workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod invalid_item_view;
    4pub mod item;
    5mod modal_layer;
    6pub mod notifications;
    7pub mod pane;
    8pub mod pane_group;
    9mod path_list;
   10mod persistence;
   11pub mod searchable;
   12pub mod shared_screen;
   13mod status_bar;
   14pub mod tasks;
   15mod theme_preview;
   16mod toast_layer;
   17mod toolbar;
   18mod workspace_settings;
   19
   20pub use crate::notifications::NotificationFrame;
   21pub use dock::Panel;
   22pub use path_list::PathList;
   23pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   24
   25use anyhow::{Context as _, Result, anyhow};
   26use call::{ActiveCall, call_settings::CallSettings};
   27use client::{
   28    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   29    proto::{self, ErrorCode, PanelId, PeerId},
   30};
   31use collections::{HashMap, HashSet, hash_map};
   32use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   33use futures::{
   34    Future, FutureExt, StreamExt,
   35    channel::{
   36        mpsc::{self, UnboundedReceiver, UnboundedSender},
   37        oneshot,
   38    },
   39    future::{Shared, try_join_all},
   40};
   41use gpui::{
   42    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   43    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   44    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   45    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   46    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   47    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   48};
   49pub use history_manager::*;
   50pub use item::{
   51    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   52    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   53};
   54use itertools::Itertools;
   55use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   56pub use modal_layer::*;
   57use node_runtime::NodeRuntime;
   58use notifications::{
   59    DetachAndPromptErr, Notifications, dismiss_app_notification,
   60    simple_message_notification::MessageNotification,
   61};
   62pub use pane::*;
   63pub use pane_group::{
   64    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   65    SplitDirection,
   66};
   67use persistence::{DB, SerializedWindowBounds, model::SerializedWorkspace};
   68pub use persistence::{
   69    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   70    model::{ItemId, SerializedWorkspaceLocation},
   71};
   72use postage::stream::Stream;
   73use project::{
   74    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   75    WorktreeSettings,
   76    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   77    toolchain_store::ToolchainStoreEvent,
   78};
   79use remote::{
   80    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   81    remote_client::ConnectionIdentifier,
   82};
   83use schemars::JsonSchema;
   84use serde::Deserialize;
   85use session::AppSession;
   86use settings::{CenteredPaddingSettings, Settings, SettingsLocation, update_settings_file};
   87use shared_screen::SharedScreen;
   88use sqlez::{
   89    bindable::{Bind, Column, StaticColumnCount},
   90    statement::Statement,
   91};
   92use status_bar::StatusBar;
   93pub use status_bar::StatusItemView;
   94use std::{
   95    any::TypeId,
   96    borrow::Cow,
   97    cell::RefCell,
   98    cmp,
   99    collections::{VecDeque, hash_map::DefaultHasher},
  100    env,
  101    hash::{Hash, Hasher},
  102    path::{Path, PathBuf},
  103    process::ExitStatus,
  104    rc::Rc,
  105    sync::{
  106        Arc, LazyLock, Weak,
  107        atomic::{AtomicBool, AtomicUsize},
  108    },
  109    time::Duration,
  110};
  111use task::{DebugScenario, SpawnInTerminal, TaskContext};
  112use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  113pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  114pub use ui;
  115use ui::{Window, prelude::*};
  116use util::{
  117    ResultExt, TryFutureExt,
  118    paths::{PathStyle, SanitizedPath},
  119    rel_path::RelPath,
  120    serde::default_true,
  121};
  122use uuid::Uuid;
  123pub use workspace_settings::{
  124    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  125    WorkspaceSettings,
  126};
  127use zed_actions::{Spawn, feedback::FileBugReport};
  128
  129use crate::persistence::{
  130    SerializedAxis,
  131    model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  132};
  133use crate::{item::ItemBufferKind, notifications::NotificationId};
  134
  135pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  136
  137static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  138    env::var("ZED_WINDOW_SIZE")
  139        .ok()
  140        .as_deref()
  141        .and_then(parse_pixel_size_env_var)
  142});
  143
  144static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  145    env::var("ZED_WINDOW_POSITION")
  146        .ok()
  147        .as_deref()
  148        .and_then(parse_pixel_position_env_var)
  149});
  150
  151pub trait TerminalProvider {
  152    fn spawn(
  153        &self,
  154        task: SpawnInTerminal,
  155        window: &mut Window,
  156        cx: &mut App,
  157    ) -> Task<Option<Result<ExitStatus>>>;
  158}
  159
  160pub trait DebuggerProvider {
  161    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  162    fn start_session(
  163        &self,
  164        definition: DebugScenario,
  165        task_context: TaskContext,
  166        active_buffer: Option<Entity<Buffer>>,
  167        worktree_id: Option<WorktreeId>,
  168        window: &mut Window,
  169        cx: &mut App,
  170    );
  171
  172    fn spawn_task_or_modal(
  173        &self,
  174        workspace: &mut Workspace,
  175        action: &Spawn,
  176        window: &mut Window,
  177        cx: &mut Context<Workspace>,
  178    );
  179
  180    fn task_scheduled(&self, cx: &mut App);
  181    fn debug_scenario_scheduled(&self, cx: &mut App);
  182    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  183
  184    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  185}
  186
  187actions!(
  188    workspace,
  189    [
  190        /// Activates the next pane in the workspace.
  191        ActivateNextPane,
  192        /// Activates the previous pane in the workspace.
  193        ActivatePreviousPane,
  194        /// Switches to the next window.
  195        ActivateNextWindow,
  196        /// Switches to the previous window.
  197        ActivatePreviousWindow,
  198        /// Adds a folder to the current project.
  199        AddFolderToProject,
  200        /// Clears all notifications.
  201        ClearAllNotifications,
  202        /// Closes the active dock.
  203        CloseActiveDock,
  204        /// Closes all docks.
  205        CloseAllDocks,
  206        /// Toggles all docks.
  207        ToggleAllDocks,
  208        /// Closes the current window.
  209        CloseWindow,
  210        /// Opens the feedback dialog.
  211        Feedback,
  212        /// Follows the next collaborator in the session.
  213        FollowNextCollaborator,
  214        /// Moves the focused panel to the next position.
  215        MoveFocusedPanelToNextPosition,
  216        /// Opens a new terminal in the center.
  217        NewCenterTerminal,
  218        /// Creates a new file.
  219        NewFile,
  220        /// Creates a new file in a vertical split.
  221        NewFileSplitVertical,
  222        /// Creates a new file in a horizontal split.
  223        NewFileSplitHorizontal,
  224        /// Opens a new search.
  225        NewSearch,
  226        /// Opens a new terminal.
  227        NewTerminal,
  228        /// Opens a new window.
  229        NewWindow,
  230        /// Opens a file or directory.
  231        Open,
  232        /// Opens multiple files.
  233        OpenFiles,
  234        /// Opens the current location in terminal.
  235        OpenInTerminal,
  236        /// Opens the component preview.
  237        OpenComponentPreview,
  238        /// Reloads the active item.
  239        ReloadActiveItem,
  240        /// Resets the active dock to its default size.
  241        ResetActiveDockSize,
  242        /// Resets all open docks to their default sizes.
  243        ResetOpenDocksSize,
  244        /// Reloads the application
  245        Reload,
  246        /// Saves the current file with a new name.
  247        SaveAs,
  248        /// Saves without formatting.
  249        SaveWithoutFormat,
  250        /// Shuts down all debug adapters.
  251        ShutdownDebugAdapters,
  252        /// Suppresses the current notification.
  253        SuppressNotification,
  254        /// Toggles the bottom dock.
  255        ToggleBottomDock,
  256        /// Toggles centered layout mode.
  257        ToggleCenteredLayout,
  258        /// Toggles edit prediction feature globally for all files.
  259        ToggleEditPrediction,
  260        /// Toggles the left dock.
  261        ToggleLeftDock,
  262        /// Toggles the right dock.
  263        ToggleRightDock,
  264        /// Toggles zoom on the active pane.
  265        ToggleZoom,
  266        /// Stops following a collaborator.
  267        Unfollow,
  268        /// Restores the banner.
  269        RestoreBanner,
  270        /// Toggles expansion of the selected item.
  271        ToggleExpandItem,
  272    ]
  273);
  274
  275/// Activates a specific pane by its index.
  276#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  277#[action(namespace = workspace)]
  278pub struct ActivatePane(pub usize);
  279
  280/// Moves an item to a specific pane by index.
  281#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  282#[action(namespace = workspace)]
  283#[serde(deny_unknown_fields)]
  284pub struct MoveItemToPane {
  285    #[serde(default = "default_1")]
  286    pub destination: usize,
  287    #[serde(default = "default_true")]
  288    pub focus: bool,
  289    #[serde(default)]
  290    pub clone: bool,
  291}
  292
  293fn default_1() -> usize {
  294    1
  295}
  296
  297/// Moves an item to a pane in the specified direction.
  298#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  299#[action(namespace = workspace)]
  300#[serde(deny_unknown_fields)]
  301pub struct MoveItemToPaneInDirection {
  302    #[serde(default = "default_right")]
  303    pub direction: SplitDirection,
  304    #[serde(default = "default_true")]
  305    pub focus: bool,
  306    #[serde(default)]
  307    pub clone: bool,
  308}
  309
  310/// Creates a new file in a split of the desired direction.
  311#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  312#[action(namespace = workspace)]
  313#[serde(deny_unknown_fields)]
  314pub struct NewFileSplit(pub SplitDirection);
  315
  316fn default_right() -> SplitDirection {
  317    SplitDirection::Right
  318}
  319
  320/// Saves all open files in the workspace.
  321#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  322#[action(namespace = workspace)]
  323#[serde(deny_unknown_fields)]
  324pub struct SaveAll {
  325    #[serde(default)]
  326    pub save_intent: Option<SaveIntent>,
  327}
  328
  329/// Saves the current file with the specified options.
  330#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  331#[action(namespace = workspace)]
  332#[serde(deny_unknown_fields)]
  333pub struct Save {
  334    #[serde(default)]
  335    pub save_intent: Option<SaveIntent>,
  336}
  337
  338/// Closes all items and panes in the workspace.
  339#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  340#[action(namespace = workspace)]
  341#[serde(deny_unknown_fields)]
  342pub struct CloseAllItemsAndPanes {
  343    #[serde(default)]
  344    pub save_intent: Option<SaveIntent>,
  345}
  346
  347/// Closes all inactive tabs and panes in the workspace.
  348#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  349#[action(namespace = workspace)]
  350#[serde(deny_unknown_fields)]
  351pub struct CloseInactiveTabsAndPanes {
  352    #[serde(default)]
  353    pub save_intent: Option<SaveIntent>,
  354}
  355
  356/// Sends a sequence of keystrokes to the active element.
  357#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  358#[action(namespace = workspace)]
  359pub struct SendKeystrokes(pub String);
  360
  361actions!(
  362    project_symbols,
  363    [
  364        /// Toggles the project symbols search.
  365        #[action(name = "Toggle")]
  366        ToggleProjectSymbols
  367    ]
  368);
  369
  370/// Toggles the file finder interface.
  371#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  372#[action(namespace = file_finder, name = "Toggle")]
  373#[serde(deny_unknown_fields)]
  374pub struct ToggleFileFinder {
  375    #[serde(default)]
  376    pub separate_history: bool,
  377}
  378
  379/// Increases size of a currently focused dock by a given amount of pixels.
  380#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  381#[action(namespace = workspace)]
  382#[serde(deny_unknown_fields)]
  383pub struct IncreaseActiveDockSize {
  384    /// For 0px parameter, uses UI font size value.
  385    #[serde(default)]
  386    pub px: u32,
  387}
  388
  389/// Decreases size of a currently focused dock by a given amount of pixels.
  390#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  391#[action(namespace = workspace)]
  392#[serde(deny_unknown_fields)]
  393pub struct DecreaseActiveDockSize {
  394    /// For 0px parameter, uses UI font size value.
  395    #[serde(default)]
  396    pub px: u32,
  397}
  398
  399/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  400#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  401#[action(namespace = workspace)]
  402#[serde(deny_unknown_fields)]
  403pub struct IncreaseOpenDocksSize {
  404    /// For 0px parameter, uses UI font size value.
  405    #[serde(default)]
  406    pub px: u32,
  407}
  408
  409/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  410#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  411#[action(namespace = workspace)]
  412#[serde(deny_unknown_fields)]
  413pub struct DecreaseOpenDocksSize {
  414    /// For 0px parameter, uses UI font size value.
  415    #[serde(default)]
  416    pub px: u32,
  417}
  418
  419actions!(
  420    workspace,
  421    [
  422        /// Activates the pane to the left.
  423        ActivatePaneLeft,
  424        /// Activates the pane to the right.
  425        ActivatePaneRight,
  426        /// Activates the pane above.
  427        ActivatePaneUp,
  428        /// Activates the pane below.
  429        ActivatePaneDown,
  430        /// Swaps the current pane with the one to the left.
  431        SwapPaneLeft,
  432        /// Swaps the current pane with the one to the right.
  433        SwapPaneRight,
  434        /// Swaps the current pane with the one above.
  435        SwapPaneUp,
  436        /// Swaps the current pane with the one below.
  437        SwapPaneDown,
  438        /// Move the current pane to be at the far left.
  439        MovePaneLeft,
  440        /// Move the current pane to be at the far right.
  441        MovePaneRight,
  442        /// Move the current pane to be at the very top.
  443        MovePaneUp,
  444        /// Move the current pane to be at the very bottom.
  445        MovePaneDown,
  446    ]
  447);
  448
  449#[derive(PartialEq, Eq, Debug)]
  450pub enum CloseIntent {
  451    /// Quit the program entirely.
  452    Quit,
  453    /// Close a window.
  454    CloseWindow,
  455    /// Replace the workspace in an existing window.
  456    ReplaceWindow,
  457}
  458
  459#[derive(Clone)]
  460pub struct Toast {
  461    id: NotificationId,
  462    msg: Cow<'static, str>,
  463    autohide: bool,
  464    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  465}
  466
  467impl Toast {
  468    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  469        Toast {
  470            id,
  471            msg: msg.into(),
  472            on_click: None,
  473            autohide: false,
  474        }
  475    }
  476
  477    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  478    where
  479        M: Into<Cow<'static, str>>,
  480        F: Fn(&mut Window, &mut App) + 'static,
  481    {
  482        self.on_click = Some((message.into(), Arc::new(on_click)));
  483        self
  484    }
  485
  486    pub fn autohide(mut self) -> Self {
  487        self.autohide = true;
  488        self
  489    }
  490}
  491
  492impl PartialEq for Toast {
  493    fn eq(&self, other: &Self) -> bool {
  494        self.id == other.id
  495            && self.msg == other.msg
  496            && self.on_click.is_some() == other.on_click.is_some()
  497    }
  498}
  499
  500/// Opens a new terminal with the specified working directory.
  501#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  502#[action(namespace = workspace)]
  503#[serde(deny_unknown_fields)]
  504pub struct OpenTerminal {
  505    pub working_directory: PathBuf,
  506}
  507
  508#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  509pub struct WorkspaceId(i64);
  510
  511impl StaticColumnCount for WorkspaceId {}
  512impl Bind for WorkspaceId {
  513    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  514        self.0.bind(statement, start_index)
  515    }
  516}
  517impl Column for WorkspaceId {
  518    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  519        i64::column(statement, start_index)
  520            .map(|(i, next_index)| (Self(i), next_index))
  521            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  522    }
  523}
  524impl From<WorkspaceId> for i64 {
  525    fn from(val: WorkspaceId) -> Self {
  526        val.0
  527    }
  528}
  529
  530pub fn init_settings(cx: &mut App) {
  531    WorkspaceSettings::register(cx);
  532    ItemSettings::register(cx);
  533    PreviewTabsSettings::register(cx);
  534    TabBarSettings::register(cx);
  535    StatusBarSettings::register(cx);
  536}
  537
  538fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  539    let paths = cx.prompt_for_paths(options);
  540    cx.spawn(
  541        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  542            Ok(Some(paths)) => {
  543                cx.update(|cx| {
  544                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  545                })
  546                .ok();
  547            }
  548            Ok(None) => {}
  549            Err(err) => {
  550                util::log_err(&err);
  551                cx.update(|cx| {
  552                    if let Some(workspace_window) = cx
  553                        .active_window()
  554                        .and_then(|window| window.downcast::<Workspace>())
  555                    {
  556                        workspace_window
  557                            .update(cx, |workspace, _, cx| {
  558                                workspace.show_portal_error(err.to_string(), cx);
  559                            })
  560                            .ok();
  561                    }
  562                })
  563                .ok();
  564            }
  565        },
  566    )
  567    .detach();
  568}
  569
  570pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  571    init_settings(cx);
  572    component::init();
  573    theme_preview::init(cx);
  574    toast_layer::init(cx);
  575    history_manager::init(cx);
  576
  577    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx));
  578    cx.on_action(|_: &Reload, cx| reload(cx));
  579
  580    cx.on_action({
  581        let app_state = Arc::downgrade(&app_state);
  582        move |_: &Open, cx: &mut App| {
  583            if let Some(app_state) = app_state.upgrade() {
  584                prompt_and_open_paths(
  585                    app_state,
  586                    PathPromptOptions {
  587                        files: true,
  588                        directories: true,
  589                        multiple: true,
  590                        prompt: None,
  591                    },
  592                    cx,
  593                );
  594            }
  595        }
  596    });
  597    cx.on_action({
  598        let app_state = Arc::downgrade(&app_state);
  599        move |_: &OpenFiles, cx: &mut App| {
  600            let directories = cx.can_select_mixed_files_and_dirs();
  601            if let Some(app_state) = app_state.upgrade() {
  602                prompt_and_open_paths(
  603                    app_state,
  604                    PathPromptOptions {
  605                        files: true,
  606                        directories,
  607                        multiple: true,
  608                        prompt: None,
  609                    },
  610                    cx,
  611                );
  612            }
  613        }
  614    });
  615}
  616
  617type BuildProjectItemFn =
  618    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  619
  620type BuildProjectItemForPathFn =
  621    fn(
  622        &Entity<Project>,
  623        &ProjectPath,
  624        &mut Window,
  625        &mut App,
  626    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  627
  628#[derive(Clone, Default)]
  629struct ProjectItemRegistry {
  630    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  631    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  632}
  633
  634impl ProjectItemRegistry {
  635    fn register<T: ProjectItem>(&mut self) {
  636        self.build_project_item_fns_by_type.insert(
  637            TypeId::of::<T::Item>(),
  638            |item, project, pane, window, cx| {
  639                let item = item.downcast().unwrap();
  640                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  641                    as Box<dyn ItemHandle>
  642            },
  643        );
  644        self.build_project_item_for_path_fns
  645            .push(|project, project_path, window, cx| {
  646                let project_path = project_path.clone();
  647                let is_file = project
  648                    .read(cx)
  649                    .entry_for_path(&project_path, cx)
  650                    .is_some_and(|entry| entry.is_file());
  651                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  652                let is_local = project.read(cx).is_local();
  653                let project_item =
  654                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  655                let project = project.clone();
  656                Some(window.spawn(cx, async move |cx| {
  657                    match project_item.await.with_context(|| {
  658                        format!(
  659                            "opening project path {:?}",
  660                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  661                        )
  662                    }) {
  663                        Ok(project_item) => {
  664                            let project_item = project_item;
  665                            let project_entry_id: Option<ProjectEntryId> =
  666                                project_item.read_with(cx, project::ProjectItem::entry_id)?;
  667                            let build_workspace_item = Box::new(
  668                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  669                                    Box::new(cx.new(|cx| {
  670                                        T::for_project_item(
  671                                            project,
  672                                            Some(pane),
  673                                            project_item,
  674                                            window,
  675                                            cx,
  676                                        )
  677                                    })) as Box<dyn ItemHandle>
  678                                },
  679                            ) as Box<_>;
  680                            Ok((project_entry_id, build_workspace_item))
  681                        }
  682                        Err(e) => {
  683                            if e.error_code() == ErrorCode::Internal {
  684                                if let Some(abs_path) =
  685                                    entry_abs_path.as_deref().filter(|_| is_file)
  686                                {
  687                                    if let Some(broken_project_item_view) =
  688                                        cx.update(|window, cx| {
  689                                            T::for_broken_project_item(
  690                                                abs_path, is_local, &e, window, cx,
  691                                            )
  692                                        })?
  693                                    {
  694                                        let build_workspace_item = Box::new(
  695                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  696                                                cx.new(|_| broken_project_item_view).boxed_clone()
  697                                            },
  698                                        )
  699                                        as Box<_>;
  700                                        return Ok((None, build_workspace_item));
  701                                    }
  702                                }
  703                            }
  704                            Err(e)
  705                        }
  706                    }
  707                }))
  708            });
  709    }
  710
  711    fn open_path(
  712        &self,
  713        project: &Entity<Project>,
  714        path: &ProjectPath,
  715        window: &mut Window,
  716        cx: &mut App,
  717    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  718        let Some(open_project_item) = self
  719            .build_project_item_for_path_fns
  720            .iter()
  721            .rev()
  722            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  723        else {
  724            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  725        };
  726        open_project_item
  727    }
  728
  729    fn build_item<T: project::ProjectItem>(
  730        &self,
  731        item: Entity<T>,
  732        project: Entity<Project>,
  733        pane: Option<&Pane>,
  734        window: &mut Window,
  735        cx: &mut App,
  736    ) -> Option<Box<dyn ItemHandle>> {
  737        let build = self
  738            .build_project_item_fns_by_type
  739            .get(&TypeId::of::<T>())?;
  740        Some(build(item.into_any(), project, pane, window, cx))
  741    }
  742}
  743
  744type WorkspaceItemBuilder =
  745    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  746
  747impl Global for ProjectItemRegistry {}
  748
  749/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  750/// items will get a chance to open the file, starting from the project item that
  751/// was added last.
  752pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  753    cx.default_global::<ProjectItemRegistry>().register::<I>();
  754}
  755
  756#[derive(Default)]
  757pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  758
  759struct FollowableViewDescriptor {
  760    from_state_proto: fn(
  761        Entity<Workspace>,
  762        ViewId,
  763        &mut Option<proto::view::Variant>,
  764        &mut Window,
  765        &mut App,
  766    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  767    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  768}
  769
  770impl Global for FollowableViewRegistry {}
  771
  772impl FollowableViewRegistry {
  773    pub fn register<I: FollowableItem>(cx: &mut App) {
  774        cx.default_global::<Self>().0.insert(
  775            TypeId::of::<I>(),
  776            FollowableViewDescriptor {
  777                from_state_proto: |workspace, id, state, window, cx| {
  778                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  779                        cx.foreground_executor()
  780                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  781                    })
  782                },
  783                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  784            },
  785        );
  786    }
  787
  788    pub fn from_state_proto(
  789        workspace: Entity<Workspace>,
  790        view_id: ViewId,
  791        mut state: Option<proto::view::Variant>,
  792        window: &mut Window,
  793        cx: &mut App,
  794    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  795        cx.update_default_global(|this: &mut Self, cx| {
  796            this.0.values().find_map(|descriptor| {
  797                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  798            })
  799        })
  800    }
  801
  802    pub fn to_followable_view(
  803        view: impl Into<AnyView>,
  804        cx: &App,
  805    ) -> Option<Box<dyn FollowableItemHandle>> {
  806        let this = cx.try_global::<Self>()?;
  807        let view = view.into();
  808        let descriptor = this.0.get(&view.entity_type())?;
  809        Some((descriptor.to_followable_view)(&view))
  810    }
  811}
  812
  813#[derive(Copy, Clone)]
  814struct SerializableItemDescriptor {
  815    deserialize: fn(
  816        Entity<Project>,
  817        WeakEntity<Workspace>,
  818        WorkspaceId,
  819        ItemId,
  820        &mut Window,
  821        &mut Context<Pane>,
  822    ) -> Task<Result<Box<dyn ItemHandle>>>,
  823    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  824    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  825}
  826
  827#[derive(Default)]
  828struct SerializableItemRegistry {
  829    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  830    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  831}
  832
  833impl Global for SerializableItemRegistry {}
  834
  835impl SerializableItemRegistry {
  836    fn deserialize(
  837        item_kind: &str,
  838        project: Entity<Project>,
  839        workspace: WeakEntity<Workspace>,
  840        workspace_id: WorkspaceId,
  841        item_item: ItemId,
  842        window: &mut Window,
  843        cx: &mut Context<Pane>,
  844    ) -> Task<Result<Box<dyn ItemHandle>>> {
  845        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  846            return Task::ready(Err(anyhow!(
  847                "cannot deserialize {}, descriptor not found",
  848                item_kind
  849            )));
  850        };
  851
  852        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  853    }
  854
  855    fn cleanup(
  856        item_kind: &str,
  857        workspace_id: WorkspaceId,
  858        loaded_items: Vec<ItemId>,
  859        window: &mut Window,
  860        cx: &mut App,
  861    ) -> Task<Result<()>> {
  862        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  863            return Task::ready(Err(anyhow!(
  864                "cannot cleanup {}, descriptor not found",
  865                item_kind
  866            )));
  867        };
  868
  869        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  870    }
  871
  872    fn view_to_serializable_item_handle(
  873        view: AnyView,
  874        cx: &App,
  875    ) -> Option<Box<dyn SerializableItemHandle>> {
  876        let this = cx.try_global::<Self>()?;
  877        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  878        Some((descriptor.view_to_serializable_item)(view))
  879    }
  880
  881    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  882        let this = cx.try_global::<Self>()?;
  883        this.descriptors_by_kind.get(item_kind).copied()
  884    }
  885}
  886
  887pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  888    let serialized_item_kind = I::serialized_item_kind();
  889
  890    let registry = cx.default_global::<SerializableItemRegistry>();
  891    let descriptor = SerializableItemDescriptor {
  892        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  893            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  894            cx.foreground_executor()
  895                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  896        },
  897        cleanup: |workspace_id, loaded_items, window, cx| {
  898            I::cleanup(workspace_id, loaded_items, window, cx)
  899        },
  900        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  901    };
  902    registry
  903        .descriptors_by_kind
  904        .insert(Arc::from(serialized_item_kind), descriptor);
  905    registry
  906        .descriptors_by_type
  907        .insert(TypeId::of::<I>(), descriptor);
  908}
  909
  910pub struct AppState {
  911    pub languages: Arc<LanguageRegistry>,
  912    pub client: Arc<Client>,
  913    pub user_store: Entity<UserStore>,
  914    pub workspace_store: Entity<WorkspaceStore>,
  915    pub fs: Arc<dyn fs::Fs>,
  916    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  917    pub node_runtime: NodeRuntime,
  918    pub session: Entity<AppSession>,
  919}
  920
  921struct GlobalAppState(Weak<AppState>);
  922
  923impl Global for GlobalAppState {}
  924
  925pub struct WorkspaceStore {
  926    workspaces: HashSet<WindowHandle<Workspace>>,
  927    client: Arc<Client>,
  928    _subscriptions: Vec<client::Subscription>,
  929}
  930
  931#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  932pub enum CollaboratorId {
  933    PeerId(PeerId),
  934    Agent,
  935}
  936
  937impl From<PeerId> for CollaboratorId {
  938    fn from(peer_id: PeerId) -> Self {
  939        CollaboratorId::PeerId(peer_id)
  940    }
  941}
  942
  943impl From<&PeerId> for CollaboratorId {
  944    fn from(peer_id: &PeerId) -> Self {
  945        CollaboratorId::PeerId(*peer_id)
  946    }
  947}
  948
  949#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  950struct Follower {
  951    project_id: Option<u64>,
  952    peer_id: PeerId,
  953}
  954
  955impl AppState {
  956    #[track_caller]
  957    pub fn global(cx: &App) -> Weak<Self> {
  958        cx.global::<GlobalAppState>().0.clone()
  959    }
  960    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  961        cx.try_global::<GlobalAppState>()
  962            .map(|state| state.0.clone())
  963    }
  964    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  965        cx.set_global(GlobalAppState(state));
  966    }
  967
  968    #[cfg(any(test, feature = "test-support"))]
  969    pub fn test(cx: &mut App) -> Arc<Self> {
  970        use node_runtime::NodeRuntime;
  971        use session::Session;
  972        use settings::SettingsStore;
  973
  974        if !cx.has_global::<SettingsStore>() {
  975            let settings_store = SettingsStore::test(cx);
  976            cx.set_global(settings_store);
  977        }
  978
  979        let fs = fs::FakeFs::new(cx.background_executor().clone());
  980        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
  981        let clock = Arc::new(clock::FakeSystemClock::new());
  982        let http_client = http_client::FakeHttpClient::with_404_response();
  983        let client = Client::new(clock, http_client, cx);
  984        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
  985        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
  986        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
  987
  988        theme::init(theme::LoadThemes::JustBase, cx);
  989        client::init(&client, cx);
  990        crate::init_settings(cx);
  991
  992        Arc::new(Self {
  993            client,
  994            fs,
  995            languages,
  996            user_store,
  997            workspace_store,
  998            node_runtime: NodeRuntime::unavailable(),
  999            build_window_options: |_, _| Default::default(),
 1000            session,
 1001        })
 1002    }
 1003}
 1004
 1005struct DelayedDebouncedEditAction {
 1006    task: Option<Task<()>>,
 1007    cancel_channel: Option<oneshot::Sender<()>>,
 1008}
 1009
 1010impl DelayedDebouncedEditAction {
 1011    fn new() -> DelayedDebouncedEditAction {
 1012        DelayedDebouncedEditAction {
 1013            task: None,
 1014            cancel_channel: None,
 1015        }
 1016    }
 1017
 1018    fn fire_new<F>(
 1019        &mut self,
 1020        delay: Duration,
 1021        window: &mut Window,
 1022        cx: &mut Context<Workspace>,
 1023        func: F,
 1024    ) where
 1025        F: 'static
 1026            + Send
 1027            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1028    {
 1029        if let Some(channel) = self.cancel_channel.take() {
 1030            _ = channel.send(());
 1031        }
 1032
 1033        let (sender, mut receiver) = oneshot::channel::<()>();
 1034        self.cancel_channel = Some(sender);
 1035
 1036        let previous_task = self.task.take();
 1037        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1038            let mut timer = cx.background_executor().timer(delay).fuse();
 1039            if let Some(previous_task) = previous_task {
 1040                previous_task.await;
 1041            }
 1042
 1043            futures::select_biased! {
 1044                _ = receiver => return,
 1045                    _ = timer => {}
 1046            }
 1047
 1048            if let Some(result) = workspace
 1049                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1050                .log_err()
 1051            {
 1052                result.await.log_err();
 1053            }
 1054        }));
 1055    }
 1056}
 1057
 1058pub enum Event {
 1059    PaneAdded(Entity<Pane>),
 1060    PaneRemoved,
 1061    ItemAdded {
 1062        item: Box<dyn ItemHandle>,
 1063    },
 1064    ActiveItemChanged,
 1065    ItemRemoved {
 1066        item_id: EntityId,
 1067    },
 1068    UserSavedItem {
 1069        pane: WeakEntity<Pane>,
 1070        item: Box<dyn WeakItemHandle>,
 1071        save_intent: SaveIntent,
 1072    },
 1073    ContactRequestedJoin(u64),
 1074    WorkspaceCreated(WeakEntity<Workspace>),
 1075    OpenBundledFile {
 1076        text: Cow<'static, str>,
 1077        title: &'static str,
 1078        language: &'static str,
 1079    },
 1080    ZoomChanged,
 1081    ModalOpened,
 1082}
 1083
 1084#[derive(Debug)]
 1085pub enum OpenVisible {
 1086    All,
 1087    None,
 1088    OnlyFiles,
 1089    OnlyDirectories,
 1090}
 1091
 1092enum WorkspaceLocation {
 1093    // Valid local paths or SSH project to serialize
 1094    Location(SerializedWorkspaceLocation, PathList),
 1095    // No valid location found hence clear session id
 1096    DetachFromSession,
 1097    // No valid location found to serialize
 1098    None,
 1099}
 1100
 1101type PromptForNewPath = Box<
 1102    dyn Fn(
 1103        &mut Workspace,
 1104        DirectoryLister,
 1105        &mut Window,
 1106        &mut Context<Workspace>,
 1107    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1108>;
 1109
 1110type PromptForOpenPath = Box<
 1111    dyn Fn(
 1112        &mut Workspace,
 1113        DirectoryLister,
 1114        &mut Window,
 1115        &mut Context<Workspace>,
 1116    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1117>;
 1118
 1119#[derive(Default)]
 1120struct DispatchingKeystrokes {
 1121    dispatched: HashSet<Vec<Keystroke>>,
 1122    queue: VecDeque<Keystroke>,
 1123    task: Option<Shared<Task<()>>>,
 1124}
 1125
 1126/// Collects everything project-related for a certain window opened.
 1127/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1128///
 1129/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1130/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1131/// that can be used to register a global action to be triggered from any place in the window.
 1132pub struct Workspace {
 1133    weak_self: WeakEntity<Self>,
 1134    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1135    zoomed: Option<AnyWeakView>,
 1136    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1137    zoomed_position: Option<DockPosition>,
 1138    center: PaneGroup,
 1139    left_dock: Entity<Dock>,
 1140    bottom_dock: Entity<Dock>,
 1141    right_dock: Entity<Dock>,
 1142    panes: Vec<Entity<Pane>>,
 1143    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1144    active_pane: Entity<Pane>,
 1145    last_active_center_pane: Option<WeakEntity<Pane>>,
 1146    last_active_view_id: Option<proto::ViewId>,
 1147    status_bar: Entity<StatusBar>,
 1148    modal_layer: Entity<ModalLayer>,
 1149    toast_layer: Entity<ToastLayer>,
 1150    titlebar_item: Option<AnyView>,
 1151    notifications: Notifications,
 1152    suppressed_notifications: HashSet<NotificationId>,
 1153    project: Entity<Project>,
 1154    follower_states: HashMap<CollaboratorId, FollowerState>,
 1155    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1156    window_edited: bool,
 1157    last_window_title: Option<String>,
 1158    dirty_items: HashMap<EntityId, Subscription>,
 1159    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1160    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1161    database_id: Option<WorkspaceId>,
 1162    app_state: Arc<AppState>,
 1163    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1164    _subscriptions: Vec<Subscription>,
 1165    _apply_leader_updates: Task<Result<()>>,
 1166    _observe_current_user: Task<Result<()>>,
 1167    _schedule_serialize_workspace: Option<Task<()>>,
 1168    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1169    pane_history_timestamp: Arc<AtomicUsize>,
 1170    bounds: Bounds<Pixels>,
 1171    pub centered_layout: bool,
 1172    bounds_save_task_queued: Option<Task<()>>,
 1173    on_prompt_for_new_path: Option<PromptForNewPath>,
 1174    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1175    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1176    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1177    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1178    _items_serializer: Task<Result<()>>,
 1179    session_id: Option<String>,
 1180    scheduled_tasks: Vec<Task<()>>,
 1181    last_open_dock_positions: Vec<DockPosition>,
 1182    removing: bool,
 1183}
 1184
 1185impl EventEmitter<Event> for Workspace {}
 1186
 1187#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1188pub struct ViewId {
 1189    pub creator: CollaboratorId,
 1190    pub id: u64,
 1191}
 1192
 1193pub struct FollowerState {
 1194    center_pane: Entity<Pane>,
 1195    dock_pane: Option<Entity<Pane>>,
 1196    active_view_id: Option<ViewId>,
 1197    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1198}
 1199
 1200struct FollowerView {
 1201    view: Box<dyn FollowableItemHandle>,
 1202    location: Option<proto::PanelId>,
 1203}
 1204
 1205impl Workspace {
 1206    pub fn new(
 1207        workspace_id: Option<WorkspaceId>,
 1208        project: Entity<Project>,
 1209        app_state: Arc<AppState>,
 1210        window: &mut Window,
 1211        cx: &mut Context<Self>,
 1212    ) -> Self {
 1213        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1214            match event {
 1215                project::Event::RemoteIdChanged(_) => {
 1216                    this.update_window_title(window, cx);
 1217                }
 1218
 1219                project::Event::CollaboratorLeft(peer_id) => {
 1220                    this.collaborator_left(*peer_id, window, cx);
 1221                }
 1222
 1223                project::Event::WorktreeRemoved(_) | project::Event::WorktreeAdded(_) => {
 1224                    this.update_window_title(window, cx);
 1225                    this.serialize_workspace(window, cx);
 1226                    // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 1227                    this.update_history(cx);
 1228                }
 1229
 1230                project::Event::DisconnectedFromHost => {
 1231                    this.update_window_edited(window, cx);
 1232                    let leaders_to_unfollow =
 1233                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1234                    for leader_id in leaders_to_unfollow {
 1235                        this.unfollow(leader_id, window, cx);
 1236                    }
 1237                }
 1238
 1239                project::Event::DisconnectedFromSshRemote => {
 1240                    this.update_window_edited(window, cx);
 1241                }
 1242
 1243                project::Event::Closed => {
 1244                    window.remove_window();
 1245                }
 1246
 1247                project::Event::DeletedEntry(_, entry_id) => {
 1248                    for pane in this.panes.iter() {
 1249                        pane.update(cx, |pane, cx| {
 1250                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1251                        });
 1252                    }
 1253                }
 1254
 1255                project::Event::Toast {
 1256                    notification_id,
 1257                    message,
 1258                } => this.show_notification(
 1259                    NotificationId::named(notification_id.clone()),
 1260                    cx,
 1261                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1262                ),
 1263
 1264                project::Event::HideToast { notification_id } => {
 1265                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1266                }
 1267
 1268                project::Event::LanguageServerPrompt(request) => {
 1269                    struct LanguageServerPrompt;
 1270
 1271                    let mut hasher = DefaultHasher::new();
 1272                    request.lsp_name.as_str().hash(&mut hasher);
 1273                    let id = hasher.finish();
 1274
 1275                    this.show_notification(
 1276                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1277                        cx,
 1278                        |cx| {
 1279                            cx.new(|cx| {
 1280                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1281                            })
 1282                        },
 1283                    );
 1284                }
 1285
 1286                project::Event::AgentLocationChanged => {
 1287                    this.handle_agent_location_changed(window, cx)
 1288                }
 1289
 1290                _ => {}
 1291            }
 1292            cx.notify()
 1293        })
 1294        .detach();
 1295
 1296        cx.subscribe_in(
 1297            &project.read(cx).breakpoint_store(),
 1298            window,
 1299            |workspace, _, event, window, cx| match event {
 1300                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1301                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1302                    workspace.serialize_workspace(window, cx);
 1303                }
 1304                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1305            },
 1306        )
 1307        .detach();
 1308        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1309            cx.subscribe_in(
 1310                &toolchain_store,
 1311                window,
 1312                |workspace, _, event, window, cx| match event {
 1313                    ToolchainStoreEvent::CustomToolchainsModified => {
 1314                        workspace.serialize_workspace(window, cx);
 1315                    }
 1316                    _ => {}
 1317                },
 1318            )
 1319            .detach();
 1320        }
 1321
 1322        cx.on_focus_lost(window, |this, window, cx| {
 1323            let focus_handle = this.focus_handle(cx);
 1324            window.focus(&focus_handle);
 1325        })
 1326        .detach();
 1327
 1328        let weak_handle = cx.entity().downgrade();
 1329        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1330
 1331        let center_pane = cx.new(|cx| {
 1332            let mut center_pane = Pane::new(
 1333                weak_handle.clone(),
 1334                project.clone(),
 1335                pane_history_timestamp.clone(),
 1336                None,
 1337                NewFile.boxed_clone(),
 1338                true,
 1339                window,
 1340                cx,
 1341            );
 1342            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1343            center_pane
 1344        });
 1345        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1346            .detach();
 1347
 1348        window.focus(&center_pane.focus_handle(cx));
 1349
 1350        cx.emit(Event::PaneAdded(center_pane.clone()));
 1351
 1352        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1353        app_state.workspace_store.update(cx, |store, _| {
 1354            store.workspaces.insert(window_handle);
 1355        });
 1356
 1357        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1358        let mut connection_status = app_state.client.status();
 1359        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1360            current_user.next().await;
 1361            connection_status.next().await;
 1362            let mut stream =
 1363                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1364
 1365            while stream.recv().await.is_some() {
 1366                this.update(cx, |_, cx| cx.notify())?;
 1367            }
 1368            anyhow::Ok(())
 1369        });
 1370
 1371        // All leader updates are enqueued and then processed in a single task, so
 1372        // that each asynchronous operation can be run in order.
 1373        let (leader_updates_tx, mut leader_updates_rx) =
 1374            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1375        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1376            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1377                Self::process_leader_update(&this, leader_id, update, cx)
 1378                    .await
 1379                    .log_err();
 1380            }
 1381
 1382            Ok(())
 1383        });
 1384
 1385        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1386        let modal_layer = cx.new(|_| ModalLayer::new());
 1387        let toast_layer = cx.new(|_| ToastLayer::new());
 1388        cx.subscribe(
 1389            &modal_layer,
 1390            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1391                cx.emit(Event::ModalOpened);
 1392            },
 1393        )
 1394        .detach();
 1395
 1396        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1397        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1398        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1399        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1400        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1401        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1402        let status_bar = cx.new(|cx| {
 1403            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1404            status_bar.add_left_item(left_dock_buttons, window, cx);
 1405            status_bar.add_right_item(right_dock_buttons, window, cx);
 1406            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1407            status_bar
 1408        });
 1409
 1410        let session_id = app_state.session.read(cx).id().to_owned();
 1411
 1412        let mut active_call = None;
 1413        if let Some(call) = ActiveCall::try_global(cx) {
 1414            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1415            active_call = Some((call, subscriptions));
 1416        }
 1417
 1418        let (serializable_items_tx, serializable_items_rx) =
 1419            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1420        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1421            Self::serialize_items(&this, serializable_items_rx, cx).await
 1422        });
 1423
 1424        let subscriptions = vec![
 1425            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1426            cx.observe_window_bounds(window, move |this, window, cx| {
 1427                if this.bounds_save_task_queued.is_some() {
 1428                    return;
 1429                }
 1430                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1431                    cx.background_executor()
 1432                        .timer(Duration::from_millis(100))
 1433                        .await;
 1434                    this.update_in(cx, |this, window, cx| {
 1435                        if let Some(display) = window.display(cx)
 1436                            && let Ok(display_uuid) = display.uuid()
 1437                        {
 1438                            let window_bounds = window.inner_window_bounds();
 1439                            if let Some(database_id) = workspace_id {
 1440                                cx.background_executor()
 1441                                    .spawn(DB.set_window_open_status(
 1442                                        database_id,
 1443                                        SerializedWindowBounds(window_bounds),
 1444                                        display_uuid,
 1445                                    ))
 1446                                    .detach_and_log_err(cx);
 1447                            }
 1448                        }
 1449                        this.bounds_save_task_queued.take();
 1450                    })
 1451                    .ok();
 1452                }));
 1453                cx.notify();
 1454            }),
 1455            cx.observe_window_appearance(window, |_, window, cx| {
 1456                let window_appearance = window.appearance();
 1457
 1458                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1459
 1460                GlobalTheme::reload_theme(cx);
 1461                GlobalTheme::reload_icon_theme(cx);
 1462            }),
 1463            cx.on_release(move |this, cx| {
 1464                this.app_state.workspace_store.update(cx, move |store, _| {
 1465                    store.workspaces.remove(&window_handle);
 1466                })
 1467            }),
 1468        ];
 1469
 1470        cx.defer_in(window, |this, window, cx| {
 1471            this.update_window_title(window, cx);
 1472            this.show_initial_notifications(cx);
 1473        });
 1474        Workspace {
 1475            weak_self: weak_handle.clone(),
 1476            zoomed: None,
 1477            zoomed_position: None,
 1478            previous_dock_drag_coordinates: None,
 1479            center: PaneGroup::new(center_pane.clone()),
 1480            panes: vec![center_pane.clone()],
 1481            panes_by_item: Default::default(),
 1482            active_pane: center_pane.clone(),
 1483            last_active_center_pane: Some(center_pane.downgrade()),
 1484            last_active_view_id: None,
 1485            status_bar,
 1486            modal_layer,
 1487            toast_layer,
 1488            titlebar_item: None,
 1489            notifications: Notifications::default(),
 1490            suppressed_notifications: HashSet::default(),
 1491            left_dock,
 1492            bottom_dock,
 1493            right_dock,
 1494            project: project.clone(),
 1495            follower_states: Default::default(),
 1496            last_leaders_by_pane: Default::default(),
 1497            dispatching_keystrokes: Default::default(),
 1498            window_edited: false,
 1499            last_window_title: None,
 1500            dirty_items: Default::default(),
 1501            active_call,
 1502            database_id: workspace_id,
 1503            app_state,
 1504            _observe_current_user,
 1505            _apply_leader_updates,
 1506            _schedule_serialize_workspace: None,
 1507            _schedule_serialize_ssh_paths: None,
 1508            leader_updates_tx,
 1509            _subscriptions: subscriptions,
 1510            pane_history_timestamp,
 1511            workspace_actions: Default::default(),
 1512            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1513            bounds: Default::default(),
 1514            centered_layout: false,
 1515            bounds_save_task_queued: None,
 1516            on_prompt_for_new_path: None,
 1517            on_prompt_for_open_path: None,
 1518            terminal_provider: None,
 1519            debugger_provider: None,
 1520            serializable_items_tx,
 1521            _items_serializer,
 1522            session_id: Some(session_id),
 1523
 1524            scheduled_tasks: Vec::new(),
 1525            last_open_dock_positions: Vec::new(),
 1526            removing: false,
 1527        }
 1528    }
 1529
 1530    pub fn new_local(
 1531        abs_paths: Vec<PathBuf>,
 1532        app_state: Arc<AppState>,
 1533        requesting_window: Option<WindowHandle<Workspace>>,
 1534        env: Option<HashMap<String, String>>,
 1535        cx: &mut App,
 1536    ) -> Task<
 1537        anyhow::Result<(
 1538            WindowHandle<Workspace>,
 1539            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1540        )>,
 1541    > {
 1542        let project_handle = Project::local(
 1543            app_state.client.clone(),
 1544            app_state.node_runtime.clone(),
 1545            app_state.user_store.clone(),
 1546            app_state.languages.clone(),
 1547            app_state.fs.clone(),
 1548            env,
 1549            cx,
 1550        );
 1551
 1552        cx.spawn(async move |cx| {
 1553            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1554            for path in abs_paths.into_iter() {
 1555                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1556                    paths_to_open.push(canonical)
 1557                } else {
 1558                    paths_to_open.push(path)
 1559                }
 1560            }
 1561
 1562            let serialized_workspace =
 1563                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1564
 1565            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1566                paths_to_open = paths.ordered_paths().cloned().collect();
 1567                if !paths.is_lexicographically_ordered() {
 1568                    project_handle
 1569                        .update(cx, |project, cx| {
 1570                            project.set_worktrees_reordered(true, cx);
 1571                        })
 1572                        .log_err();
 1573                }
 1574            }
 1575
 1576            // Get project paths for all of the abs_paths
 1577            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1578                Vec::with_capacity(paths_to_open.len());
 1579
 1580            for path in paths_to_open.into_iter() {
 1581                if let Some((_, project_entry)) = cx
 1582                    .update(|cx| {
 1583                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1584                    })?
 1585                    .await
 1586                    .log_err()
 1587                {
 1588                    project_paths.push((path, Some(project_entry)));
 1589                } else {
 1590                    project_paths.push((path, None));
 1591                }
 1592            }
 1593
 1594            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1595                serialized_workspace.id
 1596            } else {
 1597                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1598            };
 1599
 1600            let toolchains = DB.toolchains(workspace_id).await?;
 1601
 1602            for (toolchain, worktree_id, path) in toolchains {
 1603                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1604                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1605                    continue;
 1606                }
 1607
 1608                project_handle
 1609                    .update(cx, |this, cx| {
 1610                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1611                    })?
 1612                    .await;
 1613            }
 1614            if let Some(workspace) = serialized_workspace.as_ref() {
 1615                project_handle.update(cx, |this, cx| {
 1616                    for (scope, toolchains) in &workspace.user_toolchains {
 1617                        for toolchain in toolchains {
 1618                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1619                        }
 1620                    }
 1621                })?;
 1622            }
 1623
 1624            let window = if let Some(window) = requesting_window {
 1625                let centered_layout = serialized_workspace
 1626                    .as_ref()
 1627                    .map(|w| w.centered_layout)
 1628                    .unwrap_or(false);
 1629
 1630                cx.update_window(window.into(), |_, window, cx| {
 1631                    window.replace_root(cx, |window, cx| {
 1632                        let mut workspace = Workspace::new(
 1633                            Some(workspace_id),
 1634                            project_handle.clone(),
 1635                            app_state.clone(),
 1636                            window,
 1637                            cx,
 1638                        );
 1639
 1640                        workspace.centered_layout = centered_layout;
 1641                        workspace
 1642                    });
 1643                })?;
 1644                window
 1645            } else {
 1646                let window_bounds_override = window_bounds_env_override();
 1647
 1648                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1649                    (Some(WindowBounds::Windowed(bounds)), None)
 1650                } else {
 1651                    let restorable_bounds = serialized_workspace
 1652                        .as_ref()
 1653                        .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 1654                        .or_else(|| {
 1655                            let (display, window_bounds) = DB.last_window().log_err()?;
 1656                            Some((display?, window_bounds?))
 1657                        });
 1658
 1659                    if let Some((serialized_display, serialized_status)) = restorable_bounds {
 1660                        (Some(serialized_status.0), Some(serialized_display))
 1661                    } else {
 1662                        (None, None)
 1663                    }
 1664                };
 1665
 1666                // Use the serialized workspace to construct the new window
 1667                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1668                options.window_bounds = window_bounds;
 1669                let centered_layout = serialized_workspace
 1670                    .as_ref()
 1671                    .map(|w| w.centered_layout)
 1672                    .unwrap_or(false);
 1673                cx.open_window(options, {
 1674                    let app_state = app_state.clone();
 1675                    let project_handle = project_handle.clone();
 1676                    move |window, cx| {
 1677                        cx.new(|cx| {
 1678                            let mut workspace = Workspace::new(
 1679                                Some(workspace_id),
 1680                                project_handle,
 1681                                app_state,
 1682                                window,
 1683                                cx,
 1684                            );
 1685                            workspace.centered_layout = centered_layout;
 1686                            workspace
 1687                        })
 1688                    }
 1689                })?
 1690            };
 1691
 1692            notify_if_database_failed(window, cx);
 1693            let opened_items = window
 1694                .update(cx, |_workspace, window, cx| {
 1695                    open_items(serialized_workspace, project_paths, window, cx)
 1696                })?
 1697                .await
 1698                .unwrap_or_default();
 1699
 1700            window
 1701                .update(cx, |workspace, window, cx| {
 1702                    window.activate_window();
 1703                    workspace.update_history(cx);
 1704                })
 1705                .log_err();
 1706            Ok((window, opened_items))
 1707        })
 1708    }
 1709
 1710    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1711        self.weak_self.clone()
 1712    }
 1713
 1714    pub fn left_dock(&self) -> &Entity<Dock> {
 1715        &self.left_dock
 1716    }
 1717
 1718    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1719        &self.bottom_dock
 1720    }
 1721
 1722    pub fn set_bottom_dock_layout(
 1723        &mut self,
 1724        layout: BottomDockLayout,
 1725        window: &mut Window,
 1726        cx: &mut Context<Self>,
 1727    ) {
 1728        let fs = self.project().read(cx).fs();
 1729        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1730            content.workspace.bottom_dock_layout = Some(layout);
 1731        });
 1732
 1733        cx.notify();
 1734        self.serialize_workspace(window, cx);
 1735    }
 1736
 1737    pub fn right_dock(&self) -> &Entity<Dock> {
 1738        &self.right_dock
 1739    }
 1740
 1741    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1742        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1743    }
 1744
 1745    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1746        match position {
 1747            DockPosition::Left => &self.left_dock,
 1748            DockPosition::Bottom => &self.bottom_dock,
 1749            DockPosition::Right => &self.right_dock,
 1750        }
 1751    }
 1752
 1753    pub fn is_edited(&self) -> bool {
 1754        self.window_edited
 1755    }
 1756
 1757    pub fn add_panel<T: Panel>(
 1758        &mut self,
 1759        panel: Entity<T>,
 1760        window: &mut Window,
 1761        cx: &mut Context<Self>,
 1762    ) {
 1763        let focus_handle = panel.panel_focus_handle(cx);
 1764        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1765            .detach();
 1766
 1767        let dock_position = panel.position(window, cx);
 1768        let dock = self.dock_at_position(dock_position);
 1769
 1770        dock.update(cx, |dock, cx| {
 1771            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1772        });
 1773    }
 1774
 1775    pub fn remove_panel<T: Panel>(
 1776        &mut self,
 1777        panel: &Entity<T>,
 1778        window: &mut Window,
 1779        cx: &mut Context<Self>,
 1780    ) {
 1781        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1782            dock.update(cx, |dock, cx| {
 1783                dock.remove_panel(panel, window, cx);
 1784            })
 1785        }
 1786    }
 1787
 1788    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1789        &self.status_bar
 1790    }
 1791
 1792    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1793        StatusBarSettings::get_global(cx).show
 1794    }
 1795
 1796    pub fn app_state(&self) -> &Arc<AppState> {
 1797        &self.app_state
 1798    }
 1799
 1800    pub fn user_store(&self) -> &Entity<UserStore> {
 1801        &self.app_state.user_store
 1802    }
 1803
 1804    pub fn project(&self) -> &Entity<Project> {
 1805        &self.project
 1806    }
 1807
 1808    pub fn path_style(&self, cx: &App) -> PathStyle {
 1809        self.project.read(cx).path_style(cx)
 1810    }
 1811
 1812    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1813        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1814
 1815        for pane_handle in &self.panes {
 1816            let pane = pane_handle.read(cx);
 1817
 1818            for entry in pane.activation_history() {
 1819                history.insert(
 1820                    entry.entity_id,
 1821                    history
 1822                        .get(&entry.entity_id)
 1823                        .cloned()
 1824                        .unwrap_or(0)
 1825                        .max(entry.timestamp),
 1826                );
 1827            }
 1828        }
 1829
 1830        history
 1831    }
 1832
 1833    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1834        let mut recent_item: Option<Entity<T>> = None;
 1835        let mut recent_timestamp = 0;
 1836        for pane_handle in &self.panes {
 1837            let pane = pane_handle.read(cx);
 1838            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1839                pane.items().map(|item| (item.item_id(), item)).collect();
 1840            for entry in pane.activation_history() {
 1841                if entry.timestamp > recent_timestamp
 1842                    && let Some(&item) = item_map.get(&entry.entity_id)
 1843                    && let Some(typed_item) = item.act_as::<T>(cx)
 1844                {
 1845                    recent_timestamp = entry.timestamp;
 1846                    recent_item = Some(typed_item);
 1847                }
 1848            }
 1849        }
 1850        recent_item
 1851    }
 1852
 1853    pub fn recent_navigation_history_iter(
 1854        &self,
 1855        cx: &App,
 1856    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> {
 1857        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1858        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1859
 1860        for pane in &self.panes {
 1861            let pane = pane.read(cx);
 1862
 1863            pane.nav_history()
 1864                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1865                    if let Some(fs_path) = &fs_path {
 1866                        abs_paths_opened
 1867                            .entry(fs_path.clone())
 1868                            .or_default()
 1869                            .insert(project_path.clone());
 1870                    }
 1871                    let timestamp = entry.timestamp;
 1872                    match history.entry(project_path) {
 1873                        hash_map::Entry::Occupied(mut entry) => {
 1874                            let (_, old_timestamp) = entry.get();
 1875                            if &timestamp > old_timestamp {
 1876                                entry.insert((fs_path, timestamp));
 1877                            }
 1878                        }
 1879                        hash_map::Entry::Vacant(entry) => {
 1880                            entry.insert((fs_path, timestamp));
 1881                        }
 1882                    }
 1883                });
 1884
 1885            if let Some(item) = pane.active_item()
 1886                && let Some(project_path) = item.project_path(cx)
 1887            {
 1888                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 1889
 1890                if let Some(fs_path) = &fs_path {
 1891                    abs_paths_opened
 1892                        .entry(fs_path.clone())
 1893                        .or_default()
 1894                        .insert(project_path.clone());
 1895                }
 1896
 1897                history.insert(project_path, (fs_path, std::usize::MAX));
 1898            }
 1899        }
 1900
 1901        history
 1902            .into_iter()
 1903            .sorted_by_key(|(_, (_, order))| *order)
 1904            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 1905            .rev()
 1906            .filter(move |(history_path, abs_path)| {
 1907                let latest_project_path_opened = abs_path
 1908                    .as_ref()
 1909                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 1910                    .and_then(|project_paths| {
 1911                        project_paths
 1912                            .iter()
 1913                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 1914                    });
 1915
 1916                latest_project_path_opened.is_none_or(|path| path == history_path)
 1917            })
 1918    }
 1919
 1920    pub fn recent_navigation_history(
 1921        &self,
 1922        limit: Option<usize>,
 1923        cx: &App,
 1924    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 1925        self.recent_navigation_history_iter(cx)
 1926            .take(limit.unwrap_or(usize::MAX))
 1927            .collect()
 1928    }
 1929
 1930    fn navigate_history(
 1931        &mut self,
 1932        pane: WeakEntity<Pane>,
 1933        mode: NavigationMode,
 1934        window: &mut Window,
 1935        cx: &mut Context<Workspace>,
 1936    ) -> Task<Result<()>> {
 1937        let to_load = if let Some(pane) = pane.upgrade() {
 1938            pane.update(cx, |pane, cx| {
 1939                window.focus(&pane.focus_handle(cx));
 1940                loop {
 1941                    // Retrieve the weak item handle from the history.
 1942                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 1943
 1944                    // If the item is still present in this pane, then activate it.
 1945                    if let Some(index) = entry
 1946                        .item
 1947                        .upgrade()
 1948                        .and_then(|v| pane.index_for_item(v.as_ref()))
 1949                    {
 1950                        let prev_active_item_index = pane.active_item_index();
 1951                        pane.nav_history_mut().set_mode(mode);
 1952                        pane.activate_item(index, true, true, window, cx);
 1953                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1954
 1955                        let mut navigated = prev_active_item_index != pane.active_item_index();
 1956                        if let Some(data) = entry.data {
 1957                            navigated |= pane.active_item()?.navigate(data, window, cx);
 1958                        }
 1959
 1960                        if navigated {
 1961                            break None;
 1962                        }
 1963                    } else {
 1964                        // If the item is no longer present in this pane, then retrieve its
 1965                        // path info in order to reopen it.
 1966                        break pane
 1967                            .nav_history()
 1968                            .path_for_item(entry.item.id())
 1969                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 1970                    }
 1971                }
 1972            })
 1973        } else {
 1974            None
 1975        };
 1976
 1977        if let Some((project_path, abs_path, entry)) = to_load {
 1978            // If the item was no longer present, then load it again from its previous path, first try the local path
 1979            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 1980
 1981            cx.spawn_in(window, async move  |workspace, cx| {
 1982                let open_by_project_path = open_by_project_path.await;
 1983                let mut navigated = false;
 1984                match open_by_project_path
 1985                    .with_context(|| format!("Navigating to {project_path:?}"))
 1986                {
 1987                    Ok((project_entry_id, build_item)) => {
 1988                        let prev_active_item_id = pane.update(cx, |pane, _| {
 1989                            pane.nav_history_mut().set_mode(mode);
 1990                            pane.active_item().map(|p| p.item_id())
 1991                        })?;
 1992
 1993                        pane.update_in(cx, |pane, window, cx| {
 1994                            let item = pane.open_item(
 1995                                project_entry_id,
 1996                                project_path,
 1997                                true,
 1998                                entry.is_preview,
 1999                                true,
 2000                                None,
 2001                                window, cx,
 2002                                build_item,
 2003                            );
 2004                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2005                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2006                            if let Some(data) = entry.data {
 2007                                navigated |= item.navigate(data, window, cx);
 2008                            }
 2009                        })?;
 2010                    }
 2011                    Err(open_by_project_path_e) => {
 2012                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2013                        // and its worktree is now dropped
 2014                        if let Some(abs_path) = abs_path {
 2015                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2016                                pane.nav_history_mut().set_mode(mode);
 2017                                pane.active_item().map(|p| p.item_id())
 2018                            })?;
 2019                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2020                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2021                            })?;
 2022                            match open_by_abs_path
 2023                                .await
 2024                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2025                            {
 2026                                Ok(item) => {
 2027                                    pane.update_in(cx, |pane, window, cx| {
 2028                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2029                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2030                                        if let Some(data) = entry.data {
 2031                                            navigated |= item.navigate(data, window, cx);
 2032                                        }
 2033                                    })?;
 2034                                }
 2035                                Err(open_by_abs_path_e) => {
 2036                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2037                                }
 2038                            }
 2039                        }
 2040                    }
 2041                }
 2042
 2043                if !navigated {
 2044                    workspace
 2045                        .update_in(cx, |workspace, window, cx| {
 2046                            Self::navigate_history(workspace, pane, mode, window, cx)
 2047                        })?
 2048                        .await?;
 2049                }
 2050
 2051                Ok(())
 2052            })
 2053        } else {
 2054            Task::ready(Ok(()))
 2055        }
 2056    }
 2057
 2058    pub fn go_back(
 2059        &mut self,
 2060        pane: WeakEntity<Pane>,
 2061        window: &mut Window,
 2062        cx: &mut Context<Workspace>,
 2063    ) -> Task<Result<()>> {
 2064        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2065    }
 2066
 2067    pub fn go_forward(
 2068        &mut self,
 2069        pane: WeakEntity<Pane>,
 2070        window: &mut Window,
 2071        cx: &mut Context<Workspace>,
 2072    ) -> Task<Result<()>> {
 2073        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2074    }
 2075
 2076    pub fn reopen_closed_item(
 2077        &mut self,
 2078        window: &mut Window,
 2079        cx: &mut Context<Workspace>,
 2080    ) -> Task<Result<()>> {
 2081        self.navigate_history(
 2082            self.active_pane().downgrade(),
 2083            NavigationMode::ReopeningClosedItem,
 2084            window,
 2085            cx,
 2086        )
 2087    }
 2088
 2089    pub fn client(&self) -> &Arc<Client> {
 2090        &self.app_state.client
 2091    }
 2092
 2093    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2094        self.titlebar_item = Some(item);
 2095        cx.notify();
 2096    }
 2097
 2098    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2099        self.on_prompt_for_new_path = Some(prompt)
 2100    }
 2101
 2102    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2103        self.on_prompt_for_open_path = Some(prompt)
 2104    }
 2105
 2106    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2107        self.terminal_provider = Some(Box::new(provider));
 2108    }
 2109
 2110    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2111        self.debugger_provider = Some(Arc::new(provider));
 2112    }
 2113
 2114    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2115        self.debugger_provider.clone()
 2116    }
 2117
 2118    pub fn prompt_for_open_path(
 2119        &mut self,
 2120        path_prompt_options: PathPromptOptions,
 2121        lister: DirectoryLister,
 2122        window: &mut Window,
 2123        cx: &mut Context<Self>,
 2124    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2125        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2126            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2127            let rx = prompt(self, lister, window, cx);
 2128            self.on_prompt_for_open_path = Some(prompt);
 2129            rx
 2130        } else {
 2131            let (tx, rx) = oneshot::channel();
 2132            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2133
 2134            cx.spawn_in(window, async move |workspace, cx| {
 2135                let Ok(result) = abs_path.await else {
 2136                    return Ok(());
 2137                };
 2138
 2139                match result {
 2140                    Ok(result) => {
 2141                        tx.send(result).ok();
 2142                    }
 2143                    Err(err) => {
 2144                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2145                            workspace.show_portal_error(err.to_string(), cx);
 2146                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2147                            let rx = prompt(workspace, lister, window, cx);
 2148                            workspace.on_prompt_for_open_path = Some(prompt);
 2149                            rx
 2150                        })?;
 2151                        if let Ok(path) = rx.await {
 2152                            tx.send(path).ok();
 2153                        }
 2154                    }
 2155                };
 2156                anyhow::Ok(())
 2157            })
 2158            .detach();
 2159
 2160            rx
 2161        }
 2162    }
 2163
 2164    pub fn prompt_for_new_path(
 2165        &mut self,
 2166        lister: DirectoryLister,
 2167        suggested_name: Option<String>,
 2168        window: &mut Window,
 2169        cx: &mut Context<Self>,
 2170    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2171        if self.project.read(cx).is_via_collab()
 2172            || self.project.read(cx).is_via_remote_server()
 2173            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2174        {
 2175            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2176            let rx = prompt(self, lister, window, cx);
 2177            self.on_prompt_for_new_path = Some(prompt);
 2178            return rx;
 2179        }
 2180
 2181        let (tx, rx) = oneshot::channel();
 2182        cx.spawn_in(window, async move |workspace, cx| {
 2183            let abs_path = workspace.update(cx, |workspace, cx| {
 2184                let relative_to = workspace
 2185                    .most_recent_active_path(cx)
 2186                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2187                    .or_else(|| {
 2188                        let project = workspace.project.read(cx);
 2189                        project.visible_worktrees(cx).find_map(|worktree| {
 2190                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2191                        })
 2192                    })
 2193                    .or_else(std::env::home_dir)
 2194                    .unwrap_or_else(|| PathBuf::from(""));
 2195                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2196            })?;
 2197            let abs_path = match abs_path.await? {
 2198                Ok(path) => path,
 2199                Err(err) => {
 2200                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2201                        workspace.show_portal_error(err.to_string(), cx);
 2202
 2203                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2204                        let rx = prompt(workspace, lister, window, cx);
 2205                        workspace.on_prompt_for_new_path = Some(prompt);
 2206                        rx
 2207                    })?;
 2208                    if let Ok(path) = rx.await {
 2209                        tx.send(path).ok();
 2210                    }
 2211                    return anyhow::Ok(());
 2212                }
 2213            };
 2214
 2215            tx.send(abs_path.map(|path| vec![path])).ok();
 2216            anyhow::Ok(())
 2217        })
 2218        .detach();
 2219
 2220        rx
 2221    }
 2222
 2223    pub fn titlebar_item(&self) -> Option<AnyView> {
 2224        self.titlebar_item.clone()
 2225    }
 2226
 2227    /// Call the given callback with a workspace whose project is local.
 2228    ///
 2229    /// If the given workspace has a local project, then it will be passed
 2230    /// to the callback. Otherwise, a new empty window will be created.
 2231    pub fn with_local_workspace<T, F>(
 2232        &mut self,
 2233        window: &mut Window,
 2234        cx: &mut Context<Self>,
 2235        callback: F,
 2236    ) -> Task<Result<T>>
 2237    where
 2238        T: 'static,
 2239        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2240    {
 2241        if self.project.read(cx).is_local() {
 2242            Task::ready(Ok(callback(self, window, cx)))
 2243        } else {
 2244            let env = self.project.read(cx).cli_environment(cx);
 2245            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, cx);
 2246            cx.spawn_in(window, async move |_vh, cx| {
 2247                let (workspace, _) = task.await?;
 2248                workspace.update(cx, callback)
 2249            })
 2250        }
 2251    }
 2252
 2253    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2254        self.project.read(cx).worktrees(cx)
 2255    }
 2256
 2257    pub fn visible_worktrees<'a>(
 2258        &self,
 2259        cx: &'a App,
 2260    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2261        self.project.read(cx).visible_worktrees(cx)
 2262    }
 2263
 2264    #[cfg(any(test, feature = "test-support"))]
 2265    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2266        let futures = self
 2267            .worktrees(cx)
 2268            .filter_map(|worktree| worktree.read(cx).as_local())
 2269            .map(|worktree| worktree.scan_complete())
 2270            .collect::<Vec<_>>();
 2271        async move {
 2272            for future in futures {
 2273                future.await;
 2274            }
 2275        }
 2276    }
 2277
 2278    pub fn close_global(cx: &mut App) {
 2279        cx.defer(|cx| {
 2280            cx.windows().iter().find(|window| {
 2281                window
 2282                    .update(cx, |_, window, _| {
 2283                        if window.is_window_active() {
 2284                            //This can only get called when the window's project connection has been lost
 2285                            //so we don't need to prompt the user for anything and instead just close the window
 2286                            window.remove_window();
 2287                            true
 2288                        } else {
 2289                            false
 2290                        }
 2291                    })
 2292                    .unwrap_or(false)
 2293            });
 2294        });
 2295    }
 2296
 2297    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2298        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2299        cx.spawn_in(window, async move |_, cx| {
 2300            if prepare.await? {
 2301                cx.update(|window, _cx| window.remove_window())?;
 2302            }
 2303            anyhow::Ok(())
 2304        })
 2305        .detach_and_log_err(cx)
 2306    }
 2307
 2308    pub fn move_focused_panel_to_next_position(
 2309        &mut self,
 2310        _: &MoveFocusedPanelToNextPosition,
 2311        window: &mut Window,
 2312        cx: &mut Context<Self>,
 2313    ) {
 2314        let docks = self.all_docks();
 2315        let active_dock = docks
 2316            .into_iter()
 2317            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2318
 2319        if let Some(dock) = active_dock {
 2320            dock.update(cx, |dock, cx| {
 2321                let active_panel = dock
 2322                    .active_panel()
 2323                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2324
 2325                if let Some(panel) = active_panel {
 2326                    panel.move_to_next_position(window, cx);
 2327                }
 2328            })
 2329        }
 2330    }
 2331
 2332    pub fn prepare_to_close(
 2333        &mut self,
 2334        close_intent: CloseIntent,
 2335        window: &mut Window,
 2336        cx: &mut Context<Self>,
 2337    ) -> Task<Result<bool>> {
 2338        let active_call = self.active_call().cloned();
 2339
 2340        cx.spawn_in(window, async move |this, cx| {
 2341            this.update(cx, |this, _| {
 2342                if close_intent == CloseIntent::CloseWindow {
 2343                    this.removing = true;
 2344                }
 2345            })?;
 2346
 2347            let workspace_count = cx.update(|_window, cx| {
 2348                cx.windows()
 2349                    .iter()
 2350                    .filter(|window| window.downcast::<Workspace>().is_some())
 2351                    .count()
 2352            })?;
 2353
 2354            #[cfg(target_os = "macos")]
 2355            let save_last_workspace = false;
 2356
 2357            // On Linux and Windows, closing the last window should restore the last workspace.
 2358            #[cfg(not(target_os = "macos"))]
 2359            let save_last_workspace = {
 2360                let remaining_workspaces = cx.update(|_window, cx| {
 2361                    cx.windows()
 2362                        .iter()
 2363                        .filter_map(|window| window.downcast::<Workspace>())
 2364                        .filter_map(|workspace| {
 2365                            workspace
 2366                                .update(cx, |workspace, _, _| workspace.removing)
 2367                                .ok()
 2368                        })
 2369                        .filter(|removing| !removing)
 2370                        .count()
 2371                })?;
 2372
 2373                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2374            };
 2375
 2376            if let Some(active_call) = active_call
 2377                && workspace_count == 1
 2378                && active_call.read_with(cx, |call, _| call.room().is_some())?
 2379            {
 2380                if close_intent == CloseIntent::CloseWindow {
 2381                    let answer = cx.update(|window, cx| {
 2382                        window.prompt(
 2383                            PromptLevel::Warning,
 2384                            "Do you want to leave the current call?",
 2385                            None,
 2386                            &["Close window and hang up", "Cancel"],
 2387                            cx,
 2388                        )
 2389                    })?;
 2390
 2391                    if answer.await.log_err() == Some(1) {
 2392                        return anyhow::Ok(false);
 2393                    } else {
 2394                        active_call
 2395                            .update(cx, |call, cx| call.hang_up(cx))?
 2396                            .await
 2397                            .log_err();
 2398                    }
 2399                }
 2400                if close_intent == CloseIntent::ReplaceWindow {
 2401                    _ = active_call.update(cx, |this, cx| {
 2402                        let workspace = cx
 2403                            .windows()
 2404                            .iter()
 2405                            .filter_map(|window| window.downcast::<Workspace>())
 2406                            .next()
 2407                            .unwrap();
 2408                        let project = workspace.read(cx)?.project.clone();
 2409                        if project.read(cx).is_shared() {
 2410                            this.unshare_project(project, cx)?;
 2411                        }
 2412                        Ok::<_, anyhow::Error>(())
 2413                    })?;
 2414                }
 2415            }
 2416
 2417            let save_result = this
 2418                .update_in(cx, |this, window, cx| {
 2419                    this.save_all_internal(SaveIntent::Close, window, cx)
 2420                })?
 2421                .await;
 2422
 2423            // If we're not quitting, but closing, we remove the workspace from
 2424            // the current session.
 2425            if close_intent != CloseIntent::Quit
 2426                && !save_last_workspace
 2427                && save_result.as_ref().is_ok_and(|&res| res)
 2428            {
 2429                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2430                    .await;
 2431            }
 2432
 2433            save_result
 2434        })
 2435    }
 2436
 2437    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2438        self.save_all_internal(
 2439            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2440            window,
 2441            cx,
 2442        )
 2443        .detach_and_log_err(cx);
 2444    }
 2445
 2446    fn send_keystrokes(
 2447        &mut self,
 2448        action: &SendKeystrokes,
 2449        window: &mut Window,
 2450        cx: &mut Context<Self>,
 2451    ) {
 2452        let keystrokes: Vec<Keystroke> = action
 2453            .0
 2454            .split(' ')
 2455            .flat_map(|k| Keystroke::parse(k).log_err())
 2456            .collect();
 2457        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2458    }
 2459
 2460    pub fn send_keystrokes_impl(
 2461        &mut self,
 2462        keystrokes: Vec<Keystroke>,
 2463        window: &mut Window,
 2464        cx: &mut Context<Self>,
 2465    ) -> Shared<Task<()>> {
 2466        let mut state = self.dispatching_keystrokes.borrow_mut();
 2467        if !state.dispatched.insert(keystrokes.clone()) {
 2468            cx.propagate();
 2469            return state.task.clone().unwrap();
 2470        }
 2471
 2472        state.queue.extend(keystrokes);
 2473
 2474        let keystrokes = self.dispatching_keystrokes.clone();
 2475        if state.task.is_none() {
 2476            state.task = Some(
 2477                window
 2478                    .spawn(cx, async move |cx| {
 2479                        // limit to 100 keystrokes to avoid infinite recursion.
 2480                        for _ in 0..100 {
 2481                            let mut state = keystrokes.borrow_mut();
 2482                            let Some(keystroke) = state.queue.pop_front() else {
 2483                                state.dispatched.clear();
 2484                                state.task.take();
 2485                                return;
 2486                            };
 2487                            drop(state);
 2488                            cx.update(|window, cx| {
 2489                                let focused = window.focused(cx);
 2490                                window.dispatch_keystroke(keystroke.clone(), cx);
 2491                                if window.focused(cx) != focused {
 2492                                    // dispatch_keystroke may cause the focus to change.
 2493                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2494                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2495                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2496                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2497                                    // )
 2498                                    window.draw(cx).clear();
 2499                                }
 2500                            })
 2501                            .ok();
 2502                        }
 2503
 2504                        *keystrokes.borrow_mut() = Default::default();
 2505                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2506                    })
 2507                    .shared(),
 2508            );
 2509        }
 2510        state.task.clone().unwrap()
 2511    }
 2512
 2513    fn save_all_internal(
 2514        &mut self,
 2515        mut save_intent: SaveIntent,
 2516        window: &mut Window,
 2517        cx: &mut Context<Self>,
 2518    ) -> Task<Result<bool>> {
 2519        if self.project.read(cx).is_disconnected(cx) {
 2520            return Task::ready(Ok(true));
 2521        }
 2522        let dirty_items = self
 2523            .panes
 2524            .iter()
 2525            .flat_map(|pane| {
 2526                pane.read(cx).items().filter_map(|item| {
 2527                    if item.is_dirty(cx) {
 2528                        item.tab_content_text(0, cx);
 2529                        Some((pane.downgrade(), item.boxed_clone()))
 2530                    } else {
 2531                        None
 2532                    }
 2533                })
 2534            })
 2535            .collect::<Vec<_>>();
 2536
 2537        let project = self.project.clone();
 2538        cx.spawn_in(window, async move |workspace, cx| {
 2539            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2540                let (serialize_tasks, remaining_dirty_items) =
 2541                    workspace.update_in(cx, |workspace, window, cx| {
 2542                        let mut remaining_dirty_items = Vec::new();
 2543                        let mut serialize_tasks = Vec::new();
 2544                        for (pane, item) in dirty_items {
 2545                            if let Some(task) = item
 2546                                .to_serializable_item_handle(cx)
 2547                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2548                            {
 2549                                serialize_tasks.push(task);
 2550                            } else {
 2551                                remaining_dirty_items.push((pane, item));
 2552                            }
 2553                        }
 2554                        (serialize_tasks, remaining_dirty_items)
 2555                    })?;
 2556
 2557                futures::future::try_join_all(serialize_tasks).await?;
 2558
 2559                if remaining_dirty_items.len() > 1 {
 2560                    let answer = workspace.update_in(cx, |_, window, cx| {
 2561                        let detail = Pane::file_names_for_prompt(
 2562                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2563                            cx,
 2564                        );
 2565                        window.prompt(
 2566                            PromptLevel::Warning,
 2567                            "Do you want to save all changes in the following files?",
 2568                            Some(&detail),
 2569                            &["Save all", "Discard all", "Cancel"],
 2570                            cx,
 2571                        )
 2572                    })?;
 2573                    match answer.await.log_err() {
 2574                        Some(0) => save_intent = SaveIntent::SaveAll,
 2575                        Some(1) => save_intent = SaveIntent::Skip,
 2576                        Some(2) => return Ok(false),
 2577                        _ => {}
 2578                    }
 2579                }
 2580
 2581                remaining_dirty_items
 2582            } else {
 2583                dirty_items
 2584            };
 2585
 2586            for (pane, item) in dirty_items {
 2587                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2588                    (
 2589                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2590                        item.project_entry_ids(cx),
 2591                    )
 2592                })?;
 2593                if (singleton || !project_entry_ids.is_empty())
 2594                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2595                {
 2596                    return Ok(false);
 2597                }
 2598            }
 2599            Ok(true)
 2600        })
 2601    }
 2602
 2603    pub fn open_workspace_for_paths(
 2604        &mut self,
 2605        replace_current_window: bool,
 2606        paths: Vec<PathBuf>,
 2607        window: &mut Window,
 2608        cx: &mut Context<Self>,
 2609    ) -> Task<Result<()>> {
 2610        let window_handle = window.window_handle().downcast::<Self>();
 2611        let is_remote = self.project.read(cx).is_via_collab();
 2612        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2613        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2614
 2615        let window_to_replace = if replace_current_window {
 2616            window_handle
 2617        } else if is_remote || has_worktree || has_dirty_items {
 2618            None
 2619        } else {
 2620            window_handle
 2621        };
 2622        let app_state = self.app_state.clone();
 2623
 2624        cx.spawn(async move |_, cx| {
 2625            cx.update(|cx| {
 2626                open_paths(
 2627                    &paths,
 2628                    app_state,
 2629                    OpenOptions {
 2630                        replace_window: window_to_replace,
 2631                        ..Default::default()
 2632                    },
 2633                    cx,
 2634                )
 2635            })?
 2636            .await?;
 2637            Ok(())
 2638        })
 2639    }
 2640
 2641    #[allow(clippy::type_complexity)]
 2642    pub fn open_paths(
 2643        &mut self,
 2644        mut abs_paths: Vec<PathBuf>,
 2645        options: OpenOptions,
 2646        pane: Option<WeakEntity<Pane>>,
 2647        window: &mut Window,
 2648        cx: &mut Context<Self>,
 2649    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2650        let fs = self.app_state.fs.clone();
 2651
 2652        // Sort the paths to ensure we add worktrees for parents before their children.
 2653        abs_paths.sort_unstable();
 2654        cx.spawn_in(window, async move |this, cx| {
 2655            let mut tasks = Vec::with_capacity(abs_paths.len());
 2656
 2657            for abs_path in &abs_paths {
 2658                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2659                    OpenVisible::All => Some(true),
 2660                    OpenVisible::None => Some(false),
 2661                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2662                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2663                        Some(None) => Some(true),
 2664                        None => None,
 2665                    },
 2666                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2667                        Some(Some(metadata)) => Some(metadata.is_dir),
 2668                        Some(None) => Some(false),
 2669                        None => None,
 2670                    },
 2671                };
 2672                let project_path = match visible {
 2673                    Some(visible) => match this
 2674                        .update(cx, |this, cx| {
 2675                            Workspace::project_path_for_path(
 2676                                this.project.clone(),
 2677                                abs_path,
 2678                                visible,
 2679                                cx,
 2680                            )
 2681                        })
 2682                        .log_err()
 2683                    {
 2684                        Some(project_path) => project_path.await.log_err(),
 2685                        None => None,
 2686                    },
 2687                    None => None,
 2688                };
 2689
 2690                let this = this.clone();
 2691                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2692                let fs = fs.clone();
 2693                let pane = pane.clone();
 2694                let task = cx.spawn(async move |cx| {
 2695                    let (worktree, project_path) = project_path?;
 2696                    if fs.is_dir(&abs_path).await {
 2697                        this.update(cx, |workspace, cx| {
 2698                            let worktree = worktree.read(cx);
 2699                            let worktree_abs_path = worktree.abs_path();
 2700                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2701                                worktree.root_entry()
 2702                            } else {
 2703                                abs_path
 2704                                    .strip_prefix(worktree_abs_path.as_ref())
 2705                                    .ok()
 2706                                    .and_then(|relative_path| {
 2707                                        let relative_path =
 2708                                            RelPath::new(relative_path, PathStyle::local())
 2709                                                .log_err()?;
 2710                                        worktree.entry_for_path(&relative_path)
 2711                                    })
 2712                            }
 2713                            .map(|entry| entry.id);
 2714                            if let Some(entry_id) = entry_id {
 2715                                workspace.project.update(cx, |_, cx| {
 2716                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2717                                })
 2718                            }
 2719                        })
 2720                        .ok()?;
 2721                        None
 2722                    } else {
 2723                        Some(
 2724                            this.update_in(cx, |this, window, cx| {
 2725                                this.open_path(
 2726                                    project_path,
 2727                                    pane,
 2728                                    options.focus.unwrap_or(true),
 2729                                    window,
 2730                                    cx,
 2731                                )
 2732                            })
 2733                            .ok()?
 2734                            .await,
 2735                        )
 2736                    }
 2737                });
 2738                tasks.push(task);
 2739            }
 2740
 2741            futures::future::join_all(tasks).await
 2742        })
 2743    }
 2744
 2745    pub fn open_resolved_path(
 2746        &mut self,
 2747        path: ResolvedPath,
 2748        window: &mut Window,
 2749        cx: &mut Context<Self>,
 2750    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2751        match path {
 2752            ResolvedPath::ProjectPath { project_path, .. } => {
 2753                self.open_path(project_path, None, true, window, cx)
 2754            }
 2755            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2756                PathBuf::from(path),
 2757                OpenOptions {
 2758                    visible: Some(OpenVisible::None),
 2759                    ..Default::default()
 2760                },
 2761                window,
 2762                cx,
 2763            ),
 2764        }
 2765    }
 2766
 2767    pub fn absolute_path_of_worktree(
 2768        &self,
 2769        worktree_id: WorktreeId,
 2770        cx: &mut Context<Self>,
 2771    ) -> Option<PathBuf> {
 2772        self.project
 2773            .read(cx)
 2774            .worktree_for_id(worktree_id, cx)
 2775            // TODO: use `abs_path` or `root_dir`
 2776            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2777    }
 2778
 2779    fn add_folder_to_project(
 2780        &mut self,
 2781        _: &AddFolderToProject,
 2782        window: &mut Window,
 2783        cx: &mut Context<Self>,
 2784    ) {
 2785        let project = self.project.read(cx);
 2786        if project.is_via_collab() {
 2787            self.show_error(
 2788                &anyhow!("You cannot add folders to someone else's project"),
 2789                cx,
 2790            );
 2791            return;
 2792        }
 2793        let paths = self.prompt_for_open_path(
 2794            PathPromptOptions {
 2795                files: false,
 2796                directories: true,
 2797                multiple: true,
 2798                prompt: None,
 2799            },
 2800            DirectoryLister::Project(self.project.clone()),
 2801            window,
 2802            cx,
 2803        );
 2804        cx.spawn_in(window, async move |this, cx| {
 2805            if let Some(paths) = paths.await.log_err().flatten() {
 2806                let results = this
 2807                    .update_in(cx, |this, window, cx| {
 2808                        this.open_paths(
 2809                            paths,
 2810                            OpenOptions {
 2811                                visible: Some(OpenVisible::All),
 2812                                ..Default::default()
 2813                            },
 2814                            None,
 2815                            window,
 2816                            cx,
 2817                        )
 2818                    })?
 2819                    .await;
 2820                for result in results.into_iter().flatten() {
 2821                    result.log_err();
 2822                }
 2823            }
 2824            anyhow::Ok(())
 2825        })
 2826        .detach_and_log_err(cx);
 2827    }
 2828
 2829    pub fn project_path_for_path(
 2830        project: Entity<Project>,
 2831        abs_path: &Path,
 2832        visible: bool,
 2833        cx: &mut App,
 2834    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2835        let entry = project.update(cx, |project, cx| {
 2836            project.find_or_create_worktree(abs_path, visible, cx)
 2837        });
 2838        cx.spawn(async move |cx| {
 2839            let (worktree, path) = entry.await?;
 2840            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2841            Ok((
 2842                worktree,
 2843                ProjectPath {
 2844                    worktree_id,
 2845                    path: path,
 2846                },
 2847            ))
 2848        })
 2849    }
 2850
 2851    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2852        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2853    }
 2854
 2855    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2856        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2857    }
 2858
 2859    pub fn items_of_type<'a, T: Item>(
 2860        &'a self,
 2861        cx: &'a App,
 2862    ) -> impl 'a + Iterator<Item = Entity<T>> {
 2863        self.panes
 2864            .iter()
 2865            .flat_map(|pane| pane.read(cx).items_of_type())
 2866    }
 2867
 2868    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 2869        self.active_pane().read(cx).active_item()
 2870    }
 2871
 2872    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 2873        let item = self.active_item(cx)?;
 2874        item.to_any().downcast::<I>().ok()
 2875    }
 2876
 2877    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 2878        self.active_item(cx).and_then(|item| item.project_path(cx))
 2879    }
 2880
 2881    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 2882        self.recent_navigation_history_iter(cx)
 2883            .filter_map(|(path, abs_path)| {
 2884                let worktree = self
 2885                    .project
 2886                    .read(cx)
 2887                    .worktree_for_id(path.worktree_id, cx)?;
 2888                if worktree.read(cx).is_visible() {
 2889                    abs_path
 2890                } else {
 2891                    None
 2892                }
 2893            })
 2894            .next()
 2895    }
 2896
 2897    pub fn save_active_item(
 2898        &mut self,
 2899        save_intent: SaveIntent,
 2900        window: &mut Window,
 2901        cx: &mut App,
 2902    ) -> Task<Result<()>> {
 2903        let project = self.project.clone();
 2904        let pane = self.active_pane();
 2905        let item = pane.read(cx).active_item();
 2906        let pane = pane.downgrade();
 2907
 2908        window.spawn(cx, async move |cx| {
 2909            if let Some(item) = item {
 2910                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 2911                    .await
 2912                    .map(|_| ())
 2913            } else {
 2914                Ok(())
 2915            }
 2916        })
 2917    }
 2918
 2919    pub fn close_inactive_items_and_panes(
 2920        &mut self,
 2921        action: &CloseInactiveTabsAndPanes,
 2922        window: &mut Window,
 2923        cx: &mut Context<Self>,
 2924    ) {
 2925        if let Some(task) = self.close_all_internal(
 2926            true,
 2927            action.save_intent.unwrap_or(SaveIntent::Close),
 2928            window,
 2929            cx,
 2930        ) {
 2931            task.detach_and_log_err(cx)
 2932        }
 2933    }
 2934
 2935    pub fn close_all_items_and_panes(
 2936        &mut self,
 2937        action: &CloseAllItemsAndPanes,
 2938        window: &mut Window,
 2939        cx: &mut Context<Self>,
 2940    ) {
 2941        if let Some(task) = self.close_all_internal(
 2942            false,
 2943            action.save_intent.unwrap_or(SaveIntent::Close),
 2944            window,
 2945            cx,
 2946        ) {
 2947            task.detach_and_log_err(cx)
 2948        }
 2949    }
 2950
 2951    fn close_all_internal(
 2952        &mut self,
 2953        retain_active_pane: bool,
 2954        save_intent: SaveIntent,
 2955        window: &mut Window,
 2956        cx: &mut Context<Self>,
 2957    ) -> Option<Task<Result<()>>> {
 2958        let current_pane = self.active_pane();
 2959
 2960        let mut tasks = Vec::new();
 2961
 2962        if retain_active_pane {
 2963            let current_pane_close = current_pane.update(cx, |pane, cx| {
 2964                pane.close_other_items(
 2965                    &CloseOtherItems {
 2966                        save_intent: None,
 2967                        close_pinned: false,
 2968                    },
 2969                    None,
 2970                    window,
 2971                    cx,
 2972                )
 2973            });
 2974
 2975            tasks.push(current_pane_close);
 2976        }
 2977
 2978        for pane in self.panes() {
 2979            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 2980                continue;
 2981            }
 2982
 2983            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 2984                pane.close_all_items(
 2985                    &CloseAllItems {
 2986                        save_intent: Some(save_intent),
 2987                        close_pinned: false,
 2988                    },
 2989                    window,
 2990                    cx,
 2991                )
 2992            });
 2993
 2994            tasks.push(close_pane_items)
 2995        }
 2996
 2997        if tasks.is_empty() {
 2998            None
 2999        } else {
 3000            Some(cx.spawn_in(window, async move |_, _| {
 3001                for task in tasks {
 3002                    task.await?
 3003                }
 3004                Ok(())
 3005            }))
 3006        }
 3007    }
 3008
 3009    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3010        self.dock_at_position(position).read(cx).is_open()
 3011    }
 3012
 3013    pub fn toggle_dock(
 3014        &mut self,
 3015        dock_side: DockPosition,
 3016        window: &mut Window,
 3017        cx: &mut Context<Self>,
 3018    ) {
 3019        let mut focus_center = false;
 3020        let mut reveal_dock = false;
 3021
 3022        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3023        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3024        if was_visible {
 3025            self.save_open_dock_positions(cx);
 3026        }
 3027
 3028        let dock = self.dock_at_position(dock_side);
 3029        dock.update(cx, |dock, cx| {
 3030            dock.set_open(!was_visible, window, cx);
 3031
 3032            if dock.active_panel().is_none() {
 3033                let Some(panel_ix) = dock
 3034                    .first_enabled_panel_idx(cx)
 3035                    .log_with_level(log::Level::Info)
 3036                else {
 3037                    return;
 3038                };
 3039                dock.activate_panel(panel_ix, window, cx);
 3040            }
 3041
 3042            if let Some(active_panel) = dock.active_panel() {
 3043                if was_visible {
 3044                    if active_panel
 3045                        .panel_focus_handle(cx)
 3046                        .contains_focused(window, cx)
 3047                    {
 3048                        focus_center = true;
 3049                    }
 3050                } else {
 3051                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3052                    window.focus(focus_handle);
 3053                    reveal_dock = true;
 3054                }
 3055            }
 3056        });
 3057
 3058        if reveal_dock {
 3059            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3060        }
 3061
 3062        if focus_center {
 3063            self.active_pane
 3064                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3065        }
 3066
 3067        cx.notify();
 3068        self.serialize_workspace(window, cx);
 3069    }
 3070
 3071    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3072        self.all_docks().into_iter().find(|&dock| {
 3073            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3074        })
 3075    }
 3076
 3077    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3078        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3079            self.save_open_dock_positions(cx);
 3080            dock.update(cx, |dock, cx| {
 3081                dock.set_open(false, window, cx);
 3082            });
 3083            return true;
 3084        }
 3085        false
 3086    }
 3087
 3088    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3089        self.save_open_dock_positions(cx);
 3090        for dock in self.all_docks() {
 3091            dock.update(cx, |dock, cx| {
 3092                dock.set_open(false, window, cx);
 3093            });
 3094        }
 3095
 3096        cx.focus_self(window);
 3097        cx.notify();
 3098        self.serialize_workspace(window, cx);
 3099    }
 3100
 3101    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3102        self.all_docks()
 3103            .into_iter()
 3104            .filter_map(|dock| {
 3105                let dock_ref = dock.read(cx);
 3106                if dock_ref.is_open() {
 3107                    Some(dock_ref.position())
 3108                } else {
 3109                    None
 3110                }
 3111            })
 3112            .collect()
 3113    }
 3114
 3115    /// Saves the positions of currently open docks.
 3116    ///
 3117    /// Updates `last_open_dock_positions` with positions of all currently open
 3118    /// docks, to later be restored by the 'Toggle All Docks' action.
 3119    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3120        let open_dock_positions = self.get_open_dock_positions(cx);
 3121        if !open_dock_positions.is_empty() {
 3122            self.last_open_dock_positions = open_dock_positions;
 3123        }
 3124    }
 3125
 3126    /// Toggles all docks between open and closed states.
 3127    ///
 3128    /// If any docks are open, closes all and remembers their positions. If all
 3129    /// docks are closed, restores the last remembered dock configuration.
 3130    fn toggle_all_docks(
 3131        &mut self,
 3132        _: &ToggleAllDocks,
 3133        window: &mut Window,
 3134        cx: &mut Context<Self>,
 3135    ) {
 3136        let open_dock_positions = self.get_open_dock_positions(cx);
 3137
 3138        if !open_dock_positions.is_empty() {
 3139            self.close_all_docks(window, cx);
 3140        } else if !self.last_open_dock_positions.is_empty() {
 3141            self.restore_last_open_docks(window, cx);
 3142        }
 3143    }
 3144
 3145    /// Reopens docks from the most recently remembered configuration.
 3146    ///
 3147    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3148    /// and clears the stored positions.
 3149    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3150        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3151
 3152        for position in positions_to_open {
 3153            let dock = self.dock_at_position(position);
 3154            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3155        }
 3156
 3157        cx.focus_self(window);
 3158        cx.notify();
 3159        self.serialize_workspace(window, cx);
 3160    }
 3161
 3162    /// Transfer focus to the panel of the given type.
 3163    pub fn focus_panel<T: Panel>(
 3164        &mut self,
 3165        window: &mut Window,
 3166        cx: &mut Context<Self>,
 3167    ) -> Option<Entity<T>> {
 3168        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3169        panel.to_any().downcast().ok()
 3170    }
 3171
 3172    /// Focus the panel of the given type if it isn't already focused. If it is
 3173    /// already focused, then transfer focus back to the workspace center.
 3174    pub fn toggle_panel_focus<T: Panel>(
 3175        &mut self,
 3176        window: &mut Window,
 3177        cx: &mut Context<Self>,
 3178    ) -> bool {
 3179        let mut did_focus_panel = false;
 3180        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3181            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3182            did_focus_panel
 3183        });
 3184        did_focus_panel
 3185    }
 3186
 3187    pub fn activate_panel_for_proto_id(
 3188        &mut self,
 3189        panel_id: PanelId,
 3190        window: &mut Window,
 3191        cx: &mut Context<Self>,
 3192    ) -> Option<Arc<dyn PanelHandle>> {
 3193        let mut panel = None;
 3194        for dock in self.all_docks() {
 3195            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3196                panel = dock.update(cx, |dock, cx| {
 3197                    dock.activate_panel(panel_index, window, cx);
 3198                    dock.set_open(true, window, cx);
 3199                    dock.active_panel().cloned()
 3200                });
 3201                break;
 3202            }
 3203        }
 3204
 3205        if panel.is_some() {
 3206            cx.notify();
 3207            self.serialize_workspace(window, cx);
 3208        }
 3209
 3210        panel
 3211    }
 3212
 3213    /// Focus or unfocus the given panel type, depending on the given callback.
 3214    fn focus_or_unfocus_panel<T: Panel>(
 3215        &mut self,
 3216        window: &mut Window,
 3217        cx: &mut Context<Self>,
 3218        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3219    ) -> Option<Arc<dyn PanelHandle>> {
 3220        let mut result_panel = None;
 3221        let mut serialize = false;
 3222        for dock in self.all_docks() {
 3223            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3224                let mut focus_center = false;
 3225                let panel = dock.update(cx, |dock, cx| {
 3226                    dock.activate_panel(panel_index, window, cx);
 3227
 3228                    let panel = dock.active_panel().cloned();
 3229                    if let Some(panel) = panel.as_ref() {
 3230                        if should_focus(&**panel, window, cx) {
 3231                            dock.set_open(true, window, cx);
 3232                            panel.panel_focus_handle(cx).focus(window);
 3233                        } else {
 3234                            focus_center = true;
 3235                        }
 3236                    }
 3237                    panel
 3238                });
 3239
 3240                if focus_center {
 3241                    self.active_pane
 3242                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3243                }
 3244
 3245                result_panel = panel;
 3246                serialize = true;
 3247                break;
 3248            }
 3249        }
 3250
 3251        if serialize {
 3252            self.serialize_workspace(window, cx);
 3253        }
 3254
 3255        cx.notify();
 3256        result_panel
 3257    }
 3258
 3259    /// Open the panel of the given type
 3260    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3261        for dock in self.all_docks() {
 3262            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3263                dock.update(cx, |dock, cx| {
 3264                    dock.activate_panel(panel_index, window, cx);
 3265                    dock.set_open(true, window, cx);
 3266                });
 3267            }
 3268        }
 3269    }
 3270
 3271    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3272        for dock in self.all_docks().iter() {
 3273            dock.update(cx, |dock, cx| {
 3274                if dock.panel::<T>().is_some() {
 3275                    dock.set_open(false, window, cx)
 3276                }
 3277            })
 3278        }
 3279    }
 3280
 3281    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3282        self.all_docks()
 3283            .iter()
 3284            .find_map(|dock| dock.read(cx).panel::<T>())
 3285    }
 3286
 3287    fn dismiss_zoomed_items_to_reveal(
 3288        &mut self,
 3289        dock_to_reveal: Option<DockPosition>,
 3290        window: &mut Window,
 3291        cx: &mut Context<Self>,
 3292    ) {
 3293        // If a center pane is zoomed, unzoom it.
 3294        for pane in &self.panes {
 3295            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3296                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3297            }
 3298        }
 3299
 3300        // If another dock is zoomed, hide it.
 3301        let mut focus_center = false;
 3302        for dock in self.all_docks() {
 3303            dock.update(cx, |dock, cx| {
 3304                if Some(dock.position()) != dock_to_reveal
 3305                    && let Some(panel) = dock.active_panel()
 3306                    && panel.is_zoomed(window, cx)
 3307                {
 3308                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3309                    dock.set_open(false, window, cx);
 3310                }
 3311            });
 3312        }
 3313
 3314        if focus_center {
 3315            self.active_pane
 3316                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3317        }
 3318
 3319        if self.zoomed_position != dock_to_reveal {
 3320            self.zoomed = None;
 3321            self.zoomed_position = None;
 3322            cx.emit(Event::ZoomChanged);
 3323        }
 3324
 3325        cx.notify();
 3326    }
 3327
 3328    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3329        let pane = cx.new(|cx| {
 3330            let mut pane = Pane::new(
 3331                self.weak_handle(),
 3332                self.project.clone(),
 3333                self.pane_history_timestamp.clone(),
 3334                None,
 3335                NewFile.boxed_clone(),
 3336                true,
 3337                window,
 3338                cx,
 3339            );
 3340            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3341            pane
 3342        });
 3343        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3344            .detach();
 3345        self.panes.push(pane.clone());
 3346
 3347        window.focus(&pane.focus_handle(cx));
 3348
 3349        cx.emit(Event::PaneAdded(pane.clone()));
 3350        pane
 3351    }
 3352
 3353    pub fn add_item_to_center(
 3354        &mut self,
 3355        item: Box<dyn ItemHandle>,
 3356        window: &mut Window,
 3357        cx: &mut Context<Self>,
 3358    ) -> bool {
 3359        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3360            if let Some(center_pane) = center_pane.upgrade() {
 3361                center_pane.update(cx, |pane, cx| {
 3362                    pane.add_item(item, true, true, None, window, cx)
 3363                });
 3364                true
 3365            } else {
 3366                false
 3367            }
 3368        } else {
 3369            false
 3370        }
 3371    }
 3372
 3373    pub fn add_item_to_active_pane(
 3374        &mut self,
 3375        item: Box<dyn ItemHandle>,
 3376        destination_index: Option<usize>,
 3377        focus_item: bool,
 3378        window: &mut Window,
 3379        cx: &mut App,
 3380    ) {
 3381        self.add_item(
 3382            self.active_pane.clone(),
 3383            item,
 3384            destination_index,
 3385            false,
 3386            focus_item,
 3387            window,
 3388            cx,
 3389        )
 3390    }
 3391
 3392    pub fn add_item(
 3393        &mut self,
 3394        pane: Entity<Pane>,
 3395        item: Box<dyn ItemHandle>,
 3396        destination_index: Option<usize>,
 3397        activate_pane: bool,
 3398        focus_item: bool,
 3399        window: &mut Window,
 3400        cx: &mut App,
 3401    ) {
 3402        pane.update(cx, |pane, cx| {
 3403            pane.add_item(
 3404                item,
 3405                activate_pane,
 3406                focus_item,
 3407                destination_index,
 3408                window,
 3409                cx,
 3410            )
 3411        });
 3412    }
 3413
 3414    pub fn split_item(
 3415        &mut self,
 3416        split_direction: SplitDirection,
 3417        item: Box<dyn ItemHandle>,
 3418        window: &mut Window,
 3419        cx: &mut Context<Self>,
 3420    ) {
 3421        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3422        self.add_item(new_pane, item, None, true, true, window, cx);
 3423    }
 3424
 3425    pub fn open_abs_path(
 3426        &mut self,
 3427        abs_path: PathBuf,
 3428        options: OpenOptions,
 3429        window: &mut Window,
 3430        cx: &mut Context<Self>,
 3431    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3432        cx.spawn_in(window, async move |workspace, cx| {
 3433            let open_paths_task_result = workspace
 3434                .update_in(cx, |workspace, window, cx| {
 3435                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3436                })
 3437                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3438                .await;
 3439            anyhow::ensure!(
 3440                open_paths_task_result.len() == 1,
 3441                "open abs path {abs_path:?} task returned incorrect number of results"
 3442            );
 3443            match open_paths_task_result
 3444                .into_iter()
 3445                .next()
 3446                .expect("ensured single task result")
 3447            {
 3448                Some(open_result) => {
 3449                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3450                }
 3451                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3452            }
 3453        })
 3454    }
 3455
 3456    pub fn split_abs_path(
 3457        &mut self,
 3458        abs_path: PathBuf,
 3459        visible: bool,
 3460        window: &mut Window,
 3461        cx: &mut Context<Self>,
 3462    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3463        let project_path_task =
 3464            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3465        cx.spawn_in(window, async move |this, cx| {
 3466            let (_, path) = project_path_task.await?;
 3467            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3468                .await
 3469        })
 3470    }
 3471
 3472    pub fn open_path(
 3473        &mut self,
 3474        path: impl Into<ProjectPath>,
 3475        pane: Option<WeakEntity<Pane>>,
 3476        focus_item: bool,
 3477        window: &mut Window,
 3478        cx: &mut App,
 3479    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3480        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3481    }
 3482
 3483    pub fn open_path_preview(
 3484        &mut self,
 3485        path: impl Into<ProjectPath>,
 3486        pane: Option<WeakEntity<Pane>>,
 3487        focus_item: bool,
 3488        allow_preview: bool,
 3489        activate: bool,
 3490        window: &mut Window,
 3491        cx: &mut App,
 3492    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3493        let pane = pane.unwrap_or_else(|| {
 3494            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3495                self.panes
 3496                    .first()
 3497                    .expect("There must be an active pane")
 3498                    .downgrade()
 3499            })
 3500        });
 3501
 3502        let project_path = path.into();
 3503        let task = self.load_path(project_path.clone(), window, cx);
 3504        window.spawn(cx, async move |cx| {
 3505            let (project_entry_id, build_item) = task.await?;
 3506
 3507            pane.update_in(cx, |pane, window, cx| {
 3508                pane.open_item(
 3509                    project_entry_id,
 3510                    project_path,
 3511                    focus_item,
 3512                    allow_preview,
 3513                    activate,
 3514                    None,
 3515                    window,
 3516                    cx,
 3517                    build_item,
 3518                )
 3519            })
 3520        })
 3521    }
 3522
 3523    pub fn split_path(
 3524        &mut self,
 3525        path: impl Into<ProjectPath>,
 3526        window: &mut Window,
 3527        cx: &mut Context<Self>,
 3528    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3529        self.split_path_preview(path, false, None, window, cx)
 3530    }
 3531
 3532    pub fn split_path_preview(
 3533        &mut self,
 3534        path: impl Into<ProjectPath>,
 3535        allow_preview: bool,
 3536        split_direction: Option<SplitDirection>,
 3537        window: &mut Window,
 3538        cx: &mut Context<Self>,
 3539    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3540        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3541            self.panes
 3542                .first()
 3543                .expect("There must be an active pane")
 3544                .downgrade()
 3545        });
 3546
 3547        if let Member::Pane(center_pane) = &self.center.root
 3548            && center_pane.read(cx).items_len() == 0
 3549        {
 3550            return self.open_path(path, Some(pane), true, window, cx);
 3551        }
 3552
 3553        let project_path = path.into();
 3554        let task = self.load_path(project_path.clone(), window, cx);
 3555        cx.spawn_in(window, async move |this, cx| {
 3556            let (project_entry_id, build_item) = task.await?;
 3557            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3558                let pane = pane.upgrade()?;
 3559                let new_pane = this.split_pane(
 3560                    pane,
 3561                    split_direction.unwrap_or(SplitDirection::Right),
 3562                    window,
 3563                    cx,
 3564                );
 3565                new_pane.update(cx, |new_pane, cx| {
 3566                    Some(new_pane.open_item(
 3567                        project_entry_id,
 3568                        project_path,
 3569                        true,
 3570                        allow_preview,
 3571                        true,
 3572                        None,
 3573                        window,
 3574                        cx,
 3575                        build_item,
 3576                    ))
 3577                })
 3578            })
 3579            .map(|option| option.context("pane was dropped"))?
 3580        })
 3581    }
 3582
 3583    fn load_path(
 3584        &mut self,
 3585        path: ProjectPath,
 3586        window: &mut Window,
 3587        cx: &mut App,
 3588    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3589        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3590        registry.open_path(self.project(), &path, window, cx)
 3591    }
 3592
 3593    pub fn find_project_item<T>(
 3594        &self,
 3595        pane: &Entity<Pane>,
 3596        project_item: &Entity<T::Item>,
 3597        cx: &App,
 3598    ) -> Option<Entity<T>>
 3599    where
 3600        T: ProjectItem,
 3601    {
 3602        use project::ProjectItem as _;
 3603        let project_item = project_item.read(cx);
 3604        let entry_id = project_item.entry_id(cx);
 3605        let project_path = project_item.project_path(cx);
 3606
 3607        let mut item = None;
 3608        if let Some(entry_id) = entry_id {
 3609            item = pane.read(cx).item_for_entry(entry_id, cx);
 3610        }
 3611        if item.is_none()
 3612            && let Some(project_path) = project_path
 3613        {
 3614            item = pane.read(cx).item_for_path(project_path, cx);
 3615        }
 3616
 3617        item.and_then(|item| item.downcast::<T>())
 3618    }
 3619
 3620    pub fn is_project_item_open<T>(
 3621        &self,
 3622        pane: &Entity<Pane>,
 3623        project_item: &Entity<T::Item>,
 3624        cx: &App,
 3625    ) -> bool
 3626    where
 3627        T: ProjectItem,
 3628    {
 3629        self.find_project_item::<T>(pane, project_item, cx)
 3630            .is_some()
 3631    }
 3632
 3633    pub fn open_project_item<T>(
 3634        &mut self,
 3635        pane: Entity<Pane>,
 3636        project_item: Entity<T::Item>,
 3637        activate_pane: bool,
 3638        focus_item: bool,
 3639        window: &mut Window,
 3640        cx: &mut Context<Self>,
 3641    ) -> Entity<T>
 3642    where
 3643        T: ProjectItem,
 3644    {
 3645        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3646            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3647            return item;
 3648        }
 3649
 3650        let item = pane.update(cx, |pane, cx| {
 3651            cx.new(|cx| {
 3652                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3653            })
 3654        });
 3655        let item_id = item.item_id();
 3656        let mut destination_index = None;
 3657        pane.update(cx, |pane, cx| {
 3658            if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation
 3659                && let Some(preview_item_id) = pane.preview_item_id()
 3660                && preview_item_id != item_id
 3661            {
 3662                destination_index = pane.close_current_preview_item(window, cx);
 3663            }
 3664            pane.set_preview_item_id(Some(item.item_id()), cx)
 3665        });
 3666
 3667        self.add_item(
 3668            pane,
 3669            Box::new(item.clone()),
 3670            destination_index,
 3671            activate_pane,
 3672            focus_item,
 3673            window,
 3674            cx,
 3675        );
 3676        item
 3677    }
 3678
 3679    pub fn open_shared_screen(
 3680        &mut self,
 3681        peer_id: PeerId,
 3682        window: &mut Window,
 3683        cx: &mut Context<Self>,
 3684    ) {
 3685        if let Some(shared_screen) =
 3686            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3687        {
 3688            self.active_pane.update(cx, |pane, cx| {
 3689                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3690            });
 3691        }
 3692    }
 3693
 3694    pub fn activate_item(
 3695        &mut self,
 3696        item: &dyn ItemHandle,
 3697        activate_pane: bool,
 3698        focus_item: bool,
 3699        window: &mut Window,
 3700        cx: &mut App,
 3701    ) -> bool {
 3702        let result = self.panes.iter().find_map(|pane| {
 3703            pane.read(cx)
 3704                .index_for_item(item)
 3705                .map(|ix| (pane.clone(), ix))
 3706        });
 3707        if let Some((pane, ix)) = result {
 3708            pane.update(cx, |pane, cx| {
 3709                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3710            });
 3711            true
 3712        } else {
 3713            false
 3714        }
 3715    }
 3716
 3717    fn activate_pane_at_index(
 3718        &mut self,
 3719        action: &ActivatePane,
 3720        window: &mut Window,
 3721        cx: &mut Context<Self>,
 3722    ) {
 3723        let panes = self.center.panes();
 3724        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3725            window.focus(&pane.focus_handle(cx));
 3726        } else {
 3727            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 3728                .detach();
 3729        }
 3730    }
 3731
 3732    fn move_item_to_pane_at_index(
 3733        &mut self,
 3734        action: &MoveItemToPane,
 3735        window: &mut Window,
 3736        cx: &mut Context<Self>,
 3737    ) {
 3738        let panes = self.center.panes();
 3739        let destination = match panes.get(action.destination) {
 3740            Some(&destination) => destination.clone(),
 3741            None => {
 3742                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3743                    return;
 3744                }
 3745                let direction = SplitDirection::Right;
 3746                let split_off_pane = self
 3747                    .find_pane_in_direction(direction, cx)
 3748                    .unwrap_or_else(|| self.active_pane.clone());
 3749                let new_pane = self.add_pane(window, cx);
 3750                if self
 3751                    .center
 3752                    .split(&split_off_pane, &new_pane, direction)
 3753                    .log_err()
 3754                    .is_none()
 3755                {
 3756                    return;
 3757                };
 3758                new_pane
 3759            }
 3760        };
 3761
 3762        if action.clone {
 3763            if self
 3764                .active_pane
 3765                .read(cx)
 3766                .active_item()
 3767                .is_some_and(|item| item.can_split(cx))
 3768            {
 3769                clone_active_item(
 3770                    self.database_id(),
 3771                    &self.active_pane,
 3772                    &destination,
 3773                    action.focus,
 3774                    window,
 3775                    cx,
 3776                );
 3777                return;
 3778            }
 3779        }
 3780        move_active_item(
 3781            &self.active_pane,
 3782            &destination,
 3783            action.focus,
 3784            true,
 3785            window,
 3786            cx,
 3787        )
 3788    }
 3789
 3790    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3791        let panes = self.center.panes();
 3792        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3793            let next_ix = (ix + 1) % panes.len();
 3794            let next_pane = panes[next_ix].clone();
 3795            window.focus(&next_pane.focus_handle(cx));
 3796        }
 3797    }
 3798
 3799    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3800        let panes = self.center.panes();
 3801        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3802            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3803            let prev_pane = panes[prev_ix].clone();
 3804            window.focus(&prev_pane.focus_handle(cx));
 3805        }
 3806    }
 3807
 3808    pub fn activate_pane_in_direction(
 3809        &mut self,
 3810        direction: SplitDirection,
 3811        window: &mut Window,
 3812        cx: &mut App,
 3813    ) {
 3814        use ActivateInDirectionTarget as Target;
 3815        enum Origin {
 3816            LeftDock,
 3817            RightDock,
 3818            BottomDock,
 3819            Center,
 3820        }
 3821
 3822        let origin: Origin = [
 3823            (&self.left_dock, Origin::LeftDock),
 3824            (&self.right_dock, Origin::RightDock),
 3825            (&self.bottom_dock, Origin::BottomDock),
 3826        ]
 3827        .into_iter()
 3828        .find_map(|(dock, origin)| {
 3829            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3830                Some(origin)
 3831            } else {
 3832                None
 3833            }
 3834        })
 3835        .unwrap_or(Origin::Center);
 3836
 3837        let get_last_active_pane = || {
 3838            let pane = self
 3839                .last_active_center_pane
 3840                .clone()
 3841                .unwrap_or_else(|| {
 3842                    self.panes
 3843                        .first()
 3844                        .expect("There must be an active pane")
 3845                        .downgrade()
 3846                })
 3847                .upgrade()?;
 3848            (pane.read(cx).items_len() != 0).then_some(pane)
 3849        };
 3850
 3851        let try_dock =
 3852            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 3853
 3854        let target = match (origin, direction) {
 3855            // We're in the center, so we first try to go to a different pane,
 3856            // otherwise try to go to a dock.
 3857            (Origin::Center, direction) => {
 3858                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 3859                    Some(Target::Pane(pane))
 3860                } else {
 3861                    match direction {
 3862                        SplitDirection::Up => None,
 3863                        SplitDirection::Down => try_dock(&self.bottom_dock),
 3864                        SplitDirection::Left => try_dock(&self.left_dock),
 3865                        SplitDirection::Right => try_dock(&self.right_dock),
 3866                    }
 3867                }
 3868            }
 3869
 3870            (Origin::LeftDock, SplitDirection::Right) => {
 3871                if let Some(last_active_pane) = get_last_active_pane() {
 3872                    Some(Target::Pane(last_active_pane))
 3873                } else {
 3874                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 3875                }
 3876            }
 3877
 3878            (Origin::LeftDock, SplitDirection::Down)
 3879            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 3880
 3881            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 3882            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 3883            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 3884
 3885            (Origin::RightDock, SplitDirection::Left) => {
 3886                if let Some(last_active_pane) = get_last_active_pane() {
 3887                    Some(Target::Pane(last_active_pane))
 3888                } else {
 3889                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 3890                }
 3891            }
 3892
 3893            _ => None,
 3894        };
 3895
 3896        match target {
 3897            Some(ActivateInDirectionTarget::Pane(pane)) => {
 3898                let pane = pane.read(cx);
 3899                if let Some(item) = pane.active_item() {
 3900                    item.item_focus_handle(cx).focus(window);
 3901                } else {
 3902                    log::error!(
 3903                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 3904                    );
 3905                }
 3906            }
 3907            Some(ActivateInDirectionTarget::Dock(dock)) => {
 3908                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 3909                window.defer(cx, move |window, cx| {
 3910                    let dock = dock.read(cx);
 3911                    if let Some(panel) = dock.active_panel() {
 3912                        panel.panel_focus_handle(cx).focus(window);
 3913                    } else {
 3914                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 3915                    }
 3916                })
 3917            }
 3918            None => {}
 3919        }
 3920    }
 3921
 3922    pub fn move_item_to_pane_in_direction(
 3923        &mut self,
 3924        action: &MoveItemToPaneInDirection,
 3925        window: &mut Window,
 3926        cx: &mut Context<Self>,
 3927    ) {
 3928        let destination = match self.find_pane_in_direction(action.direction, cx) {
 3929            Some(destination) => destination,
 3930            None => {
 3931                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3932                    return;
 3933                }
 3934                let new_pane = self.add_pane(window, cx);
 3935                if self
 3936                    .center
 3937                    .split(&self.active_pane, &new_pane, action.direction)
 3938                    .log_err()
 3939                    .is_none()
 3940                {
 3941                    return;
 3942                };
 3943                new_pane
 3944            }
 3945        };
 3946
 3947        if action.clone {
 3948            if self
 3949                .active_pane
 3950                .read(cx)
 3951                .active_item()
 3952                .is_some_and(|item| item.can_split(cx))
 3953            {
 3954                clone_active_item(
 3955                    self.database_id(),
 3956                    &self.active_pane,
 3957                    &destination,
 3958                    action.focus,
 3959                    window,
 3960                    cx,
 3961                );
 3962                return;
 3963            }
 3964        }
 3965        move_active_item(
 3966            &self.active_pane,
 3967            &destination,
 3968            action.focus,
 3969            true,
 3970            window,
 3971            cx,
 3972        );
 3973    }
 3974
 3975    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 3976        self.center.bounding_box_for_pane(pane)
 3977    }
 3978
 3979    pub fn find_pane_in_direction(
 3980        &mut self,
 3981        direction: SplitDirection,
 3982        cx: &App,
 3983    ) -> Option<Entity<Pane>> {
 3984        self.center
 3985            .find_pane_in_direction(&self.active_pane, direction, cx)
 3986            .cloned()
 3987    }
 3988
 3989    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 3990        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 3991            self.center.swap(&self.active_pane, &to);
 3992            cx.notify();
 3993        }
 3994    }
 3995
 3996    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 3997        if self
 3998            .center
 3999            .move_to_border(&self.active_pane, direction)
 4000            .unwrap()
 4001        {
 4002            cx.notify();
 4003        }
 4004    }
 4005
 4006    pub fn resize_pane(
 4007        &mut self,
 4008        axis: gpui::Axis,
 4009        amount: Pixels,
 4010        window: &mut Window,
 4011        cx: &mut Context<Self>,
 4012    ) {
 4013        let docks = self.all_docks();
 4014        let active_dock = docks
 4015            .into_iter()
 4016            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4017
 4018        if let Some(dock) = active_dock {
 4019            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4020                return;
 4021            };
 4022            match dock.read(cx).position() {
 4023                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4024                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4025                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4026            }
 4027        } else {
 4028            self.center
 4029                .resize(&self.active_pane, axis, amount, &self.bounds);
 4030        }
 4031        cx.notify();
 4032    }
 4033
 4034    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4035        self.center.reset_pane_sizes();
 4036        cx.notify();
 4037    }
 4038
 4039    fn handle_pane_focused(
 4040        &mut self,
 4041        pane: Entity<Pane>,
 4042        window: &mut Window,
 4043        cx: &mut Context<Self>,
 4044    ) {
 4045        // This is explicitly hoisted out of the following check for pane identity as
 4046        // terminal panel panes are not registered as a center panes.
 4047        self.status_bar.update(cx, |status_bar, cx| {
 4048            status_bar.set_active_pane(&pane, window, cx);
 4049        });
 4050        if self.active_pane != pane {
 4051            self.set_active_pane(&pane, window, cx);
 4052        }
 4053
 4054        if self.last_active_center_pane.is_none() {
 4055            self.last_active_center_pane = Some(pane.downgrade());
 4056        }
 4057
 4058        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 4059        if pane.read(cx).is_zoomed() {
 4060            self.zoomed = Some(pane.downgrade().into());
 4061        } else {
 4062            self.zoomed = None;
 4063        }
 4064        self.zoomed_position = None;
 4065        cx.emit(Event::ZoomChanged);
 4066        self.update_active_view_for_followers(window, cx);
 4067        pane.update(cx, |pane, _| {
 4068            pane.track_alternate_file_items();
 4069        });
 4070
 4071        cx.notify();
 4072    }
 4073
 4074    fn set_active_pane(
 4075        &mut self,
 4076        pane: &Entity<Pane>,
 4077        window: &mut Window,
 4078        cx: &mut Context<Self>,
 4079    ) {
 4080        self.active_pane = pane.clone();
 4081        self.active_item_path_changed(window, cx);
 4082        self.last_active_center_pane = Some(pane.downgrade());
 4083    }
 4084
 4085    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4086        self.update_active_view_for_followers(window, cx);
 4087    }
 4088
 4089    fn handle_pane_event(
 4090        &mut self,
 4091        pane: &Entity<Pane>,
 4092        event: &pane::Event,
 4093        window: &mut Window,
 4094        cx: &mut Context<Self>,
 4095    ) {
 4096        let mut serialize_workspace = true;
 4097        match event {
 4098            pane::Event::AddItem { item } => {
 4099                item.added_to_pane(self, pane.clone(), window, cx);
 4100                cx.emit(Event::ItemAdded {
 4101                    item: item.boxed_clone(),
 4102                });
 4103            }
 4104            pane::Event::Split {
 4105                direction,
 4106                clone_active_item,
 4107            } => {
 4108                if *clone_active_item {
 4109                    self.split_and_clone(pane.clone(), *direction, window, cx)
 4110                        .detach();
 4111                } else {
 4112                    self.split_and_move(pane.clone(), *direction, window, cx);
 4113                }
 4114            }
 4115            pane::Event::JoinIntoNext => {
 4116                self.join_pane_into_next(pane.clone(), window, cx);
 4117            }
 4118            pane::Event::JoinAll => {
 4119                self.join_all_panes(window, cx);
 4120            }
 4121            pane::Event::Remove { focus_on_pane } => {
 4122                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4123            }
 4124            pane::Event::ActivateItem {
 4125                local,
 4126                focus_changed,
 4127            } => {
 4128                window.invalidate_character_coordinates();
 4129
 4130                pane.update(cx, |pane, _| {
 4131                    pane.track_alternate_file_items();
 4132                });
 4133                if *local {
 4134                    self.unfollow_in_pane(pane, window, cx);
 4135                }
 4136                serialize_workspace = *focus_changed || pane != self.active_pane();
 4137                if pane == self.active_pane() {
 4138                    self.active_item_path_changed(window, cx);
 4139                    self.update_active_view_for_followers(window, cx);
 4140                } else if *local {
 4141                    self.set_active_pane(pane, window, cx);
 4142                }
 4143            }
 4144            pane::Event::UserSavedItem { item, save_intent } => {
 4145                cx.emit(Event::UserSavedItem {
 4146                    pane: pane.downgrade(),
 4147                    item: item.boxed_clone(),
 4148                    save_intent: *save_intent,
 4149                });
 4150                serialize_workspace = false;
 4151            }
 4152            pane::Event::ChangeItemTitle => {
 4153                if *pane == self.active_pane {
 4154                    self.active_item_path_changed(window, cx);
 4155                }
 4156                serialize_workspace = false;
 4157            }
 4158            pane::Event::RemovedItem { item } => {
 4159                cx.emit(Event::ActiveItemChanged);
 4160                self.update_window_edited(window, cx);
 4161                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4162                    && entry.get().entity_id() == pane.entity_id()
 4163                {
 4164                    entry.remove();
 4165                }
 4166                cx.emit(Event::ItemRemoved {
 4167                    item_id: item.item_id(),
 4168                });
 4169            }
 4170            pane::Event::Focus => {
 4171                window.invalidate_character_coordinates();
 4172                self.handle_pane_focused(pane.clone(), window, cx);
 4173            }
 4174            pane::Event::ZoomIn => {
 4175                if *pane == self.active_pane {
 4176                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4177                    if pane.read(cx).has_focus(window, cx) {
 4178                        self.zoomed = Some(pane.downgrade().into());
 4179                        self.zoomed_position = None;
 4180                        cx.emit(Event::ZoomChanged);
 4181                    }
 4182                    cx.notify();
 4183                }
 4184            }
 4185            pane::Event::ZoomOut => {
 4186                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4187                if self.zoomed_position.is_none() {
 4188                    self.zoomed = None;
 4189                    cx.emit(Event::ZoomChanged);
 4190                }
 4191                cx.notify();
 4192            }
 4193            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4194        }
 4195
 4196        if serialize_workspace {
 4197            self.serialize_workspace(window, cx);
 4198        }
 4199    }
 4200
 4201    pub fn unfollow_in_pane(
 4202        &mut self,
 4203        pane: &Entity<Pane>,
 4204        window: &mut Window,
 4205        cx: &mut Context<Workspace>,
 4206    ) -> Option<CollaboratorId> {
 4207        let leader_id = self.leader_for_pane(pane)?;
 4208        self.unfollow(leader_id, window, cx);
 4209        Some(leader_id)
 4210    }
 4211
 4212    pub fn split_pane(
 4213        &mut self,
 4214        pane_to_split: Entity<Pane>,
 4215        split_direction: SplitDirection,
 4216        window: &mut Window,
 4217        cx: &mut Context<Self>,
 4218    ) -> Entity<Pane> {
 4219        let new_pane = self.add_pane(window, cx);
 4220        self.center
 4221            .split(&pane_to_split, &new_pane, split_direction)
 4222            .unwrap();
 4223        cx.notify();
 4224        new_pane
 4225    }
 4226
 4227    pub fn split_and_move(
 4228        &mut self,
 4229        pane: Entity<Pane>,
 4230        direction: SplitDirection,
 4231        window: &mut Window,
 4232        cx: &mut Context<Self>,
 4233    ) {
 4234        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4235            return;
 4236        };
 4237        let new_pane = self.add_pane(window, cx);
 4238        new_pane.update(cx, |pane, cx| {
 4239            pane.add_item(item, true, true, None, window, cx)
 4240        });
 4241        self.center.split(&pane, &new_pane, direction).unwrap();
 4242        cx.notify();
 4243    }
 4244
 4245    pub fn split_and_clone(
 4246        &mut self,
 4247        pane: Entity<Pane>,
 4248        direction: SplitDirection,
 4249        window: &mut Window,
 4250        cx: &mut Context<Self>,
 4251    ) -> Task<Option<Entity<Pane>>> {
 4252        let Some(item) = pane.read(cx).active_item() else {
 4253            return Task::ready(None);
 4254        };
 4255        if !item.can_split(cx) {
 4256            return Task::ready(None);
 4257        }
 4258        let task = item.clone_on_split(self.database_id(), window, cx);
 4259        cx.spawn_in(window, async move |this, cx| {
 4260            if let Some(clone) = task.await {
 4261                this.update_in(cx, |this, window, cx| {
 4262                    let new_pane = this.add_pane(window, cx);
 4263                    new_pane.update(cx, |pane, cx| {
 4264                        pane.add_item(clone, true, true, None, window, cx)
 4265                    });
 4266                    this.center.split(&pane, &new_pane, direction).unwrap();
 4267                    cx.notify();
 4268                    new_pane
 4269                })
 4270                .ok()
 4271            } else {
 4272                None
 4273            }
 4274        })
 4275    }
 4276
 4277    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4278        let active_item = self.active_pane.read(cx).active_item();
 4279        for pane in &self.panes {
 4280            join_pane_into_active(&self.active_pane, pane, window, cx);
 4281        }
 4282        if let Some(active_item) = active_item {
 4283            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4284        }
 4285        cx.notify();
 4286    }
 4287
 4288    pub fn join_pane_into_next(
 4289        &mut self,
 4290        pane: Entity<Pane>,
 4291        window: &mut Window,
 4292        cx: &mut Context<Self>,
 4293    ) {
 4294        let next_pane = self
 4295            .find_pane_in_direction(SplitDirection::Right, cx)
 4296            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4297            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4298            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4299        let Some(next_pane) = next_pane else {
 4300            return;
 4301        };
 4302        move_all_items(&pane, &next_pane, window, cx);
 4303        cx.notify();
 4304    }
 4305
 4306    fn remove_pane(
 4307        &mut self,
 4308        pane: Entity<Pane>,
 4309        focus_on: Option<Entity<Pane>>,
 4310        window: &mut Window,
 4311        cx: &mut Context<Self>,
 4312    ) {
 4313        if self.center.remove(&pane).unwrap() {
 4314            self.force_remove_pane(&pane, &focus_on, window, cx);
 4315            self.unfollow_in_pane(&pane, window, cx);
 4316            self.last_leaders_by_pane.remove(&pane.downgrade());
 4317            for removed_item in pane.read(cx).items() {
 4318                self.panes_by_item.remove(&removed_item.item_id());
 4319            }
 4320
 4321            cx.notify();
 4322        } else {
 4323            self.active_item_path_changed(window, cx);
 4324        }
 4325        cx.emit(Event::PaneRemoved);
 4326    }
 4327
 4328    pub fn panes(&self) -> &[Entity<Pane>] {
 4329        &self.panes
 4330    }
 4331
 4332    pub fn active_pane(&self) -> &Entity<Pane> {
 4333        &self.active_pane
 4334    }
 4335
 4336    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4337        for dock in self.all_docks() {
 4338            if dock.focus_handle(cx).contains_focused(window, cx)
 4339                && let Some(pane) = dock
 4340                    .read(cx)
 4341                    .active_panel()
 4342                    .and_then(|panel| panel.pane(cx))
 4343            {
 4344                return pane;
 4345            }
 4346        }
 4347        self.active_pane().clone()
 4348    }
 4349
 4350    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4351        self.find_pane_in_direction(SplitDirection::Right, cx)
 4352            .unwrap_or_else(|| {
 4353                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4354            })
 4355    }
 4356
 4357    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4358        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4359        weak_pane.upgrade()
 4360    }
 4361
 4362    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4363        self.follower_states.retain(|leader_id, state| {
 4364            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4365                for item in state.items_by_leader_view_id.values() {
 4366                    item.view.set_leader_id(None, window, cx);
 4367                }
 4368                false
 4369            } else {
 4370                true
 4371            }
 4372        });
 4373        cx.notify();
 4374    }
 4375
 4376    pub fn start_following(
 4377        &mut self,
 4378        leader_id: impl Into<CollaboratorId>,
 4379        window: &mut Window,
 4380        cx: &mut Context<Self>,
 4381    ) -> Option<Task<Result<()>>> {
 4382        let leader_id = leader_id.into();
 4383        let pane = self.active_pane().clone();
 4384
 4385        self.last_leaders_by_pane
 4386            .insert(pane.downgrade(), leader_id);
 4387        self.unfollow(leader_id, window, cx);
 4388        self.unfollow_in_pane(&pane, window, cx);
 4389        self.follower_states.insert(
 4390            leader_id,
 4391            FollowerState {
 4392                center_pane: pane.clone(),
 4393                dock_pane: None,
 4394                active_view_id: None,
 4395                items_by_leader_view_id: Default::default(),
 4396            },
 4397        );
 4398        cx.notify();
 4399
 4400        match leader_id {
 4401            CollaboratorId::PeerId(leader_peer_id) => {
 4402                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4403                let project_id = self.project.read(cx).remote_id();
 4404                let request = self.app_state.client.request(proto::Follow {
 4405                    room_id,
 4406                    project_id,
 4407                    leader_id: Some(leader_peer_id),
 4408                });
 4409
 4410                Some(cx.spawn_in(window, async move |this, cx| {
 4411                    let response = request.await?;
 4412                    this.update(cx, |this, _| {
 4413                        let state = this
 4414                            .follower_states
 4415                            .get_mut(&leader_id)
 4416                            .context("following interrupted")?;
 4417                        state.active_view_id = response
 4418                            .active_view
 4419                            .as_ref()
 4420                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4421                        anyhow::Ok(())
 4422                    })??;
 4423                    if let Some(view) = response.active_view {
 4424                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4425                    }
 4426                    this.update_in(cx, |this, window, cx| {
 4427                        this.leader_updated(leader_id, window, cx)
 4428                    })?;
 4429                    Ok(())
 4430                }))
 4431            }
 4432            CollaboratorId::Agent => {
 4433                self.leader_updated(leader_id, window, cx)?;
 4434                Some(Task::ready(Ok(())))
 4435            }
 4436        }
 4437    }
 4438
 4439    pub fn follow_next_collaborator(
 4440        &mut self,
 4441        _: &FollowNextCollaborator,
 4442        window: &mut Window,
 4443        cx: &mut Context<Self>,
 4444    ) {
 4445        let collaborators = self.project.read(cx).collaborators();
 4446        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4447            let mut collaborators = collaborators.keys().copied();
 4448            for peer_id in collaborators.by_ref() {
 4449                if CollaboratorId::PeerId(peer_id) == leader_id {
 4450                    break;
 4451                }
 4452            }
 4453            collaborators.next().map(CollaboratorId::PeerId)
 4454        } else if let Some(last_leader_id) =
 4455            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4456        {
 4457            match last_leader_id {
 4458                CollaboratorId::PeerId(peer_id) => {
 4459                    if collaborators.contains_key(peer_id) {
 4460                        Some(*last_leader_id)
 4461                    } else {
 4462                        None
 4463                    }
 4464                }
 4465                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4466            }
 4467        } else {
 4468            None
 4469        };
 4470
 4471        let pane = self.active_pane.clone();
 4472        let Some(leader_id) = next_leader_id.or_else(|| {
 4473            Some(CollaboratorId::PeerId(
 4474                collaborators.keys().copied().next()?,
 4475            ))
 4476        }) else {
 4477            return;
 4478        };
 4479        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4480            return;
 4481        }
 4482        if let Some(task) = self.start_following(leader_id, window, cx) {
 4483            task.detach_and_log_err(cx)
 4484        }
 4485    }
 4486
 4487    pub fn follow(
 4488        &mut self,
 4489        leader_id: impl Into<CollaboratorId>,
 4490        window: &mut Window,
 4491        cx: &mut Context<Self>,
 4492    ) {
 4493        let leader_id = leader_id.into();
 4494
 4495        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4496            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4497                return;
 4498            };
 4499            let room = room.read(cx);
 4500            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4501                return;
 4502            };
 4503
 4504            let project = self.project.read(cx);
 4505
 4506            let other_project_id = match remote_participant.location {
 4507                call::ParticipantLocation::External => None,
 4508                call::ParticipantLocation::UnsharedProject => None,
 4509                call::ParticipantLocation::SharedProject { project_id } => {
 4510                    if Some(project_id) == project.remote_id() {
 4511                        None
 4512                    } else {
 4513                        Some(project_id)
 4514                    }
 4515                }
 4516            };
 4517
 4518            // if they are active in another project, follow there.
 4519            if let Some(project_id) = other_project_id {
 4520                let app_state = self.app_state.clone();
 4521                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4522                    .detach_and_log_err(cx);
 4523            }
 4524        }
 4525
 4526        // if you're already following, find the right pane and focus it.
 4527        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4528            window.focus(&follower_state.pane().focus_handle(cx));
 4529
 4530            return;
 4531        }
 4532
 4533        // Otherwise, follow.
 4534        if let Some(task) = self.start_following(leader_id, window, cx) {
 4535            task.detach_and_log_err(cx)
 4536        }
 4537    }
 4538
 4539    pub fn unfollow(
 4540        &mut self,
 4541        leader_id: impl Into<CollaboratorId>,
 4542        window: &mut Window,
 4543        cx: &mut Context<Self>,
 4544    ) -> Option<()> {
 4545        cx.notify();
 4546
 4547        let leader_id = leader_id.into();
 4548        let state = self.follower_states.remove(&leader_id)?;
 4549        for (_, item) in state.items_by_leader_view_id {
 4550            item.view.set_leader_id(None, window, cx);
 4551        }
 4552
 4553        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4554            let project_id = self.project.read(cx).remote_id();
 4555            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4556            self.app_state
 4557                .client
 4558                .send(proto::Unfollow {
 4559                    room_id,
 4560                    project_id,
 4561                    leader_id: Some(leader_peer_id),
 4562                })
 4563                .log_err();
 4564        }
 4565
 4566        Some(())
 4567    }
 4568
 4569    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4570        self.follower_states.contains_key(&id.into())
 4571    }
 4572
 4573    fn active_item_path_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4574        cx.emit(Event::ActiveItemChanged);
 4575        let active_entry = self.active_project_path(cx);
 4576        self.project.update(cx, |project, cx| {
 4577            project.set_active_path(active_entry.clone(), cx)
 4578        });
 4579
 4580        if let Some(project_path) = &active_entry {
 4581            let git_store_entity = self.project.read(cx).git_store().clone();
 4582            git_store_entity.update(cx, |git_store, cx| {
 4583                git_store.set_active_repo_for_path(project_path, cx);
 4584            });
 4585        }
 4586
 4587        self.update_window_title(window, cx);
 4588    }
 4589
 4590    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4591        let project = self.project().read(cx);
 4592        let mut title = String::new();
 4593
 4594        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4595            let name = {
 4596                let settings_location = SettingsLocation {
 4597                    worktree_id: worktree.read(cx).id(),
 4598                    path: RelPath::empty(),
 4599                };
 4600
 4601                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4602                match &settings.project_name {
 4603                    Some(name) => name.as_str(),
 4604                    None => worktree.read(cx).root_name_str(),
 4605                }
 4606            };
 4607            if i > 0 {
 4608                title.push_str(", ");
 4609            }
 4610            title.push_str(name);
 4611        }
 4612
 4613        if title.is_empty() {
 4614            title = "empty project".to_string();
 4615        }
 4616
 4617        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4618            let filename = path.path.file_name().or_else(|| {
 4619                Some(
 4620                    project
 4621                        .worktree_for_id(path.worktree_id, cx)?
 4622                        .read(cx)
 4623                        .root_name_str(),
 4624                )
 4625            });
 4626
 4627            if let Some(filename) = filename {
 4628                title.push_str("");
 4629                title.push_str(filename.as_ref());
 4630            }
 4631        }
 4632
 4633        if project.is_via_collab() {
 4634            title.push_str("");
 4635        } else if project.is_shared() {
 4636            title.push_str("");
 4637        }
 4638
 4639        if let Some(last_title) = self.last_window_title.as_ref()
 4640            && &title == last_title
 4641        {
 4642            return;
 4643        }
 4644        window.set_window_title(&title);
 4645        SystemWindowTabController::update_tab_title(
 4646            cx,
 4647            window.window_handle().window_id(),
 4648            SharedString::from(&title),
 4649        );
 4650        self.last_window_title = Some(title);
 4651    }
 4652
 4653    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4654        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4655        if is_edited != self.window_edited {
 4656            self.window_edited = is_edited;
 4657            window.set_window_edited(self.window_edited)
 4658        }
 4659    }
 4660
 4661    fn update_item_dirty_state(
 4662        &mut self,
 4663        item: &dyn ItemHandle,
 4664        window: &mut Window,
 4665        cx: &mut App,
 4666    ) {
 4667        let is_dirty = item.is_dirty(cx);
 4668        let item_id = item.item_id();
 4669        let was_dirty = self.dirty_items.contains_key(&item_id);
 4670        if is_dirty == was_dirty {
 4671            return;
 4672        }
 4673        if was_dirty {
 4674            self.dirty_items.remove(&item_id);
 4675            self.update_window_edited(window, cx);
 4676            return;
 4677        }
 4678        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4679            let s = item.on_release(
 4680                cx,
 4681                Box::new(move |cx| {
 4682                    window_handle
 4683                        .update(cx, |this, window, cx| {
 4684                            this.dirty_items.remove(&item_id);
 4685                            this.update_window_edited(window, cx)
 4686                        })
 4687                        .ok();
 4688                }),
 4689            );
 4690            self.dirty_items.insert(item_id, s);
 4691            self.update_window_edited(window, cx);
 4692        }
 4693    }
 4694
 4695    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4696        if self.notifications.is_empty() {
 4697            None
 4698        } else {
 4699            Some(
 4700                div()
 4701                    .absolute()
 4702                    .right_3()
 4703                    .bottom_3()
 4704                    .w_112()
 4705                    .h_full()
 4706                    .flex()
 4707                    .flex_col()
 4708                    .justify_end()
 4709                    .gap_2()
 4710                    .children(
 4711                        self.notifications
 4712                            .iter()
 4713                            .map(|(_, notification)| notification.clone().into_any()),
 4714                    ),
 4715            )
 4716        }
 4717    }
 4718
 4719    // RPC handlers
 4720
 4721    fn active_view_for_follower(
 4722        &self,
 4723        follower_project_id: Option<u64>,
 4724        window: &mut Window,
 4725        cx: &mut Context<Self>,
 4726    ) -> Option<proto::View> {
 4727        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4728        let item = item?;
 4729        let leader_id = self
 4730            .pane_for(&*item)
 4731            .and_then(|pane| self.leader_for_pane(&pane));
 4732        let leader_peer_id = match leader_id {
 4733            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4734            Some(CollaboratorId::Agent) | None => None,
 4735        };
 4736
 4737        let item_handle = item.to_followable_item_handle(cx)?;
 4738        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4739        let variant = item_handle.to_state_proto(window, cx)?;
 4740
 4741        if item_handle.is_project_item(window, cx)
 4742            && (follower_project_id.is_none()
 4743                || follower_project_id != self.project.read(cx).remote_id())
 4744        {
 4745            return None;
 4746        }
 4747
 4748        Some(proto::View {
 4749            id: id.to_proto(),
 4750            leader_id: leader_peer_id,
 4751            variant: Some(variant),
 4752            panel_id: panel_id.map(|id| id as i32),
 4753        })
 4754    }
 4755
 4756    fn handle_follow(
 4757        &mut self,
 4758        follower_project_id: Option<u64>,
 4759        window: &mut Window,
 4760        cx: &mut Context<Self>,
 4761    ) -> proto::FollowResponse {
 4762        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4763
 4764        cx.notify();
 4765        proto::FollowResponse {
 4766            // TODO: Remove after version 0.145.x stabilizes.
 4767            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4768            views: active_view.iter().cloned().collect(),
 4769            active_view,
 4770        }
 4771    }
 4772
 4773    fn handle_update_followers(
 4774        &mut self,
 4775        leader_id: PeerId,
 4776        message: proto::UpdateFollowers,
 4777        _window: &mut Window,
 4778        _cx: &mut Context<Self>,
 4779    ) {
 4780        self.leader_updates_tx
 4781            .unbounded_send((leader_id, message))
 4782            .ok();
 4783    }
 4784
 4785    async fn process_leader_update(
 4786        this: &WeakEntity<Self>,
 4787        leader_id: PeerId,
 4788        update: proto::UpdateFollowers,
 4789        cx: &mut AsyncWindowContext,
 4790    ) -> Result<()> {
 4791        match update.variant.context("invalid update")? {
 4792            proto::update_followers::Variant::CreateView(view) => {
 4793                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4794                let should_add_view = this.update(cx, |this, _| {
 4795                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4796                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4797                    } else {
 4798                        anyhow::Ok(false)
 4799                    }
 4800                })??;
 4801
 4802                if should_add_view {
 4803                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4804                }
 4805            }
 4806            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4807                let should_add_view = this.update(cx, |this, _| {
 4808                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4809                        state.active_view_id = update_active_view
 4810                            .view
 4811                            .as_ref()
 4812                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4813
 4814                        if state.active_view_id.is_some_and(|view_id| {
 4815                            !state.items_by_leader_view_id.contains_key(&view_id)
 4816                        }) {
 4817                            anyhow::Ok(true)
 4818                        } else {
 4819                            anyhow::Ok(false)
 4820                        }
 4821                    } else {
 4822                        anyhow::Ok(false)
 4823                    }
 4824                })??;
 4825
 4826                if should_add_view && let Some(view) = update_active_view.view {
 4827                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4828                }
 4829            }
 4830            proto::update_followers::Variant::UpdateView(update_view) => {
 4831                let variant = update_view.variant.context("missing update view variant")?;
 4832                let id = update_view.id.context("missing update view id")?;
 4833                let mut tasks = Vec::new();
 4834                this.update_in(cx, |this, window, cx| {
 4835                    let project = this.project.clone();
 4836                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4837                        let view_id = ViewId::from_proto(id.clone())?;
 4838                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4839                            tasks.push(item.view.apply_update_proto(
 4840                                &project,
 4841                                variant.clone(),
 4842                                window,
 4843                                cx,
 4844                            ));
 4845                        }
 4846                    }
 4847                    anyhow::Ok(())
 4848                })??;
 4849                try_join_all(tasks).await.log_err();
 4850            }
 4851        }
 4852        this.update_in(cx, |this, window, cx| {
 4853            this.leader_updated(leader_id, window, cx)
 4854        })?;
 4855        Ok(())
 4856    }
 4857
 4858    async fn add_view_from_leader(
 4859        this: WeakEntity<Self>,
 4860        leader_id: PeerId,
 4861        view: &proto::View,
 4862        cx: &mut AsyncWindowContext,
 4863    ) -> Result<()> {
 4864        let this = this.upgrade().context("workspace dropped")?;
 4865
 4866        let Some(id) = view.id.clone() else {
 4867            anyhow::bail!("no id for view");
 4868        };
 4869        let id = ViewId::from_proto(id)?;
 4870        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 4871
 4872        let pane = this.update(cx, |this, _cx| {
 4873            let state = this
 4874                .follower_states
 4875                .get(&leader_id.into())
 4876                .context("stopped following")?;
 4877            anyhow::Ok(state.pane().clone())
 4878        })??;
 4879        let existing_item = pane.update_in(cx, |pane, window, cx| {
 4880            let client = this.read(cx).client().clone();
 4881            pane.items().find_map(|item| {
 4882                let item = item.to_followable_item_handle(cx)?;
 4883                if item.remote_id(&client, window, cx) == Some(id) {
 4884                    Some(item)
 4885                } else {
 4886                    None
 4887                }
 4888            })
 4889        })?;
 4890        let item = if let Some(existing_item) = existing_item {
 4891            existing_item
 4892        } else {
 4893            let variant = view.variant.clone();
 4894            anyhow::ensure!(variant.is_some(), "missing view variant");
 4895
 4896            let task = cx.update(|window, cx| {
 4897                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 4898            })?;
 4899
 4900            let Some(task) = task else {
 4901                anyhow::bail!(
 4902                    "failed to construct view from leader (maybe from a different version of zed?)"
 4903                );
 4904            };
 4905
 4906            let mut new_item = task.await?;
 4907            pane.update_in(cx, |pane, window, cx| {
 4908                let mut item_to_remove = None;
 4909                for (ix, item) in pane.items().enumerate() {
 4910                    if let Some(item) = item.to_followable_item_handle(cx) {
 4911                        match new_item.dedup(item.as_ref(), window, cx) {
 4912                            Some(item::Dedup::KeepExisting) => {
 4913                                new_item =
 4914                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 4915                                break;
 4916                            }
 4917                            Some(item::Dedup::ReplaceExisting) => {
 4918                                item_to_remove = Some((ix, item.item_id()));
 4919                                break;
 4920                            }
 4921                            None => {}
 4922                        }
 4923                    }
 4924                }
 4925
 4926                if let Some((ix, id)) = item_to_remove {
 4927                    pane.remove_item(id, false, false, window, cx);
 4928                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 4929                }
 4930            })?;
 4931
 4932            new_item
 4933        };
 4934
 4935        this.update_in(cx, |this, window, cx| {
 4936            let state = this.follower_states.get_mut(&leader_id.into())?;
 4937            item.set_leader_id(Some(leader_id.into()), window, cx);
 4938            state.items_by_leader_view_id.insert(
 4939                id,
 4940                FollowerView {
 4941                    view: item,
 4942                    location: panel_id,
 4943                },
 4944            );
 4945
 4946            Some(())
 4947        })?;
 4948
 4949        Ok(())
 4950    }
 4951
 4952    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4953        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 4954            return;
 4955        };
 4956
 4957        if let Some(agent_location) = self.project.read(cx).agent_location() {
 4958            let buffer_entity_id = agent_location.buffer.entity_id();
 4959            let view_id = ViewId {
 4960                creator: CollaboratorId::Agent,
 4961                id: buffer_entity_id.as_u64(),
 4962            };
 4963            follower_state.active_view_id = Some(view_id);
 4964
 4965            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 4966                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 4967                hash_map::Entry::Vacant(entry) => {
 4968                    let existing_view =
 4969                        follower_state
 4970                            .center_pane
 4971                            .read(cx)
 4972                            .items()
 4973                            .find_map(|item| {
 4974                                let item = item.to_followable_item_handle(cx)?;
 4975                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 4976                                    && item.project_item_model_ids(cx).as_slice()
 4977                                        == [buffer_entity_id]
 4978                                {
 4979                                    Some(item)
 4980                                } else {
 4981                                    None
 4982                                }
 4983                            });
 4984                    let view = existing_view.or_else(|| {
 4985                        agent_location.buffer.upgrade().and_then(|buffer| {
 4986                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 4987                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 4988                            })?
 4989                            .to_followable_item_handle(cx)
 4990                        })
 4991                    });
 4992
 4993                    view.map(|view| {
 4994                        entry.insert(FollowerView {
 4995                            view,
 4996                            location: None,
 4997                        })
 4998                    })
 4999                }
 5000            };
 5001
 5002            if let Some(item) = item {
 5003                item.view
 5004                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5005                item.view
 5006                    .update_agent_location(agent_location.position, window, cx);
 5007            }
 5008        } else {
 5009            follower_state.active_view_id = None;
 5010        }
 5011
 5012        self.leader_updated(CollaboratorId::Agent, window, cx);
 5013    }
 5014
 5015    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5016        let mut is_project_item = true;
 5017        let mut update = proto::UpdateActiveView::default();
 5018        if window.is_window_active() {
 5019            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5020
 5021            if let Some(item) = active_item
 5022                && item.item_focus_handle(cx).contains_focused(window, cx)
 5023            {
 5024                let leader_id = self
 5025                    .pane_for(&*item)
 5026                    .and_then(|pane| self.leader_for_pane(&pane));
 5027                let leader_peer_id = match leader_id {
 5028                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5029                    Some(CollaboratorId::Agent) | None => None,
 5030                };
 5031
 5032                if let Some(item) = item.to_followable_item_handle(cx) {
 5033                    let id = item
 5034                        .remote_id(&self.app_state.client, window, cx)
 5035                        .map(|id| id.to_proto());
 5036
 5037                    if let Some(id) = id
 5038                        && let Some(variant) = item.to_state_proto(window, cx)
 5039                    {
 5040                        let view = Some(proto::View {
 5041                            id: id.clone(),
 5042                            leader_id: leader_peer_id,
 5043                            variant: Some(variant),
 5044                            panel_id: panel_id.map(|id| id as i32),
 5045                        });
 5046
 5047                        is_project_item = item.is_project_item(window, cx);
 5048                        update = proto::UpdateActiveView {
 5049                            view,
 5050                            // TODO: Remove after version 0.145.x stabilizes.
 5051                            id,
 5052                            leader_id: leader_peer_id,
 5053                        };
 5054                    };
 5055                }
 5056            }
 5057        }
 5058
 5059        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5060        if active_view_id != self.last_active_view_id.as_ref() {
 5061            self.last_active_view_id = active_view_id.cloned();
 5062            self.update_followers(
 5063                is_project_item,
 5064                proto::update_followers::Variant::UpdateActiveView(update),
 5065                window,
 5066                cx,
 5067            );
 5068        }
 5069    }
 5070
 5071    fn active_item_for_followers(
 5072        &self,
 5073        window: &mut Window,
 5074        cx: &mut App,
 5075    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5076        let mut active_item = None;
 5077        let mut panel_id = None;
 5078        for dock in self.all_docks() {
 5079            if dock.focus_handle(cx).contains_focused(window, cx)
 5080                && let Some(panel) = dock.read(cx).active_panel()
 5081                && let Some(pane) = panel.pane(cx)
 5082                && let Some(item) = pane.read(cx).active_item()
 5083            {
 5084                active_item = Some(item);
 5085                panel_id = panel.remote_id();
 5086                break;
 5087            }
 5088        }
 5089
 5090        if active_item.is_none() {
 5091            active_item = self.active_pane().read(cx).active_item();
 5092        }
 5093        (active_item, panel_id)
 5094    }
 5095
 5096    fn update_followers(
 5097        &self,
 5098        project_only: bool,
 5099        update: proto::update_followers::Variant,
 5100        _: &mut Window,
 5101        cx: &mut App,
 5102    ) -> Option<()> {
 5103        // If this update only applies to for followers in the current project,
 5104        // then skip it unless this project is shared. If it applies to all
 5105        // followers, regardless of project, then set `project_id` to none,
 5106        // indicating that it goes to all followers.
 5107        let project_id = if project_only {
 5108            Some(self.project.read(cx).remote_id()?)
 5109        } else {
 5110            None
 5111        };
 5112        self.app_state().workspace_store.update(cx, |store, cx| {
 5113            store.update_followers(project_id, update, cx)
 5114        })
 5115    }
 5116
 5117    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5118        self.follower_states.iter().find_map(|(leader_id, state)| {
 5119            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5120                Some(*leader_id)
 5121            } else {
 5122                None
 5123            }
 5124        })
 5125    }
 5126
 5127    fn leader_updated(
 5128        &mut self,
 5129        leader_id: impl Into<CollaboratorId>,
 5130        window: &mut Window,
 5131        cx: &mut Context<Self>,
 5132    ) -> Option<Box<dyn ItemHandle>> {
 5133        cx.notify();
 5134
 5135        let leader_id = leader_id.into();
 5136        let (panel_id, item) = match leader_id {
 5137            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5138            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5139        };
 5140
 5141        let state = self.follower_states.get(&leader_id)?;
 5142        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5143        let pane;
 5144        if let Some(panel_id) = panel_id {
 5145            pane = self
 5146                .activate_panel_for_proto_id(panel_id, window, cx)?
 5147                .pane(cx)?;
 5148            let state = self.follower_states.get_mut(&leader_id)?;
 5149            state.dock_pane = Some(pane.clone());
 5150        } else {
 5151            pane = state.center_pane.clone();
 5152            let state = self.follower_states.get_mut(&leader_id)?;
 5153            if let Some(dock_pane) = state.dock_pane.take() {
 5154                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5155            }
 5156        }
 5157
 5158        pane.update(cx, |pane, cx| {
 5159            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5160            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5161                pane.activate_item(index, false, false, window, cx);
 5162            } else {
 5163                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5164            }
 5165
 5166            if focus_active_item {
 5167                pane.focus_active_item(window, cx)
 5168            }
 5169        });
 5170
 5171        Some(item)
 5172    }
 5173
 5174    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5175        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5176        let active_view_id = state.active_view_id?;
 5177        Some(
 5178            state
 5179                .items_by_leader_view_id
 5180                .get(&active_view_id)?
 5181                .view
 5182                .boxed_clone(),
 5183        )
 5184    }
 5185
 5186    fn active_item_for_peer(
 5187        &self,
 5188        peer_id: PeerId,
 5189        window: &mut Window,
 5190        cx: &mut Context<Self>,
 5191    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5192        let call = self.active_call()?;
 5193        let room = call.read(cx).room()?.read(cx);
 5194        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5195        let leader_in_this_app;
 5196        let leader_in_this_project;
 5197        match participant.location {
 5198            call::ParticipantLocation::SharedProject { project_id } => {
 5199                leader_in_this_app = true;
 5200                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5201            }
 5202            call::ParticipantLocation::UnsharedProject => {
 5203                leader_in_this_app = true;
 5204                leader_in_this_project = false;
 5205            }
 5206            call::ParticipantLocation::External => {
 5207                leader_in_this_app = false;
 5208                leader_in_this_project = false;
 5209            }
 5210        };
 5211        let state = self.follower_states.get(&peer_id.into())?;
 5212        let mut item_to_activate = None;
 5213        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5214            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5215                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5216            {
 5217                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5218            }
 5219        } else if let Some(shared_screen) =
 5220            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5221        {
 5222            item_to_activate = Some((None, Box::new(shared_screen)));
 5223        }
 5224        item_to_activate
 5225    }
 5226
 5227    fn shared_screen_for_peer(
 5228        &self,
 5229        peer_id: PeerId,
 5230        pane: &Entity<Pane>,
 5231        window: &mut Window,
 5232        cx: &mut App,
 5233    ) -> Option<Entity<SharedScreen>> {
 5234        let call = self.active_call()?;
 5235        let room = call.read(cx).room()?.clone();
 5236        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5237        let track = participant.video_tracks.values().next()?.clone();
 5238        let user = participant.user.clone();
 5239
 5240        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5241            if item.read(cx).peer_id == peer_id {
 5242                return Some(item);
 5243            }
 5244        }
 5245
 5246        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5247    }
 5248
 5249    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5250        if window.is_window_active() {
 5251            self.update_active_view_for_followers(window, cx);
 5252
 5253            if let Some(database_id) = self.database_id {
 5254                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5255                    .detach();
 5256            }
 5257        } else {
 5258            for pane in &self.panes {
 5259                pane.update(cx, |pane, cx| {
 5260                    if let Some(item) = pane.active_item() {
 5261                        item.workspace_deactivated(window, cx);
 5262                    }
 5263                    for item in pane.items() {
 5264                        if matches!(
 5265                            item.workspace_settings(cx).autosave,
 5266                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5267                        ) {
 5268                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5269                                .detach_and_log_err(cx);
 5270                        }
 5271                    }
 5272                });
 5273            }
 5274        }
 5275    }
 5276
 5277    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5278        self.active_call.as_ref().map(|(call, _)| call)
 5279    }
 5280
 5281    fn on_active_call_event(
 5282        &mut self,
 5283        _: &Entity<ActiveCall>,
 5284        event: &call::room::Event,
 5285        window: &mut Window,
 5286        cx: &mut Context<Self>,
 5287    ) {
 5288        match event {
 5289            call::room::Event::ParticipantLocationChanged { participant_id }
 5290            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5291                self.leader_updated(participant_id, window, cx);
 5292            }
 5293            _ => {}
 5294        }
 5295    }
 5296
 5297    pub fn database_id(&self) -> Option<WorkspaceId> {
 5298        self.database_id
 5299    }
 5300
 5301    pub fn session_id(&self) -> Option<String> {
 5302        self.session_id.clone()
 5303    }
 5304
 5305    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5306        let project = self.project().read(cx);
 5307        project
 5308            .visible_worktrees(cx)
 5309            .map(|worktree| worktree.read(cx).abs_path())
 5310            .collect::<Vec<_>>()
 5311    }
 5312
 5313    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5314        match member {
 5315            Member::Axis(PaneAxis { members, .. }) => {
 5316                for child in members.iter() {
 5317                    self.remove_panes(child.clone(), window, cx)
 5318                }
 5319            }
 5320            Member::Pane(pane) => {
 5321                self.force_remove_pane(&pane, &None, window, cx);
 5322            }
 5323        }
 5324    }
 5325
 5326    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5327        self.session_id.take();
 5328        self.serialize_workspace_internal(window, cx)
 5329    }
 5330
 5331    fn force_remove_pane(
 5332        &mut self,
 5333        pane: &Entity<Pane>,
 5334        focus_on: &Option<Entity<Pane>>,
 5335        window: &mut Window,
 5336        cx: &mut Context<Workspace>,
 5337    ) {
 5338        self.panes.retain(|p| p != pane);
 5339        if let Some(focus_on) = focus_on {
 5340            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5341        } else if self.active_pane() == pane {
 5342            self.panes
 5343                .last()
 5344                .unwrap()
 5345                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5346        }
 5347        if self.last_active_center_pane == Some(pane.downgrade()) {
 5348            self.last_active_center_pane = None;
 5349        }
 5350        cx.notify();
 5351    }
 5352
 5353    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5354        if self._schedule_serialize_workspace.is_none() {
 5355            self._schedule_serialize_workspace =
 5356                Some(cx.spawn_in(window, async move |this, cx| {
 5357                    cx.background_executor()
 5358                        .timer(SERIALIZATION_THROTTLE_TIME)
 5359                        .await;
 5360                    this.update_in(cx, |this, window, cx| {
 5361                        this.serialize_workspace_internal(window, cx).detach();
 5362                        this._schedule_serialize_workspace.take();
 5363                    })
 5364                    .log_err();
 5365                }));
 5366        }
 5367    }
 5368
 5369    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5370        let Some(database_id) = self.database_id() else {
 5371            return Task::ready(());
 5372        };
 5373
 5374        fn serialize_pane_handle(
 5375            pane_handle: &Entity<Pane>,
 5376            window: &mut Window,
 5377            cx: &mut App,
 5378        ) -> SerializedPane {
 5379            let (items, active, pinned_count) = {
 5380                let pane = pane_handle.read(cx);
 5381                let active_item_id = pane.active_item().map(|item| item.item_id());
 5382                (
 5383                    pane.items()
 5384                        .filter_map(|handle| {
 5385                            let handle = handle.to_serializable_item_handle(cx)?;
 5386
 5387                            Some(SerializedItem {
 5388                                kind: Arc::from(handle.serialized_item_kind()),
 5389                                item_id: handle.item_id().as_u64(),
 5390                                active: Some(handle.item_id()) == active_item_id,
 5391                                preview: pane.is_active_preview_item(handle.item_id()),
 5392                            })
 5393                        })
 5394                        .collect::<Vec<_>>(),
 5395                    pane.has_focus(window, cx),
 5396                    pane.pinned_count(),
 5397                )
 5398            };
 5399
 5400            SerializedPane::new(items, active, pinned_count)
 5401        }
 5402
 5403        fn build_serialized_pane_group(
 5404            pane_group: &Member,
 5405            window: &mut Window,
 5406            cx: &mut App,
 5407        ) -> SerializedPaneGroup {
 5408            match pane_group {
 5409                Member::Axis(PaneAxis {
 5410                    axis,
 5411                    members,
 5412                    flexes,
 5413                    bounding_boxes: _,
 5414                }) => SerializedPaneGroup::Group {
 5415                    axis: SerializedAxis(*axis),
 5416                    children: members
 5417                        .iter()
 5418                        .map(|member| build_serialized_pane_group(member, window, cx))
 5419                        .collect::<Vec<_>>(),
 5420                    flexes: Some(flexes.lock().clone()),
 5421                },
 5422                Member::Pane(pane_handle) => {
 5423                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5424                }
 5425            }
 5426        }
 5427
 5428        fn build_serialized_docks(
 5429            this: &Workspace,
 5430            window: &mut Window,
 5431            cx: &mut App,
 5432        ) -> DockStructure {
 5433            let left_dock = this.left_dock.read(cx);
 5434            let left_visible = left_dock.is_open();
 5435            let left_active_panel = left_dock
 5436                .active_panel()
 5437                .map(|panel| panel.persistent_name().to_string());
 5438            let left_dock_zoom = left_dock
 5439                .active_panel()
 5440                .map(|panel| panel.is_zoomed(window, cx))
 5441                .unwrap_or(false);
 5442
 5443            let right_dock = this.right_dock.read(cx);
 5444            let right_visible = right_dock.is_open();
 5445            let right_active_panel = right_dock
 5446                .active_panel()
 5447                .map(|panel| panel.persistent_name().to_string());
 5448            let right_dock_zoom = right_dock
 5449                .active_panel()
 5450                .map(|panel| panel.is_zoomed(window, cx))
 5451                .unwrap_or(false);
 5452
 5453            let bottom_dock = this.bottom_dock.read(cx);
 5454            let bottom_visible = bottom_dock.is_open();
 5455            let bottom_active_panel = bottom_dock
 5456                .active_panel()
 5457                .map(|panel| panel.persistent_name().to_string());
 5458            let bottom_dock_zoom = bottom_dock
 5459                .active_panel()
 5460                .map(|panel| panel.is_zoomed(window, cx))
 5461                .unwrap_or(false);
 5462
 5463            DockStructure {
 5464                left: DockData {
 5465                    visible: left_visible,
 5466                    active_panel: left_active_panel,
 5467                    zoom: left_dock_zoom,
 5468                },
 5469                right: DockData {
 5470                    visible: right_visible,
 5471                    active_panel: right_active_panel,
 5472                    zoom: right_dock_zoom,
 5473                },
 5474                bottom: DockData {
 5475                    visible: bottom_visible,
 5476                    active_panel: bottom_active_panel,
 5477                    zoom: bottom_dock_zoom,
 5478                },
 5479            }
 5480        }
 5481
 5482        match self.serialize_workspace_location(cx) {
 5483            WorkspaceLocation::Location(location, paths) => {
 5484                let breakpoints = self.project.update(cx, |project, cx| {
 5485                    project
 5486                        .breakpoint_store()
 5487                        .read(cx)
 5488                        .all_source_breakpoints(cx)
 5489                });
 5490                let user_toolchains = self
 5491                    .project
 5492                    .read(cx)
 5493                    .user_toolchains(cx)
 5494                    .unwrap_or_default();
 5495
 5496                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5497                let docks = build_serialized_docks(self, window, cx);
 5498                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5499
 5500                let serialized_workspace = SerializedWorkspace {
 5501                    id: database_id,
 5502                    location,
 5503                    paths,
 5504                    center_group,
 5505                    window_bounds,
 5506                    display: Default::default(),
 5507                    docks,
 5508                    centered_layout: self.centered_layout,
 5509                    session_id: self.session_id.clone(),
 5510                    breakpoints,
 5511                    window_id: Some(window.window_handle().window_id().as_u64()),
 5512                    user_toolchains,
 5513                };
 5514
 5515                window.spawn(cx, async move |_| {
 5516                    persistence::DB.save_workspace(serialized_workspace).await;
 5517                })
 5518            }
 5519            WorkspaceLocation::DetachFromSession => window.spawn(cx, async move |_| {
 5520                persistence::DB
 5521                    .set_session_id(database_id, None)
 5522                    .await
 5523                    .log_err();
 5524            }),
 5525            WorkspaceLocation::None => Task::ready(()),
 5526        }
 5527    }
 5528
 5529    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5530        let paths = PathList::new(&self.root_paths(cx));
 5531        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5532            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5533        } else if self.project.read(cx).is_local() {
 5534            if !paths.is_empty() {
 5535                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5536            } else {
 5537                WorkspaceLocation::DetachFromSession
 5538            }
 5539        } else {
 5540            WorkspaceLocation::None
 5541        }
 5542    }
 5543
 5544    fn update_history(&self, cx: &mut App) {
 5545        let Some(id) = self.database_id() else {
 5546            return;
 5547        };
 5548        if !self.project.read(cx).is_local() {
 5549            return;
 5550        }
 5551        if let Some(manager) = HistoryManager::global(cx) {
 5552            let paths = PathList::new(&self.root_paths(cx));
 5553            manager.update(cx, |this, cx| {
 5554                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5555            });
 5556        }
 5557    }
 5558
 5559    async fn serialize_items(
 5560        this: &WeakEntity<Self>,
 5561        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5562        cx: &mut AsyncWindowContext,
 5563    ) -> Result<()> {
 5564        const CHUNK_SIZE: usize = 200;
 5565
 5566        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5567
 5568        while let Some(items_received) = serializable_items.next().await {
 5569            let unique_items =
 5570                items_received
 5571                    .into_iter()
 5572                    .fold(HashMap::default(), |mut acc, item| {
 5573                        acc.entry(item.item_id()).or_insert(item);
 5574                        acc
 5575                    });
 5576
 5577            // We use into_iter() here so that the references to the items are moved into
 5578            // the tasks and not kept alive while we're sleeping.
 5579            for (_, item) in unique_items.into_iter() {
 5580                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5581                    item.serialize(workspace, false, window, cx)
 5582                }) {
 5583                    cx.background_spawn(async move { task.await.log_err() })
 5584                        .detach();
 5585                }
 5586            }
 5587
 5588            cx.background_executor()
 5589                .timer(SERIALIZATION_THROTTLE_TIME)
 5590                .await;
 5591        }
 5592
 5593        Ok(())
 5594    }
 5595
 5596    pub(crate) fn enqueue_item_serialization(
 5597        &mut self,
 5598        item: Box<dyn SerializableItemHandle>,
 5599    ) -> Result<()> {
 5600        self.serializable_items_tx
 5601            .unbounded_send(item)
 5602            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5603    }
 5604
 5605    pub(crate) fn load_workspace(
 5606        serialized_workspace: SerializedWorkspace,
 5607        paths_to_open: Vec<Option<ProjectPath>>,
 5608        window: &mut Window,
 5609        cx: &mut Context<Workspace>,
 5610    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5611        cx.spawn_in(window, async move |workspace, cx| {
 5612            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5613
 5614            let mut center_group = None;
 5615            let mut center_items = None;
 5616
 5617            // Traverse the splits tree and add to things
 5618            if let Some((group, active_pane, items)) = serialized_workspace
 5619                .center_group
 5620                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5621                .await
 5622            {
 5623                center_items = Some(items);
 5624                center_group = Some((group, active_pane))
 5625            }
 5626
 5627            let mut items_by_project_path = HashMap::default();
 5628            let mut item_ids_by_kind = HashMap::default();
 5629            let mut all_deserialized_items = Vec::default();
 5630            cx.update(|_, cx| {
 5631                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5632                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5633                        item_ids_by_kind
 5634                            .entry(serializable_item_handle.serialized_item_kind())
 5635                            .or_insert(Vec::new())
 5636                            .push(item.item_id().as_u64() as ItemId);
 5637                    }
 5638
 5639                    if let Some(project_path) = item.project_path(cx) {
 5640                        items_by_project_path.insert(project_path, item.clone());
 5641                    }
 5642                    all_deserialized_items.push(item);
 5643                }
 5644            })?;
 5645
 5646            let opened_items = paths_to_open
 5647                .into_iter()
 5648                .map(|path_to_open| {
 5649                    path_to_open
 5650                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5651                })
 5652                .collect::<Vec<_>>();
 5653
 5654            // Remove old panes from workspace panes list
 5655            workspace.update_in(cx, |workspace, window, cx| {
 5656                if let Some((center_group, active_pane)) = center_group {
 5657                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5658
 5659                    // Swap workspace center group
 5660                    workspace.center = PaneGroup::with_root(center_group);
 5661                    if let Some(active_pane) = active_pane {
 5662                        workspace.set_active_pane(&active_pane, window, cx);
 5663                        cx.focus_self(window);
 5664                    } else {
 5665                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5666                    }
 5667                }
 5668
 5669                let docks = serialized_workspace.docks;
 5670
 5671                for (dock, serialized_dock) in [
 5672                    (&mut workspace.right_dock, docks.right),
 5673                    (&mut workspace.left_dock, docks.left),
 5674                    (&mut workspace.bottom_dock, docks.bottom),
 5675                ]
 5676                .iter_mut()
 5677                {
 5678                    dock.update(cx, |dock, cx| {
 5679                        dock.serialized_dock = Some(serialized_dock.clone());
 5680                        dock.restore_state(window, cx);
 5681                    });
 5682                }
 5683
 5684                cx.notify();
 5685            })?;
 5686
 5687            let _ = project
 5688                .update(cx, |project, cx| {
 5689                    project
 5690                        .breakpoint_store()
 5691                        .update(cx, |breakpoint_store, cx| {
 5692                            breakpoint_store
 5693                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5694                        })
 5695                })?
 5696                .await;
 5697
 5698            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5699            // after loading the items, we might have different items and in order to avoid
 5700            // the database filling up, we delete items that haven't been loaded now.
 5701            //
 5702            // The items that have been loaded, have been saved after they've been added to the workspace.
 5703            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5704                item_ids_by_kind
 5705                    .into_iter()
 5706                    .map(|(item_kind, loaded_items)| {
 5707                        SerializableItemRegistry::cleanup(
 5708                            item_kind,
 5709                            serialized_workspace.id,
 5710                            loaded_items,
 5711                            window,
 5712                            cx,
 5713                        )
 5714                        .log_err()
 5715                    })
 5716                    .collect::<Vec<_>>()
 5717            })?;
 5718
 5719            futures::future::join_all(clean_up_tasks).await;
 5720
 5721            workspace
 5722                .update_in(cx, |workspace, window, cx| {
 5723                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5724                    workspace.serialize_workspace_internal(window, cx).detach();
 5725
 5726                    // Ensure that we mark the window as edited if we did load dirty items
 5727                    workspace.update_window_edited(window, cx);
 5728                })
 5729                .ok();
 5730
 5731            Ok(opened_items)
 5732        })
 5733    }
 5734
 5735    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5736        self.add_workspace_actions_listeners(div, window, cx)
 5737            .on_action(cx.listener(
 5738                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 5739                    for action in &action_sequence.0 {
 5740                        window.dispatch_action(action.boxed_clone(), cx);
 5741                    }
 5742                },
 5743            ))
 5744            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5745            .on_action(cx.listener(Self::close_all_items_and_panes))
 5746            .on_action(cx.listener(Self::save_all))
 5747            .on_action(cx.listener(Self::send_keystrokes))
 5748            .on_action(cx.listener(Self::add_folder_to_project))
 5749            .on_action(cx.listener(Self::follow_next_collaborator))
 5750            .on_action(cx.listener(Self::close_window))
 5751            .on_action(cx.listener(Self::activate_pane_at_index))
 5752            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5753            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5754            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5755            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5756                let pane = workspace.active_pane().clone();
 5757                workspace.unfollow_in_pane(&pane, window, cx);
 5758            }))
 5759            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5760                workspace
 5761                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5762                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5763            }))
 5764            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5765                workspace
 5766                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5767                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5768            }))
 5769            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5770                workspace
 5771                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5772                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5773            }))
 5774            .on_action(
 5775                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5776                    workspace.activate_previous_pane(window, cx)
 5777                }),
 5778            )
 5779            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5780                workspace.activate_next_pane(window, cx)
 5781            }))
 5782            .on_action(
 5783                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5784                    workspace.activate_next_window(cx)
 5785                }),
 5786            )
 5787            .on_action(
 5788                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5789                    workspace.activate_previous_window(cx)
 5790                }),
 5791            )
 5792            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5793                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5794            }))
 5795            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5796                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5797            }))
 5798            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5799                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5800            }))
 5801            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5802                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5803            }))
 5804            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5805                workspace.activate_next_pane(window, cx)
 5806            }))
 5807            .on_action(cx.listener(
 5808                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5809                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5810                },
 5811            ))
 5812            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5813                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5814            }))
 5815            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5816                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5817            }))
 5818            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5819                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5820            }))
 5821            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5822                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5823            }))
 5824            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 5825                workspace.move_pane_to_border(SplitDirection::Left, cx)
 5826            }))
 5827            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 5828                workspace.move_pane_to_border(SplitDirection::Right, cx)
 5829            }))
 5830            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 5831                workspace.move_pane_to_border(SplitDirection::Up, cx)
 5832            }))
 5833            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 5834                workspace.move_pane_to_border(SplitDirection::Down, cx)
 5835            }))
 5836            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 5837                this.toggle_dock(DockPosition::Left, window, cx);
 5838            }))
 5839            .on_action(cx.listener(
 5840                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 5841                    workspace.toggle_dock(DockPosition::Right, window, cx);
 5842                },
 5843            ))
 5844            .on_action(cx.listener(
 5845                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 5846                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 5847                },
 5848            ))
 5849            .on_action(cx.listener(
 5850                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 5851                    if !workspace.close_active_dock(window, cx) {
 5852                        cx.propagate();
 5853                    }
 5854                },
 5855            ))
 5856            .on_action(
 5857                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 5858                    workspace.close_all_docks(window, cx);
 5859                }),
 5860            )
 5861            .on_action(cx.listener(Self::toggle_all_docks))
 5862            .on_action(cx.listener(
 5863                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 5864                    workspace.clear_all_notifications(cx);
 5865                },
 5866            ))
 5867            .on_action(cx.listener(
 5868                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 5869                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 5870                        workspace.suppress_notification(&notification_id, cx);
 5871                    }
 5872                },
 5873            ))
 5874            .on_action(cx.listener(
 5875                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 5876                    workspace.reopen_closed_item(window, cx).detach();
 5877                },
 5878            ))
 5879            .on_action(cx.listener(
 5880                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 5881                    for dock in workspace.all_docks() {
 5882                        if dock.focus_handle(cx).contains_focused(window, cx) {
 5883                            let Some(panel) = dock.read(cx).active_panel() else {
 5884                                return;
 5885                            };
 5886
 5887                            // Set to `None`, then the size will fall back to the default.
 5888                            panel.clone().set_size(None, window, cx);
 5889
 5890                            return;
 5891                        }
 5892                    }
 5893                },
 5894            ))
 5895            .on_action(cx.listener(
 5896                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 5897                    for dock in workspace.all_docks() {
 5898                        if let Some(panel) = dock.read(cx).visible_panel() {
 5899                            // Set to `None`, then the size will fall back to the default.
 5900                            panel.clone().set_size(None, window, cx);
 5901                        }
 5902                    }
 5903                },
 5904            ))
 5905            .on_action(cx.listener(
 5906                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 5907                    adjust_active_dock_size_by_px(
 5908                        px_with_ui_font_fallback(act.px, cx),
 5909                        workspace,
 5910                        window,
 5911                        cx,
 5912                    );
 5913                },
 5914            ))
 5915            .on_action(cx.listener(
 5916                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 5917                    adjust_active_dock_size_by_px(
 5918                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5919                        workspace,
 5920                        window,
 5921                        cx,
 5922                    );
 5923                },
 5924            ))
 5925            .on_action(cx.listener(
 5926                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 5927                    adjust_open_docks_size_by_px(
 5928                        px_with_ui_font_fallback(act.px, cx),
 5929                        workspace,
 5930                        window,
 5931                        cx,
 5932                    );
 5933                },
 5934            ))
 5935            .on_action(cx.listener(
 5936                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 5937                    adjust_open_docks_size_by_px(
 5938                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5939                        workspace,
 5940                        window,
 5941                        cx,
 5942                    );
 5943                },
 5944            ))
 5945            .on_action(cx.listener(Workspace::toggle_centered_layout))
 5946            .on_action(cx.listener(Workspace::cancel))
 5947    }
 5948
 5949    #[cfg(any(test, feature = "test-support"))]
 5950    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 5951        use node_runtime::NodeRuntime;
 5952        use session::Session;
 5953
 5954        let client = project.read(cx).client();
 5955        let user_store = project.read(cx).user_store();
 5956        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 5957        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 5958        window.activate_window();
 5959        let app_state = Arc::new(AppState {
 5960            languages: project.read(cx).languages().clone(),
 5961            workspace_store,
 5962            client,
 5963            user_store,
 5964            fs: project.read(cx).fs().clone(),
 5965            build_window_options: |_, _| Default::default(),
 5966            node_runtime: NodeRuntime::unavailable(),
 5967            session,
 5968        });
 5969        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 5970        workspace
 5971            .active_pane
 5972            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5973        workspace
 5974    }
 5975
 5976    pub fn register_action<A: Action>(
 5977        &mut self,
 5978        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 5979    ) -> &mut Self {
 5980        let callback = Arc::new(callback);
 5981
 5982        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 5983            let callback = callback.clone();
 5984            div.on_action(cx.listener(move |workspace, event, window, cx| {
 5985                (callback)(workspace, event, window, cx)
 5986            }))
 5987        }));
 5988        self
 5989    }
 5990    pub fn register_action_renderer(
 5991        &mut self,
 5992        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 5993    ) -> &mut Self {
 5994        self.workspace_actions.push(Box::new(callback));
 5995        self
 5996    }
 5997
 5998    fn add_workspace_actions_listeners(
 5999        &self,
 6000        mut div: Div,
 6001        window: &mut Window,
 6002        cx: &mut Context<Self>,
 6003    ) -> Div {
 6004        for action in self.workspace_actions.iter() {
 6005            div = (action)(div, self, window, cx)
 6006        }
 6007        div
 6008    }
 6009
 6010    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6011        self.modal_layer.read(cx).has_active_modal()
 6012    }
 6013
 6014    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6015        self.modal_layer.read(cx).active_modal()
 6016    }
 6017
 6018    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6019    where
 6020        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6021    {
 6022        self.modal_layer.update(cx, |modal_layer, cx| {
 6023            modal_layer.toggle_modal(window, cx, build)
 6024        })
 6025    }
 6026
 6027    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6028        self.modal_layer
 6029            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6030    }
 6031
 6032    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6033        self.toast_layer
 6034            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6035    }
 6036
 6037    pub fn toggle_centered_layout(
 6038        &mut self,
 6039        _: &ToggleCenteredLayout,
 6040        _: &mut Window,
 6041        cx: &mut Context<Self>,
 6042    ) {
 6043        self.centered_layout = !self.centered_layout;
 6044        if let Some(database_id) = self.database_id() {
 6045            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6046                .detach_and_log_err(cx);
 6047        }
 6048        cx.notify();
 6049    }
 6050
 6051    fn adjust_padding(padding: Option<f32>) -> f32 {
 6052        padding
 6053            .unwrap_or(CenteredPaddingSettings::default().0)
 6054            .clamp(
 6055                CenteredPaddingSettings::MIN_PADDING,
 6056                CenteredPaddingSettings::MAX_PADDING,
 6057            )
 6058    }
 6059
 6060    fn render_dock(
 6061        &self,
 6062        position: DockPosition,
 6063        dock: &Entity<Dock>,
 6064        window: &mut Window,
 6065        cx: &mut App,
 6066    ) -> Option<Div> {
 6067        if self.zoomed_position == Some(position) {
 6068            return None;
 6069        }
 6070
 6071        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6072            let pane = panel.pane(cx)?;
 6073            let follower_states = &self.follower_states;
 6074            leader_border_for_pane(follower_states, &pane, window, cx)
 6075        });
 6076
 6077        Some(
 6078            div()
 6079                .flex()
 6080                .flex_none()
 6081                .overflow_hidden()
 6082                .child(dock.clone())
 6083                .children(leader_border),
 6084        )
 6085    }
 6086
 6087    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6088        window.root().flatten()
 6089    }
 6090
 6091    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6092        self.zoomed.as_ref()
 6093    }
 6094
 6095    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6096        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6097            return;
 6098        };
 6099        let windows = cx.windows();
 6100        let next_window =
 6101            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6102                || {
 6103                    windows
 6104                        .iter()
 6105                        .cycle()
 6106                        .skip_while(|window| window.window_id() != current_window_id)
 6107                        .nth(1)
 6108                },
 6109            );
 6110
 6111        if let Some(window) = next_window {
 6112            window
 6113                .update(cx, |_, window, _| window.activate_window())
 6114                .ok();
 6115        }
 6116    }
 6117
 6118    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6119        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6120            return;
 6121        };
 6122        let windows = cx.windows();
 6123        let prev_window =
 6124            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6125                || {
 6126                    windows
 6127                        .iter()
 6128                        .rev()
 6129                        .cycle()
 6130                        .skip_while(|window| window.window_id() != current_window_id)
 6131                        .nth(1)
 6132                },
 6133            );
 6134
 6135        if let Some(window) = prev_window {
 6136            window
 6137                .update(cx, |_, window, _| window.activate_window())
 6138                .ok();
 6139        }
 6140    }
 6141
 6142    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6143        if cx.stop_active_drag(window) {
 6144        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6145            dismiss_app_notification(&notification_id, cx);
 6146        } else {
 6147            cx.propagate();
 6148        }
 6149    }
 6150
 6151    fn adjust_dock_size_by_px(
 6152        &mut self,
 6153        panel_size: Pixels,
 6154        dock_pos: DockPosition,
 6155        px: Pixels,
 6156        window: &mut Window,
 6157        cx: &mut Context<Self>,
 6158    ) {
 6159        match dock_pos {
 6160            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6161            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6162            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6163        }
 6164    }
 6165
 6166    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6167        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6168
 6169        self.left_dock.update(cx, |left_dock, cx| {
 6170            if WorkspaceSettings::get_global(cx)
 6171                .resize_all_panels_in_dock
 6172                .contains(&DockPosition::Left)
 6173            {
 6174                left_dock.resize_all_panels(Some(size), window, cx);
 6175            } else {
 6176                left_dock.resize_active_panel(Some(size), window, cx);
 6177            }
 6178        });
 6179    }
 6180
 6181    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6182        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6183        self.left_dock.read_with(cx, |left_dock, cx| {
 6184            let left_dock_size = left_dock
 6185                .active_panel_size(window, cx)
 6186                .unwrap_or(Pixels::ZERO);
 6187            if left_dock_size + size > self.bounds.right() {
 6188                size = self.bounds.right() - left_dock_size
 6189            }
 6190        });
 6191        self.right_dock.update(cx, |right_dock, cx| {
 6192            if WorkspaceSettings::get_global(cx)
 6193                .resize_all_panels_in_dock
 6194                .contains(&DockPosition::Right)
 6195            {
 6196                right_dock.resize_all_panels(Some(size), window, cx);
 6197            } else {
 6198                right_dock.resize_active_panel(Some(size), window, cx);
 6199            }
 6200        });
 6201    }
 6202
 6203    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6204        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6205        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6206            if WorkspaceSettings::get_global(cx)
 6207                .resize_all_panels_in_dock
 6208                .contains(&DockPosition::Bottom)
 6209            {
 6210                bottom_dock.resize_all_panels(Some(size), window, cx);
 6211            } else {
 6212                bottom_dock.resize_active_panel(Some(size), window, cx);
 6213            }
 6214        });
 6215    }
 6216
 6217    fn toggle_edit_predictions_all_files(
 6218        &mut self,
 6219        _: &ToggleEditPrediction,
 6220        _window: &mut Window,
 6221        cx: &mut Context<Self>,
 6222    ) {
 6223        let fs = self.project().read(cx).fs().clone();
 6224        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6225        update_settings_file(fs, cx, move |file, _| {
 6226            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6227        });
 6228    }
 6229}
 6230
 6231fn leader_border_for_pane(
 6232    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6233    pane: &Entity<Pane>,
 6234    _: &Window,
 6235    cx: &App,
 6236) -> Option<Div> {
 6237    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6238        if state.pane() == pane {
 6239            Some((*leader_id, state))
 6240        } else {
 6241            None
 6242        }
 6243    })?;
 6244
 6245    let mut leader_color = match leader_id {
 6246        CollaboratorId::PeerId(leader_peer_id) => {
 6247            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6248            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6249
 6250            cx.theme()
 6251                .players()
 6252                .color_for_participant(leader.participant_index.0)
 6253                .cursor
 6254        }
 6255        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6256    };
 6257    leader_color.fade_out(0.3);
 6258    Some(
 6259        div()
 6260            .absolute()
 6261            .size_full()
 6262            .left_0()
 6263            .top_0()
 6264            .border_2()
 6265            .border_color(leader_color),
 6266    )
 6267}
 6268
 6269fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6270    ZED_WINDOW_POSITION
 6271        .zip(*ZED_WINDOW_SIZE)
 6272        .map(|(position, size)| Bounds {
 6273            origin: position,
 6274            size,
 6275        })
 6276}
 6277
 6278fn open_items(
 6279    serialized_workspace: Option<SerializedWorkspace>,
 6280    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6281    window: &mut Window,
 6282    cx: &mut Context<Workspace>,
 6283) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6284    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6285        Workspace::load_workspace(
 6286            serialized_workspace,
 6287            project_paths_to_open
 6288                .iter()
 6289                .map(|(_, project_path)| project_path)
 6290                .cloned()
 6291                .collect(),
 6292            window,
 6293            cx,
 6294        )
 6295    });
 6296
 6297    cx.spawn_in(window, async move |workspace, cx| {
 6298        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6299
 6300        if let Some(restored_items) = restored_items {
 6301            let restored_items = restored_items.await?;
 6302
 6303            let restored_project_paths = restored_items
 6304                .iter()
 6305                .filter_map(|item| {
 6306                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6307                        .ok()
 6308                        .flatten()
 6309                })
 6310                .collect::<HashSet<_>>();
 6311
 6312            for restored_item in restored_items {
 6313                opened_items.push(restored_item.map(Ok));
 6314            }
 6315
 6316            project_paths_to_open
 6317                .iter_mut()
 6318                .for_each(|(_, project_path)| {
 6319                    if let Some(project_path_to_open) = project_path
 6320                        && restored_project_paths.contains(project_path_to_open)
 6321                    {
 6322                        *project_path = None;
 6323                    }
 6324                });
 6325        } else {
 6326            for _ in 0..project_paths_to_open.len() {
 6327                opened_items.push(None);
 6328            }
 6329        }
 6330        assert!(opened_items.len() == project_paths_to_open.len());
 6331
 6332        let tasks =
 6333            project_paths_to_open
 6334                .into_iter()
 6335                .enumerate()
 6336                .map(|(ix, (abs_path, project_path))| {
 6337                    let workspace = workspace.clone();
 6338                    cx.spawn(async move |cx| {
 6339                        let file_project_path = project_path?;
 6340                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6341                            workspace.project().update(cx, |project, cx| {
 6342                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6343                            })
 6344                        });
 6345
 6346                        // We only want to open file paths here. If one of the items
 6347                        // here is a directory, it was already opened further above
 6348                        // with a `find_or_create_worktree`.
 6349                        if let Ok(task) = abs_path_task
 6350                            && task.await.is_none_or(|p| p.is_file())
 6351                        {
 6352                            return Some((
 6353                                ix,
 6354                                workspace
 6355                                    .update_in(cx, |workspace, window, cx| {
 6356                                        workspace.open_path(
 6357                                            file_project_path,
 6358                                            None,
 6359                                            true,
 6360                                            window,
 6361                                            cx,
 6362                                        )
 6363                                    })
 6364                                    .log_err()?
 6365                                    .await,
 6366                            ));
 6367                        }
 6368                        None
 6369                    })
 6370                });
 6371
 6372        let tasks = tasks.collect::<Vec<_>>();
 6373
 6374        let tasks = futures::future::join_all(tasks);
 6375        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6376            opened_items[ix] = Some(path_open_result);
 6377        }
 6378
 6379        Ok(opened_items)
 6380    })
 6381}
 6382
 6383enum ActivateInDirectionTarget {
 6384    Pane(Entity<Pane>),
 6385    Dock(Entity<Dock>),
 6386}
 6387
 6388fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6389    workspace
 6390        .update(cx, |workspace, _, cx| {
 6391            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6392                struct DatabaseFailedNotification;
 6393
 6394                workspace.show_notification(
 6395                    NotificationId::unique::<DatabaseFailedNotification>(),
 6396                    cx,
 6397                    |cx| {
 6398                        cx.new(|cx| {
 6399                            MessageNotification::new("Failed to load the database file.", cx)
 6400                                .primary_message("File an Issue")
 6401                                .primary_icon(IconName::Plus)
 6402                                .primary_on_click(|window, cx| {
 6403                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6404                                })
 6405                        })
 6406                    },
 6407                );
 6408            }
 6409        })
 6410        .log_err();
 6411}
 6412
 6413fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6414    if val == 0 {
 6415        ThemeSettings::get_global(cx).ui_font_size(cx)
 6416    } else {
 6417        px(val as f32)
 6418    }
 6419}
 6420
 6421fn adjust_active_dock_size_by_px(
 6422    px: Pixels,
 6423    workspace: &mut Workspace,
 6424    window: &mut Window,
 6425    cx: &mut Context<Workspace>,
 6426) {
 6427    let Some(active_dock) = workspace
 6428        .all_docks()
 6429        .into_iter()
 6430        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6431    else {
 6432        return;
 6433    };
 6434    let dock = active_dock.read(cx);
 6435    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6436        return;
 6437    };
 6438    let dock_pos = dock.position();
 6439    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6440}
 6441
 6442fn adjust_open_docks_size_by_px(
 6443    px: Pixels,
 6444    workspace: &mut Workspace,
 6445    window: &mut Window,
 6446    cx: &mut Context<Workspace>,
 6447) {
 6448    let docks = workspace
 6449        .all_docks()
 6450        .into_iter()
 6451        .filter_map(|dock| {
 6452            if dock.read(cx).is_open() {
 6453                let dock = dock.read(cx);
 6454                let panel_size = dock.active_panel_size(window, cx)?;
 6455                let dock_pos = dock.position();
 6456                Some((panel_size, dock_pos, px))
 6457            } else {
 6458                None
 6459            }
 6460        })
 6461        .collect::<Vec<_>>();
 6462
 6463    docks
 6464        .into_iter()
 6465        .for_each(|(panel_size, dock_pos, offset)| {
 6466            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6467        });
 6468}
 6469
 6470impl Focusable for Workspace {
 6471    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6472        self.active_pane.focus_handle(cx)
 6473    }
 6474}
 6475
 6476#[derive(Clone)]
 6477struct DraggedDock(DockPosition);
 6478
 6479impl Render for DraggedDock {
 6480    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6481        gpui::Empty
 6482    }
 6483}
 6484
 6485impl Render for Workspace {
 6486    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6487        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 6488        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 6489            log::info!("Rendered first frame");
 6490        }
 6491        let mut context = KeyContext::new_with_defaults();
 6492        context.add("Workspace");
 6493        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6494        if let Some(status) = self
 6495            .debugger_provider
 6496            .as_ref()
 6497            .and_then(|provider| provider.active_thread_state(cx))
 6498        {
 6499            match status {
 6500                ThreadStatus::Running | ThreadStatus::Stepping => {
 6501                    context.add("debugger_running");
 6502                }
 6503                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6504                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6505            }
 6506        }
 6507
 6508        if self.left_dock.read(cx).is_open() {
 6509            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6510                context.set("left_dock", active_panel.panel_key());
 6511            }
 6512        }
 6513
 6514        if self.right_dock.read(cx).is_open() {
 6515            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6516                context.set("right_dock", active_panel.panel_key());
 6517            }
 6518        }
 6519
 6520        if self.bottom_dock.read(cx).is_open() {
 6521            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6522                context.set("bottom_dock", active_panel.panel_key());
 6523            }
 6524        }
 6525
 6526        let centered_layout = self.centered_layout
 6527            && self.center.panes().len() == 1
 6528            && self.active_item(cx).is_some();
 6529        let render_padding = |size| {
 6530            (size > 0.0).then(|| {
 6531                div()
 6532                    .h_full()
 6533                    .w(relative(size))
 6534                    .bg(cx.theme().colors().editor_background)
 6535                    .border_color(cx.theme().colors().pane_group_border)
 6536            })
 6537        };
 6538        let paddings = if centered_layout {
 6539            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6540            (
 6541                render_padding(Self::adjust_padding(
 6542                    settings.left_padding.map(|padding| padding.0),
 6543                )),
 6544                render_padding(Self::adjust_padding(
 6545                    settings.right_padding.map(|padding| padding.0),
 6546                )),
 6547            )
 6548        } else {
 6549            (None, None)
 6550        };
 6551        let ui_font = theme::setup_ui_font(window, cx);
 6552
 6553        let theme = cx.theme().clone();
 6554        let colors = theme.colors();
 6555        let notification_entities = self
 6556            .notifications
 6557            .iter()
 6558            .map(|(_, notification)| notification.entity_id())
 6559            .collect::<Vec<_>>();
 6560        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6561
 6562        client_side_decorations(
 6563            self.actions(div(), window, cx)
 6564                .key_context(context)
 6565                .relative()
 6566                .size_full()
 6567                .flex()
 6568                .flex_col()
 6569                .font(ui_font)
 6570                .gap_0()
 6571                .justify_start()
 6572                .items_start()
 6573                .text_color(colors.text)
 6574                .overflow_hidden()
 6575                .children(self.titlebar_item.clone())
 6576                .on_modifiers_changed(move |_, _, cx| {
 6577                    for &id in &notification_entities {
 6578                        cx.notify(id);
 6579                    }
 6580                })
 6581                .child(
 6582                    div()
 6583                        .size_full()
 6584                        .relative()
 6585                        .flex_1()
 6586                        .flex()
 6587                        .flex_col()
 6588                        .child(
 6589                            div()
 6590                                .id("workspace")
 6591                                .bg(colors.background)
 6592                                .relative()
 6593                                .flex_1()
 6594                                .w_full()
 6595                                .flex()
 6596                                .flex_col()
 6597                                .overflow_hidden()
 6598                                .border_t_1()
 6599                                .border_b_1()
 6600                                .border_color(colors.border)
 6601                                .child({
 6602                                    let this = cx.entity();
 6603                                    canvas(
 6604                                        move |bounds, window, cx| {
 6605                                            this.update(cx, |this, cx| {
 6606                                                let bounds_changed = this.bounds != bounds;
 6607                                                this.bounds = bounds;
 6608
 6609                                                if bounds_changed {
 6610                                                    this.left_dock.update(cx, |dock, cx| {
 6611                                                        dock.clamp_panel_size(
 6612                                                            bounds.size.width,
 6613                                                            window,
 6614                                                            cx,
 6615                                                        )
 6616                                                    });
 6617
 6618                                                    this.right_dock.update(cx, |dock, cx| {
 6619                                                        dock.clamp_panel_size(
 6620                                                            bounds.size.width,
 6621                                                            window,
 6622                                                            cx,
 6623                                                        )
 6624                                                    });
 6625
 6626                                                    this.bottom_dock.update(cx, |dock, cx| {
 6627                                                        dock.clamp_panel_size(
 6628                                                            bounds.size.height,
 6629                                                            window,
 6630                                                            cx,
 6631                                                        )
 6632                                                    });
 6633                                                }
 6634                                            })
 6635                                        },
 6636                                        |_, _, _, _| {},
 6637                                    )
 6638                                    .absolute()
 6639                                    .size_full()
 6640                                })
 6641                                .when(self.zoomed.is_none(), |this| {
 6642                                    this.on_drag_move(cx.listener(
 6643                                        move |workspace,
 6644                                              e: &DragMoveEvent<DraggedDock>,
 6645                                              window,
 6646                                              cx| {
 6647                                            if workspace.previous_dock_drag_coordinates
 6648                                                != Some(e.event.position)
 6649                                            {
 6650                                                workspace.previous_dock_drag_coordinates =
 6651                                                    Some(e.event.position);
 6652                                                match e.drag(cx).0 {
 6653                                                    DockPosition::Left => {
 6654                                                        workspace.resize_left_dock(
 6655                                                            e.event.position.x
 6656                                                                - workspace.bounds.left(),
 6657                                                            window,
 6658                                                            cx,
 6659                                                        );
 6660                                                    }
 6661                                                    DockPosition::Right => {
 6662                                                        workspace.resize_right_dock(
 6663                                                            workspace.bounds.right()
 6664                                                                - e.event.position.x,
 6665                                                            window,
 6666                                                            cx,
 6667                                                        );
 6668                                                    }
 6669                                                    DockPosition::Bottom => {
 6670                                                        workspace.resize_bottom_dock(
 6671                                                            workspace.bounds.bottom()
 6672                                                                - e.event.position.y,
 6673                                                            window,
 6674                                                            cx,
 6675                                                        );
 6676                                                    }
 6677                                                };
 6678                                                workspace.serialize_workspace(window, cx);
 6679                                            }
 6680                                        },
 6681                                    ))
 6682                                })
 6683                                .child({
 6684                                    match bottom_dock_layout {
 6685                                        BottomDockLayout::Full => div()
 6686                                            .flex()
 6687                                            .flex_col()
 6688                                            .h_full()
 6689                                            .child(
 6690                                                div()
 6691                                                    .flex()
 6692                                                    .flex_row()
 6693                                                    .flex_1()
 6694                                                    .overflow_hidden()
 6695                                                    .children(self.render_dock(
 6696                                                        DockPosition::Left,
 6697                                                        &self.left_dock,
 6698                                                        window,
 6699                                                        cx,
 6700                                                    ))
 6701                                                    .child(
 6702                                                        div()
 6703                                                            .flex()
 6704                                                            .flex_col()
 6705                                                            .flex_1()
 6706                                                            .overflow_hidden()
 6707                                                            .child(
 6708                                                                h_flex()
 6709                                                                    .flex_1()
 6710                                                                    .when_some(
 6711                                                                        paddings.0,
 6712                                                                        |this, p| {
 6713                                                                            this.child(
 6714                                                                                p.border_r_1(),
 6715                                                                            )
 6716                                                                        },
 6717                                                                    )
 6718                                                                    .child(self.center.render(
 6719                                                                        self.zoomed.as_ref(),
 6720                                                                        &PaneRenderContext {
 6721                                                                            follower_states:
 6722                                                                                &self.follower_states,
 6723                                                                            active_call: self.active_call(),
 6724                                                                            active_pane: &self.active_pane,
 6725                                                                            app_state: &self.app_state,
 6726                                                                            project: &self.project,
 6727                                                                            workspace: &self.weak_self,
 6728                                                                        },
 6729                                                                        window,
 6730                                                                        cx,
 6731                                                                    ))
 6732                                                                    .when_some(
 6733                                                                        paddings.1,
 6734                                                                        |this, p| {
 6735                                                                            this.child(
 6736                                                                                p.border_l_1(),
 6737                                                                            )
 6738                                                                        },
 6739                                                                    ),
 6740                                                            ),
 6741                                                    )
 6742                                                    .children(self.render_dock(
 6743                                                        DockPosition::Right,
 6744                                                        &self.right_dock,
 6745                                                        window,
 6746                                                        cx,
 6747                                                    )),
 6748                                            )
 6749                                            .child(div().w_full().children(self.render_dock(
 6750                                                DockPosition::Bottom,
 6751                                                &self.bottom_dock,
 6752                                                window,
 6753                                                cx
 6754                                            ))),
 6755
 6756                                        BottomDockLayout::LeftAligned => div()
 6757                                            .flex()
 6758                                            .flex_row()
 6759                                            .h_full()
 6760                                            .child(
 6761                                                div()
 6762                                                    .flex()
 6763                                                    .flex_col()
 6764                                                    .flex_1()
 6765                                                    .h_full()
 6766                                                    .child(
 6767                                                        div()
 6768                                                            .flex()
 6769                                                            .flex_row()
 6770                                                            .flex_1()
 6771                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 6772                                                            .child(
 6773                                                                div()
 6774                                                                    .flex()
 6775                                                                    .flex_col()
 6776                                                                    .flex_1()
 6777                                                                    .overflow_hidden()
 6778                                                                    .child(
 6779                                                                        h_flex()
 6780                                                                            .flex_1()
 6781                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6782                                                                            .child(self.center.render(
 6783                                                                                self.zoomed.as_ref(),
 6784                                                                                &PaneRenderContext {
 6785                                                                                    follower_states:
 6786                                                                                        &self.follower_states,
 6787                                                                                    active_call: self.active_call(),
 6788                                                                                    active_pane: &self.active_pane,
 6789                                                                                    app_state: &self.app_state,
 6790                                                                                    project: &self.project,
 6791                                                                                    workspace: &self.weak_self,
 6792                                                                                },
 6793                                                                                window,
 6794                                                                                cx,
 6795                                                                            ))
 6796                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6797                                                                    )
 6798                                                            )
 6799                                                    )
 6800                                                    .child(
 6801                                                        div()
 6802                                                            .w_full()
 6803                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6804                                                    ),
 6805                                            )
 6806                                            .children(self.render_dock(
 6807                                                DockPosition::Right,
 6808                                                &self.right_dock,
 6809                                                window,
 6810                                                cx,
 6811                                            )),
 6812
 6813                                        BottomDockLayout::RightAligned => div()
 6814                                            .flex()
 6815                                            .flex_row()
 6816                                            .h_full()
 6817                                            .children(self.render_dock(
 6818                                                DockPosition::Left,
 6819                                                &self.left_dock,
 6820                                                window,
 6821                                                cx,
 6822                                            ))
 6823                                            .child(
 6824                                                div()
 6825                                                    .flex()
 6826                                                    .flex_col()
 6827                                                    .flex_1()
 6828                                                    .h_full()
 6829                                                    .child(
 6830                                                        div()
 6831                                                            .flex()
 6832                                                            .flex_row()
 6833                                                            .flex_1()
 6834                                                            .child(
 6835                                                                div()
 6836                                                                    .flex()
 6837                                                                    .flex_col()
 6838                                                                    .flex_1()
 6839                                                                    .overflow_hidden()
 6840                                                                    .child(
 6841                                                                        h_flex()
 6842                                                                            .flex_1()
 6843                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6844                                                                            .child(self.center.render(
 6845                                                                                self.zoomed.as_ref(),
 6846                                                                                &PaneRenderContext {
 6847                                                                                    follower_states:
 6848                                                                                        &self.follower_states,
 6849                                                                                    active_call: self.active_call(),
 6850                                                                                    active_pane: &self.active_pane,
 6851                                                                                    app_state: &self.app_state,
 6852                                                                                    project: &self.project,
 6853                                                                                    workspace: &self.weak_self,
 6854                                                                                },
 6855                                                                                window,
 6856                                                                                cx,
 6857                                                                            ))
 6858                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6859                                                                    )
 6860                                                            )
 6861                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 6862                                                    )
 6863                                                    .child(
 6864                                                        div()
 6865                                                            .w_full()
 6866                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6867                                                    ),
 6868                                            ),
 6869
 6870                                        BottomDockLayout::Contained => div()
 6871                                            .flex()
 6872                                            .flex_row()
 6873                                            .h_full()
 6874                                            .children(self.render_dock(
 6875                                                DockPosition::Left,
 6876                                                &self.left_dock,
 6877                                                window,
 6878                                                cx,
 6879                                            ))
 6880                                            .child(
 6881                                                div()
 6882                                                    .flex()
 6883                                                    .flex_col()
 6884                                                    .flex_1()
 6885                                                    .overflow_hidden()
 6886                                                    .child(
 6887                                                        h_flex()
 6888                                                            .flex_1()
 6889                                                            .when_some(paddings.0, |this, p| {
 6890                                                                this.child(p.border_r_1())
 6891                                                            })
 6892                                                            .child(self.center.render(
 6893                                                                self.zoomed.as_ref(),
 6894                                                                &PaneRenderContext {
 6895                                                                    follower_states:
 6896                                                                        &self.follower_states,
 6897                                                                    active_call: self.active_call(),
 6898                                                                    active_pane: &self.active_pane,
 6899                                                                    app_state: &self.app_state,
 6900                                                                    project: &self.project,
 6901                                                                    workspace: &self.weak_self,
 6902                                                                },
 6903                                                                window,
 6904                                                                cx,
 6905                                                            ))
 6906                                                            .when_some(paddings.1, |this, p| {
 6907                                                                this.child(p.border_l_1())
 6908                                                            }),
 6909                                                    )
 6910                                                    .children(self.render_dock(
 6911                                                        DockPosition::Bottom,
 6912                                                        &self.bottom_dock,
 6913                                                        window,
 6914                                                        cx,
 6915                                                    )),
 6916                                            )
 6917                                            .children(self.render_dock(
 6918                                                DockPosition::Right,
 6919                                                &self.right_dock,
 6920                                                window,
 6921                                                cx,
 6922                                            )),
 6923                                    }
 6924                                })
 6925                                .children(self.zoomed.as_ref().and_then(|view| {
 6926                                    let zoomed_view = view.upgrade()?;
 6927                                    let div = div()
 6928                                        .occlude()
 6929                                        .absolute()
 6930                                        .overflow_hidden()
 6931                                        .border_color(colors.border)
 6932                                        .bg(colors.background)
 6933                                        .child(zoomed_view)
 6934                                        .inset_0()
 6935                                        .shadow_lg();
 6936
 6937                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 6938                                       return Some(div);
 6939                                    }
 6940
 6941                                    Some(match self.zoomed_position {
 6942                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 6943                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 6944                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 6945                                        None => {
 6946                                            div.top_2().bottom_2().left_2().right_2().border_1()
 6947                                        }
 6948                                    })
 6949                                }))
 6950                                .children(self.render_notifications(window, cx)),
 6951                        )
 6952                        .when(self.status_bar_visible(cx), |parent| {
 6953                            parent.child(self.status_bar.clone())
 6954                        })
 6955                        .child(self.modal_layer.clone())
 6956                        .child(self.toast_layer.clone()),
 6957                ),
 6958            window,
 6959            cx,
 6960        )
 6961    }
 6962}
 6963
 6964impl WorkspaceStore {
 6965    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 6966        Self {
 6967            workspaces: Default::default(),
 6968            _subscriptions: vec![
 6969                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 6970                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 6971            ],
 6972            client,
 6973        }
 6974    }
 6975
 6976    pub fn update_followers(
 6977        &self,
 6978        project_id: Option<u64>,
 6979        update: proto::update_followers::Variant,
 6980        cx: &App,
 6981    ) -> Option<()> {
 6982        let active_call = ActiveCall::try_global(cx)?;
 6983        let room_id = active_call.read(cx).room()?.read(cx).id();
 6984        self.client
 6985            .send(proto::UpdateFollowers {
 6986                room_id,
 6987                project_id,
 6988                variant: Some(update),
 6989            })
 6990            .log_err()
 6991    }
 6992
 6993    pub async fn handle_follow(
 6994        this: Entity<Self>,
 6995        envelope: TypedEnvelope<proto::Follow>,
 6996        mut cx: AsyncApp,
 6997    ) -> Result<proto::FollowResponse> {
 6998        this.update(&mut cx, |this, cx| {
 6999            let follower = Follower {
 7000                project_id: envelope.payload.project_id,
 7001                peer_id: envelope.original_sender_id()?,
 7002            };
 7003
 7004            let mut response = proto::FollowResponse::default();
 7005            this.workspaces.retain(|workspace| {
 7006                workspace
 7007                    .update(cx, |workspace, window, cx| {
 7008                        let handler_response =
 7009                            workspace.handle_follow(follower.project_id, window, cx);
 7010                        if let Some(active_view) = handler_response.active_view
 7011                            && workspace.project.read(cx).remote_id() == follower.project_id
 7012                        {
 7013                            response.active_view = Some(active_view)
 7014                        }
 7015                    })
 7016                    .is_ok()
 7017            });
 7018
 7019            Ok(response)
 7020        })?
 7021    }
 7022
 7023    async fn handle_update_followers(
 7024        this: Entity<Self>,
 7025        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7026        mut cx: AsyncApp,
 7027    ) -> Result<()> {
 7028        let leader_id = envelope.original_sender_id()?;
 7029        let update = envelope.payload;
 7030
 7031        this.update(&mut cx, |this, cx| {
 7032            this.workspaces.retain(|workspace| {
 7033                workspace
 7034                    .update(cx, |workspace, window, cx| {
 7035                        let project_id = workspace.project.read(cx).remote_id();
 7036                        if update.project_id != project_id && update.project_id.is_some() {
 7037                            return;
 7038                        }
 7039                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7040                    })
 7041                    .is_ok()
 7042            });
 7043            Ok(())
 7044        })?
 7045    }
 7046
 7047    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7048        &self.workspaces
 7049    }
 7050}
 7051
 7052impl ViewId {
 7053    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7054        Ok(Self {
 7055            creator: message
 7056                .creator
 7057                .map(CollaboratorId::PeerId)
 7058                .context("creator is missing")?,
 7059            id: message.id,
 7060        })
 7061    }
 7062
 7063    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7064        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7065            Some(proto::ViewId {
 7066                creator: Some(peer_id),
 7067                id: self.id,
 7068            })
 7069        } else {
 7070            None
 7071        }
 7072    }
 7073}
 7074
 7075impl FollowerState {
 7076    fn pane(&self) -> &Entity<Pane> {
 7077        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7078    }
 7079}
 7080
 7081pub trait WorkspaceHandle {
 7082    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7083}
 7084
 7085impl WorkspaceHandle for Entity<Workspace> {
 7086    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7087        self.read(cx)
 7088            .worktrees(cx)
 7089            .flat_map(|worktree| {
 7090                let worktree_id = worktree.read(cx).id();
 7091                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7092                    worktree_id,
 7093                    path: f.path.clone(),
 7094                })
 7095            })
 7096            .collect::<Vec<_>>()
 7097    }
 7098}
 7099
 7100pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7101    DB.last_workspace().await.log_err().flatten()
 7102}
 7103
 7104pub fn last_session_workspace_locations(
 7105    last_session_id: &str,
 7106    last_session_window_stack: Option<Vec<WindowId>>,
 7107) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7108    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7109        .log_err()
 7110}
 7111
 7112actions!(
 7113    collab,
 7114    [
 7115        /// Opens the channel notes for the current call.
 7116        ///
 7117        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7118        /// channel in the collab panel.
 7119        ///
 7120        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7121        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7122        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7123        OpenChannelNotes,
 7124        /// Mutes your microphone.
 7125        Mute,
 7126        /// Deafens yourself (mute both microphone and speakers).
 7127        Deafen,
 7128        /// Leaves the current call.
 7129        LeaveCall,
 7130        /// Shares the current project with collaborators.
 7131        ShareProject,
 7132        /// Shares your screen with collaborators.
 7133        ScreenShare
 7134    ]
 7135);
 7136actions!(
 7137    zed,
 7138    [
 7139        /// Opens the Zed log file.
 7140        OpenLog,
 7141        /// Reveals the Zed log file in the system file manager.
 7142        RevealLogInFileManager
 7143    ]
 7144);
 7145
 7146async fn join_channel_internal(
 7147    channel_id: ChannelId,
 7148    app_state: &Arc<AppState>,
 7149    requesting_window: Option<WindowHandle<Workspace>>,
 7150    active_call: &Entity<ActiveCall>,
 7151    cx: &mut AsyncApp,
 7152) -> Result<bool> {
 7153    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7154        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7155            return (false, None);
 7156        };
 7157
 7158        let already_in_channel = room.channel_id() == Some(channel_id);
 7159        let should_prompt = room.is_sharing_project()
 7160            && !room.remote_participants().is_empty()
 7161            && !already_in_channel;
 7162        let open_room = if already_in_channel {
 7163            active_call.room().cloned()
 7164        } else {
 7165            None
 7166        };
 7167        (should_prompt, open_room)
 7168    })?;
 7169
 7170    if let Some(room) = open_room {
 7171        let task = room.update(cx, |room, cx| {
 7172            if let Some((project, host)) = room.most_active_project(cx) {
 7173                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7174            }
 7175
 7176            None
 7177        })?;
 7178        if let Some(task) = task {
 7179            task.await?;
 7180        }
 7181        return anyhow::Ok(true);
 7182    }
 7183
 7184    if should_prompt {
 7185        if let Some(workspace) = requesting_window {
 7186            let answer = workspace
 7187                .update(cx, |_, window, cx| {
 7188                    window.prompt(
 7189                        PromptLevel::Warning,
 7190                        "Do you want to switch channels?",
 7191                        Some("Leaving this call will unshare your current project."),
 7192                        &["Yes, Join Channel", "Cancel"],
 7193                        cx,
 7194                    )
 7195                })?
 7196                .await;
 7197
 7198            if answer == Ok(1) {
 7199                return Ok(false);
 7200            }
 7201        } else {
 7202            return Ok(false); // unreachable!() hopefully
 7203        }
 7204    }
 7205
 7206    let client = cx.update(|cx| active_call.read(cx).client())?;
 7207
 7208    let mut client_status = client.status();
 7209
 7210    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7211    'outer: loop {
 7212        let Some(status) = client_status.recv().await else {
 7213            anyhow::bail!("error connecting");
 7214        };
 7215
 7216        match status {
 7217            Status::Connecting
 7218            | Status::Authenticating
 7219            | Status::Authenticated
 7220            | Status::Reconnecting
 7221            | Status::Reauthenticating
 7222            | Status::Reauthenticated => continue,
 7223            Status::Connected { .. } => break 'outer,
 7224            Status::SignedOut | Status::AuthenticationError => {
 7225                return Err(ErrorCode::SignedOut.into());
 7226            }
 7227            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7228            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7229                return Err(ErrorCode::Disconnected.into());
 7230            }
 7231        }
 7232    }
 7233
 7234    let room = active_call
 7235        .update(cx, |active_call, cx| {
 7236            active_call.join_channel(channel_id, cx)
 7237        })?
 7238        .await?;
 7239
 7240    let Some(room) = room else {
 7241        return anyhow::Ok(true);
 7242    };
 7243
 7244    room.update(cx, |room, _| room.room_update_completed())?
 7245        .await;
 7246
 7247    let task = room.update(cx, |room, cx| {
 7248        if let Some((project, host)) = room.most_active_project(cx) {
 7249            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7250        }
 7251
 7252        // If you are the first to join a channel, see if you should share your project.
 7253        if room.remote_participants().is_empty()
 7254            && !room.local_participant_is_guest()
 7255            && let Some(workspace) = requesting_window
 7256        {
 7257            let project = workspace.update(cx, |workspace, _, cx| {
 7258                let project = workspace.project.read(cx);
 7259
 7260                if !CallSettings::get_global(cx).share_on_join {
 7261                    return None;
 7262                }
 7263
 7264                if (project.is_local() || project.is_via_remote_server())
 7265                    && project.visible_worktrees(cx).any(|tree| {
 7266                        tree.read(cx)
 7267                            .root_entry()
 7268                            .is_some_and(|entry| entry.is_dir())
 7269                    })
 7270                {
 7271                    Some(workspace.project.clone())
 7272                } else {
 7273                    None
 7274                }
 7275            });
 7276            if let Ok(Some(project)) = project {
 7277                return Some(cx.spawn(async move |room, cx| {
 7278                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7279                        .await?;
 7280                    Ok(())
 7281                }));
 7282            }
 7283        }
 7284
 7285        None
 7286    })?;
 7287    if let Some(task) = task {
 7288        task.await?;
 7289        return anyhow::Ok(true);
 7290    }
 7291    anyhow::Ok(false)
 7292}
 7293
 7294pub fn join_channel(
 7295    channel_id: ChannelId,
 7296    app_state: Arc<AppState>,
 7297    requesting_window: Option<WindowHandle<Workspace>>,
 7298    cx: &mut App,
 7299) -> Task<Result<()>> {
 7300    let active_call = ActiveCall::global(cx);
 7301    cx.spawn(async move |cx| {
 7302        let result = join_channel_internal(
 7303            channel_id,
 7304            &app_state,
 7305            requesting_window,
 7306            &active_call,
 7307             cx,
 7308        )
 7309            .await;
 7310
 7311        // join channel succeeded, and opened a window
 7312        if matches!(result, Ok(true)) {
 7313            return anyhow::Ok(());
 7314        }
 7315
 7316        // find an existing workspace to focus and show call controls
 7317        let mut active_window =
 7318            requesting_window.or_else(|| activate_any_workspace_window( cx));
 7319        if active_window.is_none() {
 7320            // no open workspaces, make one to show the error in (blergh)
 7321            let (window_handle, _) = cx
 7322                .update(|cx| {
 7323                    Workspace::new_local(vec![], app_state.clone(), requesting_window, None, cx)
 7324                })?
 7325                .await?;
 7326
 7327            if result.is_ok() {
 7328                cx.update(|cx| {
 7329                    cx.dispatch_action(&OpenChannelNotes);
 7330                }).log_err();
 7331            }
 7332
 7333            active_window = Some(window_handle);
 7334        }
 7335
 7336        if let Err(err) = result {
 7337            log::error!("failed to join channel: {}", err);
 7338            if let Some(active_window) = active_window {
 7339                active_window
 7340                    .update(cx, |_, window, cx| {
 7341                        let detail: SharedString = match err.error_code() {
 7342                            ErrorCode::SignedOut => {
 7343                                "Please sign in to continue.".into()
 7344                            }
 7345                            ErrorCode::UpgradeRequired => {
 7346                                "Your are running an unsupported version of Zed. Please update to continue.".into()
 7347                            }
 7348                            ErrorCode::NoSuchChannel => {
 7349                                "No matching channel was found. Please check the link and try again.".into()
 7350                            }
 7351                            ErrorCode::Forbidden => {
 7352                                "This channel is private, and you do not have access. Please ask someone to add you and try again.".into()
 7353                            }
 7354                            ErrorCode::Disconnected => "Please check your internet connection and try again.".into(),
 7355                            _ => format!("{}\n\nPlease try again.", err).into(),
 7356                        };
 7357                        window.prompt(
 7358                            PromptLevel::Critical,
 7359                            "Failed to join channel",
 7360                            Some(&detail),
 7361                            &["Ok"],
 7362                        cx)
 7363                    })?
 7364                    .await
 7365                    .ok();
 7366            }
 7367        }
 7368
 7369        // return ok, we showed the error to the user.
 7370        anyhow::Ok(())
 7371    })
 7372}
 7373
 7374pub async fn get_any_active_workspace(
 7375    app_state: Arc<AppState>,
 7376    mut cx: AsyncApp,
 7377) -> anyhow::Result<WindowHandle<Workspace>> {
 7378    // find an existing workspace to focus and show call controls
 7379    let active_window = activate_any_workspace_window(&mut cx);
 7380    if active_window.is_none() {
 7381        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, cx))?
 7382            .await?;
 7383    }
 7384    activate_any_workspace_window(&mut cx).context("could not open zed")
 7385}
 7386
 7387fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7388    cx.update(|cx| {
 7389        if let Some(workspace_window) = cx
 7390            .active_window()
 7391            .and_then(|window| window.downcast::<Workspace>())
 7392        {
 7393            return Some(workspace_window);
 7394        }
 7395
 7396        for window in cx.windows() {
 7397            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7398                workspace_window
 7399                    .update(cx, |_, window, _| window.activate_window())
 7400                    .ok();
 7401                return Some(workspace_window);
 7402            }
 7403        }
 7404        None
 7405    })
 7406    .ok()
 7407    .flatten()
 7408}
 7409
 7410pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7411    cx.windows()
 7412        .into_iter()
 7413        .filter_map(|window| window.downcast::<Workspace>())
 7414        .filter(|workspace| {
 7415            workspace
 7416                .read(cx)
 7417                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7418        })
 7419        .collect()
 7420}
 7421
 7422#[derive(Default)]
 7423pub struct OpenOptions {
 7424    pub visible: Option<OpenVisible>,
 7425    pub focus: Option<bool>,
 7426    pub open_new_workspace: Option<bool>,
 7427    pub prefer_focused_window: bool,
 7428    pub replace_window: Option<WindowHandle<Workspace>>,
 7429    pub env: Option<HashMap<String, String>>,
 7430}
 7431
 7432#[allow(clippy::type_complexity)]
 7433pub fn open_paths(
 7434    abs_paths: &[PathBuf],
 7435    app_state: Arc<AppState>,
 7436    open_options: OpenOptions,
 7437    cx: &mut App,
 7438) -> Task<
 7439    anyhow::Result<(
 7440        WindowHandle<Workspace>,
 7441        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7442    )>,
 7443> {
 7444    let abs_paths = abs_paths.to_vec();
 7445    let mut existing = None;
 7446    let mut best_match = None;
 7447    let mut open_visible = OpenVisible::All;
 7448    #[cfg(target_os = "windows")]
 7449    let wsl_path = abs_paths
 7450        .iter()
 7451        .find_map(|p| util::paths::WslPath::from_path(p));
 7452
 7453    cx.spawn(async move |cx| {
 7454        if open_options.open_new_workspace != Some(true) {
 7455            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7456            let all_metadatas = futures::future::join_all(all_paths)
 7457                .await
 7458                .into_iter()
 7459                .filter_map(|result| result.ok().flatten())
 7460                .collect::<Vec<_>>();
 7461
 7462            cx.update(|cx| {
 7463                for window in local_workspace_windows(cx) {
 7464                    if let Ok(workspace) = window.read(cx) {
 7465                        let m = workspace.project.read(cx).visibility_for_paths(
 7466                            &abs_paths,
 7467                            &all_metadatas,
 7468                            open_options.open_new_workspace == None,
 7469                            cx,
 7470                        );
 7471                        if m > best_match {
 7472                            existing = Some(window);
 7473                            best_match = m;
 7474                        } else if best_match.is_none()
 7475                            && open_options.open_new_workspace == Some(false)
 7476                        {
 7477                            existing = Some(window)
 7478                        }
 7479                    }
 7480                }
 7481            })?;
 7482
 7483            if open_options.open_new_workspace.is_none()
 7484                && (existing.is_none() || open_options.prefer_focused_window)
 7485                && all_metadatas.iter().all(|file| !file.is_dir)
 7486            {
 7487                cx.update(|cx| {
 7488                    if let Some(window) = cx
 7489                        .active_window()
 7490                        .and_then(|window| window.downcast::<Workspace>())
 7491                        && let Ok(workspace) = window.read(cx)
 7492                    {
 7493                        let project = workspace.project().read(cx);
 7494                        if project.is_local() && !project.is_via_collab() {
 7495                            existing = Some(window);
 7496                            open_visible = OpenVisible::None;
 7497                            return;
 7498                        }
 7499                    }
 7500                    for window in local_workspace_windows(cx) {
 7501                        if let Ok(workspace) = window.read(cx) {
 7502                            let project = workspace.project().read(cx);
 7503                            if project.is_via_collab() {
 7504                                continue;
 7505                            }
 7506                            existing = Some(window);
 7507                            open_visible = OpenVisible::None;
 7508                            break;
 7509                        }
 7510                    }
 7511                })?;
 7512            }
 7513        }
 7514
 7515        let result = if let Some(existing) = existing {
 7516            let open_task = existing
 7517                .update(cx, |workspace, window, cx| {
 7518                    window.activate_window();
 7519                    workspace.open_paths(
 7520                        abs_paths,
 7521                        OpenOptions {
 7522                            visible: Some(open_visible),
 7523                            ..Default::default()
 7524                        },
 7525                        None,
 7526                        window,
 7527                        cx,
 7528                    )
 7529                })?
 7530                .await;
 7531
 7532            _ = existing.update(cx, |workspace, _, cx| {
 7533                for item in open_task.iter().flatten() {
 7534                    if let Err(e) = item {
 7535                        workspace.show_error(&e, cx);
 7536                    }
 7537                }
 7538            });
 7539
 7540            Ok((existing, open_task))
 7541        } else {
 7542            cx.update(move |cx| {
 7543                Workspace::new_local(
 7544                    abs_paths,
 7545                    app_state.clone(),
 7546                    open_options.replace_window,
 7547                    open_options.env,
 7548                    cx,
 7549                )
 7550            })?
 7551            .await
 7552        };
 7553
 7554        #[cfg(target_os = "windows")]
 7555        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 7556            && let Ok((workspace, _)) = &result
 7557        {
 7558            workspace
 7559                .update(cx, move |workspace, _window, cx| {
 7560                    struct OpenInWsl;
 7561                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 7562                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 7563                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 7564                        cx.new(move |cx| {
 7565                            MessageNotification::new(msg, cx)
 7566                                .primary_message("Open in WSL")
 7567                                .primary_icon(IconName::FolderOpen)
 7568                                .primary_on_click(move |window, cx| {
 7569                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 7570                                            distro: remote::WslConnectionOptions {
 7571                                                    distro_name: distro.clone(),
 7572                                                user: None,
 7573                                            },
 7574                                            paths: vec![path.clone().into()],
 7575                                        }), cx)
 7576                                })
 7577                        })
 7578                    });
 7579                })
 7580                .unwrap();
 7581        };
 7582        result
 7583    })
 7584}
 7585
 7586pub fn open_new(
 7587    open_options: OpenOptions,
 7588    app_state: Arc<AppState>,
 7589    cx: &mut App,
 7590    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 7591) -> Task<anyhow::Result<()>> {
 7592    let task = Workspace::new_local(Vec::new(), app_state, None, open_options.env, cx);
 7593    cx.spawn(async move |cx| {
 7594        let (workspace, opened_paths) = task.await?;
 7595        workspace.update(cx, |workspace, window, cx| {
 7596            if opened_paths.is_empty() {
 7597                init(workspace, window, cx)
 7598            }
 7599        })?;
 7600        Ok(())
 7601    })
 7602}
 7603
 7604pub fn create_and_open_local_file(
 7605    path: &'static Path,
 7606    window: &mut Window,
 7607    cx: &mut Context<Workspace>,
 7608    default_content: impl 'static + Send + FnOnce() -> Rope,
 7609) -> Task<Result<Box<dyn ItemHandle>>> {
 7610    cx.spawn_in(window, async move |workspace, cx| {
 7611        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 7612        if !fs.is_file(path).await {
 7613            fs.create_file(path, Default::default()).await?;
 7614            fs.save(path, &default_content(), Default::default())
 7615                .await?;
 7616        }
 7617
 7618        let mut items = workspace
 7619            .update_in(cx, |workspace, window, cx| {
 7620                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 7621                    workspace.open_paths(
 7622                        vec![path.to_path_buf()],
 7623                        OpenOptions {
 7624                            visible: Some(OpenVisible::None),
 7625                            ..Default::default()
 7626                        },
 7627                        None,
 7628                        window,
 7629                        cx,
 7630                    )
 7631                })
 7632            })?
 7633            .await?
 7634            .await;
 7635
 7636        let item = items.pop().flatten();
 7637        item.with_context(|| format!("path {path:?} is not a file"))?
 7638    })
 7639}
 7640
 7641pub fn open_remote_project_with_new_connection(
 7642    window: WindowHandle<Workspace>,
 7643    remote_connection: Arc<dyn RemoteConnection>,
 7644    cancel_rx: oneshot::Receiver<()>,
 7645    delegate: Arc<dyn RemoteClientDelegate>,
 7646    app_state: Arc<AppState>,
 7647    paths: Vec<PathBuf>,
 7648    cx: &mut App,
 7649) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 7650    cx.spawn(async move |cx| {
 7651        let (workspace_id, serialized_workspace) =
 7652            serialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 7653                .await?;
 7654
 7655        let session = match cx
 7656            .update(|cx| {
 7657                remote::RemoteClient::new(
 7658                    ConnectionIdentifier::Workspace(workspace_id.0),
 7659                    remote_connection,
 7660                    cancel_rx,
 7661                    delegate,
 7662                    cx,
 7663                )
 7664            })?
 7665            .await?
 7666        {
 7667            Some(result) => result,
 7668            None => return Ok(Vec::new()),
 7669        };
 7670
 7671        let project = cx.update(|cx| {
 7672            project::Project::remote(
 7673                session,
 7674                app_state.client.clone(),
 7675                app_state.node_runtime.clone(),
 7676                app_state.user_store.clone(),
 7677                app_state.languages.clone(),
 7678                app_state.fs.clone(),
 7679                cx,
 7680            )
 7681        })?;
 7682
 7683        open_remote_project_inner(
 7684            project,
 7685            paths,
 7686            workspace_id,
 7687            serialized_workspace,
 7688            app_state,
 7689            window,
 7690            cx,
 7691        )
 7692        .await
 7693    })
 7694}
 7695
 7696pub fn open_remote_project_with_existing_connection(
 7697    connection_options: RemoteConnectionOptions,
 7698    project: Entity<Project>,
 7699    paths: Vec<PathBuf>,
 7700    app_state: Arc<AppState>,
 7701    window: WindowHandle<Workspace>,
 7702    cx: &mut AsyncApp,
 7703) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 7704    cx.spawn(async move |cx| {
 7705        let (workspace_id, serialized_workspace) =
 7706            serialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 7707
 7708        open_remote_project_inner(
 7709            project,
 7710            paths,
 7711            workspace_id,
 7712            serialized_workspace,
 7713            app_state,
 7714            window,
 7715            cx,
 7716        )
 7717        .await
 7718    })
 7719}
 7720
 7721async fn open_remote_project_inner(
 7722    project: Entity<Project>,
 7723    paths: Vec<PathBuf>,
 7724    workspace_id: WorkspaceId,
 7725    serialized_workspace: Option<SerializedWorkspace>,
 7726    app_state: Arc<AppState>,
 7727    window: WindowHandle<Workspace>,
 7728    cx: &mut AsyncApp,
 7729) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 7730    let toolchains = DB.toolchains(workspace_id).await?;
 7731    for (toolchain, worktree_id, path) in toolchains {
 7732        project
 7733            .update(cx, |this, cx| {
 7734                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 7735            })?
 7736            .await;
 7737    }
 7738    let mut project_paths_to_open = vec![];
 7739    let mut project_path_errors = vec![];
 7740
 7741    for path in paths {
 7742        let result = cx
 7743            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 7744            .await;
 7745        match result {
 7746            Ok((_, project_path)) => {
 7747                project_paths_to_open.push((path.clone(), Some(project_path)));
 7748            }
 7749            Err(error) => {
 7750                project_path_errors.push(error);
 7751            }
 7752        };
 7753    }
 7754
 7755    if project_paths_to_open.is_empty() {
 7756        return Err(project_path_errors.pop().context("no paths given")?);
 7757    }
 7758
 7759    if let Some(detach_session_task) = window
 7760        .update(cx, |_workspace, window, cx| {
 7761            cx.spawn_in(window, async move |this, cx| {
 7762                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 7763            })
 7764        })
 7765        .ok()
 7766    {
 7767        detach_session_task.await.ok();
 7768    }
 7769
 7770    cx.update_window(window.into(), |_, window, cx| {
 7771        window.replace_root(cx, |window, cx| {
 7772            telemetry::event!("SSH Project Opened");
 7773
 7774            let mut workspace =
 7775                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 7776            workspace.update_history(cx);
 7777
 7778            if let Some(ref serialized) = serialized_workspace {
 7779                workspace.centered_layout = serialized.centered_layout;
 7780            }
 7781
 7782            workspace
 7783        });
 7784    })?;
 7785
 7786    let items = window
 7787        .update(cx, |_, window, cx| {
 7788            window.activate_window();
 7789            open_items(serialized_workspace, project_paths_to_open, window, cx)
 7790        })?
 7791        .await?;
 7792
 7793    window.update(cx, |workspace, _, cx| {
 7794        for error in project_path_errors {
 7795            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 7796                if let Some(path) = error.error_tag("path") {
 7797                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 7798                }
 7799            } else {
 7800                workspace.show_error(&error, cx)
 7801            }
 7802        }
 7803    })?;
 7804
 7805    Ok(items.into_iter().map(|item| item?.ok()).collect())
 7806}
 7807
 7808fn serialize_remote_project(
 7809    connection_options: RemoteConnectionOptions,
 7810    paths: Vec<PathBuf>,
 7811    cx: &AsyncApp,
 7812) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 7813    cx.background_spawn(async move {
 7814        let remote_connection_id = persistence::DB
 7815            .get_or_create_remote_connection(connection_options)
 7816            .await?;
 7817
 7818        let serialized_workspace =
 7819            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 7820
 7821        let workspace_id = if let Some(workspace_id) =
 7822            serialized_workspace.as_ref().map(|workspace| workspace.id)
 7823        {
 7824            workspace_id
 7825        } else {
 7826            persistence::DB.next_id().await?
 7827        };
 7828
 7829        Ok((workspace_id, serialized_workspace))
 7830    })
 7831}
 7832
 7833pub fn join_in_room_project(
 7834    project_id: u64,
 7835    follow_user_id: u64,
 7836    app_state: Arc<AppState>,
 7837    cx: &mut App,
 7838) -> Task<Result<()>> {
 7839    let windows = cx.windows();
 7840    cx.spawn(async move |cx| {
 7841        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 7842            window_handle
 7843                .downcast::<Workspace>()
 7844                .and_then(|window_handle| {
 7845                    window_handle
 7846                        .update(cx, |workspace, _window, cx| {
 7847                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 7848                                Some(window_handle)
 7849                            } else {
 7850                                None
 7851                            }
 7852                        })
 7853                        .unwrap_or(None)
 7854                })
 7855        });
 7856
 7857        let workspace = if let Some(existing_workspace) = existing_workspace {
 7858            existing_workspace
 7859        } else {
 7860            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 7861            let room = active_call
 7862                .read_with(cx, |call, _| call.room().cloned())?
 7863                .context("not in a call")?;
 7864            let project = room
 7865                .update(cx, |room, cx| {
 7866                    room.join_project(
 7867                        project_id,
 7868                        app_state.languages.clone(),
 7869                        app_state.fs.clone(),
 7870                        cx,
 7871                    )
 7872                })?
 7873                .await?;
 7874
 7875            let window_bounds_override = window_bounds_env_override();
 7876            cx.update(|cx| {
 7877                let mut options = (app_state.build_window_options)(None, cx);
 7878                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 7879                cx.open_window(options, |window, cx| {
 7880                    cx.new(|cx| {
 7881                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 7882                    })
 7883                })
 7884            })??
 7885        };
 7886
 7887        workspace.update(cx, |workspace, window, cx| {
 7888            cx.activate(true);
 7889            window.activate_window();
 7890
 7891            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 7892                let follow_peer_id = room
 7893                    .read(cx)
 7894                    .remote_participants()
 7895                    .iter()
 7896                    .find(|(_, participant)| participant.user.id == follow_user_id)
 7897                    .map(|(_, p)| p.peer_id)
 7898                    .or_else(|| {
 7899                        // If we couldn't follow the given user, follow the host instead.
 7900                        let collaborator = workspace
 7901                            .project()
 7902                            .read(cx)
 7903                            .collaborators()
 7904                            .values()
 7905                            .find(|collaborator| collaborator.is_host)?;
 7906                        Some(collaborator.peer_id)
 7907                    });
 7908
 7909                if let Some(follow_peer_id) = follow_peer_id {
 7910                    workspace.follow(follow_peer_id, window, cx);
 7911                }
 7912            }
 7913        })?;
 7914
 7915        anyhow::Ok(())
 7916    })
 7917}
 7918
 7919pub fn reload(cx: &mut App) {
 7920    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 7921    let mut workspace_windows = cx
 7922        .windows()
 7923        .into_iter()
 7924        .filter_map(|window| window.downcast::<Workspace>())
 7925        .collect::<Vec<_>>();
 7926
 7927    // If multiple windows have unsaved changes, and need a save prompt,
 7928    // prompt in the active window before switching to a different window.
 7929    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 7930
 7931    let mut prompt = None;
 7932    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 7933        prompt = window
 7934            .update(cx, |_, window, cx| {
 7935                window.prompt(
 7936                    PromptLevel::Info,
 7937                    "Are you sure you want to restart?",
 7938                    None,
 7939                    &["Restart", "Cancel"],
 7940                    cx,
 7941                )
 7942            })
 7943            .ok();
 7944    }
 7945
 7946    cx.spawn(async move |cx| {
 7947        if let Some(prompt) = prompt {
 7948            let answer = prompt.await?;
 7949            if answer != 0 {
 7950                return Ok(());
 7951            }
 7952        }
 7953
 7954        // If the user cancels any save prompt, then keep the app open.
 7955        for window in workspace_windows {
 7956            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 7957                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 7958            }) && !should_close.await?
 7959            {
 7960                return Ok(());
 7961            }
 7962        }
 7963        cx.update(|cx| cx.restart())
 7964    })
 7965    .detach_and_log_err(cx);
 7966}
 7967
 7968fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 7969    let mut parts = value.split(',');
 7970    let x: usize = parts.next()?.parse().ok()?;
 7971    let y: usize = parts.next()?.parse().ok()?;
 7972    Some(point(px(x as f32), px(y as f32)))
 7973}
 7974
 7975fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 7976    let mut parts = value.split(',');
 7977    let width: usize = parts.next()?.parse().ok()?;
 7978    let height: usize = parts.next()?.parse().ok()?;
 7979    Some(size(px(width as f32), px(height as f32)))
 7980}
 7981
 7982/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 7983pub fn client_side_decorations(
 7984    element: impl IntoElement,
 7985    window: &mut Window,
 7986    cx: &mut App,
 7987) -> Stateful<Div> {
 7988    const BORDER_SIZE: Pixels = px(1.0);
 7989    let decorations = window.window_decorations();
 7990
 7991    match decorations {
 7992        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 7993        Decorations::Server => window.set_client_inset(px(0.0)),
 7994    }
 7995
 7996    struct GlobalResizeEdge(ResizeEdge);
 7997    impl Global for GlobalResizeEdge {}
 7998
 7999    div()
 8000        .id("window-backdrop")
 8001        .bg(transparent_black())
 8002        .map(|div| match decorations {
 8003            Decorations::Server => div,
 8004            Decorations::Client { tiling, .. } => div
 8005                .when(!(tiling.top || tiling.right), |div| {
 8006                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8007                })
 8008                .when(!(tiling.top || tiling.left), |div| {
 8009                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8010                })
 8011                .when(!(tiling.bottom || tiling.right), |div| {
 8012                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8013                })
 8014                .when(!(tiling.bottom || tiling.left), |div| {
 8015                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8016                })
 8017                .when(!tiling.top, |div| {
 8018                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8019                })
 8020                .when(!tiling.bottom, |div| {
 8021                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8022                })
 8023                .when(!tiling.left, |div| {
 8024                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8025                })
 8026                .when(!tiling.right, |div| {
 8027                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8028                })
 8029                .on_mouse_move(move |e, window, cx| {
 8030                    let size = window.window_bounds().get_bounds().size;
 8031                    let pos = e.position;
 8032
 8033                    let new_edge =
 8034                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8035
 8036                    let edge = cx.try_global::<GlobalResizeEdge>();
 8037                    if new_edge != edge.map(|edge| edge.0) {
 8038                        window
 8039                            .window_handle()
 8040                            .update(cx, |workspace, _, cx| {
 8041                                cx.notify(workspace.entity_id());
 8042                            })
 8043                            .ok();
 8044                    }
 8045                })
 8046                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8047                    let size = window.window_bounds().get_bounds().size;
 8048                    let pos = e.position;
 8049
 8050                    let edge = match resize_edge(
 8051                        pos,
 8052                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8053                        size,
 8054                        tiling,
 8055                    ) {
 8056                        Some(value) => value,
 8057                        None => return,
 8058                    };
 8059
 8060                    window.start_window_resize(edge);
 8061                }),
 8062        })
 8063        .size_full()
 8064        .child(
 8065            div()
 8066                .cursor(CursorStyle::Arrow)
 8067                .map(|div| match decorations {
 8068                    Decorations::Server => div,
 8069                    Decorations::Client { tiling } => div
 8070                        .border_color(cx.theme().colors().border)
 8071                        .when(!(tiling.top || tiling.right), |div| {
 8072                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8073                        })
 8074                        .when(!(tiling.top || tiling.left), |div| {
 8075                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8076                        })
 8077                        .when(!(tiling.bottom || tiling.right), |div| {
 8078                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8079                        })
 8080                        .when(!(tiling.bottom || tiling.left), |div| {
 8081                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8082                        })
 8083                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8084                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8085                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8086                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8087                        .when(!tiling.is_tiled(), |div| {
 8088                            div.shadow(vec![gpui::BoxShadow {
 8089                                color: Hsla {
 8090                                    h: 0.,
 8091                                    s: 0.,
 8092                                    l: 0.,
 8093                                    a: 0.4,
 8094                                },
 8095                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8096                                spread_radius: px(0.),
 8097                                offset: point(px(0.0), px(0.0)),
 8098                            }])
 8099                        }),
 8100                })
 8101                .on_mouse_move(|_e, _, cx| {
 8102                    cx.stop_propagation();
 8103                })
 8104                .size_full()
 8105                .child(element),
 8106        )
 8107        .map(|div| match decorations {
 8108            Decorations::Server => div,
 8109            Decorations::Client { tiling, .. } => div.child(
 8110                canvas(
 8111                    |_bounds, window, _| {
 8112                        window.insert_hitbox(
 8113                            Bounds::new(
 8114                                point(px(0.0), px(0.0)),
 8115                                window.window_bounds().get_bounds().size,
 8116                            ),
 8117                            HitboxBehavior::Normal,
 8118                        )
 8119                    },
 8120                    move |_bounds, hitbox, window, cx| {
 8121                        let mouse = window.mouse_position();
 8122                        let size = window.window_bounds().get_bounds().size;
 8123                        let Some(edge) =
 8124                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8125                        else {
 8126                            return;
 8127                        };
 8128                        cx.set_global(GlobalResizeEdge(edge));
 8129                        window.set_cursor_style(
 8130                            match edge {
 8131                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8132                                ResizeEdge::Left | ResizeEdge::Right => {
 8133                                    CursorStyle::ResizeLeftRight
 8134                                }
 8135                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8136                                    CursorStyle::ResizeUpLeftDownRight
 8137                                }
 8138                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8139                                    CursorStyle::ResizeUpRightDownLeft
 8140                                }
 8141                            },
 8142                            &hitbox,
 8143                        );
 8144                    },
 8145                )
 8146                .size_full()
 8147                .absolute(),
 8148            ),
 8149        })
 8150}
 8151
 8152fn resize_edge(
 8153    pos: Point<Pixels>,
 8154    shadow_size: Pixels,
 8155    window_size: Size<Pixels>,
 8156    tiling: Tiling,
 8157) -> Option<ResizeEdge> {
 8158    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8159    if bounds.contains(&pos) {
 8160        return None;
 8161    }
 8162
 8163    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8164    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8165    if !tiling.top && top_left_bounds.contains(&pos) {
 8166        return Some(ResizeEdge::TopLeft);
 8167    }
 8168
 8169    let top_right_bounds = Bounds::new(
 8170        Point::new(window_size.width - corner_size.width, px(0.)),
 8171        corner_size,
 8172    );
 8173    if !tiling.top && top_right_bounds.contains(&pos) {
 8174        return Some(ResizeEdge::TopRight);
 8175    }
 8176
 8177    let bottom_left_bounds = Bounds::new(
 8178        Point::new(px(0.), window_size.height - corner_size.height),
 8179        corner_size,
 8180    );
 8181    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8182        return Some(ResizeEdge::BottomLeft);
 8183    }
 8184
 8185    let bottom_right_bounds = Bounds::new(
 8186        Point::new(
 8187            window_size.width - corner_size.width,
 8188            window_size.height - corner_size.height,
 8189        ),
 8190        corner_size,
 8191    );
 8192    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8193        return Some(ResizeEdge::BottomRight);
 8194    }
 8195
 8196    if !tiling.top && pos.y < shadow_size {
 8197        Some(ResizeEdge::Top)
 8198    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8199        Some(ResizeEdge::Bottom)
 8200    } else if !tiling.left && pos.x < shadow_size {
 8201        Some(ResizeEdge::Left)
 8202    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8203        Some(ResizeEdge::Right)
 8204    } else {
 8205        None
 8206    }
 8207}
 8208
 8209fn join_pane_into_active(
 8210    active_pane: &Entity<Pane>,
 8211    pane: &Entity<Pane>,
 8212    window: &mut Window,
 8213    cx: &mut App,
 8214) {
 8215    if pane == active_pane {
 8216    } else if pane.read(cx).items_len() == 0 {
 8217        pane.update(cx, |_, cx| {
 8218            cx.emit(pane::Event::Remove {
 8219                focus_on_pane: None,
 8220            });
 8221        })
 8222    } else {
 8223        move_all_items(pane, active_pane, window, cx);
 8224    }
 8225}
 8226
 8227fn move_all_items(
 8228    from_pane: &Entity<Pane>,
 8229    to_pane: &Entity<Pane>,
 8230    window: &mut Window,
 8231    cx: &mut App,
 8232) {
 8233    let destination_is_different = from_pane != to_pane;
 8234    let mut moved_items = 0;
 8235    for (item_ix, item_handle) in from_pane
 8236        .read(cx)
 8237        .items()
 8238        .enumerate()
 8239        .map(|(ix, item)| (ix, item.clone()))
 8240        .collect::<Vec<_>>()
 8241    {
 8242        let ix = item_ix - moved_items;
 8243        if destination_is_different {
 8244            // Close item from previous pane
 8245            from_pane.update(cx, |source, cx| {
 8246                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8247            });
 8248            moved_items += 1;
 8249        }
 8250
 8251        // This automatically removes duplicate items in the pane
 8252        to_pane.update(cx, |destination, cx| {
 8253            destination.add_item(item_handle, true, true, None, window, cx);
 8254            window.focus(&destination.focus_handle(cx))
 8255        });
 8256    }
 8257}
 8258
 8259pub fn move_item(
 8260    source: &Entity<Pane>,
 8261    destination: &Entity<Pane>,
 8262    item_id_to_move: EntityId,
 8263    destination_index: usize,
 8264    activate: bool,
 8265    window: &mut Window,
 8266    cx: &mut App,
 8267) {
 8268    let Some((item_ix, item_handle)) = source
 8269        .read(cx)
 8270        .items()
 8271        .enumerate()
 8272        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8273        .map(|(ix, item)| (ix, item.clone()))
 8274    else {
 8275        // Tab was closed during drag
 8276        return;
 8277    };
 8278
 8279    if source != destination {
 8280        // Close item from previous pane
 8281        source.update(cx, |source, cx| {
 8282            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8283        });
 8284    }
 8285
 8286    // This automatically removes duplicate items in the pane
 8287    destination.update(cx, |destination, cx| {
 8288        destination.add_item_inner(
 8289            item_handle,
 8290            activate,
 8291            activate,
 8292            activate,
 8293            Some(destination_index),
 8294            window,
 8295            cx,
 8296        );
 8297        if activate {
 8298            window.focus(&destination.focus_handle(cx))
 8299        }
 8300    });
 8301}
 8302
 8303pub fn move_active_item(
 8304    source: &Entity<Pane>,
 8305    destination: &Entity<Pane>,
 8306    focus_destination: bool,
 8307    close_if_empty: bool,
 8308    window: &mut Window,
 8309    cx: &mut App,
 8310) {
 8311    if source == destination {
 8312        return;
 8313    }
 8314    let Some(active_item) = source.read(cx).active_item() else {
 8315        return;
 8316    };
 8317    source.update(cx, |source_pane, cx| {
 8318        let item_id = active_item.item_id();
 8319        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8320        destination.update(cx, |target_pane, cx| {
 8321            target_pane.add_item(
 8322                active_item,
 8323                focus_destination,
 8324                focus_destination,
 8325                Some(target_pane.items_len()),
 8326                window,
 8327                cx,
 8328            );
 8329        });
 8330    });
 8331}
 8332
 8333pub fn clone_active_item(
 8334    workspace_id: Option<WorkspaceId>,
 8335    source: &Entity<Pane>,
 8336    destination: &Entity<Pane>,
 8337    focus_destination: bool,
 8338    window: &mut Window,
 8339    cx: &mut App,
 8340) {
 8341    if source == destination {
 8342        return;
 8343    }
 8344    let Some(active_item) = source.read(cx).active_item() else {
 8345        return;
 8346    };
 8347    if !active_item.can_split(cx) {
 8348        return;
 8349    }
 8350    let destination = destination.downgrade();
 8351    let task = active_item.clone_on_split(workspace_id, window, cx);
 8352    window
 8353        .spawn(cx, async move |cx| {
 8354            let Some(clone) = task.await else {
 8355                return;
 8356            };
 8357            destination
 8358                .update_in(cx, |target_pane, window, cx| {
 8359                    target_pane.add_item(
 8360                        clone,
 8361                        focus_destination,
 8362                        focus_destination,
 8363                        Some(target_pane.items_len()),
 8364                        window,
 8365                        cx,
 8366                    );
 8367                })
 8368                .log_err();
 8369        })
 8370        .detach();
 8371}
 8372
 8373#[derive(Debug)]
 8374pub struct WorkspacePosition {
 8375    pub window_bounds: Option<WindowBounds>,
 8376    pub display: Option<Uuid>,
 8377    pub centered_layout: bool,
 8378}
 8379
 8380pub fn remote_workspace_position_from_db(
 8381    connection_options: RemoteConnectionOptions,
 8382    paths_to_open: &[PathBuf],
 8383    cx: &App,
 8384) -> Task<Result<WorkspacePosition>> {
 8385    let paths = paths_to_open.to_vec();
 8386
 8387    cx.background_spawn(async move {
 8388        let remote_connection_id = persistence::DB
 8389            .get_or_create_remote_connection(connection_options)
 8390            .await
 8391            .context("fetching serialized ssh project")?;
 8392        let serialized_workspace =
 8393            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8394
 8395        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8396            (Some(WindowBounds::Windowed(bounds)), None)
 8397        } else {
 8398            let restorable_bounds = serialized_workspace
 8399                .as_ref()
 8400                .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 8401                .or_else(|| {
 8402                    let (display, window_bounds) = DB.last_window().log_err()?;
 8403                    Some((display?, window_bounds?))
 8404                });
 8405
 8406            if let Some((serialized_display, serialized_status)) = restorable_bounds {
 8407                (Some(serialized_status.0), Some(serialized_display))
 8408            } else {
 8409                (None, None)
 8410            }
 8411        };
 8412
 8413        let centered_layout = serialized_workspace
 8414            .as_ref()
 8415            .map(|w| w.centered_layout)
 8416            .unwrap_or(false);
 8417
 8418        Ok(WorkspacePosition {
 8419            window_bounds,
 8420            display,
 8421            centered_layout,
 8422        })
 8423    })
 8424}
 8425
 8426pub fn with_active_or_new_workspace(
 8427    cx: &mut App,
 8428    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8429) {
 8430    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8431        Some(workspace) => {
 8432            cx.defer(move |cx| {
 8433                workspace
 8434                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8435                    .log_err();
 8436            });
 8437        }
 8438        None => {
 8439            let app_state = AppState::global(cx);
 8440            if let Some(app_state) = app_state.upgrade() {
 8441                open_new(
 8442                    OpenOptions::default(),
 8443                    app_state,
 8444                    cx,
 8445                    move |workspace, window, cx| f(workspace, window, cx),
 8446                )
 8447                .detach_and_log_err(cx);
 8448            }
 8449        }
 8450    }
 8451}
 8452
 8453#[cfg(test)]
 8454mod tests {
 8455    use std::{cell::RefCell, rc::Rc};
 8456
 8457    use super::*;
 8458    use crate::{
 8459        dock::{PanelEvent, test::TestPanel},
 8460        item::{
 8461            ItemBufferKind, ItemEvent,
 8462            test::{TestItem, TestProjectItem},
 8463        },
 8464    };
 8465    use fs::FakeFs;
 8466    use gpui::{
 8467        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8468        UpdateGlobal, VisualTestContext, px,
 8469    };
 8470    use project::{Project, ProjectEntryId};
 8471    use serde_json::json;
 8472    use settings::SettingsStore;
 8473    use util::rel_path::rel_path;
 8474
 8475    #[gpui::test]
 8476    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8477        init_test(cx);
 8478
 8479        let fs = FakeFs::new(cx.executor());
 8480        let project = Project::test(fs, [], cx).await;
 8481        let (workspace, cx) =
 8482            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8483
 8484        // Adding an item with no ambiguity renders the tab without detail.
 8485        let item1 = cx.new(|cx| {
 8486            let mut item = TestItem::new(cx);
 8487            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 8488            item
 8489        });
 8490        workspace.update_in(cx, |workspace, window, cx| {
 8491            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8492        });
 8493        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 8494
 8495        // Adding an item that creates ambiguity increases the level of detail on
 8496        // both tabs.
 8497        let item2 = cx.new_window_entity(|_window, cx| {
 8498            let mut item = TestItem::new(cx);
 8499            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8500            item
 8501        });
 8502        workspace.update_in(cx, |workspace, window, cx| {
 8503            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8504        });
 8505        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8506        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8507
 8508        // Adding an item that creates ambiguity increases the level of detail only
 8509        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 8510        // we stop at the highest detail available.
 8511        let item3 = cx.new(|cx| {
 8512            let mut item = TestItem::new(cx);
 8513            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8514            item
 8515        });
 8516        workspace.update_in(cx, |workspace, window, cx| {
 8517            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8518        });
 8519        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8520        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8521        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8522    }
 8523
 8524    #[gpui::test]
 8525    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 8526        init_test(cx);
 8527
 8528        let fs = FakeFs::new(cx.executor());
 8529        fs.insert_tree(
 8530            "/root1",
 8531            json!({
 8532                "one.txt": "",
 8533                "two.txt": "",
 8534            }),
 8535        )
 8536        .await;
 8537        fs.insert_tree(
 8538            "/root2",
 8539            json!({
 8540                "three.txt": "",
 8541            }),
 8542        )
 8543        .await;
 8544
 8545        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 8546        let (workspace, cx) =
 8547            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8548        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8549        let worktree_id = project.update(cx, |project, cx| {
 8550            project.worktrees(cx).next().unwrap().read(cx).id()
 8551        });
 8552
 8553        let item1 = cx.new(|cx| {
 8554            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 8555        });
 8556        let item2 = cx.new(|cx| {
 8557            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 8558        });
 8559
 8560        // Add an item to an empty pane
 8561        workspace.update_in(cx, |workspace, window, cx| {
 8562            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 8563        });
 8564        project.update(cx, |project, cx| {
 8565            assert_eq!(
 8566                project.active_entry(),
 8567                project
 8568                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 8569                    .map(|e| e.id)
 8570            );
 8571        });
 8572        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8573
 8574        // Add a second item to a non-empty pane
 8575        workspace.update_in(cx, |workspace, window, cx| {
 8576            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 8577        });
 8578        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 8579        project.update(cx, |project, cx| {
 8580            assert_eq!(
 8581                project.active_entry(),
 8582                project
 8583                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 8584                    .map(|e| e.id)
 8585            );
 8586        });
 8587
 8588        // Close the active item
 8589        pane.update_in(cx, |pane, window, cx| {
 8590            pane.close_active_item(&Default::default(), window, cx)
 8591        })
 8592        .await
 8593        .unwrap();
 8594        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8595        project.update(cx, |project, cx| {
 8596            assert_eq!(
 8597                project.active_entry(),
 8598                project
 8599                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 8600                    .map(|e| e.id)
 8601            );
 8602        });
 8603
 8604        // Add a project folder
 8605        project
 8606            .update(cx, |project, cx| {
 8607                project.find_or_create_worktree("root2", true, cx)
 8608            })
 8609            .await
 8610            .unwrap();
 8611        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 8612
 8613        // Remove a project folder
 8614        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 8615        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 8616    }
 8617
 8618    #[gpui::test]
 8619    async fn test_close_window(cx: &mut TestAppContext) {
 8620        init_test(cx);
 8621
 8622        let fs = FakeFs::new(cx.executor());
 8623        fs.insert_tree("/root", json!({ "one": "" })).await;
 8624
 8625        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8626        let (workspace, cx) =
 8627            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8628
 8629        // When there are no dirty items, there's nothing to do.
 8630        let item1 = cx.new(TestItem::new);
 8631        workspace.update_in(cx, |w, window, cx| {
 8632            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 8633        });
 8634        let task = workspace.update_in(cx, |w, window, cx| {
 8635            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8636        });
 8637        assert!(task.await.unwrap());
 8638
 8639        // When there are dirty untitled items, prompt to save each one. If the user
 8640        // cancels any prompt, then abort.
 8641        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 8642        let item3 = cx.new(|cx| {
 8643            TestItem::new(cx)
 8644                .with_dirty(true)
 8645                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8646        });
 8647        workspace.update_in(cx, |w, window, cx| {
 8648            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8649            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8650        });
 8651        let task = workspace.update_in(cx, |w, window, cx| {
 8652            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8653        });
 8654        cx.executor().run_until_parked();
 8655        cx.simulate_prompt_answer("Cancel"); // cancel save all
 8656        cx.executor().run_until_parked();
 8657        assert!(!cx.has_pending_prompt());
 8658        assert!(!task.await.unwrap());
 8659    }
 8660
 8661    #[gpui::test]
 8662    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 8663        init_test(cx);
 8664
 8665        // Register TestItem as a serializable item
 8666        cx.update(|cx| {
 8667            register_serializable_item::<TestItem>(cx);
 8668        });
 8669
 8670        let fs = FakeFs::new(cx.executor());
 8671        fs.insert_tree("/root", json!({ "one": "" })).await;
 8672
 8673        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8674        let (workspace, cx) =
 8675            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8676
 8677        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 8678        let item1 = cx.new(|cx| {
 8679            TestItem::new(cx)
 8680                .with_dirty(true)
 8681                .with_serialize(|| Some(Task::ready(Ok(()))))
 8682        });
 8683        let item2 = cx.new(|cx| {
 8684            TestItem::new(cx)
 8685                .with_dirty(true)
 8686                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8687                .with_serialize(|| Some(Task::ready(Ok(()))))
 8688        });
 8689        workspace.update_in(cx, |w, window, cx| {
 8690            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8691            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8692        });
 8693        let task = workspace.update_in(cx, |w, window, cx| {
 8694            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8695        });
 8696        assert!(task.await.unwrap());
 8697    }
 8698
 8699    #[gpui::test]
 8700    async fn test_close_pane_items(cx: &mut TestAppContext) {
 8701        init_test(cx);
 8702
 8703        let fs = FakeFs::new(cx.executor());
 8704
 8705        let project = Project::test(fs, None, cx).await;
 8706        let (workspace, cx) =
 8707            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8708
 8709        let item1 = cx.new(|cx| {
 8710            TestItem::new(cx)
 8711                .with_dirty(true)
 8712                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 8713        });
 8714        let item2 = cx.new(|cx| {
 8715            TestItem::new(cx)
 8716                .with_dirty(true)
 8717                .with_conflict(true)
 8718                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 8719        });
 8720        let item3 = cx.new(|cx| {
 8721            TestItem::new(cx)
 8722                .with_dirty(true)
 8723                .with_conflict(true)
 8724                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 8725        });
 8726        let item4 = cx.new(|cx| {
 8727            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 8728                let project_item = TestProjectItem::new_untitled(cx);
 8729                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8730                project_item
 8731            }])
 8732        });
 8733        let pane = workspace.update_in(cx, |workspace, window, cx| {
 8734            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8735            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8736            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8737            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 8738            workspace.active_pane().clone()
 8739        });
 8740
 8741        let close_items = pane.update_in(cx, |pane, window, cx| {
 8742            pane.activate_item(1, true, true, window, cx);
 8743            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8744            let item1_id = item1.item_id();
 8745            let item3_id = item3.item_id();
 8746            let item4_id = item4.item_id();
 8747            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 8748                [item1_id, item3_id, item4_id].contains(&id)
 8749            })
 8750        });
 8751        cx.executor().run_until_parked();
 8752
 8753        assert!(cx.has_pending_prompt());
 8754        cx.simulate_prompt_answer("Save all");
 8755
 8756        cx.executor().run_until_parked();
 8757
 8758        // Item 1 is saved. There's a prompt to save item 3.
 8759        pane.update(cx, |pane, cx| {
 8760            assert_eq!(item1.read(cx).save_count, 1);
 8761            assert_eq!(item1.read(cx).save_as_count, 0);
 8762            assert_eq!(item1.read(cx).reload_count, 0);
 8763            assert_eq!(pane.items_len(), 3);
 8764            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 8765        });
 8766        assert!(cx.has_pending_prompt());
 8767
 8768        // Cancel saving item 3.
 8769        cx.simulate_prompt_answer("Discard");
 8770        cx.executor().run_until_parked();
 8771
 8772        // Item 3 is reloaded. There's a prompt to save item 4.
 8773        pane.update(cx, |pane, cx| {
 8774            assert_eq!(item3.read(cx).save_count, 0);
 8775            assert_eq!(item3.read(cx).save_as_count, 0);
 8776            assert_eq!(item3.read(cx).reload_count, 1);
 8777            assert_eq!(pane.items_len(), 2);
 8778            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 8779        });
 8780
 8781        // There's a prompt for a path for item 4.
 8782        cx.simulate_new_path_selection(|_| Some(Default::default()));
 8783        close_items.await.unwrap();
 8784
 8785        // The requested items are closed.
 8786        pane.update(cx, |pane, cx| {
 8787            assert_eq!(item4.read(cx).save_count, 0);
 8788            assert_eq!(item4.read(cx).save_as_count, 1);
 8789            assert_eq!(item4.read(cx).reload_count, 0);
 8790            assert_eq!(pane.items_len(), 1);
 8791            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8792        });
 8793    }
 8794
 8795    #[gpui::test]
 8796    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 8797        init_test(cx);
 8798
 8799        let fs = FakeFs::new(cx.executor());
 8800        let project = Project::test(fs, [], cx).await;
 8801        let (workspace, cx) =
 8802            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8803
 8804        // Create several workspace items with single project entries, and two
 8805        // workspace items with multiple project entries.
 8806        let single_entry_items = (0..=4)
 8807            .map(|project_entry_id| {
 8808                cx.new(|cx| {
 8809                    TestItem::new(cx)
 8810                        .with_dirty(true)
 8811                        .with_project_items(&[dirty_project_item(
 8812                            project_entry_id,
 8813                            &format!("{project_entry_id}.txt"),
 8814                            cx,
 8815                        )])
 8816                })
 8817            })
 8818            .collect::<Vec<_>>();
 8819        let item_2_3 = cx.new(|cx| {
 8820            TestItem::new(cx)
 8821                .with_dirty(true)
 8822                .with_buffer_kind(ItemBufferKind::Multibuffer)
 8823                .with_project_items(&[
 8824                    single_entry_items[2].read(cx).project_items[0].clone(),
 8825                    single_entry_items[3].read(cx).project_items[0].clone(),
 8826                ])
 8827        });
 8828        let item_3_4 = cx.new(|cx| {
 8829            TestItem::new(cx)
 8830                .with_dirty(true)
 8831                .with_buffer_kind(ItemBufferKind::Multibuffer)
 8832                .with_project_items(&[
 8833                    single_entry_items[3].read(cx).project_items[0].clone(),
 8834                    single_entry_items[4].read(cx).project_items[0].clone(),
 8835                ])
 8836        });
 8837
 8838        // Create two panes that contain the following project entries:
 8839        //   left pane:
 8840        //     multi-entry items:   (2, 3)
 8841        //     single-entry items:  0, 2, 3, 4
 8842        //   right pane:
 8843        //     single-entry items:  4, 1
 8844        //     multi-entry items:   (3, 4)
 8845        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 8846            let left_pane = workspace.active_pane().clone();
 8847            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 8848            workspace.add_item_to_active_pane(
 8849                single_entry_items[0].boxed_clone(),
 8850                None,
 8851                true,
 8852                window,
 8853                cx,
 8854            );
 8855            workspace.add_item_to_active_pane(
 8856                single_entry_items[2].boxed_clone(),
 8857                None,
 8858                true,
 8859                window,
 8860                cx,
 8861            );
 8862            workspace.add_item_to_active_pane(
 8863                single_entry_items[3].boxed_clone(),
 8864                None,
 8865                true,
 8866                window,
 8867                cx,
 8868            );
 8869            workspace.add_item_to_active_pane(
 8870                single_entry_items[4].boxed_clone(),
 8871                None,
 8872                true,
 8873                window,
 8874                cx,
 8875            );
 8876
 8877            let right_pane =
 8878                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 8879
 8880            let boxed_clone = single_entry_items[1].boxed_clone();
 8881            let right_pane = window.spawn(cx, async move |cx| {
 8882                right_pane.await.inspect(|right_pane| {
 8883                    right_pane
 8884                        .update_in(cx, |pane, window, cx| {
 8885                            pane.add_item(boxed_clone, true, true, None, window, cx);
 8886                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 8887                        })
 8888                        .unwrap();
 8889                })
 8890            });
 8891
 8892            (left_pane, right_pane)
 8893        });
 8894        let right_pane = right_pane.await.unwrap();
 8895        cx.focus(&right_pane);
 8896
 8897        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 8898            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8899                .unwrap()
 8900        });
 8901        cx.executor().run_until_parked();
 8902
 8903        let msg = cx.pending_prompt().unwrap().0;
 8904        assert!(msg.contains("1.txt"));
 8905        assert!(!msg.contains("2.txt"));
 8906        assert!(!msg.contains("3.txt"));
 8907        assert!(!msg.contains("4.txt"));
 8908
 8909        cx.simulate_prompt_answer("Cancel");
 8910        close.await;
 8911
 8912        left_pane
 8913            .update_in(cx, |left_pane, window, cx| {
 8914                left_pane.close_item_by_id(
 8915                    single_entry_items[3].entity_id(),
 8916                    SaveIntent::Skip,
 8917                    window,
 8918                    cx,
 8919                )
 8920            })
 8921            .await
 8922            .unwrap();
 8923
 8924        close = right_pane.update_in(cx, |pane, window, cx| {
 8925            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8926                .unwrap()
 8927        });
 8928        cx.executor().run_until_parked();
 8929
 8930        let details = cx.pending_prompt().unwrap().1;
 8931        assert!(details.contains("1.txt"));
 8932        assert!(!details.contains("2.txt"));
 8933        assert!(details.contains("3.txt"));
 8934        // ideally this assertion could be made, but today we can only
 8935        // save whole items not project items, so the orphaned item 3 causes
 8936        // 4 to be saved too.
 8937        // assert!(!details.contains("4.txt"));
 8938
 8939        cx.simulate_prompt_answer("Save all");
 8940
 8941        cx.executor().run_until_parked();
 8942        close.await;
 8943        right_pane.read_with(cx, |pane, _| {
 8944            assert_eq!(pane.items_len(), 0);
 8945        });
 8946    }
 8947
 8948    #[gpui::test]
 8949    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 8950        init_test(cx);
 8951
 8952        let fs = FakeFs::new(cx.executor());
 8953        let project = Project::test(fs, [], cx).await;
 8954        let (workspace, cx) =
 8955            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8956        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8957
 8958        let item = cx.new(|cx| {
 8959            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8960        });
 8961        let item_id = item.entity_id();
 8962        workspace.update_in(cx, |workspace, window, cx| {
 8963            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8964        });
 8965
 8966        // Autosave on window change.
 8967        item.update(cx, |item, cx| {
 8968            SettingsStore::update_global(cx, |settings, cx| {
 8969                settings.update_user_settings(cx, |settings| {
 8970                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 8971                })
 8972            });
 8973            item.is_dirty = true;
 8974        });
 8975
 8976        // Deactivating the window saves the file.
 8977        cx.deactivate_window();
 8978        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8979
 8980        // Re-activating the window doesn't save the file.
 8981        cx.update(|window, _| window.activate_window());
 8982        cx.executor().run_until_parked();
 8983        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8984
 8985        // Autosave on focus change.
 8986        item.update_in(cx, |item, window, cx| {
 8987            cx.focus_self(window);
 8988            SettingsStore::update_global(cx, |settings, cx| {
 8989                settings.update_user_settings(cx, |settings| {
 8990                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 8991                })
 8992            });
 8993            item.is_dirty = true;
 8994        });
 8995        // Blurring the item saves the file.
 8996        item.update_in(cx, |_, window, _| window.blur());
 8997        cx.executor().run_until_parked();
 8998        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 8999
 9000        // Deactivating the window still saves the file.
 9001        item.update_in(cx, |item, window, cx| {
 9002            cx.focus_self(window);
 9003            item.is_dirty = true;
 9004        });
 9005        cx.deactivate_window();
 9006        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9007
 9008        // Autosave after delay.
 9009        item.update(cx, |item, cx| {
 9010            SettingsStore::update_global(cx, |settings, cx| {
 9011                settings.update_user_settings(cx, |settings| {
 9012                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9013                        milliseconds: 500.into(),
 9014                    });
 9015                })
 9016            });
 9017            item.is_dirty = true;
 9018            cx.emit(ItemEvent::Edit);
 9019        });
 9020
 9021        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9022        cx.executor().advance_clock(Duration::from_millis(250));
 9023        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9024
 9025        // After delay expires, the file is saved.
 9026        cx.executor().advance_clock(Duration::from_millis(250));
 9027        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9028
 9029        // Autosave after delay, should save earlier than delay if tab is closed
 9030        item.update(cx, |item, cx| {
 9031            item.is_dirty = true;
 9032            cx.emit(ItemEvent::Edit);
 9033        });
 9034        cx.executor().advance_clock(Duration::from_millis(250));
 9035        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9036
 9037        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9038        pane.update_in(cx, |pane, window, cx| {
 9039            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9040        })
 9041        .await
 9042        .unwrap();
 9043        assert!(!cx.has_pending_prompt());
 9044        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9045
 9046        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9047        workspace.update_in(cx, |workspace, window, cx| {
 9048            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9049        });
 9050        item.update_in(cx, |item, _window, cx| {
 9051            item.is_dirty = true;
 9052            for project_item in &mut item.project_items {
 9053                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9054            }
 9055        });
 9056        cx.run_until_parked();
 9057        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9058
 9059        // Autosave on focus change, ensuring closing the tab counts as such.
 9060        item.update(cx, |item, cx| {
 9061            SettingsStore::update_global(cx, |settings, cx| {
 9062                settings.update_user_settings(cx, |settings| {
 9063                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9064                })
 9065            });
 9066            item.is_dirty = true;
 9067            for project_item in &mut item.project_items {
 9068                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9069            }
 9070        });
 9071
 9072        pane.update_in(cx, |pane, window, cx| {
 9073            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9074        })
 9075        .await
 9076        .unwrap();
 9077        assert!(!cx.has_pending_prompt());
 9078        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9079
 9080        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9081        workspace.update_in(cx, |workspace, window, cx| {
 9082            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9083        });
 9084        item.update_in(cx, |item, window, cx| {
 9085            item.project_items[0].update(cx, |item, _| {
 9086                item.entry_id = None;
 9087            });
 9088            item.is_dirty = true;
 9089            window.blur();
 9090        });
 9091        cx.run_until_parked();
 9092        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9093
 9094        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9095        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9096            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9097        });
 9098        cx.run_until_parked();
 9099        assert!(cx.has_pending_prompt());
 9100        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9101    }
 9102
 9103    #[gpui::test]
 9104    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9105        init_test(cx);
 9106
 9107        let fs = FakeFs::new(cx.executor());
 9108
 9109        let project = Project::test(fs, [], cx).await;
 9110        let (workspace, cx) =
 9111            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9112
 9113        let item = cx.new(|cx| {
 9114            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9115        });
 9116        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9117        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9118        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9119
 9120        workspace.update_in(cx, |workspace, window, cx| {
 9121            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9122            let toolbar_notification_count = toolbar_notify_count.clone();
 9123            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9124                *toolbar_notification_count.borrow_mut() += 1
 9125            })
 9126            .detach();
 9127        });
 9128
 9129        pane.read_with(cx, |pane, _| {
 9130            assert!(!pane.can_navigate_backward());
 9131            assert!(!pane.can_navigate_forward());
 9132        });
 9133
 9134        item.update_in(cx, |item, _, cx| {
 9135            item.set_state("one".to_string(), cx);
 9136        });
 9137
 9138        // Toolbar must be notified to re-render the navigation buttons
 9139        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9140
 9141        pane.read_with(cx, |pane, _| {
 9142            assert!(pane.can_navigate_backward());
 9143            assert!(!pane.can_navigate_forward());
 9144        });
 9145
 9146        workspace
 9147            .update_in(cx, |workspace, window, cx| {
 9148                workspace.go_back(pane.downgrade(), window, cx)
 9149            })
 9150            .await
 9151            .unwrap();
 9152
 9153        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9154        pane.read_with(cx, |pane, _| {
 9155            assert!(!pane.can_navigate_backward());
 9156            assert!(pane.can_navigate_forward());
 9157        });
 9158    }
 9159
 9160    #[gpui::test]
 9161    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9162        init_test(cx);
 9163        let fs = FakeFs::new(cx.executor());
 9164
 9165        let project = Project::test(fs, [], cx).await;
 9166        let (workspace, cx) =
 9167            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9168
 9169        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9170            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 9171            workspace.add_panel(panel.clone(), window, cx);
 9172
 9173            workspace
 9174                .right_dock()
 9175                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9176
 9177            panel
 9178        });
 9179
 9180        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9181        pane.update_in(cx, |pane, window, cx| {
 9182            let item = cx.new(TestItem::new);
 9183            pane.add_item(Box::new(item), true, true, None, window, cx);
 9184        });
 9185
 9186        // Transfer focus from center to panel
 9187        workspace.update_in(cx, |workspace, window, cx| {
 9188            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9189        });
 9190
 9191        workspace.update_in(cx, |workspace, window, cx| {
 9192            assert!(workspace.right_dock().read(cx).is_open());
 9193            assert!(!panel.is_zoomed(window, cx));
 9194            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9195        });
 9196
 9197        // Transfer focus from panel to center
 9198        workspace.update_in(cx, |workspace, window, cx| {
 9199            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9200        });
 9201
 9202        workspace.update_in(cx, |workspace, window, cx| {
 9203            assert!(workspace.right_dock().read(cx).is_open());
 9204            assert!(!panel.is_zoomed(window, cx));
 9205            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9206        });
 9207
 9208        // Close the dock
 9209        workspace.update_in(cx, |workspace, window, cx| {
 9210            workspace.toggle_dock(DockPosition::Right, window, cx);
 9211        });
 9212
 9213        workspace.update_in(cx, |workspace, window, cx| {
 9214            assert!(!workspace.right_dock().read(cx).is_open());
 9215            assert!(!panel.is_zoomed(window, cx));
 9216            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9217        });
 9218
 9219        // Open the dock
 9220        workspace.update_in(cx, |workspace, window, cx| {
 9221            workspace.toggle_dock(DockPosition::Right, window, cx);
 9222        });
 9223
 9224        workspace.update_in(cx, |workspace, window, cx| {
 9225            assert!(workspace.right_dock().read(cx).is_open());
 9226            assert!(!panel.is_zoomed(window, cx));
 9227            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9228        });
 9229
 9230        // Focus and zoom panel
 9231        panel.update_in(cx, |panel, window, cx| {
 9232            cx.focus_self(window);
 9233            panel.set_zoomed(true, window, cx)
 9234        });
 9235
 9236        workspace.update_in(cx, |workspace, window, cx| {
 9237            assert!(workspace.right_dock().read(cx).is_open());
 9238            assert!(panel.is_zoomed(window, cx));
 9239            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9240        });
 9241
 9242        // Transfer focus to the center closes the dock
 9243        workspace.update_in(cx, |workspace, window, cx| {
 9244            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9245        });
 9246
 9247        workspace.update_in(cx, |workspace, window, cx| {
 9248            assert!(!workspace.right_dock().read(cx).is_open());
 9249            assert!(panel.is_zoomed(window, cx));
 9250            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9251        });
 9252
 9253        // Transferring focus back to the panel keeps it zoomed
 9254        workspace.update_in(cx, |workspace, window, cx| {
 9255            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9256        });
 9257
 9258        workspace.update_in(cx, |workspace, window, cx| {
 9259            assert!(workspace.right_dock().read(cx).is_open());
 9260            assert!(panel.is_zoomed(window, cx));
 9261            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9262        });
 9263
 9264        // Close the dock while it is zoomed
 9265        workspace.update_in(cx, |workspace, window, cx| {
 9266            workspace.toggle_dock(DockPosition::Right, window, cx)
 9267        });
 9268
 9269        workspace.update_in(cx, |workspace, window, cx| {
 9270            assert!(!workspace.right_dock().read(cx).is_open());
 9271            assert!(panel.is_zoomed(window, cx));
 9272            assert!(workspace.zoomed.is_none());
 9273            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9274        });
 9275
 9276        // Opening the dock, when it's zoomed, retains focus
 9277        workspace.update_in(cx, |workspace, window, cx| {
 9278            workspace.toggle_dock(DockPosition::Right, window, cx)
 9279        });
 9280
 9281        workspace.update_in(cx, |workspace, window, cx| {
 9282            assert!(workspace.right_dock().read(cx).is_open());
 9283            assert!(panel.is_zoomed(window, cx));
 9284            assert!(workspace.zoomed.is_some());
 9285            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9286        });
 9287
 9288        // Unzoom and close the panel, zoom the active pane.
 9289        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9290        workspace.update_in(cx, |workspace, window, cx| {
 9291            workspace.toggle_dock(DockPosition::Right, window, cx)
 9292        });
 9293        pane.update_in(cx, |pane, window, cx| {
 9294            pane.toggle_zoom(&Default::default(), window, cx)
 9295        });
 9296
 9297        // Opening a dock unzooms the pane.
 9298        workspace.update_in(cx, |workspace, window, cx| {
 9299            workspace.toggle_dock(DockPosition::Right, window, cx)
 9300        });
 9301        workspace.update_in(cx, |workspace, window, cx| {
 9302            let pane = pane.read(cx);
 9303            assert!(!pane.is_zoomed());
 9304            assert!(!pane.focus_handle(cx).is_focused(window));
 9305            assert!(workspace.right_dock().read(cx).is_open());
 9306            assert!(workspace.zoomed.is_none());
 9307        });
 9308    }
 9309
 9310    #[gpui::test]
 9311    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
 9312        init_test(cx);
 9313        let fs = FakeFs::new(cx.executor());
 9314
 9315        let project = Project::test(fs, [], cx).await;
 9316        let (workspace, cx) =
 9317            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9318        workspace.update_in(cx, |workspace, window, cx| {
 9319            // Open two docks
 9320            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9321            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9322
 9323            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9324            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9325
 9326            assert!(left_dock.read(cx).is_open());
 9327            assert!(right_dock.read(cx).is_open());
 9328        });
 9329
 9330        workspace.update_in(cx, |workspace, window, cx| {
 9331            // Toggle all docks - should close both
 9332            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9333
 9334            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9335            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9336            assert!(!left_dock.read(cx).is_open());
 9337            assert!(!right_dock.read(cx).is_open());
 9338        });
 9339
 9340        workspace.update_in(cx, |workspace, window, cx| {
 9341            // Toggle again - should reopen both
 9342            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9343
 9344            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9345            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9346            assert!(left_dock.read(cx).is_open());
 9347            assert!(right_dock.read(cx).is_open());
 9348        });
 9349    }
 9350
 9351    #[gpui::test]
 9352    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
 9353        init_test(cx);
 9354        let fs = FakeFs::new(cx.executor());
 9355
 9356        let project = Project::test(fs, [], cx).await;
 9357        let (workspace, cx) =
 9358            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9359        workspace.update_in(cx, |workspace, window, cx| {
 9360            // Open two docks
 9361            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9362            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9363
 9364            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9365            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9366
 9367            assert!(left_dock.read(cx).is_open());
 9368            assert!(right_dock.read(cx).is_open());
 9369        });
 9370
 9371        workspace.update_in(cx, |workspace, window, cx| {
 9372            // Close them manually
 9373            workspace.toggle_dock(DockPosition::Left, window, cx);
 9374            workspace.toggle_dock(DockPosition::Right, window, cx);
 9375
 9376            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9377            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9378            assert!(!left_dock.read(cx).is_open());
 9379            assert!(!right_dock.read(cx).is_open());
 9380        });
 9381
 9382        workspace.update_in(cx, |workspace, window, cx| {
 9383            // Toggle all docks - only last closed (right dock) should reopen
 9384            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9385
 9386            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9387            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9388            assert!(!left_dock.read(cx).is_open());
 9389            assert!(right_dock.read(cx).is_open());
 9390        });
 9391    }
 9392
 9393    #[gpui::test]
 9394    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
 9395        init_test(cx);
 9396        let fs = FakeFs::new(cx.executor());
 9397        let project = Project::test(fs, [], cx).await;
 9398        let (workspace, cx) =
 9399            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9400
 9401        // Open two docks (left and right) with one panel each
 9402        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
 9403            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, cx));
 9404            workspace.add_panel(left_panel.clone(), window, cx);
 9405
 9406            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 9407            workspace.add_panel(right_panel.clone(), window, cx);
 9408
 9409            workspace.toggle_dock(DockPosition::Left, window, cx);
 9410            workspace.toggle_dock(DockPosition::Right, window, cx);
 9411
 9412            // Verify initial state
 9413            assert!(
 9414                workspace.left_dock().read(cx).is_open(),
 9415                "Left dock should be open"
 9416            );
 9417            assert_eq!(
 9418                workspace
 9419                    .left_dock()
 9420                    .read(cx)
 9421                    .visible_panel()
 9422                    .unwrap()
 9423                    .panel_id(),
 9424                left_panel.panel_id(),
 9425                "Left panel should be visible in left dock"
 9426            );
 9427            assert!(
 9428                workspace.right_dock().read(cx).is_open(),
 9429                "Right dock should be open"
 9430            );
 9431            assert_eq!(
 9432                workspace
 9433                    .right_dock()
 9434                    .read(cx)
 9435                    .visible_panel()
 9436                    .unwrap()
 9437                    .panel_id(),
 9438                right_panel.panel_id(),
 9439                "Right panel should be visible in right dock"
 9440            );
 9441            assert!(
 9442                !workspace.bottom_dock().read(cx).is_open(),
 9443                "Bottom dock should be closed"
 9444            );
 9445
 9446            (left_panel, right_panel)
 9447        });
 9448
 9449        // Focus the left panel and move it to the next position (bottom dock)
 9450        workspace.update_in(cx, |workspace, window, cx| {
 9451            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
 9452            assert!(
 9453                left_panel.read(cx).focus_handle(cx).is_focused(window),
 9454                "Left panel should be focused"
 9455            );
 9456        });
 9457
 9458        cx.dispatch_action(MoveFocusedPanelToNextPosition);
 9459
 9460        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
 9461        workspace.update(cx, |workspace, cx| {
 9462            assert!(
 9463                !workspace.left_dock().read(cx).is_open(),
 9464                "Left dock should be closed"
 9465            );
 9466            assert!(
 9467                workspace.bottom_dock().read(cx).is_open(),
 9468                "Bottom dock should now be open"
 9469            );
 9470            assert_eq!(
 9471                left_panel.read(cx).position,
 9472                DockPosition::Bottom,
 9473                "Left panel should now be in the bottom dock"
 9474            );
 9475            assert_eq!(
 9476                workspace
 9477                    .bottom_dock()
 9478                    .read(cx)
 9479                    .visible_panel()
 9480                    .unwrap()
 9481                    .panel_id(),
 9482                left_panel.panel_id(),
 9483                "Left panel should be the visible panel in the bottom dock"
 9484            );
 9485        });
 9486
 9487        // Toggle all docks off
 9488        workspace.update_in(cx, |workspace, window, cx| {
 9489            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9490            assert!(
 9491                !workspace.left_dock().read(cx).is_open(),
 9492                "Left dock should be closed"
 9493            );
 9494            assert!(
 9495                !workspace.right_dock().read(cx).is_open(),
 9496                "Right dock should be closed"
 9497            );
 9498            assert!(
 9499                !workspace.bottom_dock().read(cx).is_open(),
 9500                "Bottom dock should be closed"
 9501            );
 9502        });
 9503
 9504        // Toggle all docks back on and verify positions are restored
 9505        workspace.update_in(cx, |workspace, window, cx| {
 9506            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9507            assert!(
 9508                !workspace.left_dock().read(cx).is_open(),
 9509                "Left dock should remain closed"
 9510            );
 9511            assert!(
 9512                workspace.right_dock().read(cx).is_open(),
 9513                "Right dock should remain open"
 9514            );
 9515            assert!(
 9516                workspace.bottom_dock().read(cx).is_open(),
 9517                "Bottom dock should remain open"
 9518            );
 9519            assert_eq!(
 9520                left_panel.read(cx).position,
 9521                DockPosition::Bottom,
 9522                "Left panel should remain in the bottom dock"
 9523            );
 9524            assert_eq!(
 9525                right_panel.read(cx).position,
 9526                DockPosition::Right,
 9527                "Right panel should remain in the right dock"
 9528            );
 9529            assert_eq!(
 9530                workspace
 9531                    .bottom_dock()
 9532                    .read(cx)
 9533                    .visible_panel()
 9534                    .unwrap()
 9535                    .panel_id(),
 9536                left_panel.panel_id(),
 9537                "Left panel should be the visible panel in the right dock"
 9538            );
 9539        });
 9540    }
 9541
 9542    #[gpui::test]
 9543    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
 9544        init_test(cx);
 9545
 9546        let fs = FakeFs::new(cx.executor());
 9547
 9548        let project = Project::test(fs, None, cx).await;
 9549        let (workspace, cx) =
 9550            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9551
 9552        // Let's arrange the panes like this:
 9553        //
 9554        // +-----------------------+
 9555        // |         top           |
 9556        // +------+--------+-------+
 9557        // | left | center | right |
 9558        // +------+--------+-------+
 9559        // |        bottom         |
 9560        // +-----------------------+
 9561
 9562        let top_item = cx.new(|cx| {
 9563            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
 9564        });
 9565        let bottom_item = cx.new(|cx| {
 9566            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
 9567        });
 9568        let left_item = cx.new(|cx| {
 9569            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
 9570        });
 9571        let right_item = cx.new(|cx| {
 9572            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
 9573        });
 9574        let center_item = cx.new(|cx| {
 9575            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
 9576        });
 9577
 9578        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9579            let top_pane_id = workspace.active_pane().entity_id();
 9580            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
 9581            workspace.split_pane(
 9582                workspace.active_pane().clone(),
 9583                SplitDirection::Down,
 9584                window,
 9585                cx,
 9586            );
 9587            top_pane_id
 9588        });
 9589        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9590            let bottom_pane_id = workspace.active_pane().entity_id();
 9591            workspace.add_item_to_active_pane(
 9592                Box::new(bottom_item.clone()),
 9593                None,
 9594                false,
 9595                window,
 9596                cx,
 9597            );
 9598            workspace.split_pane(
 9599                workspace.active_pane().clone(),
 9600                SplitDirection::Up,
 9601                window,
 9602                cx,
 9603            );
 9604            bottom_pane_id
 9605        });
 9606        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9607            let left_pane_id = workspace.active_pane().entity_id();
 9608            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
 9609            workspace.split_pane(
 9610                workspace.active_pane().clone(),
 9611                SplitDirection::Right,
 9612                window,
 9613                cx,
 9614            );
 9615            left_pane_id
 9616        });
 9617        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9618            let right_pane_id = workspace.active_pane().entity_id();
 9619            workspace.add_item_to_active_pane(
 9620                Box::new(right_item.clone()),
 9621                None,
 9622                false,
 9623                window,
 9624                cx,
 9625            );
 9626            workspace.split_pane(
 9627                workspace.active_pane().clone(),
 9628                SplitDirection::Left,
 9629                window,
 9630                cx,
 9631            );
 9632            right_pane_id
 9633        });
 9634        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9635            let center_pane_id = workspace.active_pane().entity_id();
 9636            workspace.add_item_to_active_pane(
 9637                Box::new(center_item.clone()),
 9638                None,
 9639                false,
 9640                window,
 9641                cx,
 9642            );
 9643            center_pane_id
 9644        });
 9645        cx.executor().run_until_parked();
 9646
 9647        workspace.update_in(cx, |workspace, window, cx| {
 9648            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
 9649
 9650            // Join into next from center pane into right
 9651            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9652        });
 9653
 9654        workspace.update_in(cx, |workspace, window, cx| {
 9655            let active_pane = workspace.active_pane();
 9656            assert_eq!(right_pane_id, active_pane.entity_id());
 9657            assert_eq!(2, active_pane.read(cx).items_len());
 9658            let item_ids_in_pane =
 9659                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9660            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9661            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9662
 9663            // Join into next from right pane into bottom
 9664            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9665        });
 9666
 9667        workspace.update_in(cx, |workspace, window, cx| {
 9668            let active_pane = workspace.active_pane();
 9669            assert_eq!(bottom_pane_id, active_pane.entity_id());
 9670            assert_eq!(3, active_pane.read(cx).items_len());
 9671            let item_ids_in_pane =
 9672                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9673            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9674            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9675            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9676
 9677            // Join into next from bottom pane into left
 9678            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9679        });
 9680
 9681        workspace.update_in(cx, |workspace, window, cx| {
 9682            let active_pane = workspace.active_pane();
 9683            assert_eq!(left_pane_id, active_pane.entity_id());
 9684            assert_eq!(4, active_pane.read(cx).items_len());
 9685            let item_ids_in_pane =
 9686                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9687            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9688            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9689            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9690            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9691
 9692            // Join into next from left pane into top
 9693            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9694        });
 9695
 9696        workspace.update_in(cx, |workspace, window, cx| {
 9697            let active_pane = workspace.active_pane();
 9698            assert_eq!(top_pane_id, active_pane.entity_id());
 9699            assert_eq!(5, active_pane.read(cx).items_len());
 9700            let item_ids_in_pane =
 9701                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9702            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9703            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9704            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9705            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9706            assert!(item_ids_in_pane.contains(&top_item.item_id()));
 9707
 9708            // Single pane left: no-op
 9709            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
 9710        });
 9711
 9712        workspace.update(cx, |workspace, _cx| {
 9713            let active_pane = workspace.active_pane();
 9714            assert_eq!(top_pane_id, active_pane.entity_id());
 9715        });
 9716    }
 9717
 9718    fn add_an_item_to_active_pane(
 9719        cx: &mut VisualTestContext,
 9720        workspace: &Entity<Workspace>,
 9721        item_id: u64,
 9722    ) -> Entity<TestItem> {
 9723        let item = cx.new(|cx| {
 9724            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
 9725                item_id,
 9726                "item{item_id}.txt",
 9727                cx,
 9728            )])
 9729        });
 9730        workspace.update_in(cx, |workspace, window, cx| {
 9731            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
 9732        });
 9733        item
 9734    }
 9735
 9736    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
 9737        workspace.update_in(cx, |workspace, window, cx| {
 9738            workspace.split_pane(
 9739                workspace.active_pane().clone(),
 9740                SplitDirection::Right,
 9741                window,
 9742                cx,
 9743            )
 9744        })
 9745    }
 9746
 9747    #[gpui::test]
 9748    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
 9749        init_test(cx);
 9750        let fs = FakeFs::new(cx.executor());
 9751        let project = Project::test(fs, None, cx).await;
 9752        let (workspace, cx) =
 9753            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9754
 9755        add_an_item_to_active_pane(cx, &workspace, 1);
 9756        split_pane(cx, &workspace);
 9757        add_an_item_to_active_pane(cx, &workspace, 2);
 9758        split_pane(cx, &workspace); // empty pane
 9759        split_pane(cx, &workspace);
 9760        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
 9761
 9762        cx.executor().run_until_parked();
 9763
 9764        workspace.update(cx, |workspace, cx| {
 9765            let num_panes = workspace.panes().len();
 9766            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9767            let active_item = workspace
 9768                .active_pane()
 9769                .read(cx)
 9770                .active_item()
 9771                .expect("item is in focus");
 9772
 9773            assert_eq!(num_panes, 4);
 9774            assert_eq!(num_items_in_current_pane, 1);
 9775            assert_eq!(active_item.item_id(), last_item.item_id());
 9776        });
 9777
 9778        workspace.update_in(cx, |workspace, window, cx| {
 9779            workspace.join_all_panes(window, cx);
 9780        });
 9781
 9782        workspace.update(cx, |workspace, cx| {
 9783            let num_panes = workspace.panes().len();
 9784            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9785            let active_item = workspace
 9786                .active_pane()
 9787                .read(cx)
 9788                .active_item()
 9789                .expect("item is in focus");
 9790
 9791            assert_eq!(num_panes, 1);
 9792            assert_eq!(num_items_in_current_pane, 3);
 9793            assert_eq!(active_item.item_id(), last_item.item_id());
 9794        });
 9795    }
 9796    struct TestModal(FocusHandle);
 9797
 9798    impl TestModal {
 9799        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
 9800            Self(cx.focus_handle())
 9801        }
 9802    }
 9803
 9804    impl EventEmitter<DismissEvent> for TestModal {}
 9805
 9806    impl Focusable for TestModal {
 9807        fn focus_handle(&self, _cx: &App) -> FocusHandle {
 9808            self.0.clone()
 9809        }
 9810    }
 9811
 9812    impl ModalView for TestModal {}
 9813
 9814    impl Render for TestModal {
 9815        fn render(
 9816            &mut self,
 9817            _window: &mut Window,
 9818            _cx: &mut Context<TestModal>,
 9819        ) -> impl IntoElement {
 9820            div().track_focus(&self.0)
 9821        }
 9822    }
 9823
 9824    #[gpui::test]
 9825    async fn test_panels(cx: &mut gpui::TestAppContext) {
 9826        init_test(cx);
 9827        let fs = FakeFs::new(cx.executor());
 9828
 9829        let project = Project::test(fs, [], cx).await;
 9830        let (workspace, cx) =
 9831            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9832
 9833        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
 9834            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, cx));
 9835            workspace.add_panel(panel_1.clone(), window, cx);
 9836            workspace.toggle_dock(DockPosition::Left, window, cx);
 9837            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 9838            workspace.add_panel(panel_2.clone(), window, cx);
 9839            workspace.toggle_dock(DockPosition::Right, window, cx);
 9840
 9841            let left_dock = workspace.left_dock();
 9842            assert_eq!(
 9843                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9844                panel_1.panel_id()
 9845            );
 9846            assert_eq!(
 9847                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9848                panel_1.size(window, cx)
 9849            );
 9850
 9851            left_dock.update(cx, |left_dock, cx| {
 9852                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
 9853            });
 9854            assert_eq!(
 9855                workspace
 9856                    .right_dock()
 9857                    .read(cx)
 9858                    .visible_panel()
 9859                    .unwrap()
 9860                    .panel_id(),
 9861                panel_2.panel_id(),
 9862            );
 9863
 9864            (panel_1, panel_2)
 9865        });
 9866
 9867        // Move panel_1 to the right
 9868        panel_1.update_in(cx, |panel_1, window, cx| {
 9869            panel_1.set_position(DockPosition::Right, window, cx)
 9870        });
 9871
 9872        workspace.update_in(cx, |workspace, window, cx| {
 9873            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
 9874            // Since it was the only panel on the left, the left dock should now be closed.
 9875            assert!(!workspace.left_dock().read(cx).is_open());
 9876            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
 9877            let right_dock = workspace.right_dock();
 9878            assert_eq!(
 9879                right_dock.read(cx).visible_panel().unwrap().panel_id(),
 9880                panel_1.panel_id()
 9881            );
 9882            assert_eq!(
 9883                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9884                px(1337.)
 9885            );
 9886
 9887            // Now we move panel_2 to the left
 9888            panel_2.set_position(DockPosition::Left, window, cx);
 9889        });
 9890
 9891        workspace.update(cx, |workspace, cx| {
 9892            // Since panel_2 was not visible on the right, we don't open the left dock.
 9893            assert!(!workspace.left_dock().read(cx).is_open());
 9894            // And the right dock is unaffected in its displaying of panel_1
 9895            assert!(workspace.right_dock().read(cx).is_open());
 9896            assert_eq!(
 9897                workspace
 9898                    .right_dock()
 9899                    .read(cx)
 9900                    .visible_panel()
 9901                    .unwrap()
 9902                    .panel_id(),
 9903                panel_1.panel_id(),
 9904            );
 9905        });
 9906
 9907        // Move panel_1 back to the left
 9908        panel_1.update_in(cx, |panel_1, window, cx| {
 9909            panel_1.set_position(DockPosition::Left, window, cx)
 9910        });
 9911
 9912        workspace.update_in(cx, |workspace, window, cx| {
 9913            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
 9914            let left_dock = workspace.left_dock();
 9915            assert!(left_dock.read(cx).is_open());
 9916            assert_eq!(
 9917                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9918                panel_1.panel_id()
 9919            );
 9920            assert_eq!(
 9921                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9922                px(1337.)
 9923            );
 9924            // And the right dock should be closed as it no longer has any panels.
 9925            assert!(!workspace.right_dock().read(cx).is_open());
 9926
 9927            // Now we move panel_1 to the bottom
 9928            panel_1.set_position(DockPosition::Bottom, window, cx);
 9929        });
 9930
 9931        workspace.update_in(cx, |workspace, window, cx| {
 9932            // Since panel_1 was visible on the left, we close the left dock.
 9933            assert!(!workspace.left_dock().read(cx).is_open());
 9934            // The bottom dock is sized based on the panel's default size,
 9935            // since the panel orientation changed from vertical to horizontal.
 9936            let bottom_dock = workspace.bottom_dock();
 9937            assert_eq!(
 9938                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9939                panel_1.size(window, cx),
 9940            );
 9941            // Close bottom dock and move panel_1 back to the left.
 9942            bottom_dock.update(cx, |bottom_dock, cx| {
 9943                bottom_dock.set_open(false, window, cx)
 9944            });
 9945            panel_1.set_position(DockPosition::Left, window, cx);
 9946        });
 9947
 9948        // Emit activated event on panel 1
 9949        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
 9950
 9951        // Now the left dock is open and panel_1 is active and focused.
 9952        workspace.update_in(cx, |workspace, window, cx| {
 9953            let left_dock = workspace.left_dock();
 9954            assert!(left_dock.read(cx).is_open());
 9955            assert_eq!(
 9956                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9957                panel_1.panel_id(),
 9958            );
 9959            assert!(panel_1.focus_handle(cx).is_focused(window));
 9960        });
 9961
 9962        // Emit closed event on panel 2, which is not active
 9963        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 9964
 9965        // Wo don't close the left dock, because panel_2 wasn't the active panel
 9966        workspace.update(cx, |workspace, cx| {
 9967            let left_dock = workspace.left_dock();
 9968            assert!(left_dock.read(cx).is_open());
 9969            assert_eq!(
 9970                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9971                panel_1.panel_id(),
 9972            );
 9973        });
 9974
 9975        // Emitting a ZoomIn event shows the panel as zoomed.
 9976        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
 9977        workspace.read_with(cx, |workspace, _| {
 9978            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9979            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
 9980        });
 9981
 9982        // Move panel to another dock while it is zoomed
 9983        panel_1.update_in(cx, |panel, window, cx| {
 9984            panel.set_position(DockPosition::Right, window, cx)
 9985        });
 9986        workspace.read_with(cx, |workspace, _| {
 9987            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9988
 9989            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9990        });
 9991
 9992        // This is a helper for getting a:
 9993        // - valid focus on an element,
 9994        // - that isn't a part of the panes and panels system of the Workspace,
 9995        // - and doesn't trigger the 'on_focus_lost' API.
 9996        let focus_other_view = {
 9997            let workspace = workspace.clone();
 9998            move |cx: &mut VisualTestContext| {
 9999                workspace.update_in(cx, |workspace, window, cx| {
10000                    if workspace.active_modal::<TestModal>(cx).is_some() {
10001                        workspace.toggle_modal(window, cx, TestModal::new);
10002                        workspace.toggle_modal(window, cx, TestModal::new);
10003                    } else {
10004                        workspace.toggle_modal(window, cx, TestModal::new);
10005                    }
10006                })
10007            }
10008        };
10009
10010        // If focus is transferred to another view that's not a panel or another pane, we still show
10011        // the panel as zoomed.
10012        focus_other_view(cx);
10013        workspace.read_with(cx, |workspace, _| {
10014            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10015            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10016        });
10017
10018        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10019        workspace.update_in(cx, |_workspace, window, cx| {
10020            cx.focus_self(window);
10021        });
10022        workspace.read_with(cx, |workspace, _| {
10023            assert_eq!(workspace.zoomed, None);
10024            assert_eq!(workspace.zoomed_position, None);
10025        });
10026
10027        // If focus is transferred again to another view that's not a panel or a pane, we won't
10028        // show the panel as zoomed because it wasn't zoomed before.
10029        focus_other_view(cx);
10030        workspace.read_with(cx, |workspace, _| {
10031            assert_eq!(workspace.zoomed, None);
10032            assert_eq!(workspace.zoomed_position, None);
10033        });
10034
10035        // When the panel is activated, it is zoomed again.
10036        cx.dispatch_action(ToggleRightDock);
10037        workspace.read_with(cx, |workspace, _| {
10038            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10039            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10040        });
10041
10042        // Emitting a ZoomOut event unzooms the panel.
10043        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10044        workspace.read_with(cx, |workspace, _| {
10045            assert_eq!(workspace.zoomed, None);
10046            assert_eq!(workspace.zoomed_position, None);
10047        });
10048
10049        // Emit closed event on panel 1, which is active
10050        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10051
10052        // Now the left dock is closed, because panel_1 was the active panel
10053        workspace.update(cx, |workspace, cx| {
10054            let right_dock = workspace.right_dock();
10055            assert!(!right_dock.read(cx).is_open());
10056        });
10057    }
10058
10059    #[gpui::test]
10060    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10061        init_test(cx);
10062
10063        let fs = FakeFs::new(cx.background_executor.clone());
10064        let project = Project::test(fs, [], cx).await;
10065        let (workspace, cx) =
10066            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10067        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10068
10069        let dirty_regular_buffer = cx.new(|cx| {
10070            TestItem::new(cx)
10071                .with_dirty(true)
10072                .with_label("1.txt")
10073                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10074        });
10075        let dirty_regular_buffer_2 = cx.new(|cx| {
10076            TestItem::new(cx)
10077                .with_dirty(true)
10078                .with_label("2.txt")
10079                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10080        });
10081        let dirty_multi_buffer_with_both = cx.new(|cx| {
10082            TestItem::new(cx)
10083                .with_dirty(true)
10084                .with_buffer_kind(ItemBufferKind::Multibuffer)
10085                .with_label("Fake Project Search")
10086                .with_project_items(&[
10087                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10088                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10089                ])
10090        });
10091        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10092        workspace.update_in(cx, |workspace, window, cx| {
10093            workspace.add_item(
10094                pane.clone(),
10095                Box::new(dirty_regular_buffer.clone()),
10096                None,
10097                false,
10098                false,
10099                window,
10100                cx,
10101            );
10102            workspace.add_item(
10103                pane.clone(),
10104                Box::new(dirty_regular_buffer_2.clone()),
10105                None,
10106                false,
10107                false,
10108                window,
10109                cx,
10110            );
10111            workspace.add_item(
10112                pane.clone(),
10113                Box::new(dirty_multi_buffer_with_both.clone()),
10114                None,
10115                false,
10116                false,
10117                window,
10118                cx,
10119            );
10120        });
10121
10122        pane.update_in(cx, |pane, window, cx| {
10123            pane.activate_item(2, true, true, window, cx);
10124            assert_eq!(
10125                pane.active_item().unwrap().item_id(),
10126                multi_buffer_with_both_files_id,
10127                "Should select the multi buffer in the pane"
10128            );
10129        });
10130        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10131            pane.close_other_items(
10132                &CloseOtherItems {
10133                    save_intent: Some(SaveIntent::Save),
10134                    close_pinned: true,
10135                },
10136                None,
10137                window,
10138                cx,
10139            )
10140        });
10141        cx.background_executor.run_until_parked();
10142        assert!(!cx.has_pending_prompt());
10143        close_all_but_multi_buffer_task
10144            .await
10145            .expect("Closing all buffers but the multi buffer failed");
10146        pane.update(cx, |pane, cx| {
10147            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10148            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10149            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10150            assert_eq!(pane.items_len(), 1);
10151            assert_eq!(
10152                pane.active_item().unwrap().item_id(),
10153                multi_buffer_with_both_files_id,
10154                "Should have only the multi buffer left in the pane"
10155            );
10156            assert!(
10157                dirty_multi_buffer_with_both.read(cx).is_dirty,
10158                "The multi buffer containing the unsaved buffer should still be dirty"
10159            );
10160        });
10161
10162        dirty_regular_buffer.update(cx, |buffer, cx| {
10163            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10164        });
10165
10166        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10167            pane.close_active_item(
10168                &CloseActiveItem {
10169                    save_intent: Some(SaveIntent::Close),
10170                    close_pinned: false,
10171                },
10172                window,
10173                cx,
10174            )
10175        });
10176        cx.background_executor.run_until_parked();
10177        assert!(
10178            cx.has_pending_prompt(),
10179            "Dirty multi buffer should prompt a save dialog"
10180        );
10181        cx.simulate_prompt_answer("Save");
10182        cx.background_executor.run_until_parked();
10183        close_multi_buffer_task
10184            .await
10185            .expect("Closing the multi buffer failed");
10186        pane.update(cx, |pane, cx| {
10187            assert_eq!(
10188                dirty_multi_buffer_with_both.read(cx).save_count,
10189                1,
10190                "Multi buffer item should get be saved"
10191            );
10192            // Test impl does not save inner items, so we do not assert them
10193            assert_eq!(
10194                pane.items_len(),
10195                0,
10196                "No more items should be left in the pane"
10197            );
10198            assert!(pane.active_item().is_none());
10199        });
10200    }
10201
10202    #[gpui::test]
10203    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
10204        cx: &mut TestAppContext,
10205    ) {
10206        init_test(cx);
10207
10208        let fs = FakeFs::new(cx.background_executor.clone());
10209        let project = Project::test(fs, [], cx).await;
10210        let (workspace, cx) =
10211            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10212        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10213
10214        let dirty_regular_buffer = cx.new(|cx| {
10215            TestItem::new(cx)
10216                .with_dirty(true)
10217                .with_label("1.txt")
10218                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10219        });
10220        let dirty_regular_buffer_2 = cx.new(|cx| {
10221            TestItem::new(cx)
10222                .with_dirty(true)
10223                .with_label("2.txt")
10224                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10225        });
10226        let clear_regular_buffer = cx.new(|cx| {
10227            TestItem::new(cx)
10228                .with_label("3.txt")
10229                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10230        });
10231
10232        let dirty_multi_buffer_with_both = cx.new(|cx| {
10233            TestItem::new(cx)
10234                .with_dirty(true)
10235                .with_buffer_kind(ItemBufferKind::Multibuffer)
10236                .with_label("Fake Project Search")
10237                .with_project_items(&[
10238                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10239                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10240                    clear_regular_buffer.read(cx).project_items[0].clone(),
10241                ])
10242        });
10243        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10244        workspace.update_in(cx, |workspace, window, cx| {
10245            workspace.add_item(
10246                pane.clone(),
10247                Box::new(dirty_regular_buffer.clone()),
10248                None,
10249                false,
10250                false,
10251                window,
10252                cx,
10253            );
10254            workspace.add_item(
10255                pane.clone(),
10256                Box::new(dirty_multi_buffer_with_both.clone()),
10257                None,
10258                false,
10259                false,
10260                window,
10261                cx,
10262            );
10263        });
10264
10265        pane.update_in(cx, |pane, window, cx| {
10266            pane.activate_item(1, true, true, window, cx);
10267            assert_eq!(
10268                pane.active_item().unwrap().item_id(),
10269                multi_buffer_with_both_files_id,
10270                "Should select the multi buffer in the pane"
10271            );
10272        });
10273        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10274            pane.close_active_item(
10275                &CloseActiveItem {
10276                    save_intent: None,
10277                    close_pinned: false,
10278                },
10279                window,
10280                cx,
10281            )
10282        });
10283        cx.background_executor.run_until_parked();
10284        assert!(
10285            cx.has_pending_prompt(),
10286            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
10287        );
10288    }
10289
10290    /// Tests that when `close_on_file_delete` is enabled, files are automatically
10291    /// closed when they are deleted from disk.
10292    #[gpui::test]
10293    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
10294        init_test(cx);
10295
10296        // Enable the close_on_disk_deletion setting
10297        cx.update_global(|store: &mut SettingsStore, cx| {
10298            store.update_user_settings(cx, |settings| {
10299                settings.workspace.close_on_file_delete = Some(true);
10300            });
10301        });
10302
10303        let fs = FakeFs::new(cx.background_executor.clone());
10304        let project = Project::test(fs, [], cx).await;
10305        let (workspace, cx) =
10306            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10307        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10308
10309        // Create a test item that simulates a file
10310        let item = cx.new(|cx| {
10311            TestItem::new(cx)
10312                .with_label("test.txt")
10313                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10314        });
10315
10316        // Add item to workspace
10317        workspace.update_in(cx, |workspace, window, cx| {
10318            workspace.add_item(
10319                pane.clone(),
10320                Box::new(item.clone()),
10321                None,
10322                false,
10323                false,
10324                window,
10325                cx,
10326            );
10327        });
10328
10329        // Verify the item is in the pane
10330        pane.read_with(cx, |pane, _| {
10331            assert_eq!(pane.items().count(), 1);
10332        });
10333
10334        // Simulate file deletion by setting the item's deleted state
10335        item.update(cx, |item, _| {
10336            item.set_has_deleted_file(true);
10337        });
10338
10339        // Emit UpdateTab event to trigger the close behavior
10340        cx.run_until_parked();
10341        item.update(cx, |_, cx| {
10342            cx.emit(ItemEvent::UpdateTab);
10343        });
10344
10345        // Allow the close operation to complete
10346        cx.run_until_parked();
10347
10348        // Verify the item was automatically closed
10349        pane.read_with(cx, |pane, _| {
10350            assert_eq!(
10351                pane.items().count(),
10352                0,
10353                "Item should be automatically closed when file is deleted"
10354            );
10355        });
10356    }
10357
10358    /// Tests that when `close_on_file_delete` is disabled (default), files remain
10359    /// open with a strikethrough when they are deleted from disk.
10360    #[gpui::test]
10361    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
10362        init_test(cx);
10363
10364        // Ensure close_on_disk_deletion is disabled (default)
10365        cx.update_global(|store: &mut SettingsStore, cx| {
10366            store.update_user_settings(cx, |settings| {
10367                settings.workspace.close_on_file_delete = Some(false);
10368            });
10369        });
10370
10371        let fs = FakeFs::new(cx.background_executor.clone());
10372        let project = Project::test(fs, [], cx).await;
10373        let (workspace, cx) =
10374            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10375        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10376
10377        // Create a test item that simulates a file
10378        let item = cx.new(|cx| {
10379            TestItem::new(cx)
10380                .with_label("test.txt")
10381                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10382        });
10383
10384        // Add item to workspace
10385        workspace.update_in(cx, |workspace, window, cx| {
10386            workspace.add_item(
10387                pane.clone(),
10388                Box::new(item.clone()),
10389                None,
10390                false,
10391                false,
10392                window,
10393                cx,
10394            );
10395        });
10396
10397        // Verify the item is in the pane
10398        pane.read_with(cx, |pane, _| {
10399            assert_eq!(pane.items().count(), 1);
10400        });
10401
10402        // Simulate file deletion
10403        item.update(cx, |item, _| {
10404            item.set_has_deleted_file(true);
10405        });
10406
10407        // Emit UpdateTab event
10408        cx.run_until_parked();
10409        item.update(cx, |_, cx| {
10410            cx.emit(ItemEvent::UpdateTab);
10411        });
10412
10413        // Allow any potential close operation to complete
10414        cx.run_until_parked();
10415
10416        // Verify the item remains open (with strikethrough)
10417        pane.read_with(cx, |pane, _| {
10418            assert_eq!(
10419                pane.items().count(),
10420                1,
10421                "Item should remain open when close_on_disk_deletion is disabled"
10422            );
10423        });
10424
10425        // Verify the item shows as deleted
10426        item.read_with(cx, |item, _| {
10427            assert!(
10428                item.has_deleted_file,
10429                "Item should be marked as having deleted file"
10430            );
10431        });
10432    }
10433
10434    /// Tests that dirty files are not automatically closed when deleted from disk,
10435    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
10436    /// unsaved changes without being prompted.
10437    #[gpui::test]
10438    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
10439        init_test(cx);
10440
10441        // Enable the close_on_file_delete setting
10442        cx.update_global(|store: &mut SettingsStore, cx| {
10443            store.update_user_settings(cx, |settings| {
10444                settings.workspace.close_on_file_delete = Some(true);
10445            });
10446        });
10447
10448        let fs = FakeFs::new(cx.background_executor.clone());
10449        let project = Project::test(fs, [], cx).await;
10450        let (workspace, cx) =
10451            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10452        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10453
10454        // Create a dirty test item
10455        let item = cx.new(|cx| {
10456            TestItem::new(cx)
10457                .with_dirty(true)
10458                .with_label("test.txt")
10459                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10460        });
10461
10462        // Add item to workspace
10463        workspace.update_in(cx, |workspace, window, cx| {
10464            workspace.add_item(
10465                pane.clone(),
10466                Box::new(item.clone()),
10467                None,
10468                false,
10469                false,
10470                window,
10471                cx,
10472            );
10473        });
10474
10475        // Simulate file deletion
10476        item.update(cx, |item, _| {
10477            item.set_has_deleted_file(true);
10478        });
10479
10480        // Emit UpdateTab event to trigger the close behavior
10481        cx.run_until_parked();
10482        item.update(cx, |_, cx| {
10483            cx.emit(ItemEvent::UpdateTab);
10484        });
10485
10486        // Allow any potential close operation to complete
10487        cx.run_until_parked();
10488
10489        // Verify the item remains open (dirty files are not auto-closed)
10490        pane.read_with(cx, |pane, _| {
10491            assert_eq!(
10492                pane.items().count(),
10493                1,
10494                "Dirty items should not be automatically closed even when file is deleted"
10495            );
10496        });
10497
10498        // Verify the item is marked as deleted and still dirty
10499        item.read_with(cx, |item, _| {
10500            assert!(
10501                item.has_deleted_file,
10502                "Item should be marked as having deleted file"
10503            );
10504            assert!(item.is_dirty, "Item should still be dirty");
10505        });
10506    }
10507
10508    /// Tests that navigation history is cleaned up when files are auto-closed
10509    /// due to deletion from disk.
10510    #[gpui::test]
10511    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
10512        init_test(cx);
10513
10514        // Enable the close_on_file_delete setting
10515        cx.update_global(|store: &mut SettingsStore, cx| {
10516            store.update_user_settings(cx, |settings| {
10517                settings.workspace.close_on_file_delete = Some(true);
10518            });
10519        });
10520
10521        let fs = FakeFs::new(cx.background_executor.clone());
10522        let project = Project::test(fs, [], cx).await;
10523        let (workspace, cx) =
10524            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10525        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10526
10527        // Create test items
10528        let item1 = cx.new(|cx| {
10529            TestItem::new(cx)
10530                .with_label("test1.txt")
10531                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
10532        });
10533        let item1_id = item1.item_id();
10534
10535        let item2 = cx.new(|cx| {
10536            TestItem::new(cx)
10537                .with_label("test2.txt")
10538                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
10539        });
10540
10541        // Add items to workspace
10542        workspace.update_in(cx, |workspace, window, cx| {
10543            workspace.add_item(
10544                pane.clone(),
10545                Box::new(item1.clone()),
10546                None,
10547                false,
10548                false,
10549                window,
10550                cx,
10551            );
10552            workspace.add_item(
10553                pane.clone(),
10554                Box::new(item2.clone()),
10555                None,
10556                false,
10557                false,
10558                window,
10559                cx,
10560            );
10561        });
10562
10563        // Activate item1 to ensure it gets navigation entries
10564        pane.update_in(cx, |pane, window, cx| {
10565            pane.activate_item(0, true, true, window, cx);
10566        });
10567
10568        // Switch to item2 and back to create navigation history
10569        pane.update_in(cx, |pane, window, cx| {
10570            pane.activate_item(1, true, true, window, cx);
10571        });
10572        cx.run_until_parked();
10573
10574        pane.update_in(cx, |pane, window, cx| {
10575            pane.activate_item(0, true, true, window, cx);
10576        });
10577        cx.run_until_parked();
10578
10579        // Simulate file deletion for item1
10580        item1.update(cx, |item, _| {
10581            item.set_has_deleted_file(true);
10582        });
10583
10584        // Emit UpdateTab event to trigger the close behavior
10585        item1.update(cx, |_, cx| {
10586            cx.emit(ItemEvent::UpdateTab);
10587        });
10588        cx.run_until_parked();
10589
10590        // Verify item1 was closed
10591        pane.read_with(cx, |pane, _| {
10592            assert_eq!(
10593                pane.items().count(),
10594                1,
10595                "Should have 1 item remaining after auto-close"
10596            );
10597        });
10598
10599        // Check navigation history after close
10600        let has_item = pane.read_with(cx, |pane, cx| {
10601            let mut has_item = false;
10602            pane.nav_history().for_each_entry(cx, |entry, _| {
10603                if entry.item.id() == item1_id {
10604                    has_item = true;
10605                }
10606            });
10607            has_item
10608        });
10609
10610        assert!(
10611            !has_item,
10612            "Navigation history should not contain closed item entries"
10613        );
10614    }
10615
10616    #[gpui::test]
10617    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
10618        cx: &mut TestAppContext,
10619    ) {
10620        init_test(cx);
10621
10622        let fs = FakeFs::new(cx.background_executor.clone());
10623        let project = Project::test(fs, [], cx).await;
10624        let (workspace, cx) =
10625            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10626        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10627
10628        let dirty_regular_buffer = cx.new(|cx| {
10629            TestItem::new(cx)
10630                .with_dirty(true)
10631                .with_label("1.txt")
10632                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10633        });
10634        let dirty_regular_buffer_2 = cx.new(|cx| {
10635            TestItem::new(cx)
10636                .with_dirty(true)
10637                .with_label("2.txt")
10638                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10639        });
10640        let clear_regular_buffer = cx.new(|cx| {
10641            TestItem::new(cx)
10642                .with_label("3.txt")
10643                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10644        });
10645
10646        let dirty_multi_buffer = cx.new(|cx| {
10647            TestItem::new(cx)
10648                .with_dirty(true)
10649                .with_buffer_kind(ItemBufferKind::Multibuffer)
10650                .with_label("Fake Project Search")
10651                .with_project_items(&[
10652                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10653                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10654                    clear_regular_buffer.read(cx).project_items[0].clone(),
10655                ])
10656        });
10657        workspace.update_in(cx, |workspace, window, cx| {
10658            workspace.add_item(
10659                pane.clone(),
10660                Box::new(dirty_regular_buffer.clone()),
10661                None,
10662                false,
10663                false,
10664                window,
10665                cx,
10666            );
10667            workspace.add_item(
10668                pane.clone(),
10669                Box::new(dirty_regular_buffer_2.clone()),
10670                None,
10671                false,
10672                false,
10673                window,
10674                cx,
10675            );
10676            workspace.add_item(
10677                pane.clone(),
10678                Box::new(dirty_multi_buffer.clone()),
10679                None,
10680                false,
10681                false,
10682                window,
10683                cx,
10684            );
10685        });
10686
10687        pane.update_in(cx, |pane, window, cx| {
10688            pane.activate_item(2, true, true, window, cx);
10689            assert_eq!(
10690                pane.active_item().unwrap().item_id(),
10691                dirty_multi_buffer.item_id(),
10692                "Should select the multi buffer in the pane"
10693            );
10694        });
10695        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10696            pane.close_active_item(
10697                &CloseActiveItem {
10698                    save_intent: None,
10699                    close_pinned: false,
10700                },
10701                window,
10702                cx,
10703            )
10704        });
10705        cx.background_executor.run_until_parked();
10706        assert!(
10707            !cx.has_pending_prompt(),
10708            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
10709        );
10710        close_multi_buffer_task
10711            .await
10712            .expect("Closing multi buffer failed");
10713        pane.update(cx, |pane, cx| {
10714            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
10715            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
10716            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
10717            assert_eq!(
10718                pane.items()
10719                    .map(|item| item.item_id())
10720                    .sorted()
10721                    .collect::<Vec<_>>(),
10722                vec![
10723                    dirty_regular_buffer.item_id(),
10724                    dirty_regular_buffer_2.item_id(),
10725                ],
10726                "Should have no multi buffer left in the pane"
10727            );
10728            assert!(dirty_regular_buffer.read(cx).is_dirty);
10729            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
10730        });
10731    }
10732
10733    #[gpui::test]
10734    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
10735        init_test(cx);
10736        let fs = FakeFs::new(cx.executor());
10737        let project = Project::test(fs, [], cx).await;
10738        let (workspace, cx) =
10739            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10740
10741        // Add a new panel to the right dock, opening the dock and setting the
10742        // focus to the new panel.
10743        let panel = workspace.update_in(cx, |workspace, window, cx| {
10744            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
10745            workspace.add_panel(panel.clone(), window, cx);
10746
10747            workspace
10748                .right_dock()
10749                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
10750
10751            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10752
10753            panel
10754        });
10755
10756        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10757        // panel to the next valid position which, in this case, is the left
10758        // dock.
10759        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10760        workspace.update(cx, |workspace, cx| {
10761            assert!(workspace.left_dock().read(cx).is_open());
10762            assert_eq!(panel.read(cx).position, DockPosition::Left);
10763        });
10764
10765        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10766        // panel to the next valid position which, in this case, is the bottom
10767        // dock.
10768        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10769        workspace.update(cx, |workspace, cx| {
10770            assert!(workspace.bottom_dock().read(cx).is_open());
10771            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
10772        });
10773
10774        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
10775        // around moving the panel to its initial position, the right dock.
10776        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10777        workspace.update(cx, |workspace, cx| {
10778            assert!(workspace.right_dock().read(cx).is_open());
10779            assert_eq!(panel.read(cx).position, DockPosition::Right);
10780        });
10781
10782        // Remove focus from the panel, ensuring that, if the panel is not
10783        // focused, the `MoveFocusedPanelToNextPosition` action does not update
10784        // the panel's position, so the panel is still in the right dock.
10785        workspace.update_in(cx, |workspace, window, cx| {
10786            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10787        });
10788
10789        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10790        workspace.update(cx, |workspace, cx| {
10791            assert!(workspace.right_dock().read(cx).is_open());
10792            assert_eq!(panel.read(cx).position, DockPosition::Right);
10793        });
10794    }
10795
10796    #[gpui::test]
10797    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
10798        init_test(cx);
10799
10800        let fs = FakeFs::new(cx.executor());
10801        let project = Project::test(fs, [], cx).await;
10802        let (workspace, cx) =
10803            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10804
10805        let item_1 = cx.new(|cx| {
10806            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10807        });
10808        workspace.update_in(cx, |workspace, window, cx| {
10809            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10810            workspace.move_item_to_pane_in_direction(
10811                &MoveItemToPaneInDirection {
10812                    direction: SplitDirection::Right,
10813                    focus: true,
10814                    clone: false,
10815                },
10816                window,
10817                cx,
10818            );
10819            workspace.move_item_to_pane_at_index(
10820                &MoveItemToPane {
10821                    destination: 3,
10822                    focus: true,
10823                    clone: false,
10824                },
10825                window,
10826                cx,
10827            );
10828
10829            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
10830            assert_eq!(
10831                pane_items_paths(&workspace.active_pane, cx),
10832                vec!["first.txt".to_string()],
10833                "Single item was not moved anywhere"
10834            );
10835        });
10836
10837        let item_2 = cx.new(|cx| {
10838            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
10839        });
10840        workspace.update_in(cx, |workspace, window, cx| {
10841            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
10842            assert_eq!(
10843                pane_items_paths(&workspace.panes[0], cx),
10844                vec!["first.txt".to_string(), "second.txt".to_string()],
10845            );
10846            workspace.move_item_to_pane_in_direction(
10847                &MoveItemToPaneInDirection {
10848                    direction: SplitDirection::Right,
10849                    focus: true,
10850                    clone: false,
10851                },
10852                window,
10853                cx,
10854            );
10855
10856            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
10857            assert_eq!(
10858                pane_items_paths(&workspace.panes[0], cx),
10859                vec!["first.txt".to_string()],
10860                "After moving, one item should be left in the original pane"
10861            );
10862            assert_eq!(
10863                pane_items_paths(&workspace.panes[1], cx),
10864                vec!["second.txt".to_string()],
10865                "New item should have been moved to the new pane"
10866            );
10867        });
10868
10869        let item_3 = cx.new(|cx| {
10870            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
10871        });
10872        workspace.update_in(cx, |workspace, window, cx| {
10873            let original_pane = workspace.panes[0].clone();
10874            workspace.set_active_pane(&original_pane, window, cx);
10875            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
10876            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
10877            assert_eq!(
10878                pane_items_paths(&workspace.active_pane, cx),
10879                vec!["first.txt".to_string(), "third.txt".to_string()],
10880                "New pane should be ready to move one item out"
10881            );
10882
10883            workspace.move_item_to_pane_at_index(
10884                &MoveItemToPane {
10885                    destination: 3,
10886                    focus: true,
10887                    clone: false,
10888                },
10889                window,
10890                cx,
10891            );
10892            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
10893            assert_eq!(
10894                pane_items_paths(&workspace.active_pane, cx),
10895                vec!["first.txt".to_string()],
10896                "After moving, one item should be left in the original pane"
10897            );
10898            assert_eq!(
10899                pane_items_paths(&workspace.panes[1], cx),
10900                vec!["second.txt".to_string()],
10901                "Previously created pane should be unchanged"
10902            );
10903            assert_eq!(
10904                pane_items_paths(&workspace.panes[2], cx),
10905                vec!["third.txt".to_string()],
10906                "New item should have been moved to the new pane"
10907            );
10908        });
10909    }
10910
10911    #[gpui::test]
10912    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
10913        init_test(cx);
10914
10915        let fs = FakeFs::new(cx.executor());
10916        let project = Project::test(fs, [], cx).await;
10917        let (workspace, cx) =
10918            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10919
10920        let item_1 = cx.new(|cx| {
10921            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10922        });
10923        workspace.update_in(cx, |workspace, window, cx| {
10924            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10925            workspace.move_item_to_pane_in_direction(
10926                &MoveItemToPaneInDirection {
10927                    direction: SplitDirection::Right,
10928                    focus: true,
10929                    clone: true,
10930                },
10931                window,
10932                cx,
10933            );
10934            workspace.move_item_to_pane_at_index(
10935                &MoveItemToPane {
10936                    destination: 3,
10937                    focus: true,
10938                    clone: true,
10939                },
10940                window,
10941                cx,
10942            );
10943        });
10944        cx.run_until_parked();
10945
10946        workspace.update(cx, |workspace, cx| {
10947            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
10948            for pane in workspace.panes() {
10949                assert_eq!(
10950                    pane_items_paths(pane, cx),
10951                    vec!["first.txt".to_string()],
10952                    "Single item exists in all panes"
10953                );
10954            }
10955        });
10956
10957        // verify that the active pane has been updated after waiting for the
10958        // pane focus event to fire and resolve
10959        workspace.read_with(cx, |workspace, _app| {
10960            assert_eq!(
10961                workspace.active_pane(),
10962                &workspace.panes[2],
10963                "The third pane should be the active one: {:?}",
10964                workspace.panes
10965            );
10966        })
10967    }
10968
10969    mod register_project_item_tests {
10970
10971        use super::*;
10972
10973        // View
10974        struct TestPngItemView {
10975            focus_handle: FocusHandle,
10976        }
10977        // Model
10978        struct TestPngItem {}
10979
10980        impl project::ProjectItem for TestPngItem {
10981            fn try_open(
10982                _project: &Entity<Project>,
10983                path: &ProjectPath,
10984                cx: &mut App,
10985            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
10986                if path.path.extension().unwrap() == "png" {
10987                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
10988                } else {
10989                    None
10990                }
10991            }
10992
10993            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
10994                None
10995            }
10996
10997            fn project_path(&self, _: &App) -> Option<ProjectPath> {
10998                None
10999            }
11000
11001            fn is_dirty(&self) -> bool {
11002                false
11003            }
11004        }
11005
11006        impl Item for TestPngItemView {
11007            type Event = ();
11008            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11009                "".into()
11010            }
11011        }
11012        impl EventEmitter<()> for TestPngItemView {}
11013        impl Focusable for TestPngItemView {
11014            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11015                self.focus_handle.clone()
11016            }
11017        }
11018
11019        impl Render for TestPngItemView {
11020            fn render(
11021                &mut self,
11022                _window: &mut Window,
11023                _cx: &mut Context<Self>,
11024            ) -> impl IntoElement {
11025                Empty
11026            }
11027        }
11028
11029        impl ProjectItem for TestPngItemView {
11030            type Item = TestPngItem;
11031
11032            fn for_project_item(
11033                _project: Entity<Project>,
11034                _pane: Option<&Pane>,
11035                _item: Entity<Self::Item>,
11036                _: &mut Window,
11037                cx: &mut Context<Self>,
11038            ) -> Self
11039            where
11040                Self: Sized,
11041            {
11042                Self {
11043                    focus_handle: cx.focus_handle(),
11044                }
11045            }
11046        }
11047
11048        // View
11049        struct TestIpynbItemView {
11050            focus_handle: FocusHandle,
11051        }
11052        // Model
11053        struct TestIpynbItem {}
11054
11055        impl project::ProjectItem for TestIpynbItem {
11056            fn try_open(
11057                _project: &Entity<Project>,
11058                path: &ProjectPath,
11059                cx: &mut App,
11060            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11061                if path.path.extension().unwrap() == "ipynb" {
11062                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
11063                } else {
11064                    None
11065                }
11066            }
11067
11068            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11069                None
11070            }
11071
11072            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11073                None
11074            }
11075
11076            fn is_dirty(&self) -> bool {
11077                false
11078            }
11079        }
11080
11081        impl Item for TestIpynbItemView {
11082            type Event = ();
11083            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11084                "".into()
11085            }
11086        }
11087        impl EventEmitter<()> for TestIpynbItemView {}
11088        impl Focusable for TestIpynbItemView {
11089            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11090                self.focus_handle.clone()
11091            }
11092        }
11093
11094        impl Render for TestIpynbItemView {
11095            fn render(
11096                &mut self,
11097                _window: &mut Window,
11098                _cx: &mut Context<Self>,
11099            ) -> impl IntoElement {
11100                Empty
11101            }
11102        }
11103
11104        impl ProjectItem for TestIpynbItemView {
11105            type Item = TestIpynbItem;
11106
11107            fn for_project_item(
11108                _project: Entity<Project>,
11109                _pane: Option<&Pane>,
11110                _item: Entity<Self::Item>,
11111                _: &mut Window,
11112                cx: &mut Context<Self>,
11113            ) -> Self
11114            where
11115                Self: Sized,
11116            {
11117                Self {
11118                    focus_handle: cx.focus_handle(),
11119                }
11120            }
11121        }
11122
11123        struct TestAlternatePngItemView {
11124            focus_handle: FocusHandle,
11125        }
11126
11127        impl Item for TestAlternatePngItemView {
11128            type Event = ();
11129            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11130                "".into()
11131            }
11132        }
11133
11134        impl EventEmitter<()> for TestAlternatePngItemView {}
11135        impl Focusable for TestAlternatePngItemView {
11136            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11137                self.focus_handle.clone()
11138            }
11139        }
11140
11141        impl Render for TestAlternatePngItemView {
11142            fn render(
11143                &mut self,
11144                _window: &mut Window,
11145                _cx: &mut Context<Self>,
11146            ) -> impl IntoElement {
11147                Empty
11148            }
11149        }
11150
11151        impl ProjectItem for TestAlternatePngItemView {
11152            type Item = TestPngItem;
11153
11154            fn for_project_item(
11155                _project: Entity<Project>,
11156                _pane: Option<&Pane>,
11157                _item: Entity<Self::Item>,
11158                _: &mut Window,
11159                cx: &mut Context<Self>,
11160            ) -> Self
11161            where
11162                Self: Sized,
11163            {
11164                Self {
11165                    focus_handle: cx.focus_handle(),
11166                }
11167            }
11168        }
11169
11170        #[gpui::test]
11171        async fn test_register_project_item(cx: &mut TestAppContext) {
11172            init_test(cx);
11173
11174            cx.update(|cx| {
11175                register_project_item::<TestPngItemView>(cx);
11176                register_project_item::<TestIpynbItemView>(cx);
11177            });
11178
11179            let fs = FakeFs::new(cx.executor());
11180            fs.insert_tree(
11181                "/root1",
11182                json!({
11183                    "one.png": "BINARYDATAHERE",
11184                    "two.ipynb": "{ totally a notebook }",
11185                    "three.txt": "editing text, sure why not?"
11186                }),
11187            )
11188            .await;
11189
11190            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11191            let (workspace, cx) =
11192                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11193
11194            let worktree_id = project.update(cx, |project, cx| {
11195                project.worktrees(cx).next().unwrap().read(cx).id()
11196            });
11197
11198            let handle = workspace
11199                .update_in(cx, |workspace, window, cx| {
11200                    let project_path = (worktree_id, rel_path("one.png"));
11201                    workspace.open_path(project_path, None, true, window, cx)
11202                })
11203                .await
11204                .unwrap();
11205
11206            // Now we can check if the handle we got back errored or not
11207            assert_eq!(
11208                handle.to_any().entity_type(),
11209                TypeId::of::<TestPngItemView>()
11210            );
11211
11212            let handle = workspace
11213                .update_in(cx, |workspace, window, cx| {
11214                    let project_path = (worktree_id, rel_path("two.ipynb"));
11215                    workspace.open_path(project_path, None, true, window, cx)
11216                })
11217                .await
11218                .unwrap();
11219
11220            assert_eq!(
11221                handle.to_any().entity_type(),
11222                TypeId::of::<TestIpynbItemView>()
11223            );
11224
11225            let handle = workspace
11226                .update_in(cx, |workspace, window, cx| {
11227                    let project_path = (worktree_id, rel_path("three.txt"));
11228                    workspace.open_path(project_path, None, true, window, cx)
11229                })
11230                .await;
11231            assert!(handle.is_err());
11232        }
11233
11234        #[gpui::test]
11235        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
11236            init_test(cx);
11237
11238            cx.update(|cx| {
11239                register_project_item::<TestPngItemView>(cx);
11240                register_project_item::<TestAlternatePngItemView>(cx);
11241            });
11242
11243            let fs = FakeFs::new(cx.executor());
11244            fs.insert_tree(
11245                "/root1",
11246                json!({
11247                    "one.png": "BINARYDATAHERE",
11248                    "two.ipynb": "{ totally a notebook }",
11249                    "three.txt": "editing text, sure why not?"
11250                }),
11251            )
11252            .await;
11253            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11254            let (workspace, cx) =
11255                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11256            let worktree_id = project.update(cx, |project, cx| {
11257                project.worktrees(cx).next().unwrap().read(cx).id()
11258            });
11259
11260            let handle = workspace
11261                .update_in(cx, |workspace, window, cx| {
11262                    let project_path = (worktree_id, rel_path("one.png"));
11263                    workspace.open_path(project_path, None, true, window, cx)
11264                })
11265                .await
11266                .unwrap();
11267
11268            // This _must_ be the second item registered
11269            assert_eq!(
11270                handle.to_any().entity_type(),
11271                TypeId::of::<TestAlternatePngItemView>()
11272            );
11273
11274            let handle = workspace
11275                .update_in(cx, |workspace, window, cx| {
11276                    let project_path = (worktree_id, rel_path("three.txt"));
11277                    workspace.open_path(project_path, None, true, window, cx)
11278                })
11279                .await;
11280            assert!(handle.is_err());
11281        }
11282    }
11283
11284    #[gpui::test]
11285    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
11286        init_test(cx);
11287
11288        let fs = FakeFs::new(cx.executor());
11289        let project = Project::test(fs, [], cx).await;
11290        let (workspace, _cx) =
11291            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11292
11293        // Test with status bar shown (default)
11294        workspace.read_with(cx, |workspace, cx| {
11295            let visible = workspace.status_bar_visible(cx);
11296            assert!(visible, "Status bar should be visible by default");
11297        });
11298
11299        // Test with status bar hidden
11300        cx.update_global(|store: &mut SettingsStore, cx| {
11301            store.update_user_settings(cx, |settings| {
11302                settings.status_bar.get_or_insert_default().show = Some(false);
11303            });
11304        });
11305
11306        workspace.read_with(cx, |workspace, cx| {
11307            let visible = workspace.status_bar_visible(cx);
11308            assert!(!visible, "Status bar should be hidden when show is false");
11309        });
11310
11311        // Test with status bar shown explicitly
11312        cx.update_global(|store: &mut SettingsStore, cx| {
11313            store.update_user_settings(cx, |settings| {
11314                settings.status_bar.get_or_insert_default().show = Some(true);
11315            });
11316        });
11317
11318        workspace.read_with(cx, |workspace, cx| {
11319            let visible = workspace.status_bar_visible(cx);
11320            assert!(visible, "Status bar should be visible when show is true");
11321        });
11322    }
11323
11324    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
11325        pane.read(cx)
11326            .items()
11327            .flat_map(|item| {
11328                item.project_paths(cx)
11329                    .into_iter()
11330                    .map(|path| path.path.display(PathStyle::local()).into_owned())
11331            })
11332            .collect()
11333    }
11334
11335    pub fn init_test(cx: &mut TestAppContext) {
11336        cx.update(|cx| {
11337            let settings_store = SettingsStore::test(cx);
11338            cx.set_global(settings_store);
11339            theme::init(theme::LoadThemes::JustBase, cx);
11340            language::init(cx);
11341            crate::init_settings(cx);
11342            Project::init_settings(cx);
11343        });
11344    }
11345
11346    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
11347        let item = TestProjectItem::new(id, path, cx);
11348        item.update(cx, |item, _| {
11349            item.is_dirty = true;
11350        });
11351        item
11352    }
11353}