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, ExternalPaths,
12 FocusHandle, FocusableView, Model, MouseButton, NavigationDirection, Pixels, Point,
13 PromptLevel, Render, ScrollHandle, Subscription, Task, View, ViewContext, VisualContext,
14 WeakView, 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 ops::ControlFlow,
24 path::{Path, PathBuf},
25 rc::Rc,
26 sync::{
27 atomic::{AtomicUsize, Ordering},
28 Arc,
29 },
30};
31use theme::ThemeSettings;
32
33use ui::{
34 prelude::*, right_click_menu, ButtonSize, Color, Icon, IconButton, IconSize, Indicator, Label,
35 Tab, TabBar, TabPosition, Tooltip,
36};
37use ui::{v_stack, ContextMenu};
38use util::{maybe, truncate_and_remove_front, ResultExt};
39
40#[derive(PartialEq, Clone, Copy, Deserialize, Debug)]
41#[serde(rename_all = "camelCase")]
42pub enum SaveIntent {
43 /// write all files (even if unchanged)
44 /// prompt before overwriting on-disk changes
45 Save,
46 /// write any files that have local changes
47 /// prompt before overwriting on-disk changes
48 SaveAll,
49 /// always prompt for a new path
50 SaveAs,
51 /// prompt "you have unsaved changes" before writing
52 Close,
53 /// write all dirty files, don't prompt on conflict
54 Overwrite,
55 /// skip all save-related behavior
56 Skip,
57}
58
59#[derive(Clone, Deserialize, PartialEq, Debug)]
60pub struct ActivateItem(pub usize);
61
62// #[derive(Clone, PartialEq)]
63// pub struct CloseItemById {
64// pub item_id: usize,
65// pub pane: WeakView<Pane>,
66// }
67
68// #[derive(Clone, PartialEq)]
69// pub struct CloseItemsToTheLeftById {
70// pub item_id: usize,
71// pub pane: WeakView<Pane>,
72// }
73
74// #[derive(Clone, PartialEq)]
75// pub struct CloseItemsToTheRightById {
76// pub item_id: usize,
77// pub pane: WeakView<Pane>,
78// }
79
80#[derive(Clone, PartialEq, Debug, Deserialize, Default)]
81#[serde(rename_all = "camelCase")]
82pub struct CloseActiveItem {
83 pub save_intent: Option<SaveIntent>,
84}
85
86#[derive(Clone, PartialEq, Debug, Deserialize, Default)]
87#[serde(rename_all = "camelCase")]
88pub struct CloseAllItems {
89 pub save_intent: Option<SaveIntent>,
90}
91
92#[derive(Clone, PartialEq, Debug, Deserialize)]
93#[serde(rename_all = "camelCase")]
94pub struct RevealInProjectPanel {
95 pub entry_id: u64,
96}
97
98impl_actions!(
99 pane,
100 [
101 CloseAllItems,
102 CloseActiveItem,
103 ActivateItem,
104 RevealInProjectPanel
105 ]
106);
107
108actions!(
109 pane,
110 [
111 ActivatePrevItem,
112 ActivateNextItem,
113 ActivateLastItem,
114 CloseInactiveItems,
115 CloseCleanItems,
116 CloseItemsToTheLeft,
117 CloseItemsToTheRight,
118 GoBack,
119 GoForward,
120 ReopenClosedItem,
121 SplitLeft,
122 SplitUp,
123 SplitRight,
124 SplitDown,
125 ]
126);
127
128const MAX_NAVIGATION_HISTORY_LEN: usize = 1024;
129
130pub enum Event {
131 AddItem { item: Box<dyn ItemHandle> },
132 ActivateItem { local: bool },
133 Remove,
134 RemoveItem { item_id: EntityId },
135 Split(SplitDirection),
136 ChangeItemTitle,
137 Focus,
138 ZoomIn,
139 ZoomOut,
140}
141
142impl fmt::Debug for Event {
143 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
144 match self {
145 Event::AddItem { item } => f
146 .debug_struct("AddItem")
147 .field("item", &item.item_id())
148 .finish(),
149 Event::ActivateItem { local } => f
150 .debug_struct("ActivateItem")
151 .field("local", local)
152 .finish(),
153 Event::Remove => f.write_str("Remove"),
154 Event::RemoveItem { item_id } => f
155 .debug_struct("RemoveItem")
156 .field("item_id", item_id)
157 .finish(),
158 Event::Split(direction) => f
159 .debug_struct("Split")
160 .field("direction", direction)
161 .finish(),
162 Event::ChangeItemTitle => f.write_str("ChangeItemTitle"),
163 Event::Focus => f.write_str("Focus"),
164 Event::ZoomIn => f.write_str("ZoomIn"),
165 Event::ZoomOut => f.write_str("ZoomOut"),
166 }
167 }
168}
169
170pub struct Pane {
171 focus_handle: FocusHandle,
172 items: Vec<Box<dyn ItemHandle>>,
173 activation_history: Vec<EntityId>,
174 zoomed: bool,
175 was_focused: bool,
176 active_item_index: usize,
177 last_focused_view_by_item: HashMap<EntityId, FocusHandle>,
178 nav_history: NavHistory,
179 toolbar: View<Toolbar>,
180 new_item_menu: Option<View<ContextMenu>>,
181 split_item_menu: Option<View<ContextMenu>>,
182 // tab_context_menu: View<ContextMenu>,
183 workspace: WeakView<Workspace>,
184 project: Model<Project>,
185 drag_split_direction: Option<SplitDirection>,
186 can_drop_predicate: Option<Arc<dyn Fn(&dyn Any, &mut WindowContext) -> bool>>,
187 custom_drop_handle:
188 Option<Arc<dyn Fn(&mut Pane, &dyn Any, &mut ViewContext<Pane>) -> ControlFlow<(), ()>>>,
189 can_split: bool,
190 render_tab_bar_buttons: Rc<dyn Fn(&mut Pane, &mut ViewContext<Pane>) -> AnyElement>,
191 _subscriptions: Vec<Subscription>,
192 tab_bar_scroll_handle: ScrollHandle,
193 display_nav_history_buttons: bool,
194}
195
196pub struct ItemNavHistory {
197 history: NavHistory,
198 item: Arc<dyn WeakItemHandle>,
199}
200
201#[derive(Clone)]
202pub struct NavHistory(Arc<Mutex<NavHistoryState>>);
203
204struct NavHistoryState {
205 mode: NavigationMode,
206 backward_stack: VecDeque<NavigationEntry>,
207 forward_stack: VecDeque<NavigationEntry>,
208 closed_stack: VecDeque<NavigationEntry>,
209 paths_by_item: HashMap<EntityId, (ProjectPath, Option<PathBuf>)>,
210 pane: WeakView<Pane>,
211 next_timestamp: Arc<AtomicUsize>,
212}
213
214#[derive(Copy, Clone)]
215pub enum NavigationMode {
216 Normal,
217 GoingBack,
218 GoingForward,
219 ClosingItem,
220 ReopeningClosedItem,
221 Disabled,
222}
223
224impl Default for NavigationMode {
225 fn default() -> Self {
226 Self::Normal
227 }
228}
229
230pub struct NavigationEntry {
231 pub item: Arc<dyn WeakItemHandle>,
232 pub data: Option<Box<dyn Any + Send>>,
233 pub timestamp: usize,
234}
235
236#[derive(Clone)]
237pub struct DraggedTab {
238 pub pane: View<Pane>,
239 pub ix: usize,
240 pub item_id: EntityId,
241 pub detail: usize,
242 pub is_active: bool,
243}
244
245// pub struct DraggedItem {
246// pub handle: Box<dyn ItemHandle>,
247// pub pane: WeakView<Pane>,
248// }
249
250// pub enum ReorderBehavior {
251// None,
252// MoveAfterActive,
253// MoveToIndex(usize),
254// }
255
256// #[derive(Debug, Clone, Copy, PartialEq, Eq)]
257// enum TabBarContextMenuKind {
258// New,
259// Split,
260// }
261
262// struct TabBarContextMenu {
263// kind: TabBarContextMenuKind,
264// handle: View<ContextMenu>,
265// }
266
267// impl TabBarContextMenu {
268// fn handle_if_kind(&self, kind: TabBarContextMenuKind) -> Option<View<ContextMenu>> {
269// if self.kind == kind {
270// return Some(self.handle.clone());
271// }
272// None
273// }
274// }
275
276// #[allow(clippy::too_many_arguments)]
277// fn nav_button<A: Action, F: 'static + Fn(&mut Pane, &mut ViewContext<Pane>)>(
278// svg_path: &'static str,
279// style: theme::Interactive<theme2::IconButton>,
280// nav_button_height: f32,
281// tooltip_style: TooltipStyle,
282// enabled: bool,
283// on_click: F,
284// tooltip_action: A,
285// action_name: &str,
286// cx: &mut ViewContext<Pane>,
287// ) -> AnyElement<Pane> {
288// MouseEventHandler::new::<A, _>(0, cx, |state, _| {
289// let style = if enabled {
290// style.style_for(state)
291// } else {
292// style.disabled_style()
293// };
294// Svg::new(svg_path)
295// .with_color(style.color)
296// .constrained()
297// .with_width(style.icon_width)
298// .aligned()
299// .contained()
300// .with_style(style.container)
301// .constrained()
302// .with_width(style.button_width)
303// .with_height(nav_button_height)
304// .aligned()
305// .top()
306// })
307// .with_cursor_style(if enabled {
308// CursorStyle::PointingHand
309// } else {
310// CursorStyle::default()
311// })
312// .on_click(MouseButton::Left, move |_, toolbar, cx| {
313// on_click(toolbar, cx)
314// })
315// .with_tooltip::<A>(
316// 0,
317// action_name.to_string(),
318// Some(Box::new(tooltip_action)),
319// tooltip_style,
320// cx,
321// )
322// .contained()
323// .into_any_named("nav button")
324// }
325
326impl EventEmitter<Event> for Pane {}
327
328impl Pane {
329 pub fn new(
330 workspace: WeakView<Workspace>,
331 project: Model<Project>,
332 next_timestamp: Arc<AtomicUsize>,
333 can_drop_predicate: Option<Arc<dyn Fn(&dyn Any, &mut WindowContext) -> bool + 'static>>,
334 cx: &mut ViewContext<Self>,
335 ) -> Self {
336 // todo!("context menu")
337 // let pane_view_id = cx.view_id();
338 // let context_menu = cx.build_view(|cx| ContextMenu::new(pane_view_id, cx));
339 // context_menu.update(cx, |menu, _| {
340 // menu.set_position_mode(OverlayPositionMode::Local)
341 // });
342 //
343 let focus_handle = cx.focus_handle();
344
345 let subscriptions = vec![
346 cx.on_focus_in(&focus_handle, move |this, cx| this.focus_in(cx)),
347 cx.on_focus_out(&focus_handle, move |this, cx| this.focus_out(cx)),
348 ];
349
350 let handle = cx.view().downgrade();
351 Self {
352 focus_handle,
353 items: Vec::new(),
354 activation_history: Vec::new(),
355 was_focused: false,
356 zoomed: false,
357 active_item_index: 0,
358 last_focused_view_by_item: Default::default(),
359 nav_history: NavHistory(Arc::new(Mutex::new(NavHistoryState {
360 mode: NavigationMode::Normal,
361 backward_stack: Default::default(),
362 forward_stack: Default::default(),
363 closed_stack: Default::default(),
364 paths_by_item: Default::default(),
365 pane: handle.clone(),
366 next_timestamp,
367 }))),
368 toolbar: cx.new_view(|_| Toolbar::new()),
369 new_item_menu: None,
370 split_item_menu: None,
371 tab_bar_scroll_handle: ScrollHandle::new(),
372 drag_split_direction: None,
373 // tab_bar_context_menu: TabBarContextMenu {
374 // kind: TabBarContextMenuKind::New,
375 // handle: context_menu,
376 // },
377 // tab_context_menu: cx.build_view(|_| ContextMenu::new(pane_view_id, cx)),
378 workspace,
379 project,
380 can_drop_predicate,
381 custom_drop_handle: None,
382 can_split: true,
383 render_tab_bar_buttons: Rc::new(move |pane, cx| {
384 h_stack()
385 .gap_2()
386 .child(
387 IconButton::new("plus", Icon::Plus)
388 .icon_size(IconSize::Small)
389 .icon_color(Color::Muted)
390 .on_click(cx.listener(|pane, _, cx| {
391 let menu = ContextMenu::build(cx, |menu, _| {
392 menu.action("New File", NewFile.boxed_clone())
393 .action("New Terminal", NewCenterTerminal.boxed_clone())
394 .action("New Search", NewSearch.boxed_clone())
395 });
396 cx.subscribe(&menu, |pane, _, _: &DismissEvent, cx| {
397 pane.focus(cx);
398 pane.new_item_menu = None;
399 })
400 .detach();
401 pane.new_item_menu = Some(menu);
402 }))
403 .tooltip(|cx| Tooltip::text("New...", cx)),
404 )
405 .when_some(pane.new_item_menu.as_ref(), |el, new_item_menu| {
406 el.child(Self::render_menu_overlay(new_item_menu))
407 })
408 .child(
409 IconButton::new("split", Icon::Split)
410 .icon_size(IconSize::Small)
411 .icon_color(Color::Muted)
412 .on_click(cx.listener(|pane, _, cx| {
413 let menu = ContextMenu::build(cx, |menu, _| {
414 menu.action("Split Right", SplitRight.boxed_clone())
415 .action("Split Left", SplitLeft.boxed_clone())
416 .action("Split Up", SplitUp.boxed_clone())
417 .action("Split Down", SplitDown.boxed_clone())
418 });
419 cx.subscribe(&menu, |pane, _, _: &DismissEvent, cx| {
420 pane.focus(cx);
421 pane.split_item_menu = None;
422 })
423 .detach();
424 pane.split_item_menu = Some(menu);
425 }))
426 .tooltip(|cx| Tooltip::text("Split Pane", cx)),
427 )
428 .child({
429 let zoomed = pane.is_zoomed();
430 IconButton::new("toggle_zoom", Icon::Maximize)
431 .icon_size(IconSize::Small)
432 .icon_color(Color::Muted)
433 .selected(zoomed)
434 .selected_icon(Icon::Minimize)
435 .on_click(cx.listener(|pane, _, cx| {
436 pane.toggle_zoom(&crate::ToggleZoom, cx);
437 }))
438 .tooltip(move |cx| {
439 Tooltip::text(if zoomed { "Zoom Out" } else { "Zoom In" }, cx)
440 })
441 })
442 .when_some(pane.split_item_menu.as_ref(), |el, split_item_menu| {
443 el.child(Self::render_menu_overlay(split_item_menu))
444 })
445 .into_any_element()
446 }),
447 display_nav_history_buttons: true,
448 _subscriptions: subscriptions,
449 }
450 }
451
452 pub fn has_focus(&self, cx: &WindowContext) -> bool {
453 // todo!(); // inline this manually
454 self.focus_handle.contains_focused(cx)
455 }
456
457 fn focus_in(&mut self, cx: &mut ViewContext<Self>) {
458 if !self.was_focused {
459 self.was_focused = true;
460 cx.emit(Event::Focus);
461 cx.notify();
462 }
463
464 self.toolbar.update(cx, |toolbar, cx| {
465 toolbar.focus_changed(true, cx);
466 });
467
468 if let Some(active_item) = self.active_item() {
469 if self.focus_handle.is_focused(cx) {
470 // Pane was focused directly. We need to either focus a view inside the active item,
471 // or focus the active item itself
472 if let Some(weak_last_focused_view) =
473 self.last_focused_view_by_item.get(&active_item.item_id())
474 {
475 weak_last_focused_view.focus(cx);
476 return;
477 }
478
479 active_item.focus_handle(cx).focus(cx);
480 } else if let Some(focused) = cx.focused() {
481 if !self.context_menu_focused(cx) {
482 self.last_focused_view_by_item
483 .insert(active_item.item_id(), focused);
484 }
485 }
486 }
487 }
488
489 fn context_menu_focused(&self, cx: &mut ViewContext<Self>) -> bool {
490 self.new_item_menu
491 .as_ref()
492 .or(self.split_item_menu.as_ref())
493 .map_or(false, |menu| menu.focus_handle(cx).is_focused(cx))
494 }
495
496 fn focus_out(&mut self, cx: &mut ViewContext<Self>) {
497 self.was_focused = false;
498 self.toolbar.update(cx, |toolbar, cx| {
499 toolbar.focus_changed(false, cx);
500 });
501 cx.notify();
502 }
503
504 pub fn active_item_index(&self) -> usize {
505 self.active_item_index
506 }
507
508 pub fn set_can_split(&mut self, can_split: bool, cx: &mut ViewContext<Self>) {
509 self.can_split = can_split;
510 cx.notify();
511 }
512
513 pub fn set_can_navigate(&mut self, can_navigate: bool, cx: &mut ViewContext<Self>) {
514 self.toolbar.update(cx, |toolbar, cx| {
515 toolbar.set_can_navigate(can_navigate, cx);
516 });
517 cx.notify();
518 }
519
520 pub fn set_render_tab_bar_buttons<F>(&mut self, cx: &mut ViewContext<Self>, render: F)
521 where
522 F: 'static + Fn(&mut Pane, &mut ViewContext<Pane>) -> AnyElement,
523 {
524 self.render_tab_bar_buttons = Rc::new(render);
525 cx.notify();
526 }
527
528 pub fn set_custom_drop_handle<F>(&mut self, cx: &mut ViewContext<Self>, handle: F)
529 where
530 F: 'static + Fn(&mut Pane, &dyn Any, &mut ViewContext<Pane>) -> ControlFlow<(), ()>,
531 {
532 self.custom_drop_handle = Some(Arc::new(handle));
533 cx.notify();
534 }
535
536 pub fn nav_history_for_item<T: Item>(&self, item: &View<T>) -> ItemNavHistory {
537 ItemNavHistory {
538 history: self.nav_history.clone(),
539 item: Arc::new(item.downgrade()),
540 }
541 }
542
543 pub fn nav_history(&self) -> &NavHistory {
544 &self.nav_history
545 }
546
547 pub fn nav_history_mut(&mut self) -> &mut NavHistory {
548 &mut self.nav_history
549 }
550
551 pub fn disable_history(&mut self) {
552 self.nav_history.disable();
553 }
554
555 pub fn enable_history(&mut self) {
556 self.nav_history.enable();
557 }
558
559 pub fn can_navigate_backward(&self) -> bool {
560 !self.nav_history.0.lock().backward_stack.is_empty()
561 }
562
563 pub fn can_navigate_forward(&self) -> bool {
564 !self.nav_history.0.lock().forward_stack.is_empty()
565 }
566
567 fn navigate_backward(&mut self, cx: &mut ViewContext<Self>) {
568 if let Some(workspace) = self.workspace.upgrade() {
569 let pane = cx.view().downgrade();
570 cx.window_context().defer(move |cx| {
571 workspace.update(cx, |workspace, cx| {
572 workspace.go_back(pane, cx).detach_and_log_err(cx)
573 })
574 })
575 }
576 }
577
578 fn navigate_forward(&mut self, cx: &mut ViewContext<Self>) {
579 if let Some(workspace) = self.workspace.upgrade() {
580 let pane = cx.view().downgrade();
581 cx.window_context().defer(move |cx| {
582 workspace.update(cx, |workspace, cx| {
583 workspace.go_forward(pane, cx).detach_and_log_err(cx)
584 })
585 })
586 }
587 }
588
589 fn history_updated(&mut self, cx: &mut ViewContext<Self>) {
590 self.toolbar.update(cx, |_, cx| cx.notify());
591 }
592
593 pub(crate) fn open_item(
594 &mut self,
595 project_entry_id: Option<ProjectEntryId>,
596 focus_item: bool,
597 cx: &mut ViewContext<Self>,
598 build_item: impl FnOnce(&mut ViewContext<Pane>) -> Box<dyn ItemHandle>,
599 ) -> Box<dyn ItemHandle> {
600 let mut existing_item = None;
601 if let Some(project_entry_id) = project_entry_id {
602 for (index, item) in self.items.iter().enumerate() {
603 if item.is_singleton(cx)
604 && item.project_entry_ids(cx).as_slice() == [project_entry_id]
605 {
606 let item = item.boxed_clone();
607 existing_item = Some((index, item));
608 break;
609 }
610 }
611 }
612
613 if let Some((index, existing_item)) = existing_item {
614 self.activate_item(index, focus_item, focus_item, cx);
615 existing_item
616 } else {
617 let new_item = build_item(cx);
618 self.add_item(new_item.clone(), true, focus_item, None, cx);
619 new_item
620 }
621 }
622
623 pub fn add_item(
624 &mut self,
625 item: Box<dyn ItemHandle>,
626 activate_pane: bool,
627 focus_item: bool,
628 destination_index: Option<usize>,
629 cx: &mut ViewContext<Self>,
630 ) {
631 if item.is_singleton(cx) {
632 if let Some(&entry_id) = item.project_entry_ids(cx).get(0) {
633 let project = self.project.read(cx);
634 if let Some(project_path) = project.path_for_entry(entry_id, cx) {
635 let abs_path = project.absolute_path(&project_path, cx);
636 self.nav_history
637 .0
638 .lock()
639 .paths_by_item
640 .insert(item.item_id(), (project_path, abs_path));
641 }
642 }
643 }
644 // If no destination index is specified, add or move the item after the active item.
645 let mut insertion_index = {
646 cmp::min(
647 if let Some(destination_index) = destination_index {
648 destination_index
649 } else {
650 self.active_item_index + 1
651 },
652 self.items.len(),
653 )
654 };
655
656 // Does the item already exist?
657 let project_entry_id = if item.is_singleton(cx) {
658 item.project_entry_ids(cx).get(0).copied()
659 } else {
660 None
661 };
662
663 let existing_item_index = self.items.iter().position(|existing_item| {
664 if existing_item.item_id() == item.item_id() {
665 true
666 } else if existing_item.is_singleton(cx) {
667 existing_item
668 .project_entry_ids(cx)
669 .get(0)
670 .map_or(false, |existing_entry_id| {
671 Some(existing_entry_id) == project_entry_id.as_ref()
672 })
673 } else {
674 false
675 }
676 });
677
678 if let Some(existing_item_index) = existing_item_index {
679 // If the item already exists, move it to the desired destination and activate it
680
681 if existing_item_index != insertion_index {
682 let existing_item_is_active = existing_item_index == self.active_item_index;
683
684 // If the caller didn't specify a destination and the added item is already
685 // the active one, don't move it
686 if existing_item_is_active && destination_index.is_none() {
687 insertion_index = existing_item_index;
688 } else {
689 self.items.remove(existing_item_index);
690 if existing_item_index < self.active_item_index {
691 self.active_item_index -= 1;
692 }
693 insertion_index = insertion_index.min(self.items.len());
694
695 self.items.insert(insertion_index, item.clone());
696
697 if existing_item_is_active {
698 self.active_item_index = insertion_index;
699 } else if insertion_index <= self.active_item_index {
700 self.active_item_index += 1;
701 }
702 }
703
704 cx.notify();
705 }
706
707 self.activate_item(insertion_index, activate_pane, focus_item, cx);
708 } else {
709 self.items.insert(insertion_index, item.clone());
710 if insertion_index <= self.active_item_index {
711 self.active_item_index += 1;
712 }
713
714 self.activate_item(insertion_index, activate_pane, focus_item, cx);
715 cx.notify();
716 }
717
718 cx.emit(Event::AddItem { item });
719 }
720
721 pub fn items_len(&self) -> usize {
722 self.items.len()
723 }
724
725 pub fn items(&self) -> impl Iterator<Item = &Box<dyn ItemHandle>> + DoubleEndedIterator {
726 self.items.iter()
727 }
728
729 pub fn items_of_type<T: Render>(&self) -> impl '_ + Iterator<Item = View<T>> {
730 self.items
731 .iter()
732 .filter_map(|item| item.to_any().downcast().ok())
733 }
734
735 pub fn active_item(&self) -> Option<Box<dyn ItemHandle>> {
736 self.items.get(self.active_item_index).cloned()
737 }
738
739 pub fn pixel_position_of_cursor(&self, cx: &AppContext) -> Option<Point<Pixels>> {
740 self.items
741 .get(self.active_item_index)?
742 .pixel_position_of_cursor(cx)
743 }
744
745 pub fn item_for_entry(
746 &self,
747 entry_id: ProjectEntryId,
748 cx: &AppContext,
749 ) -> Option<Box<dyn ItemHandle>> {
750 self.items.iter().find_map(|item| {
751 if item.is_singleton(cx) && item.project_entry_ids(cx).as_slice() == [entry_id] {
752 Some(item.boxed_clone())
753 } else {
754 None
755 }
756 })
757 }
758
759 pub fn index_for_item(&self, item: &dyn ItemHandle) -> Option<usize> {
760 self.items
761 .iter()
762 .position(|i| i.item_id() == item.item_id())
763 }
764
765 pub fn item_for_index(&self, ix: usize) -> Option<&dyn ItemHandle> {
766 self.items.get(ix).map(|i| i.as_ref())
767 }
768
769 pub fn toggle_zoom(&mut self, _: &ToggleZoom, cx: &mut ViewContext<Self>) {
770 if self.zoomed {
771 cx.emit(Event::ZoomOut);
772 } else if !self.items.is_empty() {
773 if !self.focus_handle.contains_focused(cx) {
774 cx.focus_self();
775 }
776 cx.emit(Event::ZoomIn);
777 }
778 }
779
780 pub fn activate_item(
781 &mut self,
782 index: usize,
783 activate_pane: bool,
784 focus_item: bool,
785 cx: &mut ViewContext<Self>,
786 ) {
787 use NavigationMode::{GoingBack, GoingForward};
788
789 if index < self.items.len() {
790 let prev_active_item_ix = mem::replace(&mut self.active_item_index, index);
791 if prev_active_item_ix != self.active_item_index
792 || matches!(self.nav_history.mode(), GoingBack | GoingForward)
793 {
794 if let Some(prev_item) = self.items.get(prev_active_item_ix) {
795 prev_item.deactivated(cx);
796 }
797
798 cx.emit(Event::ActivateItem {
799 local: activate_pane,
800 });
801 }
802
803 if let Some(newly_active_item) = self.items.get(index) {
804 self.activation_history
805 .retain(|&previously_active_item_id| {
806 previously_active_item_id != newly_active_item.item_id()
807 });
808 self.activation_history.push(newly_active_item.item_id());
809 }
810
811 self.update_toolbar(cx);
812 self.update_status_bar(cx);
813
814 if focus_item {
815 self.focus_active_item(cx);
816 }
817
818 self.tab_bar_scroll_handle.scroll_to_item(index);
819 cx.notify();
820 }
821 }
822
823 pub fn activate_prev_item(&mut self, activate_pane: bool, cx: &mut ViewContext<Self>) {
824 let mut index = self.active_item_index;
825 if index > 0 {
826 index -= 1;
827 } else if !self.items.is_empty() {
828 index = self.items.len() - 1;
829 }
830 self.activate_item(index, activate_pane, activate_pane, cx);
831 }
832
833 pub fn activate_next_item(&mut self, activate_pane: bool, cx: &mut ViewContext<Self>) {
834 let mut index = self.active_item_index;
835 if index + 1 < self.items.len() {
836 index += 1;
837 } else {
838 index = 0;
839 }
840 self.activate_item(index, activate_pane, activate_pane, cx);
841 }
842
843 pub fn close_active_item(
844 &mut self,
845 action: &CloseActiveItem,
846 cx: &mut ViewContext<Self>,
847 ) -> Option<Task<Result<()>>> {
848 if self.items.is_empty() {
849 return None;
850 }
851 let active_item_id = self.items[self.active_item_index].item_id();
852 Some(self.close_item_by_id(
853 active_item_id,
854 action.save_intent.unwrap_or(SaveIntent::Close),
855 cx,
856 ))
857 }
858
859 pub fn close_item_by_id(
860 &mut self,
861 item_id_to_close: EntityId,
862 save_intent: SaveIntent,
863 cx: &mut ViewContext<Self>,
864 ) -> Task<Result<()>> {
865 self.close_items(cx, save_intent, move |view_id| view_id == item_id_to_close)
866 }
867
868 pub fn close_inactive_items(
869 &mut self,
870 _: &CloseInactiveItems,
871 cx: &mut ViewContext<Self>,
872 ) -> Option<Task<Result<()>>> {
873 if self.items.is_empty() {
874 return None;
875 }
876
877 let active_item_id = self.items[self.active_item_index].item_id();
878 Some(self.close_items(cx, SaveIntent::Close, move |item_id| {
879 item_id != active_item_id
880 }))
881 }
882
883 pub fn close_clean_items(
884 &mut self,
885 _: &CloseCleanItems,
886 cx: &mut ViewContext<Self>,
887 ) -> Option<Task<Result<()>>> {
888 let item_ids: Vec<_> = self
889 .items()
890 .filter(|item| !item.is_dirty(cx))
891 .map(|item| item.item_id())
892 .collect();
893 Some(self.close_items(cx, SaveIntent::Close, move |item_id| {
894 item_ids.contains(&item_id)
895 }))
896 }
897
898 pub fn close_items_to_the_left(
899 &mut self,
900 _: &CloseItemsToTheLeft,
901 cx: &mut ViewContext<Self>,
902 ) -> Option<Task<Result<()>>> {
903 if self.items.is_empty() {
904 return None;
905 }
906 let active_item_id = self.items[self.active_item_index].item_id();
907 Some(self.close_items_to_the_left_by_id(active_item_id, cx))
908 }
909
910 pub fn close_items_to_the_left_by_id(
911 &mut self,
912 item_id: EntityId,
913 cx: &mut ViewContext<Self>,
914 ) -> Task<Result<()>> {
915 let item_ids: Vec<_> = self
916 .items()
917 .take_while(|item| item.item_id() != item_id)
918 .map(|item| item.item_id())
919 .collect();
920 self.close_items(cx, SaveIntent::Close, move |item_id| {
921 item_ids.contains(&item_id)
922 })
923 }
924
925 pub fn close_items_to_the_right(
926 &mut self,
927 _: &CloseItemsToTheRight,
928 cx: &mut ViewContext<Self>,
929 ) -> Option<Task<Result<()>>> {
930 if self.items.is_empty() {
931 return None;
932 }
933 let active_item_id = self.items[self.active_item_index].item_id();
934 Some(self.close_items_to_the_right_by_id(active_item_id, cx))
935 }
936
937 pub fn close_items_to_the_right_by_id(
938 &mut self,
939 item_id: EntityId,
940 cx: &mut ViewContext<Self>,
941 ) -> Task<Result<()>> {
942 let item_ids: Vec<_> = self
943 .items()
944 .rev()
945 .take_while(|item| item.item_id() != item_id)
946 .map(|item| item.item_id())
947 .collect();
948 self.close_items(cx, SaveIntent::Close, move |item_id| {
949 item_ids.contains(&item_id)
950 })
951 }
952
953 pub fn close_all_items(
954 &mut self,
955 action: &CloseAllItems,
956 cx: &mut ViewContext<Self>,
957 ) -> Option<Task<Result<()>>> {
958 if self.items.is_empty() {
959 return None;
960 }
961
962 Some(
963 self.close_items(cx, action.save_intent.unwrap_or(SaveIntent::Close), |_| {
964 true
965 }),
966 )
967 }
968
969 pub(super) fn file_names_for_prompt(
970 items: &mut dyn Iterator<Item = &Box<dyn ItemHandle>>,
971 all_dirty_items: usize,
972 cx: &AppContext,
973 ) -> String {
974 /// Quantity of item paths displayed in prompt prior to cutoff..
975 const FILE_NAMES_CUTOFF_POINT: usize = 10;
976 let mut file_names: Vec<_> = items
977 .filter_map(|item| {
978 item.project_path(cx).and_then(|project_path| {
979 project_path
980 .path
981 .file_name()
982 .and_then(|name| name.to_str().map(ToOwned::to_owned))
983 })
984 })
985 .take(FILE_NAMES_CUTOFF_POINT)
986 .collect();
987 let should_display_followup_text =
988 all_dirty_items > FILE_NAMES_CUTOFF_POINT || file_names.len() != all_dirty_items;
989 if should_display_followup_text {
990 let not_shown_files = all_dirty_items - file_names.len();
991 if not_shown_files == 1 {
992 file_names.push(".. 1 file not shown".into());
993 } else {
994 file_names.push(format!(".. {} files not shown", not_shown_files).into());
995 }
996 }
997 let file_names = file_names.join("\n");
998 format!(
999 "Do you want to save changes to the following {} files?\n{file_names}",
1000 all_dirty_items
1001 )
1002 }
1003
1004 pub fn close_items(
1005 &mut self,
1006 cx: &mut ViewContext<Pane>,
1007 mut save_intent: SaveIntent,
1008 should_close: impl Fn(EntityId) -> bool,
1009 ) -> Task<Result<()>> {
1010 // Find the items to close.
1011 let mut items_to_close = Vec::new();
1012 let mut dirty_items = Vec::new();
1013 for item in &self.items {
1014 if should_close(item.item_id()) {
1015 items_to_close.push(item.boxed_clone());
1016 if item.is_dirty(cx) {
1017 dirty_items.push(item.boxed_clone());
1018 }
1019 }
1020 }
1021
1022 // If a buffer is open both in a singleton editor and in a multibuffer, make sure
1023 // to focus the singleton buffer when prompting to save that buffer, as opposed
1024 // to focusing the multibuffer, because this gives the user a more clear idea
1025 // of what content they would be saving.
1026 items_to_close.sort_by_key(|item| !item.is_singleton(cx));
1027
1028 let workspace = self.workspace.clone();
1029 cx.spawn(|pane, mut cx| async move {
1030 if save_intent == SaveIntent::Close && dirty_items.len() > 1 {
1031 let answer = pane.update(&mut cx, |_, cx| {
1032 let prompt =
1033 Self::file_names_for_prompt(&mut dirty_items.iter(), dirty_items.len(), cx);
1034 cx.prompt(
1035 PromptLevel::Warning,
1036 &prompt,
1037 &["Save all", "Discard all", "Cancel"],
1038 )
1039 })?;
1040 match answer.await {
1041 Ok(0) => save_intent = SaveIntent::SaveAll,
1042 Ok(1) => save_intent = SaveIntent::Skip,
1043 _ => {}
1044 }
1045 }
1046 let mut saved_project_items_ids = HashSet::default();
1047 for item in items_to_close.clone() {
1048 // Find the item's current index and its set of project item models. Avoid
1049 // storing these in advance, in case they have changed since this task
1050 // was started.
1051 let (item_ix, mut project_item_ids) = pane.update(&mut cx, |pane, cx| {
1052 (pane.index_for_item(&*item), item.project_item_model_ids(cx))
1053 })?;
1054 let item_ix = if let Some(ix) = item_ix {
1055 ix
1056 } else {
1057 continue;
1058 };
1059
1060 // Check if this view has any project items that are not open anywhere else
1061 // in the workspace, AND that the user has not already been prompted to save.
1062 // If there are any such project entries, prompt the user to save this item.
1063 let project = workspace.update(&mut cx, |workspace, cx| {
1064 for item in workspace.items(cx) {
1065 if !items_to_close
1066 .iter()
1067 .any(|item_to_close| item_to_close.item_id() == item.item_id())
1068 {
1069 let other_project_item_ids = item.project_item_model_ids(cx);
1070 project_item_ids.retain(|id| !other_project_item_ids.contains(id));
1071 }
1072 }
1073 workspace.project().clone()
1074 })?;
1075 let should_save = project_item_ids
1076 .iter()
1077 .any(|id| saved_project_items_ids.insert(*id));
1078
1079 if should_save
1080 && !Self::save_item(
1081 project.clone(),
1082 &pane,
1083 item_ix,
1084 &*item,
1085 save_intent,
1086 &mut cx,
1087 )
1088 .await?
1089 {
1090 break;
1091 }
1092
1093 // Remove the item from the pane.
1094 pane.update(&mut cx, |pane, cx| {
1095 if let Some(item_ix) = pane
1096 .items
1097 .iter()
1098 .position(|i| i.item_id() == item.item_id())
1099 {
1100 pane.remove_item(item_ix, false, cx);
1101 }
1102 })
1103 .ok();
1104 }
1105
1106 pane.update(&mut cx, |_, cx| cx.notify()).ok();
1107 Ok(())
1108 })
1109 }
1110
1111 pub fn remove_item(
1112 &mut self,
1113 item_index: usize,
1114 activate_pane: bool,
1115 cx: &mut ViewContext<Self>,
1116 ) {
1117 self.activation_history
1118 .retain(|&history_entry| history_entry != self.items[item_index].item_id());
1119
1120 if item_index == self.active_item_index {
1121 let index_to_activate = self
1122 .activation_history
1123 .pop()
1124 .and_then(|last_activated_item| {
1125 self.items.iter().enumerate().find_map(|(index, item)| {
1126 (item.item_id() == last_activated_item).then_some(index)
1127 })
1128 })
1129 // We didn't have a valid activation history entry, so fallback
1130 // to activating the item to the left
1131 .unwrap_or_else(|| item_index.min(self.items.len()).saturating_sub(1));
1132
1133 let should_activate = activate_pane || self.has_focus(cx);
1134 if self.items.len() == 1 && should_activate {
1135 self.focus_handle.focus(cx);
1136 } else {
1137 self.activate_item(index_to_activate, should_activate, should_activate, cx);
1138 }
1139 }
1140
1141 let item = self.items.remove(item_index);
1142
1143 cx.emit(Event::RemoveItem {
1144 item_id: item.item_id(),
1145 });
1146 if self.items.is_empty() {
1147 item.deactivated(cx);
1148 self.update_toolbar(cx);
1149 cx.emit(Event::Remove);
1150 }
1151
1152 if item_index < self.active_item_index {
1153 self.active_item_index -= 1;
1154 }
1155
1156 self.nav_history.set_mode(NavigationMode::ClosingItem);
1157 item.deactivated(cx);
1158 self.nav_history.set_mode(NavigationMode::Normal);
1159
1160 if let Some(path) = item.project_path(cx) {
1161 let abs_path = self
1162 .nav_history
1163 .0
1164 .lock()
1165 .paths_by_item
1166 .get(&item.item_id())
1167 .and_then(|(_, abs_path)| abs_path.clone());
1168
1169 self.nav_history
1170 .0
1171 .lock()
1172 .paths_by_item
1173 .insert(item.item_id(), (path, abs_path));
1174 } else {
1175 self.nav_history
1176 .0
1177 .lock()
1178 .paths_by_item
1179 .remove(&item.item_id());
1180 }
1181
1182 if self.items.is_empty() && self.zoomed {
1183 cx.emit(Event::ZoomOut);
1184 }
1185
1186 cx.notify();
1187 }
1188
1189 pub async fn save_item(
1190 project: Model<Project>,
1191 pane: &WeakView<Pane>,
1192 item_ix: usize,
1193 item: &dyn ItemHandle,
1194 save_intent: SaveIntent,
1195 cx: &mut AsyncWindowContext,
1196 ) -> Result<bool> {
1197 const CONFLICT_MESSAGE: &str =
1198 "This file has changed on disk since you started editing it. Do you want to overwrite it?";
1199
1200 if save_intent == SaveIntent::Skip {
1201 return Ok(true);
1202 }
1203
1204 let (mut has_conflict, mut is_dirty, mut can_save, can_save_as) = cx.update(|_, cx| {
1205 (
1206 item.has_conflict(cx),
1207 item.is_dirty(cx),
1208 item.can_save(cx),
1209 item.is_singleton(cx),
1210 )
1211 })?;
1212
1213 // when saving a single buffer, we ignore whether or not it's dirty.
1214 if save_intent == SaveIntent::Save {
1215 is_dirty = true;
1216 }
1217
1218 if save_intent == SaveIntent::SaveAs {
1219 is_dirty = true;
1220 has_conflict = false;
1221 can_save = false;
1222 }
1223
1224 if save_intent == SaveIntent::Overwrite {
1225 has_conflict = false;
1226 }
1227
1228 if has_conflict && can_save {
1229 let answer = pane.update(cx, |pane, cx| {
1230 pane.activate_item(item_ix, true, true, cx);
1231 cx.prompt(
1232 PromptLevel::Warning,
1233 CONFLICT_MESSAGE,
1234 &["Overwrite", "Discard", "Cancel"],
1235 )
1236 })?;
1237 match answer.await {
1238 Ok(0) => pane.update(cx, |_, cx| item.save(project, cx))?.await?,
1239 Ok(1) => pane.update(cx, |_, cx| item.reload(project, cx))?.await?,
1240 _ => return Ok(false),
1241 }
1242 } else if is_dirty && (can_save || can_save_as) {
1243 if save_intent == SaveIntent::Close {
1244 let will_autosave = cx.update(|_, cx| {
1245 matches!(
1246 WorkspaceSettings::get_global(cx).autosave,
1247 AutosaveSetting::OnFocusChange | AutosaveSetting::OnWindowChange
1248 ) && Self::can_autosave_item(&*item, cx)
1249 })?;
1250 if !will_autosave {
1251 let answer = pane.update(cx, |pane, cx| {
1252 pane.activate_item(item_ix, true, true, cx);
1253 let prompt = dirty_message_for(item.project_path(cx));
1254 cx.prompt(
1255 PromptLevel::Warning,
1256 &prompt,
1257 &["Save", "Don't Save", "Cancel"],
1258 )
1259 })?;
1260 match answer.await {
1261 Ok(0) => {}
1262 Ok(1) => return Ok(true), // Don't save this file
1263 _ => return Ok(false), // Cancel
1264 }
1265 }
1266 }
1267
1268 if can_save {
1269 pane.update(cx, |_, cx| item.save(project, cx))?.await?;
1270 } else if can_save_as {
1271 let start_abs_path = project
1272 .update(cx, |project, cx| {
1273 let worktree = project.visible_worktrees(cx).next()?;
1274 Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
1275 })?
1276 .unwrap_or_else(|| Path::new("").into());
1277
1278 let abs_path = cx.update(|_, cx| cx.prompt_for_new_path(&start_abs_path))?;
1279 if let Some(abs_path) = abs_path.await.ok().flatten() {
1280 pane.update(cx, |_, cx| item.save_as(project, abs_path, cx))?
1281 .await?;
1282 } else {
1283 return Ok(false);
1284 }
1285 }
1286 }
1287 Ok(true)
1288 }
1289
1290 fn can_autosave_item(item: &dyn ItemHandle, cx: &AppContext) -> bool {
1291 let is_deleted = item.project_entry_ids(cx).is_empty();
1292 item.is_dirty(cx) && !item.has_conflict(cx) && item.can_save(cx) && !is_deleted
1293 }
1294
1295 pub fn autosave_item(
1296 item: &dyn ItemHandle,
1297 project: Model<Project>,
1298 cx: &mut WindowContext,
1299 ) -> Task<Result<()>> {
1300 if Self::can_autosave_item(item, cx) {
1301 item.save(project, cx)
1302 } else {
1303 Task::ready(Ok(()))
1304 }
1305 }
1306
1307 pub fn focus(&mut self, cx: &mut ViewContext<Pane>) {
1308 cx.focus(&self.focus_handle);
1309 }
1310
1311 pub fn focus_active_item(&mut self, cx: &mut ViewContext<Self>) {
1312 if let Some(active_item) = self.active_item() {
1313 let focus_handle = active_item.focus_handle(cx);
1314 cx.focus(&focus_handle);
1315 }
1316 }
1317
1318 pub fn split(&mut self, direction: SplitDirection, cx: &mut ViewContext<Self>) {
1319 cx.emit(Event::Split(direction));
1320 }
1321
1322 // fn deploy_split_menu(&mut self, cx: &mut ViewContext<Self>) {
1323 // self.tab_bar_context_menu.handle.update(cx, |menu, cx| {
1324 // menu.toggle(
1325 // Default::default(),
1326 // AnchorCorner::TopRight,
1327 // vec![
1328 // ContextMenuItem::action("Split Right", SplitRight),
1329 // ContextMenuItem::action("Split Left", SplitLeft),
1330 // ContextMenuItem::action("Split Up", SplitUp),
1331 // ContextMenuItem::action("Split Down", SplitDown),
1332 // ],
1333 // cx,
1334 // );
1335 // });
1336
1337 // self.tab_bar_context_menu.kind = TabBarContextMenuKind::Split;
1338 // }
1339
1340 // fn deploy_new_menu(&mut self, cx: &mut ViewContext<Self>) {
1341 // self.tab_bar_context_menu.handle.update(cx, |menu, cx| {
1342 // menu.toggle(
1343 // Default::default(),
1344 // AnchorCorner::TopRight,
1345 // vec![
1346 // ContextMenuItem::action("New File", NewFile),
1347 // ContextMenuItem::action("New Terminal", NewCenterTerminal),
1348 // ContextMenuItem::action("New Search", NewSearch),
1349 // ],
1350 // cx,
1351 // );
1352 // });
1353
1354 // self.tab_bar_context_menu.kind = TabBarContextMenuKind::New;
1355 // }
1356
1357 // fn deploy_tab_context_menu(
1358 // &mut self,
1359 // position: Vector2F,
1360 // target_item_id: usize,
1361 // cx: &mut ViewContext<Self>,
1362 // ) {
1363 // let active_item_id = self.items[self.active_item_index].id();
1364 // let is_active_item = target_item_id == active_item_id;
1365 // let target_pane = cx.weak_handle();
1366
1367 // // 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
1368
1369 // self.tab_context_menu.update(cx, |menu, cx| {
1370 // menu.show(
1371 // position,
1372 // AnchorCorner::TopLeft,
1373 // if is_active_item {
1374 // vec![
1375 // ContextMenuItem::action(
1376 // "Close Active Item",
1377 // CloseActiveItem { save_intent: None },
1378 // ),
1379 // ContextMenuItem::action("Close Inactive Items", CloseInactiveItems),
1380 // ContextMenuItem::action("Close Clean Items", CloseCleanItems),
1381 // ContextMenuItem::action("Close Items To The Left", CloseItemsToTheLeft),
1382 // ContextMenuItem::action("Close Items To The Right", CloseItemsToTheRight),
1383 // ContextMenuItem::action(
1384 // "Close All Items",
1385 // CloseAllItems { save_intent: None },
1386 // ),
1387 // ]
1388 // } else {
1389 // // 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.
1390 // vec![
1391 // ContextMenuItem::handler("Close Inactive Item", {
1392 // let pane = target_pane.clone();
1393 // move |cx| {
1394 // if let Some(pane) = pane.upgrade(cx) {
1395 // pane.update(cx, |pane, cx| {
1396 // pane.close_item_by_id(
1397 // target_item_id,
1398 // SaveIntent::Close,
1399 // cx,
1400 // )
1401 // .detach_and_log_err(cx);
1402 // })
1403 // }
1404 // }
1405 // }),
1406 // ContextMenuItem::action("Close Inactive Items", CloseInactiveItems),
1407 // ContextMenuItem::action("Close Clean Items", CloseCleanItems),
1408 // ContextMenuItem::handler("Close Items To The Left", {
1409 // let pane = target_pane.clone();
1410 // move |cx| {
1411 // if let Some(pane) = pane.upgrade(cx) {
1412 // pane.update(cx, |pane, cx| {
1413 // pane.close_items_to_the_left_by_id(target_item_id, cx)
1414 // .detach_and_log_err(cx);
1415 // })
1416 // }
1417 // }
1418 // }),
1419 // ContextMenuItem::handler("Close Items To The Right", {
1420 // let pane = target_pane.clone();
1421 // move |cx| {
1422 // if let Some(pane) = pane.upgrade(cx) {
1423 // pane.update(cx, |pane, cx| {
1424 // pane.close_items_to_the_right_by_id(target_item_id, cx)
1425 // .detach_and_log_err(cx);
1426 // })
1427 // }
1428 // }
1429 // }),
1430 // ContextMenuItem::action(
1431 // "Close All Items",
1432 // CloseAllItems { save_intent: None },
1433 // ),
1434 // ]
1435 // },
1436 // cx,
1437 // );
1438 // });
1439 // }
1440
1441 pub fn toolbar(&self) -> &View<Toolbar> {
1442 &self.toolbar
1443 }
1444
1445 pub fn handle_deleted_project_item(
1446 &mut self,
1447 entry_id: ProjectEntryId,
1448 cx: &mut ViewContext<Pane>,
1449 ) -> Option<()> {
1450 let (item_index_to_delete, item_id) = self.items().enumerate().find_map(|(i, item)| {
1451 if item.is_singleton(cx) && item.project_entry_ids(cx).as_slice() == [entry_id] {
1452 Some((i, item.item_id()))
1453 } else {
1454 None
1455 }
1456 })?;
1457
1458 self.remove_item(item_index_to_delete, false, cx);
1459 self.nav_history.remove_item(item_id);
1460
1461 Some(())
1462 }
1463
1464 fn update_toolbar(&mut self, cx: &mut ViewContext<Self>) {
1465 let active_item = self
1466 .items
1467 .get(self.active_item_index)
1468 .map(|item| item.as_ref());
1469 self.toolbar.update(cx, |toolbar, cx| {
1470 toolbar.set_active_item(active_item, cx);
1471 });
1472 }
1473
1474 fn update_status_bar(&mut self, cx: &mut ViewContext<Self>) {
1475 let workspace = self.workspace.clone();
1476 let pane = cx.view().clone();
1477
1478 cx.window_context().defer(move |cx| {
1479 let Ok(status_bar) = workspace.update(cx, |workspace, _| workspace.status_bar.clone())
1480 else {
1481 return;
1482 };
1483
1484 status_bar.update(cx, move |status_bar, cx| {
1485 status_bar.set_active_pane(&pane, cx);
1486 });
1487 });
1488 }
1489
1490 fn render_tab(
1491 &self,
1492 ix: usize,
1493 item: &Box<dyn ItemHandle>,
1494 detail: usize,
1495 cx: &mut ViewContext<'_, Pane>,
1496 ) -> impl IntoElement {
1497 let is_active = ix == self.active_item_index;
1498
1499 let label = item.tab_content(Some(detail), is_active, cx);
1500 let close_side = &ItemSettings::get_global(cx).close_position;
1501
1502 let indicator = maybe!({
1503 let indicator_color = match (item.has_conflict(cx), item.is_dirty(cx)) {
1504 (true, _) => Color::Warning,
1505 (_, true) => Color::Accent,
1506 (false, false) => return None,
1507 };
1508
1509 Some(Indicator::dot().color(indicator_color))
1510 });
1511
1512 let item_id = item.item_id();
1513 let is_first_item = ix == 0;
1514 let is_last_item = ix == self.items.len() - 1;
1515 let position_relative_to_active_item = ix.cmp(&self.active_item_index);
1516
1517 let tab = Tab::new(ix)
1518 .position(if is_first_item {
1519 TabPosition::First
1520 } else if is_last_item {
1521 TabPosition::Last
1522 } else {
1523 TabPosition::Middle(position_relative_to_active_item)
1524 })
1525 .close_side(match close_side {
1526 ClosePosition::Left => ui::TabCloseSide::Start,
1527 ClosePosition::Right => ui::TabCloseSide::End,
1528 })
1529 .selected(is_active)
1530 .on_click(
1531 cx.listener(move |pane: &mut Self, _, cx| pane.activate_item(ix, true, true, cx)),
1532 )
1533 // TODO: This should be a click listener with the middle mouse button instead of a mouse down listener.
1534 .on_mouse_down(
1535 MouseButton::Middle,
1536 cx.listener(move |pane, _event, cx| {
1537 pane.close_item_by_id(item_id, SaveIntent::Close, cx)
1538 .detach_and_log_err(cx);
1539 }),
1540 )
1541 .on_drag(
1542 DraggedTab {
1543 pane: cx.view().clone(),
1544 detail,
1545 item_id,
1546 is_active,
1547 ix,
1548 },
1549 |tab, cx| cx.new_view(|_| tab.clone()),
1550 )
1551 .drag_over::<DraggedTab>(|tab| tab.bg(cx.theme().colors().drop_target_background))
1552 .drag_over::<ProjectEntryId>(|tab| tab.bg(cx.theme().colors().drop_target_background))
1553 .when_some(self.can_drop_predicate.clone(), |this, p| {
1554 this.can_drop(move |a, cx| p(a, cx))
1555 })
1556 .on_drop(cx.listener(move |this, dragged_tab: &DraggedTab, cx| {
1557 this.drag_split_direction = None;
1558 this.handle_tab_drop(dragged_tab, ix, cx)
1559 }))
1560 .on_drop(cx.listener(move |this, entry_id: &ProjectEntryId, cx| {
1561 this.drag_split_direction = None;
1562 this.handle_project_entry_drop(entry_id, cx)
1563 }))
1564 .on_drop(cx.listener(move |this, paths, cx| {
1565 this.drag_split_direction = None;
1566 this.handle_external_paths_drop(paths, cx)
1567 }))
1568 .when_some(item.tab_tooltip_text(cx), |tab, text| {
1569 tab.tooltip(move |cx| Tooltip::text(text.clone(), cx))
1570 })
1571 .start_slot::<Indicator>(indicator)
1572 .end_slot(
1573 IconButton::new("close tab", Icon::Close)
1574 .icon_color(Color::Muted)
1575 .size(ButtonSize::None)
1576 .icon_size(IconSize::XSmall)
1577 .on_click(cx.listener(move |pane, _, cx| {
1578 pane.close_item_by_id(item_id, SaveIntent::Close, cx)
1579 .detach_and_log_err(cx);
1580 })),
1581 )
1582 .child(label);
1583
1584 let single_entry_to_resolve = {
1585 let item_entries = self.items[ix].project_entry_ids(cx);
1586 if item_entries.len() == 1 {
1587 Some(item_entries[0])
1588 } else {
1589 None
1590 }
1591 };
1592
1593 let pane = cx.view().downgrade();
1594 right_click_menu(ix).trigger(tab).menu(move |cx| {
1595 let pane = pane.clone();
1596 ContextMenu::build(cx, move |mut menu, cx| {
1597 if let Some(pane) = pane.upgrade() {
1598 menu = menu
1599 .entry(
1600 "Close",
1601 Some(Box::new(CloseActiveItem { save_intent: None })),
1602 cx.handler_for(&pane, move |pane, cx| {
1603 pane.close_item_by_id(item_id, SaveIntent::Close, cx)
1604 .detach_and_log_err(cx);
1605 }),
1606 )
1607 .entry(
1608 "Close Others",
1609 Some(Box::new(CloseInactiveItems)),
1610 cx.handler_for(&pane, move |pane, cx| {
1611 pane.close_items(cx, SaveIntent::Close, |id| id != item_id)
1612 .detach_and_log_err(cx);
1613 }),
1614 )
1615 .separator()
1616 .entry(
1617 "Close Left",
1618 Some(Box::new(CloseItemsToTheLeft)),
1619 cx.handler_for(&pane, move |pane, cx| {
1620 pane.close_items_to_the_left_by_id(item_id, cx)
1621 .detach_and_log_err(cx);
1622 }),
1623 )
1624 .entry(
1625 "Close Right",
1626 Some(Box::new(CloseItemsToTheRight)),
1627 cx.handler_for(&pane, move |pane, cx| {
1628 pane.close_items_to_the_right_by_id(item_id, cx)
1629 .detach_and_log_err(cx);
1630 }),
1631 )
1632 .separator()
1633 .entry(
1634 "Close Clean",
1635 Some(Box::new(CloseCleanItems)),
1636 cx.handler_for(&pane, move |pane, cx| {
1637 pane.close_clean_items(&CloseCleanItems, cx)
1638 .map(|task| task.detach_and_log_err(cx));
1639 }),
1640 )
1641 .entry(
1642 "Close All",
1643 Some(Box::new(CloseAllItems { save_intent: None })),
1644 cx.handler_for(&pane, |pane, cx| {
1645 pane.close_all_items(&CloseAllItems { save_intent: None }, cx)
1646 .map(|task| task.detach_and_log_err(cx));
1647 }),
1648 );
1649
1650 if let Some(entry) = single_entry_to_resolve {
1651 let entry_id = entry.to_proto();
1652 menu = menu.separator().entry(
1653 "Reveal In Project Panel",
1654 Some(Box::new(RevealInProjectPanel { entry_id })),
1655 cx.handler_for(&pane, move |pane, cx| {
1656 pane.project.update(cx, |_, cx| {
1657 cx.emit(project::Event::RevealInProjectPanel(
1658 ProjectEntryId::from_proto(entry_id),
1659 ))
1660 });
1661 }),
1662 );
1663 }
1664 }
1665
1666 menu
1667 })
1668 })
1669 }
1670
1671 fn render_tab_bar(&mut self, cx: &mut ViewContext<'_, Pane>) -> impl IntoElement {
1672 TabBar::new("tab_bar")
1673 .track_scroll(self.tab_bar_scroll_handle.clone())
1674 .when(self.display_nav_history_buttons, |tab_bar| {
1675 tab_bar.start_child(
1676 h_stack()
1677 .gap_2()
1678 .child(
1679 IconButton::new("navigate_backward", Icon::ArrowLeft)
1680 .icon_size(IconSize::Small)
1681 .on_click({
1682 let view = cx.view().clone();
1683 move |_, cx| view.update(cx, Self::navigate_backward)
1684 })
1685 .disabled(!self.can_navigate_backward())
1686 .tooltip(|cx| Tooltip::for_action("Go Back", &GoBack, cx)),
1687 )
1688 .child(
1689 IconButton::new("navigate_forward", Icon::ArrowRight)
1690 .icon_size(IconSize::Small)
1691 .on_click({
1692 let view = cx.view().clone();
1693 move |_, cx| view.update(cx, Self::navigate_backward)
1694 })
1695 .disabled(!self.can_navigate_forward())
1696 .tooltip(|cx| Tooltip::for_action("Go Forward", &GoForward, cx)),
1697 ),
1698 )
1699 })
1700 .when(self.was_focused || self.has_focus(cx), |tab_bar| {
1701 tab_bar.end_child({
1702 let render_tab_buttons = self.render_tab_bar_buttons.clone();
1703 render_tab_buttons(self, cx)
1704 })
1705 })
1706 .children(
1707 self.items
1708 .iter()
1709 .enumerate()
1710 .zip(self.tab_details(cx))
1711 .map(|((ix, item), detail)| self.render_tab(ix, item, detail, cx)),
1712 )
1713 .child(
1714 div()
1715 .min_w_6()
1716 // HACK: This empty child is currently necessary to force the drop traget to appear
1717 // despite us setting a min width above.
1718 .child("")
1719 .h_full()
1720 .flex_grow()
1721 .drag_over::<DraggedTab>(|bar| {
1722 bar.bg(cx.theme().colors().drop_target_background)
1723 })
1724 .drag_over::<ProjectEntryId>(|bar| {
1725 bar.bg(cx.theme().colors().drop_target_background)
1726 })
1727 .on_drop(cx.listener(move |this, dragged_tab: &DraggedTab, cx| {
1728 this.drag_split_direction = None;
1729 this.handle_tab_drop(dragged_tab, this.items.len(), cx)
1730 }))
1731 .on_drop(cx.listener(move |this, entry_id: &ProjectEntryId, cx| {
1732 this.drag_split_direction = None;
1733 this.handle_project_entry_drop(entry_id, cx)
1734 }))
1735 .on_drop(cx.listener(move |this, paths, cx| {
1736 this.drag_split_direction = None;
1737 this.handle_external_paths_drop(paths, cx)
1738 })),
1739 )
1740 }
1741
1742 fn render_menu_overlay(menu: &View<ContextMenu>) -> Div {
1743 div()
1744 .absolute()
1745 .z_index(1)
1746 .bottom_0()
1747 .right_0()
1748 .size_0()
1749 .child(overlay().anchor(AnchorCorner::TopRight).child(menu.clone()))
1750 }
1751
1752 fn tab_details(&self, cx: &AppContext) -> Vec<usize> {
1753 let mut tab_details = self.items.iter().map(|_| 0).collect::<Vec<_>>();
1754
1755 let mut tab_descriptions = HashMap::default();
1756 let mut done = false;
1757 while !done {
1758 done = true;
1759
1760 // Store item indices by their tab description.
1761 for (ix, (item, detail)) in self.items.iter().zip(&tab_details).enumerate() {
1762 if let Some(description) = item.tab_description(*detail, cx) {
1763 if *detail == 0
1764 || Some(&description) != item.tab_description(detail - 1, cx).as_ref()
1765 {
1766 tab_descriptions
1767 .entry(description)
1768 .or_insert(Vec::new())
1769 .push(ix);
1770 }
1771 }
1772 }
1773
1774 // If two or more items have the same tab description, increase eir level
1775 // of detail and try again.
1776 for (_, item_ixs) in tab_descriptions.drain() {
1777 if item_ixs.len() > 1 {
1778 done = false;
1779 for ix in item_ixs {
1780 tab_details[ix] += 1;
1781 }
1782 }
1783 }
1784 }
1785
1786 tab_details
1787 }
1788
1789 pub fn set_zoomed(&mut self, zoomed: bool, cx: &mut ViewContext<Self>) {
1790 self.zoomed = zoomed;
1791 cx.notify();
1792 }
1793
1794 pub fn is_zoomed(&self) -> bool {
1795 self.zoomed
1796 }
1797
1798 fn handle_drag_move<T>(&mut self, event: &DragMoveEvent<T>, cx: &mut ViewContext<Self>) {
1799 if !self.can_split {
1800 return;
1801 }
1802
1803 let edge_width = cx.rem_size() * 8;
1804 let cursor = event.event.position;
1805 let direction = if cursor.x < event.bounds.left() + edge_width {
1806 Some(SplitDirection::Left)
1807 } else if cursor.x > event.bounds.right() - edge_width {
1808 Some(SplitDirection::Right)
1809 } else if cursor.y < event.bounds.top() + edge_width {
1810 Some(SplitDirection::Up)
1811 } else if cursor.y > event.bounds.bottom() - edge_width {
1812 Some(SplitDirection::Down)
1813 } else {
1814 None
1815 };
1816
1817 if direction != self.drag_split_direction {
1818 self.drag_split_direction = direction;
1819 }
1820 }
1821
1822 fn handle_tab_drop(
1823 &mut self,
1824 dragged_tab: &DraggedTab,
1825 ix: usize,
1826 cx: &mut ViewContext<'_, Self>,
1827 ) {
1828 if let Some(custom_drop_handle) = self.custom_drop_handle.clone() {
1829 if let ControlFlow::Break(()) = custom_drop_handle(self, dragged_tab, cx) {
1830 return;
1831 }
1832 }
1833 let mut to_pane = cx.view().clone();
1834 let split_direction = self.drag_split_direction;
1835 let item_id = dragged_tab.item_id;
1836 let from_pane = dragged_tab.pane.clone();
1837 self.workspace
1838 .update(cx, |_, cx| {
1839 cx.defer(move |workspace, cx| {
1840 if let Some(split_direction) = split_direction {
1841 to_pane = workspace.split_pane(to_pane, split_direction, cx);
1842 }
1843 workspace.move_item(from_pane, to_pane, item_id, ix, cx);
1844 });
1845 })
1846 .log_err();
1847 }
1848
1849 fn handle_project_entry_drop(
1850 &mut self,
1851 project_entry_id: &ProjectEntryId,
1852 cx: &mut ViewContext<'_, Self>,
1853 ) {
1854 if let Some(custom_drop_handle) = self.custom_drop_handle.clone() {
1855 if let ControlFlow::Break(()) = custom_drop_handle(self, project_entry_id, cx) {
1856 return;
1857 }
1858 }
1859 let mut to_pane = cx.view().clone();
1860 let split_direction = self.drag_split_direction;
1861 let project_entry_id = *project_entry_id;
1862 self.workspace
1863 .update(cx, |_, cx| {
1864 cx.defer(move |workspace, cx| {
1865 if let Some(path) = workspace
1866 .project()
1867 .read(cx)
1868 .path_for_entry(project_entry_id, cx)
1869 {
1870 if let Some(split_direction) = split_direction {
1871 to_pane = workspace.split_pane(to_pane, split_direction, cx);
1872 }
1873 workspace
1874 .open_path(path, Some(to_pane.downgrade()), true, cx)
1875 .detach_and_log_err(cx);
1876 }
1877 });
1878 })
1879 .log_err();
1880 }
1881
1882 fn handle_external_paths_drop(
1883 &mut self,
1884 paths: &ExternalPaths,
1885 cx: &mut ViewContext<'_, Self>,
1886 ) {
1887 if let Some(custom_drop_handle) = self.custom_drop_handle.clone() {
1888 if let ControlFlow::Break(()) = custom_drop_handle(self, paths, cx) {
1889 return;
1890 }
1891 }
1892 let mut to_pane = cx.view().clone();
1893 let split_direction = self.drag_split_direction;
1894 let paths = paths.paths().to_vec();
1895 self.workspace
1896 .update(cx, |_, cx| {
1897 cx.defer(move |workspace, cx| {
1898 if let Some(split_direction) = split_direction {
1899 to_pane = workspace.split_pane(to_pane, split_direction, cx);
1900 }
1901 workspace
1902 .open_paths(paths, true, Some(to_pane.downgrade()), cx)
1903 .detach();
1904 });
1905 })
1906 .log_err();
1907 }
1908
1909 pub fn display_nav_history_buttons(&mut self, display: bool) {
1910 self.display_nav_history_buttons = display;
1911 }
1912}
1913
1914impl FocusableView for Pane {
1915 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
1916 self.focus_handle.clone()
1917 }
1918}
1919
1920impl Render for Pane {
1921 fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
1922 v_stack()
1923 .key_context("Pane")
1924 .track_focus(&self.focus_handle)
1925 .size_full()
1926 .flex_none()
1927 .overflow_hidden()
1928 .on_action(cx.listener(|pane, _: &SplitLeft, cx| pane.split(SplitDirection::Left, cx)))
1929 .on_action(cx.listener(|pane, _: &SplitUp, cx| pane.split(SplitDirection::Up, cx)))
1930 .on_action(
1931 cx.listener(|pane, _: &SplitRight, cx| pane.split(SplitDirection::Right, cx)),
1932 )
1933 .on_action(cx.listener(|pane, _: &SplitDown, cx| pane.split(SplitDirection::Down, cx)))
1934 .on_action(cx.listener(|pane, _: &GoBack, cx| pane.navigate_backward(cx)))
1935 .on_action(cx.listener(|pane, _: &GoForward, cx| pane.navigate_forward(cx)))
1936 .on_action(cx.listener(Pane::toggle_zoom))
1937 .on_action(cx.listener(|pane: &mut Pane, action: &ActivateItem, cx| {
1938 pane.activate_item(action.0, true, true, cx);
1939 }))
1940 .on_action(cx.listener(|pane: &mut Pane, _: &ActivateLastItem, cx| {
1941 pane.activate_item(pane.items.len() - 1, true, true, cx);
1942 }))
1943 .on_action(cx.listener(|pane: &mut Pane, _: &ActivatePrevItem, cx| {
1944 pane.activate_prev_item(true, cx);
1945 }))
1946 .on_action(cx.listener(|pane: &mut Pane, _: &ActivateNextItem, cx| {
1947 pane.activate_next_item(true, cx);
1948 }))
1949 .on_action(
1950 cx.listener(|pane: &mut Self, action: &CloseActiveItem, cx| {
1951 pane.close_active_item(action, cx)
1952 .map(|task| task.detach_and_log_err(cx));
1953 }),
1954 )
1955 .on_action(
1956 cx.listener(|pane: &mut Self, action: &CloseInactiveItems, cx| {
1957 pane.close_inactive_items(action, cx)
1958 .map(|task| task.detach_and_log_err(cx));
1959 }),
1960 )
1961 .on_action(
1962 cx.listener(|pane: &mut Self, action: &CloseCleanItems, cx| {
1963 pane.close_clean_items(action, cx)
1964 .map(|task| task.detach_and_log_err(cx));
1965 }),
1966 )
1967 .on_action(
1968 cx.listener(|pane: &mut Self, action: &CloseItemsToTheLeft, cx| {
1969 pane.close_items_to_the_left(action, cx)
1970 .map(|task| task.detach_and_log_err(cx));
1971 }),
1972 )
1973 .on_action(
1974 cx.listener(|pane: &mut Self, action: &CloseItemsToTheRight, cx| {
1975 pane.close_items_to_the_right(action, cx)
1976 .map(|task| task.detach_and_log_err(cx));
1977 }),
1978 )
1979 .on_action(cx.listener(|pane: &mut Self, action: &CloseAllItems, cx| {
1980 pane.close_all_items(action, cx)
1981 .map(|task| task.detach_and_log_err(cx));
1982 }))
1983 .on_action(
1984 cx.listener(|pane: &mut Self, action: &CloseActiveItem, cx| {
1985 pane.close_active_item(action, cx)
1986 .map(|task| task.detach_and_log_err(cx));
1987 }),
1988 )
1989 .on_action(
1990 cx.listener(|pane: &mut Self, action: &RevealInProjectPanel, cx| {
1991 pane.project.update(cx, |_, cx| {
1992 cx.emit(project::Event::RevealInProjectPanel(
1993 ProjectEntryId::from_proto(action.entry_id),
1994 ))
1995 })
1996 }),
1997 )
1998 .when(self.active_item().is_some(), |pane| {
1999 pane.child(self.render_tab_bar(cx))
2000 })
2001 .child({
2002 let has_worktrees = self.project.read(cx).worktrees().next().is_some();
2003 // main content
2004 div()
2005 .flex_1()
2006 .relative()
2007 .group("")
2008 .on_drag_move::<DraggedTab>(cx.listener(Self::handle_drag_move))
2009 .on_drag_move::<ProjectEntryId>(cx.listener(Self::handle_drag_move))
2010 .on_drag_move::<ExternalPaths>(cx.listener(Self::handle_drag_move))
2011 .map(|div| {
2012 if let Some(item) = self.active_item() {
2013 div.v_flex()
2014 .child(self.toolbar.clone())
2015 .child(item.to_any())
2016 } else {
2017 let placeholder = div.h_flex().size_full().justify_center();
2018 if has_worktrees {
2019 placeholder
2020 } else {
2021 placeholder.child(
2022 Label::new("Open a file or project to get started.")
2023 .color(Color::Muted),
2024 )
2025 }
2026 }
2027 })
2028 .child(
2029 // drag target
2030 div()
2031 .z_index(1)
2032 .invisible()
2033 .absolute()
2034 .bg(theme::color_alpha(
2035 cx.theme().colors().drop_target_background,
2036 0.75,
2037 ))
2038 .group_drag_over::<DraggedTab>("", |style| style.visible())
2039 .group_drag_over::<ProjectEntryId>("", |style| style.visible())
2040 .group_drag_over::<ExternalPaths>("", |style| style.visible())
2041 .when_some(self.can_drop_predicate.clone(), |this, p| {
2042 this.can_drop(move |a, cx| p(a, cx))
2043 })
2044 .on_drop(cx.listener(move |this, dragged_tab, cx| {
2045 this.handle_tab_drop(dragged_tab, this.active_item_index(), cx)
2046 }))
2047 .on_drop(cx.listener(move |this, entry_id, cx| {
2048 this.handle_project_entry_drop(entry_id, cx)
2049 }))
2050 .on_drop(cx.listener(move |this, paths, cx| {
2051 this.handle_external_paths_drop(paths, cx)
2052 }))
2053 .map(|div| match self.drag_split_direction {
2054 None => div.top_0().left_0().right_0().bottom_0(),
2055 Some(SplitDirection::Up) => div.top_0().left_0().right_0().h_32(),
2056 Some(SplitDirection::Down) => {
2057 div.left_0().bottom_0().right_0().h_32()
2058 }
2059 Some(SplitDirection::Left) => {
2060 div.top_0().left_0().bottom_0().w_32()
2061 }
2062 Some(SplitDirection::Right) => {
2063 div.top_0().bottom_0().right_0().w_32()
2064 }
2065 }),
2066 )
2067 })
2068 .on_mouse_down(
2069 MouseButton::Navigate(NavigationDirection::Back),
2070 cx.listener(|pane, _, cx| {
2071 if let Some(workspace) = pane.workspace.upgrade() {
2072 let pane = cx.view().downgrade();
2073 cx.window_context().defer(move |cx| {
2074 workspace.update(cx, |workspace, cx| {
2075 workspace.go_back(pane, cx).detach_and_log_err(cx)
2076 })
2077 })
2078 }
2079 }),
2080 )
2081 .on_mouse_down(
2082 MouseButton::Navigate(NavigationDirection::Forward),
2083 cx.listener(|pane, _, cx| {
2084 if let Some(workspace) = pane.workspace.upgrade() {
2085 let pane = cx.view().downgrade();
2086 cx.window_context().defer(move |cx| {
2087 workspace.update(cx, |workspace, cx| {
2088 workspace.go_forward(pane, cx).detach_and_log_err(cx)
2089 })
2090 })
2091 }
2092 }),
2093 )
2094 }
2095}
2096
2097impl ItemNavHistory {
2098 pub fn push<D: 'static + Send + Any>(&mut self, data: Option<D>, cx: &mut WindowContext) {
2099 self.history.push(data, self.item.clone(), cx);
2100 }
2101
2102 pub fn pop_backward(&mut self, cx: &mut WindowContext) -> Option<NavigationEntry> {
2103 self.history.pop(NavigationMode::GoingBack, cx)
2104 }
2105
2106 pub fn pop_forward(&mut self, cx: &mut WindowContext) -> Option<NavigationEntry> {
2107 self.history.pop(NavigationMode::GoingForward, cx)
2108 }
2109}
2110
2111impl NavHistory {
2112 pub fn for_each_entry(
2113 &self,
2114 cx: &AppContext,
2115 mut f: impl FnMut(&NavigationEntry, (ProjectPath, Option<PathBuf>)),
2116 ) {
2117 let borrowed_history = self.0.lock();
2118 borrowed_history
2119 .forward_stack
2120 .iter()
2121 .chain(borrowed_history.backward_stack.iter())
2122 .chain(borrowed_history.closed_stack.iter())
2123 .for_each(|entry| {
2124 if let Some(project_and_abs_path) =
2125 borrowed_history.paths_by_item.get(&entry.item.id())
2126 {
2127 f(entry, project_and_abs_path.clone());
2128 } else if let Some(item) = entry.item.upgrade() {
2129 if let Some(path) = item.project_path(cx) {
2130 f(entry, (path, None));
2131 }
2132 }
2133 })
2134 }
2135
2136 pub fn set_mode(&mut self, mode: NavigationMode) {
2137 self.0.lock().mode = mode;
2138 }
2139
2140 pub fn mode(&self) -> NavigationMode {
2141 self.0.lock().mode
2142 }
2143
2144 pub fn disable(&mut self) {
2145 self.0.lock().mode = NavigationMode::Disabled;
2146 }
2147
2148 pub fn enable(&mut self) {
2149 self.0.lock().mode = NavigationMode::Normal;
2150 }
2151
2152 pub fn pop(&mut self, mode: NavigationMode, cx: &mut WindowContext) -> Option<NavigationEntry> {
2153 let mut state = self.0.lock();
2154 let entry = match mode {
2155 NavigationMode::Normal | NavigationMode::Disabled | NavigationMode::ClosingItem => {
2156 return None
2157 }
2158 NavigationMode::GoingBack => &mut state.backward_stack,
2159 NavigationMode::GoingForward => &mut state.forward_stack,
2160 NavigationMode::ReopeningClosedItem => &mut state.closed_stack,
2161 }
2162 .pop_back();
2163 if entry.is_some() {
2164 state.did_update(cx);
2165 }
2166 entry
2167 }
2168
2169 pub fn push<D: 'static + Send + Any>(
2170 &mut self,
2171 data: Option<D>,
2172 item: Arc<dyn WeakItemHandle>,
2173 cx: &mut WindowContext,
2174 ) {
2175 let state = &mut *self.0.lock();
2176 match state.mode {
2177 NavigationMode::Disabled => {}
2178 NavigationMode::Normal | NavigationMode::ReopeningClosedItem => {
2179 if state.backward_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2180 state.backward_stack.pop_front();
2181 }
2182 state.backward_stack.push_back(NavigationEntry {
2183 item,
2184 data: data.map(|data| Box::new(data) as Box<dyn Any + Send>),
2185 timestamp: state.next_timestamp.fetch_add(1, Ordering::SeqCst),
2186 });
2187 state.forward_stack.clear();
2188 }
2189 NavigationMode::GoingBack => {
2190 if state.forward_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2191 state.forward_stack.pop_front();
2192 }
2193 state.forward_stack.push_back(NavigationEntry {
2194 item,
2195 data: data.map(|data| Box::new(data) as Box<dyn Any + Send>),
2196 timestamp: state.next_timestamp.fetch_add(1, Ordering::SeqCst),
2197 });
2198 }
2199 NavigationMode::GoingForward => {
2200 if state.backward_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2201 state.backward_stack.pop_front();
2202 }
2203 state.backward_stack.push_back(NavigationEntry {
2204 item,
2205 data: data.map(|data| Box::new(data) as Box<dyn Any + Send>),
2206 timestamp: state.next_timestamp.fetch_add(1, Ordering::SeqCst),
2207 });
2208 }
2209 NavigationMode::ClosingItem => {
2210 if state.closed_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2211 state.closed_stack.pop_front();
2212 }
2213 state.closed_stack.push_back(NavigationEntry {
2214 item,
2215 data: data.map(|data| Box::new(data) as Box<dyn Any + Send>),
2216 timestamp: state.next_timestamp.fetch_add(1, Ordering::SeqCst),
2217 });
2218 }
2219 }
2220 state.did_update(cx);
2221 }
2222
2223 pub fn remove_item(&mut self, item_id: EntityId) {
2224 let mut state = self.0.lock();
2225 state.paths_by_item.remove(&item_id);
2226 state
2227 .backward_stack
2228 .retain(|entry| entry.item.id() != item_id);
2229 state
2230 .forward_stack
2231 .retain(|entry| entry.item.id() != item_id);
2232 state
2233 .closed_stack
2234 .retain(|entry| entry.item.id() != item_id);
2235 }
2236
2237 pub fn path_for_item(&self, item_id: EntityId) -> Option<(ProjectPath, Option<PathBuf>)> {
2238 self.0.lock().paths_by_item.get(&item_id).cloned()
2239 }
2240}
2241
2242impl NavHistoryState {
2243 pub fn did_update(&self, cx: &mut WindowContext) {
2244 if let Some(pane) = self.pane.upgrade() {
2245 cx.defer(move |cx| {
2246 pane.update(cx, |pane, cx| pane.history_updated(cx));
2247 });
2248 }
2249 }
2250}
2251
2252fn dirty_message_for(buffer_path: Option<ProjectPath>) -> String {
2253 let path = buffer_path
2254 .as_ref()
2255 .and_then(|p| p.path.to_str())
2256 .unwrap_or(&"This buffer");
2257 let path = truncate_and_remove_front(path, 80);
2258 format!("{path} contains unsaved edits. Do you want to save it?")
2259}
2260
2261#[cfg(test)]
2262mod tests {
2263 use super::*;
2264 use crate::item::test::{TestItem, TestProjectItem};
2265 use gpui::{TestAppContext, VisualTestContext};
2266 use project::FakeFs;
2267 use settings::SettingsStore;
2268 use theme::LoadThemes;
2269
2270 #[gpui::test]
2271 async fn test_remove_active_empty(cx: &mut TestAppContext) {
2272 init_test(cx);
2273 let fs = FakeFs::new(cx.executor());
2274
2275 let project = Project::test(fs, None, cx).await;
2276 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2277 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2278
2279 pane.update(cx, |pane, cx| {
2280 assert!(pane
2281 .close_active_item(&CloseActiveItem { save_intent: None }, cx)
2282 .is_none())
2283 });
2284 }
2285
2286 #[gpui::test]
2287 async fn test_add_item_with_new_item(cx: &mut TestAppContext) {
2288 init_test(cx);
2289 let fs = FakeFs::new(cx.executor());
2290
2291 let project = Project::test(fs, None, cx).await;
2292 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2293 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2294
2295 // 1. Add with a destination index
2296 // a. Add before the active item
2297 set_labeled_items(&pane, ["A", "B*", "C"], cx);
2298 pane.update(cx, |pane, cx| {
2299 pane.add_item(
2300 Box::new(cx.new_view(|cx| TestItem::new(cx).with_label("D"))),
2301 false,
2302 false,
2303 Some(0),
2304 cx,
2305 );
2306 });
2307 assert_item_labels(&pane, ["D*", "A", "B", "C"], cx);
2308
2309 // b. Add after the active item
2310 set_labeled_items(&pane, ["A", "B*", "C"], cx);
2311 pane.update(cx, |pane, cx| {
2312 pane.add_item(
2313 Box::new(cx.new_view(|cx| TestItem::new(cx).with_label("D"))),
2314 false,
2315 false,
2316 Some(2),
2317 cx,
2318 );
2319 });
2320 assert_item_labels(&pane, ["A", "B", "D*", "C"], cx);
2321
2322 // c. Add at the end of the item list (including off the length)
2323 set_labeled_items(&pane, ["A", "B*", "C"], cx);
2324 pane.update(cx, |pane, cx| {
2325 pane.add_item(
2326 Box::new(cx.new_view(|cx| TestItem::new(cx).with_label("D"))),
2327 false,
2328 false,
2329 Some(5),
2330 cx,
2331 );
2332 });
2333 assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2334
2335 // 2. Add without a destination index
2336 // a. Add with active item at the start of the item list
2337 set_labeled_items(&pane, ["A*", "B", "C"], cx);
2338 pane.update(cx, |pane, cx| {
2339 pane.add_item(
2340 Box::new(cx.new_view(|cx| TestItem::new(cx).with_label("D"))),
2341 false,
2342 false,
2343 None,
2344 cx,
2345 );
2346 });
2347 set_labeled_items(&pane, ["A", "D*", "B", "C"], cx);
2348
2349 // b. Add with active item at the end of the item list
2350 set_labeled_items(&pane, ["A", "B", "C*"], cx);
2351 pane.update(cx, |pane, cx| {
2352 pane.add_item(
2353 Box::new(cx.new_view(|cx| TestItem::new(cx).with_label("D"))),
2354 false,
2355 false,
2356 None,
2357 cx,
2358 );
2359 });
2360 assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2361 }
2362
2363 #[gpui::test]
2364 async fn test_add_item_with_existing_item(cx: &mut TestAppContext) {
2365 init_test(cx);
2366 let fs = FakeFs::new(cx.executor());
2367
2368 let project = Project::test(fs, None, cx).await;
2369 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2370 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2371
2372 // 1. Add with a destination index
2373 // 1a. Add before the active item
2374 let [_, _, _, d] = set_labeled_items(&pane, ["A", "B*", "C", "D"], cx);
2375 pane.update(cx, |pane, cx| {
2376 pane.add_item(d, false, false, Some(0), cx);
2377 });
2378 assert_item_labels(&pane, ["D*", "A", "B", "C"], cx);
2379
2380 // 1b. Add after the active item
2381 let [_, _, _, d] = set_labeled_items(&pane, ["A", "B*", "C", "D"], cx);
2382 pane.update(cx, |pane, cx| {
2383 pane.add_item(d, false, false, Some(2), cx);
2384 });
2385 assert_item_labels(&pane, ["A", "B", "D*", "C"], cx);
2386
2387 // 1c. Add at the end of the item list (including off the length)
2388 let [a, _, _, _] = set_labeled_items(&pane, ["A", "B*", "C", "D"], cx);
2389 pane.update(cx, |pane, cx| {
2390 pane.add_item(a, false, false, Some(5), cx);
2391 });
2392 assert_item_labels(&pane, ["B", "C", "D", "A*"], cx);
2393
2394 // 1d. Add same item to active index
2395 let [_, b, _] = set_labeled_items(&pane, ["A", "B*", "C"], cx);
2396 pane.update(cx, |pane, cx| {
2397 pane.add_item(b, false, false, Some(1), cx);
2398 });
2399 assert_item_labels(&pane, ["A", "B*", "C"], cx);
2400
2401 // 1e. Add item to index after same item in last position
2402 let [_, _, c] = set_labeled_items(&pane, ["A", "B*", "C"], cx);
2403 pane.update(cx, |pane, cx| {
2404 pane.add_item(c, false, false, Some(2), cx);
2405 });
2406 assert_item_labels(&pane, ["A", "B", "C*"], cx);
2407
2408 // 2. Add without a destination index
2409 // 2a. Add with active item at the start of the item list
2410 let [_, _, _, d] = set_labeled_items(&pane, ["A*", "B", "C", "D"], cx);
2411 pane.update(cx, |pane, cx| {
2412 pane.add_item(d, false, false, None, cx);
2413 });
2414 assert_item_labels(&pane, ["A", "D*", "B", "C"], cx);
2415
2416 // 2b. Add with active item at the end of the item list
2417 let [a, _, _, _] = set_labeled_items(&pane, ["A", "B", "C", "D*"], cx);
2418 pane.update(cx, |pane, cx| {
2419 pane.add_item(a, false, false, None, cx);
2420 });
2421 assert_item_labels(&pane, ["B", "C", "D", "A*"], cx);
2422
2423 // 2c. Add active item to active item at end of list
2424 let [_, _, c] = set_labeled_items(&pane, ["A", "B", "C*"], cx);
2425 pane.update(cx, |pane, cx| {
2426 pane.add_item(c, false, false, None, cx);
2427 });
2428 assert_item_labels(&pane, ["A", "B", "C*"], cx);
2429
2430 // 2d. Add active item to active item at start of list
2431 let [a, _, _] = set_labeled_items(&pane, ["A*", "B", "C"], cx);
2432 pane.update(cx, |pane, cx| {
2433 pane.add_item(a, false, false, None, cx);
2434 });
2435 assert_item_labels(&pane, ["A*", "B", "C"], cx);
2436 }
2437
2438 #[gpui::test]
2439 async fn test_add_item_with_same_project_entries(cx: &mut TestAppContext) {
2440 init_test(cx);
2441 let fs = FakeFs::new(cx.executor());
2442
2443 let project = Project::test(fs, None, cx).await;
2444 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2445 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2446
2447 // singleton view
2448 pane.update(cx, |pane, cx| {
2449 pane.add_item(
2450 Box::new(cx.new_view(|cx| {
2451 TestItem::new(cx)
2452 .with_singleton(true)
2453 .with_label("buffer 1")
2454 .with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
2455 })),
2456 false,
2457 false,
2458 None,
2459 cx,
2460 );
2461 });
2462 assert_item_labels(&pane, ["buffer 1*"], cx);
2463
2464 // new singleton view with the same project entry
2465 pane.update(cx, |pane, cx| {
2466 pane.add_item(
2467 Box::new(cx.new_view(|cx| {
2468 TestItem::new(cx)
2469 .with_singleton(true)
2470 .with_label("buffer 1")
2471 .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
2472 })),
2473 false,
2474 false,
2475 None,
2476 cx,
2477 );
2478 });
2479 assert_item_labels(&pane, ["buffer 1*"], cx);
2480
2481 // new singleton view with different project entry
2482 pane.update(cx, |pane, cx| {
2483 pane.add_item(
2484 Box::new(cx.new_view(|cx| {
2485 TestItem::new(cx)
2486 .with_singleton(true)
2487 .with_label("buffer 2")
2488 .with_project_items(&[TestProjectItem::new(2, "2.txt", cx)])
2489 })),
2490 false,
2491 false,
2492 None,
2493 cx,
2494 );
2495 });
2496 assert_item_labels(&pane, ["buffer 1", "buffer 2*"], cx);
2497
2498 // new multibuffer view with the same project entry
2499 pane.update(cx, |pane, cx| {
2500 pane.add_item(
2501 Box::new(cx.new_view(|cx| {
2502 TestItem::new(cx)
2503 .with_singleton(false)
2504 .with_label("multibuffer 1")
2505 .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
2506 })),
2507 false,
2508 false,
2509 None,
2510 cx,
2511 );
2512 });
2513 assert_item_labels(&pane, ["buffer 1", "buffer 2", "multibuffer 1*"], cx);
2514
2515 // another multibuffer view with the same project entry
2516 pane.update(cx, |pane, cx| {
2517 pane.add_item(
2518 Box::new(cx.new_view(|cx| {
2519 TestItem::new(cx)
2520 .with_singleton(false)
2521 .with_label("multibuffer 1b")
2522 .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
2523 })),
2524 false,
2525 false,
2526 None,
2527 cx,
2528 );
2529 });
2530 assert_item_labels(
2531 &pane,
2532 ["buffer 1", "buffer 2", "multibuffer 1", "multibuffer 1b*"],
2533 cx,
2534 );
2535 }
2536
2537 #[gpui::test]
2538 async fn test_remove_item_ordering(cx: &mut TestAppContext) {
2539 init_test(cx);
2540 let fs = FakeFs::new(cx.executor());
2541
2542 let project = Project::test(fs, None, cx).await;
2543 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2544 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2545
2546 add_labeled_item(&pane, "A", false, cx);
2547 add_labeled_item(&pane, "B", false, cx);
2548 add_labeled_item(&pane, "C", false, cx);
2549 add_labeled_item(&pane, "D", false, cx);
2550 assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2551
2552 pane.update(cx, |pane, cx| pane.activate_item(1, false, false, cx));
2553 add_labeled_item(&pane, "1", false, cx);
2554 assert_item_labels(&pane, ["A", "B", "1*", "C", "D"], cx);
2555
2556 pane.update(cx, |pane, cx| {
2557 pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2558 })
2559 .unwrap()
2560 .await
2561 .unwrap();
2562 assert_item_labels(&pane, ["A", "B*", "C", "D"], cx);
2563
2564 pane.update(cx, |pane, cx| pane.activate_item(3, false, false, cx));
2565 assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2566
2567 pane.update(cx, |pane, cx| {
2568 pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2569 })
2570 .unwrap()
2571 .await
2572 .unwrap();
2573 assert_item_labels(&pane, ["A", "B*", "C"], cx);
2574
2575 pane.update(cx, |pane, cx| {
2576 pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2577 })
2578 .unwrap()
2579 .await
2580 .unwrap();
2581 assert_item_labels(&pane, ["A", "C*"], cx);
2582
2583 pane.update(cx, |pane, cx| {
2584 pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2585 })
2586 .unwrap()
2587 .await
2588 .unwrap();
2589 assert_item_labels(&pane, ["A*"], cx);
2590 }
2591
2592 #[gpui::test]
2593 async fn test_close_inactive_items(cx: &mut TestAppContext) {
2594 init_test(cx);
2595 let fs = FakeFs::new(cx.executor());
2596
2597 let project = Project::test(fs, None, cx).await;
2598 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2599 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2600
2601 set_labeled_items(&pane, ["A", "B", "C*", "D", "E"], cx);
2602
2603 pane.update(cx, |pane, cx| {
2604 pane.close_inactive_items(&CloseInactiveItems, cx)
2605 })
2606 .unwrap()
2607 .await
2608 .unwrap();
2609 assert_item_labels(&pane, ["C*"], cx);
2610 }
2611
2612 #[gpui::test]
2613 async fn test_close_clean_items(cx: &mut TestAppContext) {
2614 init_test(cx);
2615 let fs = FakeFs::new(cx.executor());
2616
2617 let project = Project::test(fs, None, cx).await;
2618 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2619 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2620
2621 add_labeled_item(&pane, "A", true, cx);
2622 add_labeled_item(&pane, "B", false, cx);
2623 add_labeled_item(&pane, "C", true, cx);
2624 add_labeled_item(&pane, "D", false, cx);
2625 add_labeled_item(&pane, "E", false, cx);
2626 assert_item_labels(&pane, ["A^", "B", "C^", "D", "E*"], cx);
2627
2628 pane.update(cx, |pane, cx| pane.close_clean_items(&CloseCleanItems, cx))
2629 .unwrap()
2630 .await
2631 .unwrap();
2632 assert_item_labels(&pane, ["A^", "C*^"], cx);
2633 }
2634
2635 #[gpui::test]
2636 async fn test_close_items_to_the_left(cx: &mut TestAppContext) {
2637 init_test(cx);
2638 let fs = FakeFs::new(cx.executor());
2639
2640 let project = Project::test(fs, None, cx).await;
2641 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2642 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2643
2644 set_labeled_items(&pane, ["A", "B", "C*", "D", "E"], cx);
2645
2646 pane.update(cx, |pane, cx| {
2647 pane.close_items_to_the_left(&CloseItemsToTheLeft, cx)
2648 })
2649 .unwrap()
2650 .await
2651 .unwrap();
2652 assert_item_labels(&pane, ["C*", "D", "E"], cx);
2653 }
2654
2655 #[gpui::test]
2656 async fn test_close_items_to_the_right(cx: &mut TestAppContext) {
2657 init_test(cx);
2658 let fs = FakeFs::new(cx.executor());
2659
2660 let project = Project::test(fs, None, cx).await;
2661 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2662 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2663
2664 set_labeled_items(&pane, ["A", "B", "C*", "D", "E"], cx);
2665
2666 pane.update(cx, |pane, cx| {
2667 pane.close_items_to_the_right(&CloseItemsToTheRight, cx)
2668 })
2669 .unwrap()
2670 .await
2671 .unwrap();
2672 assert_item_labels(&pane, ["A", "B", "C*"], cx);
2673 }
2674
2675 #[gpui::test]
2676 async fn test_close_all_items(cx: &mut TestAppContext) {
2677 init_test(cx);
2678 let fs = FakeFs::new(cx.executor());
2679
2680 let project = Project::test(fs, None, cx).await;
2681 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2682 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2683
2684 add_labeled_item(&pane, "A", false, cx);
2685 add_labeled_item(&pane, "B", false, cx);
2686 add_labeled_item(&pane, "C", false, cx);
2687 assert_item_labels(&pane, ["A", "B", "C*"], cx);
2688
2689 pane.update(cx, |pane, cx| {
2690 pane.close_all_items(&CloseAllItems { save_intent: None }, cx)
2691 })
2692 .unwrap()
2693 .await
2694 .unwrap();
2695 assert_item_labels(&pane, [], cx);
2696
2697 add_labeled_item(&pane, "A", true, cx);
2698 add_labeled_item(&pane, "B", true, cx);
2699 add_labeled_item(&pane, "C", true, cx);
2700 assert_item_labels(&pane, ["A^", "B^", "C*^"], cx);
2701
2702 let save = pane
2703 .update(cx, |pane, cx| {
2704 pane.close_all_items(&CloseAllItems { save_intent: None }, cx)
2705 })
2706 .unwrap();
2707
2708 cx.executor().run_until_parked();
2709 cx.simulate_prompt_answer(2);
2710 save.await.unwrap();
2711 assert_item_labels(&pane, [], cx);
2712 }
2713
2714 fn init_test(cx: &mut TestAppContext) {
2715 cx.update(|cx| {
2716 let settings_store = SettingsStore::test(cx);
2717 cx.set_global(settings_store);
2718 theme::init(LoadThemes::JustBase, cx);
2719 crate::init_settings(cx);
2720 Project::init_settings(cx);
2721 });
2722 }
2723
2724 fn add_labeled_item(
2725 pane: &View<Pane>,
2726 label: &str,
2727 is_dirty: bool,
2728 cx: &mut VisualTestContext,
2729 ) -> Box<View<TestItem>> {
2730 pane.update(cx, |pane, cx| {
2731 let labeled_item = Box::new(
2732 cx.new_view(|cx| TestItem::new(cx).with_label(label).with_dirty(is_dirty)),
2733 );
2734 pane.add_item(labeled_item.clone(), false, false, None, cx);
2735 labeled_item
2736 })
2737 }
2738
2739 fn set_labeled_items<const COUNT: usize>(
2740 pane: &View<Pane>,
2741 labels: [&str; COUNT],
2742 cx: &mut VisualTestContext,
2743 ) -> [Box<View<TestItem>>; COUNT] {
2744 pane.update(cx, |pane, cx| {
2745 pane.items.clear();
2746 let mut active_item_index = 0;
2747
2748 let mut index = 0;
2749 let items = labels.map(|mut label| {
2750 if label.ends_with("*") {
2751 label = label.trim_end_matches("*");
2752 active_item_index = index;
2753 }
2754
2755 let labeled_item = Box::new(cx.new_view(|cx| TestItem::new(cx).with_label(label)));
2756 pane.add_item(labeled_item.clone(), false, false, None, cx);
2757 index += 1;
2758 labeled_item
2759 });
2760
2761 pane.activate_item(active_item_index, false, false, cx);
2762
2763 items
2764 })
2765 }
2766
2767 // Assert the item label, with the active item label suffixed with a '*'
2768 fn assert_item_labels<const COUNT: usize>(
2769 pane: &View<Pane>,
2770 expected_states: [&str; COUNT],
2771 cx: &mut VisualTestContext,
2772 ) {
2773 pane.update(cx, |pane, cx| {
2774 let actual_states = pane
2775 .items
2776 .iter()
2777 .enumerate()
2778 .map(|(ix, item)| {
2779 let mut state = item
2780 .to_any()
2781 .downcast::<TestItem>()
2782 .unwrap()
2783 .read(cx)
2784 .label
2785 .clone();
2786 if ix == pane.active_item_index {
2787 state.push('*');
2788 }
2789 if item.is_dirty(cx) {
2790 state.push('^');
2791 }
2792 state
2793 })
2794 .collect::<Vec<_>>();
2795
2796 assert_eq!(
2797 actual_states, expected_states,
2798 "pane items do not match expectation"
2799 );
2800 })
2801 }
2802}
2803
2804impl Render for DraggedTab {
2805 fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
2806 let ui_font = ThemeSettings::get_global(cx).ui_font.family.clone();
2807 let item = &self.pane.read(cx).items[self.ix];
2808 let label = item.tab_content(Some(self.detail), false, cx);
2809 Tab::new("")
2810 .selected(self.is_active)
2811 .child(label)
2812 .render(cx)
2813 .font(ui_font)
2814 }
2815}