1use crate::{
2 item::{ClosePosition, Item, ItemHandle, ItemSettings, WeakItemHandle},
3 toolbar::Toolbar,
4 workspace_settings::{AutosaveSetting, WorkspaceSettings},
5 NewCenterTerminal, NewFile, NewSearch, SplitDirection, ToggleZoom, Workspace,
6};
7use anyhow::Result;
8use collections::{HashMap, HashSet, VecDeque};
9use gpui::{
10 actions, impl_actions, overlay, prelude::*, Action, AnchorCorner, AnyElement, AppContext,
11 AsyncWindowContext, DismissEvent, Div, DragMoveEvent, EntityId, EventEmitter, FocusHandle,
12 Focusable, FocusableView, Model, MouseButton, NavigationDirection, Pixels, Point, PromptLevel,
13 Render, ScrollHandle, Subscription, Task, View, ViewContext, VisualContext, WeakView,
14 WindowContext,
15};
16use parking_lot::Mutex;
17use project::{Project, ProjectEntryId, ProjectPath};
18use serde::Deserialize;
19use settings::Settings;
20use std::{
21 any::Any,
22 cmp, fmt, mem,
23 path::{Path, PathBuf},
24 rc::Rc,
25 sync::{
26 atomic::{AtomicUsize, Ordering},
27 Arc,
28 },
29};
30use theme::ThemeSettings;
31
32use ui::{
33 prelude::*, right_click_menu, ButtonSize, Color, Icon, IconButton, IconSize, Indicator, Label,
34 Tab, TabBar, TabPosition, Tooltip,
35};
36use ui::{v_stack, ContextMenu};
37use util::{maybe, truncate_and_remove_front, ResultExt};
38
39#[derive(PartialEq, Clone, Copy, Deserialize, Debug)]
40#[serde(rename_all = "camelCase")]
41pub enum SaveIntent {
42 /// write all files (even if unchanged)
43 /// prompt before overwriting on-disk changes
44 Save,
45 /// write any files that have local changes
46 /// prompt before overwriting on-disk changes
47 SaveAll,
48 /// always prompt for a new path
49 SaveAs,
50 /// prompt "you have unsaved changes" before writing
51 Close,
52 /// write all dirty files, don't prompt on conflict
53 Overwrite,
54 /// skip all save-related behavior
55 Skip,
56}
57
58#[derive(Clone, Deserialize, PartialEq, Debug)]
59pub struct ActivateItem(pub usize);
60
61// #[derive(Clone, PartialEq)]
62// pub struct CloseItemById {
63// pub item_id: usize,
64// pub pane: WeakView<Pane>,
65// }
66
67// #[derive(Clone, PartialEq)]
68// pub struct CloseItemsToTheLeftById {
69// pub item_id: usize,
70// pub pane: WeakView<Pane>,
71// }
72
73// #[derive(Clone, PartialEq)]
74// pub struct CloseItemsToTheRightById {
75// pub item_id: usize,
76// pub pane: WeakView<Pane>,
77// }
78
79#[derive(Clone, PartialEq, Debug, Deserialize, Default)]
80#[serde(rename_all = "camelCase")]
81pub struct CloseActiveItem {
82 pub save_intent: Option<SaveIntent>,
83}
84
85#[derive(Clone, PartialEq, Debug, Deserialize, Default)]
86#[serde(rename_all = "camelCase")]
87pub struct CloseAllItems {
88 pub save_intent: Option<SaveIntent>,
89}
90
91#[derive(Clone, PartialEq, Debug, Deserialize)]
92#[serde(rename_all = "camelCase")]
93pub struct RevealInProjectPanel {
94 pub entry_id: u64,
95}
96
97impl_actions!(
98 pane,
99 [
100 CloseAllItems,
101 CloseActiveItem,
102 ActivateItem,
103 RevealInProjectPanel
104 ]
105);
106
107actions!(
108 pane,
109 [
110 ActivatePrevItem,
111 ActivateNextItem,
112 ActivateLastItem,
113 CloseInactiveItems,
114 CloseCleanItems,
115 CloseItemsToTheLeft,
116 CloseItemsToTheRight,
117 GoBack,
118 GoForward,
119 ReopenClosedItem,
120 SplitLeft,
121 SplitUp,
122 SplitRight,
123 SplitDown,
124 ]
125);
126
127const MAX_NAVIGATION_HISTORY_LEN: usize = 1024;
128
129pub enum Event {
130 AddItem { item: Box<dyn ItemHandle> },
131 ActivateItem { local: bool },
132 Remove,
133 RemoveItem { item_id: EntityId },
134 Split(SplitDirection),
135 ChangeItemTitle,
136 Focus,
137 ZoomIn,
138 ZoomOut,
139}
140
141impl fmt::Debug for Event {
142 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
143 match self {
144 Event::AddItem { item } => f
145 .debug_struct("AddItem")
146 .field("item", &item.item_id())
147 .finish(),
148 Event::ActivateItem { local } => f
149 .debug_struct("ActivateItem")
150 .field("local", local)
151 .finish(),
152 Event::Remove => f.write_str("Remove"),
153 Event::RemoveItem { item_id } => f
154 .debug_struct("RemoveItem")
155 .field("item_id", item_id)
156 .finish(),
157 Event::Split(direction) => f
158 .debug_struct("Split")
159 .field("direction", direction)
160 .finish(),
161 Event::ChangeItemTitle => f.write_str("ChangeItemTitle"),
162 Event::Focus => f.write_str("Focus"),
163 Event::ZoomIn => f.write_str("ZoomIn"),
164 Event::ZoomOut => f.write_str("ZoomOut"),
165 }
166 }
167}
168
169pub struct Pane {
170 focus_handle: FocusHandle,
171 items: Vec<Box<dyn ItemHandle>>,
172 activation_history: Vec<EntityId>,
173 zoomed: bool,
174 was_focused: bool,
175 active_item_index: usize,
176 last_focused_view_by_item: HashMap<EntityId, FocusHandle>,
177 nav_history: NavHistory,
178 toolbar: View<Toolbar>,
179 new_item_menu: Option<View<ContextMenu>>,
180 split_item_menu: Option<View<ContextMenu>>,
181 // tab_context_menu: View<ContextMenu>,
182 workspace: WeakView<Workspace>,
183 project: Model<Project>,
184 drag_split_direction: Option<SplitDirection>,
185 can_drop_predicate: Option<Arc<dyn Fn(&dyn Any, &mut WindowContext) -> bool>>,
186 can_split: bool,
187 render_tab_bar_buttons: Rc<dyn Fn(&mut Pane, &mut ViewContext<Pane>) -> AnyElement>,
188 _subscriptions: Vec<Subscription>,
189 tab_bar_scroll_handle: ScrollHandle,
190}
191
192pub struct ItemNavHistory {
193 history: NavHistory,
194 item: Arc<dyn WeakItemHandle>,
195}
196
197#[derive(Clone)]
198pub struct NavHistory(Arc<Mutex<NavHistoryState>>);
199
200struct NavHistoryState {
201 mode: NavigationMode,
202 backward_stack: VecDeque<NavigationEntry>,
203 forward_stack: VecDeque<NavigationEntry>,
204 closed_stack: VecDeque<NavigationEntry>,
205 paths_by_item: HashMap<EntityId, (ProjectPath, Option<PathBuf>)>,
206 pane: WeakView<Pane>,
207 next_timestamp: Arc<AtomicUsize>,
208}
209
210#[derive(Copy, Clone)]
211pub enum NavigationMode {
212 Normal,
213 GoingBack,
214 GoingForward,
215 ClosingItem,
216 ReopeningClosedItem,
217 Disabled,
218}
219
220impl Default for NavigationMode {
221 fn default() -> Self {
222 Self::Normal
223 }
224}
225
226pub struct NavigationEntry {
227 pub item: Arc<dyn WeakItemHandle>,
228 pub data: Option<Box<dyn Any + Send>>,
229 pub timestamp: usize,
230}
231
232#[derive(Clone)]
233pub struct DraggedTab {
234 pub pane: View<Pane>,
235 pub ix: usize,
236 pub item_id: EntityId,
237 pub detail: usize,
238 pub is_active: bool,
239}
240
241// pub struct DraggedItem {
242// pub handle: Box<dyn ItemHandle>,
243// pub pane: WeakView<Pane>,
244// }
245
246// pub enum ReorderBehavior {
247// None,
248// MoveAfterActive,
249// MoveToIndex(usize),
250// }
251
252// #[derive(Debug, Clone, Copy, PartialEq, Eq)]
253// enum TabBarContextMenuKind {
254// New,
255// Split,
256// }
257
258// struct TabBarContextMenu {
259// kind: TabBarContextMenuKind,
260// handle: View<ContextMenu>,
261// }
262
263// impl TabBarContextMenu {
264// fn handle_if_kind(&self, kind: TabBarContextMenuKind) -> Option<View<ContextMenu>> {
265// if self.kind == kind {
266// return Some(self.handle.clone());
267// }
268// None
269// }
270// }
271
272// #[allow(clippy::too_many_arguments)]
273// fn nav_button<A: Action, F: 'static + Fn(&mut Pane, &mut ViewContext<Pane>)>(
274// svg_path: &'static str,
275// style: theme2::Interactive<theme2::IconButton>,
276// nav_button_height: f32,
277// tooltip_style: TooltipStyle,
278// enabled: bool,
279// on_click: F,
280// tooltip_action: A,
281// action_name: &str,
282// cx: &mut ViewContext<Pane>,
283// ) -> AnyElement<Pane> {
284// MouseEventHandler::new::<A, _>(0, cx, |state, _| {
285// let style = if enabled {
286// style.style_for(state)
287// } else {
288// style.disabled_style()
289// };
290// Svg::new(svg_path)
291// .with_color(style.color)
292// .constrained()
293// .with_width(style.icon_width)
294// .aligned()
295// .contained()
296// .with_style(style.container)
297// .constrained()
298// .with_width(style.button_width)
299// .with_height(nav_button_height)
300// .aligned()
301// .top()
302// })
303// .with_cursor_style(if enabled {
304// CursorStyle::PointingHand
305// } else {
306// CursorStyle::default()
307// })
308// .on_click(MouseButton::Left, move |_, toolbar, cx| {
309// on_click(toolbar, cx)
310// })
311// .with_tooltip::<A>(
312// 0,
313// action_name.to_string(),
314// Some(Box::new(tooltip_action)),
315// tooltip_style,
316// cx,
317// )
318// .contained()
319// .into_any_named("nav button")
320// }
321
322impl EventEmitter<Event> for Pane {}
323
324impl Pane {
325 pub fn new(
326 workspace: WeakView<Workspace>,
327 project: Model<Project>,
328 next_timestamp: Arc<AtomicUsize>,
329 can_drop_predicate: Option<Arc<dyn Fn(&dyn Any, &mut WindowContext) -> bool + 'static>>,
330 cx: &mut ViewContext<Self>,
331 ) -> Self {
332 // todo!("context menu")
333 // let pane_view_id = cx.view_id();
334 // let context_menu = cx.build_view(|cx| ContextMenu::new(pane_view_id, cx));
335 // context_menu.update(cx, |menu, _| {
336 // menu.set_position_mode(OverlayPositionMode::Local)
337 // });
338 //
339 let focus_handle = cx.focus_handle();
340
341 let subscriptions = vec![
342 cx.on_focus_in(&focus_handle, move |this, cx| this.focus_in(cx)),
343 cx.on_focus_out(&focus_handle, move |this, cx| this.focus_out(cx)),
344 ];
345
346 let handle = cx.view().downgrade();
347 Self {
348 focus_handle,
349 items: Vec::new(),
350 activation_history: Vec::new(),
351 was_focused: false,
352 zoomed: false,
353 active_item_index: 0,
354 last_focused_view_by_item: Default::default(),
355 nav_history: NavHistory(Arc::new(Mutex::new(NavHistoryState {
356 mode: NavigationMode::Normal,
357 backward_stack: Default::default(),
358 forward_stack: Default::default(),
359 closed_stack: Default::default(),
360 paths_by_item: Default::default(),
361 pane: handle.clone(),
362 next_timestamp,
363 }))),
364 toolbar: cx.build_view(|_| Toolbar::new()),
365 new_item_menu: None,
366 split_item_menu: None,
367 tab_bar_scroll_handle: ScrollHandle::new(),
368 drag_split_direction: None,
369 // tab_bar_context_menu: TabBarContextMenu {
370 // kind: TabBarContextMenuKind::New,
371 // handle: context_menu,
372 // },
373 // tab_context_menu: cx.build_view(|_| ContextMenu::new(pane_view_id, cx)),
374 workspace,
375 project,
376 can_drop_predicate,
377 can_split: true,
378 render_tab_bar_buttons: Rc::new(move |pane, cx| {
379 h_stack()
380 .gap_2()
381 .child(
382 IconButton::new("plus", Icon::Plus)
383 .icon_size(IconSize::Small)
384 .on_click(cx.listener(|pane, _, cx| {
385 let menu = ContextMenu::build(cx, |menu, _| {
386 menu.action("New File", NewFile.boxed_clone())
387 .action("New Terminal", NewCenterTerminal.boxed_clone())
388 .action("New Search", NewSearch.boxed_clone())
389 });
390 cx.subscribe(&menu, |pane, _, _: &DismissEvent, cx| {
391 pane.focus(cx);
392 pane.new_item_menu = None;
393 })
394 .detach();
395 pane.new_item_menu = Some(menu);
396 }))
397 .tooltip(|cx| Tooltip::text("New...", cx)),
398 )
399 .when_some(pane.new_item_menu.as_ref(), |el, new_item_menu| {
400 el.child(Self::render_menu_overlay(new_item_menu))
401 })
402 .child(
403 IconButton::new("split", Icon::Split)
404 .icon_size(IconSize::Small)
405 .on_click(cx.listener(|pane, _, cx| {
406 let menu = ContextMenu::build(cx, |menu, _| {
407 menu.action("Split Right", SplitRight.boxed_clone())
408 .action("Split Left", SplitLeft.boxed_clone())
409 .action("Split Up", SplitUp.boxed_clone())
410 .action("Split Down", SplitDown.boxed_clone())
411 });
412 cx.subscribe(&menu, |pane, _, _: &DismissEvent, cx| {
413 pane.focus(cx);
414 pane.split_item_menu = None;
415 })
416 .detach();
417 pane.split_item_menu = Some(menu);
418 }))
419 .tooltip(|cx| Tooltip::text("Split Pane", cx)),
420 )
421 .child({
422 let zoomed = pane.is_zoomed();
423 IconButton::new("toggle_zoom", Icon::Maximize)
424 .icon_size(IconSize::Small)
425 .selected(zoomed)
426 .selected_icon(Icon::Minimize)
427 .on_click(cx.listener(|pane, _, cx| {
428 pane.toggle_zoom(&crate::ToggleZoom, cx);
429 }))
430 .tooltip(move |cx| {
431 Tooltip::text(if zoomed { "Zoom Out" } else { "Zoom In" }, cx)
432 })
433 })
434 .when_some(pane.split_item_menu.as_ref(), |el, split_item_menu| {
435 el.child(Self::render_menu_overlay(split_item_menu))
436 })
437 .into_any_element()
438 }),
439 _subscriptions: subscriptions,
440 }
441 }
442
443 pub fn has_focus(&self, cx: &WindowContext) -> bool {
444 // todo!(); // inline this manually
445 self.focus_handle.contains_focused(cx)
446 }
447
448 fn focus_in(&mut self, cx: &mut ViewContext<Self>) {
449 if !self.was_focused {
450 self.was_focused = true;
451 cx.emit(Event::Focus);
452 cx.notify();
453 }
454
455 self.toolbar.update(cx, |toolbar, cx| {
456 toolbar.focus_changed(true, cx);
457 });
458
459 if let Some(active_item) = self.active_item() {
460 if self.focus_handle.is_focused(cx) {
461 // Pane was focused directly. We need to either focus a view inside the active item,
462 // or focus the active item itself
463 if let Some(weak_last_focused_view) =
464 self.last_focused_view_by_item.get(&active_item.item_id())
465 {
466 weak_last_focused_view.focus(cx);
467 return;
468 }
469
470 active_item.focus_handle(cx).focus(cx);
471 } else if let Some(focused) = cx.focused() {
472 if !self.context_menu_focused(cx) {
473 self.last_focused_view_by_item
474 .insert(active_item.item_id(), focused);
475 }
476 }
477 }
478 }
479
480 fn context_menu_focused(&self, cx: &mut ViewContext<Self>) -> bool {
481 self.new_item_menu
482 .as_ref()
483 .or(self.split_item_menu.as_ref())
484 .map_or(false, |menu| menu.focus_handle(cx).is_focused(cx))
485 }
486
487 fn focus_out(&mut self, cx: &mut ViewContext<Self>) {
488 self.was_focused = false;
489 self.toolbar.update(cx, |toolbar, cx| {
490 toolbar.focus_changed(false, cx);
491 });
492 cx.notify();
493 }
494
495 pub fn active_item_index(&self) -> usize {
496 self.active_item_index
497 }
498
499 // pub fn on_can_drop<F>(&mut self, can_drop: F)
500 // where
501 // F: 'static + Fn(&DragAndDrop<Workspace>, &WindowContext) -> bool,
502 // {
503 // self.can_drop = Rc::new(can_drop);
504 // }
505
506 pub fn set_can_split(&mut self, can_split: bool, cx: &mut ViewContext<Self>) {
507 self.can_split = can_split;
508 cx.notify();
509 }
510
511 pub fn set_can_navigate(&mut self, can_navigate: bool, cx: &mut ViewContext<Self>) {
512 self.toolbar.update(cx, |toolbar, cx| {
513 toolbar.set_can_navigate(can_navigate, cx);
514 });
515 cx.notify();
516 }
517
518 pub fn set_render_tab_bar_buttons<F>(&mut self, cx: &mut ViewContext<Self>, render: F)
519 where
520 F: 'static + Fn(&mut Pane, &mut ViewContext<Pane>) -> AnyElement,
521 {
522 self.render_tab_bar_buttons = Rc::new(render);
523 cx.notify();
524 }
525
526 pub fn nav_history_for_item<T: Item>(&self, item: &View<T>) -> ItemNavHistory {
527 ItemNavHistory {
528 history: self.nav_history.clone(),
529 item: Arc::new(item.downgrade()),
530 }
531 }
532
533 pub fn nav_history(&self) -> &NavHistory {
534 &self.nav_history
535 }
536
537 pub fn nav_history_mut(&mut self) -> &mut NavHistory {
538 &mut self.nav_history
539 }
540
541 pub fn disable_history(&mut self) {
542 self.nav_history.disable();
543 }
544
545 pub fn enable_history(&mut self) {
546 self.nav_history.enable();
547 }
548
549 pub fn can_navigate_backward(&self) -> bool {
550 !self.nav_history.0.lock().backward_stack.is_empty()
551 }
552
553 pub fn can_navigate_forward(&self) -> bool {
554 !self.nav_history.0.lock().forward_stack.is_empty()
555 }
556
557 fn navigate_backward(&mut self, cx: &mut ViewContext<Self>) {
558 if let Some(workspace) = self.workspace.upgrade() {
559 let pane = cx.view().downgrade();
560 cx.window_context().defer(move |cx| {
561 workspace.update(cx, |workspace, cx| {
562 workspace.go_back(pane, cx).detach_and_log_err(cx)
563 })
564 })
565 }
566 }
567
568 fn navigate_forward(&mut self, cx: &mut ViewContext<Self>) {
569 if let Some(workspace) = self.workspace.upgrade() {
570 let pane = cx.view().downgrade();
571 cx.window_context().defer(move |cx| {
572 workspace.update(cx, |workspace, cx| {
573 workspace.go_forward(pane, cx).detach_and_log_err(cx)
574 })
575 })
576 }
577 }
578
579 fn history_updated(&mut self, cx: &mut ViewContext<Self>) {
580 self.toolbar.update(cx, |_, cx| cx.notify());
581 }
582
583 pub(crate) fn open_item(
584 &mut self,
585 project_entry_id: Option<ProjectEntryId>,
586 focus_item: bool,
587 cx: &mut ViewContext<Self>,
588 build_item: impl FnOnce(&mut ViewContext<Pane>) -> Box<dyn ItemHandle>,
589 ) -> Box<dyn ItemHandle> {
590 let mut existing_item = None;
591 if let Some(project_entry_id) = project_entry_id {
592 for (index, item) in self.items.iter().enumerate() {
593 if item.is_singleton(cx)
594 && item.project_entry_ids(cx).as_slice() == [project_entry_id]
595 {
596 let item = item.boxed_clone();
597 existing_item = Some((index, item));
598 break;
599 }
600 }
601 }
602
603 if let Some((index, existing_item)) = existing_item {
604 self.activate_item(index, focus_item, focus_item, cx);
605 existing_item
606 } else {
607 let new_item = build_item(cx);
608 self.add_item(new_item.clone(), true, focus_item, None, cx);
609 new_item
610 }
611 }
612
613 pub fn add_item(
614 &mut self,
615 item: Box<dyn ItemHandle>,
616 activate_pane: bool,
617 focus_item: bool,
618 destination_index: Option<usize>,
619 cx: &mut ViewContext<Self>,
620 ) {
621 if item.is_singleton(cx) {
622 if let Some(&entry_id) = item.project_entry_ids(cx).get(0) {
623 let project = self.project.read(cx);
624 if let Some(project_path) = project.path_for_entry(entry_id, cx) {
625 let abs_path = project.absolute_path(&project_path, cx);
626 self.nav_history
627 .0
628 .lock()
629 .paths_by_item
630 .insert(item.item_id(), (project_path, abs_path));
631 }
632 }
633 }
634 // If no destination index is specified, add or move the item after the active item.
635 let mut insertion_index = {
636 cmp::min(
637 if let Some(destination_index) = destination_index {
638 destination_index
639 } else {
640 self.active_item_index + 1
641 },
642 self.items.len(),
643 )
644 };
645
646 // Does the item already exist?
647 let project_entry_id = if item.is_singleton(cx) {
648 item.project_entry_ids(cx).get(0).copied()
649 } else {
650 None
651 };
652
653 let existing_item_index = self.items.iter().position(|existing_item| {
654 if existing_item.item_id() == item.item_id() {
655 true
656 } else if existing_item.is_singleton(cx) {
657 existing_item
658 .project_entry_ids(cx)
659 .get(0)
660 .map_or(false, |existing_entry_id| {
661 Some(existing_entry_id) == project_entry_id.as_ref()
662 })
663 } else {
664 false
665 }
666 });
667
668 if let Some(existing_item_index) = existing_item_index {
669 // If the item already exists, move it to the desired destination and activate it
670
671 if existing_item_index != insertion_index {
672 let existing_item_is_active = existing_item_index == self.active_item_index;
673
674 // If the caller didn't specify a destination and the added item is already
675 // the active one, don't move it
676 if existing_item_is_active && destination_index.is_none() {
677 insertion_index = existing_item_index;
678 } else {
679 self.items.remove(existing_item_index);
680 if existing_item_index < self.active_item_index {
681 self.active_item_index -= 1;
682 }
683 insertion_index = insertion_index.min(self.items.len());
684
685 self.items.insert(insertion_index, item.clone());
686
687 if existing_item_is_active {
688 self.active_item_index = insertion_index;
689 } else if insertion_index <= self.active_item_index {
690 self.active_item_index += 1;
691 }
692 }
693
694 cx.notify();
695 }
696
697 self.activate_item(insertion_index, activate_pane, focus_item, cx);
698 } else {
699 self.items.insert(insertion_index, item.clone());
700 if insertion_index <= self.active_item_index {
701 self.active_item_index += 1;
702 }
703
704 self.activate_item(insertion_index, activate_pane, focus_item, cx);
705 cx.notify();
706 }
707
708 cx.emit(Event::AddItem { item });
709 }
710
711 pub fn items_len(&self) -> usize {
712 self.items.len()
713 }
714
715 pub fn items(&self) -> impl Iterator<Item = &Box<dyn ItemHandle>> + DoubleEndedIterator {
716 self.items.iter()
717 }
718
719 pub fn items_of_type<T: Render>(&self) -> impl '_ + Iterator<Item = View<T>> {
720 self.items
721 .iter()
722 .filter_map(|item| item.to_any().downcast().ok())
723 }
724
725 pub fn active_item(&self) -> Option<Box<dyn ItemHandle>> {
726 self.items.get(self.active_item_index).cloned()
727 }
728
729 pub fn pixel_position_of_cursor(&self, cx: &AppContext) -> Option<Point<Pixels>> {
730 self.items
731 .get(self.active_item_index)?
732 .pixel_position_of_cursor(cx)
733 }
734
735 pub fn item_for_entry(
736 &self,
737 entry_id: ProjectEntryId,
738 cx: &AppContext,
739 ) -> Option<Box<dyn ItemHandle>> {
740 self.items.iter().find_map(|item| {
741 if item.is_singleton(cx) && item.project_entry_ids(cx).as_slice() == [entry_id] {
742 Some(item.boxed_clone())
743 } else {
744 None
745 }
746 })
747 }
748
749 pub fn index_for_item(&self, item: &dyn ItemHandle) -> Option<usize> {
750 self.items
751 .iter()
752 .position(|i| i.item_id() == item.item_id())
753 }
754
755 pub fn item_for_index(&self, ix: usize) -> Option<&dyn ItemHandle> {
756 self.items.get(ix).map(|i| i.as_ref())
757 }
758
759 pub fn toggle_zoom(&mut self, _: &ToggleZoom, cx: &mut ViewContext<Self>) {
760 if self.zoomed {
761 cx.emit(Event::ZoomOut);
762 } else if !self.items.is_empty() {
763 if !self.focus_handle.contains_focused(cx) {
764 cx.focus_self();
765 }
766 cx.emit(Event::ZoomIn);
767 }
768 }
769
770 pub fn activate_item(
771 &mut self,
772 index: usize,
773 activate_pane: bool,
774 focus_item: bool,
775 cx: &mut ViewContext<Self>,
776 ) {
777 use NavigationMode::{GoingBack, GoingForward};
778
779 if index < self.items.len() {
780 let prev_active_item_ix = mem::replace(&mut self.active_item_index, index);
781 if prev_active_item_ix != self.active_item_index
782 || matches!(self.nav_history.mode(), GoingBack | GoingForward)
783 {
784 if let Some(prev_item) = self.items.get(prev_active_item_ix) {
785 prev_item.deactivated(cx);
786 }
787
788 cx.emit(Event::ActivateItem {
789 local: activate_pane,
790 });
791 }
792
793 if let Some(newly_active_item) = self.items.get(index) {
794 self.activation_history
795 .retain(|&previously_active_item_id| {
796 previously_active_item_id != newly_active_item.item_id()
797 });
798 self.activation_history.push(newly_active_item.item_id());
799 }
800
801 self.update_toolbar(cx);
802 self.update_status_bar(cx);
803
804 if focus_item {
805 self.focus_active_item(cx);
806 }
807
808 self.tab_bar_scroll_handle.scroll_to_item(index);
809 cx.notify();
810 }
811 }
812
813 pub fn activate_prev_item(&mut self, activate_pane: bool, cx: &mut ViewContext<Self>) {
814 let mut index = self.active_item_index;
815 if index > 0 {
816 index -= 1;
817 } else if !self.items.is_empty() {
818 index = self.items.len() - 1;
819 }
820 self.activate_item(index, activate_pane, activate_pane, cx);
821 }
822
823 pub fn activate_next_item(&mut self, activate_pane: bool, cx: &mut ViewContext<Self>) {
824 let mut index = self.active_item_index;
825 if index + 1 < self.items.len() {
826 index += 1;
827 } else {
828 index = 0;
829 }
830 self.activate_item(index, activate_pane, activate_pane, cx);
831 }
832
833 pub fn close_active_item(
834 &mut self,
835 action: &CloseActiveItem,
836 cx: &mut ViewContext<Self>,
837 ) -> Option<Task<Result<()>>> {
838 if self.items.is_empty() {
839 return None;
840 }
841 let active_item_id = self.items[self.active_item_index].item_id();
842 Some(self.close_item_by_id(
843 active_item_id,
844 action.save_intent.unwrap_or(SaveIntent::Close),
845 cx,
846 ))
847 }
848
849 pub fn close_item_by_id(
850 &mut self,
851 item_id_to_close: EntityId,
852 save_intent: SaveIntent,
853 cx: &mut ViewContext<Self>,
854 ) -> Task<Result<()>> {
855 self.close_items(cx, save_intent, move |view_id| view_id == item_id_to_close)
856 }
857
858 pub fn close_inactive_items(
859 &mut self,
860 _: &CloseInactiveItems,
861 cx: &mut ViewContext<Self>,
862 ) -> Option<Task<Result<()>>> {
863 if self.items.is_empty() {
864 return None;
865 }
866
867 let active_item_id = self.items[self.active_item_index].item_id();
868 Some(self.close_items(cx, SaveIntent::Close, move |item_id| {
869 item_id != active_item_id
870 }))
871 }
872
873 pub fn close_clean_items(
874 &mut self,
875 _: &CloseCleanItems,
876 cx: &mut ViewContext<Self>,
877 ) -> Option<Task<Result<()>>> {
878 let item_ids: Vec<_> = self
879 .items()
880 .filter(|item| !item.is_dirty(cx))
881 .map(|item| item.item_id())
882 .collect();
883 Some(self.close_items(cx, SaveIntent::Close, move |item_id| {
884 item_ids.contains(&item_id)
885 }))
886 }
887
888 pub fn close_items_to_the_left(
889 &mut self,
890 _: &CloseItemsToTheLeft,
891 cx: &mut ViewContext<Self>,
892 ) -> Option<Task<Result<()>>> {
893 if self.items.is_empty() {
894 return None;
895 }
896 let active_item_id = self.items[self.active_item_index].item_id();
897 Some(self.close_items_to_the_left_by_id(active_item_id, cx))
898 }
899
900 pub fn close_items_to_the_left_by_id(
901 &mut self,
902 item_id: EntityId,
903 cx: &mut ViewContext<Self>,
904 ) -> Task<Result<()>> {
905 let item_ids: Vec<_> = self
906 .items()
907 .take_while(|item| item.item_id() != item_id)
908 .map(|item| item.item_id())
909 .collect();
910 self.close_items(cx, SaveIntent::Close, move |item_id| {
911 item_ids.contains(&item_id)
912 })
913 }
914
915 pub fn close_items_to_the_right(
916 &mut self,
917 _: &CloseItemsToTheRight,
918 cx: &mut ViewContext<Self>,
919 ) -> Option<Task<Result<()>>> {
920 if self.items.is_empty() {
921 return None;
922 }
923 let active_item_id = self.items[self.active_item_index].item_id();
924 Some(self.close_items_to_the_right_by_id(active_item_id, cx))
925 }
926
927 pub fn close_items_to_the_right_by_id(
928 &mut self,
929 item_id: EntityId,
930 cx: &mut ViewContext<Self>,
931 ) -> Task<Result<()>> {
932 let item_ids: Vec<_> = self
933 .items()
934 .rev()
935 .take_while(|item| item.item_id() != item_id)
936 .map(|item| item.item_id())
937 .collect();
938 self.close_items(cx, SaveIntent::Close, move |item_id| {
939 item_ids.contains(&item_id)
940 })
941 }
942
943 pub fn close_all_items(
944 &mut self,
945 action: &CloseAllItems,
946 cx: &mut ViewContext<Self>,
947 ) -> Option<Task<Result<()>>> {
948 if self.items.is_empty() {
949 return None;
950 }
951
952 Some(
953 self.close_items(cx, action.save_intent.unwrap_or(SaveIntent::Close), |_| {
954 true
955 }),
956 )
957 }
958
959 pub(super) fn file_names_for_prompt(
960 items: &mut dyn Iterator<Item = &Box<dyn ItemHandle>>,
961 all_dirty_items: usize,
962 cx: &AppContext,
963 ) -> String {
964 /// Quantity of item paths displayed in prompt prior to cutoff..
965 const FILE_NAMES_CUTOFF_POINT: usize = 10;
966 let mut file_names: Vec<_> = items
967 .filter_map(|item| {
968 item.project_path(cx).and_then(|project_path| {
969 project_path
970 .path
971 .file_name()
972 .and_then(|name| name.to_str().map(ToOwned::to_owned))
973 })
974 })
975 .take(FILE_NAMES_CUTOFF_POINT)
976 .collect();
977 let should_display_followup_text =
978 all_dirty_items > FILE_NAMES_CUTOFF_POINT || file_names.len() != all_dirty_items;
979 if should_display_followup_text {
980 let not_shown_files = all_dirty_items - file_names.len();
981 if not_shown_files == 1 {
982 file_names.push(".. 1 file not shown".into());
983 } else {
984 file_names.push(format!(".. {} files not shown", not_shown_files).into());
985 }
986 }
987 let file_names = file_names.join("\n");
988 format!(
989 "Do you want to save changes to the following {} files?\n{file_names}",
990 all_dirty_items
991 )
992 }
993
994 pub fn close_items(
995 &mut self,
996 cx: &mut ViewContext<Pane>,
997 mut save_intent: SaveIntent,
998 should_close: impl Fn(EntityId) -> bool,
999 ) -> Task<Result<()>> {
1000 // Find the items to close.
1001 let mut items_to_close = Vec::new();
1002 let mut dirty_items = Vec::new();
1003 for item in &self.items {
1004 if should_close(item.item_id()) {
1005 items_to_close.push(item.boxed_clone());
1006 if item.is_dirty(cx) {
1007 dirty_items.push(item.boxed_clone());
1008 }
1009 }
1010 }
1011
1012 // If a buffer is open both in a singleton editor and in a multibuffer, make sure
1013 // to focus the singleton buffer when prompting to save that buffer, as opposed
1014 // to focusing the multibuffer, because this gives the user a more clear idea
1015 // of what content they would be saving.
1016 items_to_close.sort_by_key(|item| !item.is_singleton(cx));
1017
1018 let workspace = self.workspace.clone();
1019 cx.spawn(|pane, mut cx| async move {
1020 if save_intent == SaveIntent::Close && dirty_items.len() > 1 {
1021 let answer = pane.update(&mut cx, |_, cx| {
1022 let prompt =
1023 Self::file_names_for_prompt(&mut dirty_items.iter(), dirty_items.len(), cx);
1024 cx.prompt(
1025 PromptLevel::Warning,
1026 &prompt,
1027 &["Save all", "Discard all", "Cancel"],
1028 )
1029 })?;
1030 match answer.await {
1031 Ok(0) => save_intent = SaveIntent::SaveAll,
1032 Ok(1) => save_intent = SaveIntent::Skip,
1033 _ => {}
1034 }
1035 }
1036 let mut saved_project_items_ids = HashSet::default();
1037 for item in items_to_close.clone() {
1038 // Find the item's current index and its set of project item models. Avoid
1039 // storing these in advance, in case they have changed since this task
1040 // was started.
1041 let (item_ix, mut project_item_ids) = pane.update(&mut cx, |pane, cx| {
1042 (pane.index_for_item(&*item), item.project_item_model_ids(cx))
1043 })?;
1044 let item_ix = if let Some(ix) = item_ix {
1045 ix
1046 } else {
1047 continue;
1048 };
1049
1050 // Check if this view has any project items that are not open anywhere else
1051 // in the workspace, AND that the user has not already been prompted to save.
1052 // If there are any such project entries, prompt the user to save this item.
1053 let project = workspace.update(&mut cx, |workspace, cx| {
1054 for item in workspace.items(cx) {
1055 if !items_to_close
1056 .iter()
1057 .any(|item_to_close| item_to_close.item_id() == item.item_id())
1058 {
1059 let other_project_item_ids = item.project_item_model_ids(cx);
1060 project_item_ids.retain(|id| !other_project_item_ids.contains(id));
1061 }
1062 }
1063 workspace.project().clone()
1064 })?;
1065 let should_save = project_item_ids
1066 .iter()
1067 .any(|id| saved_project_items_ids.insert(*id));
1068
1069 if should_save
1070 && !Self::save_item(
1071 project.clone(),
1072 &pane,
1073 item_ix,
1074 &*item,
1075 save_intent,
1076 &mut cx,
1077 )
1078 .await?
1079 {
1080 break;
1081 }
1082
1083 // Remove the item from the pane.
1084 pane.update(&mut cx, |pane, cx| {
1085 if let Some(item_ix) = pane
1086 .items
1087 .iter()
1088 .position(|i| i.item_id() == item.item_id())
1089 {
1090 pane.remove_item(item_ix, false, cx);
1091 }
1092 })
1093 .ok();
1094 }
1095
1096 pane.update(&mut cx, |_, cx| cx.notify()).ok();
1097 Ok(())
1098 })
1099 }
1100
1101 pub fn remove_item(
1102 &mut self,
1103 item_index: usize,
1104 activate_pane: bool,
1105 cx: &mut ViewContext<Self>,
1106 ) {
1107 self.activation_history
1108 .retain(|&history_entry| history_entry != self.items[item_index].item_id());
1109
1110 if item_index == self.active_item_index {
1111 let index_to_activate = self
1112 .activation_history
1113 .pop()
1114 .and_then(|last_activated_item| {
1115 self.items.iter().enumerate().find_map(|(index, item)| {
1116 (item.item_id() == last_activated_item).then_some(index)
1117 })
1118 })
1119 // We didn't have a valid activation history entry, so fallback
1120 // to activating the item to the left
1121 .unwrap_or_else(|| item_index.min(self.items.len()).saturating_sub(1));
1122
1123 let should_activate = activate_pane || self.has_focus(cx);
1124 if self.items.len() == 1 && should_activate {
1125 self.focus_handle.focus(cx);
1126 } else {
1127 self.activate_item(index_to_activate, should_activate, should_activate, cx);
1128 }
1129 }
1130
1131 let item = self.items.remove(item_index);
1132
1133 cx.emit(Event::RemoveItem {
1134 item_id: item.item_id(),
1135 });
1136 if self.items.is_empty() {
1137 item.deactivated(cx);
1138 self.update_toolbar(cx);
1139 cx.emit(Event::Remove);
1140 }
1141
1142 if item_index < self.active_item_index {
1143 self.active_item_index -= 1;
1144 }
1145
1146 self.nav_history.set_mode(NavigationMode::ClosingItem);
1147 item.deactivated(cx);
1148 self.nav_history.set_mode(NavigationMode::Normal);
1149
1150 if let Some(path) = item.project_path(cx) {
1151 let abs_path = self
1152 .nav_history
1153 .0
1154 .lock()
1155 .paths_by_item
1156 .get(&item.item_id())
1157 .and_then(|(_, abs_path)| abs_path.clone());
1158
1159 self.nav_history
1160 .0
1161 .lock()
1162 .paths_by_item
1163 .insert(item.item_id(), (path, abs_path));
1164 } else {
1165 self.nav_history
1166 .0
1167 .lock()
1168 .paths_by_item
1169 .remove(&item.item_id());
1170 }
1171
1172 if self.items.is_empty() && self.zoomed {
1173 cx.emit(Event::ZoomOut);
1174 }
1175
1176 cx.notify();
1177 }
1178
1179 pub async fn save_item(
1180 project: Model<Project>,
1181 pane: &WeakView<Pane>,
1182 item_ix: usize,
1183 item: &dyn ItemHandle,
1184 save_intent: SaveIntent,
1185 cx: &mut AsyncWindowContext,
1186 ) -> Result<bool> {
1187 const CONFLICT_MESSAGE: &str =
1188 "This file has changed on disk since you started editing it. Do you want to overwrite it?";
1189
1190 if save_intent == SaveIntent::Skip {
1191 return Ok(true);
1192 }
1193
1194 let (mut has_conflict, mut is_dirty, mut can_save, can_save_as) = cx.update(|_, cx| {
1195 (
1196 item.has_conflict(cx),
1197 item.is_dirty(cx),
1198 item.can_save(cx),
1199 item.is_singleton(cx),
1200 )
1201 })?;
1202
1203 // when saving a single buffer, we ignore whether or not it's dirty.
1204 if save_intent == SaveIntent::Save {
1205 is_dirty = true;
1206 }
1207
1208 if save_intent == SaveIntent::SaveAs {
1209 is_dirty = true;
1210 has_conflict = false;
1211 can_save = false;
1212 }
1213
1214 if save_intent == SaveIntent::Overwrite {
1215 has_conflict = false;
1216 }
1217
1218 if has_conflict && can_save {
1219 let answer = pane.update(cx, |pane, cx| {
1220 pane.activate_item(item_ix, true, true, cx);
1221 cx.prompt(
1222 PromptLevel::Warning,
1223 CONFLICT_MESSAGE,
1224 &["Overwrite", "Discard", "Cancel"],
1225 )
1226 })?;
1227 match answer.await {
1228 Ok(0) => pane.update(cx, |_, cx| item.save(project, cx))?.await?,
1229 Ok(1) => pane.update(cx, |_, cx| item.reload(project, cx))?.await?,
1230 _ => return Ok(false),
1231 }
1232 } else if is_dirty && (can_save || can_save_as) {
1233 if save_intent == SaveIntent::Close {
1234 let will_autosave = cx.update(|_, cx| {
1235 matches!(
1236 WorkspaceSettings::get_global(cx).autosave,
1237 AutosaveSetting::OnFocusChange | AutosaveSetting::OnWindowChange
1238 ) && Self::can_autosave_item(&*item, cx)
1239 })?;
1240 if !will_autosave {
1241 let answer = pane.update(cx, |pane, cx| {
1242 pane.activate_item(item_ix, true, true, cx);
1243 let prompt = dirty_message_for(item.project_path(cx));
1244 cx.prompt(
1245 PromptLevel::Warning,
1246 &prompt,
1247 &["Save", "Don't Save", "Cancel"],
1248 )
1249 })?;
1250 match answer.await {
1251 Ok(0) => {}
1252 Ok(1) => return Ok(true), // Don't save this file
1253 _ => return Ok(false), // Cancel
1254 }
1255 }
1256 }
1257
1258 if can_save {
1259 pane.update(cx, |_, cx| item.save(project, cx))?.await?;
1260 } else if can_save_as {
1261 let start_abs_path = project
1262 .update(cx, |project, cx| {
1263 let worktree = project.visible_worktrees(cx).next()?;
1264 Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
1265 })?
1266 .unwrap_or_else(|| Path::new("").into());
1267
1268 let abs_path = cx.update(|_, cx| cx.prompt_for_new_path(&start_abs_path))?;
1269 if let Some(abs_path) = abs_path.await.ok().flatten() {
1270 pane.update(cx, |_, cx| item.save_as(project, abs_path, cx))?
1271 .await?;
1272 } else {
1273 return Ok(false);
1274 }
1275 }
1276 }
1277 Ok(true)
1278 }
1279
1280 fn can_autosave_item(item: &dyn ItemHandle, cx: &AppContext) -> bool {
1281 let is_deleted = item.project_entry_ids(cx).is_empty();
1282 item.is_dirty(cx) && !item.has_conflict(cx) && item.can_save(cx) && !is_deleted
1283 }
1284
1285 pub fn autosave_item(
1286 item: &dyn ItemHandle,
1287 project: Model<Project>,
1288 cx: &mut WindowContext,
1289 ) -> Task<Result<()>> {
1290 if Self::can_autosave_item(item, cx) {
1291 item.save(project, cx)
1292 } else {
1293 Task::ready(Ok(()))
1294 }
1295 }
1296
1297 pub fn focus(&mut self, cx: &mut ViewContext<Pane>) {
1298 cx.focus(&self.focus_handle);
1299 }
1300
1301 pub fn focus_active_item(&mut self, cx: &mut ViewContext<Self>) {
1302 if let Some(active_item) = self.active_item() {
1303 let focus_handle = active_item.focus_handle(cx);
1304 cx.focus(&focus_handle);
1305 }
1306 }
1307
1308 pub fn split(&mut self, direction: SplitDirection, cx: &mut ViewContext<Self>) {
1309 cx.emit(Event::Split(direction));
1310 }
1311
1312 // fn deploy_split_menu(&mut self, cx: &mut ViewContext<Self>) {
1313 // self.tab_bar_context_menu.handle.update(cx, |menu, cx| {
1314 // menu.toggle(
1315 // Default::default(),
1316 // AnchorCorner::TopRight,
1317 // vec![
1318 // ContextMenuItem::action("Split Right", SplitRight),
1319 // ContextMenuItem::action("Split Left", SplitLeft),
1320 // ContextMenuItem::action("Split Up", SplitUp),
1321 // ContextMenuItem::action("Split Down", SplitDown),
1322 // ],
1323 // cx,
1324 // );
1325 // });
1326
1327 // self.tab_bar_context_menu.kind = TabBarContextMenuKind::Split;
1328 // }
1329
1330 // fn deploy_new_menu(&mut self, cx: &mut ViewContext<Self>) {
1331 // self.tab_bar_context_menu.handle.update(cx, |menu, cx| {
1332 // menu.toggle(
1333 // Default::default(),
1334 // AnchorCorner::TopRight,
1335 // vec![
1336 // ContextMenuItem::action("New File", NewFile),
1337 // ContextMenuItem::action("New Terminal", NewCenterTerminal),
1338 // ContextMenuItem::action("New Search", NewSearch),
1339 // ],
1340 // cx,
1341 // );
1342 // });
1343
1344 // self.tab_bar_context_menu.kind = TabBarContextMenuKind::New;
1345 // }
1346
1347 // fn deploy_tab_context_menu(
1348 // &mut self,
1349 // position: Vector2F,
1350 // target_item_id: usize,
1351 // cx: &mut ViewContext<Self>,
1352 // ) {
1353 // let active_item_id = self.items[self.active_item_index].id();
1354 // let is_active_item = target_item_id == active_item_id;
1355 // let target_pane = cx.weak_handle();
1356
1357 // // The `CloseInactiveItems` action should really be called "CloseOthers" and the behaviour should be dynamically based on the tab the action is ran on. Currently, this is a weird action because you can run it on a non-active tab and it will close everything by the actual active tab
1358
1359 // self.tab_context_menu.update(cx, |menu, cx| {
1360 // menu.show(
1361 // position,
1362 // AnchorCorner::TopLeft,
1363 // if is_active_item {
1364 // vec![
1365 // ContextMenuItem::action(
1366 // "Close Active Item",
1367 // CloseActiveItem { save_intent: None },
1368 // ),
1369 // ContextMenuItem::action("Close Inactive Items", CloseInactiveItems),
1370 // ContextMenuItem::action("Close Clean Items", CloseCleanItems),
1371 // ContextMenuItem::action("Close Items To The Left", CloseItemsToTheLeft),
1372 // ContextMenuItem::action("Close Items To The Right", CloseItemsToTheRight),
1373 // ContextMenuItem::action(
1374 // "Close All Items",
1375 // CloseAllItems { save_intent: None },
1376 // ),
1377 // ]
1378 // } else {
1379 // // In the case of the user right clicking on a non-active tab, for some item-closing commands, we need to provide the id of the tab, for the others, we can reuse the existing command.
1380 // vec![
1381 // ContextMenuItem::handler("Close Inactive Item", {
1382 // let pane = target_pane.clone();
1383 // move |cx| {
1384 // if let Some(pane) = pane.upgrade(cx) {
1385 // pane.update(cx, |pane, cx| {
1386 // pane.close_item_by_id(
1387 // target_item_id,
1388 // SaveIntent::Close,
1389 // cx,
1390 // )
1391 // .detach_and_log_err(cx);
1392 // })
1393 // }
1394 // }
1395 // }),
1396 // ContextMenuItem::action("Close Inactive Items", CloseInactiveItems),
1397 // ContextMenuItem::action("Close Clean Items", CloseCleanItems),
1398 // ContextMenuItem::handler("Close Items To The Left", {
1399 // let pane = target_pane.clone();
1400 // move |cx| {
1401 // if let Some(pane) = pane.upgrade(cx) {
1402 // pane.update(cx, |pane, cx| {
1403 // pane.close_items_to_the_left_by_id(target_item_id, cx)
1404 // .detach_and_log_err(cx);
1405 // })
1406 // }
1407 // }
1408 // }),
1409 // ContextMenuItem::handler("Close Items To The Right", {
1410 // let pane = target_pane.clone();
1411 // move |cx| {
1412 // if let Some(pane) = pane.upgrade(cx) {
1413 // pane.update(cx, |pane, cx| {
1414 // pane.close_items_to_the_right_by_id(target_item_id, cx)
1415 // .detach_and_log_err(cx);
1416 // })
1417 // }
1418 // }
1419 // }),
1420 // ContextMenuItem::action(
1421 // "Close All Items",
1422 // CloseAllItems { save_intent: None },
1423 // ),
1424 // ]
1425 // },
1426 // cx,
1427 // );
1428 // });
1429 // }
1430
1431 pub fn toolbar(&self) -> &View<Toolbar> {
1432 &self.toolbar
1433 }
1434
1435 pub fn handle_deleted_project_item(
1436 &mut self,
1437 entry_id: ProjectEntryId,
1438 cx: &mut ViewContext<Pane>,
1439 ) -> Option<()> {
1440 let (item_index_to_delete, item_id) = self.items().enumerate().find_map(|(i, item)| {
1441 if item.is_singleton(cx) && item.project_entry_ids(cx).as_slice() == [entry_id] {
1442 Some((i, item.item_id()))
1443 } else {
1444 None
1445 }
1446 })?;
1447
1448 self.remove_item(item_index_to_delete, false, cx);
1449 self.nav_history.remove_item(item_id);
1450
1451 Some(())
1452 }
1453
1454 fn update_toolbar(&mut self, cx: &mut ViewContext<Self>) {
1455 let active_item = self
1456 .items
1457 .get(self.active_item_index)
1458 .map(|item| item.as_ref());
1459 self.toolbar.update(cx, |toolbar, cx| {
1460 toolbar.set_active_item(active_item, cx);
1461 });
1462 }
1463
1464 fn update_status_bar(&mut self, cx: &mut ViewContext<Self>) {
1465 let workspace = self.workspace.clone();
1466 let pane = cx.view().clone();
1467
1468 cx.window_context().defer(move |cx| {
1469 let Ok(status_bar) = workspace.update(cx, |workspace, _| workspace.status_bar.clone())
1470 else {
1471 return;
1472 };
1473
1474 status_bar.update(cx, move |status_bar, cx| {
1475 status_bar.set_active_pane(&pane, cx);
1476 });
1477 });
1478 }
1479
1480 fn render_tab(
1481 &self,
1482 ix: usize,
1483 item: &Box<dyn ItemHandle>,
1484 detail: usize,
1485 cx: &mut ViewContext<'_, Pane>,
1486 ) -> impl IntoElement {
1487 let is_active = ix == self.active_item_index;
1488
1489 let label = item.tab_content(Some(detail), is_active, cx);
1490 let close_side = &ItemSettings::get_global(cx).close_position;
1491
1492 let indicator = maybe!({
1493 let indicator_color = match (item.has_conflict(cx), item.is_dirty(cx)) {
1494 (true, _) => Color::Warning,
1495 (_, true) => Color::Accent,
1496 (false, false) => return None,
1497 };
1498
1499 Some(Indicator::dot().color(indicator_color))
1500 });
1501
1502 let item_id = item.item_id();
1503 let is_first_item = ix == 0;
1504 let is_last_item = ix == self.items.len() - 1;
1505 let position_relative_to_active_item = ix.cmp(&self.active_item_index);
1506
1507 let tab = Tab::new(ix)
1508 .position(if is_first_item {
1509 TabPosition::First
1510 } else if is_last_item {
1511 TabPosition::Last
1512 } else {
1513 TabPosition::Middle(position_relative_to_active_item)
1514 })
1515 .close_side(match close_side {
1516 ClosePosition::Left => ui::TabCloseSide::Start,
1517 ClosePosition::Right => ui::TabCloseSide::End,
1518 })
1519 .selected(is_active)
1520 .on_click(
1521 cx.listener(move |pane: &mut Self, _, cx| pane.activate_item(ix, true, true, cx)),
1522 )
1523 // TODO: This should be a click listener with the middle mouse button instead of a mouse down listener.
1524 .on_mouse_down(
1525 MouseButton::Middle,
1526 cx.listener(move |pane, _event, cx| {
1527 pane.close_item_by_id(item_id, SaveIntent::Close, cx)
1528 .detach_and_log_err(cx);
1529 }),
1530 )
1531 .on_drag(
1532 DraggedTab {
1533 pane: cx.view().clone(),
1534 detail,
1535 item_id,
1536 is_active,
1537 ix,
1538 },
1539 |tab, cx| cx.build_view(|_| tab.clone()),
1540 )
1541 .drag_over::<DraggedTab>(|tab| tab.bg(cx.theme().colors().drop_target_background))
1542 .drag_over::<ProjectEntryId>(|tab| tab.bg(cx.theme().colors().drop_target_background))
1543 .when_some(self.can_drop_predicate.clone(), |this, p| {
1544 this.can_drop(move |a, cx| p(a, cx))
1545 })
1546 .on_drop(cx.listener(move |this, dragged_tab: &DraggedTab, cx| {
1547 this.drag_split_direction = None;
1548 this.handle_tab_drop(dragged_tab, ix, cx)
1549 }))
1550 .on_drop(cx.listener(move |this, entry_id: &ProjectEntryId, cx| {
1551 this.drag_split_direction = None;
1552 this.handle_project_entry_drop(entry_id, cx)
1553 }))
1554 .when_some(item.tab_tooltip_text(cx), |tab, text| {
1555 tab.tooltip(move |cx| Tooltip::text(text.clone(), cx))
1556 })
1557 .start_slot::<Indicator>(indicator)
1558 .end_slot(
1559 IconButton::new("close tab", Icon::Close)
1560 .icon_color(Color::Muted)
1561 .size(ButtonSize::None)
1562 .icon_size(IconSize::XSmall)
1563 .on_click(cx.listener(move |pane, _, cx| {
1564 pane.close_item_by_id(item_id, SaveIntent::Close, cx)
1565 .detach_and_log_err(cx);
1566 })),
1567 )
1568 .child(label);
1569
1570 let single_entry_to_resolve = {
1571 let item_entries = self.items[ix].project_entry_ids(cx);
1572 if item_entries.len() == 1 {
1573 Some(item_entries[0])
1574 } else {
1575 None
1576 }
1577 };
1578
1579 let pane = cx.view().downgrade();
1580 right_click_menu(ix).trigger(tab).menu(move |cx| {
1581 let pane = pane.clone();
1582 ContextMenu::build(cx, move |mut menu, cx| {
1583 if let Some(pane) = pane.upgrade() {
1584 menu = menu
1585 .entry(
1586 "Close",
1587 Some(Box::new(CloseActiveItem { save_intent: None })),
1588 cx.handler_for(&pane, move |pane, cx| {
1589 pane.close_item_by_id(item_id, SaveIntent::Close, cx)
1590 .detach_and_log_err(cx);
1591 }),
1592 )
1593 .entry(
1594 "Close Others",
1595 Some(Box::new(CloseInactiveItems)),
1596 cx.handler_for(&pane, move |pane, cx| {
1597 pane.close_items(cx, SaveIntent::Close, |id| id != item_id)
1598 .detach_and_log_err(cx);
1599 }),
1600 )
1601 .separator()
1602 .entry(
1603 "Close Left",
1604 Some(Box::new(CloseItemsToTheLeft)),
1605 cx.handler_for(&pane, move |pane, cx| {
1606 pane.close_items_to_the_left_by_id(item_id, cx)
1607 .detach_and_log_err(cx);
1608 }),
1609 )
1610 .entry(
1611 "Close Right",
1612 Some(Box::new(CloseItemsToTheRight)),
1613 cx.handler_for(&pane, move |pane, cx| {
1614 pane.close_items_to_the_right_by_id(item_id, cx)
1615 .detach_and_log_err(cx);
1616 }),
1617 )
1618 .separator()
1619 .entry(
1620 "Close Clean",
1621 Some(Box::new(CloseCleanItems)),
1622 cx.handler_for(&pane, move |pane, cx| {
1623 pane.close_clean_items(&CloseCleanItems, cx)
1624 .map(|task| task.detach_and_log_err(cx));
1625 }),
1626 )
1627 .entry(
1628 "Close All",
1629 Some(Box::new(CloseAllItems { save_intent: None })),
1630 cx.handler_for(&pane, |pane, cx| {
1631 pane.close_all_items(&CloseAllItems { save_intent: None }, cx)
1632 .map(|task| task.detach_and_log_err(cx));
1633 }),
1634 );
1635
1636 if let Some(entry) = single_entry_to_resolve {
1637 let entry_id = entry.to_proto();
1638 menu = menu.separator().entry(
1639 "Reveal In Project Panel",
1640 Some(Box::new(RevealInProjectPanel { entry_id })),
1641 cx.handler_for(&pane, move |pane, cx| {
1642 pane.project.update(cx, |_, cx| {
1643 cx.emit(project::Event::RevealInProjectPanel(
1644 ProjectEntryId::from_proto(entry_id),
1645 ))
1646 });
1647 }),
1648 );
1649 }
1650 }
1651
1652 menu
1653 })
1654 })
1655 }
1656
1657 fn render_tab_bar(&mut self, cx: &mut ViewContext<'_, Pane>) -> impl IntoElement {
1658 TabBar::new("tab_bar")
1659 .track_scroll(self.tab_bar_scroll_handle.clone())
1660 .start_child(
1661 h_stack()
1662 .gap_2()
1663 .child(
1664 IconButton::new("navigate_backward", Icon::ArrowLeft)
1665 .icon_size(IconSize::Small)
1666 .on_click({
1667 let view = cx.view().clone();
1668 move |_, cx| view.update(cx, Self::navigate_backward)
1669 })
1670 .disabled(!self.can_navigate_backward())
1671 .tooltip(|cx| Tooltip::for_action("Go Back", &GoBack, cx)),
1672 )
1673 .child(
1674 IconButton::new("navigate_forward", Icon::ArrowRight)
1675 .icon_size(IconSize::Small)
1676 .on_click({
1677 let view = cx.view().clone();
1678 move |_, cx| view.update(cx, Self::navigate_backward)
1679 })
1680 .disabled(!self.can_navigate_forward())
1681 .tooltip(|cx| Tooltip::for_action("Go Forward", &GoForward, cx)),
1682 ),
1683 )
1684 .end_child({
1685 let render_tab_buttons = self.render_tab_bar_buttons.clone();
1686 render_tab_buttons(self, cx)
1687 })
1688 .children(
1689 self.items
1690 .iter()
1691 .enumerate()
1692 .zip(self.tab_details(cx))
1693 .map(|((ix, item), detail)| self.render_tab(ix, item, detail, cx)),
1694 )
1695 .child(
1696 div()
1697 .min_w_6()
1698 // HACK: This empty child is currently necessary to force the drop traget to appear
1699 // despite us setting a min width above.
1700 .child("")
1701 .h_full()
1702 .flex_grow()
1703 .drag_over::<DraggedTab>(|bar| {
1704 bar.bg(cx.theme().colors().drop_target_background)
1705 })
1706 .drag_over::<ProjectEntryId>(|bar| {
1707 bar.bg(cx.theme().colors().drop_target_background)
1708 })
1709 .on_drop(cx.listener(move |this, dragged_tab: &DraggedTab, cx| {
1710 this.drag_split_direction = None;
1711 this.handle_tab_drop(dragged_tab, this.items.len(), cx)
1712 }))
1713 .on_drop(cx.listener(move |this, entry_id: &ProjectEntryId, cx| {
1714 this.drag_split_direction = None;
1715 this.handle_project_entry_drop(entry_id, cx)
1716 })),
1717 )
1718 }
1719
1720 fn render_menu_overlay(menu: &View<ContextMenu>) -> Div {
1721 div()
1722 .absolute()
1723 .z_index(1)
1724 .bottom_0()
1725 .right_0()
1726 .size_0()
1727 .child(overlay().anchor(AnchorCorner::TopRight).child(menu.clone()))
1728 }
1729
1730 fn tab_details(&self, cx: &AppContext) -> Vec<usize> {
1731 let mut tab_details = self.items.iter().map(|_| 0).collect::<Vec<_>>();
1732
1733 let mut tab_descriptions = HashMap::default();
1734 let mut done = false;
1735 while !done {
1736 done = true;
1737
1738 // Store item indices by their tab description.
1739 for (ix, (item, detail)) in self.items.iter().zip(&tab_details).enumerate() {
1740 if let Some(description) = item.tab_description(*detail, cx) {
1741 if *detail == 0
1742 || Some(&description) != item.tab_description(detail - 1, cx).as_ref()
1743 {
1744 tab_descriptions
1745 .entry(description)
1746 .or_insert(Vec::new())
1747 .push(ix);
1748 }
1749 }
1750 }
1751
1752 // If two or more items have the same tab description, increase eir level
1753 // of detail and try again.
1754 for (_, item_ixs) in tab_descriptions.drain() {
1755 if item_ixs.len() > 1 {
1756 done = false;
1757 for ix in item_ixs {
1758 tab_details[ix] += 1;
1759 }
1760 }
1761 }
1762 }
1763
1764 tab_details
1765 }
1766
1767 pub fn set_zoomed(&mut self, zoomed: bool, cx: &mut ViewContext<Self>) {
1768 self.zoomed = zoomed;
1769 cx.notify();
1770 }
1771
1772 pub fn is_zoomed(&self) -> bool {
1773 self.zoomed
1774 }
1775
1776 fn handle_drag_move<T>(&mut self, event: &DragMoveEvent<T>, cx: &mut ViewContext<Self>) {
1777 if !self.can_split {
1778 return;
1779 }
1780
1781 let edge_width = cx.rem_size() * 8;
1782 let cursor = event.event.position;
1783 let direction = if cursor.x < event.bounds.left() + edge_width {
1784 Some(SplitDirection::Left)
1785 } else if cursor.x > event.bounds.right() - edge_width {
1786 Some(SplitDirection::Right)
1787 } else if cursor.y < event.bounds.top() + edge_width {
1788 Some(SplitDirection::Up)
1789 } else if cursor.y > event.bounds.bottom() - edge_width {
1790 Some(SplitDirection::Down)
1791 } else {
1792 None
1793 };
1794
1795 if direction != self.drag_split_direction {
1796 self.drag_split_direction = direction;
1797 }
1798 }
1799
1800 fn handle_tab_drop(
1801 &mut self,
1802 dragged_tab: &DraggedTab,
1803 ix: usize,
1804 cx: &mut ViewContext<'_, Pane>,
1805 ) {
1806 let mut to_pane = cx.view().clone();
1807 let split_direction = self.drag_split_direction;
1808 let item_id = dragged_tab.item_id;
1809 let from_pane = dragged_tab.pane.clone();
1810 self.workspace
1811 .update(cx, |_, cx| {
1812 cx.defer(move |workspace, cx| {
1813 if let Some(split_direction) = split_direction {
1814 to_pane = workspace.split_pane(to_pane, split_direction, cx);
1815 }
1816 workspace.move_item(from_pane, to_pane, item_id, ix, cx);
1817 });
1818 })
1819 .log_err();
1820 }
1821
1822 fn handle_project_entry_drop(
1823 &mut self,
1824 project_entry_id: &ProjectEntryId,
1825 cx: &mut ViewContext<'_, Pane>,
1826 ) {
1827 let mut to_pane = cx.view().clone();
1828 let split_direction = self.drag_split_direction;
1829 let project_entry_id = *project_entry_id;
1830 self.workspace
1831 .update(cx, |_, cx| {
1832 cx.defer(move |workspace, cx| {
1833 if let Some(path) = workspace
1834 .project()
1835 .read(cx)
1836 .path_for_entry(project_entry_id, cx)
1837 {
1838 if let Some(split_direction) = split_direction {
1839 to_pane = workspace.split_pane(to_pane, split_direction, cx);
1840 }
1841 workspace
1842 .open_path(path, Some(to_pane.downgrade()), true, cx)
1843 .detach_and_log_err(cx);
1844 }
1845 });
1846 })
1847 .log_err();
1848 }
1849}
1850
1851impl FocusableView for Pane {
1852 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
1853 self.focus_handle.clone()
1854 }
1855}
1856
1857impl Render for Pane {
1858 type Element = Focusable<Div>;
1859
1860 fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
1861 v_stack()
1862 .key_context("Pane")
1863 .track_focus(&self.focus_handle)
1864 .size_full()
1865 .flex_none()
1866 .overflow_hidden()
1867 .on_action(cx.listener(|pane, _: &SplitLeft, cx| pane.split(SplitDirection::Left, cx)))
1868 .on_action(cx.listener(|pane, _: &SplitUp, cx| pane.split(SplitDirection::Up, cx)))
1869 .on_action(
1870 cx.listener(|pane, _: &SplitRight, cx| pane.split(SplitDirection::Right, cx)),
1871 )
1872 .on_action(cx.listener(|pane, _: &SplitDown, cx| pane.split(SplitDirection::Down, cx)))
1873 .on_action(cx.listener(|pane, _: &GoBack, cx| pane.navigate_backward(cx)))
1874 .on_action(cx.listener(|pane, _: &GoForward, cx| pane.navigate_forward(cx)))
1875 .on_action(cx.listener(Pane::toggle_zoom))
1876 .on_action(cx.listener(|pane: &mut Pane, action: &ActivateItem, cx| {
1877 pane.activate_item(action.0, true, true, cx);
1878 }))
1879 .on_action(cx.listener(|pane: &mut Pane, _: &ActivateLastItem, cx| {
1880 pane.activate_item(pane.items.len() - 1, true, true, cx);
1881 }))
1882 .on_action(cx.listener(|pane: &mut Pane, _: &ActivatePrevItem, cx| {
1883 pane.activate_prev_item(true, cx);
1884 }))
1885 .on_action(cx.listener(|pane: &mut Pane, _: &ActivateNextItem, cx| {
1886 pane.activate_next_item(true, cx);
1887 }))
1888 .on_action(
1889 cx.listener(|pane: &mut Self, action: &CloseActiveItem, cx| {
1890 pane.close_active_item(action, cx)
1891 .map(|task| task.detach_and_log_err(cx));
1892 }),
1893 )
1894 .on_action(
1895 cx.listener(|pane: &mut Self, action: &CloseInactiveItems, cx| {
1896 pane.close_inactive_items(action, cx)
1897 .map(|task| task.detach_and_log_err(cx));
1898 }),
1899 )
1900 .on_action(
1901 cx.listener(|pane: &mut Self, action: &CloseCleanItems, cx| {
1902 pane.close_clean_items(action, cx)
1903 .map(|task| task.detach_and_log_err(cx));
1904 }),
1905 )
1906 .on_action(
1907 cx.listener(|pane: &mut Self, action: &CloseItemsToTheLeft, cx| {
1908 pane.close_items_to_the_left(action, cx)
1909 .map(|task| task.detach_and_log_err(cx));
1910 }),
1911 )
1912 .on_action(
1913 cx.listener(|pane: &mut Self, action: &CloseItemsToTheRight, cx| {
1914 pane.close_items_to_the_right(action, cx)
1915 .map(|task| task.detach_and_log_err(cx));
1916 }),
1917 )
1918 .on_action(cx.listener(|pane: &mut Self, action: &CloseAllItems, cx| {
1919 pane.close_all_items(action, cx)
1920 .map(|task| task.detach_and_log_err(cx));
1921 }))
1922 .on_action(
1923 cx.listener(|pane: &mut Self, action: &CloseActiveItem, cx| {
1924 pane.close_active_item(action, cx)
1925 .map(|task| task.detach_and_log_err(cx));
1926 }),
1927 )
1928 .on_action(
1929 cx.listener(|pane: &mut Self, action: &RevealInProjectPanel, cx| {
1930 pane.project.update(cx, |_, cx| {
1931 cx.emit(project::Event::RevealInProjectPanel(
1932 ProjectEntryId::from_proto(action.entry_id),
1933 ))
1934 })
1935 }),
1936 )
1937 .child(self.render_tab_bar(cx))
1938 .child({
1939 let has_worktrees = self.project.read(cx).worktrees().next().is_some();
1940 // main content
1941 div()
1942 .flex_1()
1943 .relative()
1944 .group("")
1945 .on_drag_move::<DraggedTab>(cx.listener(Self::handle_drag_move))
1946 .on_drag_move::<ProjectEntryId>(cx.listener(Self::handle_drag_move))
1947 .map(|div| {
1948 if let Some(item) = self.active_item() {
1949 div.v_flex()
1950 .child(self.toolbar.clone())
1951 .child(item.to_any())
1952 } else {
1953 let placeholder = div.h_flex().size_full().justify_center();
1954 if has_worktrees {
1955 placeholder
1956 } else {
1957 placeholder.child(
1958 Label::new("Open a file or project to get started.")
1959 .color(Color::Muted),
1960 )
1961 }
1962 }
1963 })
1964 .child(
1965 // drag target
1966 div()
1967 .z_index(1)
1968 .invisible()
1969 .absolute()
1970 .bg(theme::color_alpha(
1971 cx.theme().colors().drop_target_background,
1972 0.75,
1973 ))
1974 .group_drag_over::<DraggedTab>("", |style| style.visible())
1975 .group_drag_over::<ProjectEntryId>("", |style| style.visible())
1976 .when_some(self.can_drop_predicate.clone(), |this, p| {
1977 this.can_drop(move |a, cx| p(a, cx))
1978 })
1979 .on_drop(cx.listener(move |this, dragged_tab, cx| {
1980 this.handle_tab_drop(dragged_tab, this.active_item_index(), cx)
1981 }))
1982 .on_drop(cx.listener(move |this, entry_id, cx| {
1983 this.handle_project_entry_drop(entry_id, cx)
1984 }))
1985 .map(|div| match self.drag_split_direction {
1986 None => div.top_0().left_0().right_0().bottom_0(),
1987 Some(SplitDirection::Up) => div.top_0().left_0().right_0().h_32(),
1988 Some(SplitDirection::Down) => {
1989 div.left_0().bottom_0().right_0().h_32()
1990 }
1991 Some(SplitDirection::Left) => {
1992 div.top_0().left_0().bottom_0().w_32()
1993 }
1994 Some(SplitDirection::Right) => {
1995 div.top_0().bottom_0().right_0().w_32()
1996 }
1997 }),
1998 )
1999 })
2000 .on_mouse_down(
2001 MouseButton::Navigate(NavigationDirection::Back),
2002 cx.listener(|pane, _, cx| {
2003 if let Some(workspace) = pane.workspace.upgrade() {
2004 let pane = cx.view().downgrade();
2005 cx.window_context().defer(move |cx| {
2006 workspace.update(cx, |workspace, cx| {
2007 workspace.go_back(pane, cx).detach_and_log_err(cx)
2008 })
2009 })
2010 }
2011 }),
2012 )
2013 .on_mouse_down(
2014 MouseButton::Navigate(NavigationDirection::Forward),
2015 cx.listener(|pane, _, cx| {
2016 if let Some(workspace) = pane.workspace.upgrade() {
2017 let pane = cx.view().downgrade();
2018 cx.window_context().defer(move |cx| {
2019 workspace.update(cx, |workspace, cx| {
2020 workspace.go_forward(pane, cx).detach_and_log_err(cx)
2021 })
2022 })
2023 }
2024 }),
2025 )
2026 }
2027}
2028
2029impl ItemNavHistory {
2030 pub fn push<D: 'static + Send + Any>(&mut self, data: Option<D>, cx: &mut WindowContext) {
2031 self.history.push(data, self.item.clone(), cx);
2032 }
2033
2034 pub fn pop_backward(&mut self, cx: &mut WindowContext) -> Option<NavigationEntry> {
2035 self.history.pop(NavigationMode::GoingBack, cx)
2036 }
2037
2038 pub fn pop_forward(&mut self, cx: &mut WindowContext) -> Option<NavigationEntry> {
2039 self.history.pop(NavigationMode::GoingForward, cx)
2040 }
2041}
2042
2043impl NavHistory {
2044 pub fn for_each_entry(
2045 &self,
2046 cx: &AppContext,
2047 mut f: impl FnMut(&NavigationEntry, (ProjectPath, Option<PathBuf>)),
2048 ) {
2049 let borrowed_history = self.0.lock();
2050 borrowed_history
2051 .forward_stack
2052 .iter()
2053 .chain(borrowed_history.backward_stack.iter())
2054 .chain(borrowed_history.closed_stack.iter())
2055 .for_each(|entry| {
2056 if let Some(project_and_abs_path) =
2057 borrowed_history.paths_by_item.get(&entry.item.id())
2058 {
2059 f(entry, project_and_abs_path.clone());
2060 } else if let Some(item) = entry.item.upgrade() {
2061 if let Some(path) = item.project_path(cx) {
2062 f(entry, (path, None));
2063 }
2064 }
2065 })
2066 }
2067
2068 pub fn set_mode(&mut self, mode: NavigationMode) {
2069 self.0.lock().mode = mode;
2070 }
2071
2072 pub fn mode(&self) -> NavigationMode {
2073 self.0.lock().mode
2074 }
2075
2076 pub fn disable(&mut self) {
2077 self.0.lock().mode = NavigationMode::Disabled;
2078 }
2079
2080 pub fn enable(&mut self) {
2081 self.0.lock().mode = NavigationMode::Normal;
2082 }
2083
2084 pub fn pop(&mut self, mode: NavigationMode, cx: &mut WindowContext) -> Option<NavigationEntry> {
2085 let mut state = self.0.lock();
2086 let entry = match mode {
2087 NavigationMode::Normal | NavigationMode::Disabled | NavigationMode::ClosingItem => {
2088 return None
2089 }
2090 NavigationMode::GoingBack => &mut state.backward_stack,
2091 NavigationMode::GoingForward => &mut state.forward_stack,
2092 NavigationMode::ReopeningClosedItem => &mut state.closed_stack,
2093 }
2094 .pop_back();
2095 if entry.is_some() {
2096 state.did_update(cx);
2097 }
2098 entry
2099 }
2100
2101 pub fn push<D: 'static + Send + Any>(
2102 &mut self,
2103 data: Option<D>,
2104 item: Arc<dyn WeakItemHandle>,
2105 cx: &mut WindowContext,
2106 ) {
2107 let state = &mut *self.0.lock();
2108 match state.mode {
2109 NavigationMode::Disabled => {}
2110 NavigationMode::Normal | NavigationMode::ReopeningClosedItem => {
2111 if state.backward_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2112 state.backward_stack.pop_front();
2113 }
2114 state.backward_stack.push_back(NavigationEntry {
2115 item,
2116 data: data.map(|data| Box::new(data) as Box<dyn Any + Send>),
2117 timestamp: state.next_timestamp.fetch_add(1, Ordering::SeqCst),
2118 });
2119 state.forward_stack.clear();
2120 }
2121 NavigationMode::GoingBack => {
2122 if state.forward_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2123 state.forward_stack.pop_front();
2124 }
2125 state.forward_stack.push_back(NavigationEntry {
2126 item,
2127 data: data.map(|data| Box::new(data) as Box<dyn Any + Send>),
2128 timestamp: state.next_timestamp.fetch_add(1, Ordering::SeqCst),
2129 });
2130 }
2131 NavigationMode::GoingForward => {
2132 if state.backward_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2133 state.backward_stack.pop_front();
2134 }
2135 state.backward_stack.push_back(NavigationEntry {
2136 item,
2137 data: data.map(|data| Box::new(data) as Box<dyn Any + Send>),
2138 timestamp: state.next_timestamp.fetch_add(1, Ordering::SeqCst),
2139 });
2140 }
2141 NavigationMode::ClosingItem => {
2142 if state.closed_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2143 state.closed_stack.pop_front();
2144 }
2145 state.closed_stack.push_back(NavigationEntry {
2146 item,
2147 data: data.map(|data| Box::new(data) as Box<dyn Any + Send>),
2148 timestamp: state.next_timestamp.fetch_add(1, Ordering::SeqCst),
2149 });
2150 }
2151 }
2152 state.did_update(cx);
2153 }
2154
2155 pub fn remove_item(&mut self, item_id: EntityId) {
2156 let mut state = self.0.lock();
2157 state.paths_by_item.remove(&item_id);
2158 state
2159 .backward_stack
2160 .retain(|entry| entry.item.id() != item_id);
2161 state
2162 .forward_stack
2163 .retain(|entry| entry.item.id() != item_id);
2164 state
2165 .closed_stack
2166 .retain(|entry| entry.item.id() != item_id);
2167 }
2168
2169 pub fn path_for_item(&self, item_id: EntityId) -> Option<(ProjectPath, Option<PathBuf>)> {
2170 self.0.lock().paths_by_item.get(&item_id).cloned()
2171 }
2172}
2173
2174impl NavHistoryState {
2175 pub fn did_update(&self, cx: &mut WindowContext) {
2176 if let Some(pane) = self.pane.upgrade() {
2177 cx.defer(move |cx| {
2178 pane.update(cx, |pane, cx| pane.history_updated(cx));
2179 });
2180 }
2181 }
2182}
2183
2184fn dirty_message_for(buffer_path: Option<ProjectPath>) -> String {
2185 let path = buffer_path
2186 .as_ref()
2187 .and_then(|p| p.path.to_str())
2188 .unwrap_or(&"This buffer");
2189 let path = truncate_and_remove_front(path, 80);
2190 format!("{path} contains unsaved edits. Do you want to save it?")
2191}
2192
2193#[cfg(test)]
2194mod tests {
2195 use super::*;
2196 use crate::item::test::{TestItem, TestProjectItem};
2197 use gpui::{TestAppContext, VisualTestContext};
2198 use project::FakeFs;
2199 use settings::SettingsStore;
2200 use theme::LoadThemes;
2201
2202 #[gpui::test]
2203 async fn test_remove_active_empty(cx: &mut TestAppContext) {
2204 init_test(cx);
2205 let fs = FakeFs::new(cx.executor());
2206
2207 let project = Project::test(fs, None, cx).await;
2208 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2209 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2210
2211 pane.update(cx, |pane, cx| {
2212 assert!(pane
2213 .close_active_item(&CloseActiveItem { save_intent: None }, cx)
2214 .is_none())
2215 });
2216 }
2217
2218 #[gpui::test]
2219 async fn test_add_item_with_new_item(cx: &mut TestAppContext) {
2220 init_test(cx);
2221 let fs = FakeFs::new(cx.executor());
2222
2223 let project = Project::test(fs, None, cx).await;
2224 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2225 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2226
2227 // 1. Add with a destination index
2228 // a. Add before the active item
2229 set_labeled_items(&pane, ["A", "B*", "C"], cx);
2230 pane.update(cx, |pane, cx| {
2231 pane.add_item(
2232 Box::new(cx.build_view(|cx| TestItem::new(cx).with_label("D"))),
2233 false,
2234 false,
2235 Some(0),
2236 cx,
2237 );
2238 });
2239 assert_item_labels(&pane, ["D*", "A", "B", "C"], cx);
2240
2241 // b. Add after the active item
2242 set_labeled_items(&pane, ["A", "B*", "C"], cx);
2243 pane.update(cx, |pane, cx| {
2244 pane.add_item(
2245 Box::new(cx.build_view(|cx| TestItem::new(cx).with_label("D"))),
2246 false,
2247 false,
2248 Some(2),
2249 cx,
2250 );
2251 });
2252 assert_item_labels(&pane, ["A", "B", "D*", "C"], cx);
2253
2254 // c. Add at the end of the item list (including off the length)
2255 set_labeled_items(&pane, ["A", "B*", "C"], cx);
2256 pane.update(cx, |pane, cx| {
2257 pane.add_item(
2258 Box::new(cx.build_view(|cx| TestItem::new(cx).with_label("D"))),
2259 false,
2260 false,
2261 Some(5),
2262 cx,
2263 );
2264 });
2265 assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2266
2267 // 2. Add without a destination index
2268 // a. Add with active item at the start of the item list
2269 set_labeled_items(&pane, ["A*", "B", "C"], cx);
2270 pane.update(cx, |pane, cx| {
2271 pane.add_item(
2272 Box::new(cx.build_view(|cx| TestItem::new(cx).with_label("D"))),
2273 false,
2274 false,
2275 None,
2276 cx,
2277 );
2278 });
2279 set_labeled_items(&pane, ["A", "D*", "B", "C"], cx);
2280
2281 // b. Add with active item at the end of the item list
2282 set_labeled_items(&pane, ["A", "B", "C*"], cx);
2283 pane.update(cx, |pane, cx| {
2284 pane.add_item(
2285 Box::new(cx.build_view(|cx| TestItem::new(cx).with_label("D"))),
2286 false,
2287 false,
2288 None,
2289 cx,
2290 );
2291 });
2292 assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2293 }
2294
2295 #[gpui::test]
2296 async fn test_add_item_with_existing_item(cx: &mut TestAppContext) {
2297 init_test(cx);
2298 let fs = FakeFs::new(cx.executor());
2299
2300 let project = Project::test(fs, None, cx).await;
2301 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2302 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2303
2304 // 1. Add with a destination index
2305 // 1a. Add before the active item
2306 let [_, _, _, d] = set_labeled_items(&pane, ["A", "B*", "C", "D"], cx);
2307 pane.update(cx, |pane, cx| {
2308 pane.add_item(d, false, false, Some(0), cx);
2309 });
2310 assert_item_labels(&pane, ["D*", "A", "B", "C"], cx);
2311
2312 // 1b. Add after the active item
2313 let [_, _, _, d] = set_labeled_items(&pane, ["A", "B*", "C", "D"], cx);
2314 pane.update(cx, |pane, cx| {
2315 pane.add_item(d, false, false, Some(2), cx);
2316 });
2317 assert_item_labels(&pane, ["A", "B", "D*", "C"], cx);
2318
2319 // 1c. Add at the end of the item list (including off the length)
2320 let [a, _, _, _] = set_labeled_items(&pane, ["A", "B*", "C", "D"], cx);
2321 pane.update(cx, |pane, cx| {
2322 pane.add_item(a, false, false, Some(5), cx);
2323 });
2324 assert_item_labels(&pane, ["B", "C", "D", "A*"], cx);
2325
2326 // 1d. Add same item to active index
2327 let [_, b, _] = set_labeled_items(&pane, ["A", "B*", "C"], cx);
2328 pane.update(cx, |pane, cx| {
2329 pane.add_item(b, false, false, Some(1), cx);
2330 });
2331 assert_item_labels(&pane, ["A", "B*", "C"], cx);
2332
2333 // 1e. Add item to index after same item in last position
2334 let [_, _, c] = set_labeled_items(&pane, ["A", "B*", "C"], cx);
2335 pane.update(cx, |pane, cx| {
2336 pane.add_item(c, false, false, Some(2), cx);
2337 });
2338 assert_item_labels(&pane, ["A", "B", "C*"], cx);
2339
2340 // 2. Add without a destination index
2341 // 2a. Add with active item at the start of the item list
2342 let [_, _, _, d] = set_labeled_items(&pane, ["A*", "B", "C", "D"], cx);
2343 pane.update(cx, |pane, cx| {
2344 pane.add_item(d, false, false, None, cx);
2345 });
2346 assert_item_labels(&pane, ["A", "D*", "B", "C"], cx);
2347
2348 // 2b. Add with active item at the end of the item list
2349 let [a, _, _, _] = set_labeled_items(&pane, ["A", "B", "C", "D*"], cx);
2350 pane.update(cx, |pane, cx| {
2351 pane.add_item(a, false, false, None, cx);
2352 });
2353 assert_item_labels(&pane, ["B", "C", "D", "A*"], cx);
2354
2355 // 2c. Add active item to active item at end of list
2356 let [_, _, c] = set_labeled_items(&pane, ["A", "B", "C*"], cx);
2357 pane.update(cx, |pane, cx| {
2358 pane.add_item(c, false, false, None, cx);
2359 });
2360 assert_item_labels(&pane, ["A", "B", "C*"], cx);
2361
2362 // 2d. Add active item to active item at start of list
2363 let [a, _, _] = set_labeled_items(&pane, ["A*", "B", "C"], cx);
2364 pane.update(cx, |pane, cx| {
2365 pane.add_item(a, false, false, None, cx);
2366 });
2367 assert_item_labels(&pane, ["A*", "B", "C"], cx);
2368 }
2369
2370 #[gpui::test]
2371 async fn test_add_item_with_same_project_entries(cx: &mut TestAppContext) {
2372 init_test(cx);
2373 let fs = FakeFs::new(cx.executor());
2374
2375 let project = Project::test(fs, None, cx).await;
2376 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2377 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2378
2379 // singleton view
2380 pane.update(cx, |pane, cx| {
2381 pane.add_item(
2382 Box::new(cx.build_view(|cx| {
2383 TestItem::new(cx)
2384 .with_singleton(true)
2385 .with_label("buffer 1")
2386 .with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
2387 })),
2388 false,
2389 false,
2390 None,
2391 cx,
2392 );
2393 });
2394 assert_item_labels(&pane, ["buffer 1*"], cx);
2395
2396 // new singleton view with the same project entry
2397 pane.update(cx, |pane, cx| {
2398 pane.add_item(
2399 Box::new(cx.build_view(|cx| {
2400 TestItem::new(cx)
2401 .with_singleton(true)
2402 .with_label("buffer 1")
2403 .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
2404 })),
2405 false,
2406 false,
2407 None,
2408 cx,
2409 );
2410 });
2411 assert_item_labels(&pane, ["buffer 1*"], cx);
2412
2413 // new singleton view with different project entry
2414 pane.update(cx, |pane, cx| {
2415 pane.add_item(
2416 Box::new(cx.build_view(|cx| {
2417 TestItem::new(cx)
2418 .with_singleton(true)
2419 .with_label("buffer 2")
2420 .with_project_items(&[TestProjectItem::new(2, "2.txt", cx)])
2421 })),
2422 false,
2423 false,
2424 None,
2425 cx,
2426 );
2427 });
2428 assert_item_labels(&pane, ["buffer 1", "buffer 2*"], cx);
2429
2430 // new multibuffer view with the same project entry
2431 pane.update(cx, |pane, cx| {
2432 pane.add_item(
2433 Box::new(cx.build_view(|cx| {
2434 TestItem::new(cx)
2435 .with_singleton(false)
2436 .with_label("multibuffer 1")
2437 .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
2438 })),
2439 false,
2440 false,
2441 None,
2442 cx,
2443 );
2444 });
2445 assert_item_labels(&pane, ["buffer 1", "buffer 2", "multibuffer 1*"], cx);
2446
2447 // another multibuffer view with the same project entry
2448 pane.update(cx, |pane, cx| {
2449 pane.add_item(
2450 Box::new(cx.build_view(|cx| {
2451 TestItem::new(cx)
2452 .with_singleton(false)
2453 .with_label("multibuffer 1b")
2454 .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
2455 })),
2456 false,
2457 false,
2458 None,
2459 cx,
2460 );
2461 });
2462 assert_item_labels(
2463 &pane,
2464 ["buffer 1", "buffer 2", "multibuffer 1", "multibuffer 1b*"],
2465 cx,
2466 );
2467 }
2468
2469 #[gpui::test]
2470 async fn test_remove_item_ordering(cx: &mut TestAppContext) {
2471 init_test(cx);
2472 let fs = FakeFs::new(cx.executor());
2473
2474 let project = Project::test(fs, None, cx).await;
2475 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2476 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2477
2478 add_labeled_item(&pane, "A", false, cx);
2479 add_labeled_item(&pane, "B", false, cx);
2480 add_labeled_item(&pane, "C", false, cx);
2481 add_labeled_item(&pane, "D", false, cx);
2482 assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2483
2484 pane.update(cx, |pane, cx| pane.activate_item(1, false, false, cx));
2485 add_labeled_item(&pane, "1", false, cx);
2486 assert_item_labels(&pane, ["A", "B", "1*", "C", "D"], cx);
2487
2488 pane.update(cx, |pane, cx| {
2489 pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2490 })
2491 .unwrap()
2492 .await
2493 .unwrap();
2494 assert_item_labels(&pane, ["A", "B*", "C", "D"], cx);
2495
2496 pane.update(cx, |pane, cx| pane.activate_item(3, false, false, cx));
2497 assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2498
2499 pane.update(cx, |pane, cx| {
2500 pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2501 })
2502 .unwrap()
2503 .await
2504 .unwrap();
2505 assert_item_labels(&pane, ["A", "B*", "C"], cx);
2506
2507 pane.update(cx, |pane, cx| {
2508 pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2509 })
2510 .unwrap()
2511 .await
2512 .unwrap();
2513 assert_item_labels(&pane, ["A", "C*"], cx);
2514
2515 pane.update(cx, |pane, cx| {
2516 pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2517 })
2518 .unwrap()
2519 .await
2520 .unwrap();
2521 assert_item_labels(&pane, ["A*"], cx);
2522 }
2523
2524 #[gpui::test]
2525 async fn test_close_inactive_items(cx: &mut TestAppContext) {
2526 init_test(cx);
2527 let fs = FakeFs::new(cx.executor());
2528
2529 let project = Project::test(fs, None, cx).await;
2530 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2531 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2532
2533 set_labeled_items(&pane, ["A", "B", "C*", "D", "E"], cx);
2534
2535 pane.update(cx, |pane, cx| {
2536 pane.close_inactive_items(&CloseInactiveItems, cx)
2537 })
2538 .unwrap()
2539 .await
2540 .unwrap();
2541 assert_item_labels(&pane, ["C*"], cx);
2542 }
2543
2544 #[gpui::test]
2545 async fn test_close_clean_items(cx: &mut TestAppContext) {
2546 init_test(cx);
2547 let fs = FakeFs::new(cx.executor());
2548
2549 let project = Project::test(fs, None, cx).await;
2550 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2551 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2552
2553 add_labeled_item(&pane, "A", true, cx);
2554 add_labeled_item(&pane, "B", false, cx);
2555 add_labeled_item(&pane, "C", true, cx);
2556 add_labeled_item(&pane, "D", false, cx);
2557 add_labeled_item(&pane, "E", false, cx);
2558 assert_item_labels(&pane, ["A^", "B", "C^", "D", "E*"], cx);
2559
2560 pane.update(cx, |pane, cx| pane.close_clean_items(&CloseCleanItems, cx))
2561 .unwrap()
2562 .await
2563 .unwrap();
2564 assert_item_labels(&pane, ["A^", "C*^"], cx);
2565 }
2566
2567 #[gpui::test]
2568 async fn test_close_items_to_the_left(cx: &mut TestAppContext) {
2569 init_test(cx);
2570 let fs = FakeFs::new(cx.executor());
2571
2572 let project = Project::test(fs, None, cx).await;
2573 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2574 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2575
2576 set_labeled_items(&pane, ["A", "B", "C*", "D", "E"], cx);
2577
2578 pane.update(cx, |pane, cx| {
2579 pane.close_items_to_the_left(&CloseItemsToTheLeft, cx)
2580 })
2581 .unwrap()
2582 .await
2583 .unwrap();
2584 assert_item_labels(&pane, ["C*", "D", "E"], cx);
2585 }
2586
2587 #[gpui::test]
2588 async fn test_close_items_to_the_right(cx: &mut TestAppContext) {
2589 init_test(cx);
2590 let fs = FakeFs::new(cx.executor());
2591
2592 let project = Project::test(fs, None, cx).await;
2593 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2594 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2595
2596 set_labeled_items(&pane, ["A", "B", "C*", "D", "E"], cx);
2597
2598 pane.update(cx, |pane, cx| {
2599 pane.close_items_to_the_right(&CloseItemsToTheRight, cx)
2600 })
2601 .unwrap()
2602 .await
2603 .unwrap();
2604 assert_item_labels(&pane, ["A", "B", "C*"], cx);
2605 }
2606
2607 #[gpui::test]
2608 async fn test_close_all_items(cx: &mut TestAppContext) {
2609 init_test(cx);
2610 let fs = FakeFs::new(cx.executor());
2611
2612 let project = Project::test(fs, None, cx).await;
2613 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2614 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2615
2616 add_labeled_item(&pane, "A", false, cx);
2617 add_labeled_item(&pane, "B", false, cx);
2618 add_labeled_item(&pane, "C", false, cx);
2619 assert_item_labels(&pane, ["A", "B", "C*"], cx);
2620
2621 pane.update(cx, |pane, cx| {
2622 pane.close_all_items(&CloseAllItems { save_intent: None }, cx)
2623 })
2624 .unwrap()
2625 .await
2626 .unwrap();
2627 assert_item_labels(&pane, [], cx);
2628
2629 add_labeled_item(&pane, "A", true, cx);
2630 add_labeled_item(&pane, "B", true, cx);
2631 add_labeled_item(&pane, "C", true, cx);
2632 assert_item_labels(&pane, ["A^", "B^", "C*^"], cx);
2633
2634 let save = pane
2635 .update(cx, |pane, cx| {
2636 pane.close_all_items(&CloseAllItems { save_intent: None }, cx)
2637 })
2638 .unwrap();
2639
2640 cx.executor().run_until_parked();
2641 cx.simulate_prompt_answer(2);
2642 save.await.unwrap();
2643 assert_item_labels(&pane, [], cx);
2644 }
2645
2646 fn init_test(cx: &mut TestAppContext) {
2647 cx.update(|cx| {
2648 let settings_store = SettingsStore::test(cx);
2649 cx.set_global(settings_store);
2650 theme::init(LoadThemes::JustBase, cx);
2651 crate::init_settings(cx);
2652 Project::init_settings(cx);
2653 });
2654 }
2655
2656 fn add_labeled_item(
2657 pane: &View<Pane>,
2658 label: &str,
2659 is_dirty: bool,
2660 cx: &mut VisualTestContext,
2661 ) -> Box<View<TestItem>> {
2662 pane.update(cx, |pane, cx| {
2663 let labeled_item = Box::new(
2664 cx.build_view(|cx| TestItem::new(cx).with_label(label).with_dirty(is_dirty)),
2665 );
2666 pane.add_item(labeled_item.clone(), false, false, None, cx);
2667 labeled_item
2668 })
2669 }
2670
2671 fn set_labeled_items<const COUNT: usize>(
2672 pane: &View<Pane>,
2673 labels: [&str; COUNT],
2674 cx: &mut VisualTestContext,
2675 ) -> [Box<View<TestItem>>; COUNT] {
2676 pane.update(cx, |pane, cx| {
2677 pane.items.clear();
2678 let mut active_item_index = 0;
2679
2680 let mut index = 0;
2681 let items = labels.map(|mut label| {
2682 if label.ends_with("*") {
2683 label = label.trim_end_matches("*");
2684 active_item_index = index;
2685 }
2686
2687 let labeled_item =
2688 Box::new(cx.build_view(|cx| TestItem::new(cx).with_label(label)));
2689 pane.add_item(labeled_item.clone(), false, false, None, cx);
2690 index += 1;
2691 labeled_item
2692 });
2693
2694 pane.activate_item(active_item_index, false, false, cx);
2695
2696 items
2697 })
2698 }
2699
2700 // Assert the item label, with the active item label suffixed with a '*'
2701 fn assert_item_labels<const COUNT: usize>(
2702 pane: &View<Pane>,
2703 expected_states: [&str; COUNT],
2704 cx: &mut VisualTestContext,
2705 ) {
2706 pane.update(cx, |pane, cx| {
2707 let actual_states = pane
2708 .items
2709 .iter()
2710 .enumerate()
2711 .map(|(ix, item)| {
2712 let mut state = item
2713 .to_any()
2714 .downcast::<TestItem>()
2715 .unwrap()
2716 .read(cx)
2717 .label
2718 .clone();
2719 if ix == pane.active_item_index {
2720 state.push('*');
2721 }
2722 if item.is_dirty(cx) {
2723 state.push('^');
2724 }
2725 state
2726 })
2727 .collect::<Vec<_>>();
2728
2729 assert_eq!(
2730 actual_states, expected_states,
2731 "pane items do not match expectation"
2732 );
2733 })
2734 }
2735}
2736
2737impl Render for DraggedTab {
2738 type Element = <Tab as RenderOnce>::Rendered;
2739
2740 fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
2741 let ui_font = ThemeSettings::get_global(cx).ui_font.family.clone();
2742 let item = &self.pane.read(cx).items[self.ix];
2743 let label = item.tab_content(Some(self.detail), false, cx);
2744 Tab::new("")
2745 .selected(self.is_active)
2746 .child(label)
2747 .render(cx)
2748 .font(ui_font)
2749 }
2750}