumerate() {
 4364            if i > 0 {
 4365                title.push_str(", ");
 4366            }
 4367            title.push_str(name);
 4368        }
 4369
 4370        if title.is_empty() {
 4371            title = "empty project".to_string();
 4372        }
 4373
 4374        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4375            let filename = path
 4376                .path
 4377                .file_name()
 4378                .map(|s| s.to_string_lossy())
 4379                .or_else(|| {
 4380                    Some(Cow::Borrowed(
 4381                        project
 4382                            .worktree_for_id(path.worktree_id, cx)?
 4383                            .read(cx)
 4384                            .root_name(),
 4385                    ))
 4386                });
 4387
 4388            if let Some(filename) = filename {
 4389                title.push_str("");
 4390                title.push_str(filename.as_ref());
 4391            }
 4392        }
 4393
 4394        if project.is_via_collab() {
 4395            title.push_str("");
 4396        } else if project.is_shared() {
 4397            title.push_str("");
 4398        }
 4399
 4400        if let Some(last_title) = self.last_window_title.as_ref() {
 4401            if &title == last_title {
 4402                return;
 4403            }
 4404        }
 4405        window.set_window_title(&title);
 4406        self.last_window_title = Some(title);
 4407    }
 4408
 4409    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4410        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4411        if is_edited != self.window_edited {
 4412            self.window_edited = is_edited;
 4413            window.set_window_edited(self.window_edited)
 4414        }
 4415    }
 4416
 4417    fn update_item_dirty_state(
 4418        &mut self,
 4419        item: &dyn ItemHandle,
 4420        window: &mut Window,
 4421        cx: &mut App,
 4422    ) {
 4423        let is_dirty = item.is_dirty(cx);
 4424        let item_id = item.item_id();
 4425        let was_dirty = self.dirty_items.contains_key(&item_id);
 4426        if is_dirty == was_dirty {
 4427            return;
 4428        }
 4429        if was_dirty {
 4430            self.dirty_items.remove(&item_id);
 4431            self.update_window_edited(window, cx);
 4432            return;
 4433        }
 4434        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4435            let s = item.on_release(
 4436                cx,
 4437                Box::new(move |cx| {
 4438                    window_handle
 4439                        .update(cx, |this, window, cx| {
 4440                            this.dirty_items.remove(&item_id);
 4441                            this.update_window_edited(window, cx)
 4442                        })
 4443                        .ok();
 4444                }),
 4445            );
 4446            self.dirty_items.insert(item_id, s);
 4447            self.update_window_edited(window, cx);
 4448        }
 4449    }
 4450
 4451    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4452        if self.notifications.is_empty() {
 4453            None
 4454        } else {
 4455            Some(
 4456                div()
 4457                    .absolute()
 4458                    .right_3()
 4459                    .bottom_3()
 4460                    .w_112()
 4461                    .h_full()
 4462                    .flex()
 4463                    .flex_col()
 4464                    .justify_end()
 4465                    .gap_2()
 4466                    .children(
 4467                        self.notifications
 4468                            .iter()
 4469                            .map(|(_, notification)| notification.clone().into_any()),
 4470                    ),
 4471            )
 4472        }
 4473    }
 4474
 4475    // RPC handlers
 4476
 4477    fn active_view_for_follower(
 4478        &self,
 4479        follower_project_id: Option<u64>,
 4480        window: &mut Window,
 4481        cx: &mut Context<Self>,
 4482    ) -> Option<proto::View> {
 4483        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4484        let item = item?;
 4485        let leader_id = self
 4486            .pane_for(&*item)
 4487            .and_then(|pane| self.leader_for_pane(&pane));
 4488        let leader_peer_id = match leader_id {
 4489            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4490            Some(CollaboratorId::Agent) | None => None,
 4491        };
 4492
 4493        let item_handle = item.to_followable_item_handle(cx)?;
 4494        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4495        let variant = item_handle.to_state_proto(window, cx)?;
 4496
 4497        if item_handle.is_project_item(window, cx)
 4498            && (follower_project_id.is_none()
 4499                || follower_project_id != self.project.read(cx).remote_id())
 4500        {
 4501            return None;
 4502        }
 4503
 4504        Some(proto::View {
 4505            id: id.to_proto(),
 4506            leader_id: leader_peer_id,
 4507            variant: Some(variant),
 4508            panel_id: panel_id.map(|id| id as i32),
 4509        })
 4510    }
 4511
 4512    fn handle_follow(
 4513        &mut self,
 4514        follower_project_id: Option<u64>,
 4515        window: &mut Window,
 4516        cx: &mut Context<Self>,
 4517    ) -> proto::FollowResponse {
 4518        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4519
 4520        cx.notify();
 4521        proto::FollowResponse {
 4522            // TODO: Remove after version 0.145.x stabilizes.
 4523            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4524            views: active_view.iter().cloned().collect(),
 4525            active_view,
 4526        }
 4527    }
 4528
 4529    fn handle_update_followers(
 4530        &mut self,
 4531        leader_id: PeerId,
 4532        message: proto::UpdateFollowers,
 4533        _window: &mut Window,
 4534        _cx: &mut Context<Self>,
 4535    ) {
 4536        self.leader_updates_tx
 4537            .unbounded_send((leader_id, message))
 4538            .ok();
 4539    }
 4540
 4541    async fn process_leader_update(
 4542        this: &WeakEntity<Self>,
 4543        leader_id: PeerId,
 4544        update: proto::UpdateFollowers,
 4545        cx: &mut AsyncWindowContext,
 4546    ) -> Result<()> {
 4547        match update.variant.context("invalid update")? {
 4548            proto::update_followers::Variant::CreateView(view) => {
 4549                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4550                let should_add_view = this.update(cx, |this, _| {
 4551                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4552                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4553                    } else {
 4554                        anyhow::Ok(false)
 4555                    }
 4556                })??;
 4557
 4558                if should_add_view {
 4559                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4560                }
 4561            }
 4562            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4563                let should_add_view = this.update(cx, |this, _| {
 4564                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4565                        state.active_view_id = update_active_view
 4566                            .view
 4567                            .as_ref()
 4568                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4569
 4570                        if state.active_view_id.is_some_and(|view_id| {
 4571                            !state.items_by_leader_view_id.contains_key(&view_id)
 4572                        }) {
 4573                            anyhow::Ok(true)
 4574                        } else {
 4575                            anyhow::Ok(false)
 4576                        }
 4577                    } else {
 4578                        anyhow::Ok(false)
 4579                    }
 4580                })??;
 4581
 4582                if should_add_view {
 4583                    if let Some(view) = update_active_view.view {
 4584                        Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4585                    }
 4586                }
 4587            }
 4588            proto::update_followers::Variant::UpdateView(update_view) => {
 4589                let variant = update_view.variant.context("missing update view variant")?;
 4590                let id = update_view.id.context("missing update view id")?;
 4591                let mut tasks = Vec::new();
 4592                this.update_in(cx, |this, window, cx| {
 4593                    let project = this.project.clone();
 4594                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4595                        let view_id = ViewId::from_proto(id.clone())?;
 4596                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4597                            tasks.push(item.view.apply_update_proto(
 4598                                &project,
 4599                                variant.clone(),
 4600                                window,
 4601                                cx,
 4602                            ));
 4603                        }
 4604                    }
 4605                    anyhow::Ok(())
 4606                })??;
 4607                try_join_all(tasks).await.log_err();
 4608            }
 4609        }
 4610        this.update_in(cx, |this, window, cx| {
 4611            this.leader_updated(leader_id, window, cx)
 4612        })?;
 4613        Ok(())
 4614    }
 4615
 4616    async fn add_view_from_leader(
 4617        this: WeakEntity<Self>,
 4618        leader_id: PeerId,
 4619        view: &proto::View,
 4620        cx: &mut AsyncWindowContext,
 4621    ) -> Result<()> {
 4622        let this = this.upgrade().context("workspace dropped")?;
 4623
 4624        let Some(id) = view.id.clone() else {
 4625            anyhow::bail!("no id for view");
 4626        };
 4627        let id = ViewId::from_proto(id)?;
 4628        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 4629
 4630        let pane = this.update(cx, |this, _cx| {
 4631            let state = this
 4632                .follower_states
 4633                .get(&leader_id.into())
 4634                .context("stopped following")?;
 4635            anyhow::Ok(state.pane().clone())
 4636        })??;
 4637        let existing_item = pane.update_in(cx, |pane, window, cx| {
 4638            let client = this.read(cx).client().clone();
 4639            pane.items().find_map(|item| {
 4640                let item = item.to_followable_item_handle(cx)?;
 4641                if item.remote_id(&client, window, cx) == Some(id) {
 4642                    Some(item)
 4643                } else {
 4644                    None
 4645                }
 4646            })
 4647        })?;
 4648        let item = if let Some(existing_item) = existing_item {
 4649            existing_item
 4650        } else {
 4651            let variant = view.variant.clone();
 4652            anyhow::ensure!(variant.is_some(), "missing view variant");
 4653
 4654            let task = cx.update(|window, cx| {
 4655                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 4656            })?;
 4657
 4658            let Some(task) = task else {
 4659                anyhow::bail!(
 4660                    "failed to construct view from leader (maybe from a different version of zed?)"
 4661                );
 4662            };
 4663
 4664            let mut new_item = task.await?;
 4665            pane.update_in(cx, |pane, window, cx| {
 4666                let mut item_to_remove = None;
 4667                for (ix, item) in pane.items().enumerate() {
 4668                    if let Some(item) = item.to_followable_item_handle(cx) {
 4669                        match new_item.dedup(item.as_ref(), window, cx) {
 4670                            Some(item::Dedup::KeepExisting) => {
 4671                                new_item =
 4672                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 4673                                break;
 4674                            }
 4675                            Some(item::Dedup::ReplaceExisting) => {
 4676                                item_to_remove = Some((ix, item.item_id()));
 4677                                break;
 4678                            }
 4679                            None => {}
 4680                        }
 4681                    }
 4682                }
 4683
 4684                if let Some((ix, id)) = item_to_remove {
 4685                    pane.remove_item(id, false, false, window, cx);
 4686                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 4687                }
 4688            })?;
 4689
 4690            new_item
 4691        };
 4692
 4693        this.update_in(cx, |this, window, cx| {
 4694            let state = this.follower_states.get_mut(&leader_id.into())?;
 4695            item.set_leader_id(Some(leader_id.into()), window, cx);
 4696            state.items_by_leader_view_id.insert(
 4697                id,
 4698                FollowerView {
 4699                    view: item,
 4700                    location: panel_id,
 4701                },
 4702            );
 4703
 4704            Some(())
 4705        })?;
 4706
 4707        Ok(())
 4708    }
 4709
 4710    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4711        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 4712            return;
 4713        };
 4714
 4715        if let Some(agent_location) = self.project.read(cx).agent_location() {
 4716            let buffer_entity_id = agent_location.buffer.entity_id();
 4717            let view_id = ViewId {
 4718                creator: CollaboratorId::Agent,
 4719                id: buffer_entity_id.as_u64(),
 4720            };
 4721            follower_state.active_view_id = Some(view_id);
 4722
 4723            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 4724                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 4725                hash_map::Entry::Vacant(entry) => {
 4726                    let existing_view =
 4727                        follower_state
 4728                            .center_pane
 4729                            .read(cx)
 4730                            .items()
 4731                            .find_map(|item| {
 4732                                let item = item.to_followable_item_handle(cx)?;
 4733                                if item.is_singleton(cx)
 4734                                    && item.project_item_model_ids(cx).as_slice()
 4735                                        == [buffer_entity_id]
 4736                                {
 4737                                    Some(item)
 4738                                } else {
 4739                                    None
 4740                                }
 4741                            });
 4742                    let view = existing_view.or_else(|| {
 4743                        agent_location.buffer.upgrade().and_then(|buffer| {
 4744                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 4745                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 4746                            })?
 4747                            .to_followable_item_handle(cx)
 4748                        })
 4749                    });
 4750
 4751                    if let Some(view) = view {
 4752                        Some(entry.insert(FollowerView {
 4753                            view,
 4754                            location: None,
 4755                        }))
 4756                    } else {
 4757                        None
 4758                    }
 4759                }
 4760            };
 4761
 4762            if let Some(item) = item {
 4763                item.view
 4764                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 4765                item.view
 4766                    .update_agent_location(agent_location.position, window, cx);
 4767            }
 4768        } else {
 4769            follower_state.active_view_id = None;
 4770        }
 4771
 4772        self.leader_updated(CollaboratorId::Agent, window, cx);
 4773    }
 4774
 4775    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 4776        let mut is_project_item = true;
 4777        let mut update = proto::UpdateActiveView::default();
 4778        if window.is_window_active() {
 4779            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 4780
 4781            if let Some(item) = active_item {
 4782                if item.item_focus_handle(cx).contains_focused(window, cx) {
 4783                    let leader_id = self
 4784                        .pane_for(&*item)
 4785                        .and_then(|pane| self.leader_for_pane(&pane));
 4786                    let leader_peer_id = match leader_id {
 4787                        Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4788                        Some(CollaboratorId::Agent) | None => None,
 4789                    };
 4790
 4791                    if let Some(item) = item.to_followable_item_handle(cx) {
 4792                        let id = item
 4793                            .remote_id(&self.app_state.client, window, cx)
 4794                            .map(|id| id.to_proto());
 4795
 4796                        if let Some(id) = id {
 4797                            if let Some(variant) = item.to_state_proto(window, cx) {
 4798                                let view = Some(proto::View {
 4799                                    id: id.clone(),
 4800                                    leader_id: leader_peer_id,
 4801                                    variant: Some(variant),
 4802                                    panel_id: panel_id.map(|id| id as i32),
 4803                                });
 4804
 4805                                is_project_item = item.is_project_item(window, cx);
 4806                                update = proto::UpdateActiveView {
 4807                                    view,
 4808                                    // TODO: Remove after version 0.145.x stabilizes.
 4809                                    id,
 4810                                    leader_id: leader_peer_id,
 4811                                };
 4812                            }
 4813                        };
 4814                    }
 4815                }
 4816            }
 4817        }
 4818
 4819        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 4820        if active_view_id != self.last_active_view_id.as_ref() {
 4821            self.last_active_view_id = active_view_id.cloned();
 4822            self.update_followers(
 4823                is_project_item,
 4824                proto::update_followers::Variant::UpdateActiveView(update),
 4825                window,
 4826                cx,
 4827            );
 4828        }
 4829    }
 4830
 4831    fn active_item_for_followers(
 4832        &self,
 4833        window: &mut Window,
 4834        cx: &mut App,
 4835    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 4836        let mut active_item = None;
 4837        let mut panel_id = None;
 4838        for dock in self.all_docks() {
 4839            if dock.focus_handle(cx).contains_focused(window, cx) {
 4840                if let Some(panel) = dock.read(cx).active_panel() {
 4841                    if let Some(pane) = panel.pane(cx) {
 4842                        if let Some(item) = pane.read(cx).active_item() {
 4843                            active_item = Some(item);
 4844                            panel_id = panel.remote_id();
 4845                            break;
 4846                        }
 4847                    }
 4848                }
 4849            }
 4850        }
 4851
 4852        if active_item.is_none() {
 4853            active_item = self.active_pane().read(cx).active_item();
 4854        }
 4855        (active_item, panel_id)
 4856    }
 4857
 4858    fn update_followers(
 4859        &self,
 4860        project_only: bool,
 4861        update: proto::update_followers::Variant,
 4862        _: &mut Window,
 4863        cx: &mut App,
 4864    ) -> Option<()> {
 4865        // If this update only applies to for followers in the current project,
 4866        // then skip it unless this project is shared. If it applies to all
 4867        // followers, regardless of project, then set `project_id` to none,
 4868        // indicating that it goes to all followers.
 4869        let project_id = if project_only {
 4870            Some(self.project.read(cx).remote_id()?)
 4871        } else {
 4872            None
 4873        };
 4874        self.app_state().workspace_store.update(cx, |store, cx| {
 4875            store.update_followers(project_id, update, cx)
 4876        })
 4877    }
 4878
 4879    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 4880        self.follower_states.iter().find_map(|(leader_id, state)| {
 4881            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 4882                Some(*leader_id)
 4883            } else {
 4884                None
 4885            }
 4886        })
 4887    }
 4888
 4889    fn leader_updated(
 4890        &mut self,
 4891        leader_id: impl Into<CollaboratorId>,
 4892        window: &mut Window,
 4893        cx: &mut Context<Self>,
 4894    ) -> Option<Box<dyn ItemHandle>> {
 4895        cx.notify();
 4896
 4897        let leader_id = leader_id.into();
 4898        let (panel_id, item) = match leader_id {
 4899            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 4900            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 4901        };
 4902
 4903        let state = self.follower_states.get(&leader_id)?;
 4904        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 4905        let pane;
 4906        if let Some(panel_id) = panel_id {
 4907            pane = self
 4908                .activate_panel_for_proto_id(panel_id, window, cx)?
 4909                .pane(cx)?;
 4910            let state = self.follower_states.get_mut(&leader_id)?;
 4911            state.dock_pane = Some(pane.clone());
 4912        } else {
 4913            pane = state.center_pane.clone();
 4914            let state = self.follower_states.get_mut(&leader_id)?;
 4915            if let Some(dock_pane) = state.dock_pane.take() {
 4916                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 4917            }
 4918        }
 4919
 4920        pane.update(cx, |pane, cx| {
 4921            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 4922            if let Some(index) = pane.index_for_item(item.as_ref()) {
 4923                pane.activate_item(index, false, false, window, cx);
 4924            } else {
 4925                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 4926            }
 4927
 4928            if focus_active_item {
 4929                pane.focus_active_item(window, cx)
 4930            }
 4931        });
 4932
 4933        Some(item)
 4934    }
 4935
 4936    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 4937        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 4938        let active_view_id = state.active_view_id?;
 4939        Some(
 4940            state
 4941                .items_by_leader_view_id
 4942                .get(&active_view_id)?
 4943                .view
 4944                .boxed_clone(),
 4945        )
 4946    }
 4947
 4948    fn active_item_for_peer(
 4949        &self,
 4950        peer_id: PeerId,
 4951        window: &mut Window,
 4952        cx: &mut Context<Self>,
 4953    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 4954        let call = self.active_call()?;
 4955        let room = call.read(cx).room()?.read(cx);
 4956        let participant = room.remote_participant_for_peer_id(peer_id)?;
 4957        let leader_in_this_app;
 4958        let leader_in_this_project;
 4959        match participant.location {
 4960            call::ParticipantLocation::SharedProject { project_id } => {
 4961                leader_in_this_app = true;
 4962                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 4963            }
 4964            call::ParticipantLocation::UnsharedProject => {
 4965                leader_in_this_app = true;
 4966                leader_in_this_project = false;
 4967            }
 4968            call::ParticipantLocation::External => {
 4969                leader_in_this_app = false;
 4970                leader_in_this_project = false;
 4971            }
 4972        };
 4973        let state = self.follower_states.get(&peer_id.into())?;
 4974        let mut item_to_activate = None;
 4975        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 4976            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id) {
 4977                if leader_in_this_project || !item.view.is_project_item(window, cx) {
 4978                    item_to_activate = Some((item.location, item.view.boxed_clone()));
 4979                }
 4980            }
 4981        } else if let Some(shared_screen) =
 4982            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 4983        {
 4984            item_to_activate = Some((None, Box::new(shared_screen)));
 4985        }
 4986        item_to_activate
 4987    }
 4988
 4989    fn shared_screen_for_peer(
 4990        &self,
 4991        peer_id: PeerId,
 4992        pane: &Entity<Pane>,
 4993        window: &mut Window,
 4994        cx: &mut App,
 4995    ) -> Option<Entity<SharedScreen>> {
 4996        let call = self.active_call()?;
 4997        let room = call.read(cx).room()?.clone();
 4998        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 4999        let track = participant.video_tracks.values().next()?.clone();
 5000        let user = participant.user.clone();
 5001
 5002        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5003            if item.read(cx).peer_id == peer_id {
 5004                return Some(item);
 5005            }
 5006        }
 5007
 5008        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5009    }
 5010
 5011    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5012        if window.is_window_active() {
 5013            self.update_active_view_for_followers(window, cx);
 5014
 5015            if let Some(database_id) = self.database_id {
 5016                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5017                    .detach();
 5018            }
 5019        } else {
 5020            for pane in &self.panes {
 5021                pane.update(cx, |pane, cx| {
 5022                    if let Some(item) = pane.active_item() {
 5023                        item.workspace_deactivated(window, cx);
 5024                    }
 5025                    for item in pane.items() {
 5026                        if matches!(
 5027                            item.workspace_settings(cx).autosave,
 5028                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5029                        ) {
 5030                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5031                                .detach_and_log_err(cx);
 5032                        }
 5033                    }
 5034                });
 5035            }
 5036        }
 5037    }
 5038
 5039    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5040        self.active_call.as_ref().map(|(call, _)| call)
 5041    }
 5042
 5043    fn on_active_call_event(
 5044        &mut self,
 5045        _: &Entity<ActiveCall>,
 5046        event: &call::room::Event,
 5047        window: &mut Window,
 5048        cx: &mut Context<Self>,
 5049    ) {
 5050        match event {
 5051            call::room::Event::ParticipantLocationChanged { participant_id }
 5052            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5053                self.leader_updated(participant_id, window, cx);
 5054            }
 5055            _ => {}
 5056        }
 5057    }
 5058
 5059    pub fn database_id(&self) -> Option<WorkspaceId> {
 5060        self.database_id
 5061    }
 5062
 5063    pub fn session_id(&self) -> Option<String> {
 5064        self.session_id.clone()
 5065    }
 5066
 5067    fn local_paths(&self, cx: &App) -> Option<Vec<Arc<Path>>> {
 5068        let project = self.project().read(cx);
 5069
 5070        if project.is_local() {
 5071            Some(
 5072                project
 5073                    .visible_worktrees(cx)
 5074                    .map(|worktree| worktree.read(cx).abs_path())
 5075                    .collect::<Vec<_>>(),
 5076            )
 5077        } else {
 5078            None
 5079        }
 5080    }
 5081
 5082    fn update_ssh_paths(&mut self, cx: &App) {
 5083        let project = self.project().read(cx);
 5084        if !project.is_local() {
 5085            let paths: Vec<String> = project
 5086                .visible_worktrees(cx)
 5087                .map(|worktree| worktree.read(cx).abs_path().to_string_lossy().to_string())
 5088                .collect();
 5089            if let Some(ssh_project) = &mut self.serialized_ssh_project {
 5090                ssh_project.paths = paths;
 5091            }
 5092        }
 5093    }
 5094
 5095    fn serialize_ssh_paths(&mut self, window: &mut Window, cx: &mut Context<Workspace>) {
 5096        if self._schedule_serialize_ssh_paths.is_none() {
 5097            self._schedule_serialize_ssh_paths =
 5098                Some(cx.spawn_in(window, async move |this, cx| {
 5099                    cx.background_executor()
 5100                        .timer(SERIALIZATION_THROTTLE_TIME)
 5101                        .await;
 5102                    this.update_in(cx, |this, window, cx| {
 5103                        let task = if let Some(ssh_project) = &this.serialized_ssh_project {
 5104                            let ssh_project_id = ssh_project.id;
 5105                            let ssh_project_paths = ssh_project.paths.clone();
 5106                            window.spawn(cx, async move |_| {
 5107                                persistence::DB
 5108                                    .update_ssh_project_paths(ssh_project_id, ssh_project_paths)
 5109                                    .await
 5110                            })
 5111                        } else {
 5112                            Task::ready(Err(anyhow::anyhow!("No SSH project to serialize")))
 5113                        };
 5114                        task.detach();
 5115                        this._schedule_serialize_ssh_paths.take();
 5116                    })
 5117                    .log_err();
 5118                }));
 5119        }
 5120    }
 5121
 5122    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5123        match member {
 5124            Member::Axis(PaneAxis { members, .. }) => {
 5125                for child in members.iter() {
 5126                    self.remove_panes(child.clone(), window, cx)
 5127                }
 5128            }
 5129            Member::Pane(pane) => {
 5130                self.force_remove_pane(&pane, &None, window, cx);
 5131            }
 5132        }
 5133    }
 5134
 5135    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5136        self.session_id.take();
 5137        self.serialize_workspace_internal(window, cx)
 5138    }
 5139
 5140    fn force_remove_pane(
 5141        &mut self,
 5142        pane: &Entity<Pane>,
 5143        focus_on: &Option<Entity<Pane>>,
 5144        window: &mut Window,
 5145        cx: &mut Context<Workspace>,
 5146    ) {
 5147        self.panes.retain(|p| p != pane);
 5148        if let Some(focus_on) = focus_on {
 5149            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5150        } else {
 5151            if self.active_pane() == pane {
 5152                self.panes
 5153                    .last()
 5154                    .unwrap()
 5155                    .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5156            }
 5157        }
 5158        if self.last_active_center_pane == Some(pane.downgrade()) {
 5159            self.last_active_center_pane = None;
 5160        }
 5161        cx.notify();
 5162    }
 5163
 5164    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5165        if self._schedule_serialize_workspace.is_none() {
 5166            self._schedule_serialize_workspace =
 5167                Some(cx.spawn_in(window, async move |this, cx| {
 5168                    cx.background_executor()
 5169                        .timer(SERIALIZATION_THROTTLE_TIME)
 5170                        .await;
 5171                    this.update_in(cx, |this, window, cx| {
 5172                        this.serialize_workspace_internal(window, cx).detach();
 5173                        this._schedule_serialize_workspace.take();
 5174                    })
 5175                    .log_err();
 5176                }));
 5177        }
 5178    }
 5179
 5180    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5181        let Some(database_id) = self.database_id() else {
 5182            return Task::ready(());
 5183        };
 5184
 5185        fn serialize_pane_handle(
 5186            pane_handle: &Entity<Pane>,
 5187            window: &mut Window,
 5188            cx: &mut App,
 5189        ) -> SerializedPane {
 5190            let (items, active, pinned_count) = {
 5191                let pane = pane_handle.read(cx);
 5192                let active_item_id = pane.active_item().map(|item| item.item_id());
 5193                (
 5194                    pane.items()
 5195                        .filter_map(|handle| {
 5196                            let handle = handle.to_serializable_item_handle(cx)?;
 5197
 5198                            Some(SerializedItem {
 5199                                kind: Arc::from(handle.serialized_item_kind()),
 5200                                item_id: handle.item_id().as_u64(),
 5201                                active: Some(handle.item_id()) == active_item_id,
 5202                                preview: pane.is_active_preview_item(handle.item_id()),
 5203                            })
 5204                        })
 5205                        .collect::<Vec<_>>(),
 5206                    pane.has_focus(window, cx),
 5207                    pane.pinned_count(),
 5208                )
 5209            };
 5210
 5211            SerializedPane::new(items, active, pinned_count)
 5212        }
 5213
 5214        fn build_serialized_pane_group(
 5215            pane_group: &Member,
 5216            window: &mut Window,
 5217            cx: &mut App,
 5218        ) -> SerializedPaneGroup {
 5219            match pane_group {
 5220                Member::Axis(PaneAxis {
 5221                    axis,
 5222                    members,
 5223                    flexes,
 5224                    bounding_boxes: _,
 5225                }) => SerializedPaneGroup::Group {
 5226                    axis: SerializedAxis(*axis),
 5227                    children: members
 5228                        .iter()
 5229                        .map(|member| build_serialized_pane_group(member, window, cx))
 5230                        .collect::<Vec<_>>(),
 5231                    flexes: Some(flexes.lock().clone()),
 5232                },
 5233                Member::Pane(pane_handle) => {
 5234                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5235                }
 5236            }
 5237        }
 5238
 5239        fn build_serialized_docks(
 5240            this: &Workspace,
 5241            window: &mut Window,
 5242            cx: &mut App,
 5243        ) -> DockStructure {
 5244            let left_dock = this.left_dock.read(cx);
 5245            let left_visible = left_dock.is_open();
 5246            let left_active_panel = left_dock
 5247                .active_panel()
 5248                .map(|panel| panel.persistent_name().to_string());
 5249            let left_dock_zoom = left_dock
 5250                .active_panel()
 5251                .map(|panel| panel.is_zoomed(window, cx))
 5252                .unwrap_or(false);
 5253
 5254            let right_dock = this.right_dock.read(cx);
 5255            let right_visible = right_dock.is_open();
 5256            let right_active_panel = right_dock
 5257                .active_panel()
 5258                .map(|panel| panel.persistent_name().to_string());
 5259            let right_dock_zoom = right_dock
 5260                .active_panel()
 5261                .map(|panel| panel.is_zoomed(window, cx))
 5262                .unwrap_or(false);
 5263
 5264            let bottom_dock = this.bottom_dock.read(cx);
 5265            let bottom_visible = bottom_dock.is_open();
 5266            let bottom_active_panel = bottom_dock
 5267                .active_panel()
 5268                .map(|panel| panel.persistent_name().to_string());
 5269            let bottom_dock_zoom = bottom_dock
 5270                .active_panel()
 5271                .map(|panel| panel.is_zoomed(window, cx))
 5272                .unwrap_or(false);
 5273
 5274            DockStructure {
 5275                left: DockData {
 5276                    visible: left_visible,
 5277                    active_panel: left_active_panel,
 5278                    zoom: left_dock_zoom,
 5279                },
 5280                right: DockData {
 5281                    visible: right_visible,
 5282                    active_panel: right_active_panel,
 5283                    zoom: right_dock_zoom,
 5284                },
 5285                bottom: DockData {
 5286                    visible: bottom_visible,
 5287                    active_panel: bottom_active_panel,
 5288                    zoom: bottom_dock_zoom,
 5289                },
 5290            }
 5291        }
 5292
 5293        match self.serialize_workspace_location(cx) {
 5294            WorkspaceLocation::Location(location) => {
 5295                let breakpoints = self.project.update(cx, |project, cx| {
 5296                    project
 5297                        .breakpoint_store()
 5298                        .read(cx)
 5299                        .all_source_breakpoints(cx)
 5300                });
 5301
 5302                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5303                let docks = build_serialized_docks(self, window, cx);
 5304                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5305                let serialized_workspace = SerializedWorkspace {
 5306                    id: database_id,
 5307                    location,
 5308                    center_group,
 5309                    window_bounds,
 5310                    display: Default::default(),
 5311                    docks,
 5312                    centered_layout: self.centered_layout,
 5313                    session_id: self.session_id.clone(),
 5314                    breakpoints,
 5315                    window_id: Some(window.window_handle().window_id().as_u64()),
 5316                };
 5317
 5318                window.spawn(cx, async move |_| {
 5319                    persistence::DB.save_workspace(serialized_workspace).await;
 5320                })
 5321            }
 5322            WorkspaceLocation::DetachFromSession => window.spawn(cx, async move |_| {
 5323                persistence::DB
 5324                    .set_session_id(database_id, None)
 5325                    .await
 5326                    .log_err();
 5327            }),
 5328            WorkspaceLocation::None => Task::ready(()),
 5329        }
 5330    }
 5331
 5332    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5333        if let Some(ssh_project) = &self.serialized_ssh_project {
 5334            WorkspaceLocation::Location(SerializedWorkspaceLocation::Ssh(ssh_project.clone()))
 5335        } else if let Some(local_paths) = self.local_paths(cx) {
 5336            if !local_paths.is_empty() {
 5337                WorkspaceLocation::Location(SerializedWorkspaceLocation::from_local_paths(
 5338                    local_paths,
 5339                ))
 5340            } else {
 5341                WorkspaceLocation::DetachFromSession
 5342            }
 5343        } else {
 5344            WorkspaceLocation::None
 5345        }
 5346    }
 5347
 5348    fn update_history(&self, cx: &mut App) {
 5349        let Some(id) = self.database_id() else {
 5350            return;
 5351        };
 5352        let location = match self.serialize_workspace_location(cx) {
 5353            WorkspaceLocation::Location(location) => location,
 5354            _ => return,
 5355        };
 5356        if let Some(manager) = HistoryManager::global(cx) {
 5357            manager.update(cx, |this, cx| {
 5358                this.update_history(id, HistoryManagerEntry::new(id, &location), cx);
 5359            });
 5360        }
 5361    }
 5362
 5363    async fn serialize_items(
 5364        this: &WeakEntity<Self>,
 5365        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5366        cx: &mut AsyncWindowContext,
 5367    ) -> Result<()> {
 5368        const CHUNK_SIZE: usize = 200;
 5369
 5370        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5371
 5372        while let Some(items_received) = serializable_items.next().await {
 5373            let unique_items =
 5374                items_received
 5375                    .into_iter()
 5376                    .fold(HashMap::default(), |mut acc, item| {
 5377                        acc.entry(item.item_id()).or_insert(item);
 5378                        acc
 5379                    });
 5380
 5381            // We use into_iter() here so that the references to the items are moved into
 5382            // the tasks and not kept alive while we're sleeping.
 5383            for (_, item) in unique_items.into_iter() {
 5384                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5385                    item.serialize(workspace, false, window, cx)
 5386                }) {
 5387                    cx.background_spawn(async move { task.await.log_err() })
 5388                        .detach();
 5389                }
 5390            }
 5391
 5392            cx.background_executor()
 5393                .timer(SERIALIZATION_THROTTLE_TIME)
 5394                .await;
 5395        }
 5396
 5397        Ok(())
 5398    }
 5399
 5400    pub(crate) fn enqueue_item_serialization(
 5401        &mut self,
 5402        item: Box<dyn SerializableItemHandle>,
 5403    ) -> Result<()> {
 5404        self.serializable_items_tx
 5405            .unbounded_send(item)
 5406            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5407    }
 5408
 5409    pub(crate) fn load_workspace(
 5410        serialized_workspace: SerializedWorkspace,
 5411        paths_to_open: Vec<Option<ProjectPath>>,
 5412        window: &mut Window,
 5413        cx: &mut Context<Workspace>,
 5414    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5415        cx.spawn_in(window, async move |workspace, cx| {
 5416            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5417
 5418            let mut center_group = None;
 5419            let mut center_items = None;
 5420
 5421            // Traverse the splits tree and add to things
 5422            if let Some((group, active_pane, items)) = serialized_workspace
 5423                .center_group
 5424                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5425                .await
 5426            {
 5427                center_items = Some(items);
 5428                center_group = Some((group, active_pane))
 5429            }
 5430
 5431            let mut items_by_project_path = HashMap::default();
 5432            let mut item_ids_by_kind = HashMap::default();
 5433            let mut all_deserialized_items = Vec::default();
 5434            cx.update(|_, cx| {
 5435                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5436                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5437                        item_ids_by_kind
 5438                            .entry(serializable_item_handle.serialized_item_kind())
 5439                            .or_insert(Vec::new())
 5440                            .push(item.item_id().as_u64() as ItemId);
 5441                    }
 5442
 5443                    if let Some(project_path) = item.project_path(cx) {
 5444                        items_by_project_path.insert(project_path, item.clone());
 5445                    }
 5446                    all_deserialized_items.push(item);
 5447                }
 5448            })?;
 5449
 5450            let opened_items = paths_to_open
 5451                .into_iter()
 5452                .map(|path_to_open| {
 5453                    path_to_open
 5454                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5455                })
 5456                .collect::<Vec<_>>();
 5457
 5458            // Remove old panes from workspace panes list
 5459            workspace.update_in(cx, |workspace, window, cx| {
 5460                if let Some((center_group, active_pane)) = center_group {
 5461                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5462
 5463                    // Swap workspace center group
 5464                    workspace.center = PaneGroup::with_root(center_group);
 5465                    if let Some(active_pane) = active_pane {
 5466                        workspace.set_active_pane(&active_pane, window, cx);
 5467                        cx.focus_self(window);
 5468                    } else {
 5469                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5470                    }
 5471                }
 5472
 5473                let docks = serialized_workspace.docks;
 5474
 5475                for (dock, serialized_dock) in [
 5476                    (&mut workspace.right_dock, docks.right),
 5477                    (&mut workspace.left_dock, docks.left),
 5478                    (&mut workspace.bottom_dock, docks.bottom),
 5479                ]
 5480                .iter_mut()
 5481                {
 5482                    dock.update(cx, |dock, cx| {
 5483                        dock.serialized_dock = Some(serialized_dock.clone());
 5484                        dock.restore_state(window, cx);
 5485                    });
 5486                }
 5487
 5488                cx.notify();
 5489            })?;
 5490
 5491            let _ = project
 5492                .update(cx, |project, cx| {
 5493                    project
 5494                        .breakpoint_store()
 5495                        .update(cx, |breakpoint_store, cx| {
 5496                            breakpoint_store
 5497                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5498                        })
 5499                })?
 5500                .await;
 5501
 5502            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5503            // after loading the items, we might have different items and in order to avoid
 5504            // the database filling up, we delete items that haven't been loaded now.
 5505            //
 5506            // The items that have been loaded, have been saved after they've been added to the workspace.
 5507            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5508                item_ids_by_kind
 5509                    .into_iter()
 5510                    .map(|(item_kind, loaded_items)| {
 5511                        SerializableItemRegistry::cleanup(
 5512                            item_kind,
 5513                            serialized_workspace.id,
 5514                            loaded_items,
 5515                            window,
 5516                            cx,
 5517                        )
 5518                        .log_err()
 5519                    })
 5520                    .collect::<Vec<_>>()
 5521            })?;
 5522
 5523            futures::future::join_all(clean_up_tasks).await;
 5524
 5525            workspace
 5526                .update_in(cx, |workspace, window, cx| {
 5527                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5528                    workspace.serialize_workspace_internal(window, cx).detach();
 5529
 5530                    // Ensure that we mark the window as edited if we did load dirty items
 5531                    workspace.update_window_edited(window, cx);
 5532                })
 5533                .ok();
 5534
 5535            Ok(opened_items)
 5536        })
 5537    }
 5538
 5539    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5540        self.add_workspace_actions_listeners(div, window, cx)
 5541            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5542            .on_action(cx.listener(Self::close_all_items_and_panes))
 5543            .on_action(cx.listener(Self::save_all))
 5544            .on_action(cx.listener(Self::send_keystrokes))
 5545            .on_action(cx.listener(Self::add_folder_to_project))
 5546            .on_action(cx.listener(Self::follow_next_collaborator))
 5547            .on_action(cx.listener(Self::close_window))
 5548            .on_action(cx.listener(Self::activate_pane_at_index))
 5549            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5550            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5551            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5552            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5553                let pane = workspace.active_pane().clone();
 5554                workspace.unfollow_in_pane(&pane, window, cx);
 5555            }))
 5556            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5557                workspace
 5558                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5559                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5560            }))
 5561            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5562                workspace
 5563                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5564                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5565            }))
 5566            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5567                workspace
 5568                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5569                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5570            }))
 5571            .on_action(
 5572                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5573                    workspace.activate_previous_pane(window, cx)
 5574                }),
 5575            )
 5576            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5577                workspace.activate_next_pane(window, cx)
 5578            }))
 5579            .on_action(
 5580                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5581                    workspace.activate_next_window(cx)
 5582                }),
 5583            )
 5584            .on_action(
 5585                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5586                    workspace.activate_previous_window(cx)
 5587                }),
 5588            )
 5589            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5590                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5591            }))
 5592            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5593                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5594            }))
 5595            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5596                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5597            }))
 5598            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5599                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5600            }))
 5601            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5602                workspace.activate_next_pane(window, cx)
 5603            }))
 5604            .on_action(cx.listener(
 5605                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5606                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5607                },
 5608            ))
 5609            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5610                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5611            }))
 5612            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5613                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5614            }))
 5615            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5616                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5617            }))
 5618            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5619                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5620            }))
 5621            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 5622                this.toggle_dock(DockPosition::Left, window, cx);
 5623            }))
 5624            .on_action(cx.listener(
 5625                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 5626                    workspace.toggle_dock(DockPosition::Right, window, cx);
 5627                },
 5628            ))
 5629            .on_action(cx.listener(
 5630                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 5631                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 5632                },
 5633            ))
 5634            .on_action(cx.listener(
 5635                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 5636                    if !workspace.close_active_dock(window, cx) {
 5637                        cx.propagate();
 5638                    }
 5639                },
 5640            ))
 5641            .on_action(
 5642                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 5643                    workspace.close_all_docks(window, cx);
 5644                }),
 5645            )
 5646            .on_action(cx.listener(
 5647                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 5648                    workspace.clear_all_notifications(cx);
 5649                },
 5650            ))
 5651            .on_action(cx.listener(
 5652                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 5653                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 5654                        workspace.suppress_notification(&notification_id, cx);
 5655                    }
 5656                },
 5657            ))
 5658            .on_action(cx.listener(
 5659                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 5660                    workspace.reopen_closed_item(window, cx).detach();
 5661                },
 5662            ))
 5663            .on_action(cx.listener(
 5664                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 5665                    for dock in workspace.all_docks() {
 5666                        if dock.focus_handle(cx).contains_focused(window, cx) {
 5667                            let Some(panel) = dock.read(cx).active_panel() else {
 5668                                return;
 5669                            };
 5670
 5671                            // Set to `None`, then the size will fall back to the default.
 5672                            panel.clone().set_size(None, window, cx);
 5673
 5674                            return;
 5675                        }
 5676                    }
 5677                },
 5678            ))
 5679            .on_action(cx.listener(
 5680                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 5681                    for dock in workspace.all_docks() {
 5682                        if let Some(panel) = dock.read(cx).visible_panel() {
 5683                            // Set to `None`, then the size will fall back to the default.
 5684                            panel.clone().set_size(None, window, cx);
 5685                        }
 5686                    }
 5687                },
 5688            ))
 5689            .on_action(cx.listener(
 5690                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 5691                    adjust_active_dock_size_by_px(
 5692                        px_with_ui_font_fallback(act.px, cx),
 5693                        workspace,
 5694                        window,
 5695                        cx,
 5696                    );
 5697                },
 5698            ))
 5699            .on_action(cx.listener(
 5700                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 5701                    adjust_active_dock_size_by_px(
 5702                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5703                        workspace,
 5704                        window,
 5705                        cx,
 5706                    );
 5707                },
 5708            ))
 5709            .on_action(cx.listener(
 5710                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 5711                    adjust_open_docks_size_by_px(
 5712                        px_with_ui_font_fallback(act.px, cx),
 5713                        workspace,
 5714                        window,
 5715                        cx,
 5716                    );
 5717                },
 5718            ))
 5719            .on_action(cx.listener(
 5720                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 5721                    adjust_open_docks_size_by_px(
 5722                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5723                        workspace,
 5724                        window,
 5725                        cx,
 5726                    );
 5727                },
 5728            ))
 5729            .on_action(cx.listener(Workspace::toggle_centered_layout))
 5730            .on_action(cx.listener(Workspace::cancel))
 5731    }
 5732
 5733    #[cfg(any(test, feature = "test-support"))]
 5734    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 5735        use node_runtime::NodeRuntime;
 5736        use session::Session;
 5737
 5738        let client = project.read(cx).client();
 5739        let user_store = project.read(cx).user_store();
 5740        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 5741        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 5742        window.activate_window();
 5743        let app_state = Arc::new(AppState {
 5744            languages: project.read(cx).languages().clone(),
 5745            workspace_store,
 5746            client,
 5747            user_store,
 5748            fs: project.read(cx).fs().clone(),
 5749            build_window_options: |_, _| Default::default(),
 5750            node_runtime: NodeRuntime::unavailable(),
 5751            session,
 5752        });
 5753        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 5754        workspace
 5755            .active_pane
 5756            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5757        workspace
 5758    }
 5759
 5760    pub fn register_action<A: Action>(
 5761        &mut self,
 5762        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 5763    ) -> &mut Self {
 5764        let callback = Arc::new(callback);
 5765
 5766        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 5767            let callback = callback.clone();
 5768            div.on_action(cx.listener(move |workspace, event, window, cx| {
 5769                (callback)(workspace, event, window, cx)
 5770            }))
 5771        }));
 5772        self
 5773    }
 5774    pub fn register_action_renderer(
 5775        &mut self,
 5776        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 5777    ) -> &mut Self {
 5778        self.workspace_actions.push(Box::new(callback));
 5779        self
 5780    }
 5781
 5782    fn add_workspace_actions_listeners(
 5783        &self,
 5784        mut div: Div,
 5785        window: &mut Window,
 5786        cx: &mut Context<Self>,
 5787    ) -> Div {
 5788        for action in self.workspace_actions.iter() {
 5789            div = (action)(div, self, window, cx)
 5790        }
 5791        div
 5792    }
 5793
 5794    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 5795        self.modal_layer.read(cx).has_active_modal()
 5796    }
 5797
 5798    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 5799        self.modal_layer.read(cx).active_modal()
 5800    }
 5801
 5802    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 5803    where
 5804        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 5805    {
 5806        self.modal_layer.update(cx, |modal_layer, cx| {
 5807            modal_layer.toggle_modal(window, cx, build)
 5808        })
 5809    }
 5810
 5811    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 5812        self.toast_layer
 5813            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 5814    }
 5815
 5816    pub fn toggle_centered_layout(
 5817        &mut self,
 5818        _: &ToggleCenteredLayout,
 5819        _: &mut Window,
 5820        cx: &mut Context<Self>,
 5821    ) {
 5822        self.centered_layout = !self.centered_layout;
 5823        if let Some(database_id) = self.database_id() {
 5824            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 5825                .detach_and_log_err(cx);
 5826        }
 5827        cx.notify();
 5828    }
 5829
 5830    fn adjust_padding(padding: Option<f32>) -> f32 {
 5831        padding
 5832            .unwrap_or(Self::DEFAULT_PADDING)
 5833            .clamp(0.0, Self::MAX_PADDING)
 5834    }
 5835
 5836    fn render_dock(
 5837        &self,
 5838        position: DockPosition,
 5839        dock: &Entity<Dock>,
 5840        window: &mut Window,
 5841        cx: &mut App,
 5842    ) -> Option<Div> {
 5843        if self.zoomed_position == Some(position) {
 5844            return None;
 5845        }
 5846
 5847        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 5848            let pane = panel.pane(cx)?;
 5849            let follower_states = &self.follower_states;
 5850            leader_border_for_pane(follower_states, &pane, window, cx)
 5851        });
 5852
 5853        Some(
 5854            div()
 5855                .flex()
 5856                .flex_none()
 5857                .overflow_hidden()
 5858                .child(dock.clone())
 5859                .children(leader_border),
 5860        )
 5861    }
 5862
 5863    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 5864        window.root().flatten()
 5865    }
 5866
 5867    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 5868        self.zoomed.as_ref()
 5869    }
 5870
 5871    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 5872        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 5873            return;
 5874        };
 5875        let windows = cx.windows();
 5876        let Some(next_window) = windows
 5877            .iter()
 5878            .cycle()
 5879            .skip_while(|window| window.window_id() != current_window_id)
 5880            .nth(1)
 5881        else {
 5882            return;
 5883        };
 5884        next_window
 5885            .update(cx, |_, window, _| window.activate_window())
 5886            .ok();
 5887    }
 5888
 5889    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 5890        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 5891            return;
 5892        };
 5893        let windows = cx.windows();
 5894        let Some(prev_window) = windows
 5895            .iter()
 5896            .rev()
 5897            .cycle()
 5898            .skip_while(|window| window.window_id() != current_window_id)
 5899            .nth(1)
 5900        else {
 5901            return;
 5902        };
 5903        prev_window
 5904            .update(cx, |_, window, _| window.activate_window())
 5905            .ok();
 5906    }
 5907
 5908    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 5909        if cx.stop_active_drag(window) {
 5910            return;
 5911        } else if let Some((notification_id, _)) = self.notifications.pop() {
 5912            dismiss_app_notification(&notification_id, cx);
 5913        } else {
 5914            cx.propagate();
 5915        }
 5916    }
 5917
 5918    fn adjust_dock_size_by_px(
 5919        &mut self,
 5920        panel_size: Pixels,
 5921        dock_pos: DockPosition,
 5922        px: Pixels,
 5923        window: &mut Window,
 5924        cx: &mut Context<Self>,
 5925    ) {
 5926        match dock_pos {
 5927            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 5928            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 5929            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 5930        }
 5931    }
 5932
 5933    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 5934        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 5935
 5936        self.left_dock.update(cx, |left_dock, cx| {
 5937            if WorkspaceSettings::get_global(cx)
 5938                .resize_all_panels_in_dock
 5939                .contains(&DockPosition::Left)
 5940            {
 5941                left_dock.resize_all_panels(Some(size), window, cx);
 5942            } else {
 5943                left_dock.resize_active_panel(Some(size), window, cx);
 5944            }
 5945        });
 5946    }
 5947
 5948    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 5949        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 5950        self.left_dock.read_with(cx, |left_dock, cx| {
 5951            let left_dock_size = left_dock
 5952                .active_panel_size(window, cx)
 5953                .unwrap_or(Pixels(0.0));
 5954            if left_dock_size + size > self.bounds.right() {
 5955                size = self.bounds.right() - left_dock_size
 5956            }
 5957        });
 5958        self.right_dock.update(cx, |right_dock, cx| {
 5959            if WorkspaceSettings::get_global(cx)
 5960                .resize_all_panels_in_dock
 5961                .contains(&DockPosition::Right)
 5962            {
 5963                right_dock.resize_all_panels(Some(size), window, cx);
 5964            } else {
 5965                right_dock.resize_active_panel(Some(size), window, cx);
 5966            }
 5967        });
 5968    }
 5969
 5970    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 5971        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 5972        self.bottom_dock.update(cx, |bottom_dock, cx| {
 5973            if WorkspaceSettings::get_global(cx)
 5974                .resize_all_panels_in_dock
 5975                .contains(&DockPosition::Bottom)
 5976            {
 5977                bottom_dock.resize_all_panels(Some(size), window, cx);
 5978            } else {
 5979                bottom_dock.resize_active_panel(Some(size), window, cx);
 5980            }
 5981        });
 5982    }
 5983
 5984    fn toggle_edit_predictions_all_files(
 5985        &mut self,
 5986        _: &ToggleEditPrediction,
 5987        _window: &mut Window,
 5988        cx: &mut Context<Self>,
 5989    ) {
 5990        let fs = self.project().read(cx).fs().clone();
 5991        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 5992        update_settings_file::<AllLanguageSettings>(fs, cx, move |file, _| {
 5993            file.defaults.show_edit_predictions = Some(!show_edit_predictions)
 5994        });
 5995    }
 5996}
 5997
 5998fn leader_border_for_pane(
 5999    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6000    pane: &Entity<Pane>,
 6001    _: &Window,
 6002    cx: &App,
 6003) -> Option<Div> {
 6004    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6005        if state.pane() == pane {
 6006            Some((*leader_id, state))
 6007        } else {
 6008            None
 6009        }
 6010    })?;
 6011
 6012    let mut leader_color = match leader_id {
 6013        CollaboratorId::PeerId(leader_peer_id) => {
 6014            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6015            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6016
 6017            cx.theme()
 6018                .players()
 6019                .color_for_participant(leader.participant_index.0)
 6020                .cursor
 6021        }
 6022        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6023    };
 6024    leader_color.fade_out(0.3);
 6025    Some(
 6026        div()
 6027            .absolute()
 6028            .size_full()
 6029            .left_0()
 6030            .top_0()
 6031            .border_2()
 6032            .border_color(leader_color),
 6033    )
 6034}
 6035
 6036fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6037    ZED_WINDOW_POSITION
 6038        .zip(*ZED_WINDOW_SIZE)
 6039        .map(|(position, size)| Bounds {
 6040            origin: position,
 6041            size,
 6042        })
 6043}
 6044
 6045fn open_items(
 6046    serialized_workspace: Option<SerializedWorkspace>,
 6047    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6048    window: &mut Window,
 6049    cx: &mut Context<Workspace>,
 6050) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6051    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6052        Workspace::load_workspace(
 6053            serialized_workspace,
 6054            project_paths_to_open
 6055                .iter()
 6056                .map(|(_, project_path)| project_path)
 6057                .cloned()
 6058                .collect(),
 6059            window,
 6060            cx,
 6061        )
 6062    });
 6063
 6064    cx.spawn_in(window, async move |workspace, cx| {
 6065        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6066
 6067        if let Some(restored_items) = restored_items {
 6068            let restored_items = restored_items.await?;
 6069
 6070            let restored_project_paths = restored_items
 6071                .iter()
 6072                .filter_map(|item| {
 6073                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6074                        .ok()
 6075                        .flatten()
 6076                })
 6077                .collect::<HashSet<_>>();
 6078
 6079            for restored_item in restored_items {
 6080                opened_items.push(restored_item.map(Ok));
 6081            }
 6082
 6083            project_paths_to_open
 6084                .iter_mut()
 6085                .for_each(|(_, project_path)| {
 6086                    if let Some(project_path_to_open) = project_path {
 6087                        if restored_project_paths.contains(project_path_to_open) {
 6088                            *project_path = None;
 6089                        }
 6090                    }
 6091                });
 6092        } else {
 6093            for _ in 0..project_paths_to_open.len() {
 6094                opened_items.push(None);
 6095            }
 6096        }
 6097        assert!(opened_items.len() == project_paths_to_open.len());
 6098
 6099        let tasks =
 6100            project_paths_to_open
 6101                .into_iter()
 6102                .enumerate()
 6103                .map(|(ix, (abs_path, project_path))| {
 6104                    let workspace = workspace.clone();
 6105                    cx.spawn(async move |cx| {
 6106                        let file_project_path = project_path?;
 6107                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6108                            workspace.project().update(cx, |project, cx| {
 6109                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6110                            })
 6111                        });
 6112
 6113                        // We only want to open file paths here. If one of the items
 6114                        // here is a directory, it was already opened further above
 6115                        // with a `find_or_create_worktree`.
 6116                        if let Ok(task) = abs_path_task {
 6117                            if task.await.map_or(true, |p| p.is_file()) {
 6118                                return Some((
 6119                                    ix,
 6120                                    workspace
 6121                                        .update_in(cx, |workspace, window, cx| {
 6122                                            workspace.open_path(
 6123                                                file_project_path,
 6124                                                None,
 6125                                                true,
 6126                                                window,
 6127                                                cx,
 6128                                            )
 6129                                        })
 6130                                        .log_err()?
 6131                                        .await,
 6132                                ));
 6133                            }
 6134                        }
 6135                        None
 6136                    })
 6137                });
 6138
 6139        let tasks = tasks.collect::<Vec<_>>();
 6140
 6141        let tasks = futures::future::join_all(tasks);
 6142        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6143            opened_items[ix] = Some(path_open_result);
 6144        }
 6145
 6146        Ok(opened_items)
 6147    })
 6148}
 6149
 6150enum ActivateInDirectionTarget {
 6151    Pane(Entity<Pane>),
 6152    Dock(Entity<Dock>),
 6153}
 6154
 6155fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6156    workspace
 6157        .update(cx, |workspace, _, cx| {
 6158            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6159                struct DatabaseFailedNotification;
 6160
 6161                workspace.show_notification(
 6162                    NotificationId::unique::<DatabaseFailedNotification>(),
 6163                    cx,
 6164                    |cx| {
 6165                        cx.new(|cx| {
 6166                            MessageNotification::new("Failed to load the database file.", cx)
 6167                                .primary_message("File an Issue")
 6168                                .primary_icon(IconName::Plus)
 6169                                .primary_on_click(|window, cx| {
 6170                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6171                                })
 6172                        })
 6173                    },
 6174                );
 6175            }
 6176        })
 6177        .log_err();
 6178}
 6179
 6180fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6181    if val == 0 {
 6182        ThemeSettings::get_global(cx).ui_font_size(cx)
 6183    } else {
 6184        px(val as f32)
 6185    }
 6186}
 6187
 6188fn adjust_active_dock_size_by_px(
 6189    px: Pixels,
 6190    workspace: &mut Workspace,
 6191    window: &mut Window,
 6192    cx: &mut Context<Workspace>,
 6193) {
 6194    let Some(active_dock) = workspace
 6195        .all_docks()
 6196        .into_iter()
 6197        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6198    else {
 6199        return;
 6200    };
 6201    let dock = active_dock.read(cx);
 6202    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6203        return;
 6204    };
 6205    let dock_pos = dock.position();
 6206    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6207}
 6208
 6209fn adjust_open_docks_size_by_px(
 6210    px: Pixels,
 6211    workspace: &mut Workspace,
 6212    window: &mut Window,
 6213    cx: &mut Context<Workspace>,
 6214) {
 6215    let docks = workspace
 6216        .all_docks()
 6217        .into_iter()
 6218        .filter_map(|dock| {
 6219            if dock.read(cx).is_open() {
 6220                let dock = dock.read(cx);
 6221                let panel_size = dock.active_panel_size(window, cx)?;
 6222                let dock_pos = dock.position();
 6223                Some((panel_size, dock_pos, px))
 6224            } else {
 6225                None
 6226            }
 6227        })
 6228        .collect::<Vec<_>>();
 6229
 6230    docks
 6231        .into_iter()
 6232        .for_each(|(panel_size, dock_pos, offset)| {
 6233            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6234        });
 6235}
 6236
 6237impl Focusable for Workspace {
 6238    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6239        self.active_pane.focus_handle(cx)
 6240    }
 6241}
 6242
 6243#[derive(Clone)]
 6244struct DraggedDock(DockPosition);
 6245
 6246impl Render for DraggedDock {
 6247    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6248        gpui::Empty
 6249    }
 6250}
 6251
 6252impl Render for Workspace {
 6253    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6254        let mut context = KeyContext::new_with_defaults();
 6255        context.add("Workspace");
 6256        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6257        if let Some(status) = self
 6258            .debugger_provider
 6259            .as_ref()
 6260            .and_then(|provider| provider.active_thread_state(cx))
 6261        {
 6262            match status {
 6263                ThreadStatus::Running | ThreadStatus::Stepping => {
 6264                    context.add("debugger_running");
 6265                }
 6266                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6267                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6268            }
 6269        }
 6270
 6271        let centered_layout = self.centered_layout
 6272            && self.center.panes().len() == 1
 6273            && self.active_item(cx).is_some();
 6274        let render_padding = |size| {
 6275            (size > 0.0).then(|| {
 6276                div()
 6277                    .h_full()
 6278                    .w(relative(size))
 6279                    .bg(cx.theme().colors().editor_background)
 6280                    .border_color(cx.theme().colors().pane_group_border)
 6281            })
 6282        };
 6283        let paddings = if centered_layout {
 6284            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6285            (
 6286                render_padding(Self::adjust_padding(settings.left_padding)),
 6287                render_padding(Self::adjust_padding(settings.right_padding)),
 6288            )
 6289        } else {
 6290            (None, None)
 6291        };
 6292        let ui_font = theme::setup_ui_font(window, cx);
 6293
 6294        let theme = cx.theme().clone();
 6295        let colors = theme.colors();
 6296        let notification_entities = self
 6297            .notifications
 6298            .iter()
 6299            .map(|(_, notification)| notification.entity_id())
 6300            .collect::<Vec<_>>();
 6301        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6302
 6303        client_side_decorations(
 6304            self.actions(div(), window, cx)
 6305                .key_context(context)
 6306                .relative()
 6307                .size_full()
 6308                .flex()
 6309                .flex_col()
 6310                .font(ui_font)
 6311                .gap_0()
 6312                .justify_start()
 6313                .items_start()
 6314                .text_color(colors.text)
 6315                .overflow_hidden()
 6316                .children(self.titlebar_item.clone())
 6317                .on_modifiers_changed(move |_, _, cx| {
 6318                    for &id in &notification_entities {
 6319                        cx.notify(id);
 6320                    }
 6321                })
 6322                .child(
 6323                    div()
 6324                        .size_full()
 6325                        .relative()
 6326                        .flex_1()
 6327                        .flex()
 6328                        .flex_col()
 6329                        .child(
 6330                            div()
 6331                                .id("workspace")
 6332                                .bg(colors.background)
 6333                                .relative()
 6334                                .flex_1()
 6335                                .w_full()
 6336                                .flex()
 6337                                .flex_col()
 6338                                .overflow_hidden()
 6339                                .border_t_1()
 6340                                .border_b_1()
 6341                                .border_color(colors.border)
 6342                                .child({
 6343                                    let this = cx.entity().clone();
 6344                                    canvas(
 6345                                        move |bounds, window, cx| {
 6346                                            this.update(cx, |this, cx| {
 6347                                                let bounds_changed = this.bounds != bounds;
 6348                                                this.bounds = bounds;
 6349
 6350                                                if bounds_changed {
 6351                                                    this.left_dock.update(cx, |dock, cx| {
 6352                                                        dock.clamp_panel_size(
 6353                                                            bounds.size.width,
 6354                                                            window,
 6355                                                            cx,
 6356                                                        )
 6357                                                    });
 6358
 6359                                                    this.right_dock.update(cx, |dock, cx| {
 6360                                                        dock.clamp_panel_size(
 6361                                                            bounds.size.width,
 6362                                                            window,
 6363                                                            cx,
 6364                                                        )
 6365                                                    });
 6366
 6367                                                    this.bottom_dock.update(cx, |dock, cx| {
 6368                                                        dock.clamp_panel_size(
 6369                                                            bounds.size.height,
 6370                                                            window,
 6371                                                            cx,
 6372                                                        )
 6373                                                    });
 6374                                                }
 6375                                            })
 6376                                        },
 6377                                        |_, _, _, _| {},
 6378                                    )
 6379                                    .absolute()
 6380                                    .size_full()
 6381                                })
 6382                                .when(self.zoomed.is_none(), |this| {
 6383                                    this.on_drag_move(cx.listener(
 6384                                        move |workspace,
 6385                                              e: &DragMoveEvent<DraggedDock>,
 6386                                              window,
 6387                                              cx| {
 6388                                            if workspace.previous_dock_drag_coordinates
 6389                                                != Some(e.event.position)
 6390                                            {
 6391                                                workspace.previous_dock_drag_coordinates =
 6392                                                    Some(e.event.position);
 6393                                                match e.drag(cx).0 {
 6394                                                    DockPosition::Left => {
 6395                                                        workspace.resize_left_dock(
 6396                                                            e.event.position.x
 6397                                                                - workspace.bounds.left(),
 6398                                                            window,
 6399                                                            cx,
 6400                                                        );
 6401                                                    }
 6402                                                    DockPosition::Right => {
 6403                                                        workspace.resize_right_dock(
 6404                                                            workspace.bounds.right()
 6405                                                                - e.event.position.x,
 6406                                                            window,
 6407                                                            cx,
 6408                                                        );
 6409                                                    }
 6410                                                    DockPosition::Bottom => {
 6411                                                        workspace.resize_bottom_dock(
 6412                                                            workspace.bounds.bottom()
 6413                                                                - e.event.position.y,
 6414                                                            window,
 6415                                                            cx,
 6416                                                        );
 6417                                                    }
 6418                                                };
 6419                                                workspace.serialize_workspace(window, cx);
 6420                                            }
 6421                                        },
 6422                                    ))
 6423                                })
 6424                                .child({
 6425                                    match bottom_dock_layout {
 6426                                        BottomDockLayout::Full => div()
 6427                                            .flex()
 6428                                            .flex_col()
 6429                                            .h_full()
 6430                                            .child(
 6431                                                div()
 6432                                                    .flex()
 6433                                                    .flex_row()
 6434                                                    .flex_1()
 6435                                                    .overflow_hidden()
 6436                                                    .children(self.render_dock(
 6437                                                        DockPosition::Left,
 6438                                                        &self.left_dock,
 6439                                                        window,
 6440                                                        cx,
 6441                                                    ))
 6442                                                    .child(
 6443                                                        div()
 6444                                                            .flex()
 6445                                                            .flex_col()
 6446                                                            .flex_1()
 6447                                                            .overflow_hidden()
 6448                                                            .child(
 6449                                                                h_flex()
 6450                                                                    .flex_1()
 6451                                                                    .when_some(
 6452                                                                        paddings.0,
 6453                                                                        |this, p| {
 6454                                                                            this.child(
 6455                                                                                p.border_r_1(),
 6456                                                                            )
 6457                                                                        },
 6458                                                                    )
 6459                                                                    .child(self.center.render(
 6460                                                                        self.zoomed.as_ref(),
 6461                                                                        &PaneRenderContext {
 6462                                                                            follower_states:
 6463                                                                                &self.follower_states,
 6464                                                                            active_call: self.active_call(),
 6465                                                                            active_pane: &self.active_pane,
 6466                                                                            app_state: &self.app_state,
 6467                                                                            project: &self.project,
 6468                                                                            workspace: &self.weak_self,
 6469                                                                        },
 6470                                                                        window,
 6471                                                                        cx,
 6472                                                                    ))
 6473                                                                    .when_some(
 6474                                                                        paddings.1,
 6475                                                                        |this, p| {
 6476                                                                            this.child(
 6477                                                                                p.border_l_1(),
 6478                                                                            )
 6479                                                                        },
 6480                                                                    ),
 6481                                                            ),
 6482                                                    )
 6483                                                    .children(self.render_dock(
 6484                                                        DockPosition::Right,
 6485                                                        &self.right_dock,
 6486                                                        window,
 6487                                                        cx,
 6488                                                    )),
 6489                                            )
 6490                                            .child(div().w_full().children(self.render_dock(
 6491                                                DockPosition::Bottom,
 6492                                                &self.bottom_dock,
 6493                                                window,
 6494                                                cx
 6495                                            ))),
 6496
 6497                                        BottomDockLayout::LeftAligned => div()
 6498                                            .flex()
 6499                                            .flex_row()
 6500                                            .h_full()
 6501                                            .child(
 6502                                                div()
 6503                                                    .flex()
 6504                                                    .flex_col()
 6505                                                    .flex_1()
 6506                                                    .h_full()
 6507                                                    .child(
 6508                                                        div()
 6509                                                            .flex()
 6510                                                            .flex_row()
 6511                                                            .flex_1()
 6512                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 6513                                                            .child(
 6514                                                                div()
 6515                                                                    .flex()
 6516                                                                    .flex_col()
 6517                                                                    .flex_1()
 6518                                                                    .overflow_hidden()
 6519                                                                    .child(
 6520                                                                        h_flex()
 6521                                                                            .flex_1()
 6522                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6523                                                                            .child(self.center.render(
 6524                                                                                self.zoomed.as_ref(),
 6525                                                                                &PaneRenderContext {
 6526                                                                                    follower_states:
 6527                                                                                        &self.follower_states,
 6528                                                                                    active_call: self.active_call(),
 6529                                                                                    active_pane: &self.active_pane,
 6530                                                                                    app_state: &self.app_state,
 6531                                                                                    project: &self.project,
 6532                                                                                    workspace: &self.weak_self,
 6533                                                                                },
 6534                                                                                window,
 6535                                                                                cx,
 6536                                                                            ))
 6537                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6538                                                                    )
 6539                                                            )
 6540                                                    )
 6541                                                    .child(
 6542                                                        div()
 6543                                                            .w_full()
 6544                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6545                                                    ),
 6546                                            )
 6547                                            .children(self.render_dock(
 6548                                                DockPosition::Right,
 6549                                                &self.right_dock,
 6550                                                window,
 6551                                                cx,
 6552                                            )),
 6553
 6554                                        BottomDockLayout::RightAligned => div()
 6555                                            .flex()
 6556                                            .flex_row()
 6557                                            .h_full()
 6558                                            .children(self.render_dock(
 6559                                                DockPosition::Left,
 6560                                                &self.left_dock,
 6561                                                window,
 6562                                                cx,
 6563                                            ))
 6564                                            .child(
 6565                                                div()
 6566                                                    .flex()
 6567                                                    .flex_col()
 6568                                                    .flex_1()
 6569                                                    .h_full()
 6570                                                    .child(
 6571                                                        div()
 6572                                                            .flex()
 6573                                                            .flex_row()
 6574                                                            .flex_1()
 6575                                                            .child(
 6576                                                                div()
 6577                                                                    .flex()
 6578                                                                    .flex_col()
 6579                                                                    .flex_1()
 6580                                                                    .overflow_hidden()
 6581                                                                    .child(
 6582                                                                        h_flex()
 6583                                                                            .flex_1()
 6584                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6585                                                                            .child(self.center.render(
 6586                                                                                self.zoomed.as_ref(),
 6587                                                                                &PaneRenderContext {
 6588                                                                                    follower_states:
 6589                                                                                        &self.follower_states,
 6590                                                                                    active_call: self.active_call(),
 6591                                                                                    active_pane: &self.active_pane,
 6592                                                                                    app_state: &self.app_state,
 6593                                                                                    project: &self.project,
 6594                                                                                    workspace: &self.weak_self,
 6595                                                                                },
 6596                                                                                window,
 6597                                                                                cx,
 6598                                                                            ))
 6599                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6600                                                                    )
 6601                                                            )
 6602                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 6603                                                    )
 6604                                                    .child(
 6605                                                        div()
 6606                                                            .w_full()
 6607                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6608                                                    ),
 6609                                            ),
 6610
 6611                                        BottomDockLayout::Contained => div()
 6612                                            .flex()
 6613                                            .flex_row()
 6614                                            .h_full()
 6615                                            .children(self.render_dock(
 6616                                                DockPosition::Left,
 6617                                                &self.left_dock,
 6618                                                window,
 6619                                                cx,
 6620                                            ))
 6621                                            .child(
 6622                                                div()
 6623                                                    .flex()
 6624                                                    .flex_col()
 6625                                                    .flex_1()
 6626                                                    .overflow_hidden()
 6627                                                    .child(
 6628                                                        h_flex()
 6629                                                            .flex_1()
 6630                                                            .when_some(paddings.0, |this, p| {
 6631                                                                this.child(p.border_r_1())
 6632                                                            })
 6633                                                            .child(self.center.render(
 6634                                                                self.zoomed.as_ref(),
 6635                                                                &PaneRenderContext {
 6636                                                                    follower_states:
 6637                                                                        &self.follower_states,
 6638                                                                    active_call: self.active_call(),
 6639                                                                    active_pane: &self.active_pane,
 6640                                                                    app_state: &self.app_state,
 6641                                                                    project: &self.project,
 6642                                                                    workspace: &self.weak_self,
 6643                                                                },
 6644                                                                window,
 6645                                                                cx,
 6646                                                            ))
 6647                                                            .when_some(paddings.1, |this, p| {
 6648                                                                this.child(p.border_l_1())
 6649                                                            }),
 6650                                                    )
 6651                                                    .children(self.render_dock(
 6652                                                        DockPosition::Bottom,
 6653                                                        &self.bottom_dock,
 6654                                                        window,
 6655                                                        cx,
 6656                                                    )),
 6657                                            )
 6658                                            .children(self.render_dock(
 6659                                                DockPosition::Right,
 6660                                                &self.right_dock,
 6661                                                window,
 6662                                                cx,
 6663                                            )),
 6664                                    }
 6665                                })
 6666                                .children(self.zoomed.as_ref().and_then(|view| {
 6667                                    Some(div()
 6668                                        .occlude()
 6669                                        .absolute()
 6670                                        .overflow_hidden()
 6671                                        .border_color(colors.border)
 6672                                        .bg(colors.background)
 6673                                        .child(view.upgrade()?)
 6674                                        .inset_0()
 6675                                        .shadow_lg())
 6676                                }))
 6677                                .children(self.render_notifications(window, cx)),
 6678                        )
 6679                        .child(self.status_bar.clone())
 6680                        .child(self.modal_layer.clone())
 6681                        .child(self.toast_layer.clone()),
 6682                ),
 6683            window,
 6684            cx,
 6685        )
 6686    }
 6687}
 6688
 6689impl WorkspaceStore {
 6690    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 6691        Self {
 6692            workspaces: Default::default(),
 6693            _subscriptions: vec![
 6694                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 6695                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 6696            ],
 6697            client,
 6698        }
 6699    }
 6700
 6701    pub fn update_followers(
 6702        &self,
 6703        project_id: Option<u64>,
 6704        update: proto::update_followers::Variant,
 6705        cx: &App,
 6706    ) -> Option<()> {
 6707        let active_call = ActiveCall::try_global(cx)?;
 6708        let room_id = active_call.read(cx).room()?.read(cx).id();
 6709        self.client
 6710            .send(proto::UpdateFollowers {
 6711                room_id,
 6712                project_id,
 6713                variant: Some(update),
 6714            })
 6715            .log_err()
 6716    }
 6717
 6718    pub async fn handle_follow(
 6719        this: Entity<Self>,
 6720        envelope: TypedEnvelope<proto::Follow>,
 6721        mut cx: AsyncApp,
 6722    ) -> Result<proto::FollowResponse> {
 6723        this.update(&mut cx, |this, cx| {
 6724            let follower = Follower {
 6725                project_id: envelope.payload.project_id,
 6726                peer_id: envelope.original_sender_id()?,
 6727            };
 6728
 6729            let mut response = proto::FollowResponse::default();
 6730            this.workspaces.retain(|workspace| {
 6731                workspace
 6732                    .update(cx, |workspace, window, cx| {
 6733                        let handler_response =
 6734                            workspace.handle_follow(follower.project_id, window, cx);
 6735                        if let Some(active_view) = handler_response.active_view.clone() {
 6736                            if workspace.project.read(cx).remote_id() == follower.project_id {
 6737                                response.active_view = Some(active_view)
 6738                            }
 6739                        }
 6740                    })
 6741                    .is_ok()
 6742            });
 6743
 6744            Ok(response)
 6745        })?
 6746    }
 6747
 6748    async fn handle_update_followers(
 6749        this: Entity<Self>,
 6750        envelope: TypedEnvelope<proto::UpdateFollowers>,
 6751        mut cx: AsyncApp,
 6752    ) -> Result<()> {
 6753        let leader_id = envelope.original_sender_id()?;
 6754        let update = envelope.payload;
 6755
 6756        this.update(&mut cx, |this, cx| {
 6757            this.workspaces.retain(|workspace| {
 6758                workspace
 6759                    .update(cx, |workspace, window, cx| {
 6760                        let project_id = workspace.project.read(cx).remote_id();
 6761                        if update.project_id != project_id && update.project_id.is_some() {
 6762                            return;
 6763                        }
 6764                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 6765                    })
 6766                    .is_ok()
 6767            });
 6768            Ok(())
 6769        })?
 6770    }
 6771
 6772    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 6773        &self.workspaces
 6774    }
 6775}
 6776
 6777impl ViewId {
 6778    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 6779        Ok(Self {
 6780            creator: message
 6781                .creator
 6782                .map(CollaboratorId::PeerId)
 6783                .context("creator is missing")?,
 6784            id: message.id,
 6785        })
 6786    }
 6787
 6788    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 6789        if let CollaboratorId::PeerId(peer_id) = self.creator {
 6790            Some(proto::ViewId {
 6791                creator: Some(peer_id),
 6792                id: self.id,
 6793            })
 6794        } else {
 6795            None
 6796        }
 6797    }
 6798}
 6799
 6800impl FollowerState {
 6801    fn pane(&self) -> &Entity<Pane> {
 6802        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 6803    }
 6804}
 6805
 6806pub trait WorkspaceHandle {
 6807    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 6808}
 6809
 6810impl WorkspaceHandle for Entity<Workspace> {
 6811    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 6812        self.read(cx)
 6813            .worktrees(cx)
 6814            .flat_map(|worktree| {
 6815                let worktree_id = worktree.read(cx).id();
 6816                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 6817                    worktree_id,
 6818                    path: f.path.clone(),
 6819                })
 6820            })
 6821            .collect::<Vec<_>>()
 6822    }
 6823}
 6824
 6825impl std::fmt::Debug for OpenPaths {
 6826    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
 6827        f.debug_struct("OpenPaths")
 6828            .field("paths", &self.paths)
 6829            .finish()
 6830    }
 6831}
 6832
 6833pub async fn last_opened_workspace_location() -> Option<SerializedWorkspaceLocation> {
 6834    DB.last_workspace().await.log_err().flatten()
 6835}
 6836
 6837pub fn last_session_workspace_locations(
 6838    last_session_id: &str,
 6839    last_session_window_stack: Option<Vec<WindowId>>,
 6840) -> Option<Vec<SerializedWorkspaceLocation>> {
 6841    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 6842        .log_err()
 6843}
 6844
 6845actions!(
 6846    collab,
 6847    [
 6848        /// Opens the channel notes for the current call.
 6849        ///
 6850        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 6851        /// can be copied via "Copy link to section" in the context menu of the channel notes
 6852        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 6853        OpenChannelNotes,
 6854        /// Mutes your microphone.
 6855        Mute,
 6856        /// Deafens yourself (mute both microphone and speakers).
 6857        Deafen,
 6858        /// Leaves the current call.
 6859        LeaveCall,
 6860        /// Shares the current project with collaborators.
 6861        ShareProject,
 6862        /// Shares your screen with collaborators.
 6863        ScreenShare
 6864    ]
 6865);
 6866actions!(
 6867    zed,
 6868    [
 6869        /// Opens the Zed log file.
 6870        OpenLog
 6871    ]
 6872);
 6873
 6874async fn join_channel_internal(
 6875    channel_id: ChannelId,
 6876    app_state: &Arc<AppState>,
 6877    requesting_window: Option<WindowHandle<Workspace>>,
 6878    active_call: &Entity<ActiveCall>,
 6879    cx: &mut AsyncApp,
 6880) -> Result<bool> {
 6881    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 6882        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 6883            return (false, None);
 6884        };
 6885
 6886        let already_in_channel = room.channel_id() == Some(channel_id);
 6887        let should_prompt = room.is_sharing_project()
 6888            && !room.remote_participants().is_empty()
 6889            && !already_in_channel;
 6890        let open_room = if already_in_channel {
 6891            active_call.room().cloned()
 6892        } else {
 6893            None
 6894        };
 6895        (should_prompt, open_room)
 6896    })?;
 6897
 6898    if let Some(room) = open_room {
 6899        let task = room.update(cx, |room, cx| {
 6900            if let Some((project, host)) = room.most_active_project(cx) {
 6901                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 6902            }
 6903
 6904            None
 6905        })?;
 6906        if let Some(task) = task {
 6907            task.await?;
 6908        }
 6909        return anyhow::Ok(true);
 6910    }
 6911
 6912    if should_prompt {
 6913        if let Some(workspace) = requesting_window {
 6914            let answer = workspace
 6915                .update(cx, |_, window, cx| {
 6916                    window.prompt(
 6917                        PromptLevel::Warning,
 6918                        "Do you want to switch channels?",
 6919                        Some("Leaving this call will unshare your current project."),
 6920                        &["Yes, Join Channel", "Cancel"],
 6921                        cx,
 6922                    )
 6923                })?
 6924                .await;
 6925
 6926            if answer == Ok(1) {
 6927                return Ok(false);
 6928            }
 6929        } else {
 6930            return Ok(false); // unreachable!() hopefully
 6931        }
 6932    }
 6933
 6934    let client = cx.update(|cx| active_call.read(cx).client())?;
 6935
 6936    let mut client_status = client.status();
 6937
 6938    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 6939    'outer: loop {
 6940        let Some(status) = client_status.recv().await else {
 6941            anyhow::bail!("error connecting");
 6942        };
 6943
 6944        match status {
 6945            Status::Connecting
 6946            | Status::Authenticating
 6947            | Status::Authenticated
 6948            | Status::Reconnecting
 6949            | Status::Reauthenticating => continue,
 6950            Status::Connected { .. } => break 'outer,
 6951            Status::SignedOut | Status::AuthenticationError => {
 6952                return Err(ErrorCode::SignedOut.into());
 6953            }
 6954            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 6955            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 6956                return Err(ErrorCode::Disconnected.into());
 6957            }
 6958        }
 6959    }
 6960
 6961    let room = active_call
 6962        .update(cx, |active_call, cx| {
 6963            active_call.join_channel(channel_id, cx)
 6964        })?
 6965        .await?;
 6966
 6967    let Some(room) = room else {
 6968        return anyhow::Ok(true);
 6969    };
 6970
 6971    room.update(cx, |room, _| room.room_update_completed())?
 6972        .await;
 6973
 6974    let task = room.update(cx, |room, cx| {
 6975        if let Some((project, host)) = room.most_active_project(cx) {
 6976            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 6977        }
 6978
 6979        // If you are the first to join a channel, see if you should share your project.
 6980        if room.remote_participants().is_empty() && !room.local_participant_is_guest() {
 6981            if let Some(workspace) = requesting_window {
 6982                let project = workspace.update(cx, |workspace, _, cx| {
 6983                    let project = workspace.project.read(cx);
 6984
 6985                    if !CallSettings::get_global(cx).share_on_join {
 6986                        return None;
 6987                    }
 6988
 6989                    if (project.is_local() || project.is_via_ssh())
 6990                        && project.visible_worktrees(cx).any(|tree| {
 6991                            tree.read(cx)
 6992                                .root_entry()
 6993                                .map_or(false, |entry| entry.is_dir())
 6994                        })
 6995                    {
 6996                        Some(workspace.project.clone())
 6997                    } else {
 6998                        None
 6999                    }
 7000                });
 7001                if let Ok(Some(project)) = project {
 7002                    return Some(cx.spawn(async move |room, cx| {
 7003                        room.update(cx, |room, cx| room.share_project(project, cx))?
 7004                            .await?;
 7005                        Ok(())
 7006                    }));
 7007                }
 7008            }
 7009        }
 7010
 7011        None
 7012    })?;
 7013    if let Some(task) = task {
 7014        task.await?;
 7015        return anyhow::Ok(true);
 7016    }
 7017    anyhow::Ok(false)
 7018}
 7019
 7020pub fn join_channel(
 7021    channel_id: ChannelId,
 7022    app_state: Arc<AppState>,
 7023    requesting_window: Option<WindowHandle<Workspace>>,
 7024    cx: &mut App,
 7025) -> Task<Result<()>> {
 7026    let active_call = ActiveCall::global(cx);
 7027    cx.spawn(async move |cx| {
 7028        let result = join_channel_internal(
 7029            channel_id,
 7030            &app_state,
 7031            requesting_window,
 7032            &active_call,
 7033             cx,
 7034        )
 7035            .await;
 7036
 7037        // join channel succeeded, and opened a window
 7038        if matches!(result, Ok(true)) {
 7039            return anyhow::Ok(());
 7040        }
 7041
 7042        // find an existing workspace to focus and show call controls
 7043        let mut active_window =
 7044            requesting_window.or_else(|| activate_any_workspace_window( cx));
 7045        if active_window.is_none() {
 7046            // no open workspaces, make one to show the error in (blergh)
 7047            let (window_handle, _) = cx
 7048                .update(|cx| {
 7049                    Workspace::new_local(vec![], app_state.clone(), requesting_window, None, cx)
 7050                })?
 7051                .await?;
 7052
 7053            if result.is_ok() {
 7054                cx.update(|cx| {
 7055                    cx.dispatch_action(&OpenChannelNotes);
 7056                }).log_err();
 7057            }
 7058
 7059            active_window = Some(window_handle);
 7060        }
 7061
 7062        if let Err(err) = result {
 7063            log::error!("failed to join channel: {}", err);
 7064            if let Some(active_window) = active_window {
 7065                active_window
 7066                    .update(cx, |_, window, cx| {
 7067                        let detail: SharedString = match err.error_code() {
 7068                            ErrorCode::SignedOut => {
 7069                                "Please sign in to continue.".into()
 7070                            }
 7071                            ErrorCode::UpgradeRequired => {
 7072                                "Your are running an unsupported version of Zed. Please update to continue.".into()
 7073                            }
 7074                            ErrorCode::NoSuchChannel => {
 7075                                "No matching channel was found. Please check the link and try again.".into()
 7076                            }
 7077                            ErrorCode::Forbidden => {
 7078                                "This channel is private, and you do not have access. Please ask someone to add you and try again.".into()
 7079                            }
 7080                            ErrorCode::Disconnected => "Please check your internet connection and try again.".into(),
 7081                            _ => format!("{}\n\nPlease try again.", err).into(),
 7082                        };
 7083                        window.prompt(
 7084                            PromptLevel::Critical,
 7085                            "Failed to join channel",
 7086                            Some(&detail),
 7087                            &["Ok"],
 7088                        cx)
 7089                    })?
 7090                    .await
 7091                    .ok();
 7092            }
 7093        }
 7094
 7095        // return ok, we showed the error to the user.
 7096        anyhow::Ok(())
 7097    })
 7098}
 7099
 7100pub async fn get_any_active_workspace(
 7101    app_state: Arc<AppState>,
 7102    mut cx: AsyncApp,
 7103) -> anyhow::Result<WindowHandle<Workspace>> {
 7104    // find an existing workspace to focus and show call controls
 7105    let active_window = activate_any_workspace_window(&mut cx);
 7106    if active_window.is_none() {
 7107        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, cx))?
 7108            .await?;
 7109    }
 7110    activate_any_workspace_window(&mut cx).context("could not open zed")
 7111}
 7112
 7113fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7114    cx.update(|cx| {
 7115        if let Some(workspace_window) = cx
 7116            .active_window()
 7117            .and_then(|window| window.downcast::<Workspace>())
 7118        {
 7119            return Some(workspace_window);
 7120        }
 7121
 7122        for window in cx.windows() {
 7123            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7124                workspace_window
 7125                    .update(cx, |_, window, _| window.activate_window())
 7126                    .ok();
 7127                return Some(workspace_window);
 7128            }
 7129        }
 7130        None
 7131    })
 7132    .ok()
 7133    .flatten()
 7134}
 7135
 7136pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7137    cx.windows()
 7138        .into_iter()
 7139        .filter_map(|window| window.downcast::<Workspace>())
 7140        .filter(|workspace| {
 7141            workspace
 7142                .read(cx)
 7143                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7144        })
 7145        .collect()
 7146}
 7147
 7148#[derive(Default)]
 7149pub struct OpenOptions {
 7150    pub visible: Option<OpenVisible>,
 7151    pub focus: Option<bool>,
 7152    pub open_new_workspace: Option<bool>,
 7153    pub replace_window: Option<WindowHandle<Workspace>>,
 7154    pub env: Option<HashMap<String, String>>,
 7155}
 7156
 7157#[allow(clippy::type_complexity)]
 7158pub fn open_paths(
 7159    abs_paths: &[PathBuf],
 7160    app_state: Arc<AppState>,
 7161    open_options: OpenOptions,
 7162    cx: &mut App,
 7163) -> Task<
 7164    anyhow::Result<(
 7165        WindowHandle<Workspace>,
 7166        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7167    )>,
 7168> {
 7169    let abs_paths = abs_paths.to_vec();
 7170    let mut existing = None;
 7171    let mut best_match = None;
 7172    let mut open_visible = OpenVisible::All;
 7173
 7174    cx.spawn(async move |cx| {
 7175        if open_options.open_new_workspace != Some(true) {
 7176            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7177            let all_metadatas = futures::future::join_all(all_paths)
 7178                .await
 7179                .into_iter()
 7180                .filter_map(|result| result.ok().flatten())
 7181                .collect::<Vec<_>>();
 7182
 7183            cx.update(|cx| {
 7184                for window in local_workspace_windows(&cx) {
 7185                    if let Ok(workspace) = window.read(&cx) {
 7186                        let m = workspace.project.read(&cx).visibility_for_paths(
 7187                            &abs_paths,
 7188                            &all_metadatas,
 7189                            open_options.open_new_workspace == None,
 7190                            cx,
 7191                        );
 7192                        if m > best_match {
 7193                            existing = Some(window);
 7194                            best_match = m;
 7195                        } else if best_match.is_none()
 7196                            && open_options.open_new_workspace == Some(false)
 7197                        {
 7198                            existing = Some(window)
 7199                        }
 7200                    }
 7201                }
 7202            })?;
 7203
 7204            if open_options.open_new_workspace.is_none() && existing.is_none() {
 7205                if all_metadatas.iter().all(|file| !file.is_dir) {
 7206                    cx.update(|cx| {
 7207                        if let Some(window) = cx
 7208                            .active_window()
 7209                            .and_then(|window| window.downcast::<Workspace>())
 7210                        {
 7211                            if let Ok(workspace) = window.read(cx) {
 7212                                let project = workspace.project().read(cx);
 7213                                if project.is_local() && !project.is_via_collab() {
 7214                                    existing = Some(window);
 7215                                    open_visible = OpenVisible::None;
 7216                                    return;
 7217                                }
 7218                            }
 7219                        }
 7220                        for window in local_workspace_windows(cx) {
 7221                            if let Ok(workspace) = window.read(cx) {
 7222                                let project = workspace.project().read(cx);
 7223                                if project.is_via_collab() {
 7224                                    continue;
 7225                                }
 7226                                existing = Some(window);
 7227                                open_visible = OpenVisible::None;
 7228                                break;
 7229                            }
 7230                        }
 7231                    })?;
 7232                }
 7233            }
 7234        }
 7235
 7236        if let Some(existing) = existing {
 7237            let open_task = existing
 7238                .update(cx, |workspace, window, cx| {
 7239                    window.activate_window();
 7240                    workspace.open_paths(
 7241                        abs_paths,
 7242                        OpenOptions {
 7243                            visible: Some(open_visible),
 7244                            ..Default::default()
 7245                        },
 7246                        None,
 7247                        window,
 7248                        cx,
 7249                    )
 7250                })?
 7251                .await;
 7252
 7253            _ = existing.update(cx, |workspace, _, cx| {
 7254                for item in open_task.iter().flatten() {
 7255                    if let Err(e) = item {
 7256                        workspace.show_error(&e, cx);
 7257                    }
 7258                }
 7259            });
 7260
 7261            Ok((existing, open_task))
 7262        } else {
 7263            cx.update(move |cx| {
 7264                Workspace::new_local(
 7265                    abs_paths,
 7266                    app_state.clone(),
 7267                    open_options.replace_window,
 7268                    open_options.env,
 7269                    cx,
 7270                )
 7271            })?
 7272            .await
 7273        }
 7274    })
 7275}
 7276
 7277pub fn open_new(
 7278    open_options: OpenOptions,
 7279    app_state: Arc<AppState>,
 7280    cx: &mut App,
 7281    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 7282) -> Task<anyhow::Result<()>> {
 7283    let task = Workspace::new_local(Vec::new(), app_state, None, open_options.env, cx);
 7284    cx.spawn(async move |cx| {
 7285        let (workspace, opened_paths) = task.await?;
 7286        workspace.update(cx, |workspace, window, cx| {
 7287            if opened_paths.is_empty() {
 7288                init(workspace, window, cx)
 7289            }
 7290        })?;
 7291        Ok(())
 7292    })
 7293}
 7294
 7295pub fn create_and_open_local_file(
 7296    path: &'static Path,
 7297    window: &mut Window,
 7298    cx: &mut Context<Workspace>,
 7299    default_content: impl 'static + Send + FnOnce() -> Rope,
 7300) -> Task<Result<Box<dyn ItemHandle>>> {
 7301    cx.spawn_in(window, async move |workspace, cx| {
 7302        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 7303        if !fs.is_file(path).await {
 7304            fs.create_file(path, Default::default()).await?;
 7305            fs.save(path, &default_content(), Default::default())
 7306                .await?;
 7307        }
 7308
 7309        let mut items = workspace
 7310            .update_in(cx, |workspace, window, cx| {
 7311                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 7312                    workspace.open_paths(
 7313                        vec![path.to_path_buf()],
 7314                        OpenOptions {
 7315                            visible: Some(OpenVisible::None),
 7316                            ..Default::default()
 7317                        },
 7318                        None,
 7319                        window,
 7320                        cx,
 7321                    )
 7322                })
 7323            })?
 7324            .await?
 7325            .await;
 7326
 7327        let item = items.pop().flatten();
 7328        item.with_context(|| format!("path {path:?} is not a file"))?
 7329    })
 7330}
 7331
 7332pub fn open_ssh_project_with_new_connection(
 7333    window: WindowHandle<Workspace>,
 7334    connection_options: SshConnectionOptions,
 7335    cancel_rx: oneshot::Receiver<()>,
 7336    delegate: Arc<dyn SshClientDelegate>,
 7337    app_state: Arc<AppState>,
 7338    paths: Vec<PathBuf>,
 7339    cx: &mut App,
 7340) -> Task<Result<()>> {
 7341    cx.spawn(async move |cx| {
 7342        let (serialized_ssh_project, workspace_id, serialized_workspace) =
 7343            serialize_ssh_project(connection_options.clone(), paths.clone(), &cx).await?;
 7344
 7345        let session = match cx
 7346            .update(|cx| {
 7347                remote::SshRemoteClient::new(
 7348                    ConnectionIdentifier::Workspace(workspace_id.0),
 7349                    connection_options,
 7350                    cancel_rx,
 7351                    delegate,
 7352                    cx,
 7353                )
 7354            })?
 7355            .await?
 7356        {
 7357            Some(result) => result,
 7358            None => return Ok(()),
 7359        };
 7360
 7361        let project = cx.update(|cx| {
 7362            project::Project::ssh(
 7363                session,
 7364                app_state.client.clone(),
 7365                app_state.node_runtime.clone(),
 7366                app_state.user_store.clone(),
 7367                app_state.languages.clone(),
 7368                app_state.fs.clone(),
 7369                cx,
 7370            )
 7371        })?;
 7372
 7373        open_ssh_project_inner(
 7374            project,
 7375            paths,
 7376            serialized_ssh_project,
 7377            workspace_id,
 7378            serialized_workspace,
 7379            app_state,
 7380            window,
 7381            cx,
 7382        )
 7383        .await
 7384    })
 7385}
 7386
 7387pub fn open_ssh_project_with_existing_connection(
 7388    connection_options: SshConnectionOptions,
 7389    project: Entity<Project>,
 7390    paths: Vec<PathBuf>,
 7391    app_state: Arc<AppState>,
 7392    window: WindowHandle<Workspace>,
 7393    cx: &mut AsyncApp,
 7394) -> Task<Result<()>> {
 7395    cx.spawn(async move |cx| {
 7396        let (serialized_ssh_project, workspace_id, serialized_workspace) =
 7397            serialize_ssh_project(connection_options.clone(), paths.clone(), &cx).await?;
 7398
 7399        open_ssh_project_inner(
 7400            project,
 7401            paths,
 7402            serialized_ssh_project,
 7403            workspace_id,
 7404            serialized_workspace,
 7405            app_state,
 7406            window,
 7407            cx,
 7408        )
 7409        .await
 7410    })
 7411}
 7412
 7413async fn open_ssh_project_inner(
 7414    project: Entity<Project>,
 7415    paths: Vec<PathBuf>,
 7416    serialized_ssh_project: SerializedSshProject,
 7417    workspace_id: WorkspaceId,
 7418    serialized_workspace: Option<SerializedWorkspace>,
 7419    app_state: Arc<AppState>,
 7420    window: WindowHandle<Workspace>,
 7421    cx: &mut AsyncApp,
 7422) -> Result<()> {
 7423    let toolchains = DB.toolchains(workspace_id).await?;
 7424    for (toolchain, worktree_id, path) in toolchains {
 7425        project
 7426            .update(cx, |this, cx| {
 7427                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 7428            })?
 7429            .await;
 7430    }
 7431    let mut project_paths_to_open = vec![];
 7432    let mut project_path_errors = vec![];
 7433
 7434    for path in paths {
 7435        let result = cx
 7436            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 7437            .await;
 7438        match result {
 7439            Ok((_, project_path)) => {
 7440                project_paths_to_open.push((path.clone(), Some(project_path)));
 7441            }
 7442            Err(error) => {
 7443                project_path_errors.push(error);
 7444            }
 7445        };
 7446    }
 7447
 7448    if project_paths_to_open.is_empty() {
 7449        return Err(project_path_errors.pop().context("no paths given")?);
 7450    }
 7451
 7452    if let Some(detach_session_task) = window
 7453        .update(cx, |_workspace, window, cx| {
 7454            cx.spawn_in(window, async move |this, cx| {
 7455                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 7456            })
 7457        })
 7458        .ok()
 7459    {
 7460        detach_session_task.await.ok();
 7461    }
 7462
 7463    cx.update_window(window.into(), |_, window, cx| {
 7464        window.replace_root(cx, |window, cx| {
 7465            telemetry::event!("SSH Project Opened");
 7466
 7467            let mut workspace =
 7468                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 7469            workspace.set_serialized_ssh_project(serialized_ssh_project);
 7470            workspace.update_history(cx);
 7471
 7472            if let Some(ref serialized) = serialized_workspace {
 7473                workspace.centered_layout = serialized.centered_layout;
 7474            }
 7475
 7476            workspace
 7477        });
 7478    })?;
 7479
 7480    window
 7481        .update(cx, |_, window, cx| {
 7482            window.activate_window();
 7483            open_items(serialized_workspace, project_paths_to_open, window, cx)
 7484        })?
 7485        .await?;
 7486
 7487    window.update(cx, |workspace, _, cx| {
 7488        for error in project_path_errors {
 7489            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 7490                if let Some(path) = error.error_tag("path") {
 7491                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 7492                }
 7493            } else {
 7494                workspace.show_error(&error, cx)
 7495            }
 7496        }
 7497    })?;
 7498
 7499    Ok(())
 7500}
 7501
 7502fn serialize_ssh_project(
 7503    connection_options: SshConnectionOptions,
 7504    paths: Vec<PathBuf>,
 7505    cx: &AsyncApp,
 7506) -> Task<
 7507    Result<(
 7508        SerializedSshProject,
 7509        WorkspaceId,
 7510        Option<SerializedWorkspace>,
 7511    )>,
 7512> {
 7513    cx.background_spawn(async move {
 7514        let serialized_ssh_project = persistence::DB
 7515            .get_or_create_ssh_project(
 7516                connection_options.host.clone(),
 7517                connection_options.port,
 7518                paths
 7519                    .iter()
 7520                    .map(|path| path.to_string_lossy().to_string())
 7521                    .collect::<Vec<_>>(),
 7522                connection_options.username.clone(),
 7523            )
 7524            .await?;
 7525
 7526        let serialized_workspace =
 7527            persistence::DB.workspace_for_ssh_project(&serialized_ssh_project);
 7528
 7529        let workspace_id = if let Some(workspace_id) =
 7530            serialized_workspace.as_ref().map(|workspace| workspace.id)
 7531        {
 7532            workspace_id
 7533        } else {
 7534            persistence::DB.next_id().await?
 7535        };
 7536
 7537        Ok((serialized_ssh_project, workspace_id, serialized_workspace))
 7538    })
 7539}
 7540
 7541pub fn join_in_room_project(
 7542    project_id: u64,
 7543    follow_user_id: u64,
 7544    app_state: Arc<AppState>,
 7545    cx: &mut App,
 7546) -> Task<Result<()>> {
 7547    let windows = cx.windows();
 7548    cx.spawn(async move |cx| {
 7549        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 7550            window_handle
 7551                .downcast::<Workspace>()
 7552                .and_then(|window_handle| {
 7553                    window_handle
 7554                        .update(cx, |workspace, _window, cx| {
 7555                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 7556                                Some(window_handle)
 7557                            } else {
 7558                                None
 7559                            }
 7560                        })
 7561                        .unwrap_or(None)
 7562                })
 7563        });
 7564
 7565        let workspace = if let Some(existing_workspace) = existing_workspace {
 7566            existing_workspace
 7567        } else {
 7568            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 7569            let room = active_call
 7570                .read_with(cx, |call, _| call.room().cloned())?
 7571                .context("not in a call")?;
 7572            let project = room
 7573                .update(cx, |room, cx| {
 7574                    room.join_project(
 7575                        project_id,
 7576                        app_state.languages.clone(),
 7577                        app_state.fs.clone(),
 7578                        cx,
 7579                    )
 7580                })?
 7581                .await?;
 7582
 7583            let window_bounds_override = window_bounds_env_override();
 7584            cx.update(|cx| {
 7585                let mut options = (app_state.build_window_options)(None, cx);
 7586                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 7587                cx.open_window(options, |window, cx| {
 7588                    cx.new(|cx| {
 7589                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 7590                    })
 7591                })
 7592            })??
 7593        };
 7594
 7595        workspace.update(cx, |workspace, window, cx| {
 7596            cx.activate(true);
 7597            window.activate_window();
 7598
 7599            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 7600                let follow_peer_id = room
 7601                    .read(cx)
 7602                    .remote_participants()
 7603                    .iter()
 7604                    .find(|(_, participant)| participant.user.id == follow_user_id)
 7605                    .map(|(_, p)| p.peer_id)
 7606                    .or_else(|| {
 7607                        // If we couldn't follow the given user, follow the host instead.
 7608                        let collaborator = workspace
 7609                            .project()
 7610                            .read(cx)
 7611                            .collaborators()
 7612                            .values()
 7613                            .find(|collaborator| collaborator.is_host)?;
 7614                        Some(collaborator.peer_id)
 7615                    });
 7616
 7617                if let Some(follow_peer_id) = follow_peer_id {
 7618                    workspace.follow(follow_peer_id, window, cx);
 7619                }
 7620            }
 7621        })?;
 7622
 7623        anyhow::Ok(())
 7624    })
 7625}
 7626
 7627pub fn reload(cx: &mut App) {
 7628    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 7629    let mut workspace_windows = cx
 7630        .windows()
 7631        .into_iter()
 7632        .filter_map(|window| window.downcast::<Workspace>())
 7633        .collect::<Vec<_>>();
 7634
 7635    // If multiple windows have unsaved changes, and need a save prompt,
 7636    // prompt in the active window before switching to a different window.
 7637    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 7638
 7639    let mut prompt = None;
 7640    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 7641        prompt = window
 7642            .update(cx, |_, window, cx| {
 7643                window.prompt(
 7644                    PromptLevel::Info,
 7645                    "Are you sure you want to restart?",
 7646                    None,
 7647                    &["Restart", "Cancel"],
 7648                    cx,
 7649                )
 7650            })
 7651            .ok();
 7652    }
 7653
 7654    cx.spawn(async move |cx| {
 7655        if let Some(prompt) = prompt {
 7656            let answer = prompt.await?;
 7657            if answer != 0 {
 7658                return Ok(());
 7659            }
 7660        }
 7661
 7662        // If the user cancels any save prompt, then keep the app open.
 7663        for window in workspace_windows {
 7664            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 7665                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 7666            }) {
 7667                if !should_close.await? {
 7668                    return Ok(());
 7669                }
 7670            }
 7671        }
 7672        cx.update(|cx| cx.restart())
 7673    })
 7674    .detach_and_log_err(cx);
 7675}
 7676
 7677fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 7678    let mut parts = value.split(',');
 7679    let x: usize = parts.next()?.parse().ok()?;
 7680    let y: usize = parts.next()?.parse().ok()?;
 7681    Some(point(px(x as f32), px(y as f32)))
 7682}
 7683
 7684fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 7685    let mut parts = value.split(',');
 7686    let width: usize = parts.next()?.parse().ok()?;
 7687    let height: usize = parts.next()?.parse().ok()?;
 7688    Some(size(px(width as f32), px(height as f32)))
 7689}
 7690
 7691/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 7692pub fn client_side_decorations(
 7693    element: impl IntoElement,
 7694    window: &mut Window,
 7695    cx: &mut App,
 7696) -> Stateful<Div> {
 7697    const BORDER_SIZE: Pixels = px(1.0);
 7698    let decorations = window.window_decorations();
 7699
 7700    match decorations {
 7701        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 7702        Decorations::Server { .. } => window.set_client_inset(px(0.0)),
 7703    }
 7704
 7705    struct GlobalResizeEdge(ResizeEdge);
 7706    impl Global for GlobalResizeEdge {}
 7707
 7708    div()
 7709        .id("window-backdrop")
 7710        .bg(transparent_black())
 7711        .map(|div| match decorations {
 7712            Decorations::Server => div,
 7713            Decorations::Client { tiling, .. } => div
 7714                .when(!(tiling.top || tiling.right), |div| {
 7715                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7716                })
 7717                .when(!(tiling.top || tiling.left), |div| {
 7718                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7719                })
 7720                .when(!(tiling.bottom || tiling.right), |div| {
 7721                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7722                })
 7723                .when(!(tiling.bottom || tiling.left), |div| {
 7724                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7725                })
 7726                .when(!tiling.top, |div| {
 7727                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7728                })
 7729                .when(!tiling.bottom, |div| {
 7730                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7731                })
 7732                .when(!tiling.left, |div| {
 7733                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7734                })
 7735                .when(!tiling.right, |div| {
 7736                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7737                })
 7738                .on_mouse_move(move |e, window, cx| {
 7739                    let size = window.window_bounds().get_bounds().size;
 7740                    let pos = e.position;
 7741
 7742                    let new_edge =
 7743                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 7744
 7745                    let edge = cx.try_global::<GlobalResizeEdge>();
 7746                    if new_edge != edge.map(|edge| edge.0) {
 7747                        window
 7748                            .window_handle()
 7749                            .update(cx, |workspace, _, cx| {
 7750                                cx.notify(workspace.entity_id());
 7751                            })
 7752                            .ok();
 7753                    }
 7754                })
 7755                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 7756                    let size = window.window_bounds().get_bounds().size;
 7757                    let pos = e.position;
 7758
 7759                    let edge = match resize_edge(
 7760                        pos,
 7761                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 7762                        size,
 7763                        tiling,
 7764                    ) {
 7765                        Some(value) => value,
 7766                        None => return,
 7767                    };
 7768
 7769                    window.start_window_resize(edge);
 7770                }),
 7771        })
 7772        .size_full()
 7773        .child(
 7774            div()
 7775                .cursor(CursorStyle::Arrow)
 7776                .map(|div| match decorations {
 7777                    Decorations::Server => div,
 7778                    Decorations::Client { tiling } => div
 7779                        .border_color(cx.theme().colors().border)
 7780                        .when(!(tiling.top || tiling.right), |div| {
 7781                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7782                        })
 7783                        .when(!(tiling.top || tiling.left), |div| {
 7784                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7785                        })
 7786                        .when(!(tiling.bottom || tiling.right), |div| {
 7787                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7788                        })
 7789                        .when(!(tiling.bottom || tiling.left), |div| {
 7790                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7791                        })
 7792                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 7793                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 7794                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 7795                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 7796                        .when(!tiling.is_tiled(), |div| {
 7797                            div.shadow(vec![gpui::BoxShadow {
 7798                                color: Hsla {
 7799                                    h: 0.,
 7800                                    s: 0.,
 7801                                    l: 0.,
 7802                                    a: 0.4,
 7803                                },
 7804                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 7805                                spread_radius: px(0.),
 7806                                offset: point(px(0.0), px(0.0)),
 7807                            }])
 7808                        }),
 7809                })
 7810                .on_mouse_move(|_e, _, cx| {
 7811                    cx.stop_propagation();
 7812                })
 7813                .size_full()
 7814                .child(element),
 7815        )
 7816        .map(|div| match decorations {
 7817            Decorations::Server => div,
 7818            Decorations::Client { tiling, .. } => div.child(
 7819                canvas(
 7820                    |_bounds, window, _| {
 7821                        window.insert_hitbox(
 7822                            Bounds::new(
 7823                                point(px(0.0), px(0.0)),
 7824                                window.window_bounds().get_bounds().size,
 7825                            ),
 7826                            HitboxBehavior::Normal,
 7827                        )
 7828                    },
 7829                    move |_bounds, hitbox, window, cx| {
 7830                        let mouse = window.mouse_position();
 7831                        let size = window.window_bounds().get_bounds().size;
 7832                        let Some(edge) =
 7833                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 7834                        else {
 7835                            return;
 7836                        };
 7837                        cx.set_global(GlobalResizeEdge(edge));
 7838                        window.set_cursor_style(
 7839                            match edge {
 7840                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 7841                                ResizeEdge::Left | ResizeEdge::Right => {
 7842                                    CursorStyle::ResizeLeftRight
 7843                                }
 7844                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 7845                                    CursorStyle::ResizeUpLeftDownRight
 7846                                }
 7847                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 7848                                    CursorStyle::ResizeUpRightDownLeft
 7849                                }
 7850                            },
 7851                            &hitbox,
 7852                        );
 7853                    },
 7854                )
 7855                .size_full()
 7856                .absolute(),
 7857            ),
 7858        })
 7859}
 7860
 7861fn resize_edge(
 7862    pos: Point<Pixels>,
 7863    shadow_size: Pixels,
 7864    window_size: Size<Pixels>,
 7865    tiling: Tiling,
 7866) -> Option<ResizeEdge> {
 7867    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 7868    if bounds.contains(&pos) {
 7869        return None;
 7870    }
 7871
 7872    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 7873    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 7874    if !tiling.top && top_left_bounds.contains(&pos) {
 7875        return Some(ResizeEdge::TopLeft);
 7876    }
 7877
 7878    let top_right_bounds = Bounds::new(
 7879        Point::new(window_size.width - corner_size.width, px(0.)),
 7880        corner_size,
 7881    );
 7882    if !tiling.top && top_right_bounds.contains(&pos) {
 7883        return Some(ResizeEdge::TopRight);
 7884    }
 7885
 7886    let bottom_left_bounds = Bounds::new(
 7887        Point::new(px(0.), window_size.height - corner_size.height),
 7888        corner_size,
 7889    );
 7890    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 7891        return Some(ResizeEdge::BottomLeft);
 7892    }
 7893
 7894    let bottom_right_bounds = Bounds::new(
 7895        Point::new(
 7896            window_size.width - corner_size.width,
 7897            window_size.height - corner_size.height,
 7898        ),
 7899        corner_size,
 7900    );
 7901    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 7902        return Some(ResizeEdge::BottomRight);
 7903    }
 7904
 7905    if !tiling.top && pos.y < shadow_size {
 7906        Some(ResizeEdge::Top)
 7907    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 7908        Some(ResizeEdge::Bottom)
 7909    } else if !tiling.left && pos.x < shadow_size {
 7910        Some(ResizeEdge::Left)
 7911    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 7912        Some(ResizeEdge::Right)
 7913    } else {
 7914        None
 7915    }
 7916}
 7917
 7918fn join_pane_into_active(
 7919    active_pane: &Entity<Pane>,
 7920    pane: &Entity<Pane>,
 7921    window: &mut Window,
 7922    cx: &mut App,
 7923) {
 7924    if pane == active_pane {
 7925        return;
 7926    } else if pane.read(cx).items_len() == 0 {
 7927        pane.update(cx, |_, cx| {
 7928            cx.emit(pane::Event::Remove {
 7929                focus_on_pane: None,
 7930            });
 7931        })
 7932    } else {
 7933        move_all_items(pane, active_pane, window, cx);
 7934    }
 7935}
 7936
 7937fn move_all_items(
 7938    from_pane: &Entity<Pane>,
 7939    to_pane: &Entity<Pane>,
 7940    window: &mut Window,
 7941    cx: &mut App,
 7942) {
 7943    let destination_is_different = from_pane != to_pane;
 7944    let mut moved_items = 0;
 7945    for (item_ix, item_handle) in from_pane
 7946        .read(cx)
 7947        .items()
 7948        .enumerate()
 7949        .map(|(ix, item)| (ix, item.clone()))
 7950        .collect::<Vec<_>>()
 7951    {
 7952        let ix = item_ix - moved_items;
 7953        if destination_is_different {
 7954            // Close item from previous pane
 7955            from_pane.update(cx, |source, cx| {
 7956                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 7957            });
 7958            moved_items += 1;
 7959        }
 7960
 7961        // This automatically removes duplicate items in the pane
 7962        to_pane.update(cx, |destination, cx| {
 7963            destination.add_item(item_handle, true, true, None, window, cx);
 7964            window.focus(&destination.focus_handle(cx))
 7965        });
 7966    }
 7967}
 7968
 7969pub fn move_item(
 7970    source: &Entity<Pane>,
 7971    destination: &Entity<Pane>,
 7972    item_id_to_move: EntityId,
 7973    destination_index: usize,
 7974    activate: bool,
 7975    window: &mut Window,
 7976    cx: &mut App,
 7977) {
 7978    let Some((item_ix, item_handle)) = source
 7979        .read(cx)
 7980        .items()
 7981        .enumerate()
 7982        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 7983        .map(|(ix, item)| (ix, item.clone()))
 7984    else {
 7985        // Tab was closed during drag
 7986        return;
 7987    };
 7988
 7989    if source != destination {
 7990        // Close item from previous pane
 7991        source.update(cx, |source, cx| {
 7992            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 7993        });
 7994    }
 7995
 7996    // This automatically removes duplicate items in the pane
 7997    destination.update(cx, |destination, cx| {
 7998        destination.add_item_inner(
 7999            item_handle,
 8000            activate,
 8001            activate,
 8002            activate,
 8003            Some(destination_index),
 8004            window,
 8005            cx,
 8006        );
 8007        if activate {
 8008            window.focus(&destination.focus_handle(cx))
 8009        }
 8010    });
 8011}
 8012
 8013pub fn move_active_item(
 8014    source: &Entity<Pane>,
 8015    destination: &Entity<Pane>,
 8016    focus_destination: bool,
 8017    close_if_empty: bool,
 8018    window: &mut Window,
 8019    cx: &mut App,
 8020) {
 8021    if source == destination {
 8022        return;
 8023    }
 8024    let Some(active_item) = source.read(cx).active_item() else {
 8025        return;
 8026    };
 8027    source.update(cx, |source_pane, cx| {
 8028        let item_id = active_item.item_id();
 8029        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8030        destination.update(cx, |target_pane, cx| {
 8031            target_pane.add_item(
 8032                active_item,
 8033                focus_destination,
 8034                focus_destination,
 8035                Some(target_pane.items_len()),
 8036                window,
 8037                cx,
 8038            );
 8039        });
 8040    });
 8041}
 8042
 8043pub fn clone_active_item(
 8044    workspace_id: Option<WorkspaceId>,
 8045    source: &Entity<Pane>,
 8046    destination: &Entity<Pane>,
 8047    focus_destination: bool,
 8048    window: &mut Window,
 8049    cx: &mut App,
 8050) {
 8051    if source == destination {
 8052        return;
 8053    }
 8054    let Some(active_item) = source.read(cx).active_item() else {
 8055        return;
 8056    };
 8057    destination.update(cx, |target_pane, cx| {
 8058        let Some(clone) = active_item.clone_on_split(workspace_id, window, cx) else {
 8059            return;
 8060        };
 8061        target_pane.add_item(
 8062            clone,
 8063            focus_destination,
 8064            focus_destination,
 8065            Some(target_pane.items_len()),
 8066            window,
 8067            cx,
 8068        );
 8069    });
 8070}
 8071
 8072#[derive(Debug)]
 8073pub struct WorkspacePosition {
 8074    pub window_bounds: Option<WindowBounds>,
 8075    pub display: Option<Uuid>,
 8076    pub centered_layout: bool,
 8077}
 8078
 8079pub fn ssh_workspace_position_from_db(
 8080    host: String,
 8081    port: Option<u16>,
 8082    user: Option<String>,
 8083    paths_to_open: &[PathBuf],
 8084    cx: &App,
 8085) -> Task<Result<WorkspacePosition>> {
 8086    let paths = paths_to_open
 8087        .iter()
 8088        .map(|path| path.to_string_lossy().to_string())
 8089        .collect::<Vec<_>>();
 8090
 8091    cx.background_spawn(async move {
 8092        let serialized_ssh_project = persistence::DB
 8093            .get_or_create_ssh_project(host, port, paths, user)
 8094            .await
 8095            .context("fetching serialized ssh project")?;
 8096        let serialized_workspace =
 8097            persistence::DB.workspace_for_ssh_project(&serialized_ssh_project);
 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::<WorkspaceSettings>(cx, |settings| {
 8674                    settings.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::<WorkspaceSettings>(cx, |settings| {
 8694                    settings.autosave = Some(AutosaveSetting::OnFocusChange);
 8695                })
 8696            });
 8697            item.is_dirty = true;
 8698        });
 8699
 8700        // Blurring the item saves the file.
 8701        item.update_in(cx, |_, window, _| window.blur());
 8702        cx.executor().run_until_parked();
 8703        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 8704
 8705        // Deactivating the window still saves the file.
 8706        item.update_in(cx, |item, window, cx| {
 8707            cx.focus_self(window);
 8708            item.is_dirty = true;
 8709        });
 8710        cx.deactivate_window();
 8711        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 8712
 8713        // Autosave after delay.
 8714        item.update(cx, |item, cx| {
 8715            SettingsStore::update_global(cx, |settings, cx| {
 8716                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8717                    settings.autosave = 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 on focus change, ensuring closing the tab counts as such.
 8733        item.update(cx, |item, cx| {
 8734            SettingsStore::update_global(cx, |settings, cx| {
 8735                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8736                    settings.autosave = Some(AutosaveSetting::OnFocusChange);
 8737                })
 8738            });
 8739            item.is_dirty = true;
 8740            for project_item in &mut item.project_items {
 8741                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8742            }
 8743        });
 8744
 8745        pane.update_in(cx, |pane, window, cx| {
 8746            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 8747        })
 8748        .await
 8749        .unwrap();
 8750        assert!(!cx.has_pending_prompt());
 8751        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8752
 8753        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 8754        workspace.update_in(cx, |workspace, window, cx| {
 8755            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8756        });
 8757        item.update_in(cx, |item, window, cx| {
 8758            item.project_items[0].update(cx, |item, _| {
 8759                item.entry_id = None;
 8760            });
 8761            item.is_dirty = true;
 8762            window.blur();
 8763        });
 8764        cx.run_until_parked();
 8765        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8766
 8767        // Ensure autosave is prevented for deleted files also when closing the buffer.
 8768        let _close_items = pane.update_in(cx, |pane, window, cx| {
 8769            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 8770        });
 8771        cx.run_until_parked();
 8772        assert!(cx.has_pending_prompt());
 8773        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8774    }
 8775
 8776    #[gpui::test]
 8777    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 8778        init_test(cx);
 8779
 8780        let fs = FakeFs::new(cx.executor());
 8781
 8782        let project = Project::test(fs, [], cx).await;
 8783        let (workspace, cx) =
 8784            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8785
 8786        let item = cx.new(|cx| {
 8787            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8788        });
 8789        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8790        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 8791        let toolbar_notify_count = Rc::new(RefCell::new(0));
 8792
 8793        workspace.update_in(cx, |workspace, window, cx| {
 8794            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8795            let toolbar_notification_count = toolbar_notify_count.clone();
 8796            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 8797                *toolbar_notification_count.borrow_mut() += 1
 8798            })
 8799            .detach();
 8800        });
 8801
 8802        pane.read_with(cx, |pane, _| {
 8803            assert!(!pane.can_navigate_backward());
 8804            assert!(!pane.can_navigate_forward());
 8805        });
 8806
 8807        item.update_in(cx, |item, _, cx| {
 8808            item.set_state("one".to_string(), cx);
 8809        });
 8810
 8811        // Toolbar must be notified to re-render the navigation buttons
 8812        assert_eq!(*toolbar_notify_count.borrow(), 1);
 8813
 8814        pane.read_with(cx, |pane, _| {
 8815            assert!(pane.can_navigate_backward());
 8816            assert!(!pane.can_navigate_forward());
 8817        });
 8818
 8819        workspace
 8820            .update_in(cx, |workspace, window, cx| {
 8821                workspace.go_back(pane.downgrade(), window, cx)
 8822            })
 8823            .await
 8824            .unwrap();
 8825
 8826        assert_eq!(*toolbar_notify_count.borrow(), 2);
 8827        pane.read_with(cx, |pane, _| {
 8828            assert!(!pane.can_navigate_backward());
 8829            assert!(pane.can_navigate_forward());
 8830        });
 8831    }
 8832
 8833    #[gpui::test]
 8834    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 8835        init_test(cx);
 8836        let fs = FakeFs::new(cx.executor());
 8837
 8838        let project = Project::test(fs, [], cx).await;
 8839        let (workspace, cx) =
 8840            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8841
 8842        let panel = workspace.update_in(cx, |workspace, window, cx| {
 8843            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 8844            workspace.add_panel(panel.clone(), window, cx);
 8845
 8846            workspace
 8847                .right_dock()
 8848                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 8849
 8850            panel
 8851        });
 8852
 8853        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8854        pane.update_in(cx, |pane, window, cx| {
 8855            let item = cx.new(TestItem::new);
 8856            pane.add_item(Box::new(item), true, true, None, window, cx);
 8857        });
 8858
 8859        // Transfer focus from center to panel
 8860        workspace.update_in(cx, |workspace, window, cx| {
 8861            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8862        });
 8863
 8864        workspace.update_in(cx, |workspace, window, cx| {
 8865            assert!(workspace.right_dock().read(cx).is_open());
 8866            assert!(!panel.is_zoomed(window, cx));
 8867            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8868        });
 8869
 8870        // Transfer focus from panel to center
 8871        workspace.update_in(cx, |workspace, window, cx| {
 8872            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8873        });
 8874
 8875        workspace.update_in(cx, |workspace, window, cx| {
 8876            assert!(workspace.right_dock().read(cx).is_open());
 8877            assert!(!panel.is_zoomed(window, cx));
 8878            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8879        });
 8880
 8881        // Close the dock
 8882        workspace.update_in(cx, |workspace, window, cx| {
 8883            workspace.toggle_dock(DockPosition::Right, window, cx);
 8884        });
 8885
 8886        workspace.update_in(cx, |workspace, window, cx| {
 8887            assert!(!workspace.right_dock().read(cx).is_open());
 8888            assert!(!panel.is_zoomed(window, cx));
 8889            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8890        });
 8891
 8892        // Open the dock
 8893        workspace.update_in(cx, |workspace, window, cx| {
 8894            workspace.toggle_dock(DockPosition::Right, window, cx);
 8895        });
 8896
 8897        workspace.update_in(cx, |workspace, window, cx| {
 8898            assert!(workspace.right_dock().read(cx).is_open());
 8899            assert!(!panel.is_zoomed(window, cx));
 8900            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8901        });
 8902
 8903        // Focus and zoom panel
 8904        panel.update_in(cx, |panel, window, cx| {
 8905            cx.focus_self(window);
 8906            panel.set_zoomed(true, window, cx)
 8907        });
 8908
 8909        workspace.update_in(cx, |workspace, window, cx| {
 8910            assert!(workspace.right_dock().read(cx).is_open());
 8911            assert!(panel.is_zoomed(window, cx));
 8912            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8913        });
 8914
 8915        // Transfer focus to the center closes the dock
 8916        workspace.update_in(cx, |workspace, window, cx| {
 8917            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8918        });
 8919
 8920        workspace.update_in(cx, |workspace, window, cx| {
 8921            assert!(!workspace.right_dock().read(cx).is_open());
 8922            assert!(panel.is_zoomed(window, cx));
 8923            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8924        });
 8925
 8926        // Transferring focus back to the panel keeps it zoomed
 8927        workspace.update_in(cx, |workspace, window, cx| {
 8928            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8929        });
 8930
 8931        workspace.update_in(cx, |workspace, window, cx| {
 8932            assert!(workspace.right_dock().read(cx).is_open());
 8933            assert!(panel.is_zoomed(window, cx));
 8934            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8935        });
 8936
 8937        // Close the dock while it is zoomed
 8938        workspace.update_in(cx, |workspace, window, cx| {
 8939            workspace.toggle_dock(DockPosition::Right, window, cx)
 8940        });
 8941
 8942        workspace.update_in(cx, |workspace, window, cx| {
 8943            assert!(!workspace.right_dock().read(cx).is_open());
 8944            assert!(panel.is_zoomed(window, cx));
 8945            assert!(workspace.zoomed.is_none());
 8946            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8947        });
 8948
 8949        // Opening the dock, when it's zoomed, retains focus
 8950        workspace.update_in(cx, |workspace, window, cx| {
 8951            workspace.toggle_dock(DockPosition::Right, window, cx)
 8952        });
 8953
 8954        workspace.update_in(cx, |workspace, window, cx| {
 8955            assert!(workspace.right_dock().read(cx).is_open());
 8956            assert!(panel.is_zoomed(window, cx));
 8957            assert!(workspace.zoomed.is_some());
 8958            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8959        });
 8960
 8961        // Unzoom and close the panel, zoom the active pane.
 8962        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 8963        workspace.update_in(cx, |workspace, window, cx| {
 8964            workspace.toggle_dock(DockPosition::Right, window, cx)
 8965        });
 8966        pane.update_in(cx, |pane, window, cx| {
 8967            pane.toggle_zoom(&Default::default(), window, cx)
 8968        });
 8969
 8970        // Opening a dock unzooms the pane.
 8971        workspace.update_in(cx, |workspace, window, cx| {
 8972            workspace.toggle_dock(DockPosition::Right, window, cx)
 8973        });
 8974        workspace.update_in(cx, |workspace, window, cx| {
 8975            let pane = pane.read(cx);
 8976            assert!(!pane.is_zoomed());
 8977            assert!(!pane.focus_handle(cx).is_focused(window));
 8978            assert!(workspace.right_dock().read(cx).is_open());
 8979            assert!(workspace.zoomed.is_none());
 8980        });
 8981    }
 8982
 8983    #[gpui::test]
 8984    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
 8985        init_test(cx);
 8986
 8987        let fs = FakeFs::new(cx.executor());
 8988
 8989        let project = Project::test(fs, None, cx).await;
 8990        let (workspace, cx) =
 8991            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8992
 8993        // Let's arrange the panes like this:
 8994        //
 8995        // +-----------------------+
 8996        // |         top           |
 8997        // +------+--------+-------+
 8998        // | left | center | right |
 8999        // +------+--------+-------+
 9000        // |        bottom         |
 9001        // +-----------------------+
 9002
 9003        let top_item = cx.new(|cx| {
 9004            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
 9005        });
 9006        let bottom_item = cx.new(|cx| {
 9007            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
 9008        });
 9009        let left_item = cx.new(|cx| {
 9010            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
 9011        });
 9012        let right_item = cx.new(|cx| {
 9013            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
 9014        });
 9015        let center_item = cx.new(|cx| {
 9016            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
 9017        });
 9018
 9019        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9020            let top_pane_id = workspace.active_pane().entity_id();
 9021            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
 9022            workspace.split_pane(
 9023                workspace.active_pane().clone(),
 9024                SplitDirection::Down,
 9025                window,
 9026                cx,
 9027            );
 9028            top_pane_id
 9029        });
 9030        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9031            let bottom_pane_id = workspace.active_pane().entity_id();
 9032            workspace.add_item_to_active_pane(
 9033                Box::new(bottom_item.clone()),
 9034                None,
 9035                false,
 9036                window,
 9037                cx,
 9038            );
 9039            workspace.split_pane(
 9040                workspace.active_pane().clone(),
 9041                SplitDirection::Up,
 9042                window,
 9043                cx,
 9044            );
 9045            bottom_pane_id
 9046        });
 9047        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9048            let left_pane_id = workspace.active_pane().entity_id();
 9049            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
 9050            workspace.split_pane(
 9051                workspace.active_pane().clone(),
 9052                SplitDirection::Right,
 9053                window,
 9054                cx,
 9055            );
 9056            left_pane_id
 9057        });
 9058        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9059            let right_pane_id = workspace.active_pane().entity_id();
 9060            workspace.add_item_to_active_pane(
 9061                Box::new(right_item.clone()),
 9062                None,
 9063                false,
 9064                window,
 9065                cx,
 9066            );
 9067            workspace.split_pane(
 9068                workspace.active_pane().clone(),
 9069                SplitDirection::Left,
 9070                window,
 9071                cx,
 9072            );
 9073            right_pane_id
 9074        });
 9075        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9076            let center_pane_id = workspace.active_pane().entity_id();
 9077            workspace.add_item_to_active_pane(
 9078                Box::new(center_item.clone()),
 9079                None,
 9080                false,
 9081                window,
 9082                cx,
 9083            );
 9084            center_pane_id
 9085        });
 9086        cx.executor().run_until_parked();
 9087
 9088        workspace.update_in(cx, |workspace, window, cx| {
 9089            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
 9090
 9091            // Join into next from center pane into right
 9092            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9093        });
 9094
 9095        workspace.update_in(cx, |workspace, window, cx| {
 9096            let active_pane = workspace.active_pane();
 9097            assert_eq!(right_pane_id, active_pane.entity_id());
 9098            assert_eq!(2, active_pane.read(cx).items_len());
 9099            let item_ids_in_pane =
 9100                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9101            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9102            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9103
 9104            // Join into next from right pane into bottom
 9105            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9106        });
 9107
 9108        workspace.update_in(cx, |workspace, window, cx| {
 9109            let active_pane = workspace.active_pane();
 9110            assert_eq!(bottom_pane_id, active_pane.entity_id());
 9111            assert_eq!(3, active_pane.read(cx).items_len());
 9112            let item_ids_in_pane =
 9113                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9114            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9115            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9116            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9117
 9118            // Join into next from bottom pane into left
 9119            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9120        });
 9121
 9122        workspace.update_in(cx, |workspace, window, cx| {
 9123            let active_pane = workspace.active_pane();
 9124            assert_eq!(left_pane_id, active_pane.entity_id());
 9125            assert_eq!(4, active_pane.read(cx).items_len());
 9126            let item_ids_in_pane =
 9127                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9128            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9129            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9130            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9131            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9132
 9133            // Join into next from left pane into top
 9134            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9135        });
 9136
 9137        workspace.update_in(cx, |workspace, window, cx| {
 9138            let active_pane = workspace.active_pane();
 9139            assert_eq!(top_pane_id, active_pane.entity_id());
 9140            assert_eq!(5, active_pane.read(cx).items_len());
 9141            let item_ids_in_pane =
 9142                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9143            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9144            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9145            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9146            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9147            assert!(item_ids_in_pane.contains(&top_item.item_id()));
 9148
 9149            // Single pane left: no-op
 9150            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
 9151        });
 9152
 9153        workspace.update(cx, |workspace, _cx| {
 9154            let active_pane = workspace.active_pane();
 9155            assert_eq!(top_pane_id, active_pane.entity_id());
 9156        });
 9157    }
 9158
 9159    fn add_an_item_to_active_pane(
 9160        cx: &mut VisualTestContext,
 9161        workspace: &Entity<Workspace>,
 9162        item_id: u64,
 9163    ) -> Entity<TestItem> {
 9164        let item = cx.new(|cx| {
 9165            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
 9166                item_id,
 9167                "item{item_id}.txt",
 9168                cx,
 9169            )])
 9170        });
 9171        workspace.update_in(cx, |workspace, window, cx| {
 9172            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
 9173        });
 9174        return item;
 9175    }
 9176
 9177    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
 9178        return workspace.update_in(cx, |workspace, window, cx| {
 9179            let new_pane = workspace.split_pane(
 9180                workspace.active_pane().clone(),
 9181                SplitDirection::Right,
 9182                window,
 9183                cx,
 9184            );
 9185            new_pane
 9186        });
 9187    }
 9188
 9189    #[gpui::test]
 9190    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
 9191        init_test(cx);
 9192        let fs = FakeFs::new(cx.executor());
 9193        let project = Project::test(fs, None, cx).await;
 9194        let (workspace, cx) =
 9195            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9196
 9197        add_an_item_to_active_pane(cx, &workspace, 1);
 9198        split_pane(cx, &workspace);
 9199        add_an_item_to_active_pane(cx, &workspace, 2);
 9200        split_pane(cx, &workspace); // empty pane
 9201        split_pane(cx, &workspace);
 9202        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
 9203
 9204        cx.executor().run_until_parked();
 9205
 9206        workspace.update(cx, |workspace, cx| {
 9207            let num_panes = workspace.panes().len();
 9208            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9209            let active_item = workspace
 9210                .active_pane()
 9211                .read(cx)
 9212                .active_item()
 9213                .expect("item is in focus");
 9214
 9215            assert_eq!(num_panes, 4);
 9216            assert_eq!(num_items_in_current_pane, 1);
 9217            assert_eq!(active_item.item_id(), last_item.item_id());
 9218        });
 9219
 9220        workspace.update_in(cx, |workspace, window, cx| {
 9221            workspace.join_all_panes(window, cx);
 9222        });
 9223
 9224        workspace.update(cx, |workspace, cx| {
 9225            let num_panes = workspace.panes().len();
 9226            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9227            let active_item = workspace
 9228                .active_pane()
 9229                .read(cx)
 9230                .active_item()
 9231                .expect("item is in focus");
 9232
 9233            assert_eq!(num_panes, 1);
 9234            assert_eq!(num_items_in_current_pane, 3);
 9235            assert_eq!(active_item.item_id(), last_item.item_id());
 9236        });
 9237    }
 9238    struct TestModal(FocusHandle);
 9239
 9240    impl TestModal {
 9241        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
 9242            Self(cx.focus_handle())
 9243        }
 9244    }
 9245
 9246    impl EventEmitter<DismissEvent> for TestModal {}
 9247
 9248    impl Focusable for TestModal {
 9249        fn focus_handle(&self, _cx: &App) -> FocusHandle {
 9250            self.0.clone()
 9251        }
 9252    }
 9253
 9254    impl ModalView for TestModal {}
 9255
 9256    impl Render for TestModal {
 9257        fn render(
 9258            &mut self,
 9259            _window: &mut Window,
 9260            _cx: &mut Context<TestModal>,
 9261        ) -> impl IntoElement {
 9262            div().track_focus(&self.0)
 9263        }
 9264    }
 9265
 9266    #[gpui::test]
 9267    async fn test_panels(cx: &mut gpui::TestAppContext) {
 9268        init_test(cx);
 9269        let fs = FakeFs::new(cx.executor());
 9270
 9271        let project = Project::test(fs, [], cx).await;
 9272        let (workspace, cx) =
 9273            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9274
 9275        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
 9276            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, cx));
 9277            workspace.add_panel(panel_1.clone(), window, cx);
 9278            workspace.toggle_dock(DockPosition::Left, window, cx);
 9279            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 9280            workspace.add_panel(panel_2.clone(), window, cx);
 9281            workspace.toggle_dock(DockPosition::Right, window, cx);
 9282
 9283            let left_dock = workspace.left_dock();
 9284            assert_eq!(
 9285                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9286                panel_1.panel_id()
 9287            );
 9288            assert_eq!(
 9289                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9290                panel_1.size(window, cx)
 9291            );
 9292
 9293            left_dock.update(cx, |left_dock, cx| {
 9294                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
 9295            });
 9296            assert_eq!(
 9297                workspace
 9298                    .right_dock()
 9299                    .read(cx)
 9300                    .visible_panel()
 9301                    .unwrap()
 9302                    .panel_id(),
 9303                panel_2.panel_id(),
 9304            );
 9305
 9306            (panel_1, panel_2)
 9307        });
 9308
 9309        // Move panel_1 to the right
 9310        panel_1.update_in(cx, |panel_1, window, cx| {
 9311            panel_1.set_position(DockPosition::Right, window, cx)
 9312        });
 9313
 9314        workspace.update_in(cx, |workspace, window, cx| {
 9315            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
 9316            // Since it was the only panel on the left, the left dock should now be closed.
 9317            assert!(!workspace.left_dock().read(cx).is_open());
 9318            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
 9319            let right_dock = workspace.right_dock();
 9320            assert_eq!(
 9321                right_dock.read(cx).visible_panel().unwrap().panel_id(),
 9322                panel_1.panel_id()
 9323            );
 9324            assert_eq!(
 9325                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9326                px(1337.)
 9327            );
 9328
 9329            // Now we move panel_2 to the left
 9330            panel_2.set_position(DockPosition::Left, window, cx);
 9331        });
 9332
 9333        workspace.update(cx, |workspace, cx| {
 9334            // Since panel_2 was not visible on the right, we don't open the left dock.
 9335            assert!(!workspace.left_dock().read(cx).is_open());
 9336            // And the right dock is unaffected in its displaying of panel_1
 9337            assert!(workspace.right_dock().read(cx).is_open());
 9338            assert_eq!(
 9339                workspace
 9340                    .right_dock()
 9341                    .read(cx)
 9342                    .visible_panel()
 9343                    .unwrap()
 9344                    .panel_id(),
 9345                panel_1.panel_id(),
 9346            );
 9347        });
 9348
 9349        // Move panel_1 back to the left
 9350        panel_1.update_in(cx, |panel_1, window, cx| {
 9351            panel_1.set_position(DockPosition::Left, window, cx)
 9352        });
 9353
 9354        workspace.update_in(cx, |workspace, window, cx| {
 9355            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
 9356            let left_dock = workspace.left_dock();
 9357            assert!(left_dock.read(cx).is_open());
 9358            assert_eq!(
 9359                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9360                panel_1.panel_id()
 9361            );
 9362            assert_eq!(
 9363                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9364                px(1337.)
 9365            );
 9366            // And the right dock should be closed as it no longer has any panels.
 9367            assert!(!workspace.right_dock().read(cx).is_open());
 9368
 9369            // Now we move panel_1 to the bottom
 9370            panel_1.set_position(DockPosition::Bottom, window, cx);
 9371        });
 9372
 9373        workspace.update_in(cx, |workspace, window, cx| {
 9374            // Since panel_1 was visible on the left, we close the left dock.
 9375            assert!(!workspace.left_dock().read(cx).is_open());
 9376            // The bottom dock is sized based on the panel's default size,
 9377            // since the panel orientation changed from vertical to horizontal.
 9378            let bottom_dock = workspace.bottom_dock();
 9379            assert_eq!(
 9380                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9381                panel_1.size(window, cx),
 9382            );
 9383            // Close bottom dock and move panel_1 back to the left.
 9384            bottom_dock.update(cx, |bottom_dock, cx| {
 9385                bottom_dock.set_open(false, window, cx)
 9386            });
 9387            panel_1.set_position(DockPosition::Left, window, cx);
 9388        });
 9389
 9390        // Emit activated event on panel 1
 9391        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
 9392
 9393        // Now the left dock is open and panel_1 is active and focused.
 9394        workspace.update_in(cx, |workspace, window, cx| {
 9395            let left_dock = workspace.left_dock();
 9396            assert!(left_dock.read(cx).is_open());
 9397            assert_eq!(
 9398                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9399                panel_1.panel_id(),
 9400            );
 9401            assert!(panel_1.focus_handle(cx).is_focused(window));
 9402        });
 9403
 9404        // Emit closed event on panel 2, which is not active
 9405        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 9406
 9407        // Wo don't close the left dock, because panel_2 wasn't the active panel
 9408        workspace.update(cx, |workspace, cx| {
 9409            let left_dock = workspace.left_dock();
 9410            assert!(left_dock.read(cx).is_open());
 9411            assert_eq!(
 9412                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9413                panel_1.panel_id(),
 9414            );
 9415        });
 9416
 9417        // Emitting a ZoomIn event shows the panel as zoomed.
 9418        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
 9419        workspace.read_with(cx, |workspace, _| {
 9420            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9421            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
 9422        });
 9423
 9424        // Move panel to another dock while it is zoomed
 9425        panel_1.update_in(cx, |panel, window, cx| {
 9426            panel.set_position(DockPosition::Right, window, cx)
 9427        });
 9428        workspace.read_with(cx, |workspace, _| {
 9429            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9430
 9431            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9432        });
 9433
 9434        // This is a helper for getting a:
 9435        // - valid focus on an element,
 9436        // - that isn't a part of the panes and panels system of the Workspace,
 9437        // - and doesn't trigger the 'on_focus_lost' API.
 9438        let focus_other_view = {
 9439            let workspace = workspace.clone();
 9440            move |cx: &mut VisualTestContext| {
 9441                workspace.update_in(cx, |workspace, window, cx| {
 9442                    if let Some(_) = workspace.active_modal::<TestModal>(cx) {
 9443                        workspace.toggle_modal(window, cx, TestModal::new);
 9444                        workspace.toggle_modal(window, cx, TestModal::new);
 9445                    } else {
 9446                        workspace.toggle_modal(window, cx, TestModal::new);
 9447                    }
 9448                })
 9449            }
 9450        };
 9451
 9452        // If focus is transferred to another view that's not a panel or another pane, we still show
 9453        // the panel as zoomed.
 9454        focus_other_view(cx);
 9455        workspace.read_with(cx, |workspace, _| {
 9456            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9457            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9458        });
 9459
 9460        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
 9461        workspace.update_in(cx, |_workspace, window, cx| {
 9462            cx.focus_self(window);
 9463        });
 9464        workspace.read_with(cx, |workspace, _| {
 9465            assert_eq!(workspace.zoomed, None);
 9466            assert_eq!(workspace.zoomed_position, None);
 9467        });
 9468
 9469        // If focus is transferred again to another view that's not a panel or a pane, we won't
 9470        // show the panel as zoomed because it wasn't zoomed before.
 9471        focus_other_view(cx);
 9472        workspace.read_with(cx, |workspace, _| {
 9473            assert_eq!(workspace.zoomed, None);
 9474            assert_eq!(workspace.zoomed_position, None);
 9475        });
 9476
 9477        // When the panel is activated, it is zoomed again.
 9478        cx.dispatch_action(ToggleRightDock);
 9479        workspace.read_with(cx, |workspace, _| {
 9480            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9481            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9482        });
 9483
 9484        // Emitting a ZoomOut event unzooms the panel.
 9485        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
 9486        workspace.read_with(cx, |workspace, _| {
 9487            assert_eq!(workspace.zoomed, None);
 9488            assert_eq!(workspace.zoomed_position, None);
 9489        });
 9490
 9491        // Emit closed event on panel 1, which is active
 9492        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 9493
 9494        // Now the left dock is closed, because panel_1 was the active panel
 9495        workspace.update(cx, |workspace, cx| {
 9496            let right_dock = workspace.right_dock();
 9497            assert!(!right_dock.read(cx).is_open());
 9498        });
 9499    }
 9500
 9501    #[gpui::test]
 9502    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
 9503        init_test(cx);
 9504
 9505        let fs = FakeFs::new(cx.background_executor.clone());
 9506        let project = Project::test(fs, [], cx).await;
 9507        let (workspace, cx) =
 9508            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9509        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9510
 9511        let dirty_regular_buffer = cx.new(|cx| {
 9512            TestItem::new(cx)
 9513                .with_dirty(true)
 9514                .with_label("1.txt")
 9515                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9516        });
 9517        let dirty_regular_buffer_2 = cx.new(|cx| {
 9518            TestItem::new(cx)
 9519                .with_dirty(true)
 9520                .with_label("2.txt")
 9521                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9522        });
 9523        let dirty_multi_buffer_with_both = cx.new(|cx| {
 9524            TestItem::new(cx)
 9525                .with_dirty(true)
 9526                .with_singleton(false)
 9527                .with_label("Fake Project Search")
 9528                .with_project_items(&[
 9529                    dirty_regular_buffer.read(cx).project_items[0].clone(),
 9530                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
 9531                ])
 9532        });
 9533        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
 9534        workspace.update_in(cx, |workspace, window, cx| {
 9535            workspace.add_item(
 9536                pane.clone(),
 9537                Box::new(dirty_regular_buffer.clone()),
 9538                None,
 9539                false,
 9540                false,
 9541                window,
 9542                cx,
 9543            );
 9544            workspace.add_item(
 9545                pane.clone(),
 9546                Box::new(dirty_regular_buffer_2.clone()),
 9547                None,
 9548                false,
 9549                false,
 9550                window,
 9551                cx,
 9552            );
 9553            workspace.add_item(
 9554                pane.clone(),
 9555                Box::new(dirty_multi_buffer_with_both.clone()),
 9556                None,
 9557                false,
 9558                false,
 9559                window,
 9560                cx,
 9561            );
 9562        });
 9563
 9564        pane.update_in(cx, |pane, window, cx| {
 9565            pane.activate_item(2, true, true, window, cx);
 9566            assert_eq!(
 9567                pane.active_item().unwrap().item_id(),
 9568                multi_buffer_with_both_files_id,
 9569                "Should select the multi buffer in the pane"
 9570            );
 9571        });
 9572        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9573            pane.close_other_items(
 9574                &CloseOtherItems {
 9575                    save_intent: Some(SaveIntent::Save),
 9576                    close_pinned: true,
 9577                },
 9578                None,
 9579                window,
 9580                cx,
 9581            )
 9582        });
 9583        cx.background_executor.run_until_parked();
 9584        assert!(!cx.has_pending_prompt());
 9585        close_all_but_multi_buffer_task
 9586            .await
 9587            .expect("Closing all buffers but the multi buffer failed");
 9588        pane.update(cx, |pane, cx| {
 9589            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
 9590            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
 9591            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
 9592            assert_eq!(pane.items_len(), 1);
 9593            assert_eq!(
 9594                pane.active_item().unwrap().item_id(),
 9595                multi_buffer_with_both_files_id,
 9596                "Should have only the multi buffer left in the pane"
 9597            );
 9598            assert!(
 9599                dirty_multi_buffer_with_both.read(cx).is_dirty,
 9600                "The multi buffer containing the unsaved buffer should still be dirty"
 9601            );
 9602        });
 9603
 9604        dirty_regular_buffer.update(cx, |buffer, cx| {
 9605            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
 9606        });
 9607
 9608        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9609            pane.close_active_item(
 9610                &CloseActiveItem {
 9611                    save_intent: Some(SaveIntent::Close),
 9612                    close_pinned: false,
 9613                },
 9614                window,
 9615                cx,
 9616            )
 9617        });
 9618        cx.background_executor.run_until_parked();
 9619        assert!(
 9620            cx.has_pending_prompt(),
 9621            "Dirty multi buffer should prompt a save dialog"
 9622        );
 9623        cx.simulate_prompt_answer("Save");
 9624        cx.background_executor.run_until_parked();
 9625        close_multi_buffer_task
 9626            .await
 9627            .expect("Closing the multi buffer failed");
 9628        pane.update(cx, |pane, cx| {
 9629            assert_eq!(
 9630                dirty_multi_buffer_with_both.read(cx).save_count,
 9631                1,
 9632                "Multi buffer item should get be saved"
 9633            );
 9634            // Test impl does not save inner items, so we do not assert them
 9635            assert_eq!(
 9636                pane.items_len(),
 9637                0,
 9638                "No more items should be left in the pane"
 9639            );
 9640            assert!(pane.active_item().is_none());
 9641        });
 9642    }
 9643
 9644    #[gpui::test]
 9645    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
 9646        cx: &mut TestAppContext,
 9647    ) {
 9648        init_test(cx);
 9649
 9650        let fs = FakeFs::new(cx.background_executor.clone());
 9651        let project = Project::test(fs, [], cx).await;
 9652        let (workspace, cx) =
 9653            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9654        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9655
 9656        let dirty_regular_buffer = cx.new(|cx| {
 9657            TestItem::new(cx)
 9658                .with_dirty(true)
 9659                .with_label("1.txt")
 9660                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9661        });
 9662        let dirty_regular_buffer_2 = cx.new(|cx| {
 9663            TestItem::new(cx)
 9664                .with_dirty(true)
 9665                .with_label("2.txt")
 9666                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9667        });
 9668        let clear_regular_buffer = cx.new(|cx| {
 9669            TestItem::new(cx)
 9670                .with_label("3.txt")
 9671                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
 9672        });
 9673
 9674        let dirty_multi_buffer_with_both = cx.new(|cx| {
 9675            TestItem::new(cx)
 9676                .with_dirty(true)
 9677                .with_singleton(false)
 9678                .with_label("Fake Project Search")
 9679                .with_project_items(&[
 9680                    dirty_regular_buffer.read(cx).project_items[0].clone(),
 9681                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
 9682                    clear_regular_buffer.read(cx).project_items[0].clone(),
 9683                ])
 9684        });
 9685        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
 9686        workspace.update_in(cx, |workspace, window, cx| {
 9687            workspace.add_item(
 9688                pane.clone(),
 9689                Box::new(dirty_regular_buffer.clone()),
 9690                None,
 9691                false,
 9692                false,
 9693                window,
 9694                cx,
 9695            );
 9696            workspace.add_item(
 9697                pane.clone(),
 9698                Box::new(dirty_multi_buffer_with_both.clone()),
 9699                None,
 9700                false,
 9701                false,
 9702                window,
 9703                cx,
 9704            );
 9705        });
 9706
 9707        pane.update_in(cx, |pane, window, cx| {
 9708            pane.activate_item(1, true, true, window, cx);
 9709            assert_eq!(
 9710                pane.active_item().unwrap().item_id(),
 9711                multi_buffer_with_both_files_id,
 9712                "Should select the multi buffer in the pane"
 9713            );
 9714        });
 9715        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9716            pane.close_active_item(
 9717                &CloseActiveItem {
 9718                    save_intent: None,
 9719                    close_pinned: false,
 9720                },
 9721                window,
 9722                cx,
 9723            )
 9724        });
 9725        cx.background_executor.run_until_parked();
 9726        assert!(
 9727            cx.has_pending_prompt(),
 9728            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
 9729        );
 9730    }
 9731
 9732    /// Tests that when `close_on_file_delete` is enabled, files are automatically
 9733    /// closed when they are deleted from disk.
 9734    #[gpui::test]
 9735    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
 9736        init_test(cx);
 9737
 9738        // Enable the close_on_disk_deletion setting
 9739        cx.update_global(|store: &mut SettingsStore, cx| {
 9740            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9741                settings.close_on_file_delete = Some(true);
 9742            });
 9743        });
 9744
 9745        let fs = FakeFs::new(cx.background_executor.clone());
 9746        let project = Project::test(fs, [], cx).await;
 9747        let (workspace, cx) =
 9748            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9749        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9750
 9751        // Create a test item that simulates a file
 9752        let item = cx.new(|cx| {
 9753            TestItem::new(cx)
 9754                .with_label("test.txt")
 9755                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9756        });
 9757
 9758        // Add item to workspace
 9759        workspace.update_in(cx, |workspace, window, cx| {
 9760            workspace.add_item(
 9761                pane.clone(),
 9762                Box::new(item.clone()),
 9763                None,
 9764                false,
 9765                false,
 9766                window,
 9767                cx,
 9768            );
 9769        });
 9770
 9771        // Verify the item is in the pane
 9772        pane.read_with(cx, |pane, _| {
 9773            assert_eq!(pane.items().count(), 1);
 9774        });
 9775
 9776        // Simulate file deletion by setting the item's deleted state
 9777        item.update(cx, |item, _| {
 9778            item.set_has_deleted_file(true);
 9779        });
 9780
 9781        // Emit UpdateTab event to trigger the close behavior
 9782        cx.run_until_parked();
 9783        item.update(cx, |_, cx| {
 9784            cx.emit(ItemEvent::UpdateTab);
 9785        });
 9786
 9787        // Allow the close operation to complete
 9788        cx.run_until_parked();
 9789
 9790        // Verify the item was automatically closed
 9791        pane.read_with(cx, |pane, _| {
 9792            assert_eq!(
 9793                pane.items().count(),
 9794                0,
 9795                "Item should be automatically closed when file is deleted"
 9796            );
 9797        });
 9798    }
 9799
 9800    /// Tests that when `close_on_file_delete` is disabled (default), files remain
 9801    /// open with a strikethrough when they are deleted from disk.
 9802    #[gpui::test]
 9803    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
 9804        init_test(cx);
 9805
 9806        // Ensure close_on_disk_deletion is disabled (default)
 9807        cx.update_global(|store: &mut SettingsStore, cx| {
 9808            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9809                settings.close_on_file_delete = Some(false);
 9810            });
 9811        });
 9812
 9813        let fs = FakeFs::new(cx.background_executor.clone());
 9814        let project = Project::test(fs, [], cx).await;
 9815        let (workspace, cx) =
 9816            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9817        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9818
 9819        // Create a test item that simulates a file
 9820        let item = cx.new(|cx| {
 9821            TestItem::new(cx)
 9822                .with_label("test.txt")
 9823                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9824        });
 9825
 9826        // Add item to workspace
 9827        workspace.update_in(cx, |workspace, window, cx| {
 9828            workspace.add_item(
 9829                pane.clone(),
 9830                Box::new(item.clone()),
 9831                None,
 9832                false,
 9833                false,
 9834                window,
 9835                cx,
 9836            );
 9837        });
 9838
 9839        // Verify the item is in the pane
 9840        pane.read_with(cx, |pane, _| {
 9841            assert_eq!(pane.items().count(), 1);
 9842        });
 9843
 9844        // Simulate file deletion
 9845        item.update(cx, |item, _| {
 9846            item.set_has_deleted_file(true);
 9847        });
 9848
 9849        // Emit UpdateTab event
 9850        cx.run_until_parked();
 9851        item.update(cx, |_, cx| {
 9852            cx.emit(ItemEvent::UpdateTab);
 9853        });
 9854
 9855        // Allow any potential close operation to complete
 9856        cx.run_until_parked();
 9857
 9858        // Verify the item remains open (with strikethrough)
 9859        pane.read_with(cx, |pane, _| {
 9860            assert_eq!(
 9861                pane.items().count(),
 9862                1,
 9863                "Item should remain open when close_on_disk_deletion is disabled"
 9864            );
 9865        });
 9866
 9867        // Verify the item shows as deleted
 9868        item.read_with(cx, |item, _| {
 9869            assert!(
 9870                item.has_deleted_file,
 9871                "Item should be marked as having deleted file"
 9872            );
 9873        });
 9874    }
 9875
 9876    /// Tests that dirty files are not automatically closed when deleted from disk,
 9877    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
 9878    /// unsaved changes without being prompted.
 9879    #[gpui::test]
 9880    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
 9881        init_test(cx);
 9882
 9883        // Enable the close_on_file_delete setting
 9884        cx.update_global(|store: &mut SettingsStore, cx| {
 9885            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9886                settings.close_on_file_delete = Some(true);
 9887            });
 9888        });
 9889
 9890        let fs = FakeFs::new(cx.background_executor.clone());
 9891        let project = Project::test(fs, [], cx).await;
 9892        let (workspace, cx) =
 9893            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9894        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9895
 9896        // Create a dirty test item
 9897        let item = cx.new(|cx| {
 9898            TestItem::new(cx)
 9899                .with_dirty(true)
 9900                .with_label("test.txt")
 9901                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9902        });
 9903
 9904        // Add item to workspace
 9905        workspace.update_in(cx, |workspace, window, cx| {
 9906            workspace.add_item(
 9907                pane.clone(),
 9908                Box::new(item.clone()),
 9909                None,
 9910                false,
 9911                false,
 9912                window,
 9913                cx,
 9914            );
 9915        });
 9916
 9917        // Simulate file deletion
 9918        item.update(cx, |item, _| {
 9919            item.set_has_deleted_file(true);
 9920        });
 9921
 9922        // Emit UpdateTab event to trigger the close behavior
 9923        cx.run_until_parked();
 9924        item.update(cx, |_, cx| {
 9925            cx.emit(ItemEvent::UpdateTab);
 9926        });
 9927
 9928        // Allow any potential close operation to complete
 9929        cx.run_until_parked();
 9930
 9931        // Verify the item remains open (dirty files are not auto-closed)
 9932        pane.read_with(cx, |pane, _| {
 9933            assert_eq!(
 9934                pane.items().count(),
 9935                1,
 9936                "Dirty items should not be automatically closed even when file is deleted"
 9937            );
 9938        });
 9939
 9940        // Verify the item is marked as deleted and still dirty
 9941        item.read_with(cx, |item, _| {
 9942            assert!(
 9943                item.has_deleted_file,
 9944                "Item should be marked as having deleted file"
 9945            );
 9946            assert!(item.is_dirty, "Item should still be dirty");
 9947        });
 9948    }
 9949
 9950    /// Tests that navigation history is cleaned up when files are auto-closed
 9951    /// due to deletion from disk.
 9952    #[gpui::test]
 9953    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
 9954        init_test(cx);
 9955
 9956        // Enable the close_on_file_delete setting
 9957        cx.update_global(|store: &mut SettingsStore, cx| {
 9958            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9959                settings.close_on_file_delete = Some(true);
 9960            });
 9961        });
 9962
 9963        let fs = FakeFs::new(cx.background_executor.clone());
 9964        let project = Project::test(fs, [], cx).await;
 9965        let (workspace, cx) =
 9966            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9967        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9968
 9969        // Create test items
 9970        let item1 = cx.new(|cx| {
 9971            TestItem::new(cx)
 9972                .with_label("test1.txt")
 9973                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
 9974        });
 9975        let item1_id = item1.item_id();
 9976
 9977        let item2 = cx.new(|cx| {
 9978            TestItem::new(cx)
 9979                .with_label("test2.txt")
 9980                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
 9981        });
 9982
 9983        // Add items to workspace
 9984        workspace.update_in(cx, |workspace, window, cx| {
 9985            workspace.add_item(
 9986                pane.clone(),
 9987                Box::new(item1.clone()),
 9988                None,
 9989                false,
 9990                false,
 9991                window,
 9992                cx,
 9993            );
 9994            workspace.add_item(
 9995                pane.clone(),
 9996                Box::new(item2.clone()),
 9997                None,
 9998                false,
 9999                false,
10000                window,
10001                cx,
10002            );
10003        });
10004
10005        // Activate item1 to ensure it gets navigation entries
10006        pane.update_in(cx, |pane, window, cx| {
10007            pane.activate_item(0, true, true, window, cx);
10008        });
10009
10010        // Switch to item2 and back to create navigation history
10011        pane.update_in(cx, |pane, window, cx| {
10012            pane.activate_item(1, true, true, window, cx);
10013        });
10014        cx.run_until_parked();
10015
10016        pane.update_in(cx, |pane, window, cx| {
10017            pane.activate_item(0, true, true, window, cx);
10018        });
10019        cx.run_until_parked();
10020
10021        // Simulate file deletion for item1
10022        item1.update(cx, |item, _| {
10023            item.set_has_deleted_file(true);
10024        });
10025
10026        // Emit UpdateTab event to trigger the close behavior
10027        item1.update(cx, |_, cx| {
10028            cx.emit(ItemEvent::UpdateTab);
10029        });
10030        cx.run_until_parked();
10031
10032        // Verify item1 was closed
10033        pane.read_with(cx, |pane, _| {
10034            assert_eq!(
10035                pane.items().count(),
10036                1,
10037                "Should have 1 item remaining after auto-close"
10038            );
10039        });
10040
10041        // Check navigation history after close
10042        let has_item = pane.read_with(cx, |pane, cx| {
10043            let mut has_item = false;
10044            pane.nav_history().for_each_entry(cx, |entry, _| {
10045                if entry.item.id() == item1_id {
10046                    has_item = true;
10047                }
10048            });
10049            has_item
10050        });
10051
10052        assert!(
10053            !has_item,
10054            "Navigation history should not contain closed item entries"
10055        );
10056    }
10057
10058    #[gpui::test]
10059    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
10060        cx: &mut TestAppContext,
10061    ) {
10062        init_test(cx);
10063
10064        let fs = FakeFs::new(cx.background_executor.clone());
10065        let project = Project::test(fs, [], cx).await;
10066        let (workspace, cx) =
10067            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10068        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10069
10070        let dirty_regular_buffer = cx.new(|cx| {
10071            TestItem::new(cx)
10072                .with_dirty(true)
10073                .with_label("1.txt")
10074                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10075        });
10076        let dirty_regular_buffer_2 = cx.new(|cx| {
10077            TestItem::new(cx)
10078                .with_dirty(true)
10079                .with_label("2.txt")
10080                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10081        });
10082        let clear_regular_buffer = cx.new(|cx| {
10083            TestItem::new(cx)
10084                .with_label("3.txt")
10085                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10086        });
10087
10088        let dirty_multi_buffer = cx.new(|cx| {
10089            TestItem::new(cx)
10090                .with_dirty(true)
10091                .with_singleton(false)
10092                .with_label("Fake Project Search")
10093                .with_project_items(&[
10094                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10095                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10096                    clear_regular_buffer.read(cx).project_items[0].clone(),
10097                ])
10098        });
10099        workspace.update_in(cx, |workspace, window, cx| {
10100            workspace.add_item(
10101                pane.clone(),
10102                Box::new(dirty_regular_buffer.clone()),
10103                None,
10104                false,
10105                false,
10106                window,
10107                cx,
10108            );
10109            workspace.add_item(
10110                pane.clone(),
10111                Box::new(dirty_regular_buffer_2.clone()),
10112                None,
10113                false,
10114                false,
10115                window,
10116                cx,
10117            );
10118            workspace.add_item(
10119                pane.clone(),
10120                Box::new(dirty_multi_buffer.clone()),
10121                None,
10122                false,
10123                false,
10124                window,
10125                cx,
10126            );
10127        });
10128
10129        pane.update_in(cx, |pane, window, cx| {
10130            pane.activate_item(2, true, true, window, cx);
10131            assert_eq!(
10132                pane.active_item().unwrap().item_id(),
10133                dirty_multi_buffer.item_id(),
10134                "Should select the multi buffer in the pane"
10135            );
10136        });
10137        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10138            pane.close_active_item(
10139                &CloseActiveItem {
10140                    save_intent: None,
10141                    close_pinned: false,
10142                },
10143                window,
10144                cx,
10145            )
10146        });
10147        cx.background_executor.run_until_parked();
10148        assert!(
10149            !cx.has_pending_prompt(),
10150            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
10151        );
10152        close_multi_buffer_task
10153            .await
10154            .expect("Closing multi buffer failed");
10155        pane.update(cx, |pane, cx| {
10156            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
10157            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
10158            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
10159            assert_eq!(
10160                pane.items()
10161                    .map(|item| item.item_id())
10162                    .sorted()
10163                    .collect::<Vec<_>>(),
10164                vec![
10165                    dirty_regular_buffer.item_id(),
10166                    dirty_regular_buffer_2.item_id(),
10167                ],
10168                "Should have no multi buffer left in the pane"
10169            );
10170            assert!(dirty_regular_buffer.read(cx).is_dirty);
10171            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
10172        });
10173    }
10174
10175    #[gpui::test]
10176    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
10177        init_test(cx);
10178        let fs = FakeFs::new(cx.executor());
10179        let project = Project::test(fs, [], cx).await;
10180        let (workspace, cx) =
10181            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10182
10183        // Add a new panel to the right dock, opening the dock and setting the
10184        // focus to the new panel.
10185        let panel = workspace.update_in(cx, |workspace, window, cx| {
10186            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
10187            workspace.add_panel(panel.clone(), window, cx);
10188
10189            workspace
10190                .right_dock()
10191                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
10192
10193            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10194
10195            panel
10196        });
10197
10198        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10199        // panel to the next valid position which, in this case, is the left
10200        // dock.
10201        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10202        workspace.update(cx, |workspace, cx| {
10203            assert!(workspace.left_dock().read(cx).is_open());
10204            assert_eq!(panel.read(cx).position, DockPosition::Left);
10205        });
10206
10207        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10208        // panel to the next valid position which, in this case, is the bottom
10209        // dock.
10210        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10211        workspace.update(cx, |workspace, cx| {
10212            assert!(workspace.bottom_dock().read(cx).is_open());
10213            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
10214        });
10215
10216        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
10217        // around moving the panel to its initial position, the right dock.
10218        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10219        workspace.update(cx, |workspace, cx| {
10220            assert!(workspace.right_dock().read(cx).is_open());
10221            assert_eq!(panel.read(cx).position, DockPosition::Right);
10222        });
10223
10224        // Remove focus from the panel, ensuring that, if the panel is not
10225        // focused, the `MoveFocusedPanelToNextPosition` action does not update
10226        // the panel's position, so the panel is still in the right dock.
10227        workspace.update_in(cx, |workspace, window, cx| {
10228            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10229        });
10230
10231        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10232        workspace.update(cx, |workspace, cx| {
10233            assert!(workspace.right_dock().read(cx).is_open());
10234            assert_eq!(panel.read(cx).position, DockPosition::Right);
10235        });
10236    }
10237
10238    #[gpui::test]
10239    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
10240        init_test(cx);
10241
10242        let fs = FakeFs::new(cx.executor());
10243        let project = Project::test(fs, [], cx).await;
10244        let (workspace, cx) =
10245            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10246
10247        let item_1 = cx.new(|cx| {
10248            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10249        });
10250        workspace.update_in(cx, |workspace, window, cx| {
10251            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10252            workspace.move_item_to_pane_in_direction(
10253                &MoveItemToPaneInDirection {
10254                    direction: SplitDirection::Right,
10255                    focus: true,
10256                    clone: false,
10257                },
10258                window,
10259                cx,
10260            );
10261            workspace.move_item_to_pane_at_index(
10262                &MoveItemToPane {
10263                    destination: 3,
10264                    focus: true,
10265                    clone: false,
10266                },
10267                window,
10268                cx,
10269            );
10270
10271            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
10272            assert_eq!(
10273                pane_items_paths(&workspace.active_pane, cx),
10274                vec!["first.txt".to_string()],
10275                "Single item was not moved anywhere"
10276            );
10277        });
10278
10279        let item_2 = cx.new(|cx| {
10280            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
10281        });
10282        workspace.update_in(cx, |workspace, window, cx| {
10283            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
10284            assert_eq!(
10285                pane_items_paths(&workspace.panes[0], cx),
10286                vec!["first.txt".to_string(), "second.txt".to_string()],
10287            );
10288            workspace.move_item_to_pane_in_direction(
10289                &MoveItemToPaneInDirection {
10290                    direction: SplitDirection::Right,
10291                    focus: true,
10292                    clone: false,
10293                },
10294                window,
10295                cx,
10296            );
10297
10298            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
10299            assert_eq!(
10300                pane_items_paths(&workspace.panes[0], cx),
10301                vec!["first.txt".to_string()],
10302                "After moving, one item should be left in the original pane"
10303            );
10304            assert_eq!(
10305                pane_items_paths(&workspace.panes[1], cx),
10306                vec!["second.txt".to_string()],
10307                "New item should have been moved to the new pane"
10308            );
10309        });
10310
10311        let item_3 = cx.new(|cx| {
10312            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
10313        });
10314        workspace.update_in(cx, |workspace, window, cx| {
10315            let original_pane = workspace.panes[0].clone();
10316            workspace.set_active_pane(&original_pane, window, cx);
10317            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
10318            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
10319            assert_eq!(
10320                pane_items_paths(&workspace.active_pane, cx),
10321                vec!["first.txt".to_string(), "third.txt".to_string()],
10322                "New pane should be ready to move one item out"
10323            );
10324
10325            workspace.move_item_to_pane_at_index(
10326                &MoveItemToPane {
10327                    destination: 3,
10328                    focus: true,
10329                    clone: false,
10330                },
10331                window,
10332                cx,
10333            );
10334            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
10335            assert_eq!(
10336                pane_items_paths(&workspace.active_pane, cx),
10337                vec!["first.txt".to_string()],
10338                "After moving, one item should be left in the original pane"
10339            );
10340            assert_eq!(
10341                pane_items_paths(&workspace.panes[1], cx),
10342                vec!["second.txt".to_string()],
10343                "Previously created pane should be unchanged"
10344            );
10345            assert_eq!(
10346                pane_items_paths(&workspace.panes[2], cx),
10347                vec!["third.txt".to_string()],
10348                "New item should have been moved to the new pane"
10349            );
10350        });
10351    }
10352
10353    #[gpui::test]
10354    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
10355        init_test(cx);
10356
10357        let fs = FakeFs::new(cx.executor());
10358        let project = Project::test(fs, [], cx).await;
10359        let (workspace, cx) =
10360            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10361
10362        let item_1 = cx.new(|cx| {
10363            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10364        });
10365        workspace.update_in(cx, |workspace, window, cx| {
10366            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10367            workspace.move_item_to_pane_in_direction(
10368                &MoveItemToPaneInDirection {
10369                    direction: SplitDirection::Right,
10370                    focus: true,
10371                    clone: true,
10372                },
10373                window,
10374                cx,
10375            );
10376            workspace.move_item_to_pane_at_index(
10377                &MoveItemToPane {
10378                    destination: 3,
10379                    focus: true,
10380                    clone: true,
10381                },
10382                window,
10383                cx,
10384            );
10385
10386            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
10387            for pane in workspace.panes() {
10388                assert_eq!(
10389                    pane_items_paths(pane, cx),
10390                    vec!["first.txt".to_string()],
10391                    "Single item exists in all panes"
10392                );
10393            }
10394        });
10395
10396        // verify that the active pane has been updated after waiting for the
10397        // pane focus event to fire and resolve
10398        workspace.read_with(cx, |workspace, _app| {
10399            assert_eq!(
10400                workspace.active_pane(),
10401                &workspace.panes[2],
10402                "The third pane should be the active one: {:?}",
10403                workspace.panes
10404            );
10405        })
10406    }
10407
10408    mod register_project_item_tests {
10409
10410        use super::*;
10411
10412        // View
10413        struct TestPngItemView {
10414            focus_handle: FocusHandle,
10415        }
10416        // Model
10417        struct TestPngItem {}
10418
10419        impl project::ProjectItem for TestPngItem {
10420            fn try_open(
10421                _project: &Entity<Project>,
10422                path: &ProjectPath,
10423                cx: &mut App,
10424            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
10425                if path.path.extension().unwrap() == "png" {
10426                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
10427                } else {
10428                    None
10429                }
10430            }
10431
10432            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
10433                None
10434            }
10435
10436            fn project_path(&self, _: &App) -> Option<ProjectPath> {
10437                None
10438            }
10439
10440            fn is_dirty(&self) -> bool {
10441                false
10442            }
10443        }
10444
10445        impl Item for TestPngItemView {
10446            type Event = ();
10447            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10448                "".into()
10449            }
10450        }
10451        impl EventEmitter<()> for TestPngItemView {}
10452        impl Focusable for TestPngItemView {
10453            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10454                self.focus_handle.clone()
10455            }
10456        }
10457
10458        impl Render for TestPngItemView {
10459            fn render(
10460                &mut self,
10461                _window: &mut Window,
10462                _cx: &mut Context<Self>,
10463            ) -> impl IntoElement {
10464                Empty
10465            }
10466        }
10467
10468        impl ProjectItem for TestPngItemView {
10469            type Item = TestPngItem;
10470
10471            fn for_project_item(
10472                _project: Entity<Project>,
10473                _pane: Option<&Pane>,
10474                _item: Entity<Self::Item>,
10475                _: &mut Window,
10476                cx: &mut Context<Self>,
10477            ) -> Self
10478            where
10479                Self: Sized,
10480            {
10481                Self {
10482                    focus_handle: cx.focus_handle(),
10483                }
10484            }
10485        }
10486
10487        // View
10488        struct TestIpynbItemView {
10489            focus_handle: FocusHandle,
10490        }
10491        // Model
10492        struct TestIpynbItem {}
10493
10494        impl project::ProjectItem for TestIpynbItem {
10495            fn try_open(
10496                _project: &Entity<Project>,
10497                path: &ProjectPath,
10498                cx: &mut App,
10499            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
10500                if path.path.extension().unwrap() == "ipynb" {
10501                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
10502                } else {
10503                    None
10504                }
10505            }
10506
10507            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
10508                None
10509            }
10510
10511            fn project_path(&self, _: &App) -> Option<ProjectPath> {
10512                None
10513            }
10514
10515            fn is_dirty(&self) -> bool {
10516                false
10517            }
10518        }
10519
10520        impl Item for TestIpynbItemView {
10521            type Event = ();
10522            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10523                "".into()
10524            }
10525        }
10526        impl EventEmitter<()> for TestIpynbItemView {}
10527        impl Focusable for TestIpynbItemView {
10528            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10529                self.focus_handle.clone()
10530            }
10531        }
10532
10533        impl Render for TestIpynbItemView {
10534            fn render(
10535                &mut self,
10536                _window: &mut Window,
10537                _cx: &mut Context<Self>,
10538            ) -> impl IntoElement {
10539                Empty
10540            }
10541        }
10542
10543        impl ProjectItem for TestIpynbItemView {
10544            type Item = TestIpynbItem;
10545
10546            fn for_project_item(
10547                _project: Entity<Project>,
10548                _pane: Option<&Pane>,
10549                _item: Entity<Self::Item>,
10550                _: &mut Window,
10551                cx: &mut Context<Self>,
10552            ) -> Self
10553            where
10554                Self: Sized,
10555            {
10556                Self {
10557                    focus_handle: cx.focus_handle(),
10558                }
10559            }
10560        }
10561
10562        struct TestAlternatePngItemView {
10563            focus_handle: FocusHandle,
10564        }
10565
10566        impl Item for TestAlternatePngItemView {
10567            type Event = ();
10568            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10569                "".into()
10570            }
10571        }
10572
10573        impl EventEmitter<()> for TestAlternatePngItemView {}
10574        impl Focusable for TestAlternatePngItemView {
10575            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10576                self.focus_handle.clone()
10577            }
10578        }
10579
10580        impl Render for TestAlternatePngItemView {
10581            fn render(
10582                &mut self,
10583                _window: &mut Window,
10584                _cx: &mut Context<Self>,
10585            ) -> impl IntoElement {
10586                Empty
10587            }
10588        }
10589
10590        impl ProjectItem for TestAlternatePngItemView {
10591            type Item = TestPngItem;
10592
10593            fn for_project_item(
10594                _project: Entity<Project>,
10595                _pane: Option<&Pane>,
10596                _item: Entity<Self::Item>,
10597                _: &mut Window,
10598                cx: &mut Context<Self>,
10599            ) -> Self
10600            where
10601                Self: Sized,
10602            {
10603                Self {
10604                    focus_handle: cx.focus_handle(),
10605                }
10606            }
10607        }
10608
10609        #[gpui::test]
10610        async fn test_register_project_item(cx: &mut TestAppContext) {
10611            init_test(cx);
10612
10613            cx.update(|cx| {
10614                register_project_item::<TestPngItemView>(cx);
10615                register_project_item::<TestIpynbItemView>(cx);
10616            });
10617
10618            let fs = FakeFs::new(cx.executor());
10619            fs.insert_tree(
10620                "/root1",
10621                json!({
10622                    "one.png": "BINARYDATAHERE",
10623                    "two.ipynb": "{ totally a notebook }",
10624                    "three.txt": "editing text, sure why not?"
10625                }),
10626            )
10627            .await;
10628
10629            let project = Project::test(fs, ["root1".as_ref()], cx).await;
10630            let (workspace, cx) =
10631                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10632
10633            let worktree_id = project.update(cx, |project, cx| {
10634                project.worktrees(cx).next().unwrap().read(cx).id()
10635            });
10636
10637            let handle = workspace
10638                .update_in(cx, |workspace, window, cx| {
10639                    let project_path = (worktree_id, "one.png");
10640                    workspace.open_path(project_path, None, true, window, cx)
10641                })
10642                .await
10643                .unwrap();
10644
10645            // Now we can check if the handle we got back errored or not
10646            assert_eq!(
10647                handle.to_any().entity_type(),
10648                TypeId::of::<TestPngItemView>()
10649            );
10650
10651            let handle = workspace
10652                .update_in(cx, |workspace, window, cx| {
10653                    let project_path = (worktree_id, "two.ipynb");
10654                    workspace.open_path(project_path, None, true, window, cx)
10655                })
10656                .await
10657                .unwrap();
10658
10659            assert_eq!(
10660                handle.to_any().entity_type(),
10661                TypeId::of::<TestIpynbItemView>()
10662            );
10663
10664            let handle = workspace
10665                .update_in(cx, |workspace, window, cx| {
10666                    let project_path = (worktree_id, "three.txt");
10667                    workspace.open_path(project_path, None, true, window, cx)
10668                })
10669                .await;
10670            assert!(handle.is_err());
10671        }
10672
10673        #[gpui::test]
10674        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
10675            init_test(cx);
10676
10677            cx.update(|cx| {
10678                register_project_item::<TestPngItemView>(cx);
10679                register_project_item::<TestAlternatePngItemView>(cx);
10680            });
10681
10682            let fs = FakeFs::new(cx.executor());
10683            fs.insert_tree(
10684                "/root1",
10685                json!({
10686                    "one.png": "BINARYDATAHERE",
10687                    "two.ipynb": "{ totally a notebook }",
10688                    "three.txt": "editing text, sure why not?"
10689                }),
10690            )
10691            .await;
10692            let project = Project::test(fs, ["root1".as_ref()], cx).await;
10693            let (workspace, cx) =
10694                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10695            let worktree_id = project.update(cx, |project, cx| {
10696                project.worktrees(cx).next().unwrap().read(cx).id()
10697            });
10698
10699            let handle = workspace
10700                .update_in(cx, |workspace, window, cx| {
10701                    let project_path = (worktree_id, "one.png");
10702                    workspace.open_path(project_path, None, true, window, cx)
10703                })
10704                .await
10705                .unwrap();
10706
10707            // This _must_ be the second item registered
10708            assert_eq!(
10709                handle.to_any().entity_type(),
10710                TypeId::of::<TestAlternatePngItemView>()
10711            );
10712
10713            let handle = workspace
10714                .update_in(cx, |workspace, window, cx| {
10715                    let project_path = (worktree_id, "three.txt");
10716                    workspace.open_path(project_path, None, true, window, cx)
10717                })
10718                .await;
10719            assert!(handle.is_err());
10720        }
10721    }
10722
10723    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
10724        pane.read(cx)
10725            .items()
10726            .flat_map(|item| {
10727                item.project_paths(cx)
10728                    .into_iter()
10729                    .map(|path| path.path.to_string_lossy().to_string())
10730            })
10731            .collect()
10732    }
10733
10734    pub fn init_test(cx: &mut TestAppContext) {
10735        cx.update(|cx| {
10736            let settings_store = SettingsStore::test(cx);
10737            cx.set_global(settings_store);
10738            theme::init(theme::LoadThemes::JustBase, cx);
10739            language::init(cx);
10740            crate::init_settings(cx);
10741            Project::init_settings(cx);
10742        });
10743    }
10744
10745    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
10746        let item = TestProjectItem::new(id, path, cx);
10747        item.update(cx, |item, _| {
10748            item.is_dirty = true;
10749        });
10750        item
10751    }
10752}