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