1use crate::{
2 item::{ClosePosition, Item, ItemHandle, ItemSettings, WeakItemHandle},
3 toolbar::Toolbar,
4 workspace_settings::{AutosaveSetting, WorkspaceSettings},
5 NewCenterTerminal, NewFile, NewSearch, SplitDirection, ToggleZoom, Workspace,
6};
7use anyhow::Result;
8use collections::{HashMap, HashSet, VecDeque};
9use gpui::{
10 actions, impl_actions, overlay, prelude::*, Action, AnchorCorner, AppContext,
11 AsyncWindowContext, DismissEvent, Div, DragMoveEvent, EntityId, EventEmitter, FocusHandle,
12 Focusable, FocusableView, Model, MouseButton, NavigationDirection, Pixels, Point, PromptLevel,
13 Render, ScrollHandle, Subscription, Task, View, ViewContext, VisualContext, WeakView,
14 WindowContext,
15};
16use parking_lot::Mutex;
17use project::{Project, ProjectEntryId, ProjectPath};
18use serde::Deserialize;
19use settings::Settings;
20use std::{
21 any::Any,
22 cmp, fmt, mem,
23 path::{Path, PathBuf},
24 sync::{
25 atomic::{AtomicUsize, Ordering},
26 Arc,
27 },
28};
29use theme::ThemeSettings;
30
31use ui::{
32 prelude::*, right_click_menu, ButtonSize, Color, Icon, IconButton, IconSize, Indicator, Label,
33 Tab, TabBar, TabPosition, Tooltip,
34};
35use ui::{v_stack, ContextMenu};
36use util::{maybe, truncate_and_remove_front, ResultExt};
37
38#[derive(PartialEq, Clone, Copy, Deserialize, Debug)]
39#[serde(rename_all = "camelCase")]
40pub enum SaveIntent {
41 /// write all files (even if unchanged)
42 /// prompt before overwriting on-disk changes
43 Save,
44 /// write any files that have local changes
45 /// prompt before overwriting on-disk changes
46 SaveAll,
47 /// always prompt for a new path
48 SaveAs,
49 /// prompt "you have unsaved changes" before writing
50 Close,
51 /// write all dirty files, don't prompt on conflict
52 Overwrite,
53 /// skip all save-related behavior
54 Skip,
55}
56
57#[derive(Clone, Deserialize, PartialEq, Debug)]
58pub struct ActivateItem(pub usize);
59
60// #[derive(Clone, PartialEq)]
61// pub struct CloseItemById {
62// pub item_id: usize,
63// pub pane: WeakView<Pane>,
64// }
65
66// #[derive(Clone, PartialEq)]
67// pub struct CloseItemsToTheLeftById {
68// pub item_id: usize,
69// pub pane: WeakView<Pane>,
70// }
71
72// #[derive(Clone, PartialEq)]
73// pub struct CloseItemsToTheRightById {
74// pub item_id: usize,
75// pub pane: WeakView<Pane>,
76// }
77
78#[derive(Clone, PartialEq, Debug, Deserialize, Default)]
79#[serde(rename_all = "camelCase")]
80pub struct CloseActiveItem {
81 pub save_intent: Option<SaveIntent>,
82}
83
84#[derive(Clone, PartialEq, Debug, Deserialize, Default)]
85#[serde(rename_all = "camelCase")]
86pub struct CloseAllItems {
87 pub save_intent: Option<SaveIntent>,
88}
89
90#[derive(Clone, PartialEq, Debug, Deserialize)]
91#[serde(rename_all = "camelCase")]
92pub struct RevealInProjectPanel {
93 pub entry_id: u64,
94}
95
96impl_actions!(
97 pane,
98 [
99 CloseAllItems,
100 CloseActiveItem,
101 ActivateItem,
102 RevealInProjectPanel
103 ]
104);
105
106actions!(
107 pane,
108 [
109 ActivatePrevItem,
110 ActivateNextItem,
111 ActivateLastItem,
112 CloseInactiveItems,
113 CloseCleanItems,
114 CloseItemsToTheLeft,
115 CloseItemsToTheRight,
116 GoBack,
117 GoForward,
118 ReopenClosedItem,
119 SplitLeft,
120 SplitUp,
121 SplitRight,
122 SplitDown,
123 ]
124);
125
126const MAX_NAVIGATION_HISTORY_LEN: usize = 1024;
127
128pub enum Event {
129 AddItem { item: Box<dyn ItemHandle> },
130 ActivateItem { local: bool },
131 Remove,
132 RemoveItem { item_id: EntityId },
133 Split(SplitDirection),
134 ChangeItemTitle,
135 Focus,
136 ZoomIn,
137 ZoomOut,
138}
139
140impl fmt::Debug for Event {
141 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
142 match self {
143 Event::AddItem { item } => f
144 .debug_struct("AddItem")
145 .field("item", &item.item_id())
146 .finish(),
147 Event::ActivateItem { local } => f
148 .debug_struct("ActivateItem")
149 .field("local", local)
150 .finish(),
151 Event::Remove => f.write_str("Remove"),
152 Event::RemoveItem { item_id } => f
153 .debug_struct("RemoveItem")
154 .field("item_id", item_id)
155 .finish(),
156 Event::Split(direction) => f
157 .debug_struct("Split")
158 .field("direction", direction)
159 .finish(),
160 Event::ChangeItemTitle => f.write_str("ChangeItemTitle"),
161 Event::Focus => f.write_str("Focus"),
162 Event::ZoomIn => f.write_str("ZoomIn"),
163 Event::ZoomOut => f.write_str("ZoomOut"),
164 }
165 }
166}
167
168pub struct Pane {
169 focus_handle: FocusHandle,
170 items: Vec<Box<dyn ItemHandle>>,
171 activation_history: Vec<EntityId>,
172 zoomed: bool,
173 was_focused: bool,
174 active_item_index: usize,
175 last_focused_view_by_item: HashMap<EntityId, FocusHandle>,
176 nav_history: NavHistory,
177 toolbar: View<Toolbar>,
178 new_item_menu: Option<View<ContextMenu>>,
179 split_item_menu: Option<View<ContextMenu>>,
180 // tab_context_menu: View<ContextMenu>,
181 workspace: WeakView<Workspace>,
182 project: Model<Project>,
183 drag_split_direction: Option<SplitDirection>,
184 can_drop_predicate: Option<Arc<dyn Fn(&dyn Any, &mut WindowContext) -> bool>>,
185 can_split: bool,
186 // render_tab_bar_buttons: Rc<dyn Fn(&mut Pane, &mut ViewContext<Pane>) -> AnyElement<Pane>>,
187 _subscriptions: Vec<Subscription>,
188 tab_bar_scroll_handle: ScrollHandle,
189}
190
191pub struct ItemNavHistory {
192 history: NavHistory,
193 item: Arc<dyn WeakItemHandle>,
194}
195
196#[derive(Clone)]
197pub struct NavHistory(Arc<Mutex<NavHistoryState>>);
198
199struct NavHistoryState {
200 mode: NavigationMode,
201 backward_stack: VecDeque<NavigationEntry>,
202 forward_stack: VecDeque<NavigationEntry>,
203 closed_stack: VecDeque<NavigationEntry>,
204 paths_by_item: HashMap<EntityId, (ProjectPath, Option<PathBuf>)>,
205 pane: WeakView<Pane>,
206 next_timestamp: Arc<AtomicUsize>,
207}
208
209#[derive(Copy, Clone)]
210pub enum NavigationMode {
211 Normal,
212 GoingBack,
213 GoingForward,
214 ClosingItem,
215 ReopeningClosedItem,
216 Disabled,
217}
218
219impl Default for NavigationMode {
220 fn default() -> Self {
221 Self::Normal
222 }
223}
224
225pub struct NavigationEntry {
226 pub item: Arc<dyn WeakItemHandle>,
227 pub data: Option<Box<dyn Any + Send>>,
228 pub timestamp: usize,
229}
230
231#[derive(Clone)]
232pub struct DraggedTab {
233 pub pane: View<Pane>,
234 pub ix: usize,
235 pub item_id: EntityId,
236 pub detail: usize,
237 pub is_active: bool,
238}
239
240// pub struct DraggedItem {
241// pub handle: Box<dyn ItemHandle>,
242// pub pane: WeakView<Pane>,
243// }
244
245// pub enum ReorderBehavior {
246// None,
247// MoveAfterActive,
248// MoveToIndex(usize),
249// }
250
251// #[derive(Debug, Clone, Copy, PartialEq, Eq)]
252// enum TabBarContextMenuKind {
253// New,
254// Split,
255// }
256
257// struct TabBarContextMenu {
258// kind: TabBarContextMenuKind,
259// handle: View<ContextMenu>,
260// }
261
262// impl TabBarContextMenu {
263// fn handle_if_kind(&self, kind: TabBarContextMenuKind) -> Option<View<ContextMenu>> {
264// if self.kind == kind {
265// return Some(self.handle.clone());
266// }
267// None
268// }
269// }
270
271// #[allow(clippy::too_many_arguments)]
272// fn nav_button<A: Action, F: 'static + Fn(&mut Pane, &mut ViewContext<Pane>)>(
273// svg_path: &'static str,
274// style: theme2::Interactive<theme2::IconButton>,
275// nav_button_height: f32,
276// tooltip_style: TooltipStyle,
277// enabled: bool,
278// on_click: F,
279// tooltip_action: A,
280// action_name: &str,
281// cx: &mut ViewContext<Pane>,
282// ) -> AnyElement<Pane> {
283// MouseEventHandler::new::<A, _>(0, cx, |state, _| {
284// let style = if enabled {
285// style.style_for(state)
286// } else {
287// style.disabled_style()
288// };
289// Svg::new(svg_path)
290// .with_color(style.color)
291// .constrained()
292// .with_width(style.icon_width)
293// .aligned()
294// .contained()
295// .with_style(style.container)
296// .constrained()
297// .with_width(style.button_width)
298// .with_height(nav_button_height)
299// .aligned()
300// .top()
301// })
302// .with_cursor_style(if enabled {
303// CursorStyle::PointingHand
304// } else {
305// CursorStyle::default()
306// })
307// .on_click(MouseButton::Left, move |_, toolbar, cx| {
308// on_click(toolbar, cx)
309// })
310// .with_tooltip::<A>(
311// 0,
312// action_name.to_string(),
313// Some(Box::new(tooltip_action)),
314// tooltip_style,
315// cx,
316// )
317// .contained()
318// .into_any_named("nav button")
319// }
320
321impl EventEmitter<Event> for Pane {}
322
323impl Pane {
324 pub fn new(
325 workspace: WeakView<Workspace>,
326 project: Model<Project>,
327 next_timestamp: Arc<AtomicUsize>,
328 can_drop_predicate: Option<Arc<dyn Fn(&dyn Any, &mut WindowContext) -> bool + 'static>>,
329 cx: &mut ViewContext<Self>,
330 ) -> Self {
331 // todo!("context menu")
332 // let pane_view_id = cx.view_id();
333 // let context_menu = cx.build_view(|cx| ContextMenu::new(pane_view_id, cx));
334 // context_menu.update(cx, |menu, _| {
335 // menu.set_position_mode(OverlayPositionMode::Local)
336 // });
337 //
338 let focus_handle = cx.focus_handle();
339
340 let subscriptions = vec![
341 cx.on_focus_in(&focus_handle, move |this, cx| this.focus_in(cx)),
342 cx.on_focus_out(&focus_handle, move |this, cx| this.focus_out(cx)),
343 ];
344
345 let handle = cx.view().downgrade();
346 Self {
347 focus_handle,
348 items: Vec::new(),
349 activation_history: Vec::new(),
350 was_focused: false,
351 zoomed: false,
352 active_item_index: 0,
353 last_focused_view_by_item: Default::default(),
354 nav_history: NavHistory(Arc::new(Mutex::new(NavHistoryState {
355 mode: NavigationMode::Normal,
356 backward_stack: Default::default(),
357 forward_stack: Default::default(),
358 closed_stack: Default::default(),
359 paths_by_item: Default::default(),
360 pane: handle.clone(),
361 next_timestamp,
362 }))),
363 toolbar: cx.build_view(|_| Toolbar::new()),
364 new_item_menu: None,
365 split_item_menu: None,
366 tab_bar_scroll_handle: ScrollHandle::new(),
367 drag_split_direction: None,
368 // tab_bar_context_menu: TabBarContextMenu {
369 // kind: TabBarContextMenuKind::New,
370 // handle: context_menu,
371 // },
372 // tab_context_menu: cx.build_view(|_| ContextMenu::new(pane_view_id, cx)),
373 workspace,
374 project,
375 can_drop_predicate,
376 can_split: true,
377 // render_tab_bar_buttons: Rc::new(move |pane, cx| {
378 // Flex::row()
379 // // New menu
380 // .with_child(Self::render_tab_bar_button(
381 // 0,
382 // "icons/plus.svg",
383 // false,
384 // Some(("New...".into(), None)),
385 // cx,
386 // |pane, cx| pane.deploy_new_menu(cx),
387 // |pane, cx| {
388 // pane.tab_bar_context_menu
389 // .handle
390 // .update(cx, |menu, _| menu.delay_cancel())
391 // },
392 // pane.tab_bar_context_menu
393 // .handle_if_kind(TabBarContextMenuKind::New),
394 // ))
395 // .with_child(Self::render_tab_bar_button(
396 // 1,
397 // "icons/split.svg",
398 // false,
399 // Some(("Split Pane".into(), None)),
400 // cx,
401 // |pane, cx| pane.deploy_split_menu(cx),
402 // |pane, cx| {
403 // pane.tab_bar_context_menu
404 // .handle
405 // .update(cx, |menu, _| menu.delay_cancel())
406 // },
407 // pane.tab_bar_context_menu
408 // .handle_if_kind(TabBarContextMenuKind::Split),
409 // ))
410 // .with_child({
411 // let icon_path;
412 // let tooltip_label;
413 // if pane.is_zoomed() {
414 // icon_path = "icons/minimize.svg";
415 // tooltip_label = "Zoom In";
416 // } else {
417 // icon_path = "icons/maximize.svg";
418 // tooltip_label = "Zoom In";
419 // }
420
421 // Pane::render_tab_bar_button(
422 // 2,
423 // icon_path,
424 // pane.is_zoomed(),
425 // Some((tooltip_label, Some(Box::new(ToggleZoom)))),
426 // cx,
427 // move |pane, cx| pane.toggle_zoom(&Default::default(), cx),
428 // move |_, _| {},
429 // None,
430 // )
431 // })
432 // .into_any()
433 // }),
434 _subscriptions: subscriptions,
435 }
436 }
437
438 pub fn has_focus(&self, cx: &WindowContext) -> bool {
439 // todo!(); // inline this manually
440 self.focus_handle.contains_focused(cx)
441 }
442
443 fn focus_in(&mut self, cx: &mut ViewContext<Self>) {
444 if !self.was_focused {
445 self.was_focused = true;
446 cx.emit(Event::Focus);
447 cx.notify();
448 }
449
450 self.toolbar.update(cx, |toolbar, cx| {
451 toolbar.focus_changed(true, cx);
452 });
453
454 if let Some(active_item) = self.active_item() {
455 if self.focus_handle.is_focused(cx) {
456 // Pane was focused directly. We need to either focus a view inside the active item,
457 // or focus the active item itself
458 if let Some(weak_last_focused_view) =
459 self.last_focused_view_by_item.get(&active_item.item_id())
460 {
461 weak_last_focused_view.focus(cx);
462 return;
463 }
464
465 active_item.focus_handle(cx).focus(cx);
466 } else if let Some(focused) = cx.focused() {
467 if !self.context_menu_focused(cx) {
468 self.last_focused_view_by_item
469 .insert(active_item.item_id(), focused);
470 }
471 }
472 }
473 }
474
475 fn context_menu_focused(&self, cx: &mut ViewContext<Self>) -> bool {
476 self.new_item_menu
477 .as_ref()
478 .or(self.split_item_menu.as_ref())
479 .map_or(false, |menu| menu.focus_handle(cx).is_focused(cx))
480 }
481
482 fn focus_out(&mut self, cx: &mut ViewContext<Self>) {
483 self.was_focused = false;
484 self.toolbar.update(cx, |toolbar, cx| {
485 toolbar.focus_changed(false, cx);
486 });
487 cx.notify();
488 }
489
490 pub fn active_item_index(&self) -> usize {
491 self.active_item_index
492 }
493
494 // pub fn on_can_drop<F>(&mut self, can_drop: F)
495 // where
496 // F: 'static + Fn(&DragAndDrop<Workspace>, &WindowContext) -> bool,
497 // {
498 // self.can_drop = Rc::new(can_drop);
499 // }
500
501 pub fn set_can_split(&mut self, can_split: bool, cx: &mut ViewContext<Self>) {
502 self.can_split = can_split;
503 cx.notify();
504 }
505
506 pub fn set_can_navigate(&mut self, can_navigate: bool, cx: &mut ViewContext<Self>) {
507 self.toolbar.update(cx, |toolbar, cx| {
508 toolbar.set_can_navigate(can_navigate, cx);
509 });
510 cx.notify();
511 }
512
513 // pub fn set_render_tab_bar_buttons<F>(&mut self, cx: &mut ViewContext<Self>, render: F)
514 // where
515 // F: 'static + Fn(&mut Pane, &mut ViewContext<Pane>) -> AnyElement<Pane>,
516 // {
517 // self.render_tab_bar_buttons = Rc::new(render);
518 // cx.notify();
519 // }
520
521 pub fn nav_history_for_item<T: Item>(&self, item: &View<T>) -> ItemNavHistory {
522 ItemNavHistory {
523 history: self.nav_history.clone(),
524 item: Arc::new(item.downgrade()),
525 }
526 }
527
528 pub fn nav_history(&self) -> &NavHistory {
529 &self.nav_history
530 }
531
532 pub fn nav_history_mut(&mut self) -> &mut NavHistory {
533 &mut self.nav_history
534 }
535
536 pub fn disable_history(&mut self) {
537 self.nav_history.disable();
538 }
539
540 pub fn enable_history(&mut self) {
541 self.nav_history.enable();
542 }
543
544 pub fn can_navigate_backward(&self) -> bool {
545 !self.nav_history.0.lock().backward_stack.is_empty()
546 }
547
548 pub fn can_navigate_forward(&self) -> bool {
549 !self.nav_history.0.lock().forward_stack.is_empty()
550 }
551
552 fn navigate_backward(&mut self, cx: &mut ViewContext<Self>) {
553 if let Some(workspace) = self.workspace.upgrade() {
554 let pane = cx.view().downgrade();
555 cx.window_context().defer(move |cx| {
556 workspace.update(cx, |workspace, cx| {
557 workspace.go_back(pane, cx).detach_and_log_err(cx)
558 })
559 })
560 }
561 }
562
563 fn navigate_forward(&mut self, cx: &mut ViewContext<Self>) {
564 if let Some(workspace) = self.workspace.upgrade() {
565 let pane = cx.view().downgrade();
566 cx.window_context().defer(move |cx| {
567 workspace.update(cx, |workspace, cx| {
568 workspace.go_forward(pane, cx).detach_and_log_err(cx)
569 })
570 })
571 }
572 }
573
574 fn history_updated(&mut self, cx: &mut ViewContext<Self>) {
575 self.toolbar.update(cx, |_, cx| cx.notify());
576 }
577
578 pub(crate) fn open_item(
579 &mut self,
580 project_entry_id: Option<ProjectEntryId>,
581 focus_item: bool,
582 cx: &mut ViewContext<Self>,
583 build_item: impl FnOnce(&mut ViewContext<Pane>) -> Box<dyn ItemHandle>,
584 ) -> Box<dyn ItemHandle> {
585 let mut existing_item = None;
586 if let Some(project_entry_id) = project_entry_id {
587 for (index, item) in self.items.iter().enumerate() {
588 if item.is_singleton(cx)
589 && item.project_entry_ids(cx).as_slice() == [project_entry_id]
590 {
591 let item = item.boxed_clone();
592 existing_item = Some((index, item));
593 break;
594 }
595 }
596 }
597
598 if let Some((index, existing_item)) = existing_item {
599 self.activate_item(index, focus_item, focus_item, cx);
600 existing_item
601 } else {
602 let new_item = build_item(cx);
603 self.add_item(new_item.clone(), true, focus_item, None, cx);
604 new_item
605 }
606 }
607
608 pub fn add_item(
609 &mut self,
610 item: Box<dyn ItemHandle>,
611 activate_pane: bool,
612 focus_item: bool,
613 destination_index: Option<usize>,
614 cx: &mut ViewContext<Self>,
615 ) {
616 if item.is_singleton(cx) {
617 if let Some(&entry_id) = item.project_entry_ids(cx).get(0) {
618 let project = self.project.read(cx);
619 if let Some(project_path) = project.path_for_entry(entry_id, cx) {
620 let abs_path = project.absolute_path(&project_path, cx);
621 self.nav_history
622 .0
623 .lock()
624 .paths_by_item
625 .insert(item.item_id(), (project_path, abs_path));
626 }
627 }
628 }
629 // If no destination index is specified, add or move the item after the active item.
630 let mut insertion_index = {
631 cmp::min(
632 if let Some(destination_index) = destination_index {
633 destination_index
634 } else {
635 self.active_item_index + 1
636 },
637 self.items.len(),
638 )
639 };
640
641 // Does the item already exist?
642 let project_entry_id = if item.is_singleton(cx) {
643 item.project_entry_ids(cx).get(0).copied()
644 } else {
645 None
646 };
647
648 let existing_item_index = self.items.iter().position(|existing_item| {
649 if existing_item.item_id() == item.item_id() {
650 true
651 } else if existing_item.is_singleton(cx) {
652 existing_item
653 .project_entry_ids(cx)
654 .get(0)
655 .map_or(false, |existing_entry_id| {
656 Some(existing_entry_id) == project_entry_id.as_ref()
657 })
658 } else {
659 false
660 }
661 });
662
663 if let Some(existing_item_index) = existing_item_index {
664 // If the item already exists, move it to the desired destination and activate it
665
666 if existing_item_index != insertion_index {
667 let existing_item_is_active = existing_item_index == self.active_item_index;
668
669 // If the caller didn't specify a destination and the added item is already
670 // the active one, don't move it
671 if existing_item_is_active && destination_index.is_none() {
672 insertion_index = existing_item_index;
673 } else {
674 self.items.remove(existing_item_index);
675 if existing_item_index < self.active_item_index {
676 self.active_item_index -= 1;
677 }
678 insertion_index = insertion_index.min(self.items.len());
679
680 self.items.insert(insertion_index, item.clone());
681
682 if existing_item_is_active {
683 self.active_item_index = insertion_index;
684 } else if insertion_index <= self.active_item_index {
685 self.active_item_index += 1;
686 }
687 }
688
689 cx.notify();
690 }
691
692 self.activate_item(insertion_index, activate_pane, focus_item, cx);
693 } else {
694 self.items.insert(insertion_index, item.clone());
695 if insertion_index <= self.active_item_index {
696 self.active_item_index += 1;
697 }
698
699 self.activate_item(insertion_index, activate_pane, focus_item, cx);
700 cx.notify();
701 }
702
703 cx.emit(Event::AddItem { item });
704 }
705
706 pub fn items_len(&self) -> usize {
707 self.items.len()
708 }
709
710 pub fn items(&self) -> impl Iterator<Item = &Box<dyn ItemHandle>> + DoubleEndedIterator {
711 self.items.iter()
712 }
713
714 pub fn items_of_type<T: Render>(&self) -> impl '_ + Iterator<Item = View<T>> {
715 self.items
716 .iter()
717 .filter_map(|item| item.to_any().downcast().ok())
718 }
719
720 pub fn active_item(&self) -> Option<Box<dyn ItemHandle>> {
721 self.items.get(self.active_item_index).cloned()
722 }
723
724 pub fn pixel_position_of_cursor(&self, cx: &AppContext) -> Option<Point<Pixels>> {
725 self.items
726 .get(self.active_item_index)?
727 .pixel_position_of_cursor(cx)
728 }
729
730 pub fn item_for_entry(
731 &self,
732 entry_id: ProjectEntryId,
733 cx: &AppContext,
734 ) -> Option<Box<dyn ItemHandle>> {
735 self.items.iter().find_map(|item| {
736 if item.is_singleton(cx) && item.project_entry_ids(cx).as_slice() == [entry_id] {
737 Some(item.boxed_clone())
738 } else {
739 None
740 }
741 })
742 }
743
744 pub fn index_for_item(&self, item: &dyn ItemHandle) -> Option<usize> {
745 self.items
746 .iter()
747 .position(|i| i.item_id() == item.item_id())
748 }
749
750 pub fn item_for_index(&self, ix: usize) -> Option<&dyn ItemHandle> {
751 self.items.get(ix).map(|i| i.as_ref())
752 }
753
754 pub fn toggle_zoom(&mut self, _: &ToggleZoom, cx: &mut ViewContext<Self>) {
755 if self.zoomed {
756 cx.emit(Event::ZoomOut);
757 } else if !self.items.is_empty() {
758 if !self.focus_handle.contains_focused(cx) {
759 cx.focus_self();
760 }
761 cx.emit(Event::ZoomIn);
762 }
763 }
764
765 pub fn activate_item(
766 &mut self,
767 index: usize,
768 activate_pane: bool,
769 focus_item: bool,
770 cx: &mut ViewContext<Self>,
771 ) {
772 use NavigationMode::{GoingBack, GoingForward};
773
774 if index < self.items.len() {
775 let prev_active_item_ix = mem::replace(&mut self.active_item_index, index);
776 if prev_active_item_ix != self.active_item_index
777 || matches!(self.nav_history.mode(), GoingBack | GoingForward)
778 {
779 if let Some(prev_item) = self.items.get(prev_active_item_ix) {
780 prev_item.deactivated(cx);
781 }
782
783 cx.emit(Event::ActivateItem {
784 local: activate_pane,
785 });
786 }
787
788 if let Some(newly_active_item) = self.items.get(index) {
789 self.activation_history
790 .retain(|&previously_active_item_id| {
791 previously_active_item_id != newly_active_item.item_id()
792 });
793 self.activation_history.push(newly_active_item.item_id());
794 }
795
796 self.update_toolbar(cx);
797 self.update_status_bar(cx);
798
799 if focus_item {
800 self.focus_active_item(cx);
801 }
802
803 self.tab_bar_scroll_handle.scroll_to_item(index);
804 cx.notify();
805 }
806 }
807
808 pub fn activate_prev_item(&mut self, activate_pane: bool, cx: &mut ViewContext<Self>) {
809 let mut index = self.active_item_index;
810 if index > 0 {
811 index -= 1;
812 } else if !self.items.is_empty() {
813 index = self.items.len() - 1;
814 }
815 self.activate_item(index, activate_pane, activate_pane, cx);
816 }
817
818 pub fn activate_next_item(&mut self, activate_pane: bool, cx: &mut ViewContext<Self>) {
819 let mut index = self.active_item_index;
820 if index + 1 < self.items.len() {
821 index += 1;
822 } else {
823 index = 0;
824 }
825 self.activate_item(index, activate_pane, activate_pane, cx);
826 }
827
828 pub fn close_active_item(
829 &mut self,
830 action: &CloseActiveItem,
831 cx: &mut ViewContext<Self>,
832 ) -> Option<Task<Result<()>>> {
833 if self.items.is_empty() {
834 return None;
835 }
836 let active_item_id = self.items[self.active_item_index].item_id();
837 Some(self.close_item_by_id(
838 active_item_id,
839 action.save_intent.unwrap_or(SaveIntent::Close),
840 cx,
841 ))
842 }
843
844 pub fn close_item_by_id(
845 &mut self,
846 item_id_to_close: EntityId,
847 save_intent: SaveIntent,
848 cx: &mut ViewContext<Self>,
849 ) -> Task<Result<()>> {
850 self.close_items(cx, save_intent, move |view_id| view_id == item_id_to_close)
851 }
852
853 pub fn close_inactive_items(
854 &mut self,
855 _: &CloseInactiveItems,
856 cx: &mut ViewContext<Self>,
857 ) -> Option<Task<Result<()>>> {
858 if self.items.is_empty() {
859 return None;
860 }
861
862 let active_item_id = self.items[self.active_item_index].item_id();
863 Some(self.close_items(cx, SaveIntent::Close, move |item_id| {
864 item_id != active_item_id
865 }))
866 }
867
868 pub fn close_clean_items(
869 &mut self,
870 _: &CloseCleanItems,
871 cx: &mut ViewContext<Self>,
872 ) -> Option<Task<Result<()>>> {
873 let item_ids: Vec<_> = self
874 .items()
875 .filter(|item| !item.is_dirty(cx))
876 .map(|item| item.item_id())
877 .collect();
878 Some(self.close_items(cx, SaveIntent::Close, move |item_id| {
879 item_ids.contains(&item_id)
880 }))
881 }
882
883 pub fn close_items_to_the_left(
884 &mut self,
885 _: &CloseItemsToTheLeft,
886 cx: &mut ViewContext<Self>,
887 ) -> Option<Task<Result<()>>> {
888 if self.items.is_empty() {
889 return None;
890 }
891 let active_item_id = self.items[self.active_item_index].item_id();
892 Some(self.close_items_to_the_left_by_id(active_item_id, cx))
893 }
894
895 pub fn close_items_to_the_left_by_id(
896 &mut self,
897 item_id: EntityId,
898 cx: &mut ViewContext<Self>,
899 ) -> Task<Result<()>> {
900 let item_ids: Vec<_> = self
901 .items()
902 .take_while(|item| item.item_id() != item_id)
903 .map(|item| item.item_id())
904 .collect();
905 self.close_items(cx, SaveIntent::Close, move |item_id| {
906 item_ids.contains(&item_id)
907 })
908 }
909
910 pub fn close_items_to_the_right(
911 &mut self,
912 _: &CloseItemsToTheRight,
913 cx: &mut ViewContext<Self>,
914 ) -> Option<Task<Result<()>>> {
915 if self.items.is_empty() {
916 return None;
917 }
918 let active_item_id = self.items[self.active_item_index].item_id();
919 Some(self.close_items_to_the_right_by_id(active_item_id, cx))
920 }
921
922 pub fn close_items_to_the_right_by_id(
923 &mut self,
924 item_id: EntityId,
925 cx: &mut ViewContext<Self>,
926 ) -> Task<Result<()>> {
927 let item_ids: Vec<_> = self
928 .items()
929 .rev()
930 .take_while(|item| item.item_id() != item_id)
931 .map(|item| item.item_id())
932 .collect();
933 self.close_items(cx, SaveIntent::Close, move |item_id| {
934 item_ids.contains(&item_id)
935 })
936 }
937
938 pub fn close_all_items(
939 &mut self,
940 action: &CloseAllItems,
941 cx: &mut ViewContext<Self>,
942 ) -> Option<Task<Result<()>>> {
943 if self.items.is_empty() {
944 return None;
945 }
946
947 Some(
948 self.close_items(cx, action.save_intent.unwrap_or(SaveIntent::Close), |_| {
949 true
950 }),
951 )
952 }
953
954 pub(super) fn file_names_for_prompt(
955 items: &mut dyn Iterator<Item = &Box<dyn ItemHandle>>,
956 all_dirty_items: usize,
957 cx: &AppContext,
958 ) -> String {
959 /// Quantity of item paths displayed in prompt prior to cutoff..
960 const FILE_NAMES_CUTOFF_POINT: usize = 10;
961 let mut file_names: Vec<_> = items
962 .filter_map(|item| {
963 item.project_path(cx).and_then(|project_path| {
964 project_path
965 .path
966 .file_name()
967 .and_then(|name| name.to_str().map(ToOwned::to_owned))
968 })
969 })
970 .take(FILE_NAMES_CUTOFF_POINT)
971 .collect();
972 let should_display_followup_text =
973 all_dirty_items > FILE_NAMES_CUTOFF_POINT || file_names.len() != all_dirty_items;
974 if should_display_followup_text {
975 let not_shown_files = all_dirty_items - file_names.len();
976 if not_shown_files == 1 {
977 file_names.push(".. 1 file not shown".into());
978 } else {
979 file_names.push(format!(".. {} files not shown", not_shown_files).into());
980 }
981 }
982 let file_names = file_names.join("\n");
983 format!(
984 "Do you want to save changes to the following {} files?\n{file_names}",
985 all_dirty_items
986 )
987 }
988
989 pub fn close_items(
990 &mut self,
991 cx: &mut ViewContext<Pane>,
992 mut save_intent: SaveIntent,
993 should_close: impl 'static + Fn(EntityId) -> bool,
994 ) -> Task<Result<()>> {
995 // Find the items to close.
996 let mut items_to_close = Vec::new();
997 let mut dirty_items = Vec::new();
998 for item in &self.items {
999 if should_close(item.item_id()) {
1000 items_to_close.push(item.boxed_clone());
1001 if item.is_dirty(cx) {
1002 dirty_items.push(item.boxed_clone());
1003 }
1004 }
1005 }
1006
1007 // If a buffer is open both in a singleton editor and in a multibuffer, make sure
1008 // to focus the singleton buffer when prompting to save that buffer, as opposed
1009 // to focusing the multibuffer, because this gives the user a more clear idea
1010 // of what content they would be saving.
1011 items_to_close.sort_by_key(|item| !item.is_singleton(cx));
1012
1013 let workspace = self.workspace.clone();
1014 cx.spawn(|pane, mut cx| async move {
1015 if save_intent == SaveIntent::Close && dirty_items.len() > 1 {
1016 let answer = pane.update(&mut cx, |_, cx| {
1017 let prompt =
1018 Self::file_names_for_prompt(&mut dirty_items.iter(), dirty_items.len(), cx);
1019 cx.prompt(
1020 PromptLevel::Warning,
1021 &prompt,
1022 &["Save all", "Discard all", "Cancel"],
1023 )
1024 })?;
1025 match answer.await {
1026 Ok(0) => save_intent = SaveIntent::SaveAll,
1027 Ok(1) => save_intent = SaveIntent::Skip,
1028 _ => {}
1029 }
1030 }
1031 let mut saved_project_items_ids = HashSet::default();
1032 for item in items_to_close.clone() {
1033 // Find the item's current index and its set of project item models. Avoid
1034 // storing these in advance, in case they have changed since this task
1035 // was started.
1036 let (item_ix, mut project_item_ids) = pane.update(&mut cx, |pane, cx| {
1037 (pane.index_for_item(&*item), item.project_item_model_ids(cx))
1038 })?;
1039 let item_ix = if let Some(ix) = item_ix {
1040 ix
1041 } else {
1042 continue;
1043 };
1044
1045 // Check if this view has any project items that are not open anywhere else
1046 // in the workspace, AND that the user has not already been prompted to save.
1047 // If there are any such project entries, prompt the user to save this item.
1048 let project = workspace.update(&mut cx, |workspace, cx| {
1049 for item in workspace.items(cx) {
1050 if !items_to_close
1051 .iter()
1052 .any(|item_to_close| item_to_close.item_id() == item.item_id())
1053 {
1054 let other_project_item_ids = item.project_item_model_ids(cx);
1055 project_item_ids.retain(|id| !other_project_item_ids.contains(id));
1056 }
1057 }
1058 workspace.project().clone()
1059 })?;
1060 let should_save = project_item_ids
1061 .iter()
1062 .any(|id| saved_project_items_ids.insert(*id));
1063
1064 if should_save
1065 && !Self::save_item(
1066 project.clone(),
1067 &pane,
1068 item_ix,
1069 &*item,
1070 save_intent,
1071 &mut cx,
1072 )
1073 .await?
1074 {
1075 break;
1076 }
1077
1078 // Remove the item from the pane.
1079 pane.update(&mut cx, |pane, cx| {
1080 if let Some(item_ix) = pane
1081 .items
1082 .iter()
1083 .position(|i| i.item_id() == item.item_id())
1084 {
1085 pane.remove_item(item_ix, false, cx);
1086 }
1087 })
1088 .ok();
1089 }
1090
1091 pane.update(&mut cx, |_, cx| cx.notify()).ok();
1092 Ok(())
1093 })
1094 }
1095
1096 pub fn remove_item(
1097 &mut self,
1098 item_index: usize,
1099 activate_pane: bool,
1100 cx: &mut ViewContext<Self>,
1101 ) {
1102 self.activation_history
1103 .retain(|&history_entry| history_entry != self.items[item_index].item_id());
1104
1105 if item_index == self.active_item_index {
1106 let index_to_activate = self
1107 .activation_history
1108 .pop()
1109 .and_then(|last_activated_item| {
1110 self.items.iter().enumerate().find_map(|(index, item)| {
1111 (item.item_id() == last_activated_item).then_some(index)
1112 })
1113 })
1114 // We didn't have a valid activation history entry, so fallback
1115 // to activating the item to the left
1116 .unwrap_or_else(|| item_index.min(self.items.len()).saturating_sub(1));
1117
1118 let should_activate = activate_pane || self.has_focus(cx);
1119 if self.items.len() == 1 && should_activate {
1120 self.focus_handle.focus(cx);
1121 } else {
1122 self.activate_item(index_to_activate, should_activate, should_activate, cx);
1123 }
1124 }
1125
1126 let item = self.items.remove(item_index);
1127
1128 cx.emit(Event::RemoveItem {
1129 item_id: item.item_id(),
1130 });
1131 if self.items.is_empty() {
1132 item.deactivated(cx);
1133 self.update_toolbar(cx);
1134 cx.emit(Event::Remove);
1135 }
1136
1137 if item_index < self.active_item_index {
1138 self.active_item_index -= 1;
1139 }
1140
1141 self.nav_history.set_mode(NavigationMode::ClosingItem);
1142 item.deactivated(cx);
1143 self.nav_history.set_mode(NavigationMode::Normal);
1144
1145 if let Some(path) = item.project_path(cx) {
1146 let abs_path = self
1147 .nav_history
1148 .0
1149 .lock()
1150 .paths_by_item
1151 .get(&item.item_id())
1152 .and_then(|(_, abs_path)| abs_path.clone());
1153
1154 self.nav_history
1155 .0
1156 .lock()
1157 .paths_by_item
1158 .insert(item.item_id(), (path, abs_path));
1159 } else {
1160 self.nav_history
1161 .0
1162 .lock()
1163 .paths_by_item
1164 .remove(&item.item_id());
1165 }
1166
1167 if self.items.is_empty() && self.zoomed {
1168 cx.emit(Event::ZoomOut);
1169 }
1170
1171 cx.notify();
1172 }
1173
1174 pub async fn save_item(
1175 project: Model<Project>,
1176 pane: &WeakView<Pane>,
1177 item_ix: usize,
1178 item: &dyn ItemHandle,
1179 save_intent: SaveIntent,
1180 cx: &mut AsyncWindowContext,
1181 ) -> Result<bool> {
1182 const CONFLICT_MESSAGE: &str =
1183 "This file has changed on disk since you started editing it. Do you want to overwrite it?";
1184
1185 if save_intent == SaveIntent::Skip {
1186 return Ok(true);
1187 }
1188
1189 let (mut has_conflict, mut is_dirty, mut can_save, can_save_as) = cx.update(|_, cx| {
1190 (
1191 item.has_conflict(cx),
1192 item.is_dirty(cx),
1193 item.can_save(cx),
1194 item.is_singleton(cx),
1195 )
1196 })?;
1197
1198 // when saving a single buffer, we ignore whether or not it's dirty.
1199 if save_intent == SaveIntent::Save {
1200 is_dirty = true;
1201 }
1202
1203 if save_intent == SaveIntent::SaveAs {
1204 is_dirty = true;
1205 has_conflict = false;
1206 can_save = false;
1207 }
1208
1209 if save_intent == SaveIntent::Overwrite {
1210 has_conflict = false;
1211 }
1212
1213 if has_conflict && can_save {
1214 let answer = pane.update(cx, |pane, cx| {
1215 pane.activate_item(item_ix, true, true, cx);
1216 cx.prompt(
1217 PromptLevel::Warning,
1218 CONFLICT_MESSAGE,
1219 &["Overwrite", "Discard", "Cancel"],
1220 )
1221 })?;
1222 match answer.await {
1223 Ok(0) => pane.update(cx, |_, cx| item.save(project, cx))?.await?,
1224 Ok(1) => pane.update(cx, |_, cx| item.reload(project, cx))?.await?,
1225 _ => return Ok(false),
1226 }
1227 } else if is_dirty && (can_save || can_save_as) {
1228 if save_intent == SaveIntent::Close {
1229 let will_autosave = cx.update(|_, cx| {
1230 matches!(
1231 WorkspaceSettings::get_global(cx).autosave,
1232 AutosaveSetting::OnFocusChange | AutosaveSetting::OnWindowChange
1233 ) && Self::can_autosave_item(&*item, cx)
1234 })?;
1235 if !will_autosave {
1236 let answer = pane.update(cx, |pane, cx| {
1237 pane.activate_item(item_ix, true, true, cx);
1238 let prompt = dirty_message_for(item.project_path(cx));
1239 cx.prompt(
1240 PromptLevel::Warning,
1241 &prompt,
1242 &["Save", "Don't Save", "Cancel"],
1243 )
1244 })?;
1245 match answer.await {
1246 Ok(0) => {}
1247 Ok(1) => return Ok(true), // Don't save this file
1248 _ => return Ok(false), // Cancel
1249 }
1250 }
1251 }
1252
1253 if can_save {
1254 pane.update(cx, |_, cx| item.save(project, cx))?.await?;
1255 } else if can_save_as {
1256 let start_abs_path = project
1257 .update(cx, |project, cx| {
1258 let worktree = project.visible_worktrees(cx).next()?;
1259 Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
1260 })?
1261 .unwrap_or_else(|| Path::new("").into());
1262
1263 let abs_path = cx.update(|_, cx| cx.prompt_for_new_path(&start_abs_path))?;
1264 if let Some(abs_path) = abs_path.await.ok().flatten() {
1265 pane.update(cx, |_, cx| item.save_as(project, abs_path, cx))?
1266 .await?;
1267 } else {
1268 return Ok(false);
1269 }
1270 }
1271 }
1272 Ok(true)
1273 }
1274
1275 fn can_autosave_item(item: &dyn ItemHandle, cx: &AppContext) -> bool {
1276 let is_deleted = item.project_entry_ids(cx).is_empty();
1277 item.is_dirty(cx) && !item.has_conflict(cx) && item.can_save(cx) && !is_deleted
1278 }
1279
1280 pub fn autosave_item(
1281 item: &dyn ItemHandle,
1282 project: Model<Project>,
1283 cx: &mut WindowContext,
1284 ) -> Task<Result<()>> {
1285 if Self::can_autosave_item(item, cx) {
1286 item.save(project, cx)
1287 } else {
1288 Task::ready(Ok(()))
1289 }
1290 }
1291
1292 pub fn focus(&mut self, cx: &mut ViewContext<Pane>) {
1293 cx.focus(&self.focus_handle);
1294 }
1295
1296 pub fn focus_active_item(&mut self, cx: &mut ViewContext<Self>) {
1297 if let Some(active_item) = self.active_item() {
1298 let focus_handle = active_item.focus_handle(cx);
1299 cx.focus(&focus_handle);
1300 }
1301 }
1302
1303 pub fn split(&mut self, direction: SplitDirection, cx: &mut ViewContext<Self>) {
1304 cx.emit(Event::Split(direction));
1305 }
1306
1307 // fn deploy_split_menu(&mut self, cx: &mut ViewContext<Self>) {
1308 // self.tab_bar_context_menu.handle.update(cx, |menu, cx| {
1309 // menu.toggle(
1310 // Default::default(),
1311 // AnchorCorner::TopRight,
1312 // vec![
1313 // ContextMenuItem::action("Split Right", SplitRight),
1314 // ContextMenuItem::action("Split Left", SplitLeft),
1315 // ContextMenuItem::action("Split Up", SplitUp),
1316 // ContextMenuItem::action("Split Down", SplitDown),
1317 // ],
1318 // cx,
1319 // );
1320 // });
1321
1322 // self.tab_bar_context_menu.kind = TabBarContextMenuKind::Split;
1323 // }
1324
1325 // fn deploy_new_menu(&mut self, cx: &mut ViewContext<Self>) {
1326 // self.tab_bar_context_menu.handle.update(cx, |menu, cx| {
1327 // menu.toggle(
1328 // Default::default(),
1329 // AnchorCorner::TopRight,
1330 // vec![
1331 // ContextMenuItem::action("New File", NewFile),
1332 // ContextMenuItem::action("New Terminal", NewCenterTerminal),
1333 // ContextMenuItem::action("New Search", NewSearch),
1334 // ],
1335 // cx,
1336 // );
1337 // });
1338
1339 // self.tab_bar_context_menu.kind = TabBarContextMenuKind::New;
1340 // }
1341
1342 // fn deploy_tab_context_menu(
1343 // &mut self,
1344 // position: Vector2F,
1345 // target_item_id: usize,
1346 // cx: &mut ViewContext<Self>,
1347 // ) {
1348 // let active_item_id = self.items[self.active_item_index].id();
1349 // let is_active_item = target_item_id == active_item_id;
1350 // let target_pane = cx.weak_handle();
1351
1352 // // The `CloseInactiveItems` action should really be called "CloseOthers" and the behaviour should be dynamically based on the tab the action is ran on. Currently, this is a weird action because you can run it on a non-active tab and it will close everything by the actual active tab
1353
1354 // self.tab_context_menu.update(cx, |menu, cx| {
1355 // menu.show(
1356 // position,
1357 // AnchorCorner::TopLeft,
1358 // if is_active_item {
1359 // vec![
1360 // ContextMenuItem::action(
1361 // "Close Active Item",
1362 // CloseActiveItem { save_intent: None },
1363 // ),
1364 // ContextMenuItem::action("Close Inactive Items", CloseInactiveItems),
1365 // ContextMenuItem::action("Close Clean Items", CloseCleanItems),
1366 // ContextMenuItem::action("Close Items To The Left", CloseItemsToTheLeft),
1367 // ContextMenuItem::action("Close Items To The Right", CloseItemsToTheRight),
1368 // ContextMenuItem::action(
1369 // "Close All Items",
1370 // CloseAllItems { save_intent: None },
1371 // ),
1372 // ]
1373 // } else {
1374 // // In the case of the user right clicking on a non-active tab, for some item-closing commands, we need to provide the id of the tab, for the others, we can reuse the existing command.
1375 // vec![
1376 // ContextMenuItem::handler("Close Inactive Item", {
1377 // let pane = target_pane.clone();
1378 // move |cx| {
1379 // if let Some(pane) = pane.upgrade(cx) {
1380 // pane.update(cx, |pane, cx| {
1381 // pane.close_item_by_id(
1382 // target_item_id,
1383 // SaveIntent::Close,
1384 // cx,
1385 // )
1386 // .detach_and_log_err(cx);
1387 // })
1388 // }
1389 // }
1390 // }),
1391 // ContextMenuItem::action("Close Inactive Items", CloseInactiveItems),
1392 // ContextMenuItem::action("Close Clean Items", CloseCleanItems),
1393 // ContextMenuItem::handler("Close Items To The Left", {
1394 // let pane = target_pane.clone();
1395 // move |cx| {
1396 // if let Some(pane) = pane.upgrade(cx) {
1397 // pane.update(cx, |pane, cx| {
1398 // pane.close_items_to_the_left_by_id(target_item_id, cx)
1399 // .detach_and_log_err(cx);
1400 // })
1401 // }
1402 // }
1403 // }),
1404 // ContextMenuItem::handler("Close Items To The Right", {
1405 // let pane = target_pane.clone();
1406 // move |cx| {
1407 // if let Some(pane) = pane.upgrade(cx) {
1408 // pane.update(cx, |pane, cx| {
1409 // pane.close_items_to_the_right_by_id(target_item_id, cx)
1410 // .detach_and_log_err(cx);
1411 // })
1412 // }
1413 // }
1414 // }),
1415 // ContextMenuItem::action(
1416 // "Close All Items",
1417 // CloseAllItems { save_intent: None },
1418 // ),
1419 // ]
1420 // },
1421 // cx,
1422 // );
1423 // });
1424 // }
1425
1426 pub fn toolbar(&self) -> &View<Toolbar> {
1427 &self.toolbar
1428 }
1429
1430 pub fn handle_deleted_project_item(
1431 &mut self,
1432 entry_id: ProjectEntryId,
1433 cx: &mut ViewContext<Pane>,
1434 ) -> Option<()> {
1435 let (item_index_to_delete, item_id) = self.items().enumerate().find_map(|(i, item)| {
1436 if item.is_singleton(cx) && item.project_entry_ids(cx).as_slice() == [entry_id] {
1437 Some((i, item.item_id()))
1438 } else {
1439 None
1440 }
1441 })?;
1442
1443 self.remove_item(item_index_to_delete, false, cx);
1444 self.nav_history.remove_item(item_id);
1445
1446 Some(())
1447 }
1448
1449 fn update_toolbar(&mut self, cx: &mut ViewContext<Self>) {
1450 let active_item = self
1451 .items
1452 .get(self.active_item_index)
1453 .map(|item| item.as_ref());
1454 self.toolbar.update(cx, |toolbar, cx| {
1455 toolbar.set_active_item(active_item, cx);
1456 });
1457 }
1458
1459 fn update_status_bar(&mut self, cx: &mut ViewContext<Self>) {
1460 let workspace = self.workspace.clone();
1461 let pane = cx.view().clone();
1462
1463 cx.window_context().defer(move |cx| {
1464 let Ok(status_bar) = workspace.update(cx, |workspace, _| workspace.status_bar.clone())
1465 else {
1466 return;
1467 };
1468
1469 status_bar.update(cx, move |status_bar, cx| {
1470 status_bar.set_active_pane(&pane, cx);
1471 });
1472 });
1473 }
1474
1475 fn render_tab(
1476 &self,
1477 ix: usize,
1478 item: &Box<dyn ItemHandle>,
1479 detail: usize,
1480 cx: &mut ViewContext<'_, Pane>,
1481 ) -> impl IntoElement {
1482 let is_active = ix == self.active_item_index;
1483
1484 let label = item.tab_content(Some(detail), is_active, cx);
1485 let close_side = &ItemSettings::get_global(cx).close_position;
1486
1487 let indicator = maybe!({
1488 let indicator_color = match (item.has_conflict(cx), item.is_dirty(cx)) {
1489 (true, _) => Color::Warning,
1490 (_, true) => Color::Accent,
1491 (false, false) => return None,
1492 };
1493
1494 Some(Indicator::dot().color(indicator_color))
1495 });
1496
1497 let item_id = item.item_id();
1498 let is_first_item = ix == 0;
1499 let is_last_item = ix == self.items.len() - 1;
1500 let position_relative_to_active_item = ix.cmp(&self.active_item_index);
1501
1502 let tab = Tab::new(ix)
1503 .position(if is_first_item {
1504 TabPosition::First
1505 } else if is_last_item {
1506 TabPosition::Last
1507 } else {
1508 TabPosition::Middle(position_relative_to_active_item)
1509 })
1510 .close_side(match close_side {
1511 ClosePosition::Left => ui::TabCloseSide::Start,
1512 ClosePosition::Right => ui::TabCloseSide::End,
1513 })
1514 .selected(is_active)
1515 .on_click(
1516 cx.listener(move |pane: &mut Self, _, cx| pane.activate_item(ix, true, true, cx)),
1517 )
1518 // TODO: This should be a click listener with the middle mouse button instead of a mouse down listener.
1519 .on_mouse_down(
1520 MouseButton::Middle,
1521 cx.listener(move |pane, _event, cx| {
1522 pane.close_item_by_id(item_id, SaveIntent::Close, cx)
1523 .detach_and_log_err(cx);
1524 }),
1525 )
1526 .on_drag(
1527 DraggedTab {
1528 pane: cx.view().clone(),
1529 detail,
1530 item_id,
1531 is_active,
1532 ix,
1533 },
1534 |tab, cx| cx.build_view(|_| tab.clone()),
1535 )
1536 .drag_over::<DraggedTab>(|tab| tab.bg(cx.theme().colors().drop_target_background))
1537 .drag_over::<ProjectEntryId>(|tab| tab.bg(cx.theme().colors().drop_target_background))
1538 .when_some(self.can_drop_predicate.clone(), |this, p| {
1539 this.can_drop(move |a, cx| p(a, cx))
1540 })
1541 .on_drop(cx.listener(move |this, dragged_tab: &DraggedTab, cx| {
1542 this.drag_split_direction = None;
1543 this.handle_tab_drop(dragged_tab, ix, cx)
1544 }))
1545 .on_drop(cx.listener(move |this, entry_id: &ProjectEntryId, cx| {
1546 this.drag_split_direction = None;
1547 this.handle_project_entry_drop(entry_id, cx)
1548 }))
1549 .when_some(item.tab_tooltip_text(cx), |tab, text| {
1550 tab.tooltip(move |cx| Tooltip::text(text.clone(), cx))
1551 })
1552 .start_slot::<Indicator>(indicator)
1553 .end_slot(
1554 IconButton::new("close tab", Icon::Close)
1555 .icon_color(Color::Muted)
1556 .size(ButtonSize::None)
1557 .icon_size(IconSize::XSmall)
1558 .on_click(cx.listener(move |pane, _, cx| {
1559 pane.close_item_by_id(item_id, SaveIntent::Close, cx)
1560 .detach_and_log_err(cx);
1561 })),
1562 )
1563 .child(label);
1564
1565 let single_entry_to_resolve = {
1566 let item_entries = self.items[ix].project_entry_ids(cx);
1567 if item_entries.len() == 1 {
1568 Some(item_entries[0])
1569 } else {
1570 None
1571 }
1572 };
1573
1574 right_click_menu(ix).trigger(tab).menu(move |cx| {
1575 ContextMenu::build(cx, |menu, _| {
1576 let menu = menu
1577 .action("Close", CloseActiveItem { save_intent: None }.boxed_clone())
1578 .action("Close Others", CloseInactiveItems.boxed_clone())
1579 .separator()
1580 .action("Close Left", CloseItemsToTheLeft.boxed_clone())
1581 .action("Close Right", CloseItemsToTheRight.boxed_clone())
1582 .separator()
1583 .action("Close Clean", CloseCleanItems.boxed_clone())
1584 .action(
1585 "Close All",
1586 CloseAllItems { save_intent: None }.boxed_clone(),
1587 );
1588
1589 if let Some(entry) = single_entry_to_resolve {
1590 menu.separator().action(
1591 "Reveal In Project Panel",
1592 RevealInProjectPanel {
1593 entry_id: entry.to_proto(),
1594 }
1595 .boxed_clone(),
1596 )
1597 } else {
1598 menu
1599 }
1600 })
1601 })
1602 }
1603
1604 fn render_tab_bar(&mut self, cx: &mut ViewContext<'_, Pane>) -> impl IntoElement {
1605 TabBar::new("tab_bar")
1606 .track_scroll(self.tab_bar_scroll_handle.clone())
1607 .start_child(
1608 IconButton::new("navigate_backward", Icon::ArrowLeft)
1609 .icon_size(IconSize::Small)
1610 .on_click({
1611 let view = cx.view().clone();
1612 move |_, cx| view.update(cx, Self::navigate_backward)
1613 })
1614 .disabled(!self.can_navigate_backward())
1615 .tooltip(|cx| Tooltip::for_action("Go Back", &GoBack, cx)),
1616 )
1617 .start_child(
1618 IconButton::new("navigate_forward", Icon::ArrowRight)
1619 .icon_size(IconSize::Small)
1620 .on_click({
1621 let view = cx.view().clone();
1622 move |_, cx| view.update(cx, Self::navigate_backward)
1623 })
1624 .disabled(!self.can_navigate_forward())
1625 .tooltip(|cx| Tooltip::for_action("Go Forward", &GoForward, cx)),
1626 )
1627 .end_child(
1628 div()
1629 .child(
1630 IconButton::new("plus", Icon::Plus)
1631 .icon_size(IconSize::Small)
1632 .on_click(cx.listener(|this, _, cx| {
1633 let menu = ContextMenu::build(cx, |menu, _| {
1634 menu.action("New File", NewFile.boxed_clone())
1635 .action("New Terminal", NewCenterTerminal.boxed_clone())
1636 .action("New Search", NewSearch.boxed_clone())
1637 });
1638 cx.subscribe(&menu, |this, _, _: &DismissEvent, cx| {
1639 this.focus(cx);
1640 this.new_item_menu = None;
1641 })
1642 .detach();
1643 this.new_item_menu = Some(menu);
1644 }))
1645 .tooltip(|cx| Tooltip::text("New...", cx)),
1646 )
1647 .when_some(self.new_item_menu.as_ref(), |el, new_item_menu| {
1648 el.child(Self::render_menu_overlay(new_item_menu))
1649 }),
1650 )
1651 .end_child(
1652 div()
1653 .child(
1654 IconButton::new("split", Icon::Split)
1655 .icon_size(IconSize::Small)
1656 .on_click(cx.listener(|this, _, cx| {
1657 let menu = ContextMenu::build(cx, |menu, _| {
1658 menu.action("Split Right", SplitRight.boxed_clone())
1659 .action("Split Left", SplitLeft.boxed_clone())
1660 .action("Split Up", SplitUp.boxed_clone())
1661 .action("Split Down", SplitDown.boxed_clone())
1662 });
1663 cx.subscribe(&menu, |this, _, _: &DismissEvent, cx| {
1664 this.focus(cx);
1665 this.split_item_menu = None;
1666 })
1667 .detach();
1668 this.split_item_menu = Some(menu);
1669 }))
1670 .tooltip(|cx| Tooltip::text("Split Pane", cx)),
1671 )
1672 .when_some(self.split_item_menu.as_ref(), |el, split_item_menu| {
1673 el.child(Self::render_menu_overlay(split_item_menu))
1674 }),
1675 )
1676 .children(
1677 self.items
1678 .iter()
1679 .enumerate()
1680 .zip(self.tab_details(cx))
1681 .map(|((ix, item), detail)| self.render_tab(ix, item, detail, cx)),
1682 )
1683 .child(
1684 div()
1685 .min_w_6()
1686 // HACK: This empty child is currently necessary to force the drop traget to appear
1687 // despite us setting a min width above.
1688 .child("")
1689 .h_full()
1690 .flex_grow()
1691 .drag_over::<DraggedTab>(|bar| {
1692 bar.bg(cx.theme().colors().drop_target_background)
1693 })
1694 .drag_over::<ProjectEntryId>(|bar| {
1695 bar.bg(cx.theme().colors().drop_target_background)
1696 })
1697 .on_drop(cx.listener(move |this, dragged_tab: &DraggedTab, cx| {
1698 this.drag_split_direction = None;
1699 this.handle_tab_drop(dragged_tab, this.items.len(), cx)
1700 }))
1701 .on_drop(cx.listener(move |this, entry_id: &ProjectEntryId, cx| {
1702 this.drag_split_direction = None;
1703 this.handle_project_entry_drop(entry_id, cx)
1704 })),
1705 )
1706 }
1707
1708 fn render_menu_overlay(menu: &View<ContextMenu>) -> Div {
1709 div()
1710 .absolute()
1711 .z_index(1)
1712 .bottom_0()
1713 .right_0()
1714 .size_0()
1715 .child(overlay().anchor(AnchorCorner::TopRight).child(menu.clone()))
1716 }
1717
1718 fn tab_details(&self, cx: &AppContext) -> Vec<usize> {
1719 let mut tab_details = self.items.iter().map(|_| 0).collect::<Vec<_>>();
1720
1721 let mut tab_descriptions = HashMap::default();
1722 let mut done = false;
1723 while !done {
1724 done = true;
1725
1726 // Store item indices by their tab description.
1727 for (ix, (item, detail)) in self.items.iter().zip(&tab_details).enumerate() {
1728 if let Some(description) = item.tab_description(*detail, cx) {
1729 if *detail == 0
1730 || Some(&description) != item.tab_description(detail - 1, cx).as_ref()
1731 {
1732 tab_descriptions
1733 .entry(description)
1734 .or_insert(Vec::new())
1735 .push(ix);
1736 }
1737 }
1738 }
1739
1740 // If two or more items have the same tab description, increase eir level
1741 // of detail and try again.
1742 for (_, item_ixs) in tab_descriptions.drain() {
1743 if item_ixs.len() > 1 {
1744 done = false;
1745 for ix in item_ixs {
1746 tab_details[ix] += 1;
1747 }
1748 }
1749 }
1750 }
1751
1752 tab_details
1753 }
1754
1755 pub fn set_zoomed(&mut self, zoomed: bool, cx: &mut ViewContext<Self>) {
1756 self.zoomed = zoomed;
1757 cx.notify();
1758 }
1759
1760 pub fn is_zoomed(&self) -> bool {
1761 self.zoomed
1762 }
1763
1764 fn handle_drag_move<T>(&mut self, event: &DragMoveEvent<T>, cx: &mut ViewContext<Self>) {
1765 if !self.can_split {
1766 return;
1767 }
1768
1769 let edge_width = cx.rem_size() * 8;
1770 let cursor = event.event.position;
1771 let direction = if cursor.x < event.bounds.left() + edge_width {
1772 Some(SplitDirection::Left)
1773 } else if cursor.x > event.bounds.right() - edge_width {
1774 Some(SplitDirection::Right)
1775 } else if cursor.y < event.bounds.top() + edge_width {
1776 Some(SplitDirection::Up)
1777 } else if cursor.y > event.bounds.bottom() - edge_width {
1778 Some(SplitDirection::Down)
1779 } else {
1780 None
1781 };
1782
1783 if direction != self.drag_split_direction {
1784 self.drag_split_direction = direction;
1785 }
1786 }
1787
1788 fn handle_tab_drop(
1789 &mut self,
1790 dragged_tab: &DraggedTab,
1791 ix: usize,
1792 cx: &mut ViewContext<'_, Pane>,
1793 ) {
1794 let mut to_pane = cx.view().clone();
1795 let split_direction = self.drag_split_direction;
1796 let item_id = dragged_tab.item_id;
1797 let from_pane = dragged_tab.pane.clone();
1798 self.workspace
1799 .update(cx, |_, cx| {
1800 cx.defer(move |workspace, cx| {
1801 if let Some(split_direction) = split_direction {
1802 to_pane = workspace.split_pane(to_pane, split_direction, cx);
1803 }
1804 workspace.move_item(from_pane, to_pane, item_id, ix, cx);
1805 });
1806 })
1807 .log_err();
1808 }
1809
1810 fn handle_project_entry_drop(
1811 &mut self,
1812 project_entry_id: &ProjectEntryId,
1813 cx: &mut ViewContext<'_, Pane>,
1814 ) {
1815 let mut to_pane = cx.view().clone();
1816 let split_direction = self.drag_split_direction;
1817 let project_entry_id = *project_entry_id;
1818 self.workspace
1819 .update(cx, |_, cx| {
1820 cx.defer(move |workspace, cx| {
1821 if let Some(path) = workspace
1822 .project()
1823 .read(cx)
1824 .path_for_entry(project_entry_id, cx)
1825 {
1826 if let Some(split_direction) = split_direction {
1827 to_pane = workspace.split_pane(to_pane, split_direction, cx);
1828 }
1829 workspace
1830 .open_path(path, Some(to_pane.downgrade()), true, cx)
1831 .detach_and_log_err(cx);
1832 }
1833 });
1834 })
1835 .log_err();
1836 }
1837}
1838
1839impl FocusableView for Pane {
1840 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
1841 self.focus_handle.clone()
1842 }
1843}
1844
1845impl Render for Pane {
1846 type Element = Focusable<Div>;
1847
1848 fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
1849 v_stack()
1850 .key_context("Pane")
1851 .track_focus(&self.focus_handle)
1852 .size_full()
1853 .flex_none()
1854 .overflow_hidden()
1855 .on_action(cx.listener(|pane, _: &SplitLeft, cx| pane.split(SplitDirection::Left, cx)))
1856 .on_action(cx.listener(|pane, _: &SplitUp, cx| pane.split(SplitDirection::Up, cx)))
1857 .on_action(
1858 cx.listener(|pane, _: &SplitRight, cx| pane.split(SplitDirection::Right, cx)),
1859 )
1860 .on_action(cx.listener(|pane, _: &SplitDown, cx| pane.split(SplitDirection::Down, cx)))
1861 .on_action(cx.listener(|pane, _: &GoBack, cx| pane.navigate_backward(cx)))
1862 .on_action(cx.listener(|pane, _: &GoForward, cx| pane.navigate_forward(cx)))
1863 .on_action(cx.listener(Pane::toggle_zoom))
1864 .on_action(cx.listener(|pane: &mut Pane, action: &ActivateItem, cx| {
1865 pane.activate_item(action.0, true, true, cx);
1866 }))
1867 .on_action(cx.listener(|pane: &mut Pane, _: &ActivateLastItem, cx| {
1868 pane.activate_item(pane.items.len() - 1, true, true, cx);
1869 }))
1870 .on_action(cx.listener(|pane: &mut Pane, _: &ActivatePrevItem, cx| {
1871 pane.activate_prev_item(true, cx);
1872 }))
1873 .on_action(cx.listener(|pane: &mut Pane, _: &ActivateNextItem, cx| {
1874 pane.activate_next_item(true, cx);
1875 }))
1876 .on_action(
1877 cx.listener(|pane: &mut Self, action: &CloseActiveItem, cx| {
1878 pane.close_active_item(action, cx)
1879 .map(|task| task.detach_and_log_err(cx));
1880 }),
1881 )
1882 .on_action(
1883 cx.listener(|pane: &mut Self, action: &CloseInactiveItems, cx| {
1884 pane.close_inactive_items(action, cx)
1885 .map(|task| task.detach_and_log_err(cx));
1886 }),
1887 )
1888 .on_action(
1889 cx.listener(|pane: &mut Self, action: &CloseCleanItems, cx| {
1890 pane.close_clean_items(action, cx)
1891 .map(|task| task.detach_and_log_err(cx));
1892 }),
1893 )
1894 .on_action(
1895 cx.listener(|pane: &mut Self, action: &CloseItemsToTheLeft, cx| {
1896 pane.close_items_to_the_left(action, cx)
1897 .map(|task| task.detach_and_log_err(cx));
1898 }),
1899 )
1900 .on_action(
1901 cx.listener(|pane: &mut Self, action: &CloseItemsToTheRight, cx| {
1902 pane.close_items_to_the_right(action, cx)
1903 .map(|task| task.detach_and_log_err(cx));
1904 }),
1905 )
1906 .on_action(cx.listener(|pane: &mut Self, action: &CloseAllItems, cx| {
1907 pane.close_all_items(action, cx)
1908 .map(|task| task.detach_and_log_err(cx));
1909 }))
1910 .on_action(
1911 cx.listener(|pane: &mut Self, action: &CloseActiveItem, cx| {
1912 pane.close_active_item(action, cx)
1913 .map(|task| task.detach_and_log_err(cx));
1914 }),
1915 )
1916 .on_action(
1917 cx.listener(|pane: &mut Self, action: &RevealInProjectPanel, cx| {
1918 pane.project.update(cx, |_, cx| {
1919 cx.emit(project::Event::RevealInProjectPanel(
1920 ProjectEntryId::from_proto(action.entry_id),
1921 ))
1922 })
1923 }),
1924 )
1925 .child(self.render_tab_bar(cx))
1926 .child(
1927 // main content
1928 div()
1929 .flex_1()
1930 .relative()
1931 .group("")
1932 .on_drag_move::<DraggedTab>(cx.listener(Self::handle_drag_move))
1933 .on_drag_move::<ProjectEntryId>(cx.listener(Self::handle_drag_move))
1934 .map(|div| {
1935 if let Some(item) = self.active_item() {
1936 div.v_flex()
1937 .child(self.toolbar.clone())
1938 .child(item.to_any())
1939 } else {
1940 div.h_flex().size_full().justify_center().child(
1941 Label::new("Open a file or project to get started.")
1942 .color(Color::Muted),
1943 )
1944 }
1945 })
1946 .child(
1947 // drag target
1948 div()
1949 .z_index(1)
1950 .invisible()
1951 .absolute()
1952 .bg(theme::color_alpha(
1953 cx.theme().colors().drop_target_background,
1954 0.75,
1955 ))
1956 .group_drag_over::<DraggedTab>("", |style| style.visible())
1957 .group_drag_over::<ProjectEntryId>("", |style| style.visible())
1958 .when_some(self.can_drop_predicate.clone(), |this, p| {
1959 this.can_drop(move |a, cx| p(a, cx))
1960 })
1961 .on_drop(cx.listener(move |this, dragged_tab, cx| {
1962 this.handle_tab_drop(dragged_tab, this.active_item_index(), cx)
1963 }))
1964 .on_drop(cx.listener(move |this, entry_id, cx| {
1965 this.handle_project_entry_drop(entry_id, cx)
1966 }))
1967 .map(|div| match self.drag_split_direction {
1968 None => div.top_0().left_0().right_0().bottom_0(),
1969 Some(SplitDirection::Up) => div.top_0().left_0().right_0().h_32(),
1970 Some(SplitDirection::Down) => {
1971 div.left_0().bottom_0().right_0().h_32()
1972 }
1973 Some(SplitDirection::Left) => {
1974 div.top_0().left_0().bottom_0().w_32()
1975 }
1976 Some(SplitDirection::Right) => {
1977 div.top_0().bottom_0().right_0().w_32()
1978 }
1979 }),
1980 ),
1981 )
1982 .on_mouse_down(
1983 MouseButton::Navigate(NavigationDirection::Back),
1984 cx.listener(|pane, _, cx| {
1985 if let Some(workspace) = pane.workspace.upgrade() {
1986 let pane = cx.view().downgrade();
1987 cx.window_context().defer(move |cx| {
1988 workspace.update(cx, |workspace, cx| {
1989 workspace.go_back(pane, cx).detach_and_log_err(cx)
1990 })
1991 })
1992 }
1993 }),
1994 )
1995 .on_mouse_down(
1996 MouseButton::Navigate(NavigationDirection::Forward),
1997 cx.listener(|pane, _, cx| {
1998 if let Some(workspace) = pane.workspace.upgrade() {
1999 let pane = cx.view().downgrade();
2000 cx.window_context().defer(move |cx| {
2001 workspace.update(cx, |workspace, cx| {
2002 workspace.go_forward(pane, cx).detach_and_log_err(cx)
2003 })
2004 })
2005 }
2006 }),
2007 )
2008 }
2009}
2010
2011impl ItemNavHistory {
2012 pub fn push<D: 'static + Send + Any>(&mut self, data: Option<D>, cx: &mut WindowContext) {
2013 self.history.push(data, self.item.clone(), cx);
2014 }
2015
2016 pub fn pop_backward(&mut self, cx: &mut WindowContext) -> Option<NavigationEntry> {
2017 self.history.pop(NavigationMode::GoingBack, cx)
2018 }
2019
2020 pub fn pop_forward(&mut self, cx: &mut WindowContext) -> Option<NavigationEntry> {
2021 self.history.pop(NavigationMode::GoingForward, cx)
2022 }
2023}
2024
2025impl NavHistory {
2026 pub fn for_each_entry(
2027 &self,
2028 cx: &AppContext,
2029 mut f: impl FnMut(&NavigationEntry, (ProjectPath, Option<PathBuf>)),
2030 ) {
2031 let borrowed_history = self.0.lock();
2032 borrowed_history
2033 .forward_stack
2034 .iter()
2035 .chain(borrowed_history.backward_stack.iter())
2036 .chain(borrowed_history.closed_stack.iter())
2037 .for_each(|entry| {
2038 if let Some(project_and_abs_path) =
2039 borrowed_history.paths_by_item.get(&entry.item.id())
2040 {
2041 f(entry, project_and_abs_path.clone());
2042 } else if let Some(item) = entry.item.upgrade() {
2043 if let Some(path) = item.project_path(cx) {
2044 f(entry, (path, None));
2045 }
2046 }
2047 })
2048 }
2049
2050 pub fn set_mode(&mut self, mode: NavigationMode) {
2051 self.0.lock().mode = mode;
2052 }
2053
2054 pub fn mode(&self) -> NavigationMode {
2055 self.0.lock().mode
2056 }
2057
2058 pub fn disable(&mut self) {
2059 self.0.lock().mode = NavigationMode::Disabled;
2060 }
2061
2062 pub fn enable(&mut self) {
2063 self.0.lock().mode = NavigationMode::Normal;
2064 }
2065
2066 pub fn pop(&mut self, mode: NavigationMode, cx: &mut WindowContext) -> Option<NavigationEntry> {
2067 let mut state = self.0.lock();
2068 let entry = match mode {
2069 NavigationMode::Normal | NavigationMode::Disabled | NavigationMode::ClosingItem => {
2070 return None
2071 }
2072 NavigationMode::GoingBack => &mut state.backward_stack,
2073 NavigationMode::GoingForward => &mut state.forward_stack,
2074 NavigationMode::ReopeningClosedItem => &mut state.closed_stack,
2075 }
2076 .pop_back();
2077 if entry.is_some() {
2078 state.did_update(cx);
2079 }
2080 entry
2081 }
2082
2083 pub fn push<D: 'static + Send + Any>(
2084 &mut self,
2085 data: Option<D>,
2086 item: Arc<dyn WeakItemHandle>,
2087 cx: &mut WindowContext,
2088 ) {
2089 let state = &mut *self.0.lock();
2090 match state.mode {
2091 NavigationMode::Disabled => {}
2092 NavigationMode::Normal | NavigationMode::ReopeningClosedItem => {
2093 if state.backward_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2094 state.backward_stack.pop_front();
2095 }
2096 state.backward_stack.push_back(NavigationEntry {
2097 item,
2098 data: data.map(|data| Box::new(data) as Box<dyn Any + Send>),
2099 timestamp: state.next_timestamp.fetch_add(1, Ordering::SeqCst),
2100 });
2101 state.forward_stack.clear();
2102 }
2103 NavigationMode::GoingBack => {
2104 if state.forward_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2105 state.forward_stack.pop_front();
2106 }
2107 state.forward_stack.push_back(NavigationEntry {
2108 item,
2109 data: data.map(|data| Box::new(data) as Box<dyn Any + Send>),
2110 timestamp: state.next_timestamp.fetch_add(1, Ordering::SeqCst),
2111 });
2112 }
2113 NavigationMode::GoingForward => {
2114 if state.backward_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2115 state.backward_stack.pop_front();
2116 }
2117 state.backward_stack.push_back(NavigationEntry {
2118 item,
2119 data: data.map(|data| Box::new(data) as Box<dyn Any + Send>),
2120 timestamp: state.next_timestamp.fetch_add(1, Ordering::SeqCst),
2121 });
2122 }
2123 NavigationMode::ClosingItem => {
2124 if state.closed_stack.len() >= MAX_NAVIGATION_HISTORY_LEN {
2125 state.closed_stack.pop_front();
2126 }
2127 state.closed_stack.push_back(NavigationEntry {
2128 item,
2129 data: data.map(|data| Box::new(data) as Box<dyn Any + Send>),
2130 timestamp: state.next_timestamp.fetch_add(1, Ordering::SeqCst),
2131 });
2132 }
2133 }
2134 state.did_update(cx);
2135 }
2136
2137 pub fn remove_item(&mut self, item_id: EntityId) {
2138 let mut state = self.0.lock();
2139 state.paths_by_item.remove(&item_id);
2140 state
2141 .backward_stack
2142 .retain(|entry| entry.item.id() != item_id);
2143 state
2144 .forward_stack
2145 .retain(|entry| entry.item.id() != item_id);
2146 state
2147 .closed_stack
2148 .retain(|entry| entry.item.id() != item_id);
2149 }
2150
2151 pub fn path_for_item(&self, item_id: EntityId) -> Option<(ProjectPath, Option<PathBuf>)> {
2152 self.0.lock().paths_by_item.get(&item_id).cloned()
2153 }
2154}
2155
2156impl NavHistoryState {
2157 pub fn did_update(&self, cx: &mut WindowContext) {
2158 if let Some(pane) = self.pane.upgrade() {
2159 cx.defer(move |cx| {
2160 pane.update(cx, |pane, cx| pane.history_updated(cx));
2161 });
2162 }
2163 }
2164}
2165
2166fn dirty_message_for(buffer_path: Option<ProjectPath>) -> String {
2167 let path = buffer_path
2168 .as_ref()
2169 .and_then(|p| p.path.to_str())
2170 .unwrap_or(&"This buffer");
2171 let path = truncate_and_remove_front(path, 80);
2172 format!("{path} contains unsaved edits. Do you want to save it?")
2173}
2174
2175#[cfg(test)]
2176mod tests {
2177 use super::*;
2178 use crate::item::test::{TestItem, TestProjectItem};
2179 use gpui::{TestAppContext, VisualTestContext};
2180 use project::FakeFs;
2181 use settings::SettingsStore;
2182 use theme::LoadThemes;
2183
2184 #[gpui::test]
2185 async fn test_remove_active_empty(cx: &mut TestAppContext) {
2186 init_test(cx);
2187 let fs = FakeFs::new(cx.executor());
2188
2189 let project = Project::test(fs, None, cx).await;
2190 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2191 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2192
2193 pane.update(cx, |pane, cx| {
2194 assert!(pane
2195 .close_active_item(&CloseActiveItem { save_intent: None }, cx)
2196 .is_none())
2197 });
2198 }
2199
2200 #[gpui::test]
2201 async fn test_add_item_with_new_item(cx: &mut TestAppContext) {
2202 init_test(cx);
2203 let fs = FakeFs::new(cx.executor());
2204
2205 let project = Project::test(fs, None, cx).await;
2206 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2207 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2208
2209 // 1. Add with a destination index
2210 // a. Add before the active item
2211 set_labeled_items(&pane, ["A", "B*", "C"], cx);
2212 pane.update(cx, |pane, cx| {
2213 pane.add_item(
2214 Box::new(cx.build_view(|cx| TestItem::new(cx).with_label("D"))),
2215 false,
2216 false,
2217 Some(0),
2218 cx,
2219 );
2220 });
2221 assert_item_labels(&pane, ["D*", "A", "B", "C"], cx);
2222
2223 // b. Add after the active item
2224 set_labeled_items(&pane, ["A", "B*", "C"], cx);
2225 pane.update(cx, |pane, cx| {
2226 pane.add_item(
2227 Box::new(cx.build_view(|cx| TestItem::new(cx).with_label("D"))),
2228 false,
2229 false,
2230 Some(2),
2231 cx,
2232 );
2233 });
2234 assert_item_labels(&pane, ["A", "B", "D*", "C"], cx);
2235
2236 // c. Add at the end of the item list (including off the length)
2237 set_labeled_items(&pane, ["A", "B*", "C"], cx);
2238 pane.update(cx, |pane, cx| {
2239 pane.add_item(
2240 Box::new(cx.build_view(|cx| TestItem::new(cx).with_label("D"))),
2241 false,
2242 false,
2243 Some(5),
2244 cx,
2245 );
2246 });
2247 assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2248
2249 // 2. Add without a destination index
2250 // a. Add with active item at the start of the item list
2251 set_labeled_items(&pane, ["A*", "B", "C"], cx);
2252 pane.update(cx, |pane, cx| {
2253 pane.add_item(
2254 Box::new(cx.build_view(|cx| TestItem::new(cx).with_label("D"))),
2255 false,
2256 false,
2257 None,
2258 cx,
2259 );
2260 });
2261 set_labeled_items(&pane, ["A", "D*", "B", "C"], cx);
2262
2263 // b. Add with active item at the end of the item list
2264 set_labeled_items(&pane, ["A", "B", "C*"], cx);
2265 pane.update(cx, |pane, cx| {
2266 pane.add_item(
2267 Box::new(cx.build_view(|cx| TestItem::new(cx).with_label("D"))),
2268 false,
2269 false,
2270 None,
2271 cx,
2272 );
2273 });
2274 assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2275 }
2276
2277 #[gpui::test]
2278 async fn test_add_item_with_existing_item(cx: &mut TestAppContext) {
2279 init_test(cx);
2280 let fs = FakeFs::new(cx.executor());
2281
2282 let project = Project::test(fs, None, cx).await;
2283 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2284 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2285
2286 // 1. Add with a destination index
2287 // 1a. Add before the active item
2288 let [_, _, _, d] = set_labeled_items(&pane, ["A", "B*", "C", "D"], cx);
2289 pane.update(cx, |pane, cx| {
2290 pane.add_item(d, false, false, Some(0), cx);
2291 });
2292 assert_item_labels(&pane, ["D*", "A", "B", "C"], cx);
2293
2294 // 1b. Add after the active item
2295 let [_, _, _, d] = set_labeled_items(&pane, ["A", "B*", "C", "D"], cx);
2296 pane.update(cx, |pane, cx| {
2297 pane.add_item(d, false, false, Some(2), cx);
2298 });
2299 assert_item_labels(&pane, ["A", "B", "D*", "C"], cx);
2300
2301 // 1c. Add at the end of the item list (including off the length)
2302 let [a, _, _, _] = set_labeled_items(&pane, ["A", "B*", "C", "D"], cx);
2303 pane.update(cx, |pane, cx| {
2304 pane.add_item(a, false, false, Some(5), cx);
2305 });
2306 assert_item_labels(&pane, ["B", "C", "D", "A*"], cx);
2307
2308 // 1d. Add same item to active index
2309 let [_, b, _] = set_labeled_items(&pane, ["A", "B*", "C"], cx);
2310 pane.update(cx, |pane, cx| {
2311 pane.add_item(b, false, false, Some(1), cx);
2312 });
2313 assert_item_labels(&pane, ["A", "B*", "C"], cx);
2314
2315 // 1e. Add item to index after same item in last position
2316 let [_, _, c] = set_labeled_items(&pane, ["A", "B*", "C"], cx);
2317 pane.update(cx, |pane, cx| {
2318 pane.add_item(c, false, false, Some(2), cx);
2319 });
2320 assert_item_labels(&pane, ["A", "B", "C*"], cx);
2321
2322 // 2. Add without a destination index
2323 // 2a. Add with active item at the start of the item list
2324 let [_, _, _, d] = set_labeled_items(&pane, ["A*", "B", "C", "D"], cx);
2325 pane.update(cx, |pane, cx| {
2326 pane.add_item(d, false, false, None, cx);
2327 });
2328 assert_item_labels(&pane, ["A", "D*", "B", "C"], cx);
2329
2330 // 2b. Add with active item at the end of the item list
2331 let [a, _, _, _] = set_labeled_items(&pane, ["A", "B", "C", "D*"], cx);
2332 pane.update(cx, |pane, cx| {
2333 pane.add_item(a, false, false, None, cx);
2334 });
2335 assert_item_labels(&pane, ["B", "C", "D", "A*"], cx);
2336
2337 // 2c. Add active item to active item at end of list
2338 let [_, _, c] = set_labeled_items(&pane, ["A", "B", "C*"], cx);
2339 pane.update(cx, |pane, cx| {
2340 pane.add_item(c, false, false, None, cx);
2341 });
2342 assert_item_labels(&pane, ["A", "B", "C*"], cx);
2343
2344 // 2d. Add active item to active item at start of list
2345 let [a, _, _] = set_labeled_items(&pane, ["A*", "B", "C"], cx);
2346 pane.update(cx, |pane, cx| {
2347 pane.add_item(a, false, false, None, cx);
2348 });
2349 assert_item_labels(&pane, ["A*", "B", "C"], cx);
2350 }
2351
2352 #[gpui::test]
2353 async fn test_add_item_with_same_project_entries(cx: &mut TestAppContext) {
2354 init_test(cx);
2355 let fs = FakeFs::new(cx.executor());
2356
2357 let project = Project::test(fs, None, cx).await;
2358 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2359 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2360
2361 // singleton view
2362 pane.update(cx, |pane, cx| {
2363 pane.add_item(
2364 Box::new(cx.build_view(|cx| {
2365 TestItem::new(cx)
2366 .with_singleton(true)
2367 .with_label("buffer 1")
2368 .with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
2369 })),
2370 false,
2371 false,
2372 None,
2373 cx,
2374 );
2375 });
2376 assert_item_labels(&pane, ["buffer 1*"], cx);
2377
2378 // new singleton view with the same project entry
2379 pane.update(cx, |pane, cx| {
2380 pane.add_item(
2381 Box::new(cx.build_view(|cx| {
2382 TestItem::new(cx)
2383 .with_singleton(true)
2384 .with_label("buffer 1")
2385 .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
2386 })),
2387 false,
2388 false,
2389 None,
2390 cx,
2391 );
2392 });
2393 assert_item_labels(&pane, ["buffer 1*"], cx);
2394
2395 // new singleton view with different project entry
2396 pane.update(cx, |pane, cx| {
2397 pane.add_item(
2398 Box::new(cx.build_view(|cx| {
2399 TestItem::new(cx)
2400 .with_singleton(true)
2401 .with_label("buffer 2")
2402 .with_project_items(&[TestProjectItem::new(2, "2.txt", cx)])
2403 })),
2404 false,
2405 false,
2406 None,
2407 cx,
2408 );
2409 });
2410 assert_item_labels(&pane, ["buffer 1", "buffer 2*"], cx);
2411
2412 // new multibuffer view with the same project entry
2413 pane.update(cx, |pane, cx| {
2414 pane.add_item(
2415 Box::new(cx.build_view(|cx| {
2416 TestItem::new(cx)
2417 .with_singleton(false)
2418 .with_label("multibuffer 1")
2419 .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
2420 })),
2421 false,
2422 false,
2423 None,
2424 cx,
2425 );
2426 });
2427 assert_item_labels(&pane, ["buffer 1", "buffer 2", "multibuffer 1*"], cx);
2428
2429 // another multibuffer view with the same project entry
2430 pane.update(cx, |pane, cx| {
2431 pane.add_item(
2432 Box::new(cx.build_view(|cx| {
2433 TestItem::new(cx)
2434 .with_singleton(false)
2435 .with_label("multibuffer 1b")
2436 .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
2437 })),
2438 false,
2439 false,
2440 None,
2441 cx,
2442 );
2443 });
2444 assert_item_labels(
2445 &pane,
2446 ["buffer 1", "buffer 2", "multibuffer 1", "multibuffer 1b*"],
2447 cx,
2448 );
2449 }
2450
2451 #[gpui::test]
2452 async fn test_remove_item_ordering(cx: &mut TestAppContext) {
2453 init_test(cx);
2454 let fs = FakeFs::new(cx.executor());
2455
2456 let project = Project::test(fs, None, cx).await;
2457 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2458 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2459
2460 add_labeled_item(&pane, "A", false, cx);
2461 add_labeled_item(&pane, "B", false, cx);
2462 add_labeled_item(&pane, "C", false, cx);
2463 add_labeled_item(&pane, "D", false, cx);
2464 assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2465
2466 pane.update(cx, |pane, cx| pane.activate_item(1, false, false, cx));
2467 add_labeled_item(&pane, "1", false, cx);
2468 assert_item_labels(&pane, ["A", "B", "1*", "C", "D"], cx);
2469
2470 pane.update(cx, |pane, cx| {
2471 pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2472 })
2473 .unwrap()
2474 .await
2475 .unwrap();
2476 assert_item_labels(&pane, ["A", "B*", "C", "D"], cx);
2477
2478 pane.update(cx, |pane, cx| pane.activate_item(3, false, false, cx));
2479 assert_item_labels(&pane, ["A", "B", "C", "D*"], cx);
2480
2481 pane.update(cx, |pane, cx| {
2482 pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2483 })
2484 .unwrap()
2485 .await
2486 .unwrap();
2487 assert_item_labels(&pane, ["A", "B*", "C"], cx);
2488
2489 pane.update(cx, |pane, cx| {
2490 pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2491 })
2492 .unwrap()
2493 .await
2494 .unwrap();
2495 assert_item_labels(&pane, ["A", "C*"], cx);
2496
2497 pane.update(cx, |pane, cx| {
2498 pane.close_active_item(&CloseActiveItem { save_intent: None }, cx)
2499 })
2500 .unwrap()
2501 .await
2502 .unwrap();
2503 assert_item_labels(&pane, ["A*"], cx);
2504 }
2505
2506 #[gpui::test]
2507 async fn test_close_inactive_items(cx: &mut TestAppContext) {
2508 init_test(cx);
2509 let fs = FakeFs::new(cx.executor());
2510
2511 let project = Project::test(fs, None, cx).await;
2512 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2513 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2514
2515 set_labeled_items(&pane, ["A", "B", "C*", "D", "E"], cx);
2516
2517 pane.update(cx, |pane, cx| {
2518 pane.close_inactive_items(&CloseInactiveItems, cx)
2519 })
2520 .unwrap()
2521 .await
2522 .unwrap();
2523 assert_item_labels(&pane, ["C*"], cx);
2524 }
2525
2526 #[gpui::test]
2527 async fn test_close_clean_items(cx: &mut TestAppContext) {
2528 init_test(cx);
2529 let fs = FakeFs::new(cx.executor());
2530
2531 let project = Project::test(fs, None, cx).await;
2532 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2533 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2534
2535 add_labeled_item(&pane, "A", true, cx);
2536 add_labeled_item(&pane, "B", false, cx);
2537 add_labeled_item(&pane, "C", true, cx);
2538 add_labeled_item(&pane, "D", false, cx);
2539 add_labeled_item(&pane, "E", false, cx);
2540 assert_item_labels(&pane, ["A^", "B", "C^", "D", "E*"], cx);
2541
2542 pane.update(cx, |pane, cx| pane.close_clean_items(&CloseCleanItems, cx))
2543 .unwrap()
2544 .await
2545 .unwrap();
2546 assert_item_labels(&pane, ["A^", "C*^"], cx);
2547 }
2548
2549 #[gpui::test]
2550 async fn test_close_items_to_the_left(cx: &mut TestAppContext) {
2551 init_test(cx);
2552 let fs = FakeFs::new(cx.executor());
2553
2554 let project = Project::test(fs, None, cx).await;
2555 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2556 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2557
2558 set_labeled_items(&pane, ["A", "B", "C*", "D", "E"], cx);
2559
2560 pane.update(cx, |pane, cx| {
2561 pane.close_items_to_the_left(&CloseItemsToTheLeft, cx)
2562 })
2563 .unwrap()
2564 .await
2565 .unwrap();
2566 assert_item_labels(&pane, ["C*", "D", "E"], cx);
2567 }
2568
2569 #[gpui::test]
2570 async fn test_close_items_to_the_right(cx: &mut TestAppContext) {
2571 init_test(cx);
2572 let fs = FakeFs::new(cx.executor());
2573
2574 let project = Project::test(fs, None, cx).await;
2575 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2576 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2577
2578 set_labeled_items(&pane, ["A", "B", "C*", "D", "E"], cx);
2579
2580 pane.update(cx, |pane, cx| {
2581 pane.close_items_to_the_right(&CloseItemsToTheRight, cx)
2582 })
2583 .unwrap()
2584 .await
2585 .unwrap();
2586 assert_item_labels(&pane, ["A", "B", "C*"], cx);
2587 }
2588
2589 #[gpui::test]
2590 async fn test_close_all_items(cx: &mut TestAppContext) {
2591 init_test(cx);
2592 let fs = FakeFs::new(cx.executor());
2593
2594 let project = Project::test(fs, None, cx).await;
2595 let (workspace, cx) = cx.add_window_view(|cx| Workspace::test_new(project.clone(), cx));
2596 let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
2597
2598 add_labeled_item(&pane, "A", false, cx);
2599 add_labeled_item(&pane, "B", false, cx);
2600 add_labeled_item(&pane, "C", false, cx);
2601 assert_item_labels(&pane, ["A", "B", "C*"], cx);
2602
2603 pane.update(cx, |pane, cx| {
2604 pane.close_all_items(&CloseAllItems { save_intent: None }, cx)
2605 })
2606 .unwrap()
2607 .await
2608 .unwrap();
2609 assert_item_labels(&pane, [], cx);
2610
2611 add_labeled_item(&pane, "A", true, cx);
2612 add_labeled_item(&pane, "B", true, cx);
2613 add_labeled_item(&pane, "C", true, cx);
2614 assert_item_labels(&pane, ["A^", "B^", "C*^"], cx);
2615
2616 let save = pane
2617 .update(cx, |pane, cx| {
2618 pane.close_all_items(&CloseAllItems { save_intent: None }, cx)
2619 })
2620 .unwrap();
2621
2622 cx.executor().run_until_parked();
2623 cx.simulate_prompt_answer(2);
2624 save.await.unwrap();
2625 assert_item_labels(&pane, [], cx);
2626 }
2627
2628 fn init_test(cx: &mut TestAppContext) {
2629 cx.update(|cx| {
2630 let settings_store = SettingsStore::test(cx);
2631 cx.set_global(settings_store);
2632 theme::init(LoadThemes::JustBase, cx);
2633 crate::init_settings(cx);
2634 Project::init_settings(cx);
2635 });
2636 }
2637
2638 fn add_labeled_item(
2639 pane: &View<Pane>,
2640 label: &str,
2641 is_dirty: bool,
2642 cx: &mut VisualTestContext,
2643 ) -> Box<View<TestItem>> {
2644 pane.update(cx, |pane, cx| {
2645 let labeled_item = Box::new(
2646 cx.build_view(|cx| TestItem::new(cx).with_label(label).with_dirty(is_dirty)),
2647 );
2648 pane.add_item(labeled_item.clone(), false, false, None, cx);
2649 labeled_item
2650 })
2651 }
2652
2653 fn set_labeled_items<const COUNT: usize>(
2654 pane: &View<Pane>,
2655 labels: [&str; COUNT],
2656 cx: &mut VisualTestContext,
2657 ) -> [Box<View<TestItem>>; COUNT] {
2658 pane.update(cx, |pane, cx| {
2659 pane.items.clear();
2660 let mut active_item_index = 0;
2661
2662 let mut index = 0;
2663 let items = labels.map(|mut label| {
2664 if label.ends_with("*") {
2665 label = label.trim_end_matches("*");
2666 active_item_index = index;
2667 }
2668
2669 let labeled_item =
2670 Box::new(cx.build_view(|cx| TestItem::new(cx).with_label(label)));
2671 pane.add_item(labeled_item.clone(), false, false, None, cx);
2672 index += 1;
2673 labeled_item
2674 });
2675
2676 pane.activate_item(active_item_index, false, false, cx);
2677
2678 items
2679 })
2680 }
2681
2682 // Assert the item label, with the active item label suffixed with a '*'
2683 fn assert_item_labels<const COUNT: usize>(
2684 pane: &View<Pane>,
2685 expected_states: [&str; COUNT],
2686 cx: &mut VisualTestContext,
2687 ) {
2688 pane.update(cx, |pane, cx| {
2689 let actual_states = pane
2690 .items
2691 .iter()
2692 .enumerate()
2693 .map(|(ix, item)| {
2694 let mut state = item
2695 .to_any()
2696 .downcast::<TestItem>()
2697 .unwrap()
2698 .read(cx)
2699 .label
2700 .clone();
2701 if ix == pane.active_item_index {
2702 state.push('*');
2703 }
2704 if item.is_dirty(cx) {
2705 state.push('^');
2706 }
2707 state
2708 })
2709 .collect::<Vec<_>>();
2710
2711 assert_eq!(
2712 actual_states, expected_states,
2713 "pane items do not match expectation"
2714 );
2715 })
2716 }
2717}
2718
2719impl Render for DraggedTab {
2720 type Element = <Tab as RenderOnce>::Rendered;
2721
2722 fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
2723 let ui_font = ThemeSettings::get_global(cx).ui_font.family.clone();
2724 let item = &self.pane.read(cx).items[self.ix];
2725 let label = item.tab_content(Some(self.detail), false, cx);
2726 Tab::new("")
2727 .selected(self.is_active)
2728 .child(label)
2729 .render(cx)
2730 .font(ui_font)
2731 }
2732}