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, 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 sync::{
25 atomic::{AtomicUsize, Ordering},
26 Arc,
27 },
28};
29use theme::ThemeSettings;
30
31use ui::{
32 prelude::*, right_click_menu, ButtonSize, Color, Icon, IconButton, IconSize, Indicator, Label,
33 Tab, TabBar, TabPosition, Tooltip,
34};
35use ui::{v_stack, ContextMenu};
36use util::{maybe, truncate_and_remove_front, ResultExt};
37
38#[derive(PartialEq, Clone, Copy, Deserialize, Debug)]
39#[serde(rename_all = "camelCase")]
40pub enum SaveIntent {
41 /// write all files (even if unchanged)
42 /// prompt before overwriting on-disk changes
43 Save,
44 /// write any files that have local changes
45 /// prompt before overwriting on-disk changes
46 SaveAll,
47 /// always prompt for a new path
48 SaveAs,
49 /// prompt "you have unsaved changes" before writing
50 Close,
51 /// write all dirty files, don't prompt on conflict
52 Overwrite,
53 /// skip all save-related behavior
54 Skip,
55}
56
57#[derive(Clone, Deserialize, PartialEq, Debug)]
58pub struct ActivateItem(pub usize);
59
60// #[derive(Clone, PartialEq)]
61// pub struct CloseItemById {
62// pub item_id: usize,
63// pub pane: WeakView<Pane>,
64// }
65
66// #[derive(Clone, PartialEq)]
67// pub struct CloseItemsToTheLeftById {
68// pub item_id: usize,
69// pub pane: WeakView<Pane>,
70// }
71
72// #[derive(Clone, PartialEq)]
73// pub struct CloseItemsToTheRightById {
74// pub item_id: usize,
75// pub pane: WeakView<Pane>,
76// }
77
78#[derive(Clone, PartialEq, Debug, Deserialize, Default)]
79#[serde(rename_all = "camelCase")]
80pub struct CloseActiveItem {
81 pub save_intent: Option<SaveIntent>,
82}
83
84#[derive(Clone, PartialEq, Debug, Deserialize, Default)]
85#[serde(rename_all = "camelCase")]
86pub struct CloseAllItems {
87 pub save_intent: Option<SaveIntent>,
88}
89
90#[derive(Clone, PartialEq, Debug, Deserialize)]
91#[serde(rename_all = "camelCase")]
92pub struct RevealInProjectPanel {
93 pub entry_id: u64,
94}
95
96impl_actions!(
97 pane,
98 [
99 CloseAllItems,
100 CloseActiveItem,
101 ActivateItem,
102 RevealInProjectPanel
103 ]
104);
105
106actions!(
107 pane,
108 [
109 ActivatePrevItem,
110 ActivateNextItem,
111 ActivateLastItem,
112 CloseInactiveItems,
113 CloseCleanItems,
114 CloseItemsToTheLeft,
115 CloseItemsToTheRight,
116 GoBack,
117 GoForward,
118 ReopenClosedItem,
119 SplitLeft,
120 SplitUp,
121 SplitRight,
122 SplitDown,
123 ]
124);
125
126const MAX_NAVIGATION_HISTORY_LEN: usize = 1024;
127
128pub enum Event {
129 AddItem { item: Box<dyn ItemHandle> },
130 ActivateItem { local: bool },
131 Remove,
132 RemoveItem { item_id: EntityId },
133 Split(SplitDirection),
134 ChangeItemTitle,
135 Focus,
136 ZoomIn,
137 ZoomOut,
138}
139
140impl fmt::Debug for Event {
141 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
142 match self {
143 Event::AddItem { item } => f
144 .debug_struct("AddItem")
145 .field("item", &item.item_id())
146 .finish(),
147 Event::ActivateItem { local } => f
148 .debug_struct("ActivateItem")
149 .field("local", local)
150 .finish(),
151 Event::Remove => f.write_str("Remove"),
152 Event::RemoveItem { item_id } => f
153 .debug_struct("RemoveItem")
154 .field("item_id", item_id)
155 .finish(),
156 Event::Split(direction) => f
157 .debug_struct("Split")
158 .field("direction", direction)
159 .finish(),
160 Event::ChangeItemTitle => f.write_str("ChangeItemTitle"),
161 Event::Focus => f.write_str("Focus"),
162 Event::ZoomIn => f.write_str("ZoomIn"),
163 Event::ZoomOut => f.write_str("ZoomOut"),
164 }
165 }
166}
167
168pub struct Pane {
169 focus_handle: FocusHandle,
170 items: Vec<Box<dyn ItemHandle>>,
171 activation_history: Vec<EntityId>,
172 zoomed: bool,
173 was_focused: bool,
174 active_item_index: usize,
175 last_focused_view_by_item: HashMap<EntityId, FocusHandle>,
176 nav_history: NavHistory,
177 toolbar: View<Toolbar>,
178 new_item_menu: Option<View<ContextMenu>>,
179 split_item_menu: Option<View<ContextMenu>>,
180 // tab_context_menu: ViewHandle<ContextMenu>,
181 workspace: WeakView<Workspace>,
182 project: Model<Project>,
183 drag_split_direction: Option<SplitDirection>,
184 // can_drop: Rc<dyn Fn(&DragAndDrop<Workspace>, &WindowContext) -> bool>,
185 can_split: bool,
186 // render_tab_bar_buttons: Rc<dyn Fn(&mut Pane, &mut ViewContext<Pane>) -> AnyElement<Pane>>,
187 _subscriptions: Vec<Subscription>,
188 tab_bar_scroll_handle: ScrollHandle,
189}
190
191pub struct ItemNavHistory {
192 history: NavHistory,
193 item: Arc<dyn WeakItemHandle>,
194}
195
196#[derive(Clone)]
197pub struct NavHistory(Arc<Mutex<NavHistoryState>>);
198
199struct NavHistoryState {
200 mode: NavigationMode,
201 backward_stack: VecDeque<NavigationEntry>,
202 forward_stack: VecDeque<NavigationEntry>,
203 closed_stack: VecDeque<NavigationEntry>,
204 paths_by_item: HashMap<EntityId, (ProjectPath, Option<PathBuf>)>,
205 pane: WeakView<Pane>,
206 next_timestamp: Arc<AtomicUsize>,
207}
208
209#[derive(Copy, Clone)]
210pub enum NavigationMode {
211 Normal,
212 GoingBack,
213 GoingForward,
214 ClosingItem,
215 ReopeningClosedItem,
216 Disabled,
217}
218
219impl Default for NavigationMode {
220 fn default() -> Self {
221 Self::Normal
222 }
223}
224
225pub struct NavigationEntry {
226 pub item: Arc<dyn WeakItemHandle>,
227 pub data: Option<Box<dyn Any + Send>>,
228 pub timestamp: usize,
229}
230
231#[derive(Clone)]
232struct DraggedTab {
233 pub pane: View<Pane>,
234 pub ix: usize,
235 pub item_id: EntityId,
236 pub detail: usize,
237 pub is_active: bool,
238}
239
240// pub struct DraggedItem {
241// pub handle: Box<dyn ItemHandle>,
242// pub pane: WeakView<Pane>,
243// }
244
245// pub enum ReorderBehavior {
246// None,
247// MoveAfterActive,
248// MoveToIndex(usize),
249// }
250
251// #[derive(Debug, Clone, Copy, PartialEq, Eq)]
252// enum TabBarContextMenuKind {
253// New,
254// Split,
255// }
256
257// struct TabBarContextMenu {
258// kind: TabBarContextMenuKind,
259// handle: ViewHandle<ContextMenu>,
260// }
261
262// impl TabBarContextMenu {
263// fn handle_if_kind(&self, kind: TabBarContextMenuKind) -> Option<ViewHandle<ContextMenu>> {
264// if self.kind == kind {
265// return Some(self.handle.clone());
266// }
267// None
268// }
269// }
270
271// #[allow(clippy::too_many_arguments)]
272// fn nav_button<A: Action, F: 'static + Fn(&mut Pane, &mut ViewContext<Pane>)>(
273// svg_path: &'static str,
274// style: theme2::Interactive<theme2::IconButton>,
275// nav_button_height: f32,
276// tooltip_style: TooltipStyle,
277// enabled: bool,
278// on_click: F,
279// tooltip_action: A,
280// action_name: &str,
281// cx: &mut ViewContext<Pane>,
282// ) -> AnyElement<Pane> {
283// MouseEventHandler::new::<A, _>(0, cx, |state, _| {
284// let style = if enabled {
285// style.style_for(state)
286// } else {
287// style.disabled_style()
288// };
289// Svg::new(svg_path)
290// .with_color(style.color)
291// .constrained()
292// .with_width(style.icon_width)
293// .aligned()
294// .contained()
295// .with_style(style.container)
296// .constrained()
297// .with_width(style.button_width)
298// .with_height(nav_button_height)
299// .aligned()
300// .top()
301// })
302// .with_cursor_style(if enabled {
303// CursorStyle::PointingHand
304// } else {
305// CursorStyle::default()
306// })
307// .on_click(MouseButton::Left, move |_, toolbar, cx| {
308// on_click(toolbar, cx)
309// })
310// .with_tooltip::<A>(
311// 0,
312// action_name.to_string(),
313// Some(Box::new(tooltip_action)),
314// tooltip_style,
315// cx,
316// )
317// .contained()
318// .into_any_named("nav button")
319// }
320
321impl EventEmitter<Event> for Pane {}
322
323impl Pane {
324 pub fn new(
325 workspace: WeakView<Workspace>,
326 project: Model<Project>,
327 next_timestamp: Arc<AtomicUsize>,
328 cx: &mut ViewContext<Self>,
329 ) -> Self {
330 // todo!("context menu")
331 // let pane_view_id = cx.view_id();
332 // let context_menu = cx.add_view(|cx| ContextMenu::new(pane_view_id, cx));
333 // context_menu.update(cx, |menu, _| {
334 // menu.set_position_mode(OverlayPositionMode::Local)
335 // });
336 //
337 let focus_handle = cx.focus_handle();
338
339 let subscriptions = vec![
340 cx.on_focus_in(&focus_handle, move |this, cx| this.focus_in(cx)),
341 cx.on_focus_out(&focus_handle, move |this, cx| this.focus_out(cx)),
342 ];
343
344 let handle = cx.view().downgrade();
345 Self {
346 focus_handle,
347 items: Vec::new(),
348 activation_history: Vec::new(),
349 was_focused: false,
350 zoomed: false,
351 active_item_index: 0,
352 last_focused_view_by_item: Default::default(),
353 nav_history: NavHistory(Arc::new(Mutex::new(NavHistoryState {
354 mode: NavigationMode::Normal,
355 backward_stack: Default::default(),
356 forward_stack: Default::default(),
357 closed_stack: Default::default(),
358 paths_by_item: Default::default(),
359 pane: handle.clone(),
360 next_timestamp,
361 }))),
362 toolbar: cx.build_view(|_| Toolbar::new()),
363 new_item_menu: None,
364 split_item_menu: None,
365 tab_bar_scroll_handle: ScrollHandle::new(),
366 drag_split_direction: None,
367 // tab_bar_context_menu: TabBarContextMenu {
368 // kind: TabBarContextMenuKind::New,
369 // handle: context_menu,
370 // },
371 // tab_context_menu: cx.add_view(|cx| ContextMenu::new(pane_view_id, cx)),
372 workspace,
373 project,
374 // can_drop: Rc::new(|_, _| true),
375 can_split: true,
376 // render_tab_bar_buttons: Rc::new(move |pane, cx| {
377 // Flex::row()
378 // // New menu
379 // .with_child(Self::render_tab_bar_button(
380 // 0,
381 // "icons/plus.svg",
382 // false,
383 // Some(("New...".into(), None)),
384 // cx,
385 // |pane, cx| pane.deploy_new_menu(cx),
386 // |pane, cx| {
387 // pane.tab_bar_context_menu
388 // .handle
389 // .update(cx, |menu, _| menu.delay_cancel())
390 // },
391 // pane.tab_bar_context_menu
392 // .handle_if_kind(TabBarContextMenuKind::New),
393 // ))
394 // .with_child(Self::render_tab_bar_button(
395 // 1,
396 // "icons/split.svg",
397 // false,
398 // Some(("Split Pane".into(), None)),
399 // cx,
400 // |pane, cx| pane.deploy_split_menu(cx),
401 // |pane, cx| {
402 // pane.tab_bar_context_menu
403 // .handle
404 // .update(cx, |menu, _| menu.delay_cancel())
405 // },
406 // pane.tab_bar_context_menu
407 // .handle_if_kind(TabBarContextMenuKind::Split),
408 // ))
409 // .with_child({
410 // let icon_path;
411 // let tooltip_label;
412 // if pane.is_zoomed() {
413 // icon_path = "icons/minimize.svg";
414 // tooltip_label = "Zoom In";
415 // } else {
416 // icon_path = "icons/maximize.svg";
417 // tooltip_label = "Zoom In";
418 // }
419
420 // Pane::render_tab_bar_button(
421 // 2,
422 // icon_path,
423 // pane.is_zoomed(),
424 // Some((tooltip_label, Some(Box::new(ToggleZoom)))),
425 // cx,
426 // move |pane, cx| pane.toggle_zoom(&Default::default(), cx),
427 // move |_, _| {},
428 // None,
429 // )
430 // })
431 // .into_any()
432 // }),
433 _subscriptions: subscriptions,
434 }
435 }
436
437 pub fn has_focus(&self, cx: &WindowContext) -> bool {
438 // todo!(); // inline this manually
439 self.focus_handle.contains_focused(cx)
440 }
441
442 fn focus_in(&mut self, cx: &mut ViewContext<Self>) {
443 if !self.was_focused {
444 self.was_focused = true;
445 cx.emit(Event::Focus);
446 cx.notify();
447 }
448
449 self.toolbar.update(cx, |toolbar, cx| {
450 toolbar.focus_changed(true, cx);
451 });
452
453 if let Some(active_item) = self.active_item() {
454 if self.focus_handle.is_focused(cx) {
455 // Pane was focused directly. We need to either focus a view inside the active item,
456 // or focus the active item itself
457 if let Some(weak_last_focused_view) =
458 self.last_focused_view_by_item.get(&active_item.item_id())
459 {
460 weak_last_focused_view.focus(cx);
461 return;
462 }
463
464 active_item.focus_handle(cx).focus(cx);
465 } else if let Some(focused) = cx.focused() {
466 if !self.context_menu_focused(cx) {
467 self.last_focused_view_by_item
468 .insert(active_item.item_id(), focused);
469 }
470 }
471 }
472 }
473
474 fn context_menu_focused(&self, cx: &mut ViewContext<Self>) -> bool {
475 self.new_item_menu
476 .as_ref()
477 .or(self.split_item_menu.as_ref())
478 .map_or(false, |menu| menu.focus_handle(cx).is_focused(cx))
479 }
480
481 fn focus_out(&mut self, cx: &mut ViewContext<Self>) {
482 self.was_focused = false;
483 self.toolbar.update(cx, |toolbar, cx| {
484 toolbar.focus_changed(false, cx);
485 });
486 cx.notify();
487 }
488
489 pub fn active_item_index(&self) -> usize {
490 self.active_item_index
491 }
492
493 // pub fn on_can_drop<F>(&mut self, can_drop: F)
494 // where
495 // F: 'static + Fn(&DragAndDrop<Workspace>, &WindowContext) -> bool,
496 // {
497 // self.can_drop = Rc::new(can_drop);
498 // }
499
500 pub fn set_can_split(&mut self, can_split: bool, cx: &mut ViewContext<Self>) {
501 self.can_split = can_split;
502 cx.notify();
503 }
504
505 pub fn set_can_navigate(&mut self, can_navigate: bool, cx: &mut ViewContext<Self>) {
506 self.toolbar.update(cx, |toolbar, cx| {
507 toolbar.set_can_navigate(can_navigate, cx);
508 });
509 cx.notify();
510 }
511
512 // pub fn set_render_tab_bar_buttons<F>(&mut self, cx: &mut ViewContext<Self>, render: F)
513 // where
514 // F: 'static + Fn(&mut Pane, &mut ViewContext<Pane>) -> AnyElement<Pane>,
515 // {
516 // self.render_tab_bar_buttons = Rc::new(render);
517 // cx.notify();
518 // }
519
520 pub fn nav_history_for_item<T: Item>(&self, item: &View<T>) -> ItemNavHistory {
521 ItemNavHistory {
522 history: self.nav_history.clone(),
523 item: Arc::new(item.downgrade()),
524 }
525 }
526
527 pub fn nav_history(&self) -> &NavHistory {
528 &self.nav_history
529 }
530
531 pub fn nav_history_mut(&mut self) -> &mut NavHistory {
532 &mut self.nav_history
533 }
534
535 pub fn disable_history(&mut self) {
536 self.nav_history.disable();
537 }
538
539 pub fn enable_history(&mut self) {
540 self.nav_history.enable();
541 }
542
543 pub fn can_navigate_backward(&self) -> bool {
544 !self.nav_history.0.lock().backward_stack.is_empty()
545 }
546
547 pub fn can_navigate_forward(&self) -> bool {
548 !self.nav_history.0.lock().forward_stack.is_empty()
549 }
550
551 fn navigate_backward(&mut self, cx: &mut ViewContext<Self>) {
552 if let Some(workspace) = self.workspace.upgrade() {
553 let pane = cx.view().downgrade();
554 cx.window_context().defer(move |cx| {
555 workspace.update(cx, |workspace, cx| {
556 workspace.go_back(pane, cx).detach_and_log_err(cx)
557 })
558 })
559 }
560 }
561
562 fn navigate_forward(&mut self, cx: &mut ViewContext<Self>) {
563 if let Some(workspace) = self.workspace.upgrade() {
564 let pane = cx.view().downgrade();
565 cx.window_context().defer(move |cx| {
566 workspace.update(cx, |workspace, cx| {
567 workspace.go_forward(pane, cx).detach_and_log_err(cx)
568 })
569 })
570 }
571 }
572
573 fn history_updated(&mut self, cx: &mut ViewContext<Self>) {
574 self.toolbar.update(cx, |_, cx| cx.notify());
575 }
576
577 pub(crate) fn open_item(
578 &mut self,
579 project_entry_id: Option<ProjectEntryId>,
580 focus_item: bool,
581 cx: &mut ViewContext<Self>,
582 build_item: impl FnOnce(&mut ViewContext<Pane>) -> Box<dyn ItemHandle>,
583 ) -> Box<dyn ItemHandle> {
584 let mut existing_item = None;
585 if let Some(project_entry_id) = project_entry_id {
586 for (index, item) in self.items.iter().enumerate() {
587 if item.is_singleton(cx)
588 && item.project_entry_ids(cx).as_slice() == [project_entry_id]
589 {
590 let item = item.boxed_clone();
591 existing_item = Some((index, item));
592 break;
593 }
594 }
595 }
596
597 if let Some((index, existing_item)) = existing_item {
598 self.activate_item(index, focus_item, focus_item, cx);
599 existing_item
600 } else {
601 let new_item = build_item(cx);
602 self.add_item(new_item.clone(), true, focus_item, None, cx);
603 new_item
604 }
605 }
606
607 pub fn add_item(
608 &mut self,
609 item: Box<dyn ItemHandle>,
610 activate_pane: bool,
611 focus_item: bool,
612 destination_index: Option<usize>,
613 cx: &mut ViewContext<Self>,
614 ) {
615 if item.is_singleton(cx) {
616 if let Some(&entry_id) = item.project_entry_ids(cx).get(0) {
617 let project = self.project.read(cx);
618 if let Some(project_path) = project.path_for_entry(entry_id, cx) {
619 let abs_path = project.absolute_path(&project_path, cx);
620 self.nav_history
621 .0
622 .lock()
623 .paths_by_item
624 .insert(item.item_id(), (project_path, abs_path));
625 }
626 }
627 }
628 // If no destination index is specified, add or move the item after the active item.
629 let mut insertion_index = {
630 cmp::min(
631 if let Some(destination_index) = destination_index {
632 destination_index
633 } else {
634 self.active_item_index + 1
635 },
636 self.items.len(),
637 )
638 };
639
640 // Does the item already exist?
641 let project_entry_id = if item.is_singleton(cx) {
642 item.project_entry_ids(cx).get(0).copied()
643 } else {
644 None
645 };
646
647 let existing_item_index = self.items.iter().position(|existing_item| {
648 if existing_item.item_id() == item.item_id() {
649 true
650 } else if existing_item.is_singleton(cx) {
651 existing_item
652 .project_entry_ids(cx)
653 .get(0)
654 .map_or(false, |existing_entry_id| {
655 Some(existing_entry_id) == project_entry_id.as_ref()
656 })
657 } else {
658 false
659 }
660 });
661
662 if let Some(existing_item_index) = existing_item_index {
663 // If the item already exists, move it to the desired destination and activate it
664
665 if existing_item_index != insertion_index {
666 let existing_item_is_active = existing_item_index == self.active_item_index;
667
668 // If the caller didn't specify a destination and the added item is already
669 // the active one, don't move it
670 if existing_item_is_active && destination_index.is_none() {
671 insertion_index = existing_item_index;
672 } else {
673 self.items.remove(existing_item_index);
674 if existing_item_index < self.active_item_index {
675 self.active_item_index -= 1;
676 }
677 insertion_index = insertion_index.min(self.items.len());
678
679 self.items.insert(insertion_index, item.clone());
680
681 if existing_item_is_active {
682 self.active_item_index = insertion_index;
683 } else if insertion_index <= self.active_item_index {
684 self.active_item_index += 1;
685 }
686 }
687
688 cx.notify();
689 }
690
691 self.activate_item(insertion_index, activate_pane, focus_item, cx);
692 } else {
693 self.items.insert(insertion_index, item.clone());
694 if insertion_index <= self.active_item_index {
695 self.active_item_index += 1;
696 }
697
698 self.activate_item(insertion_index, activate_pane, focus_item, cx);
699 cx.notify();
700 }
701
702 cx.emit(Event::AddItem { item });
703 }
704
705 pub fn items_len(&self) -> usize {
706 self.items.len()
707 }
708
709 pub fn items(&self) -> impl Iterator<Item = &Box<dyn ItemHandle>> + DoubleEndedIterator {
710 self.items.iter()
711 }
712
713 pub fn items_of_type<T: Render>(&self) -> impl '_ + Iterator<Item = View<T>> {
714 self.items
715 .iter()
716 .filter_map(|item| item.to_any().downcast().ok())
717 }
718
719 pub fn active_item(&self) -> Option<Box<dyn ItemHandle>> {
720 self.items.get(self.active_item_index).cloned()
721 }
722
723 pub fn pixel_position_of_cursor(&self, cx: &AppContext) -> Option<Point<Pixels>> {
724 self.items
725 .get(self.active_item_index)?
726 .pixel_position_of_cursor(cx)
727 }
728
729 pub fn item_for_entry(
730 &self,
731 entry_id: ProjectEntryId,
732 cx: &AppContext,
733 ) -> Option<Box<dyn ItemHandle>> {
734 self.items.iter().find_map(|item| {
735 if item.is_singleton(cx) && item.project_entry_ids(cx).as_slice() == [entry_id] {
736 Some(item.boxed_clone())
737 } else {
738 None
739 }
740 })
741 }
742
743 pub fn index_for_item(&self, item: &dyn ItemHandle) -> Option<usize> {
744 self.items
745 .iter()
746 .position(|i| i.item_id() == item.item_id())
747 }
748
749 pub fn toggle_zoom(&mut self, _: &ToggleZoom, cx: &mut ViewContext<Self>) {
750 if self.zoomed {
751 cx.emit(Event::ZoomOut);
752 } else if !self.items.is_empty() {
753 if !self.focus_handle.contains_focused(cx) {
754 cx.focus_self();
755 }
756 cx.emit(Event::ZoomIn);
757 }
758 }
759
760 pub fn activate_item(
761 &mut self,
762 index: usize,
763 activate_pane: bool,
764 focus_item: bool,
765 cx: &mut ViewContext<Self>,
766 ) {
767 use NavigationMode::{GoingBack, GoingForward};
768
769 if index < self.items.len() {
770 let prev_active_item_ix = mem::replace(&mut self.active_item_index, index);
771 if prev_active_item_ix != self.active_item_index
772 || matches!(self.nav_history.mode(), GoingBack | GoingForward)
773 {
774 if let Some(prev_item) = self.items.get(prev_active_item_ix) {
775 prev_item.deactivated(cx);
776 }
777
778 cx.emit(Event::ActivateItem {
779 local: activate_pane,
780 });
781 }
782
783 if let Some(newly_active_item) = self.items.get(index) {
784 self.activation_history
785 .retain(|&previously_active_item_id| {
786 previously_active_item_id != newly_active_item.item_id()
787 });
788 self.activation_history.push(newly_active_item.item_id());
789 }
790
791 self.update_toolbar(cx);
792
793 if focus_item {
794 self.focus_active_item(cx);
795 }
796
797 self.tab_bar_scroll_handle.scroll_to_item(index);
798 cx.notify();
799 }
800 }
801
802 pub fn activate_prev_item(&mut self, activate_pane: bool, cx: &mut ViewContext<Self>) {
803 let mut index = self.active_item_index;
804 if index > 0 {
805 index -= 1;
806 } else if !self.items.is_empty() {
807 index = self.items.len() - 1;
808 }
809 self.activate_item(index, activate_pane, activate_pane, cx);
810 }
811
812 pub fn activate_next_item(&mut self, activate_pane: bool, cx: &mut ViewContext<Self>) {
813 let mut index = self.active_item_index;
814 if index + 1 < self.items.len() {
815 index += 1;
816 } else {
817 index = 0;
818 }
819 self.activate_item(index, activate_pane, activate_pane, cx);
820 }
821
822 pub fn close_active_item(
823 &mut self,
824 action: &CloseActiveItem,
825 cx: &mut ViewContext<Self>,
826 ) -> Option<Task<Result<()>>> {
827 if self.items.is_empty() {
828 return None;
829 }
830 let active_item_id = self.items[self.active_item_index].item_id();
831 Some(self.close_item_by_id(
832 active_item_id,
833 action.save_intent.unwrap_or(SaveIntent::Close),
834 cx,
835 ))
836 }
837
838 pub fn close_item_by_id(
839 &mut self,
840 item_id_to_close: EntityId,
841 save_intent: SaveIntent,
842 cx: &mut ViewContext<Self>,
843 ) -> Task<Result<()>> {
844 self.close_items(cx, save_intent, move |view_id| view_id == item_id_to_close)
845 }
846
847 pub fn close_inactive_items(
848 &mut self,
849 _: &CloseInactiveItems,
850 cx: &mut ViewContext<Self>,
851 ) -> Option<Task<Result<()>>> {
852 if self.items.is_empty() {
853 return None;
854 }
855
856 let active_item_id = self.items[self.active_item_index].item_id();
857 Some(self.close_items(cx, SaveIntent::Close, move |item_id| {
858 item_id != active_item_id
859 }))
860 }
861
862 pub fn close_clean_items(
863 &mut self,
864 _: &CloseCleanItems,
865 cx: &mut ViewContext<Self>,
866 ) -> Option<Task<Result<()>>> {
867 let item_ids: Vec<_> = self
868 .items()
869 .filter(|item| !item.is_dirty(cx))
870 .map(|item| item.item_id())
871 .collect();
872 Some(self.close_items(cx, SaveIntent::Close, move |item_id| {
873 item_ids.contains(&item_id)
874 }))
875 }
876
877 pub fn close_items_to_the_left(
878 &mut self,
879 _: &CloseItemsToTheLeft,
880 cx: &mut ViewContext<Self>,
881 ) -> Option<Task<Result<()>>> {
882 if self.items.is_empty() {
883 return None;
884 }
885 let active_item_id = self.items[self.active_item_index].item_id();
886 Some(self.close_items_to_the_left_by_id(active_item_id, cx))
887 }
888
889 pub fn close_items_to_the_left_by_id(
890 &mut self,
891 item_id: EntityId,
892 cx: &mut ViewContext<Self>,
893 ) -> Task<Result<()>> {
894 let item_ids: Vec<_> = self
895 .items()
896 .take_while(|item| item.item_id() != item_id)
897 .map(|item| item.item_id())
898 .collect();
899 self.close_items(cx, SaveIntent::Close, move |item_id| {
900 item_ids.contains(&item_id)
901 })
902 }
903
904 pub fn close_items_to_the_right(
905 &mut self,
906 _: &CloseItemsToTheRight,
907 cx: &mut ViewContext<Self>,
908 ) -> Option<Task<Result<()>>> {
909 if self.items.is_empty() {
910 return None;
911 }
912 let active_item_id = self.items[self.active_item_index].item_id();
913 Some(self.close_items_to_the_right_by_id(active_item_id, cx))
914 }
915
916 pub fn close_items_to_the_right_by_id(
917 &mut self,
918 item_id: EntityId,
919 cx: &mut ViewContext<Self>,
920 ) -> Task<Result<()>> {
921 let item_ids: Vec<_> = self
922 .items()
923 .rev()
924 .take_while(|item| item.item_id() != item_id)
925 .map(|item| item.item_id())
926 .collect();
927 self.close_items(cx, SaveIntent::Close, move |item_id| {
928 item_ids.contains(&item_id)
929 })
930 }
931
932 pub fn close_all_items(
933 &mut self,
934 action: &CloseAllItems,
935 cx: &mut ViewContext<Self>,
936 ) -> Option<Task<Result<()>>> {
937 if self.items.is_empty() {
938 return None;
939 }
940
941 Some(
942 self.close_items(cx, action.save_intent.unwrap_or(SaveIntent::Close), |_| {
943 true
944 }),
945 )
946 }
947
948 pub(super) fn file_names_for_prompt(
949 items: &mut dyn Iterator<Item = &Box<dyn ItemHandle>>,
950 all_dirty_items: usize,
951 cx: &AppContext,
952 ) -> String {
953 /// Quantity of item paths displayed in prompt prior to cutoff..
954 const FILE_NAMES_CUTOFF_POINT: usize = 10;
955 let mut file_names: Vec<_> = items
956 .filter_map(|item| {
957 item.project_path(cx).and_then(|project_path| {
958 project_path
959 .path
960 .file_name()
961 .and_then(|name| name.to_str().map(ToOwned::to_owned))
962 })
963 })
964 .take(FILE_NAMES_CUTOFF_POINT)
965 .collect();
966 let should_display_followup_text =
967 all_dirty_items > FILE_NAMES_CUTOFF_POINT || file_names.len() != all_dirty_items;
968 if should_display_followup_text {
969 let not_shown_files = all_dirty_items - file_names.len();
970 if not_shown_files == 1 {
971 file_names.push(".. 1 file not shown".into());
972 } else {
973 file_names.push(format!(".. {} files not shown", not_shown_files).into());
974 }
975 }
976 let file_names = file_names.join("\n");
977 format!(
978 "Do you want to save changes to the following {} files?\n{file_names}",
979 all_dirty_items
980 )
981 }
982
983 pub fn close_items(
984 &mut self,
985 cx: &mut ViewContext<Pane>,
986 mut save_intent: SaveIntent,
987 should_close: impl 'static + Fn(EntityId) -> bool,
988 ) -> Task<Result<()>> {
989 // Find the items to close.
990 let mut items_to_close = Vec::new();
991 let mut dirty_items = Vec::new();
992 for item in &self.items {
993 if should_close(item.item_id()) {
994 items_to_close.push(item.boxed_clone());
995 if item.is_dirty(cx) {
996 dirty_items.push(item.boxed_clone());
997 }
998 }
999 }
1000
1001 // If a buffer is open both in a singleton editor and in a multibuffer, make sure
1002 // to focus the singleton buffer when prompting to save that buffer, as opposed
1003 // to focusing the multibuffer, because this gives the user a more clear idea
1004 // of what content they would be saving.
1005 items_to_close.sort_by_key(|item| !item.is_singleton(cx));
1006
1007 let workspace = self.workspace.clone();
1008 cx.spawn(|pane, mut cx| async move {
1009 if save_intent == SaveIntent::Close && dirty_items.len() > 1 {
1010 let answer = pane.update(&mut cx, |_, cx| {
1011 let prompt =
1012 Self::file_names_for_prompt(&mut dirty_items.iter(), dirty_items.len(), cx);
1013 cx.prompt(
1014 PromptLevel::Warning,
1015 &prompt,
1016 &["Save all", "Discard all", "Cancel"],
1017 )
1018 })?;
1019 match answer.await {
1020 Ok(0) => save_intent = SaveIntent::SaveAll,
1021 Ok(1) => save_intent = SaveIntent::Skip,
1022 _ => {}
1023 }
1024 }
1025 let mut saved_project_items_ids = HashSet::default();
1026 for item in items_to_close.clone() {
1027 // Find the item's current index and its set of project item models. Avoid
1028 // storing these in advance, in case they have changed since this task
1029 // was started.
1030 let (item_ix, mut project_item_ids) = pane.update(&mut cx, |pane, cx| {
1031 (pane.index_for_item(&*item), item.project_item_model_ids(cx))
1032 })?;
1033 let item_ix = if let Some(ix) = item_ix {
1034 ix
1035 } else {
1036 continue;
1037 };
1038
1039 // Check if this view has any project items that are not open anywhere else
1040 // in the workspace, AND that the user has not already been prompted to save.
1041 // If there are any such project entries, prompt the user to save this item.
1042 let project = workspace.update(&mut cx, |workspace, cx| {
1043 for item in workspace.items(cx) {
1044 if !items_to_close
1045 .iter()
1046 .any(|item_to_close| item_to_close.item_id() == item.item_id())
1047 {
1048 let other_project_item_ids = item.project_item_model_ids(cx);
1049 project_item_ids.retain(|id| !other_project_item_ids.contains(id));
1050 }
1051 }
1052 workspace.project().clone()
1053 })?;
1054 let should_save = project_item_ids
1055 .iter()
1056 .any(|id| saved_project_items_ids.insert(*id));
1057
1058 if should_save
1059 && !Self::save_item(
1060 project.clone(),
1061 &pane,
1062 item_ix,
1063 &*item,
1064 save_intent,
1065 &mut cx,
1066 )
1067 .await?
1068 {
1069 break;
1070 }
1071
1072 // Remove the item from the pane.
1073 pane.update(&mut cx, |pane, cx| {
1074 if let Some(item_ix) = pane
1075 .items
1076 .iter()
1077 .position(|i| i.item_id() == item.item_id())
1078 {
1079 pane.remove_item(item_ix, false, cx);
1080 }
1081 })
1082 .ok();
1083 }
1084
1085 pane.update(&mut cx, |_, cx| cx.notify()).ok();
1086 Ok(())
1087 })
1088 }
1089
1090 pub fn remove_item(
1091 &mut self,
1092 item_index: usize,
1093 activate_pane: bool,
1094 cx: &mut ViewContext<Self>,
1095 ) {
1096 self.activation_history
1097 .retain(|&history_entry| history_entry != self.items[item_index].item_id());
1098
1099 if item_index == self.active_item_index {
1100 let index_to_activate = self
1101 .activation_history
1102 .pop()
1103 .and_then(|last_activated_item| {
1104 self.items.iter().enumerate().find_map(|(index, item)| {
1105 (item.item_id() == last_activated_item).then_some(index)
1106 })
1107 })
1108 // We didn't have a valid activation history entry, so fallback
1109 // to activating the item to the left
1110 .unwrap_or_else(|| item_index.min(self.items.len()).saturating_sub(1));
1111
1112 let should_activate = activate_pane || self.has_focus(cx);
1113 if self.items.len() == 1 && should_activate {
1114 self.focus_handle.focus(cx);
1115 } else {
1116 self.activate_item(index_to_activate, should_activate, should_activate, cx);
1117 }
1118 }
1119
1120 let item = self.items.remove(item_index);
1121
1122 cx.emit(Event::RemoveItem {
1123 item_id: item.item_id(),
1124 });
1125 if self.items.is_empty() {
1126 item.deactivated(cx);
1127 self.update_toolbar(cx);
1128 cx.emit(Event::Remove);
1129 }
1130
1131 if item_index < self.active_item_index {
1132 self.active_item_index -= 1;
1133 }
1134
1135 self.nav_history.set_mode(NavigationMode::ClosingItem);
1136 item.deactivated(cx);
1137 self.nav_history.set_mode(NavigationMode::Normal);
1138
1139 if let Some(path) = item.project_path(cx) {
1140 let abs_path = self
1141 .nav_history
1142 .0
1143 .lock()
1144 .paths_by_item
1145 .get(&item.item_id())
1146 .and_then(|(_, abs_path)| abs_path.clone());
1147
1148 self.nav_history
1149 .0
1150 .lock()
1151 .paths_by_item
1152 .insert(item.item_id(), (path, abs_path));
1153 } else {
1154 self.nav_history
1155 .0
1156 .lock()
1157 .paths_by_item
1158 .remove(&item.item_id());
1159 }
1160
1161 if self.items.is_empty() && self.zoomed {
1162 cx.emit(Event::ZoomOut);
1163 }
1164
1165 cx.notify();
1166 }
1167
1168 pub async fn save_item(
1169 project: Model<Project>,
1170 pane: &WeakView<Pane>,
1171 item_ix: usize,
1172 item: &dyn ItemHandle,
1173 save_intent: SaveIntent,
1174 cx: &mut AsyncWindowContext,
1175 ) -> Result<bool> {
1176 const CONFLICT_MESSAGE: &str =
1177 "This file has changed on disk since you started editing it. Do you want to overwrite it?";
1178
1179 if save_intent == SaveIntent::Skip {
1180 return Ok(true);
1181 }
1182
1183 let (mut has_conflict, mut is_dirty, mut can_save, can_save_as) = cx.update(|_, cx| {
1184 (
1185 item.has_conflict(cx),
1186 item.is_dirty(cx),
1187 item.can_save(cx),
1188 item.is_singleton(cx),
1189 )
1190 })?;
1191
1192 // when saving a single buffer, we ignore whether or not it's dirty.
1193 if save_intent == SaveIntent::Save {
1194 is_dirty = true;
1195 }
1196
1197 if save_intent == SaveIntent::SaveAs {
1198 is_dirty = true;
1199 has_conflict = false;
1200 can_save = false;
1201 }
1202
1203 if save_intent == SaveIntent::Overwrite {
1204 has_conflict = false;
1205 }
1206
1207 if has_conflict && can_save {
1208 let answer = pane.update(cx, |pane, cx| {
1209 pane.activate_item(item_ix, true, true, cx);
1210 cx.prompt(
1211 PromptLevel::Warning,
1212 CONFLICT_MESSAGE,
1213 &["Overwrite", "Discard", "Cancel"],
1214 )
1215 })?;
1216 match answer.await {
1217 Ok(0) => pane.update(cx, |_, cx| item.save(project, cx))?.await?,
1218 Ok(1) => pane.update(cx, |_, cx| item.reload(project, cx))?.await?,
1219 _ => return Ok(false),
1220 }
1221 } else if is_dirty && (can_save || can_save_as) {
1222 if save_intent == SaveIntent::Close {
1223 let will_autosave = cx.update(|_, cx| {
1224 matches!(
1225 WorkspaceSettings::get_global(cx).autosave,
1226 AutosaveSetting::OnFocusChange | AutosaveSetting::OnWindowChange
1227 ) && Self::can_autosave_item(&*item, cx)
1228 })?;
1229 if !will_autosave {
1230 let answer = pane.update(cx, |pane, cx| {
1231 pane.activate_item(item_ix, true, true, cx);
1232 let prompt = dirty_message_for(item.project_path(cx));
1233 cx.prompt(
1234 PromptLevel::Warning,
1235 &prompt,
1236 &["Save", "Don't Save", "Cancel"],
1237 )
1238 })?;
1239 match answer.await {
1240 Ok(0) => {}
1241 Ok(1) => return Ok(true), // Don't save this file
1242 _ => return Ok(false), // Cancel
1243 }
1244 }
1245 }
1246
1247 if can_save {
1248 pane.update(cx, |_, cx| item.save(project, cx))?.await?;
1249 } else if can_save_as {
1250 let start_abs_path = project
1251 .update(cx, |project, cx| {
1252 let worktree = project.visible_worktrees(cx).next()?;
1253 Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
1254 })?
1255 .unwrap_or_else(|| Path::new("").into());
1256
1257 let abs_path = cx.update(|_, cx| cx.prompt_for_new_path(&start_abs_path))?;
1258 if let Some(abs_path) = abs_path.await.ok().flatten() {
1259 pane.update(cx, |_, cx| item.save_as(project, abs_path, cx))?
1260 .await?;
1261 } else {
1262 return Ok(false);
1263 }
1264 }
1265 }
1266 Ok(true)
1267 }
1268
1269 fn can_autosave_item(item: &dyn ItemHandle, cx: &AppContext) -> bool {
1270 let is_deleted = item.project_entry_ids(cx).is_empty();
1271 item.is_dirty(cx) && !item.has_conflict(cx) && item.can_save(cx) && !is_deleted
1272 }
1273
1274 pub fn autosave_item(
1275 item: &dyn ItemHandle,
1276 project: Model<Project>,
1277 cx: &mut WindowContext,
1278 ) -> Task<Result<()>> {
1279 if Self::can_autosave_item(item, cx) {
1280 item.save(project, cx)
1281 } else {
1282 Task::ready(Ok(()))
1283 }
1284 }
1285
1286 pub fn focus(&mut self, cx: &mut ViewContext<Pane>) {
1287 cx.focus(&self.focus_handle);
1288 }
1289
1290 pub fn focus_active_item(&mut self, cx: &mut ViewContext<Self>) {
1291 if let Some(active_item) = self.active_item() {
1292 let focus_handle = active_item.focus_handle(cx);
1293 cx.focus(&focus_handle);
1294 }
1295 }
1296
1297 pub fn split(&mut self, direction: SplitDirection, cx: &mut ViewContext<Self>) {
1298 cx.emit(Event::Split(direction));
1299 }
1300
1301 // fn deploy_split_menu(&mut self, cx: &mut ViewContext<Self>) {
1302 // self.tab_bar_context_menu.handle.update(cx, |menu, cx| {
1303 // menu.toggle(
1304 // Default::default(),
1305 // AnchorCorner::TopRight,
1306 // vec![
1307 // ContextMenuItem::action("Split Right", SplitRight),
1308 // ContextMenuItem::action("Split Left", SplitLeft),
1309 // ContextMenuItem::action("Split Up", SplitUp),
1310 // ContextMenuItem::action("Split Down", SplitDown),
1311 // ],
1312 // cx,
1313 // );
1314 // });
1315
1316 // self.tab_bar_context_menu.kind = TabBarContextMenuKind::Split;
1317 // }
1318
1319 // fn deploy_new_menu(&mut self, cx: &mut ViewContext<Self>) {
1320 // self.tab_bar_context_menu.handle.update(cx, |menu, cx| {
1321 // menu.toggle(
1322 // Default::default(),
1323 // AnchorCorner::TopRight,
1324 // vec![
1325 // ContextMenuItem::action("New File", NewFile),
1326 // ContextMenuItem::action("New Terminal", NewCenterTerminal),
1327 // ContextMenuItem::action("New Search", NewSearch),
1328 // ],
1329 // cx,
1330 // );
1331 // });
1332
1333 // self.tab_bar_context_menu.kind = TabBarContextMenuKind::New;
1334 // }
1335
1336 // fn deploy_tab_context_menu(
1337 // &mut self,
1338 // position: Vector2F,
1339 // target_item_id: usize,
1340 // cx: &mut ViewContext<Self>,
1341 // ) {
1342 // let active_item_id = self.items[self.active_item_index].id();
1343 // let is_active_item = target_item_id == active_item_id;
1344 // let target_pane = cx.weak_handle();
1345
1346 // // 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
1347
1348 // self.tab_context_menu.update(cx, |menu, cx| {
1349 // menu.show(
1350 // position,
1351 // AnchorCorner::TopLeft,
1352 // if is_active_item {
1353 // vec![
1354 // ContextMenuItem::action(
1355 // "Close Active Item",
1356 // CloseActiveItem { save_intent: None },
1357 // ),
1358 // ContextMenuItem::action("Close Inactive Items", CloseInactiveItems),
1359 // ContextMenuItem::action("Close Clean Items", CloseCleanItems),
1360 // ContextMenuItem::action("Close Items To The Left", CloseItemsToTheLeft),
1361 // ContextMenuItem::action("Close Items To The Right", CloseItemsToTheRight),
1362 // ContextMenuItem::action(
1363 // "Close All Items",
1364 // CloseAllItems { save_intent: None },
1365 // ),
1366 // ]
1367 // } else {
1368 // // 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.
1369 // vec![
1370 // ContextMenuItem::handler("Close Inactive Item", {
1371 // let pane = target_pane.clone();
1372 // move |cx| {
1373 // if let Some(pane) = pane.upgrade(cx) {
1374 // pane.update(cx, |pane, cx| {
1375 // pane.close_item_by_id(
1376 // target_item_id,
1377 // SaveIntent::Close,
1378 // cx,
1379 // )
1380 // .detach_and_log_err(cx);
1381 // })
1382 // }
1383 // }
1384 // }),
1385 // ContextMenuItem::action("Close Inactive Items", CloseInactiveItems),
1386 // ContextMenuItem::action("Close Clean Items", CloseCleanItems),
1387 // ContextMenuItem::handler("Close Items To The Left", {
1388 // let pane = target_pane.clone();
1389 // move |cx| {
1390 // if let Some(pane) = pane.upgrade(cx) {
1391 // pane.update(cx, |pane, cx| {
1392 // pane.close_items_to_the_left_by_id(target_item_id, cx)
1393 // .detach_and_log_err(cx);
1394 // })
1395 // }
1396 // }
1397 // }),
1398 // ContextMenuItem::handler("Close Items To The Right", {
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_right_by_id(target_item_id, cx)
1404 // .detach_and_log_err(cx);
1405 // })
1406 // }
1407 // }
1408 // }),
1409 // ContextMenuItem::action(
1410 // "Close All Items",
1411 // CloseAllItems { save_intent: None },
1412 // ),
1413 // ]
1414 // },
1415 // cx,
1416 // );
1417 // });
1418 // }
1419
1420 pub fn toolbar(&self) -> &View<Toolbar> {
1421 &self.toolbar
1422 }
1423
1424 pub fn handle_deleted_project_item(
1425 &mut self,
1426 entry_id: ProjectEntryId,
1427 cx: &mut ViewContext<Pane>,
1428 ) -> Option<()> {
1429 let (item_index_to_delete, item_id) = self.items().enumerate().find_map(|(i, item)| {
1430 if item.is_singleton(cx) && item.project_entry_ids(cx).as_slice() == [entry_id] {
1431 Some((i, item.item_id()))
1432 } else {
1433 None
1434 }
1435 })?;
1436
1437 self.remove_item(item_index_to_delete, false, cx);
1438 self.nav_history.remove_item(item_id);
1439
1440 Some(())
1441 }
1442
1443 fn update_toolbar(&mut self, cx: &mut ViewContext<Self>) {
1444 let active_item = self
1445 .items
1446 .get(self.active_item_index)
1447 .map(|item| item.as_ref());
1448 self.toolbar.update(cx, |toolbar, cx| {
1449 toolbar.set_active_item(active_item, cx);
1450 });
1451 }
1452
1453 fn render_tab(
1454 &self,
1455 ix: usize,
1456 item: &Box<dyn ItemHandle>,
1457 detail: usize,
1458 cx: &mut ViewContext<'_, Pane>,
1459 ) -> impl IntoElement {
1460 let is_active = ix == self.active_item_index;
1461
1462 let label = item.tab_content(Some(detail), is_active, cx);
1463 let close_side = &ItemSettings::get_global(cx).close_position;
1464
1465 let indicator = maybe!({
1466 let indicator_color = match (item.has_conflict(cx), item.is_dirty(cx)) {
1467 (true, _) => Color::Warning,
1468 (_, true) => Color::Accent,
1469 (false, false) => return None,
1470 };
1471
1472 Some(Indicator::dot().color(indicator_color))
1473 });
1474
1475 let item_id = item.item_id();
1476 let is_first_item = ix == 0;
1477 let is_last_item = ix == self.items.len() - 1;
1478 let position_relative_to_active_item = ix.cmp(&self.active_item_index);
1479
1480 let tab = Tab::new(ix)
1481 .position(if is_first_item {
1482 TabPosition::First
1483 } else if is_last_item {
1484 TabPosition::Last
1485 } else {
1486 TabPosition::Middle(position_relative_to_active_item)
1487 })
1488 .close_side(match close_side {
1489 ClosePosition::Left => ui::TabCloseSide::Start,
1490 ClosePosition::Right => ui::TabCloseSide::End,
1491 })
1492 .selected(is_active)
1493 .on_click(
1494 cx.listener(move |pane: &mut Self, _, cx| pane.activate_item(ix, true, true, cx)),
1495 )
1496 .on_drag(
1497 DraggedTab {
1498 pane: cx.view().clone(),
1499 detail,
1500 item_id,
1501 is_active,
1502 ix,
1503 },
1504 |tab, cx| cx.build_view(|_| tab.clone()),
1505 )
1506 .drag_over::<DraggedTab>(|tab| tab.bg(cx.theme().colors().tab_active_background))
1507 .drag_over::<ProjectEntryId>(|tab| tab.bg(gpui::red()))
1508 .on_drop(cx.listener(move |this, dragged_tab: &DraggedTab, cx| {
1509 this.drag_split_direction = None;
1510 this.handle_tab_drop(dragged_tab, ix, cx)
1511 }))
1512 .on_drop(cx.listener(move |this, entry_id: &ProjectEntryId, cx| {
1513 this.drag_split_direction = None;
1514 this.handle_project_entry_drop(entry_id, cx)
1515 }))
1516 .when_some(item.tab_tooltip_text(cx), |tab, text| {
1517 tab.tooltip(move |cx| Tooltip::text(text.clone(), cx))
1518 })
1519 .start_slot::<Indicator>(indicator)
1520 .end_slot(
1521 IconButton::new("close tab", Icon::Close)
1522 .icon_color(Color::Muted)
1523 .size(ButtonSize::None)
1524 .icon_size(IconSize::XSmall)
1525 .on_click(cx.listener(move |pane, _, cx| {
1526 pane.close_item_by_id(item_id, SaveIntent::Close, cx)
1527 .detach_and_log_err(cx);
1528 })),
1529 )
1530 .child(label);
1531
1532 let single_entry_to_resolve = {
1533 let item_entries = self.items[ix].project_entry_ids(cx);
1534 if item_entries.len() == 1 {
1535 Some(item_entries[0])
1536 } else {
1537 None
1538 }
1539 };
1540
1541 right_click_menu(ix).trigger(tab).menu(move |cx| {
1542 ContextMenu::build(cx, |menu, _| {
1543 let menu = menu
1544 .action("Close", CloseActiveItem { save_intent: None }.boxed_clone())
1545 .action("Close Others", CloseInactiveItems.boxed_clone())
1546 .separator()
1547 .action("Close Left", CloseItemsToTheLeft.boxed_clone())
1548 .action("Close Right", CloseItemsToTheRight.boxed_clone())
1549 .separator()
1550 .action("Close Clean", CloseCleanItems.boxed_clone())
1551 .action(
1552 "Close All",
1553 CloseAllItems { save_intent: None }.boxed_clone(),
1554 );
1555
1556 if let Some(entry) = single_entry_to_resolve {
1557 menu.separator().action(
1558 "Reveal In Project Panel",
1559 RevealInProjectPanel {
1560 entry_id: entry.to_proto(),
1561 }
1562 .boxed_clone(),
1563 )
1564 } else {
1565 menu
1566 }
1567 })
1568 })
1569 }
1570
1571 fn render_tab_bar(&mut self, cx: &mut ViewContext<'_, Pane>) -> impl IntoElement {
1572 TabBar::new("tab_bar")
1573 .track_scroll(self.tab_bar_scroll_handle.clone())
1574 .start_child(
1575 IconButton::new("navigate_backward", Icon::ArrowLeft)
1576 .icon_size(IconSize::Small)
1577 .on_click({
1578 let view = cx.view().clone();
1579 move |_, cx| view.update(cx, Self::navigate_backward)
1580 })
1581 .disabled(!self.can_navigate_backward())
1582 .tooltip(|cx| Tooltip::for_action("Go Back", &GoBack, cx)),
1583 )
1584 .start_child(
1585 IconButton::new("navigate_forward", Icon::ArrowRight)
1586 .icon_size(IconSize::Small)
1587 .on_click({
1588 let view = cx.view().clone();
1589 move |_, cx| view.update(cx, Self::navigate_backward)
1590 })
1591 .disabled(!self.can_navigate_forward())
1592 .tooltip(|cx| Tooltip::for_action("Go Forward", &GoForward, cx)),
1593 )
1594 .end_child(
1595 div()
1596 .child(
1597 IconButton::new("plus", Icon::Plus)
1598 .icon_size(IconSize::Small)
1599 .on_click(cx.listener(|this, _, cx| {
1600 let menu = ContextMenu::build(cx, |menu, _| {
1601 menu.action("New File", NewFile.boxed_clone())
1602 .action("New Terminal", NewCenterTerminal.boxed_clone())
1603 .action("New Search", NewSearch.boxed_clone())
1604 });
1605 cx.subscribe(&menu, |this, _, _: &DismissEvent, cx| {
1606 this.focus(cx);
1607 this.new_item_menu = None;
1608 })
1609 .detach();
1610 this.new_item_menu = Some(menu);
1611 }))
1612 .tooltip(|cx| Tooltip::text("New...", cx)),
1613 )
1614 .when_some(self.new_item_menu.as_ref(), |el, new_item_menu| {
1615 el.child(Self::render_menu_overlay(new_item_menu))
1616 }),
1617 )
1618 .end_child(
1619 div()
1620 .child(
1621 IconButton::new("split", Icon::Split)
1622 .icon_size(IconSize::Small)
1623 .on_click(cx.listener(|this, _, cx| {
1624 let menu = ContextMenu::build(cx, |menu, _| {
1625 menu.action("Split Right", SplitRight.boxed_clone())
1626 .action("Split Left", SplitLeft.boxed_clone())
1627 .action("Split Up", SplitUp.boxed_clone())
1628 .action("Split Down", SplitDown.boxed_clone())
1629 });
1630 cx.subscribe(&menu, |this, _, _: &DismissEvent, cx| {
1631 this.focus(cx);
1632 this.split_item_menu = None;
1633 })
1634 .detach();
1635 this.split_item_menu = Some(menu);
1636 }))
1637 .tooltip(|cx| Tooltip::text("Split Pane", cx)),
1638 )
1639 .when_some(self.split_item_menu.as_ref(), |el, split_item_menu| {
1640 el.child(Self::render_menu_overlay(split_item_menu))
1641 }),
1642 )
1643 .children(
1644 self.items
1645 .iter()
1646 .enumerate()
1647 .zip(self.tab_details(cx))
1648 .map(|((ix, item), detail)| self.render_tab(ix, item, detail, cx)),
1649 )
1650 .child(
1651 div()
1652 .min_w_6()
1653 // HACK: This empty child is currently necessary to force the drop traget to appear
1654 // despite us setting a min width above.
1655 .child("")
1656 .h_full()
1657 .flex_grow()
1658 .drag_over::<DraggedTab>(|bar| {
1659 bar.bg(cx.theme().colors().tab_active_background)
1660 })
1661 .drag_over::<ProjectEntryId>(|bar| bar.bg(gpui::red()))
1662 .on_drop(cx.listener(move |this, dragged_tab: &DraggedTab, cx| {
1663 this.drag_split_direction = None;
1664 this.handle_tab_drop(dragged_tab, this.items.len(), cx)
1665 }))
1666 .on_drop(cx.listener(move |this, entry_id: &ProjectEntryId, cx| {
1667 this.drag_split_direction = None;
1668 this.handle_project_entry_drop(entry_id, cx)
1669 })),
1670 )
1671 }
1672
1673 fn render_menu_overlay(menu: &View<ContextMenu>) -> Div {
1674 div()
1675 .absolute()
1676 .z_index(1)
1677 .bottom_0()
1678 .right_0()
1679 .size_0()
1680 .child(overlay().anchor(AnchorCorner::TopRight).child(menu.clone()))
1681 }
1682
1683 fn tab_details(&self, cx: &AppContext) -> Vec<usize> {
1684 let mut tab_details = self.items.iter().map(|_| 0).collect::<Vec<_>>();
1685
1686 let mut tab_descriptions = HashMap::default();
1687 let mut done = false;
1688 while !done {
1689 done = true;
1690
1691 // Store item indices by their tab description.
1692 for (ix, (item, detail)) in self.items.iter().zip(&tab_details).enumerate() {
1693 if let Some(description) = item.tab_description(*detail, cx) {
1694 if *detail == 0
1695 || Some(&description) != item.tab_description(detail - 1, cx).as_ref()
1696 {
1697 tab_descriptions
1698 .entry(description)
1699 .or_insert(Vec::new())
1700 .push(ix);
1701 }
1702 }
1703 }
1704
1705 // If two or more items have the same tab description, increase eir level
1706 // of detail and try again.
1707 for (_, item_ixs) in tab_descriptions.drain() {
1708 if item_ixs.len() > 1 {
1709 done = false;
1710 for ix in item_ixs {
1711 tab_details[ix] += 1;
1712 }
1713 }
1714 }
1715 }
1716
1717 tab_details
1718 }
1719
1720 pub fn set_zoomed(&mut self, zoomed: bool, cx: &mut ViewContext<Self>) {
1721 self.zoomed = zoomed;
1722 cx.notify();
1723 }
1724
1725 pub fn is_zoomed(&self) -> bool {
1726 self.zoomed
1727 }
1728
1729 fn handle_drag_move<T>(&mut self, event: &DragMoveEvent<T>, cx: &mut ViewContext<Self>) {
1730 let edge_width = cx.rem_size() * 8;
1731 let cursor = event.event.position;
1732 let direction = if cursor.x < event.bounds.left() + edge_width {
1733 Some(SplitDirection::Left)
1734 } else if cursor.x > event.bounds.right() - edge_width {
1735 Some(SplitDirection::Right)
1736 } else if cursor.y < event.bounds.top() + edge_width {
1737 Some(SplitDirection::Up)
1738 } else if cursor.y > event.bounds.bottom() - edge_width {
1739 Some(SplitDirection::Down)
1740 } else {
1741 None
1742 };
1743 if direction != self.drag_split_direction {
1744 self.drag_split_direction = direction;
1745 cx.notify();
1746 }
1747 }
1748
1749 fn handle_tab_drop(
1750 &mut self,
1751 dragged_tab: &DraggedTab,
1752 ix: usize,
1753 cx: &mut ViewContext<'_, Pane>,
1754 ) {
1755 let mut to_pane = cx.view().clone();
1756 let split_direction = self.drag_split_direction;
1757 let item_id = dragged_tab.item_id;
1758 let from_pane = dragged_tab.pane.clone();
1759 self.workspace
1760 .update(cx, |_, cx| {
1761 cx.defer(move |workspace, cx| {
1762 if let Some(split_direction) = split_direction {
1763 to_pane = workspace.split_pane(to_pane, split_direction, cx);
1764 }
1765 workspace.move_item(from_pane, to_pane, item_id, ix, cx);
1766 });
1767 })
1768 .log_err();
1769 }
1770
1771 fn handle_project_entry_drop(
1772 &mut self,
1773 project_entry_id: &ProjectEntryId,
1774 cx: &mut ViewContext<'_, Pane>,
1775 ) {
1776 let mut to_pane = cx.view().clone();
1777 let split_direction = self.drag_split_direction;
1778 let project_entry_id = *project_entry_id;
1779 self.workspace
1780 .update(cx, |_, cx| {
1781 cx.defer(move |workspace, cx| {
1782 if let Some(path) = workspace
1783 .project()
1784 .read(cx)
1785 .path_for_entry(project_entry_id, cx)
1786 {
1787 if let Some(split_direction) = split_direction {
1788 to_pane = workspace.split_pane(to_pane, split_direction, cx);
1789 }
1790 workspace
1791 .open_path(path, Some(to_pane.downgrade()), true, cx)
1792 .detach_and_log_err(cx);
1793 }
1794 });
1795 })
1796 .log_err();
1797 }
1798}
1799
1800impl FocusableView for Pane {
1801 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
1802 self.focus_handle.clone()
1803 }
1804}
1805
1806impl Render for Pane {
1807 type Element = Focusable<Div>;
1808
1809 fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
1810 let mut drag_target_color = cx.theme().colors().text;
1811 drag_target_color.a = 0.5;
1812
1813 v_stack()
1814 .key_context("Pane")
1815 .track_focus(&self.focus_handle)
1816 .size_full()
1817 .flex_none()
1818 .overflow_hidden()
1819 .on_action(cx.listener(|pane, _: &SplitLeft, cx| pane.split(SplitDirection::Left, cx)))
1820 .on_action(cx.listener(|pane, _: &SplitUp, cx| pane.split(SplitDirection::Up, cx)))
1821 .on_action(
1822 cx.listener(|pane, _: &SplitRight, cx| pane.split(SplitDirection::Right, cx)),
1823 )
1824 .on_action(cx.listener(|pane, _: &SplitDown, cx| pane.split(SplitDirection::Down, cx)))
1825 .on_action(cx.listener(|pane, _: &GoBack, cx| pane.navigate_backward(cx)))
1826 .on_action(cx.listener(|pane, _: &GoForward, cx| pane.navigate_forward(cx)))
1827 .on_action(cx.listener(Pane::toggle_zoom))
1828 .on_action(cx.listener(|pane: &mut Pane, action: &ActivateItem, cx| {
1829 pane.activate_item(action.0, true, true, cx);
1830 }))
1831 .on_action(cx.listener(|pane: &mut Pane, _: &ActivateLastItem, cx| {
1832 pane.activate_item(pane.items.len() - 1, true, true, cx);
1833 }))
1834 .on_action(cx.listener(|pane: &mut Pane, _: &ActivatePrevItem, cx| {
1835 pane.activate_prev_item(true, cx);
1836 }))
1837 .on_action(cx.listener(|pane: &mut Pane, _: &ActivateNextItem, cx| {
1838 pane.activate_next_item(true, cx);
1839 }))
1840 .on_action(
1841 cx.listener(|pane: &mut Self, action: &CloseActiveItem, cx| {
1842 pane.close_active_item(action, cx)
1843 .map(|task| task.detach_and_log_err(cx));
1844 }),
1845 )
1846 .on_action(
1847 cx.listener(|pane: &mut Self, action: &CloseInactiveItems, cx| {
1848 pane.close_inactive_items(action, cx)
1849 .map(|task| task.detach_and_log_err(cx));
1850 }),
1851 )
1852 .on_action(
1853 cx.listener(|pane: &mut Self, action: &CloseCleanItems, cx| {
1854 pane.close_clean_items(action, cx)
1855 .map(|task| task.detach_and_log_err(cx));
1856 }),
1857 )
1858 .on_action(
1859 cx.listener(|pane: &mut Self, action: &CloseItemsToTheLeft, cx| {
1860 pane.close_items_to_the_left(action, cx)
1861 .map(|task| task.detach_and_log_err(cx));
1862 }),
1863 )
1864 .on_action(
1865 cx.listener(|pane: &mut Self, action: &CloseItemsToTheRight, cx| {
1866 pane.close_items_to_the_right(action, cx)
1867 .map(|task| task.detach_and_log_err(cx));
1868 }),
1869 )
1870 .on_action(cx.listener(|pane: &mut Self, action: &CloseAllItems, cx| {
1871 pane.close_all_items(action, cx)
1872 .map(|task| task.detach_and_log_err(cx));
1873 }))
1874 .on_action(
1875 cx.listener(|pane: &mut Self, action: &CloseActiveItem, cx| {
1876 pane.close_active_item(action, cx)
1877 .map(|task| task.detach_and_log_err(cx));
1878 }),
1879 )
1880 .on_action(
1881 cx.listener(|pane: &mut Self, action: &RevealInProjectPanel, cx| {
1882 pane.project.update(cx, |_, cx| {
1883 cx.emit(project::Event::RevealInProjectPanel(
1884 ProjectEntryId::from_proto(action.entry_id),
1885 ))
1886 })
1887 }),
1888 )
1889 .child(self.render_tab_bar(cx))
1890 .child(
1891 // main content
1892 div()
1893 .flex_1()
1894 .relative()
1895 .group("")
1896 .on_drag_move::<DraggedTab>(cx.listener(Self::handle_drag_move))
1897 .on_drag_move::<ProjectEntryId>(cx.listener(Self::handle_drag_move))
1898 .map(|div| {
1899 if let Some(item) = self.active_item() {
1900 div.flex_col()
1901 .child(self.toolbar.clone())
1902 .child(item.to_any())
1903 } else {
1904 div.flex()
1905 .flex_row()
1906 .items_center()
1907 .size_full()
1908 .justify_center()
1909 .child(
1910 Label::new("Open a file or project to get started.")
1911 .color(Color::Muted),
1912 )
1913 }
1914 })
1915 .child(
1916 // drag target
1917 div()
1918 .invisible()
1919 .absolute()
1920 .bg(drag_target_color)
1921 .group_drag_over::<DraggedTab>("", |style| style.visible())
1922 .group_drag_over::<ProjectEntryId>("", |style| style.visible())
1923 .on_drop(cx.listener(move |this, dragged_tab, cx| {
1924 this.handle_tab_drop(dragged_tab, this.active_item_index(), cx)
1925 }))
1926 .on_drop(cx.listener(move |this, entry_id, cx| {
1927 this.handle_project_entry_drop(entry_id, cx)
1928 }))
1929 .map(|div| match self.drag_split_direction {
1930 None => div.top_0().left_0().right_0().bottom_0(),
1931 Some(SplitDirection::Up) => div.top_0().left_0().right_0().h_32(),
1932 Some(SplitDirection::Down) => {
1933 div.left_0().bottom_0().right_0().h_32()
1934 }
1935 Some(SplitDirection::Left) => {
1936 div.top_0().left_0().bottom_0().w_32()
1937 }
1938 Some(SplitDirection::Right) => {
1939 div.top_0().bottom_0().right_0().w_32()
1940 }
1941 }),
1942 ),
1943 )
1944 .on_mouse_down(
1945 MouseButton::Navigate(NavigationDirection::Back),
1946 cx.listener(|pane, _, cx| {
1947 if let Some(workspace) = pane.workspace.upgrade() {
1948 let pane = cx.view().downgrade();
1949 cx.window_context().defer(move |cx| {
1950 workspace.update(cx, |workspace, cx| {
1951 workspace.go_back(pane, cx).detach_and_log_err(cx)
1952 })
1953 })
1954 }
1955 }),
1956 )
1957 .on_mouse_down(
1958 MouseButton::Navigate(NavigationDirection::Forward),
1959 cx.listener(|pane, _, cx| {
1960 if let Some(workspace) = pane.workspace.upgrade() {
1961 let pane = cx.view().downgrade();
1962 cx.window_context().defer(move |cx| {
1963 workspace.update(cx, |workspace, cx| {
1964 workspace.go_forward(pane, cx).detach_and_log_err(cx)
1965 })
1966 })
1967 }
1968 }),
1969 )
1970 }
1971
1972 // fn focus_in(&mut self, focused: AnyViewHandle, cx: &mut ViewContext<Self>) {
1973 // if !self.has_focus {
1974 // self.has_focus = true;
1975 // cx.emit(Event::Focus);
1976 // cx.notify();
1977 // }
1978
1979 // self.toolbar.update(cx, |toolbar, cx| {
1980 // toolbar.focus_changed(true, cx);
1981 // });
1982
1983 // if let Some(active_item) = self.active_item() {
1984 // if cx.is_self_focused() {
1985 // // Pane was focused directly. We need to either focus a view inside the active item,
1986 // // or focus the active item itself
1987 // if let Some(weak_last_focused_view) =
1988 // self.last_focused_view_by_item.get(&active_item.id())
1989 // {
1990 // if let Some(last_focused_view) = weak_last_focused_view.upgrade(cx) {
1991 // cx.focus(&last_focused_view);
1992 // return;
1993 // } else {
1994 // self.last_focused_view_by_item.remove(&active_item.id());
1995 // }
1996 // }
1997
1998 // cx.focus(active_item.as_any());
1999 // } else if focused != self.tab_bar_context_menu.handle {
2000 // self.last_focused_view_by_item
2001 // .insert(active_item.id(), focused.downgrade());
2002 // }
2003 // }
2004 // }
2005
2006 // fn focus_out(&mut self, _: AnyViewHandle, cx: &mut ViewContext<Self>) {
2007 // self.has_focus = false;
2008 // self.toolbar.update(cx, |toolbar, cx| {
2009 // toolbar.focus_changed(false, cx);
2010 // });
2011 // cx.notify();
2012 // }
2013
2014 // fn update_keymap_context(&self, keymap: &mut KeymapContext, _: &AppContext) {
2015 // Self::reset_to_default_keymap_context(keymap);
2016 // }
2017}
2018
2019impl ItemNavHistory {
2020 pub fn push<D: 'static + Send + Any>(&mut self, data: Option<D>, cx: &mut WindowContext) {
2021 self.history.push(data, self.item.clone(), cx);
2022 }
2023
2024 pub fn pop_backward(&mut self, cx: &mut WindowContext) -> Option<NavigationEntry> {
2025 self.history.pop(NavigationMode::GoingBack, cx)
2026 }
2027
2028 pub fn pop_forward(&mut self, cx: &mut WindowContext) -> Option<NavigationEntry> {
2029 self.history.pop(NavigationMode::GoingForward, cx)
2030 }
2031}
2032
2033impl NavHistory {
2034 pub fn for_each_entry(
2035 &self,
2036 cx: &AppContext,
2037 mut f: impl FnMut(&NavigationEntry, (ProjectPath, Option<PathBuf>)),
2038 ) {
2039 let borrowed_history = self.0.lock();
2040 borrowed_history
2041 .forward_stack
2042 .iter()
2043 .chain(borrowed_history.backward_stack.iter())
2044 .chain(borrowed_history.closed_stack.iter())
2045 .for_each(|entry| {
2046 if let Some(project_and_abs_path) =
2047 borrowed_history.paths_by_item.get(&entry.item.id())
2048 {
2049 f(entry, project_and_abs_path.clone());
2050 } else if let Some(item) = entry.item.upgrade() {
2051 if let Some(path) = item.project_path(cx) {
2052 f(entry, (path, None));
2053 }
2054 }
2055 })
2056 }
2057
2058 pub fn set_mode(&mut self, mode: NavigationMode) {
2059 self.0.lock().mode = mode;
2060 }
2061
2062 pub fn mode(&self) -> NavigationMode {
2063 self.0.lock().mode
2064 }
2065
2066 pub fn disable(&mut self) {
2067 self.0.lock().mode = NavigationMode::Disabled;
2068 }
2069
2070 pub fn enable(&mut self) {
2071 self.0.lock().mode = NavigationMode::Normal;
2072 }
2073
2074 pub fn pop(&mut self, mode: NavigationMode, cx: &mut WindowContext) -> Option<NavigationEntry> {
2075 let mut state = self.0.lock();
2076 let entry = match mode {
2077 NavigationMode::Normal | NavigationMode::Disabled | NavigationMode::ClosingItem => {
2078 return None
2079 }
2080 NavigationMode::GoingBack => &mut state.backward_stack,
2081 NavigationMode::GoingForward => &mut state.forward_stack,
2082 NavigationMode::ReopeningClosedItem => &mut state.closed_stack,
2083 }
2084 .pop_back();
2085 if entry.is_some() {
2086 state.did_update(cx);
2087 }
2088 entry
2089 }
2090
2091 pub fn push<D: 'static + Send + Any>(
2092 &mut self,
2093 data: Option<D>,
2094 item: Arc<dyn WeakItemHandle>,
2095 cx: &mut WindowContext,
2096 ) {
2097 let state = &mut *self.0.lock();
2098 match state.mode {
2099 NavigationMode::Disabled => {}
2100 NavigationMode::Normal | NavigationMode::ReopeningClosedItem => {
2101 if state.backward_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2102 state.backward_stack.pop_front();
2103 }
2104 state.backward_stack.push_back(NavigationEntry {
2105 item,
2106 data: data.map(|data| Box::new(data) as Box<dyn Any + Send>),
2107 timestamp: state.next_timestamp.fetch_add(1, Ordering::SeqCst),
2108 });
2109 state.forward_stack.clear();
2110 }
2111 NavigationMode::GoingBack => {
2112 if state.forward_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2113 state.forward_stack.pop_front();
2114 }
2115 state.forward_stack.push_back(NavigationEntry {
2116 item,
2117 data: data.map(|data| Box::new(data) as Box<dyn Any + Send>),
2118 timestamp: state.next_timestamp.fetch_add(1, Ordering::SeqCst),
2119 });
2120 }
2121 NavigationMode::GoingForward => {
2122 if state.backward_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2123 state.backward_stack.pop_front();
2124 }
2125 state.backward_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::ClosingItem => {
2132 if state.closed_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2133 state.closed_stack.pop_front();
2134 }
2135 state.closed_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 }
2142 state.did_update(cx);
2143 }
2144
2145 pub fn remove_item(&mut self, item_id: EntityId) {
2146 let mut state = self.0.lock();
2147 state.paths_by_item.remove(&item_id);
2148 state
2149 .backward_stack
2150 .retain(|entry| entry.item.id() != item_id);
2151 state
2152 .forward_stack
2153 .retain(|entry| entry.item.id() != item_id);
2154 state
2155 .closed_stack
2156 .retain(|entry| entry.item.id() != item_id);
2157 }
2158
2159 pub fn path_for_item(&self, item_id: EntityId) -> Option<(ProjectPath, Option<PathBuf>)> {
2160 self.0.lock().paths_by_item.get(&item_id).cloned()
2161 }
2162}
2163
2164impl NavHistoryState {
2165 pub fn did_update(&self, cx: &mut WindowContext) {
2166 if let Some(pane) = self.pane.upgrade() {
2167 cx.defer(move |cx| {
2168 pane.update(cx, |pane, cx| pane.history_updated(cx));
2169 });
2170 }
2171 }
2172}
2173
2174// pub struct PaneBackdrop<V> {
2175// child_view: usize,
2176// child: AnyElement<V>,
2177// }
2178
2179// impl<V> PaneBackdrop<V> {
2180// pub fn new(pane_item_view: usize, child: AnyElement<V>) -> Self {
2181// PaneBackdrop {
2182// child,
2183// child_view: pane_item_view,
2184// }
2185// }
2186// }
2187
2188// impl<V: 'static> Element<V> for PaneBackdrop<V> {
2189// type LayoutState = ();
2190
2191// type PaintState = ();
2192
2193// fn layout(
2194// &mut self,
2195// constraint: gpui::SizeConstraint,
2196// view: &mut V,
2197// cx: &mut ViewContext<V>,
2198// ) -> (Vector2F, Self::LayoutState) {
2199// let size = self.child.layout(constraint, view, cx);
2200// (size, ())
2201// }
2202
2203// fn paint(
2204// &mut self,
2205// bounds: RectF,
2206// visible_bounds: RectF,
2207// _: &mut Self::LayoutState,
2208// view: &mut V,
2209// cx: &mut ViewContext<V>,
2210// ) -> Self::PaintState {
2211// let background = theme::current(cx).editor.background;
2212
2213// let visible_bounds = bounds.intersection(visible_bounds).unwrap_or_default();
2214
2215// cx.scene().push_quad(gpui::Quad {
2216// bounds: RectF::new(bounds.origin(), bounds.size()),
2217// background: Some(background),
2218// ..Default::default()
2219// });
2220
2221// let child_view_id = self.child_view;
2222// cx.scene().push_mouse_region(
2223// MouseRegion::new::<Self>(child_view_id, 0, visible_bounds).on_down(
2224// gpui::platform::MouseButton::Left,
2225// move |_, _: &mut V, cx| {
2226// let window = cx.window();
2227// cx.app_context().focus(window, Some(child_view_id))
2228// },
2229// ),
2230// );
2231
2232// cx.scene().push_layer(Some(bounds));
2233// self.child.paint(bounds.origin(), visible_bounds, view, cx);
2234// cx.scene().pop_layer();
2235// }
2236
2237// fn rect_for_text_range(
2238// &self,
2239// range_utf16: std::ops::Range<usize>,
2240// _bounds: RectF,
2241// _visible_bounds: RectF,
2242// _layout: &Self::LayoutState,
2243// _paint: &Self::PaintState,
2244// view: &V,
2245// cx: &gpui::ViewContext<V>,
2246// ) -> Option<RectF> {
2247// self.child.rect_for_text_range(range_utf16, view, cx)
2248// }
2249
2250// fn debug(
2251// &self,
2252// _bounds: RectF,
2253// _layout: &Self::LayoutState,
2254// _paint: &Self::PaintState,
2255// view: &V,
2256// cx: &gpui::ViewContext<V>,
2257// ) -> serde_json::Value {
2258// gpui::json::json!({
2259// "type": "Pane Back Drop",
2260// "view": self.child_view,
2261// "child": self.child.debug(view, cx),
2262// })
2263// }
2264// }
2265
2266fn dirty_message_for(buffer_path: Option<ProjectPath>) -> String {
2267 let path = buffer_path
2268 .as_ref()
2269 .and_then(|p| p.path.to_str())
2270 .unwrap_or(&"This buffer");
2271 let path = truncate_and_remove_front(path, 80);
2272 format!("{path} contains unsaved edits. Do you want to save it?")
2273}
2274
2275// todo!("uncomment tests")
2276// #[cfg(test)]
2277// mod tests {
2278// use super::*;
2279// use crate::item::test::{TestItem, TestProjectItem};
2280// use gpui::TestAppContext;
2281// use project::FakeFs;
2282// use settings::SettingsStore;
2283
2284// #[gpui::test]
2285// async fn test_remove_active_empty(cx: &mut TestAppContext) {
2286// init_test(cx);
2287// let fs = FakeFs::new(cx.background());
2288
2289// let project = Project::test(fs, None, cx).await;
2290// let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
2291// let workspace = window.root(cx);
2292// let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
2293
2294// pane.update(cx, |pane, cx| {
2295// assert!(pane
2296// .close_active_item(&CloseActiveItem { save_intent: None }, cx)
2297// .is_none())
2298// });
2299// }
2300
2301// #[gpui::test]
2302// async fn test_add_item_with_new_item(cx: &mut TestAppContext) {
2303// cx.foreground().forbid_parking();
2304// init_test(cx);
2305// let fs = FakeFs::new(cx.background());
2306
2307// let project = Project::test(fs, None, cx).await;
2308// let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
2309// let workspace = window.root(cx);
2310// let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
2311
2312// // 1. Add with a destination index
2313// // a. Add before the active item
2314// set_labeled_items(&pane, ["A", "B*", "C"], cx);
2315// pane.update(cx, |pane, cx| {
2316// pane.add_item(
2317// Box::new(cx.add_view(|_| TestItem::new().with_label("D"))),
2318// false,
2319// false,
2320// Some(0),
2321// cx,
2322// );
2323// });
2324// assert_item_labels(&pane, ["D*", "A", "B", "C"], cx);
2325
2326// // b. Add after the active item
2327// set_labeled_items(&pane, ["A", "B*", "C"], cx);
2328// pane.update(cx, |pane, cx| {
2329// pane.add_item(
2330// Box::new(cx.add_view(|_| TestItem::new().with_label("D"))),
2331// false,
2332// false,
2333// Some(2),
2334// cx,
2335// );
2336// });
2337// assert_item_labels(&pane, ["A", "B", "D*", "C"], cx);
2338
2339// // c. Add at the end of the item list (including off the length)
2340// set_labeled_items(&pane, ["A", "B*", "C"], cx);
2341// pane.update(cx, |pane, cx| {
2342// pane.add_item(
2343// Box::new(cx.add_view(|_| TestItem::new().with_label("D"))),
2344// false,
2345// false,
2346// Some(5),
2347// cx,
2348// );
2349// });
2350// assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2351
2352// // 2. Add without a destination index
2353// // a. Add with active item at the start of the item list
2354// set_labeled_items(&pane, ["A*", "B", "C"], cx);
2355// pane.update(cx, |pane, cx| {
2356// pane.add_item(
2357// Box::new(cx.add_view(|_| TestItem::new().with_label("D"))),
2358// false,
2359// false,
2360// None,
2361// cx,
2362// );
2363// });
2364// set_labeled_items(&pane, ["A", "D*", "B", "C"], cx);
2365
2366// // b. Add with active item at the end of the item list
2367// set_labeled_items(&pane, ["A", "B", "C*"], cx);
2368// pane.update(cx, |pane, cx| {
2369// pane.add_item(
2370// Box::new(cx.add_view(|_| TestItem::new().with_label("D"))),
2371// false,
2372// false,
2373// None,
2374// cx,
2375// );
2376// });
2377// assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2378// }
2379
2380// #[gpui::test]
2381// async fn test_add_item_with_existing_item(cx: &mut TestAppContext) {
2382// cx.foreground().forbid_parking();
2383// init_test(cx);
2384// let fs = FakeFs::new(cx.background());
2385
2386// let project = Project::test(fs, None, cx).await;
2387// let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
2388// let workspace = window.root(cx);
2389// let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
2390
2391// // 1. Add with a destination index
2392// // 1a. Add before the active item
2393// let [_, _, _, d] = set_labeled_items(&pane, ["A", "B*", "C", "D"], cx);
2394// pane.update(cx, |pane, cx| {
2395// pane.add_item(d, false, false, Some(0), cx);
2396// });
2397// assert_item_labels(&pane, ["D*", "A", "B", "C"], cx);
2398
2399// // 1b. Add after the active item
2400// let [_, _, _, d] = set_labeled_items(&pane, ["A", "B*", "C", "D"], cx);
2401// pane.update(cx, |pane, cx| {
2402// pane.add_item(d, false, false, Some(2), cx);
2403// });
2404// assert_item_labels(&pane, ["A", "B", "D*", "C"], cx);
2405
2406// // 1c. Add at the end of the item list (including off the length)
2407// let [a, _, _, _] = set_labeled_items(&pane, ["A", "B*", "C", "D"], cx);
2408// pane.update(cx, |pane, cx| {
2409// pane.add_item(a, false, false, Some(5), cx);
2410// });
2411// assert_item_labels(&pane, ["B", "C", "D", "A*"], cx);
2412
2413// // 1d. Add same item to active index
2414// let [_, b, _] = set_labeled_items(&pane, ["A", "B*", "C"], cx);
2415// pane.update(cx, |pane, cx| {
2416// pane.add_item(b, false, false, Some(1), cx);
2417// });
2418// assert_item_labels(&pane, ["A", "B*", "C"], cx);
2419
2420// // 1e. Add item to index after same item in last position
2421// let [_, _, c] = set_labeled_items(&pane, ["A", "B*", "C"], cx);
2422// pane.update(cx, |pane, cx| {
2423// pane.add_item(c, false, false, Some(2), cx);
2424// });
2425// assert_item_labels(&pane, ["A", "B", "C*"], cx);
2426
2427// // 2. Add without a destination index
2428// // 2a. Add with active item at the start of the item list
2429// let [_, _, _, d] = set_labeled_items(&pane, ["A*", "B", "C", "D"], cx);
2430// pane.update(cx, |pane, cx| {
2431// pane.add_item(d, false, false, None, cx);
2432// });
2433// assert_item_labels(&pane, ["A", "D*", "B", "C"], cx);
2434
2435// // 2b. Add with active item at the end of the item list
2436// let [a, _, _, _] = set_labeled_items(&pane, ["A", "B", "C", "D*"], cx);
2437// pane.update(cx, |pane, cx| {
2438// pane.add_item(a, false, false, None, cx);
2439// });
2440// assert_item_labels(&pane, ["B", "C", "D", "A*"], cx);
2441
2442// // 2c. Add active item to active item at end of list
2443// let [_, _, c] = set_labeled_items(&pane, ["A", "B", "C*"], cx);
2444// pane.update(cx, |pane, cx| {
2445// pane.add_item(c, false, false, None, cx);
2446// });
2447// assert_item_labels(&pane, ["A", "B", "C*"], cx);
2448
2449// // 2d. Add active item to active item at start of list
2450// let [a, _, _] = set_labeled_items(&pane, ["A*", "B", "C"], cx);
2451// pane.update(cx, |pane, cx| {
2452// pane.add_item(a, false, false, None, cx);
2453// });
2454// assert_item_labels(&pane, ["A*", "B", "C"], cx);
2455// }
2456
2457// #[gpui::test]
2458// async fn test_add_item_with_same_project_entries(cx: &mut TestAppContext) {
2459// cx.foreground().forbid_parking();
2460// init_test(cx);
2461// let fs = FakeFs::new(cx.background());
2462
2463// let project = Project::test(fs, None, cx).await;
2464// let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
2465// let workspace = window.root(cx);
2466// let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
2467
2468// // singleton view
2469// pane.update(cx, |pane, cx| {
2470// let item = TestItem::new()
2471// .with_singleton(true)
2472// .with_label("buffer 1")
2473// .with_project_items(&[TestProjectItem::new(1, "one.txt", cx)]);
2474
2475// pane.add_item(Box::new(cx.add_view(|_| item)), false, false, None, cx);
2476// });
2477// assert_item_labels(&pane, ["buffer 1*"], cx);
2478
2479// // new singleton view with the same project entry
2480// pane.update(cx, |pane, cx| {
2481// let item = TestItem::new()
2482// .with_singleton(true)
2483// .with_label("buffer 1")
2484// .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)]);
2485
2486// pane.add_item(Box::new(cx.add_view(|_| item)), false, false, None, cx);
2487// });
2488// assert_item_labels(&pane, ["buffer 1*"], cx);
2489
2490// // new singleton view with different project entry
2491// pane.update(cx, |pane, cx| {
2492// let item = TestItem::new()
2493// .with_singleton(true)
2494// .with_label("buffer 2")
2495// .with_project_items(&[TestProjectItem::new(2, "2.txt", cx)]);
2496// pane.add_item(Box::new(cx.add_view(|_| item)), false, false, None, cx);
2497// });
2498// assert_item_labels(&pane, ["buffer 1", "buffer 2*"], cx);
2499
2500// // new multibuffer view with the same project entry
2501// pane.update(cx, |pane, cx| {
2502// let item = TestItem::new()
2503// .with_singleton(false)
2504// .with_label("multibuffer 1")
2505// .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)]);
2506
2507// pane.add_item(Box::new(cx.add_view(|_| item)), false, false, None, cx);
2508// });
2509// assert_item_labels(&pane, ["buffer 1", "buffer 2", "multibuffer 1*"], cx);
2510
2511// // another multibuffer view with the same project entry
2512// pane.update(cx, |pane, cx| {
2513// let item = TestItem::new()
2514// .with_singleton(false)
2515// .with_label("multibuffer 1b")
2516// .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)]);
2517
2518// pane.add_item(Box::new(cx.add_view(|_| item)), false, false, None, cx);
2519// });
2520// assert_item_labels(
2521// &pane,
2522// ["buffer 1", "buffer 2", "multibuffer 1", "multibuffer 1b*"],
2523// cx,
2524// );
2525// }
2526
2527// #[gpui::test]
2528// async fn test_remove_item_ordering(cx: &mut TestAppContext) {
2529// init_test(cx);
2530// let fs = FakeFs::new(cx.background());
2531
2532// let project = Project::test(fs, None, cx).await;
2533// let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
2534// let workspace = window.root(cx);
2535// let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
2536
2537// add_labeled_item(&pane, "A", false, cx);
2538// add_labeled_item(&pane, "B", false, cx);
2539// add_labeled_item(&pane, "C", false, cx);
2540// add_labeled_item(&pane, "D", false, cx);
2541// assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2542
2543// pane.update(cx, |pane, cx| pane.activate_item(1, false, false, cx));
2544// add_labeled_item(&pane, "1", false, cx);
2545// assert_item_labels(&pane, ["A", "B", "1*", "C", "D"], cx);
2546
2547// pane.update(cx, |pane, cx| {
2548// pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2549// })
2550// .unwrap()
2551// .await
2552// .unwrap();
2553// assert_item_labels(&pane, ["A", "B*", "C", "D"], cx);
2554
2555// pane.update(cx, |pane, cx| pane.activate_item(3, false, false, cx));
2556// assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2557
2558// pane.update(cx, |pane, cx| {
2559// pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2560// })
2561// .unwrap()
2562// .await
2563// .unwrap();
2564// assert_item_labels(&pane, ["A", "B*", "C"], cx);
2565
2566// pane.update(cx, |pane, cx| {
2567// pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2568// })
2569// .unwrap()
2570// .await
2571// .unwrap();
2572// assert_item_labels(&pane, ["A", "C*"], cx);
2573
2574// pane.update(cx, |pane, cx| {
2575// pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2576// })
2577// .unwrap()
2578// .await
2579// .unwrap();
2580// assert_item_labels(&pane, ["A*"], cx);
2581// }
2582
2583// #[gpui::test]
2584// async fn test_close_inactive_items(cx: &mut TestAppContext) {
2585// init_test(cx);
2586// let fs = FakeFs::new(cx.background());
2587
2588// let project = Project::test(fs, None, cx).await;
2589// let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
2590// let workspace = window.root(cx);
2591// let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
2592
2593// set_labeled_items(&pane, ["A", "B", "C*", "D", "E"], cx);
2594
2595// pane.update(cx, |pane, cx| {
2596// pane.close_inactive_items(&CloseInactiveItems, cx)
2597// })
2598// .unwrap()
2599// .await
2600// .unwrap();
2601// assert_item_labels(&pane, ["C*"], cx);
2602// }
2603
2604// #[gpui::test]
2605// async fn test_close_clean_items(cx: &mut TestAppContext) {
2606// init_test(cx);
2607// let fs = FakeFs::new(cx.background());
2608
2609// let project = Project::test(fs, None, cx).await;
2610// let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
2611// let workspace = window.root(cx);
2612// let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
2613
2614// add_labeled_item(&pane, "A", true, cx);
2615// add_labeled_item(&pane, "B", false, cx);
2616// add_labeled_item(&pane, "C", true, cx);
2617// add_labeled_item(&pane, "D", false, cx);
2618// add_labeled_item(&pane, "E", false, cx);
2619// assert_item_labels(&pane, ["A^", "B", "C^", "D", "E*"], cx);
2620
2621// pane.update(cx, |pane, cx| pane.close_clean_items(&CloseCleanItems, cx))
2622// .unwrap()
2623// .await
2624// .unwrap();
2625// assert_item_labels(&pane, ["A^", "C*^"], cx);
2626// }
2627
2628// #[gpui::test]
2629// async fn test_close_items_to_the_left(cx: &mut TestAppContext) {
2630// init_test(cx);
2631// let fs = FakeFs::new(cx.background());
2632
2633// let project = Project::test(fs, None, cx).await;
2634// let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
2635// let workspace = window.root(cx);
2636// let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
2637
2638// set_labeled_items(&pane, ["A", "B", "C*", "D", "E"], cx);
2639
2640// pane.update(cx, |pane, cx| {
2641// pane.close_items_to_the_left(&CloseItemsToTheLeft, cx)
2642// })
2643// .unwrap()
2644// .await
2645// .unwrap();
2646// assert_item_labels(&pane, ["C*", "D", "E"], cx);
2647// }
2648
2649// #[gpui::test]
2650// async fn test_close_items_to_the_right(cx: &mut TestAppContext) {
2651// init_test(cx);
2652// let fs = FakeFs::new(cx.background());
2653
2654// let project = Project::test(fs, None, cx).await;
2655// let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
2656// let workspace = window.root(cx);
2657// let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
2658
2659// set_labeled_items(&pane, ["A", "B", "C*", "D", "E"], cx);
2660
2661// pane.update(cx, |pane, cx| {
2662// pane.close_items_to_the_right(&CloseItemsToTheRight, cx)
2663// })
2664// .unwrap()
2665// .await
2666// .unwrap();
2667// assert_item_labels(&pane, ["A", "B", "C*"], cx);
2668// }
2669
2670// #[gpui::test]
2671// async fn test_close_all_items(cx: &mut TestAppContext) {
2672// init_test(cx);
2673// let fs = FakeFs::new(cx.background());
2674
2675// let project = Project::test(fs, None, cx).await;
2676// let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
2677// let workspace = window.root(cx);
2678// let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
2679
2680// add_labeled_item(&pane, "A", false, cx);
2681// add_labeled_item(&pane, "B", false, cx);
2682// add_labeled_item(&pane, "C", false, cx);
2683// assert_item_labels(&pane, ["A", "B", "C*"], cx);
2684
2685// pane.update(cx, |pane, cx| {
2686// pane.close_all_items(&CloseAllItems { save_intent: None }, cx)
2687// })
2688// .unwrap()
2689// .await
2690// .unwrap();
2691// assert_item_labels(&pane, [], cx);
2692
2693// add_labeled_item(&pane, "A", true, cx);
2694// add_labeled_item(&pane, "B", true, cx);
2695// add_labeled_item(&pane, "C", true, cx);
2696// assert_item_labels(&pane, ["A^", "B^", "C*^"], cx);
2697
2698// let save = pane
2699// .update(cx, |pane, cx| {
2700// pane.close_all_items(&CloseAllItems { save_intent: None }, cx)
2701// })
2702// .unwrap();
2703
2704// cx.foreground().run_until_parked();
2705// window.simulate_prompt_answer(2, cx);
2706// save.await.unwrap();
2707// assert_item_labels(&pane, [], cx);
2708// }
2709
2710// fn init_test(cx: &mut TestAppContext) {
2711// cx.update(|cx| {
2712// cx.set_global(SettingsStore::test(cx));
2713// theme::init((), cx);
2714// crate::init_settings(cx);
2715// Project::init_settings(cx);
2716// });
2717// }
2718
2719// fn add_labeled_item(
2720// pane: &ViewHandle<Pane>,
2721// label: &str,
2722// is_dirty: bool,
2723// cx: &mut TestAppContext,
2724// ) -> Box<ViewHandle<TestItem>> {
2725// pane.update(cx, |pane, cx| {
2726// let labeled_item =
2727// Box::new(cx.add_view(|_| TestItem::new().with_label(label).with_dirty(is_dirty)));
2728// pane.add_item(labeled_item.clone(), false, false, None, cx);
2729// labeled_item
2730// })
2731// }
2732
2733// fn set_labeled_items<const COUNT: usize>(
2734// pane: &ViewHandle<Pane>,
2735// labels: [&str; COUNT],
2736// cx: &mut TestAppContext,
2737// ) -> [Box<ViewHandle<TestItem>>; COUNT] {
2738// pane.update(cx, |pane, cx| {
2739// pane.items.clear();
2740// let mut active_item_index = 0;
2741
2742// let mut index = 0;
2743// let items = labels.map(|mut label| {
2744// if label.ends_with("*") {
2745// label = label.trim_end_matches("*");
2746// active_item_index = index;
2747// }
2748
2749// let labeled_item = Box::new(cx.add_view(|_| TestItem::new().with_label(label)));
2750// pane.add_item(labeled_item.clone(), false, false, None, cx);
2751// index += 1;
2752// labeled_item
2753// });
2754
2755// pane.activate_item(active_item_index, false, false, cx);
2756
2757// items
2758// })
2759// }
2760
2761// // Assert the item label, with the active item label suffixed with a '*'
2762// fn assert_item_labels<const COUNT: usize>(
2763// pane: &ViewHandle<Pane>,
2764// expected_states: [&str; COUNT],
2765// cx: &mut TestAppContext,
2766// ) {
2767// pane.read_with(cx, |pane, cx| {
2768// let actual_states = pane
2769// .items
2770// .iter()
2771// .enumerate()
2772// .map(|(ix, item)| {
2773// let mut state = item
2774// .as_any()
2775// .downcast_ref::<TestItem>()
2776// .unwrap()
2777// .read(cx)
2778// .label
2779// .clone();
2780// if ix == pane.active_item_index {
2781// state.push('*');
2782// }
2783// if item.is_dirty(cx) {
2784// state.push('^');
2785// }
2786// state
2787// })
2788// .collect::<Vec<_>>();
2789
2790// assert_eq!(
2791// actual_states, expected_states,
2792// "pane items do not match expectation"
2793// );
2794// })
2795// }
2796// }
2797
2798impl Render for DraggedTab {
2799 type Element = <Tab as RenderOnce>::Rendered;
2800
2801 fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
2802 let ui_font = ThemeSettings::get_global(cx).ui_font.family.clone();
2803 let item = &self.pane.read(cx).items[self.ix];
2804 let label = item.tab_content(Some(self.detail), false, cx);
2805 Tab::new("")
2806 .selected(self.is_active)
2807 .child(label)
2808 .render(cx)
2809 .font(ui_font)
2810 }
2811}