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