1use crate::{
2 item::{
3 ClosePosition, Item, ItemHandle, ItemSettings, PreviewTabsSettings, TabContentParams,
4 WeakItemHandle,
5 },
6 toolbar::Toolbar,
7 workspace_settings::{AutosaveSetting, TabBarSettings, WorkspaceSettings},
8 CloseWindow, NewCenterTerminal, NewFile, NewSearch, OpenInTerminal, OpenTerminal, OpenVisible,
9 SplitDirection, ToggleZoom, Workspace,
10};
11use anyhow::Result;
12use collections::{HashMap, HashSet, VecDeque};
13use futures::{stream::FuturesUnordered, StreamExt};
14use gpui::{
15 actions, anchored, deferred, impl_actions, prelude::*, Action, AnchorCorner, AnyElement,
16 AppContext, AsyncWindowContext, ClickEvent, DismissEvent, Div, DragMoveEvent, EntityId,
17 EventEmitter, ExternalPaths, FocusHandle, FocusableView, KeyContext, Model, MouseButton,
18 MouseDownEvent, NavigationDirection, Pixels, Point, PromptLevel, Render, ScrollHandle,
19 Subscription, Task, View, ViewContext, VisualContext, WeakFocusHandle, WeakView, WindowContext,
20};
21use parking_lot::Mutex;
22use project::{Project, ProjectEntryId, ProjectPath};
23use serde::Deserialize;
24use settings::{Settings, SettingsStore};
25use std::{
26 any::Any,
27 cmp, fmt, mem,
28 ops::ControlFlow,
29 path::{Path, PathBuf},
30 rc::Rc,
31 sync::{
32 atomic::{AtomicUsize, Ordering},
33 Arc,
34 },
35};
36use theme::ThemeSettings;
37
38use ui::{
39 prelude::*, right_click_menu, ButtonSize, Color, IconButton, IconButtonShape, IconName,
40 IconSize, Indicator, Label, Tab, TabBar, TabPosition, Tooltip,
41};
42use ui::{v_flex, ContextMenu};
43use util::{maybe, truncate_and_remove_front, ResultExt};
44
45#[derive(PartialEq, Clone, Copy, Deserialize, Debug)]
46#[serde(rename_all = "camelCase")]
47pub enum SaveIntent {
48 /// write all files (even if unchanged)
49 /// prompt before overwriting on-disk changes
50 Save,
51 /// same as Save, but without auto formatting
52 SaveWithoutFormat,
53 /// write any files that have local changes
54 /// prompt before overwriting on-disk changes
55 SaveAll,
56 /// always prompt for a new path
57 SaveAs,
58 /// prompt "you have unsaved changes" before writing
59 Close,
60 /// write all dirty files, don't prompt on conflict
61 Overwrite,
62 /// skip all save-related behavior
63 Skip,
64}
65
66#[derive(Clone, Deserialize, PartialEq, Debug)]
67pub struct ActivateItem(pub usize);
68
69#[derive(Clone, PartialEq, Debug, Deserialize, Default)]
70#[serde(rename_all = "camelCase")]
71pub struct CloseActiveItem {
72 pub save_intent: Option<SaveIntent>,
73}
74
75#[derive(Clone, PartialEq, Debug, Deserialize, Default)]
76#[serde(rename_all = "camelCase")]
77pub struct CloseInactiveItems {
78 pub save_intent: Option<SaveIntent>,
79}
80
81#[derive(Clone, PartialEq, Debug, Deserialize, Default)]
82#[serde(rename_all = "camelCase")]
83pub struct CloseAllItems {
84 pub save_intent: Option<SaveIntent>,
85}
86
87#[derive(Clone, PartialEq, Debug, Deserialize, Default)]
88#[serde(rename_all = "camelCase")]
89pub struct RevealInProjectPanel {
90 pub entry_id: Option<u64>,
91}
92
93#[derive(PartialEq, Clone, Deserialize)]
94pub struct DeploySearch {
95 #[serde(default)]
96 pub replace_enabled: bool,
97}
98
99impl_actions!(
100 pane,
101 [
102 CloseAllItems,
103 CloseActiveItem,
104 CloseInactiveItems,
105 ActivateItem,
106 RevealInProjectPanel,
107 DeploySearch,
108 ]
109);
110
111actions!(
112 pane,
113 [
114 ActivatePrevItem,
115 ActivateNextItem,
116 ActivateLastItem,
117 CloseCleanItems,
118 CloseItemsToTheLeft,
119 CloseItemsToTheRight,
120 GoBack,
121 GoForward,
122 ReopenClosedItem,
123 SplitLeft,
124 SplitUp,
125 SplitRight,
126 SplitDown,
127 TogglePreviewTab,
128 ]
129);
130
131impl DeploySearch {
132 pub fn find() -> Self {
133 Self {
134 replace_enabled: false,
135 }
136 }
137}
138
139const MAX_NAVIGATION_HISTORY_LEN: usize = 1024;
140
141pub enum Event {
142 AddItem { item: Box<dyn ItemHandle> },
143 ActivateItem { local: bool },
144 Remove,
145 RemoveItem { item_id: EntityId },
146 Split(SplitDirection),
147 ChangeItemTitle,
148 Focus,
149 ZoomIn,
150 ZoomOut,
151}
152
153impl fmt::Debug for Event {
154 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
155 match self {
156 Event::AddItem { item } => f
157 .debug_struct("AddItem")
158 .field("item", &item.item_id())
159 .finish(),
160 Event::ActivateItem { local } => f
161 .debug_struct("ActivateItem")
162 .field("local", local)
163 .finish(),
164 Event::Remove => f.write_str("Remove"),
165 Event::RemoveItem { item_id } => f
166 .debug_struct("RemoveItem")
167 .field("item_id", item_id)
168 .finish(),
169 Event::Split(direction) => f
170 .debug_struct("Split")
171 .field("direction", direction)
172 .finish(),
173 Event::ChangeItemTitle => f.write_str("ChangeItemTitle"),
174 Event::Focus => f.write_str("Focus"),
175 Event::ZoomIn => f.write_str("ZoomIn"),
176 Event::ZoomOut => f.write_str("ZoomOut"),
177 }
178 }
179}
180
181/// A container for 0 to many items that are open in the workspace.
182/// Treats all items uniformly via the [`ItemHandle`] trait, whether it's an editor, search results multibuffer, terminal or something else,
183/// responsible for managing item tabs, focus and zoom states and drag and drop features.
184/// Can be split, see `PaneGroup` for more details.
185pub struct Pane {
186 focus_handle: FocusHandle,
187 items: Vec<Box<dyn ItemHandle>>,
188 activation_history: Vec<EntityId>,
189 zoomed: bool,
190 was_focused: bool,
191 active_item_index: usize,
192 preview_item_id: Option<EntityId>,
193 last_focus_handle_by_item: HashMap<EntityId, WeakFocusHandle>,
194 nav_history: NavHistory,
195 toolbar: View<Toolbar>,
196 new_item_menu: Option<View<ContextMenu>>,
197 split_item_menu: Option<View<ContextMenu>>,
198 // tab_context_menu: View<ContextMenu>,
199 pub(crate) workspace: WeakView<Workspace>,
200 project: Model<Project>,
201 drag_split_direction: Option<SplitDirection>,
202 can_drop_predicate: Option<Arc<dyn Fn(&dyn Any, &mut WindowContext) -> bool>>,
203 custom_drop_handle:
204 Option<Arc<dyn Fn(&mut Pane, &dyn Any, &mut ViewContext<Pane>) -> ControlFlow<(), ()>>>,
205 can_split: bool,
206 render_tab_bar_buttons: Rc<dyn Fn(&mut Pane, &mut ViewContext<Pane>) -> AnyElement>,
207 _subscriptions: Vec<Subscription>,
208 tab_bar_scroll_handle: ScrollHandle,
209 display_nav_history_buttons: bool,
210 double_click_dispatch_action: Box<dyn Action>,
211}
212
213pub struct ItemNavHistory {
214 history: NavHistory,
215 item: Arc<dyn WeakItemHandle>,
216 is_preview: bool,
217}
218
219#[derive(Clone)]
220pub struct NavHistory(Arc<Mutex<NavHistoryState>>);
221
222struct NavHistoryState {
223 mode: NavigationMode,
224 backward_stack: VecDeque<NavigationEntry>,
225 forward_stack: VecDeque<NavigationEntry>,
226 closed_stack: VecDeque<NavigationEntry>,
227 paths_by_item: HashMap<EntityId, (ProjectPath, Option<PathBuf>)>,
228 pane: WeakView<Pane>,
229 next_timestamp: Arc<AtomicUsize>,
230}
231
232#[derive(Debug, Copy, Clone)]
233pub enum NavigationMode {
234 Normal,
235 GoingBack,
236 GoingForward,
237 ClosingItem,
238 ReopeningClosedItem,
239 Disabled,
240}
241
242impl Default for NavigationMode {
243 fn default() -> Self {
244 Self::Normal
245 }
246}
247
248pub struct NavigationEntry {
249 pub item: Arc<dyn WeakItemHandle>,
250 pub data: Option<Box<dyn Any + Send>>,
251 pub timestamp: usize,
252 pub is_preview: bool,
253}
254
255#[derive(Clone)]
256pub struct DraggedTab {
257 pub pane: View<Pane>,
258 pub item: Box<dyn ItemHandle>,
259 pub ix: usize,
260 pub detail: usize,
261 pub is_active: bool,
262}
263
264impl EventEmitter<Event> for Pane {}
265
266impl Pane {
267 pub fn new(
268 workspace: WeakView<Workspace>,
269 project: Model<Project>,
270 next_timestamp: Arc<AtomicUsize>,
271 can_drop_predicate: Option<Arc<dyn Fn(&dyn Any, &mut WindowContext) -> bool + 'static>>,
272 double_click_dispatch_action: Box<dyn Action>,
273 cx: &mut ViewContext<Self>,
274 ) -> Self {
275 let focus_handle = cx.focus_handle();
276
277 let subscriptions = vec![
278 cx.on_focus(&focus_handle, Pane::focus_in),
279 cx.on_focus_in(&focus_handle, Pane::focus_in),
280 cx.on_focus_out(&focus_handle, Pane::focus_out),
281 cx.observe_global::<SettingsStore>(Self::settings_changed),
282 ];
283
284 let handle = cx.view().downgrade();
285 Self {
286 focus_handle,
287 items: Vec::new(),
288 activation_history: Vec::new(),
289 was_focused: false,
290 zoomed: false,
291 active_item_index: 0,
292 preview_item_id: None,
293 last_focus_handle_by_item: Default::default(),
294 nav_history: NavHistory(Arc::new(Mutex::new(NavHistoryState {
295 mode: NavigationMode::Normal,
296 backward_stack: Default::default(),
297 forward_stack: Default::default(),
298 closed_stack: Default::default(),
299 paths_by_item: Default::default(),
300 pane: handle.clone(),
301 next_timestamp,
302 }))),
303 toolbar: cx.new_view(|_| Toolbar::new()),
304 new_item_menu: None,
305 split_item_menu: None,
306 tab_bar_scroll_handle: ScrollHandle::new(),
307 drag_split_direction: None,
308 workspace,
309 project,
310 can_drop_predicate,
311 custom_drop_handle: None,
312 can_split: true,
313 render_tab_bar_buttons: Rc::new(move |pane, cx| {
314 h_flex()
315 .gap_2()
316 .child(
317 IconButton::new("plus", IconName::Plus)
318 .icon_size(IconSize::Small)
319 .icon_color(Color::Muted)
320 .on_click(cx.listener(|pane, _, cx| {
321 let menu = ContextMenu::build(cx, |menu, _| {
322 menu.action("New File", NewFile.boxed_clone())
323 .action("New Terminal", NewCenterTerminal.boxed_clone())
324 .action("New Search", NewSearch.boxed_clone())
325 });
326 cx.subscribe(&menu, |pane, _, _: &DismissEvent, cx| {
327 pane.focus(cx);
328 pane.new_item_menu = None;
329 })
330 .detach();
331 pane.new_item_menu = Some(menu);
332 }))
333 .tooltip(|cx| Tooltip::text("New...", cx)),
334 )
335 .when_some(pane.new_item_menu.as_ref(), |el, new_item_menu| {
336 el.child(Self::render_menu_overlay(new_item_menu))
337 })
338 .child(
339 IconButton::new("split", IconName::Split)
340 .icon_size(IconSize::Small)
341 .icon_color(Color::Muted)
342 .on_click(cx.listener(|pane, _, cx| {
343 let menu = ContextMenu::build(cx, |menu, _| {
344 menu.action("Split Right", SplitRight.boxed_clone())
345 .action("Split Left", SplitLeft.boxed_clone())
346 .action("Split Up", SplitUp.boxed_clone())
347 .action("Split Down", SplitDown.boxed_clone())
348 });
349 cx.subscribe(&menu, |pane, _, _: &DismissEvent, cx| {
350 pane.focus(cx);
351 pane.split_item_menu = None;
352 })
353 .detach();
354 pane.split_item_menu = Some(menu);
355 }))
356 .tooltip(|cx| Tooltip::text("Split Pane", cx)),
357 )
358 .child({
359 let zoomed = pane.is_zoomed();
360 IconButton::new("toggle_zoom", IconName::Maximize)
361 .icon_size(IconSize::Small)
362 .icon_color(Color::Muted)
363 .selected(zoomed)
364 .selected_icon(IconName::Minimize)
365 .on_click(cx.listener(|pane, _, cx| {
366 pane.toggle_zoom(&crate::ToggleZoom, cx);
367 }))
368 .tooltip(move |cx| {
369 Tooltip::for_action(
370 if zoomed { "Zoom Out" } else { "Zoom In" },
371 &ToggleZoom,
372 cx,
373 )
374 })
375 })
376 .when_some(pane.split_item_menu.as_ref(), |el, split_item_menu| {
377 el.child(Self::render_menu_overlay(split_item_menu))
378 })
379 .into_any_element()
380 }),
381 display_nav_history_buttons: TabBarSettings::get_global(cx).show_nav_history_buttons,
382 _subscriptions: subscriptions,
383 double_click_dispatch_action,
384 }
385 }
386
387 pub fn has_focus(&self, cx: &WindowContext) -> bool {
388 // We not only check whether our focus handle contains focus, but also
389 // whether the active_item might have focus, because we might have just activated an item
390 // but that hasn't rendered yet.
391 // So before the next render, we might have transferred focus
392 // to the item and `focus_handle.contains_focus` returns false because the `active_item`
393 // is not hooked up to us in the dispatch tree.
394 self.focus_handle.contains_focused(cx)
395 || self
396 .active_item()
397 .map_or(false, |item| item.focus_handle(cx).contains_focused(cx))
398 }
399
400 fn focus_in(&mut self, cx: &mut ViewContext<Self>) {
401 if !self.was_focused {
402 self.was_focused = true;
403 cx.emit(Event::Focus);
404 cx.notify();
405 }
406
407 self.toolbar.update(cx, |toolbar, cx| {
408 toolbar.focus_changed(true, cx);
409 });
410
411 if let Some(active_item) = self.active_item() {
412 if self.focus_handle.is_focused(cx) {
413 // Pane was focused directly. We need to either focus a view inside the active item,
414 // or focus the active item itself
415 if let Some(weak_last_focus_handle) =
416 self.last_focus_handle_by_item.get(&active_item.item_id())
417 {
418 if let Some(focus_handle) = weak_last_focus_handle.upgrade() {
419 focus_handle.focus(cx);
420 return;
421 }
422 }
423
424 active_item.focus_handle(cx).focus(cx);
425 } else if let Some(focused) = cx.focused() {
426 if !self.context_menu_focused(cx) {
427 self.last_focus_handle_by_item
428 .insert(active_item.item_id(), focused.downgrade());
429 }
430 }
431 }
432 }
433
434 fn context_menu_focused(&self, cx: &mut ViewContext<Self>) -> bool {
435 self.new_item_menu
436 .as_ref()
437 .or(self.split_item_menu.as_ref())
438 .map_or(false, |menu| menu.focus_handle(cx).is_focused(cx))
439 }
440
441 fn focus_out(&mut self, cx: &mut ViewContext<Self>) {
442 self.was_focused = false;
443 self.toolbar.update(cx, |toolbar, cx| {
444 toolbar.focus_changed(false, cx);
445 });
446 cx.notify();
447 }
448
449 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
450 self.display_nav_history_buttons = TabBarSettings::get_global(cx).show_nav_history_buttons;
451
452 if !PreviewTabsSettings::get_global(cx).enabled {
453 self.preview_item_id = None;
454 }
455 cx.notify();
456 }
457
458 pub fn active_item_index(&self) -> usize {
459 self.active_item_index
460 }
461
462 pub fn activation_history(&self) -> &Vec<EntityId> {
463 &self.activation_history
464 }
465
466 pub fn set_can_split(&mut self, can_split: bool, cx: &mut ViewContext<Self>) {
467 self.can_split = can_split;
468 cx.notify();
469 }
470
471 pub fn set_can_navigate(&mut self, can_navigate: bool, cx: &mut ViewContext<Self>) {
472 self.toolbar.update(cx, |toolbar, cx| {
473 toolbar.set_can_navigate(can_navigate, cx);
474 });
475 cx.notify();
476 }
477
478 pub fn set_render_tab_bar_buttons<F>(&mut self, cx: &mut ViewContext<Self>, render: F)
479 where
480 F: 'static + Fn(&mut Pane, &mut ViewContext<Pane>) -> AnyElement,
481 {
482 self.render_tab_bar_buttons = Rc::new(render);
483 cx.notify();
484 }
485
486 pub fn set_custom_drop_handle<F>(&mut self, cx: &mut ViewContext<Self>, handle: F)
487 where
488 F: 'static + Fn(&mut Pane, &dyn Any, &mut ViewContext<Pane>) -> ControlFlow<(), ()>,
489 {
490 self.custom_drop_handle = Some(Arc::new(handle));
491 cx.notify();
492 }
493
494 pub fn nav_history_for_item<T: Item>(&self, item: &View<T>) -> ItemNavHistory {
495 ItemNavHistory {
496 history: self.nav_history.clone(),
497 item: Arc::new(item.downgrade()),
498 is_preview: self.preview_item_id == Some(item.item_id()),
499 }
500 }
501
502 pub fn nav_history(&self) -> &NavHistory {
503 &self.nav_history
504 }
505
506 pub fn nav_history_mut(&mut self) -> &mut NavHistory {
507 &mut self.nav_history
508 }
509
510 pub fn disable_history(&mut self) {
511 self.nav_history.disable();
512 }
513
514 pub fn enable_history(&mut self) {
515 self.nav_history.enable();
516 }
517
518 pub fn can_navigate_backward(&self) -> bool {
519 !self.nav_history.0.lock().backward_stack.is_empty()
520 }
521
522 pub fn can_navigate_forward(&self) -> bool {
523 !self.nav_history.0.lock().forward_stack.is_empty()
524 }
525
526 fn navigate_backward(&mut self, cx: &mut ViewContext<Self>) {
527 if let Some(workspace) = self.workspace.upgrade() {
528 let pane = cx.view().downgrade();
529 cx.window_context().defer(move |cx| {
530 workspace.update(cx, |workspace, cx| {
531 workspace.go_back(pane, cx).detach_and_log_err(cx)
532 })
533 })
534 }
535 }
536
537 fn navigate_forward(&mut self, cx: &mut ViewContext<Self>) {
538 if let Some(workspace) = self.workspace.upgrade() {
539 let pane = cx.view().downgrade();
540 cx.window_context().defer(move |cx| {
541 workspace.update(cx, |workspace, cx| {
542 workspace.go_forward(pane, cx).detach_and_log_err(cx)
543 })
544 })
545 }
546 }
547
548 fn history_updated(&mut self, cx: &mut ViewContext<Self>) {
549 self.toolbar.update(cx, |_, cx| cx.notify());
550 }
551
552 pub fn preview_item_id(&self) -> Option<EntityId> {
553 self.preview_item_id
554 }
555
556 fn preview_item_idx(&self) -> Option<usize> {
557 if let Some(preview_item_id) = self.preview_item_id {
558 self.items
559 .iter()
560 .position(|item| item.item_id() == preview_item_id)
561 } else {
562 None
563 }
564 }
565
566 pub fn is_active_preview_item(&self, item_id: EntityId) -> bool {
567 self.preview_item_id == Some(item_id)
568 }
569
570 /// Marks the item with the given ID as the preview item.
571 /// This will be ignored if the global setting `preview_tabs` is disabled.
572 pub fn set_preview_item_id(&mut self, item_id: Option<EntityId>, cx: &AppContext) {
573 if PreviewTabsSettings::get_global(cx).enabled {
574 self.preview_item_id = item_id;
575 }
576 }
577
578 pub fn handle_item_edit(&mut self, item_id: EntityId, cx: &AppContext) {
579 if let Some(preview_item_id) = self.preview_item_id {
580 if preview_item_id == item_id {
581 self.set_preview_item_id(None, cx)
582 }
583 }
584 }
585
586 pub(crate) fn open_item(
587 &mut self,
588 project_entry_id: Option<ProjectEntryId>,
589 focus_item: bool,
590 allow_preview: bool,
591 cx: &mut ViewContext<Self>,
592 build_item: impl FnOnce(&mut ViewContext<Pane>) -> Box<dyn ItemHandle>,
593 ) -> Box<dyn ItemHandle> {
594 let mut existing_item = None;
595 if let Some(project_entry_id) = project_entry_id {
596 for (index, item) in self.items.iter().enumerate() {
597 if item.is_singleton(cx)
598 && item.project_entry_ids(cx).as_slice() == [project_entry_id]
599 {
600 let item = item.boxed_clone();
601 existing_item = Some((index, item));
602 break;
603 }
604 }
605 }
606
607 if let Some((index, existing_item)) = existing_item {
608 // If the item is already open, and the item is a preview item
609 // and we are not allowing items to open as preview, mark the item as persistent.
610 if let Some(preview_item_id) = self.preview_item_id {
611 if let Some(tab) = self.items.get(index) {
612 if tab.item_id() == preview_item_id && !allow_preview {
613 self.set_preview_item_id(None, cx);
614 }
615 }
616 }
617
618 self.activate_item(index, focus_item, focus_item, cx);
619 existing_item
620 } else {
621 let mut destination_index = None;
622 if allow_preview {
623 // If we are opening a new item as preview and we have an existing preview tab, remove it.
624 if let Some(item_idx) = self.preview_item_idx() {
625 let prev_active_item_index = self.active_item_index;
626 self.remove_item(item_idx, false, false, cx);
627 self.active_item_index = prev_active_item_index;
628
629 // If the item is being opened as preview and we have an existing preview tab,
630 // open the new item in the position of the existing preview tab.
631 if item_idx < self.items.len() {
632 destination_index = Some(item_idx);
633 }
634 }
635 }
636
637 let new_item = build_item(cx);
638
639 if allow_preview {
640 self.set_preview_item_id(Some(new_item.item_id()), cx);
641 }
642
643 self.add_item(new_item.clone(), true, focus_item, destination_index, cx);
644
645 new_item
646 }
647 }
648
649 pub fn add_item(
650 &mut self,
651 item: Box<dyn ItemHandle>,
652 activate_pane: bool,
653 focus_item: bool,
654 destination_index: Option<usize>,
655 cx: &mut ViewContext<Self>,
656 ) {
657 if item.is_singleton(cx) {
658 if let Some(&entry_id) = item.project_entry_ids(cx).get(0) {
659 let project = self.project.read(cx);
660 if let Some(project_path) = project.path_for_entry(entry_id, cx) {
661 let abs_path = project.absolute_path(&project_path, cx);
662 self.nav_history
663 .0
664 .lock()
665 .paths_by_item
666 .insert(item.item_id(), (project_path, abs_path));
667 }
668 }
669 }
670 // If no destination index is specified, add or move the item after the active item.
671 let mut insertion_index = {
672 cmp::min(
673 if let Some(destination_index) = destination_index {
674 destination_index
675 } else {
676 self.active_item_index + 1
677 },
678 self.items.len(),
679 )
680 };
681
682 // Does the item already exist?
683 let project_entry_id = if item.is_singleton(cx) {
684 item.project_entry_ids(cx).get(0).copied()
685 } else {
686 None
687 };
688
689 let existing_item_index = self.items.iter().position(|existing_item| {
690 if existing_item.item_id() == item.item_id() {
691 true
692 } else if existing_item.is_singleton(cx) {
693 existing_item
694 .project_entry_ids(cx)
695 .get(0)
696 .map_or(false, |existing_entry_id| {
697 Some(existing_entry_id) == project_entry_id.as_ref()
698 })
699 } else {
700 false
701 }
702 });
703
704 if let Some(existing_item_index) = existing_item_index {
705 // If the item already exists, move it to the desired destination and activate it
706
707 if existing_item_index != insertion_index {
708 let existing_item_is_active = existing_item_index == self.active_item_index;
709
710 // If the caller didn't specify a destination and the added item is already
711 // the active one, don't move it
712 if existing_item_is_active && destination_index.is_none() {
713 insertion_index = existing_item_index;
714 } else {
715 self.items.remove(existing_item_index);
716 if existing_item_index < self.active_item_index {
717 self.active_item_index -= 1;
718 }
719 insertion_index = insertion_index.min(self.items.len());
720
721 self.items.insert(insertion_index, item.clone());
722
723 if existing_item_is_active {
724 self.active_item_index = insertion_index;
725 } else if insertion_index <= self.active_item_index {
726 self.active_item_index += 1;
727 }
728 }
729
730 cx.notify();
731 }
732
733 self.activate_item(insertion_index, activate_pane, focus_item, cx);
734 } else {
735 self.items.insert(insertion_index, item.clone());
736
737 if insertion_index <= self.active_item_index
738 && self.preview_item_idx() != Some(self.active_item_index)
739 {
740 self.active_item_index += 1;
741 }
742
743 self.activate_item(insertion_index, activate_pane, focus_item, cx);
744 cx.notify();
745 }
746
747 cx.emit(Event::AddItem { item });
748 }
749
750 pub fn items_len(&self) -> usize {
751 self.items.len()
752 }
753
754 pub fn items(&self) -> impl DoubleEndedIterator<Item = &Box<dyn ItemHandle>> {
755 self.items.iter()
756 }
757
758 pub fn items_of_type<T: Render>(&self) -> impl '_ + Iterator<Item = View<T>> {
759 self.items
760 .iter()
761 .filter_map(|item| item.to_any().downcast().ok())
762 }
763
764 pub fn active_item(&self) -> Option<Box<dyn ItemHandle>> {
765 self.items.get(self.active_item_index).cloned()
766 }
767
768 pub fn pixel_position_of_cursor(&self, cx: &AppContext) -> Option<Point<Pixels>> {
769 self.items
770 .get(self.active_item_index)?
771 .pixel_position_of_cursor(cx)
772 }
773
774 pub fn item_for_entry(
775 &self,
776 entry_id: ProjectEntryId,
777 cx: &AppContext,
778 ) -> Option<Box<dyn ItemHandle>> {
779 self.items.iter().find_map(|item| {
780 if item.is_singleton(cx) && item.project_entry_ids(cx).as_slice() == [entry_id] {
781 Some(item.boxed_clone())
782 } else {
783 None
784 }
785 })
786 }
787
788 pub fn index_for_item(&self, item: &dyn ItemHandle) -> Option<usize> {
789 self.items
790 .iter()
791 .position(|i| i.item_id() == item.item_id())
792 }
793
794 pub fn item_for_index(&self, ix: usize) -> Option<&dyn ItemHandle> {
795 self.items.get(ix).map(|i| i.as_ref())
796 }
797
798 pub fn toggle_zoom(&mut self, _: &ToggleZoom, cx: &mut ViewContext<Self>) {
799 if self.zoomed {
800 cx.emit(Event::ZoomOut);
801 } else if !self.items.is_empty() {
802 if !self.focus_handle.contains_focused(cx) {
803 cx.focus_self();
804 }
805 cx.emit(Event::ZoomIn);
806 }
807 }
808
809 pub fn activate_item(
810 &mut self,
811 index: usize,
812 activate_pane: bool,
813 focus_item: bool,
814 cx: &mut ViewContext<Self>,
815 ) {
816 use NavigationMode::{GoingBack, GoingForward};
817
818 if index < self.items.len() {
819 let prev_active_item_ix = mem::replace(&mut self.active_item_index, index);
820 if prev_active_item_ix != self.active_item_index
821 || matches!(self.nav_history.mode(), GoingBack | GoingForward)
822 {
823 if let Some(prev_item) = self.items.get(prev_active_item_ix) {
824 prev_item.deactivated(cx);
825 }
826 }
827 cx.emit(Event::ActivateItem {
828 local: activate_pane,
829 });
830
831 if let Some(newly_active_item) = self.items.get(index) {
832 self.activation_history
833 .retain(|&previously_active_item_id| {
834 previously_active_item_id != newly_active_item.item_id()
835 });
836 self.activation_history.push(newly_active_item.item_id());
837 }
838
839 self.update_toolbar(cx);
840 self.update_status_bar(cx);
841
842 if focus_item {
843 self.focus_active_item(cx);
844 }
845
846 self.tab_bar_scroll_handle.scroll_to_item(index);
847 cx.notify();
848 }
849 }
850
851 pub fn activate_prev_item(&mut self, activate_pane: bool, cx: &mut ViewContext<Self>) {
852 let mut index = self.active_item_index;
853 if index > 0 {
854 index -= 1;
855 } else if !self.items.is_empty() {
856 index = self.items.len() - 1;
857 }
858 self.activate_item(index, activate_pane, activate_pane, cx);
859 }
860
861 pub fn activate_next_item(&mut self, activate_pane: bool, cx: &mut ViewContext<Self>) {
862 let mut index = self.active_item_index;
863 if index + 1 < self.items.len() {
864 index += 1;
865 } else {
866 index = 0;
867 }
868 self.activate_item(index, activate_pane, activate_pane, cx);
869 }
870
871 pub fn close_active_item(
872 &mut self,
873 action: &CloseActiveItem,
874 cx: &mut ViewContext<Self>,
875 ) -> Option<Task<Result<()>>> {
876 if self.items.is_empty() {
877 // Close the window when there's no active items to close.
878 cx.dispatch_action(Box::new(CloseWindow));
879 return None;
880 }
881 let active_item_id = self.items[self.active_item_index].item_id();
882 Some(self.close_item_by_id(
883 active_item_id,
884 action.save_intent.unwrap_or(SaveIntent::Close),
885 cx,
886 ))
887 }
888
889 pub fn close_item_by_id(
890 &mut self,
891 item_id_to_close: EntityId,
892 save_intent: SaveIntent,
893 cx: &mut ViewContext<Self>,
894 ) -> Task<Result<()>> {
895 self.close_items(cx, save_intent, move |view_id| view_id == item_id_to_close)
896 }
897
898 pub fn close_inactive_items(
899 &mut self,
900 action: &CloseInactiveItems,
901 cx: &mut ViewContext<Self>,
902 ) -> Option<Task<Result<()>>> {
903 if self.items.is_empty() {
904 return None;
905 }
906
907 let active_item_id = self.items[self.active_item_index].item_id();
908 Some(self.close_items(
909 cx,
910 action.save_intent.unwrap_or(SaveIntent::Close),
911 move |item_id| item_id != active_item_id,
912 ))
913 }
914
915 pub fn close_clean_items(
916 &mut self,
917 _: &CloseCleanItems,
918 cx: &mut ViewContext<Self>,
919 ) -> Option<Task<Result<()>>> {
920 let item_ids: Vec<_> = self
921 .items()
922 .filter(|item| !item.is_dirty(cx))
923 .map(|item| item.item_id())
924 .collect();
925 Some(self.close_items(cx, SaveIntent::Close, move |item_id| {
926 item_ids.contains(&item_id)
927 }))
928 }
929
930 pub fn close_items_to_the_left(
931 &mut self,
932 _: &CloseItemsToTheLeft,
933 cx: &mut ViewContext<Self>,
934 ) -> Option<Task<Result<()>>> {
935 if self.items.is_empty() {
936 return None;
937 }
938 let active_item_id = self.items[self.active_item_index].item_id();
939 Some(self.close_items_to_the_left_by_id(active_item_id, cx))
940 }
941
942 pub fn close_items_to_the_left_by_id(
943 &mut self,
944 item_id: EntityId,
945 cx: &mut ViewContext<Self>,
946 ) -> Task<Result<()>> {
947 let item_ids: Vec<_> = self
948 .items()
949 .take_while(|item| item.item_id() != item_id)
950 .map(|item| item.item_id())
951 .collect();
952 self.close_items(cx, SaveIntent::Close, move |item_id| {
953 item_ids.contains(&item_id)
954 })
955 }
956
957 pub fn close_items_to_the_right(
958 &mut self,
959 _: &CloseItemsToTheRight,
960 cx: &mut ViewContext<Self>,
961 ) -> Option<Task<Result<()>>> {
962 if self.items.is_empty() {
963 return None;
964 }
965 let active_item_id = self.items[self.active_item_index].item_id();
966 Some(self.close_items_to_the_right_by_id(active_item_id, cx))
967 }
968
969 pub fn close_items_to_the_right_by_id(
970 &mut self,
971 item_id: EntityId,
972 cx: &mut ViewContext<Self>,
973 ) -> Task<Result<()>> {
974 let item_ids: Vec<_> = self
975 .items()
976 .rev()
977 .take_while(|item| item.item_id() != item_id)
978 .map(|item| item.item_id())
979 .collect();
980 self.close_items(cx, SaveIntent::Close, move |item_id| {
981 item_ids.contains(&item_id)
982 })
983 }
984
985 pub fn close_all_items(
986 &mut self,
987 action: &CloseAllItems,
988 cx: &mut ViewContext<Self>,
989 ) -> Option<Task<Result<()>>> {
990 if self.items.is_empty() {
991 return None;
992 }
993
994 Some(
995 self.close_items(cx, action.save_intent.unwrap_or(SaveIntent::Close), |_| {
996 true
997 }),
998 )
999 }
1000
1001 pub(super) fn file_names_for_prompt(
1002 items: &mut dyn Iterator<Item = &Box<dyn ItemHandle>>,
1003 all_dirty_items: usize,
1004 cx: &AppContext,
1005 ) -> (String, String) {
1006 /// Quantity of item paths displayed in prompt prior to cutoff..
1007 const FILE_NAMES_CUTOFF_POINT: usize = 10;
1008 let mut file_names: Vec<_> = items
1009 .filter_map(|item| {
1010 item.project_path(cx).and_then(|project_path| {
1011 project_path
1012 .path
1013 .file_name()
1014 .and_then(|name| name.to_str().map(ToOwned::to_owned))
1015 })
1016 })
1017 .take(FILE_NAMES_CUTOFF_POINT)
1018 .collect();
1019 let should_display_followup_text =
1020 all_dirty_items > FILE_NAMES_CUTOFF_POINT || file_names.len() != all_dirty_items;
1021 if should_display_followup_text {
1022 let not_shown_files = all_dirty_items - file_names.len();
1023 if not_shown_files == 1 {
1024 file_names.push(".. 1 file not shown".into());
1025 } else {
1026 file_names.push(format!(".. {} files not shown", not_shown_files));
1027 }
1028 }
1029 (
1030 format!(
1031 "Do you want to save changes to the following {} files?",
1032 all_dirty_items
1033 ),
1034 file_names.join("\n"),
1035 )
1036 }
1037
1038 pub fn close_items(
1039 &mut self,
1040 cx: &mut ViewContext<Pane>,
1041 mut save_intent: SaveIntent,
1042 should_close: impl Fn(EntityId) -> bool,
1043 ) -> Task<Result<()>> {
1044 // Find the items to close.
1045 let mut items_to_close = Vec::new();
1046 let mut dirty_items = Vec::new();
1047 for item in &self.items {
1048 if should_close(item.item_id()) {
1049 items_to_close.push(item.boxed_clone());
1050 if item.is_dirty(cx) {
1051 dirty_items.push(item.boxed_clone());
1052 }
1053 }
1054 }
1055
1056 // If a buffer is open both in a singleton editor and in a multibuffer, make sure
1057 // to focus the singleton buffer when prompting to save that buffer, as opposed
1058 // to focusing the multibuffer, because this gives the user a more clear idea
1059 // of what content they would be saving.
1060 items_to_close.sort_by_key(|item| !item.is_singleton(cx));
1061
1062 let workspace = self.workspace.clone();
1063 cx.spawn(|pane, mut cx| async move {
1064 if save_intent == SaveIntent::Close && dirty_items.len() > 1 {
1065 let answer = pane.update(&mut cx, |_, cx| {
1066 let (prompt, detail) =
1067 Self::file_names_for_prompt(&mut dirty_items.iter(), dirty_items.len(), cx);
1068 cx.prompt(
1069 PromptLevel::Warning,
1070 &prompt,
1071 Some(&detail),
1072 &["Save all", "Discard all", "Cancel"],
1073 )
1074 })?;
1075 match answer.await {
1076 Ok(0) => save_intent = SaveIntent::SaveAll,
1077 Ok(1) => save_intent = SaveIntent::Skip,
1078 _ => {}
1079 }
1080 }
1081 let mut saved_project_items_ids = HashSet::default();
1082 for item in items_to_close.clone() {
1083 // Find the item's current index and its set of project item models. Avoid
1084 // storing these in advance, in case they have changed since this task
1085 // was started.
1086 let (item_ix, mut project_item_ids) = pane.update(&mut cx, |pane, cx| {
1087 (pane.index_for_item(&*item), item.project_item_model_ids(cx))
1088 })?;
1089 let item_ix = if let Some(ix) = item_ix {
1090 ix
1091 } else {
1092 continue;
1093 };
1094
1095 // Check if this view has any project items that are not open anywhere else
1096 // in the workspace, AND that the user has not already been prompted to save.
1097 // If there are any such project entries, prompt the user to save this item.
1098 let project = workspace.update(&mut cx, |workspace, cx| {
1099 for item in workspace.items(cx) {
1100 if !items_to_close
1101 .iter()
1102 .any(|item_to_close| item_to_close.item_id() == item.item_id())
1103 {
1104 let other_project_item_ids = item.project_item_model_ids(cx);
1105 project_item_ids.retain(|id| !other_project_item_ids.contains(id));
1106 }
1107 }
1108 workspace.project().clone()
1109 })?;
1110 let should_save = project_item_ids
1111 .iter()
1112 .any(|id| saved_project_items_ids.insert(*id));
1113
1114 if should_save
1115 && !Self::save_item(
1116 project.clone(),
1117 &pane,
1118 item_ix,
1119 &*item,
1120 save_intent,
1121 &mut cx,
1122 )
1123 .await?
1124 {
1125 break;
1126 }
1127
1128 // Remove the item from the pane.
1129 pane.update(&mut cx, |pane, cx| {
1130 if let Some(item_ix) = pane
1131 .items
1132 .iter()
1133 .position(|i| i.item_id() == item.item_id())
1134 {
1135 pane.remove_item(item_ix, false, true, cx);
1136 }
1137 })
1138 .ok();
1139 }
1140
1141 pane.update(&mut cx, |_, cx| cx.notify()).ok();
1142 Ok(())
1143 })
1144 }
1145
1146 pub fn remove_item(
1147 &mut self,
1148 item_index: usize,
1149 activate_pane: bool,
1150 close_pane_if_empty: bool,
1151 cx: &mut ViewContext<Self>,
1152 ) {
1153 self.activation_history
1154 .retain(|&history_entry| history_entry != self.items[item_index].item_id());
1155
1156 if item_index == self.active_item_index {
1157 let index_to_activate = self
1158 .activation_history
1159 .pop()
1160 .and_then(|last_activated_item| {
1161 self.items.iter().enumerate().find_map(|(index, item)| {
1162 (item.item_id() == last_activated_item).then_some(index)
1163 })
1164 })
1165 // We didn't have a valid activation history entry, so fallback
1166 // to activating the item to the left
1167 .unwrap_or_else(|| item_index.min(self.items.len()).saturating_sub(1));
1168
1169 let should_activate = activate_pane || self.has_focus(cx);
1170 if self.items.len() == 1 && should_activate {
1171 self.focus_handle.focus(cx);
1172 } else {
1173 self.activate_item(index_to_activate, should_activate, should_activate, cx);
1174 }
1175 }
1176
1177 let item = self.items.remove(item_index);
1178
1179 cx.emit(Event::RemoveItem {
1180 item_id: item.item_id(),
1181 });
1182 if self.items.is_empty() {
1183 item.deactivated(cx);
1184 if close_pane_if_empty {
1185 self.update_toolbar(cx);
1186 cx.emit(Event::Remove);
1187 }
1188 }
1189
1190 if item_index < self.active_item_index {
1191 self.active_item_index -= 1;
1192 }
1193
1194 let mode = self.nav_history.mode();
1195 self.nav_history.set_mode(NavigationMode::ClosingItem);
1196 item.deactivated(cx);
1197 self.nav_history.set_mode(mode);
1198
1199 if self.is_active_preview_item(item.item_id()) {
1200 self.set_preview_item_id(None, cx);
1201 }
1202
1203 if let Some(path) = item.project_path(cx) {
1204 let abs_path = self
1205 .nav_history
1206 .0
1207 .lock()
1208 .paths_by_item
1209 .get(&item.item_id())
1210 .and_then(|(_, abs_path)| abs_path.clone());
1211
1212 self.nav_history
1213 .0
1214 .lock()
1215 .paths_by_item
1216 .insert(item.item_id(), (path, abs_path));
1217 } else {
1218 self.nav_history
1219 .0
1220 .lock()
1221 .paths_by_item
1222 .remove(&item.item_id());
1223 }
1224
1225 if self.items.is_empty() && close_pane_if_empty && self.zoomed {
1226 cx.emit(Event::ZoomOut);
1227 }
1228
1229 cx.notify();
1230 }
1231
1232 pub async fn save_item(
1233 project: Model<Project>,
1234 pane: &WeakView<Pane>,
1235 item_ix: usize,
1236 item: &dyn ItemHandle,
1237 save_intent: SaveIntent,
1238 cx: &mut AsyncWindowContext,
1239 ) -> Result<bool> {
1240 const CONFLICT_MESSAGE: &str =
1241 "This file has changed on disk since you started editing it. Do you want to overwrite it?";
1242
1243 if save_intent == SaveIntent::Skip {
1244 return Ok(true);
1245 }
1246
1247 let (mut has_conflict, mut is_dirty, mut can_save, can_save_as) = cx.update(|cx| {
1248 (
1249 item.has_conflict(cx),
1250 item.is_dirty(cx),
1251 item.can_save(cx),
1252 item.is_singleton(cx),
1253 )
1254 })?;
1255
1256 // when saving a single buffer, we ignore whether or not it's dirty.
1257 if save_intent == SaveIntent::Save || save_intent == SaveIntent::SaveWithoutFormat {
1258 is_dirty = true;
1259 }
1260
1261 if save_intent == SaveIntent::SaveAs {
1262 is_dirty = true;
1263 has_conflict = false;
1264 can_save = false;
1265 }
1266
1267 if save_intent == SaveIntent::Overwrite {
1268 has_conflict = false;
1269 }
1270
1271 let should_format = save_intent != SaveIntent::SaveWithoutFormat;
1272
1273 if has_conflict && can_save {
1274 let answer = pane.update(cx, |pane, cx| {
1275 pane.activate_item(item_ix, true, true, cx);
1276 cx.prompt(
1277 PromptLevel::Warning,
1278 CONFLICT_MESSAGE,
1279 None,
1280 &["Overwrite", "Discard", "Cancel"],
1281 )
1282 })?;
1283 match answer.await {
1284 Ok(0) => {
1285 pane.update(cx, |_, cx| item.save(should_format, project, cx))?
1286 .await?
1287 }
1288 Ok(1) => pane.update(cx, |_, cx| item.reload(project, cx))?.await?,
1289 _ => return Ok(false),
1290 }
1291 } else if is_dirty && (can_save || can_save_as) {
1292 if save_intent == SaveIntent::Close {
1293 let will_autosave = cx.update(|cx| {
1294 matches!(
1295 WorkspaceSettings::get_global(cx).autosave,
1296 AutosaveSetting::OnFocusChange | AutosaveSetting::OnWindowChange
1297 ) && Self::can_autosave_item(item, cx)
1298 })?;
1299 if !will_autosave {
1300 let answer = pane.update(cx, |pane, cx| {
1301 pane.activate_item(item_ix, true, true, cx);
1302 let prompt = dirty_message_for(item.project_path(cx));
1303 cx.prompt(
1304 PromptLevel::Warning,
1305 &prompt,
1306 None,
1307 &["Save", "Don't Save", "Cancel"],
1308 )
1309 })?;
1310 match answer.await {
1311 Ok(0) => {}
1312 Ok(1) => return Ok(true), // Don't save this file
1313 _ => return Ok(false), // Cancel
1314 }
1315 }
1316 }
1317
1318 if can_save {
1319 pane.update(cx, |_, cx| item.save(should_format, project, cx))?
1320 .await?;
1321 } else if can_save_as {
1322 let start_abs_path = project
1323 .update(cx, |project, cx| {
1324 let worktree = project.visible_worktrees(cx).next()?;
1325 Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
1326 })?
1327 .unwrap_or_else(|| Path::new("").into());
1328
1329 let abs_path = cx.update(|cx| cx.prompt_for_new_path(&start_abs_path))?;
1330 if let Some(abs_path) = abs_path.await.ok().flatten() {
1331 pane.update(cx, |_, cx| item.save_as(project, abs_path, cx))?
1332 .await?;
1333 } else {
1334 return Ok(false);
1335 }
1336 }
1337 }
1338 Ok(true)
1339 }
1340
1341 fn can_autosave_item(item: &dyn ItemHandle, cx: &AppContext) -> bool {
1342 let is_deleted = item.project_entry_ids(cx).is_empty();
1343 item.is_dirty(cx) && !item.has_conflict(cx) && item.can_save(cx) && !is_deleted
1344 }
1345
1346 pub fn autosave_item(
1347 item: &dyn ItemHandle,
1348 project: Model<Project>,
1349 cx: &mut WindowContext,
1350 ) -> Task<Result<()>> {
1351 if Self::can_autosave_item(item, cx) {
1352 item.save(true, project, cx)
1353 } else {
1354 Task::ready(Ok(()))
1355 }
1356 }
1357
1358 pub fn focus(&mut self, cx: &mut ViewContext<Pane>) {
1359 cx.focus(&self.focus_handle);
1360 }
1361
1362 pub fn focus_active_item(&mut self, cx: &mut ViewContext<Self>) {
1363 if let Some(active_item) = self.active_item() {
1364 let focus_handle = active_item.focus_handle(cx);
1365 cx.focus(&focus_handle);
1366 }
1367 }
1368
1369 pub fn split(&mut self, direction: SplitDirection, cx: &mut ViewContext<Self>) {
1370 cx.emit(Event::Split(direction));
1371 }
1372
1373 pub fn toolbar(&self) -> &View<Toolbar> {
1374 &self.toolbar
1375 }
1376
1377 pub fn handle_deleted_project_item(
1378 &mut self,
1379 entry_id: ProjectEntryId,
1380 cx: &mut ViewContext<Pane>,
1381 ) -> Option<()> {
1382 let (item_index_to_delete, item_id) = self.items().enumerate().find_map(|(i, item)| {
1383 if item.is_singleton(cx) && item.project_entry_ids(cx).as_slice() == [entry_id] {
1384 Some((i, item.item_id()))
1385 } else {
1386 None
1387 }
1388 })?;
1389
1390 self.remove_item(item_index_to_delete, false, true, cx);
1391 self.nav_history.remove_item(item_id);
1392
1393 Some(())
1394 }
1395
1396 fn update_toolbar(&mut self, cx: &mut ViewContext<Self>) {
1397 let active_item = self
1398 .items
1399 .get(self.active_item_index)
1400 .map(|item| item.as_ref());
1401 self.toolbar.update(cx, |toolbar, cx| {
1402 toolbar.set_active_item(active_item, cx);
1403 });
1404 }
1405
1406 fn update_status_bar(&mut self, cx: &mut ViewContext<Self>) {
1407 let workspace = self.workspace.clone();
1408 let pane = cx.view().clone();
1409
1410 cx.window_context().defer(move |cx| {
1411 let Ok(status_bar) = workspace.update(cx, |workspace, _| workspace.status_bar.clone())
1412 else {
1413 return;
1414 };
1415
1416 status_bar.update(cx, move |status_bar, cx| {
1417 status_bar.set_active_pane(&pane, cx);
1418 });
1419 });
1420 }
1421
1422 fn render_tab(
1423 &self,
1424 ix: usize,
1425 item: &Box<dyn ItemHandle>,
1426 detail: usize,
1427 cx: &mut ViewContext<'_, Pane>,
1428 ) -> impl IntoElement {
1429 let is_active = ix == self.active_item_index;
1430 let is_preview = self
1431 .preview_item_id
1432 .map(|id| id == item.item_id())
1433 .unwrap_or(false);
1434
1435 let label = item.tab_content(
1436 TabContentParams {
1437 detail: Some(detail),
1438 selected: is_active,
1439 preview: is_preview,
1440 },
1441 cx,
1442 );
1443 let close_side = &ItemSettings::get_global(cx).close_position;
1444 let indicator = render_item_indicator(item.boxed_clone(), cx);
1445 let item_id = item.item_id();
1446 let is_first_item = ix == 0;
1447 let is_last_item = ix == self.items.len() - 1;
1448 let position_relative_to_active_item = ix.cmp(&self.active_item_index);
1449
1450 let tab = Tab::new(ix)
1451 .position(if is_first_item {
1452 TabPosition::First
1453 } else if is_last_item {
1454 TabPosition::Last
1455 } else {
1456 TabPosition::Middle(position_relative_to_active_item)
1457 })
1458 .close_side(match close_side {
1459 ClosePosition::Left => ui::TabCloseSide::Start,
1460 ClosePosition::Right => ui::TabCloseSide::End,
1461 })
1462 .selected(is_active)
1463 .on_click(
1464 cx.listener(move |pane: &mut Self, _, cx| pane.activate_item(ix, true, true, cx)),
1465 )
1466 // TODO: This should be a click listener with the middle mouse button instead of a mouse down listener.
1467 .on_mouse_down(
1468 MouseButton::Middle,
1469 cx.listener(move |pane, _event, cx| {
1470 pane.close_item_by_id(item_id, SaveIntent::Close, cx)
1471 .detach_and_log_err(cx);
1472 }),
1473 )
1474 .on_mouse_down(
1475 MouseButton::Left,
1476 cx.listener(move |pane, event: &MouseDownEvent, cx| {
1477 if let Some(id) = pane.preview_item_id {
1478 if id == item_id && event.click_count > 1 {
1479 pane.set_preview_item_id(None, cx);
1480 }
1481 }
1482 }),
1483 )
1484 .on_drag(
1485 DraggedTab {
1486 item: item.boxed_clone(),
1487 pane: cx.view().clone(),
1488 detail,
1489 is_active,
1490 ix,
1491 },
1492 |tab, cx| cx.new_view(|_| tab.clone()),
1493 )
1494 .drag_over::<DraggedTab>(|tab, _, cx| {
1495 tab.bg(cx.theme().colors().drop_target_background)
1496 })
1497 .drag_over::<ProjectEntryId>(|tab, _, cx| {
1498 tab.bg(cx.theme().colors().drop_target_background)
1499 })
1500 .when_some(self.can_drop_predicate.clone(), |this, p| {
1501 this.can_drop(move |a, cx| p(a, cx))
1502 })
1503 .on_drop(cx.listener(move |this, dragged_tab: &DraggedTab, cx| {
1504 this.drag_split_direction = None;
1505 this.handle_tab_drop(dragged_tab, ix, cx)
1506 }))
1507 .on_drop(cx.listener(move |this, entry_id: &ProjectEntryId, cx| {
1508 this.drag_split_direction = None;
1509 this.handle_project_entry_drop(entry_id, cx)
1510 }))
1511 .on_drop(cx.listener(move |this, paths, cx| {
1512 this.drag_split_direction = None;
1513 this.handle_external_paths_drop(paths, cx)
1514 }))
1515 .when_some(item.tab_tooltip_text(cx), |tab, text| {
1516 tab.tooltip(move |cx| Tooltip::text(text.clone(), cx))
1517 })
1518 .start_slot::<Indicator>(indicator)
1519 .end_slot(
1520 IconButton::new("close tab", IconName::Close)
1521 .shape(IconButtonShape::Square)
1522 .icon_color(Color::Muted)
1523 .size(ButtonSize::None)
1524 .icon_size(IconSize::XSmall)
1525 .on_click(cx.listener(move |pane, _, cx| {
1526 pane.close_item_by_id(item_id, SaveIntent::Close, cx)
1527 .detach_and_log_err(cx);
1528 })),
1529 )
1530 .child(label);
1531
1532 let single_entry_to_resolve = {
1533 let item_entries = self.items[ix].project_entry_ids(cx);
1534 if item_entries.len() == 1 {
1535 Some(item_entries[0])
1536 } else {
1537 None
1538 }
1539 };
1540
1541 let pane = cx.view().downgrade();
1542 right_click_menu(ix).trigger(tab).menu(move |cx| {
1543 let pane = pane.clone();
1544 ContextMenu::build(cx, move |mut menu, cx| {
1545 if let Some(pane) = pane.upgrade() {
1546 menu = menu
1547 .entry(
1548 "Close",
1549 Some(Box::new(CloseActiveItem { save_intent: None })),
1550 cx.handler_for(&pane, move |pane, cx| {
1551 pane.close_item_by_id(item_id, SaveIntent::Close, cx)
1552 .detach_and_log_err(cx);
1553 }),
1554 )
1555 .entry(
1556 "Close Others",
1557 Some(Box::new(CloseInactiveItems { save_intent: None })),
1558 cx.handler_for(&pane, move |pane, cx| {
1559 pane.close_items(cx, SaveIntent::Close, |id| id != item_id)
1560 .detach_and_log_err(cx);
1561 }),
1562 )
1563 .separator()
1564 .entry(
1565 "Close Left",
1566 Some(Box::new(CloseItemsToTheLeft)),
1567 cx.handler_for(&pane, move |pane, cx| {
1568 pane.close_items_to_the_left_by_id(item_id, cx)
1569 .detach_and_log_err(cx);
1570 }),
1571 )
1572 .entry(
1573 "Close Right",
1574 Some(Box::new(CloseItemsToTheRight)),
1575 cx.handler_for(&pane, move |pane, cx| {
1576 pane.close_items_to_the_right_by_id(item_id, cx)
1577 .detach_and_log_err(cx);
1578 }),
1579 )
1580 .separator()
1581 .entry(
1582 "Close Clean",
1583 Some(Box::new(CloseCleanItems)),
1584 cx.handler_for(&pane, move |pane, cx| {
1585 if let Some(task) = pane.close_clean_items(&CloseCleanItems, cx) {
1586 task.detach_and_log_err(cx)
1587 }
1588 }),
1589 )
1590 .entry(
1591 "Close All",
1592 Some(Box::new(CloseAllItems { save_intent: None })),
1593 cx.handler_for(&pane, |pane, cx| {
1594 if let Some(task) =
1595 pane.close_all_items(&CloseAllItems { save_intent: None }, cx)
1596 {
1597 task.detach_and_log_err(cx)
1598 }
1599 }),
1600 );
1601
1602 if let Some(entry) = single_entry_to_resolve {
1603 let parent_abs_path = pane
1604 .update(cx, |pane, cx| {
1605 pane.workspace.update(cx, |workspace, cx| {
1606 let project = workspace.project().read(cx);
1607 project.worktree_for_entry(entry, cx).and_then(|worktree| {
1608 let worktree = worktree.read(cx);
1609 let entry = worktree.entry_for_id(entry)?;
1610 let abs_path = worktree.absolutize(&entry.path).ok()?;
1611 let parent = if entry.is_symlink {
1612 abs_path.canonicalize().ok()?
1613 } else {
1614 abs_path
1615 }
1616 .parent()?
1617 .to_path_buf();
1618 Some(parent)
1619 })
1620 })
1621 })
1622 .ok()
1623 .flatten();
1624
1625 let entry_id = entry.to_proto();
1626 menu = menu
1627 .separator()
1628 .entry(
1629 "Reveal In Project Panel",
1630 Some(Box::new(RevealInProjectPanel {
1631 entry_id: Some(entry_id),
1632 })),
1633 cx.handler_for(&pane, move |pane, cx| {
1634 pane.project.update(cx, |_, cx| {
1635 cx.emit(project::Event::RevealInProjectPanel(
1636 ProjectEntryId::from_proto(entry_id),
1637 ))
1638 });
1639 }),
1640 )
1641 .when_some(parent_abs_path, |menu, abs_path| {
1642 menu.entry(
1643 "Open in Terminal",
1644 Some(Box::new(OpenInTerminal)),
1645 cx.handler_for(&pane, move |_, cx| {
1646 cx.dispatch_action(
1647 OpenTerminal {
1648 working_directory: abs_path.clone(),
1649 }
1650 .boxed_clone(),
1651 );
1652 }),
1653 )
1654 });
1655 }
1656 }
1657
1658 menu
1659 })
1660 })
1661 }
1662
1663 fn render_tab_bar(&mut self, cx: &mut ViewContext<'_, Pane>) -> impl IntoElement {
1664 TabBar::new("tab_bar")
1665 .track_scroll(self.tab_bar_scroll_handle.clone())
1666 .when(self.display_nav_history_buttons, |tab_bar| {
1667 tab_bar.start_child(
1668 h_flex()
1669 .gap_2()
1670 .child(
1671 IconButton::new("navigate_backward", IconName::ArrowLeft)
1672 .icon_size(IconSize::Small)
1673 .on_click({
1674 let view = cx.view().clone();
1675 move |_, cx| view.update(cx, Self::navigate_backward)
1676 })
1677 .disabled(!self.can_navigate_backward())
1678 .tooltip(|cx| Tooltip::for_action("Go Back", &GoBack, cx)),
1679 )
1680 .child(
1681 IconButton::new("navigate_forward", IconName::ArrowRight)
1682 .icon_size(IconSize::Small)
1683 .on_click({
1684 let view = cx.view().clone();
1685 move |_, cx| view.update(cx, Self::navigate_forward)
1686 })
1687 .disabled(!self.can_navigate_forward())
1688 .tooltip(|cx| Tooltip::for_action("Go Forward", &GoForward, cx)),
1689 ),
1690 )
1691 })
1692 .when(self.has_focus(cx), |tab_bar| {
1693 tab_bar.end_child({
1694 let render_tab_buttons = self.render_tab_bar_buttons.clone();
1695 render_tab_buttons(self, cx)
1696 })
1697 })
1698 .children(
1699 self.items
1700 .iter()
1701 .enumerate()
1702 .zip(tab_details(&self.items, cx))
1703 .map(|((ix, item), detail)| self.render_tab(ix, item, detail, cx)),
1704 )
1705 .child(
1706 div()
1707 .id("tab_bar_drop_target")
1708 .min_w_6()
1709 // HACK: This empty child is currently necessary to force the drop target to appear
1710 // despite us setting a min width above.
1711 .child("")
1712 .h_full()
1713 .flex_grow()
1714 .drag_over::<DraggedTab>(|bar, _, cx| {
1715 bar.bg(cx.theme().colors().drop_target_background)
1716 })
1717 .drag_over::<ProjectEntryId>(|bar, _, cx| {
1718 bar.bg(cx.theme().colors().drop_target_background)
1719 })
1720 .on_drop(cx.listener(move |this, dragged_tab: &DraggedTab, cx| {
1721 this.drag_split_direction = None;
1722 this.handle_tab_drop(dragged_tab, this.items.len(), cx)
1723 }))
1724 .on_drop(cx.listener(move |this, entry_id: &ProjectEntryId, cx| {
1725 this.drag_split_direction = None;
1726 this.handle_project_entry_drop(entry_id, cx)
1727 }))
1728 .on_drop(cx.listener(move |this, paths, cx| {
1729 this.drag_split_direction = None;
1730 this.handle_external_paths_drop(paths, cx)
1731 }))
1732 .on_click(cx.listener(move |this, event: &ClickEvent, cx| {
1733 if event.up.click_count == 2 {
1734 cx.dispatch_action(this.double_click_dispatch_action.boxed_clone())
1735 }
1736 })),
1737 )
1738 }
1739
1740 fn render_menu_overlay(menu: &View<ContextMenu>) -> Div {
1741 div().absolute().bottom_0().right_0().size_0().child(
1742 deferred(
1743 anchored()
1744 .anchor(AnchorCorner::TopRight)
1745 .child(menu.clone()),
1746 )
1747 .with_priority(1),
1748 )
1749 }
1750
1751 pub fn set_zoomed(&mut self, zoomed: bool, cx: &mut ViewContext<Self>) {
1752 self.zoomed = zoomed;
1753 cx.notify();
1754 }
1755
1756 pub fn is_zoomed(&self) -> bool {
1757 self.zoomed
1758 }
1759
1760 fn handle_drag_move<T>(&mut self, event: &DragMoveEvent<T>, cx: &mut ViewContext<Self>) {
1761 if !self.can_split {
1762 return;
1763 }
1764
1765 let rect = event.bounds.size;
1766
1767 let size = event.bounds.size.width.min(event.bounds.size.height)
1768 * WorkspaceSettings::get_global(cx).drop_target_size;
1769
1770 let relative_cursor = Point::new(
1771 event.event.position.x - event.bounds.left(),
1772 event.event.position.y - event.bounds.top(),
1773 );
1774
1775 let direction = if relative_cursor.x < size
1776 || relative_cursor.x > rect.width - size
1777 || relative_cursor.y < size
1778 || relative_cursor.y > rect.height - size
1779 {
1780 [
1781 SplitDirection::Up,
1782 SplitDirection::Right,
1783 SplitDirection::Down,
1784 SplitDirection::Left,
1785 ]
1786 .iter()
1787 .min_by_key(|side| match side {
1788 SplitDirection::Up => relative_cursor.y,
1789 SplitDirection::Right => rect.width - relative_cursor.x,
1790 SplitDirection::Down => rect.height - relative_cursor.y,
1791 SplitDirection::Left => relative_cursor.x,
1792 })
1793 .cloned()
1794 } else {
1795 None
1796 };
1797
1798 if direction != self.drag_split_direction {
1799 self.drag_split_direction = direction;
1800 }
1801 }
1802
1803 fn handle_tab_drop(
1804 &mut self,
1805 dragged_tab: &DraggedTab,
1806 ix: usize,
1807 cx: &mut ViewContext<'_, Self>,
1808 ) {
1809 if let Some(custom_drop_handle) = self.custom_drop_handle.clone() {
1810 if let ControlFlow::Break(()) = custom_drop_handle(self, dragged_tab, cx) {
1811 return;
1812 }
1813 }
1814 let mut to_pane = cx.view().clone();
1815 let split_direction = self.drag_split_direction;
1816 let item_id = dragged_tab.item.item_id();
1817 if let Some(preview_item_id) = self.preview_item_id {
1818 if item_id == preview_item_id {
1819 self.set_preview_item_id(None, cx);
1820 }
1821 }
1822
1823 let from_pane = dragged_tab.pane.clone();
1824 self.workspace
1825 .update(cx, |_, cx| {
1826 cx.defer(move |workspace, cx| {
1827 if let Some(split_direction) = split_direction {
1828 to_pane = workspace.split_pane(to_pane, split_direction, cx);
1829 }
1830 workspace.move_item(from_pane, to_pane, item_id, ix, cx);
1831 });
1832 })
1833 .log_err();
1834 }
1835
1836 fn handle_project_entry_drop(
1837 &mut self,
1838 project_entry_id: &ProjectEntryId,
1839 cx: &mut ViewContext<'_, Self>,
1840 ) {
1841 if let Some(custom_drop_handle) = self.custom_drop_handle.clone() {
1842 if let ControlFlow::Break(()) = custom_drop_handle(self, project_entry_id, cx) {
1843 return;
1844 }
1845 }
1846 let mut to_pane = cx.view().clone();
1847 let split_direction = self.drag_split_direction;
1848 let project_entry_id = *project_entry_id;
1849 self.workspace
1850 .update(cx, |_, cx| {
1851 cx.defer(move |workspace, cx| {
1852 if let Some(path) = workspace
1853 .project()
1854 .read(cx)
1855 .path_for_entry(project_entry_id, cx)
1856 {
1857 if let Some(split_direction) = split_direction {
1858 to_pane = workspace.split_pane(to_pane, split_direction, cx);
1859 }
1860 workspace
1861 .open_path(path, Some(to_pane.downgrade()), true, cx)
1862 .detach_and_log_err(cx);
1863 }
1864 });
1865 })
1866 .log_err();
1867 }
1868
1869 fn handle_external_paths_drop(
1870 &mut self,
1871 paths: &ExternalPaths,
1872 cx: &mut ViewContext<'_, Self>,
1873 ) {
1874 if let Some(custom_drop_handle) = self.custom_drop_handle.clone() {
1875 if let ControlFlow::Break(()) = custom_drop_handle(self, paths, cx) {
1876 return;
1877 }
1878 }
1879 let mut to_pane = cx.view().clone();
1880 let mut split_direction = self.drag_split_direction;
1881 let paths = paths.paths().to_vec();
1882 self.workspace
1883 .update(cx, |workspace, cx| {
1884 let fs = Arc::clone(workspace.project().read(cx).fs());
1885 cx.spawn(|workspace, mut cx| async move {
1886 let mut is_file_checks = FuturesUnordered::new();
1887 for path in &paths {
1888 is_file_checks.push(fs.is_file(path))
1889 }
1890 let mut has_files_to_open = false;
1891 while let Some(is_file) = is_file_checks.next().await {
1892 if is_file {
1893 has_files_to_open = true;
1894 break;
1895 }
1896 }
1897 drop(is_file_checks);
1898 if !has_files_to_open {
1899 split_direction = None;
1900 }
1901
1902 if let Some(open_task) = workspace
1903 .update(&mut cx, |workspace, cx| {
1904 if let Some(split_direction) = split_direction {
1905 to_pane = workspace.split_pane(to_pane, split_direction, cx);
1906 }
1907 workspace.open_paths(
1908 paths,
1909 OpenVisible::OnlyDirectories,
1910 Some(to_pane.downgrade()),
1911 cx,
1912 )
1913 })
1914 .ok()
1915 {
1916 let _opened_items: Vec<_> = open_task.await;
1917 }
1918 })
1919 .detach();
1920 })
1921 .log_err();
1922 }
1923
1924 pub fn display_nav_history_buttons(&mut self, display: bool) {
1925 self.display_nav_history_buttons = display;
1926 }
1927}
1928
1929impl FocusableView for Pane {
1930 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
1931 self.focus_handle.clone()
1932 }
1933}
1934
1935impl Render for Pane {
1936 fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
1937 let mut key_context = KeyContext::default();
1938 key_context.add("Pane");
1939 if self.active_item().is_none() {
1940 key_context.add("EmptyPane");
1941 }
1942
1943 v_flex()
1944 .key_context(key_context)
1945 .track_focus(&self.focus_handle)
1946 .size_full()
1947 .flex_none()
1948 .overflow_hidden()
1949 .on_action(cx.listener(|pane, _: &SplitLeft, cx| pane.split(SplitDirection::Left, cx)))
1950 .on_action(cx.listener(|pane, _: &SplitUp, cx| pane.split(SplitDirection::Up, cx)))
1951 .on_action(
1952 cx.listener(|pane, _: &SplitRight, cx| pane.split(SplitDirection::Right, cx)),
1953 )
1954 .on_action(cx.listener(|pane, _: &SplitDown, cx| pane.split(SplitDirection::Down, cx)))
1955 .on_action(cx.listener(|pane, _: &GoBack, cx| pane.navigate_backward(cx)))
1956 .on_action(cx.listener(|pane, _: &GoForward, cx| pane.navigate_forward(cx)))
1957 .on_action(cx.listener(Pane::toggle_zoom))
1958 .on_action(cx.listener(|pane: &mut Pane, action: &ActivateItem, cx| {
1959 pane.activate_item(action.0, true, true, cx);
1960 }))
1961 .on_action(cx.listener(|pane: &mut Pane, _: &ActivateLastItem, cx| {
1962 pane.activate_item(pane.items.len() - 1, true, true, cx);
1963 }))
1964 .on_action(cx.listener(|pane: &mut Pane, _: &ActivatePrevItem, cx| {
1965 pane.activate_prev_item(true, cx);
1966 }))
1967 .on_action(cx.listener(|pane: &mut Pane, _: &ActivateNextItem, cx| {
1968 pane.activate_next_item(true, cx);
1969 }))
1970 .when(PreviewTabsSettings::get_global(cx).enabled, |this| {
1971 this.on_action(cx.listener(|pane: &mut Pane, _: &TogglePreviewTab, cx| {
1972 if let Some(active_item_id) = pane.active_item().map(|i| i.item_id()) {
1973 if pane.is_active_preview_item(active_item_id) {
1974 pane.set_preview_item_id(None, cx);
1975 } else {
1976 pane.set_preview_item_id(Some(active_item_id), cx);
1977 }
1978 }
1979 }))
1980 })
1981 .on_action(
1982 cx.listener(|pane: &mut Self, action: &CloseActiveItem, cx| {
1983 if let Some(task) = pane.close_active_item(action, cx) {
1984 task.detach_and_log_err(cx)
1985 }
1986 }),
1987 )
1988 .on_action(
1989 cx.listener(|pane: &mut Self, action: &CloseInactiveItems, cx| {
1990 if let Some(task) = pane.close_inactive_items(action, cx) {
1991 task.detach_and_log_err(cx)
1992 }
1993 }),
1994 )
1995 .on_action(
1996 cx.listener(|pane: &mut Self, action: &CloseCleanItems, cx| {
1997 if let Some(task) = pane.close_clean_items(action, cx) {
1998 task.detach_and_log_err(cx)
1999 }
2000 }),
2001 )
2002 .on_action(
2003 cx.listener(|pane: &mut Self, action: &CloseItemsToTheLeft, cx| {
2004 if let Some(task) = pane.close_items_to_the_left(action, cx) {
2005 task.detach_and_log_err(cx)
2006 }
2007 }),
2008 )
2009 .on_action(
2010 cx.listener(|pane: &mut Self, action: &CloseItemsToTheRight, cx| {
2011 if let Some(task) = pane.close_items_to_the_right(action, cx) {
2012 task.detach_and_log_err(cx)
2013 }
2014 }),
2015 )
2016 .on_action(cx.listener(|pane: &mut Self, action: &CloseAllItems, cx| {
2017 if let Some(task) = pane.close_all_items(action, cx) {
2018 task.detach_and_log_err(cx)
2019 }
2020 }))
2021 .on_action(
2022 cx.listener(|pane: &mut Self, action: &CloseActiveItem, cx| {
2023 if let Some(task) = pane.close_active_item(action, cx) {
2024 task.detach_and_log_err(cx)
2025 }
2026 }),
2027 )
2028 .on_action(
2029 cx.listener(|pane: &mut Self, action: &RevealInProjectPanel, cx| {
2030 let entry_id = action
2031 .entry_id
2032 .map(ProjectEntryId::from_proto)
2033 .or_else(|| pane.active_item()?.project_entry_ids(cx).first().copied());
2034 if let Some(entry_id) = entry_id {
2035 pane.project.update(cx, |_, cx| {
2036 cx.emit(project::Event::RevealInProjectPanel(entry_id))
2037 });
2038 }
2039 }),
2040 )
2041 .when(self.active_item().is_some(), |pane| {
2042 pane.child(self.render_tab_bar(cx))
2043 })
2044 .child({
2045 let has_worktrees = self.project.read(cx).worktrees().next().is_some();
2046 // main content
2047 div()
2048 .flex_1()
2049 .relative()
2050 .group("")
2051 .on_drag_move::<DraggedTab>(cx.listener(Self::handle_drag_move))
2052 .on_drag_move::<ProjectEntryId>(cx.listener(Self::handle_drag_move))
2053 .on_drag_move::<ExternalPaths>(cx.listener(Self::handle_drag_move))
2054 .map(|div| {
2055 if let Some(item) = self.active_item() {
2056 div.v_flex()
2057 .child(self.toolbar.clone())
2058 .child(item.to_any())
2059 } else {
2060 let placeholder = div.h_flex().size_full().justify_center();
2061 if has_worktrees {
2062 placeholder
2063 } else {
2064 placeholder.child(
2065 Label::new("Open a file or project to get started.")
2066 .color(Color::Muted),
2067 )
2068 }
2069 }
2070 })
2071 .child(
2072 // drag target
2073 div()
2074 .invisible()
2075 .absolute()
2076 .bg(cx.theme().colors().drop_target_background)
2077 .group_drag_over::<DraggedTab>("", |style| style.visible())
2078 .group_drag_over::<ProjectEntryId>("", |style| style.visible())
2079 .group_drag_over::<ExternalPaths>("", |style| style.visible())
2080 .when_some(self.can_drop_predicate.clone(), |this, p| {
2081 this.can_drop(move |a, cx| p(a, cx))
2082 })
2083 .on_drop(cx.listener(move |this, dragged_tab, cx| {
2084 this.handle_tab_drop(dragged_tab, this.active_item_index(), cx)
2085 }))
2086 .on_drop(cx.listener(move |this, entry_id, cx| {
2087 this.handle_project_entry_drop(entry_id, cx)
2088 }))
2089 .on_drop(cx.listener(move |this, paths, cx| {
2090 this.handle_external_paths_drop(paths, cx)
2091 }))
2092 .map(|div| {
2093 let size = DefiniteLength::Fraction(0.5);
2094 match self.drag_split_direction {
2095 None => div.top_0().right_0().bottom_0().left_0(),
2096 Some(SplitDirection::Up) => {
2097 div.top_0().left_0().right_0().h(size)
2098 }
2099 Some(SplitDirection::Down) => {
2100 div.left_0().bottom_0().right_0().h(size)
2101 }
2102 Some(SplitDirection::Left) => {
2103 div.top_0().left_0().bottom_0().w(size)
2104 }
2105 Some(SplitDirection::Right) => {
2106 div.top_0().bottom_0().right_0().w(size)
2107 }
2108 }
2109 }),
2110 )
2111 })
2112 .on_mouse_down(
2113 MouseButton::Navigate(NavigationDirection::Back),
2114 cx.listener(|pane, _, cx| {
2115 if let Some(workspace) = pane.workspace.upgrade() {
2116 let pane = cx.view().downgrade();
2117 cx.window_context().defer(move |cx| {
2118 workspace.update(cx, |workspace, cx| {
2119 workspace.go_back(pane, cx).detach_and_log_err(cx)
2120 })
2121 })
2122 }
2123 }),
2124 )
2125 .on_mouse_down(
2126 MouseButton::Navigate(NavigationDirection::Forward),
2127 cx.listener(|pane, _, cx| {
2128 if let Some(workspace) = pane.workspace.upgrade() {
2129 let pane = cx.view().downgrade();
2130 cx.window_context().defer(move |cx| {
2131 workspace.update(cx, |workspace, cx| {
2132 workspace.go_forward(pane, cx).detach_and_log_err(cx)
2133 })
2134 })
2135 }
2136 }),
2137 )
2138 }
2139}
2140
2141impl ItemNavHistory {
2142 pub fn push<D: 'static + Send + Any>(&mut self, data: Option<D>, cx: &mut WindowContext) {
2143 self.history
2144 .push(data, self.item.clone(), self.is_preview, cx);
2145 }
2146
2147 pub fn pop_backward(&mut self, cx: &mut WindowContext) -> Option<NavigationEntry> {
2148 self.history.pop(NavigationMode::GoingBack, cx)
2149 }
2150
2151 pub fn pop_forward(&mut self, cx: &mut WindowContext) -> Option<NavigationEntry> {
2152 self.history.pop(NavigationMode::GoingForward, cx)
2153 }
2154}
2155
2156impl NavHistory {
2157 pub fn for_each_entry(
2158 &self,
2159 cx: &AppContext,
2160 mut f: impl FnMut(&NavigationEntry, (ProjectPath, Option<PathBuf>)),
2161 ) {
2162 let borrowed_history = self.0.lock();
2163 borrowed_history
2164 .forward_stack
2165 .iter()
2166 .chain(borrowed_history.backward_stack.iter())
2167 .chain(borrowed_history.closed_stack.iter())
2168 .for_each(|entry| {
2169 if let Some(project_and_abs_path) =
2170 borrowed_history.paths_by_item.get(&entry.item.id())
2171 {
2172 f(entry, project_and_abs_path.clone());
2173 } else if let Some(item) = entry.item.upgrade() {
2174 if let Some(path) = item.project_path(cx) {
2175 f(entry, (path, None));
2176 }
2177 }
2178 })
2179 }
2180
2181 pub fn set_mode(&mut self, mode: NavigationMode) {
2182 self.0.lock().mode = mode;
2183 }
2184
2185 pub fn mode(&self) -> NavigationMode {
2186 self.0.lock().mode
2187 }
2188
2189 pub fn disable(&mut self) {
2190 self.0.lock().mode = NavigationMode::Disabled;
2191 }
2192
2193 pub fn enable(&mut self) {
2194 self.0.lock().mode = NavigationMode::Normal;
2195 }
2196
2197 pub fn pop(&mut self, mode: NavigationMode, cx: &mut WindowContext) -> Option<NavigationEntry> {
2198 let mut state = self.0.lock();
2199 let entry = match mode {
2200 NavigationMode::Normal | NavigationMode::Disabled | NavigationMode::ClosingItem => {
2201 return None
2202 }
2203 NavigationMode::GoingBack => &mut state.backward_stack,
2204 NavigationMode::GoingForward => &mut state.forward_stack,
2205 NavigationMode::ReopeningClosedItem => &mut state.closed_stack,
2206 }
2207 .pop_back();
2208 if entry.is_some() {
2209 state.did_update(cx);
2210 }
2211 entry
2212 }
2213
2214 pub fn push<D: 'static + Send + Any>(
2215 &mut self,
2216 data: Option<D>,
2217 item: Arc<dyn WeakItemHandle>,
2218 is_preview: bool,
2219 cx: &mut WindowContext,
2220 ) {
2221 let state = &mut *self.0.lock();
2222 match state.mode {
2223 NavigationMode::Disabled => {}
2224 NavigationMode::Normal | NavigationMode::ReopeningClosedItem => {
2225 if state.backward_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2226 state.backward_stack.pop_front();
2227 }
2228 state.backward_stack.push_back(NavigationEntry {
2229 item,
2230 data: data.map(|data| Box::new(data) as Box<dyn Any + Send>),
2231 timestamp: state.next_timestamp.fetch_add(1, Ordering::SeqCst),
2232 is_preview,
2233 });
2234 state.forward_stack.clear();
2235 }
2236 NavigationMode::GoingBack => {
2237 if state.forward_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2238 state.forward_stack.pop_front();
2239 }
2240 state.forward_stack.push_back(NavigationEntry {
2241 item,
2242 data: data.map(|data| Box::new(data) as Box<dyn Any + Send>),
2243 timestamp: state.next_timestamp.fetch_add(1, Ordering::SeqCst),
2244 is_preview,
2245 });
2246 }
2247 NavigationMode::GoingForward => {
2248 if state.backward_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2249 state.backward_stack.pop_front();
2250 }
2251 state.backward_stack.push_back(NavigationEntry {
2252 item,
2253 data: data.map(|data| Box::new(data) as Box<dyn Any + Send>),
2254 timestamp: state.next_timestamp.fetch_add(1, Ordering::SeqCst),
2255 is_preview,
2256 });
2257 }
2258 NavigationMode::ClosingItem => {
2259 if state.closed_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2260 state.closed_stack.pop_front();
2261 }
2262 state.closed_stack.push_back(NavigationEntry {
2263 item,
2264 data: data.map(|data| Box::new(data) as Box<dyn Any + Send>),
2265 timestamp: state.next_timestamp.fetch_add(1, Ordering::SeqCst),
2266 is_preview,
2267 });
2268 }
2269 }
2270 state.did_update(cx);
2271 }
2272
2273 pub fn remove_item(&mut self, item_id: EntityId) {
2274 let mut state = self.0.lock();
2275 state.paths_by_item.remove(&item_id);
2276 state
2277 .backward_stack
2278 .retain(|entry| entry.item.id() != item_id);
2279 state
2280 .forward_stack
2281 .retain(|entry| entry.item.id() != item_id);
2282 state
2283 .closed_stack
2284 .retain(|entry| entry.item.id() != item_id);
2285 }
2286
2287 pub fn path_for_item(&self, item_id: EntityId) -> Option<(ProjectPath, Option<PathBuf>)> {
2288 self.0.lock().paths_by_item.get(&item_id).cloned()
2289 }
2290}
2291
2292impl NavHistoryState {
2293 pub fn did_update(&self, cx: &mut WindowContext) {
2294 if let Some(pane) = self.pane.upgrade() {
2295 cx.defer(move |cx| {
2296 pane.update(cx, |pane, cx| pane.history_updated(cx));
2297 });
2298 }
2299 }
2300}
2301
2302fn dirty_message_for(buffer_path: Option<ProjectPath>) -> String {
2303 let path = buffer_path
2304 .as_ref()
2305 .and_then(|p| {
2306 p.path
2307 .to_str()
2308 .and_then(|s| if s == "" { None } else { Some(s) })
2309 })
2310 .unwrap_or("This buffer");
2311 let path = truncate_and_remove_front(path, 80);
2312 format!("{path} contains unsaved edits. Do you want to save it?")
2313}
2314
2315pub fn tab_details(items: &Vec<Box<dyn ItemHandle>>, cx: &AppContext) -> Vec<usize> {
2316 let mut tab_details = items.iter().map(|_| 0).collect::<Vec<_>>();
2317 let mut tab_descriptions = HashMap::default();
2318 let mut done = false;
2319 while !done {
2320 done = true;
2321
2322 // Store item indices by their tab description.
2323 for (ix, (item, detail)) in items.iter().zip(&tab_details).enumerate() {
2324 if let Some(description) = item.tab_description(*detail, cx) {
2325 if *detail == 0
2326 || Some(&description) != item.tab_description(detail - 1, cx).as_ref()
2327 {
2328 tab_descriptions
2329 .entry(description)
2330 .or_insert(Vec::new())
2331 .push(ix);
2332 }
2333 }
2334 }
2335
2336 // If two or more items have the same tab description, increase their level
2337 // of detail and try again.
2338 for (_, item_ixs) in tab_descriptions.drain() {
2339 if item_ixs.len() > 1 {
2340 done = false;
2341 for ix in item_ixs {
2342 tab_details[ix] += 1;
2343 }
2344 }
2345 }
2346 }
2347
2348 tab_details
2349}
2350
2351pub fn render_item_indicator(item: Box<dyn ItemHandle>, cx: &WindowContext) -> Option<Indicator> {
2352 maybe!({
2353 let indicator_color = match (item.has_conflict(cx), item.is_dirty(cx)) {
2354 (true, _) => Color::Warning,
2355 (_, true) => Color::Accent,
2356 (false, false) => return None,
2357 };
2358
2359 Some(Indicator::dot().color(indicator_color))
2360 })
2361}
2362
2363#[cfg(test)]
2364mod tests {
2365 use super::*;
2366 use crate::item::test::{TestItem, TestProjectItem};
2367 use gpui::{TestAppContext, VisualTestContext};
2368 use project::FakeFs;
2369 use settings::SettingsStore;
2370 use theme::LoadThemes;
2371
2372 #[gpui::test]
2373 async fn test_remove_active_empty(cx: &mut TestAppContext) {
2374 init_test(cx);
2375 let fs = FakeFs::new(cx.executor());
2376
2377 let project = Project::test(fs, None, cx).await;
2378 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2379 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2380
2381 pane.update(cx, |pane, cx| {
2382 assert!(pane
2383 .close_active_item(&CloseActiveItem { save_intent: None }, cx)
2384 .is_none())
2385 });
2386 }
2387
2388 #[gpui::test]
2389 async fn test_add_item_with_new_item(cx: &mut TestAppContext) {
2390 init_test(cx);
2391 let fs = FakeFs::new(cx.executor());
2392
2393 let project = Project::test(fs, None, cx).await;
2394 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2395 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2396
2397 // 1. Add with a destination index
2398 // a. Add before the active item
2399 set_labeled_items(&pane, ["A", "B*", "C"], cx);
2400 pane.update(cx, |pane, cx| {
2401 pane.add_item(
2402 Box::new(cx.new_view(|cx| TestItem::new(cx).with_label("D"))),
2403 false,
2404 false,
2405 Some(0),
2406 cx,
2407 );
2408 });
2409 assert_item_labels(&pane, ["D*", "A", "B", "C"], cx);
2410
2411 // b. Add after the active item
2412 set_labeled_items(&pane, ["A", "B*", "C"], cx);
2413 pane.update(cx, |pane, cx| {
2414 pane.add_item(
2415 Box::new(cx.new_view(|cx| TestItem::new(cx).with_label("D"))),
2416 false,
2417 false,
2418 Some(2),
2419 cx,
2420 );
2421 });
2422 assert_item_labels(&pane, ["A", "B", "D*", "C"], cx);
2423
2424 // c. Add at the end of the item list (including off the length)
2425 set_labeled_items(&pane, ["A", "B*", "C"], cx);
2426 pane.update(cx, |pane, cx| {
2427 pane.add_item(
2428 Box::new(cx.new_view(|cx| TestItem::new(cx).with_label("D"))),
2429 false,
2430 false,
2431 Some(5),
2432 cx,
2433 );
2434 });
2435 assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2436
2437 // 2. Add without a destination index
2438 // a. Add with active item at the start of the item list
2439 set_labeled_items(&pane, ["A*", "B", "C"], cx);
2440 pane.update(cx, |pane, cx| {
2441 pane.add_item(
2442 Box::new(cx.new_view(|cx| TestItem::new(cx).with_label("D"))),
2443 false,
2444 false,
2445 None,
2446 cx,
2447 );
2448 });
2449 set_labeled_items(&pane, ["A", "D*", "B", "C"], cx);
2450
2451 // b. Add with active item at the end of the item list
2452 set_labeled_items(&pane, ["A", "B", "C*"], cx);
2453 pane.update(cx, |pane, cx| {
2454 pane.add_item(
2455 Box::new(cx.new_view(|cx| TestItem::new(cx).with_label("D"))),
2456 false,
2457 false,
2458 None,
2459 cx,
2460 );
2461 });
2462 assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2463 }
2464
2465 #[gpui::test]
2466 async fn test_add_item_with_existing_item(cx: &mut TestAppContext) {
2467 init_test(cx);
2468 let fs = FakeFs::new(cx.executor());
2469
2470 let project = Project::test(fs, None, cx).await;
2471 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2472 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2473
2474 // 1. Add with a destination index
2475 // 1a. Add before the active item
2476 let [_, _, _, d] = set_labeled_items(&pane, ["A", "B*", "C", "D"], cx);
2477 pane.update(cx, |pane, cx| {
2478 pane.add_item(d, false, false, Some(0), cx);
2479 });
2480 assert_item_labels(&pane, ["D*", "A", "B", "C"], cx);
2481
2482 // 1b. Add after the active item
2483 let [_, _, _, d] = set_labeled_items(&pane, ["A", "B*", "C", "D"], cx);
2484 pane.update(cx, |pane, cx| {
2485 pane.add_item(d, false, false, Some(2), cx);
2486 });
2487 assert_item_labels(&pane, ["A", "B", "D*", "C"], cx);
2488
2489 // 1c. Add at the end of the item list (including off the length)
2490 let [a, _, _, _] = set_labeled_items(&pane, ["A", "B*", "C", "D"], cx);
2491 pane.update(cx, |pane, cx| {
2492 pane.add_item(a, false, false, Some(5), cx);
2493 });
2494 assert_item_labels(&pane, ["B", "C", "D", "A*"], cx);
2495
2496 // 1d. Add same item to active index
2497 let [_, b, _] = set_labeled_items(&pane, ["A", "B*", "C"], cx);
2498 pane.update(cx, |pane, cx| {
2499 pane.add_item(b, false, false, Some(1), cx);
2500 });
2501 assert_item_labels(&pane, ["A", "B*", "C"], cx);
2502
2503 // 1e. Add item to index after same item in last position
2504 let [_, _, c] = set_labeled_items(&pane, ["A", "B*", "C"], cx);
2505 pane.update(cx, |pane, cx| {
2506 pane.add_item(c, false, false, Some(2), cx);
2507 });
2508 assert_item_labels(&pane, ["A", "B", "C*"], cx);
2509
2510 // 2. Add without a destination index
2511 // 2a. Add with active item at the start of the item list
2512 let [_, _, _, d] = set_labeled_items(&pane, ["A*", "B", "C", "D"], cx);
2513 pane.update(cx, |pane, cx| {
2514 pane.add_item(d, false, false, None, cx);
2515 });
2516 assert_item_labels(&pane, ["A", "D*", "B", "C"], cx);
2517
2518 // 2b. Add with active item at the end of the item list
2519 let [a, _, _, _] = set_labeled_items(&pane, ["A", "B", "C", "D*"], cx);
2520 pane.update(cx, |pane, cx| {
2521 pane.add_item(a, false, false, None, cx);
2522 });
2523 assert_item_labels(&pane, ["B", "C", "D", "A*"], cx);
2524
2525 // 2c. Add active item to active item at end of list
2526 let [_, _, c] = set_labeled_items(&pane, ["A", "B", "C*"], cx);
2527 pane.update(cx, |pane, cx| {
2528 pane.add_item(c, false, false, None, cx);
2529 });
2530 assert_item_labels(&pane, ["A", "B", "C*"], cx);
2531
2532 // 2d. Add active item to active item at start of list
2533 let [a, _, _] = set_labeled_items(&pane, ["A*", "B", "C"], cx);
2534 pane.update(cx, |pane, cx| {
2535 pane.add_item(a, false, false, None, cx);
2536 });
2537 assert_item_labels(&pane, ["A*", "B", "C"], cx);
2538 }
2539
2540 #[gpui::test]
2541 async fn test_add_item_with_same_project_entries(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 // singleton view
2550 pane.update(cx, |pane, cx| {
2551 pane.add_item(
2552 Box::new(cx.new_view(|cx| {
2553 TestItem::new(cx)
2554 .with_singleton(true)
2555 .with_label("buffer 1")
2556 .with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
2557 })),
2558 false,
2559 false,
2560 None,
2561 cx,
2562 );
2563 });
2564 assert_item_labels(&pane, ["buffer 1*"], cx);
2565
2566 // new singleton view with the same project entry
2567 pane.update(cx, |pane, cx| {
2568 pane.add_item(
2569 Box::new(cx.new_view(|cx| {
2570 TestItem::new(cx)
2571 .with_singleton(true)
2572 .with_label("buffer 1")
2573 .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
2574 })),
2575 false,
2576 false,
2577 None,
2578 cx,
2579 );
2580 });
2581 assert_item_labels(&pane, ["buffer 1*"], cx);
2582
2583 // new singleton view with different project entry
2584 pane.update(cx, |pane, cx| {
2585 pane.add_item(
2586 Box::new(cx.new_view(|cx| {
2587 TestItem::new(cx)
2588 .with_singleton(true)
2589 .with_label("buffer 2")
2590 .with_project_items(&[TestProjectItem::new(2, "2.txt", cx)])
2591 })),
2592 false,
2593 false,
2594 None,
2595 cx,
2596 );
2597 });
2598 assert_item_labels(&pane, ["buffer 1", "buffer 2*"], cx);
2599
2600 // new multibuffer view with the same project entry
2601 pane.update(cx, |pane, cx| {
2602 pane.add_item(
2603 Box::new(cx.new_view(|cx| {
2604 TestItem::new(cx)
2605 .with_singleton(false)
2606 .with_label("multibuffer 1")
2607 .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
2608 })),
2609 false,
2610 false,
2611 None,
2612 cx,
2613 );
2614 });
2615 assert_item_labels(&pane, ["buffer 1", "buffer 2", "multibuffer 1*"], cx);
2616
2617 // another multibuffer view with the same project entry
2618 pane.update(cx, |pane, cx| {
2619 pane.add_item(
2620 Box::new(cx.new_view(|cx| {
2621 TestItem::new(cx)
2622 .with_singleton(false)
2623 .with_label("multibuffer 1b")
2624 .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
2625 })),
2626 false,
2627 false,
2628 None,
2629 cx,
2630 );
2631 });
2632 assert_item_labels(
2633 &pane,
2634 ["buffer 1", "buffer 2", "multibuffer 1", "multibuffer 1b*"],
2635 cx,
2636 );
2637 }
2638
2639 #[gpui::test]
2640 async fn test_remove_item_ordering(cx: &mut TestAppContext) {
2641 init_test(cx);
2642 let fs = FakeFs::new(cx.executor());
2643
2644 let project = Project::test(fs, None, cx).await;
2645 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2646 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2647
2648 add_labeled_item(&pane, "A", false, cx);
2649 add_labeled_item(&pane, "B", false, cx);
2650 add_labeled_item(&pane, "C", false, cx);
2651 add_labeled_item(&pane, "D", false, cx);
2652 assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2653
2654 pane.update(cx, |pane, cx| pane.activate_item(1, false, false, cx));
2655 add_labeled_item(&pane, "1", false, cx);
2656 assert_item_labels(&pane, ["A", "B", "1*", "C", "D"], cx);
2657
2658 pane.update(cx, |pane, cx| {
2659 pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2660 })
2661 .unwrap()
2662 .await
2663 .unwrap();
2664 assert_item_labels(&pane, ["A", "B*", "C", "D"], cx);
2665
2666 pane.update(cx, |pane, cx| pane.activate_item(3, false, false, cx));
2667 assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2668
2669 pane.update(cx, |pane, cx| {
2670 pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2671 })
2672 .unwrap()
2673 .await
2674 .unwrap();
2675 assert_item_labels(&pane, ["A", "B*", "C"], cx);
2676
2677 pane.update(cx, |pane, cx| {
2678 pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2679 })
2680 .unwrap()
2681 .await
2682 .unwrap();
2683 assert_item_labels(&pane, ["A", "C*"], cx);
2684
2685 pane.update(cx, |pane, cx| {
2686 pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2687 })
2688 .unwrap()
2689 .await
2690 .unwrap();
2691 assert_item_labels(&pane, ["A*"], cx);
2692 }
2693
2694 #[gpui::test]
2695 async fn test_close_inactive_items(cx: &mut TestAppContext) {
2696 init_test(cx);
2697 let fs = FakeFs::new(cx.executor());
2698
2699 let project = Project::test(fs, None, cx).await;
2700 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2701 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2702
2703 set_labeled_items(&pane, ["A", "B", "C*", "D", "E"], cx);
2704
2705 pane.update(cx, |pane, cx| {
2706 pane.close_inactive_items(&CloseInactiveItems { save_intent: None }, cx)
2707 })
2708 .unwrap()
2709 .await
2710 .unwrap();
2711 assert_item_labels(&pane, ["C*"], cx);
2712 }
2713
2714 #[gpui::test]
2715 async fn test_close_clean_items(cx: &mut TestAppContext) {
2716 init_test(cx);
2717 let fs = FakeFs::new(cx.executor());
2718
2719 let project = Project::test(fs, None, cx).await;
2720 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2721 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2722
2723 add_labeled_item(&pane, "A", true, cx);
2724 add_labeled_item(&pane, "B", false, cx);
2725 add_labeled_item(&pane, "C", true, cx);
2726 add_labeled_item(&pane, "D", false, cx);
2727 add_labeled_item(&pane, "E", false, cx);
2728 assert_item_labels(&pane, ["A^", "B", "C^", "D", "E*"], cx);
2729
2730 pane.update(cx, |pane, cx| pane.close_clean_items(&CloseCleanItems, cx))
2731 .unwrap()
2732 .await
2733 .unwrap();
2734 assert_item_labels(&pane, ["A^", "C*^"], cx);
2735 }
2736
2737 #[gpui::test]
2738 async fn test_close_items_to_the_left(cx: &mut TestAppContext) {
2739 init_test(cx);
2740 let fs = FakeFs::new(cx.executor());
2741
2742 let project = Project::test(fs, None, cx).await;
2743 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2744 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2745
2746 set_labeled_items(&pane, ["A", "B", "C*", "D", "E"], cx);
2747
2748 pane.update(cx, |pane, cx| {
2749 pane.close_items_to_the_left(&CloseItemsToTheLeft, cx)
2750 })
2751 .unwrap()
2752 .await
2753 .unwrap();
2754 assert_item_labels(&pane, ["C*", "D", "E"], cx);
2755 }
2756
2757 #[gpui::test]
2758 async fn test_close_items_to_the_right(cx: &mut TestAppContext) {
2759 init_test(cx);
2760 let fs = FakeFs::new(cx.executor());
2761
2762 let project = Project::test(fs, None, cx).await;
2763 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2764 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2765
2766 set_labeled_items(&pane, ["A", "B", "C*", "D", "E"], cx);
2767
2768 pane.update(cx, |pane, cx| {
2769 pane.close_items_to_the_right(&CloseItemsToTheRight, cx)
2770 })
2771 .unwrap()
2772 .await
2773 .unwrap();
2774 assert_item_labels(&pane, ["A", "B", "C*"], cx);
2775 }
2776
2777 #[gpui::test]
2778 async fn test_close_all_items(cx: &mut TestAppContext) {
2779 init_test(cx);
2780 let fs = FakeFs::new(cx.executor());
2781
2782 let project = Project::test(fs, None, cx).await;
2783 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2784 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2785
2786 add_labeled_item(&pane, "A", false, cx);
2787 add_labeled_item(&pane, "B", false, cx);
2788 add_labeled_item(&pane, "C", false, cx);
2789 assert_item_labels(&pane, ["A", "B", "C*"], cx);
2790
2791 pane.update(cx, |pane, cx| {
2792 pane.close_all_items(&CloseAllItems { save_intent: None }, cx)
2793 })
2794 .unwrap()
2795 .await
2796 .unwrap();
2797 assert_item_labels(&pane, [], cx);
2798
2799 add_labeled_item(&pane, "A", true, cx);
2800 add_labeled_item(&pane, "B", true, cx);
2801 add_labeled_item(&pane, "C", true, cx);
2802 assert_item_labels(&pane, ["A^", "B^", "C*^"], cx);
2803
2804 let save = pane
2805 .update(cx, |pane, cx| {
2806 pane.close_all_items(&CloseAllItems { save_intent: None }, cx)
2807 })
2808 .unwrap();
2809
2810 cx.executor().run_until_parked();
2811 cx.simulate_prompt_answer(2);
2812 save.await.unwrap();
2813 assert_item_labels(&pane, [], cx);
2814 }
2815
2816 fn init_test(cx: &mut TestAppContext) {
2817 cx.update(|cx| {
2818 let settings_store = SettingsStore::test(cx);
2819 cx.set_global(settings_store);
2820 theme::init(LoadThemes::JustBase, cx);
2821 crate::init_settings(cx);
2822 Project::init_settings(cx);
2823 });
2824 }
2825
2826 fn add_labeled_item(
2827 pane: &View<Pane>,
2828 label: &str,
2829 is_dirty: bool,
2830 cx: &mut VisualTestContext,
2831 ) -> Box<View<TestItem>> {
2832 pane.update(cx, |pane, cx| {
2833 let labeled_item = Box::new(
2834 cx.new_view(|cx| TestItem::new(cx).with_label(label).with_dirty(is_dirty)),
2835 );
2836 pane.add_item(labeled_item.clone(), false, false, None, cx);
2837 labeled_item
2838 })
2839 }
2840
2841 fn set_labeled_items<const COUNT: usize>(
2842 pane: &View<Pane>,
2843 labels: [&str; COUNT],
2844 cx: &mut VisualTestContext,
2845 ) -> [Box<View<TestItem>>; COUNT] {
2846 pane.update(cx, |pane, cx| {
2847 pane.items.clear();
2848 let mut active_item_index = 0;
2849
2850 let mut index = 0;
2851 let items = labels.map(|mut label| {
2852 if label.ends_with('*') {
2853 label = label.trim_end_matches('*');
2854 active_item_index = index;
2855 }
2856
2857 let labeled_item = Box::new(cx.new_view(|cx| TestItem::new(cx).with_label(label)));
2858 pane.add_item(labeled_item.clone(), false, false, None, cx);
2859 index += 1;
2860 labeled_item
2861 });
2862
2863 pane.activate_item(active_item_index, false, false, cx);
2864
2865 items
2866 })
2867 }
2868
2869 // Assert the item label, with the active item label suffixed with a '*'
2870 fn assert_item_labels<const COUNT: usize>(
2871 pane: &View<Pane>,
2872 expected_states: [&str; COUNT],
2873 cx: &mut VisualTestContext,
2874 ) {
2875 pane.update(cx, |pane, cx| {
2876 let actual_states = pane
2877 .items
2878 .iter()
2879 .enumerate()
2880 .map(|(ix, item)| {
2881 let mut state = item
2882 .to_any()
2883 .downcast::<TestItem>()
2884 .unwrap()
2885 .read(cx)
2886 .label
2887 .clone();
2888 if ix == pane.active_item_index {
2889 state.push('*');
2890 }
2891 if item.is_dirty(cx) {
2892 state.push('^');
2893 }
2894 state
2895 })
2896 .collect::<Vec<_>>();
2897
2898 assert_eq!(
2899 actual_states, expected_states,
2900 "pane items do not match expectation"
2901 );
2902 })
2903 }
2904}
2905
2906impl Render for DraggedTab {
2907 fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
2908 let ui_font = ThemeSettings::get_global(cx).ui_font.family.clone();
2909 let label = self.item.tab_content(
2910 TabContentParams {
2911 detail: Some(self.detail),
2912 selected: false,
2913 preview: false,
2914 },
2915 cx,
2916 );
2917 Tab::new("")
2918 .selected(self.is_active)
2919 .child(label)
2920 .render(cx)
2921 .font(ui_font)
2922 }
2923}