1use crate::persistence::model::DockData;
2use crate::{status_bar::StatusItemView, Workspace};
3use crate::{DraggedDock, Event, Pane};
4use client::proto;
5use gpui::{
6 deferred, div, px, Action, AnyView, App, Axis, Context, Corner, Entity, EntityId, EventEmitter,
7 FocusHandle, Focusable, IntoElement, KeyContext, MouseButton, MouseDownEvent, MouseUpEvent,
8 ParentElement, Render, SharedString, StyleRefinement, Styled, Subscription, WeakEntity, Window,
9};
10use schemars::JsonSchema;
11use serde::{Deserialize, Serialize};
12use settings::SettingsStore;
13use std::sync::Arc;
14use ui::{h_flex, ContextMenu, Divider, DividerColor, IconButton, Tooltip};
15use ui::{prelude::*, right_click_menu};
16
17pub(crate) const RESIZE_HANDLE_SIZE: Pixels = Pixels(6.);
18
19pub enum PanelEvent {
20 ZoomIn,
21 ZoomOut,
22 Activate,
23 Close,
24}
25
26pub use proto::PanelId;
27
28pub trait Panel: Focusable + EventEmitter<PanelEvent> + Render + Sized {
29 fn persistent_name() -> &'static str;
30 fn position(&self, window: &Window, cx: &App) -> DockPosition;
31 fn position_is_valid(&self, position: DockPosition) -> bool;
32 fn set_position(&mut self, position: DockPosition, window: &mut Window, cx: &mut Context<Self>);
33 fn size(&self, window: &Window, cx: &App) -> Pixels;
34 fn set_size(&mut self, size: Option<Pixels>, window: &mut Window, cx: &mut Context<Self>);
35 fn icon(&self, window: &Window, cx: &App) -> Option<ui::IconName>;
36 fn icon_tooltip(&self, window: &Window, cx: &App) -> Option<&'static str>;
37 fn toggle_action(&self) -> Box<dyn Action>;
38 fn icon_label(&self, _window: &Window, _: &App) -> Option<String> {
39 None
40 }
41 fn is_zoomed(&self, _window: &Window, _cx: &App) -> bool {
42 false
43 }
44 fn starts_open(&self, _window: &Window, _cx: &App) -> bool {
45 false
46 }
47 fn set_zoomed(&mut self, _zoomed: bool, _window: &mut Window, _cx: &mut Context<Self>) {}
48 fn set_active(&mut self, _active: bool, _window: &mut Window, _cx: &mut Context<Self>) {}
49 fn pane(&self) -> Option<Entity<Pane>> {
50 None
51 }
52 fn remote_id() -> Option<proto::PanelId> {
53 None
54 }
55 fn activation_priority(&self) -> u32;
56}
57
58pub trait PanelHandle: Send + Sync {
59 fn panel_id(&self) -> EntityId;
60 fn persistent_name(&self) -> &'static str;
61 fn position(&self, window: &Window, cx: &App) -> DockPosition;
62 fn position_is_valid(&self, position: DockPosition, cx: &App) -> bool;
63 fn set_position(&self, position: DockPosition, window: &mut Window, cx: &mut App);
64 fn is_zoomed(&self, window: &Window, cx: &App) -> bool;
65 fn set_zoomed(&self, zoomed: bool, window: &mut Window, cx: &mut App);
66 fn set_active(&self, active: bool, window: &mut Window, cx: &mut App);
67 fn remote_id(&self) -> Option<proto::PanelId>;
68 fn pane(&self, cx: &App) -> Option<Entity<Pane>>;
69 fn size(&self, window: &Window, cx: &App) -> Pixels;
70 fn set_size(&self, size: Option<Pixels>, window: &mut Window, cx: &mut App);
71 fn icon(&self, window: &Window, cx: &App) -> Option<ui::IconName>;
72 fn icon_tooltip(&self, window: &Window, cx: &App) -> Option<&'static str>;
73 fn toggle_action(&self, window: &Window, cx: &App) -> Box<dyn Action>;
74 fn icon_label(&self, window: &Window, cx: &App) -> Option<String>;
75 fn panel_focus_handle(&self, cx: &App) -> FocusHandle;
76 fn to_any(&self) -> AnyView;
77 fn activation_priority(&self, cx: &App) -> u32;
78 fn move_to_next_position(&self, window: &mut Window, cx: &mut App) {
79 let current_position = self.position(window, cx);
80 let next_position = [
81 DockPosition::Left,
82 DockPosition::Bottom,
83 DockPosition::Right,
84 ]
85 .into_iter()
86 .filter(|position| self.position_is_valid(*position, cx))
87 .skip_while(|valid_position| *valid_position != current_position)
88 .nth(1)
89 .unwrap_or(DockPosition::Left);
90
91 self.set_position(next_position, window, cx);
92 }
93}
94
95impl<T> PanelHandle for Entity<T>
96where
97 T: Panel,
98{
99 fn panel_id(&self) -> EntityId {
100 Entity::entity_id(self)
101 }
102
103 fn persistent_name(&self) -> &'static str {
104 T::persistent_name()
105 }
106
107 fn position(&self, window: &Window, cx: &App) -> DockPosition {
108 self.read(cx).position(window, cx)
109 }
110
111 fn position_is_valid(&self, position: DockPosition, cx: &App) -> bool {
112 self.read(cx).position_is_valid(position)
113 }
114
115 fn set_position(&self, position: DockPosition, window: &mut Window, cx: &mut App) {
116 self.update(cx, |this, cx| this.set_position(position, window, cx))
117 }
118
119 fn is_zoomed(&self, window: &Window, cx: &App) -> bool {
120 self.read(cx).is_zoomed(window, cx)
121 }
122
123 fn set_zoomed(&self, zoomed: bool, window: &mut Window, cx: &mut App) {
124 self.update(cx, |this, cx| this.set_zoomed(zoomed, window, cx))
125 }
126
127 fn set_active(&self, active: bool, window: &mut Window, cx: &mut App) {
128 self.update(cx, |this, cx| this.set_active(active, window, cx))
129 }
130
131 fn pane(&self, cx: &App) -> Option<Entity<Pane>> {
132 self.read(cx).pane()
133 }
134
135 fn remote_id(&self) -> Option<PanelId> {
136 T::remote_id()
137 }
138
139 fn size(&self, window: &Window, cx: &App) -> Pixels {
140 self.read(cx).size(window, cx)
141 }
142
143 fn set_size(&self, size: Option<Pixels>, window: &mut Window, cx: &mut App) {
144 self.update(cx, |this, cx| this.set_size(size, window, cx))
145 }
146
147 fn icon(&self, window: &Window, cx: &App) -> Option<ui::IconName> {
148 self.read(cx).icon(window, cx)
149 }
150
151 fn icon_tooltip(&self, window: &Window, cx: &App) -> Option<&'static str> {
152 self.read(cx).icon_tooltip(window, cx)
153 }
154
155 fn toggle_action(&self, _: &Window, cx: &App) -> Box<dyn Action> {
156 self.read(cx).toggle_action()
157 }
158
159 fn icon_label(&self, window: &Window, cx: &App) -> Option<String> {
160 self.read(cx).icon_label(window, cx)
161 }
162
163 fn to_any(&self) -> AnyView {
164 self.clone().into()
165 }
166
167 fn panel_focus_handle(&self, cx: &App) -> FocusHandle {
168 self.read(cx).focus_handle(cx).clone()
169 }
170
171 fn activation_priority(&self, cx: &App) -> u32 {
172 self.read(cx).activation_priority()
173 }
174}
175
176impl From<&dyn PanelHandle> for AnyView {
177 fn from(val: &dyn PanelHandle) -> Self {
178 val.to_any()
179 }
180}
181
182/// A container with a fixed [`DockPosition`] adjacent to a certain widown edge.
183/// Can contain multiple panels and show/hide itself with all contents.
184pub struct Dock {
185 position: DockPosition,
186 panel_entries: Vec<PanelEntry>,
187 workspace: WeakEntity<Workspace>,
188 is_open: bool,
189 active_panel_index: Option<usize>,
190 focus_handle: FocusHandle,
191 pub(crate) serialized_dock: Option<DockData>,
192 resizeable: bool,
193 _subscriptions: [Subscription; 2],
194}
195
196impl Focusable for Dock {
197 fn focus_handle(&self, _: &App) -> FocusHandle {
198 self.focus_handle.clone()
199 }
200}
201
202#[derive(Clone, Copy, Debug, Serialize, Deserialize, JsonSchema, PartialEq)]
203#[serde(rename_all = "lowercase")]
204pub enum DockPosition {
205 Left,
206 Bottom,
207 Right,
208}
209
210impl DockPosition {
211 fn label(&self) -> &'static str {
212 match self {
213 Self::Left => "left",
214 Self::Bottom => "bottom",
215 Self::Right => "right",
216 }
217 }
218
219 pub fn axis(&self) -> Axis {
220 match self {
221 Self::Left | Self::Right => Axis::Horizontal,
222 Self::Bottom => Axis::Vertical,
223 }
224 }
225}
226
227struct PanelEntry {
228 panel: Arc<dyn PanelHandle>,
229 _subscriptions: [Subscription; 3],
230}
231
232pub struct PanelButtons {
233 dock: Entity<Dock>,
234}
235
236impl Dock {
237 pub fn new(
238 position: DockPosition,
239 window: &mut Window,
240 cx: &mut Context<Workspace>,
241 ) -> Entity<Self> {
242 let focus_handle = cx.focus_handle();
243 let workspace = cx.entity().clone();
244 let dock = cx.new(|cx| {
245 let focus_subscription =
246 cx.on_focus(&focus_handle, window, |dock: &mut Dock, window, cx| {
247 if let Some(active_entry) = dock.active_panel_entry() {
248 active_entry.panel.panel_focus_handle(cx).focus(window)
249 }
250 });
251 let zoom_subscription = cx.subscribe(&workspace, |dock, workspace, e: &Event, cx| {
252 if matches!(e, Event::ZoomChanged) {
253 let is_zoomed = workspace.read(cx).zoomed.is_some();
254 dock.resizeable = !is_zoomed;
255 }
256 });
257 Self {
258 position,
259 workspace: workspace.downgrade(),
260 panel_entries: Default::default(),
261 active_panel_index: None,
262 is_open: false,
263 focus_handle: focus_handle.clone(),
264 _subscriptions: [focus_subscription, zoom_subscription],
265 serialized_dock: None,
266 resizeable: true,
267 }
268 });
269
270 cx.on_focus_in(&focus_handle, window, {
271 let dock = dock.downgrade();
272 move |workspace, window, cx| {
273 let Some(dock) = dock.upgrade() else {
274 return;
275 };
276 let Some(panel) = dock.read(cx).active_panel() else {
277 return;
278 };
279 if panel.is_zoomed(window, cx) {
280 workspace.zoomed = Some(panel.to_any().downgrade());
281 workspace.zoomed_position = Some(position);
282 } else {
283 workspace.zoomed = None;
284 workspace.zoomed_position = None;
285 }
286 cx.emit(Event::ZoomChanged);
287 workspace.dismiss_zoomed_items_to_reveal(Some(position), window, cx);
288 workspace.update_active_view_for_followers(window, cx)
289 }
290 })
291 .detach();
292
293 cx.observe_in(&dock, window, move |workspace, dock, window, cx| {
294 if dock.read(cx).is_open() {
295 if let Some(panel) = dock.read(cx).active_panel() {
296 if panel.is_zoomed(window, cx) {
297 workspace.zoomed = Some(panel.to_any().downgrade());
298 workspace.zoomed_position = Some(position);
299 cx.emit(Event::ZoomChanged);
300 return;
301 }
302 }
303 }
304 if workspace.zoomed_position == Some(position) {
305 workspace.zoomed = None;
306 workspace.zoomed_position = None;
307 cx.emit(Event::ZoomChanged);
308 }
309 })
310 .detach();
311
312 dock
313 }
314
315 pub fn position(&self) -> DockPosition {
316 self.position
317 }
318
319 pub fn is_open(&self) -> bool {
320 self.is_open
321 }
322
323 pub fn panel<T: Panel>(&self) -> Option<Entity<T>> {
324 self.panel_entries
325 .iter()
326 .find_map(|entry| entry.panel.to_any().clone().downcast().ok())
327 }
328
329 pub fn panel_index_for_type<T: Panel>(&self) -> Option<usize> {
330 self.panel_entries
331 .iter()
332 .position(|entry| entry.panel.to_any().downcast::<T>().is_ok())
333 }
334
335 pub fn panel_index_for_persistent_name(&self, ui_name: &str, _cx: &App) -> Option<usize> {
336 self.panel_entries
337 .iter()
338 .position(|entry| entry.panel.persistent_name() == ui_name)
339 }
340
341 pub fn panel_index_for_proto_id(&self, panel_id: PanelId) -> Option<usize> {
342 self.panel_entries
343 .iter()
344 .position(|entry| entry.panel.remote_id() == Some(panel_id))
345 }
346
347 fn active_panel_entry(&self) -> Option<&PanelEntry> {
348 self.active_panel_index
349 .and_then(|index| self.panel_entries.get(index))
350 }
351
352 pub(crate) fn set_open(&mut self, open: bool, window: &mut Window, cx: &mut Context<Self>) {
353 if open != self.is_open {
354 self.is_open = open;
355 if let Some(active_panel) = self.active_panel_entry() {
356 active_panel.panel.set_active(open, window, cx);
357 }
358
359 cx.notify();
360 }
361 }
362
363 pub fn set_panel_zoomed(
364 &mut self,
365 panel: &AnyView,
366 zoomed: bool,
367 window: &mut Window,
368 cx: &mut Context<Self>,
369 ) {
370 for entry in &mut self.panel_entries {
371 if entry.panel.panel_id() == panel.entity_id() {
372 if zoomed != entry.panel.is_zoomed(window, cx) {
373 entry.panel.set_zoomed(zoomed, window, cx);
374 }
375 } else if entry.panel.is_zoomed(window, cx) {
376 entry.panel.set_zoomed(false, window, cx);
377 }
378 }
379
380 self.workspace
381 .update(cx, |workspace, cx| {
382 workspace.serialize_workspace(window, cx);
383 })
384 .ok();
385 cx.notify();
386 }
387
388 pub fn zoom_out(&mut self, window: &mut Window, cx: &mut Context<Self>) {
389 for entry in &mut self.panel_entries {
390 if entry.panel.is_zoomed(window, cx) {
391 entry.panel.set_zoomed(false, window, cx);
392 }
393 }
394 }
395
396 pub(crate) fn add_panel<T: Panel>(
397 &mut self,
398 panel: Entity<T>,
399 workspace: WeakEntity<Workspace>,
400 window: &mut Window,
401 cx: &mut Context<Self>,
402 ) -> usize {
403 let subscriptions = [
404 cx.observe(&panel, |_, _, cx| cx.notify()),
405 cx.observe_global_in::<SettingsStore>(window, {
406 let workspace = workspace.clone();
407 let panel = panel.clone();
408
409 move |this, window, cx| {
410 let new_position = panel.read(cx).position(window, cx);
411 if new_position == this.position {
412 return;
413 }
414
415 let Ok(new_dock) = workspace.update(cx, |workspace, cx| {
416 if panel.is_zoomed(window, cx) {
417 workspace.zoomed_position = Some(new_position);
418 }
419 match new_position {
420 DockPosition::Left => &workspace.left_dock,
421 DockPosition::Bottom => &workspace.bottom_dock,
422 DockPosition::Right => &workspace.right_dock,
423 }
424 .clone()
425 }) else {
426 return;
427 };
428
429 let was_visible = this.is_open()
430 && this.visible_panel().map_or(false, |active_panel| {
431 active_panel.panel_id() == Entity::entity_id(&panel)
432 });
433
434 this.remove_panel(&panel, window, cx);
435
436 new_dock.update(cx, |new_dock, cx| {
437 new_dock.remove_panel(&panel, window, cx);
438 let index =
439 new_dock.add_panel(panel.clone(), workspace.clone(), window, cx);
440 if was_visible {
441 new_dock.set_open(true, window, cx);
442 new_dock.activate_panel(index, window, cx);
443 }
444 });
445 }
446 }),
447 cx.subscribe_in(
448 &panel,
449 window,
450 move |this, panel, event, window, cx| match event {
451 PanelEvent::ZoomIn => {
452 this.set_panel_zoomed(&panel.to_any(), true, window, cx);
453 if !PanelHandle::panel_focus_handle(panel, cx).contains_focused(window, cx)
454 {
455 window.focus(&panel.focus_handle(cx));
456 }
457 workspace
458 .update(cx, |workspace, cx| {
459 workspace.zoomed = Some(panel.downgrade().into());
460 workspace.zoomed_position =
461 Some(panel.read(cx).position(window, cx));
462 cx.emit(Event::ZoomChanged);
463 })
464 .ok();
465 }
466 PanelEvent::ZoomOut => {
467 this.set_panel_zoomed(&panel.to_any(), false, window, cx);
468 workspace
469 .update(cx, |workspace, cx| {
470 if workspace.zoomed_position == Some(this.position) {
471 workspace.zoomed = None;
472 workspace.zoomed_position = None;
473 cx.emit(Event::ZoomChanged);
474 }
475 cx.notify();
476 })
477 .ok();
478 }
479 PanelEvent::Activate => {
480 if let Some(ix) = this
481 .panel_entries
482 .iter()
483 .position(|entry| entry.panel.panel_id() == Entity::entity_id(panel))
484 {
485 this.set_open(true, window, cx);
486 this.activate_panel(ix, window, cx);
487 window.focus(&panel.read(cx).focus_handle(cx));
488 }
489 }
490 PanelEvent::Close => {
491 if this
492 .visible_panel()
493 .map_or(false, |p| p.panel_id() == Entity::entity_id(panel))
494 {
495 this.set_open(false, window, cx);
496 }
497 }
498 },
499 ),
500 ];
501
502 let index = match self
503 .panel_entries
504 .binary_search_by_key(&panel.read(cx).activation_priority(), |entry| {
505 entry.panel.activation_priority(cx)
506 }) {
507 Ok(ix) => ix,
508 Err(ix) => ix,
509 };
510 if let Some(active_index) = self.active_panel_index.as_mut() {
511 if *active_index >= index {
512 *active_index += 1;
513 }
514 }
515 self.panel_entries.insert(
516 index,
517 PanelEntry {
518 panel: Arc::new(panel.clone()),
519 _subscriptions: subscriptions,
520 },
521 );
522
523 self.restore_state(window, cx);
524 if panel.read(cx).starts_open(window, cx) {
525 self.activate_panel(index, window, cx);
526 self.set_open(true, window, cx);
527 }
528
529 cx.notify();
530 index
531 }
532
533 pub fn restore_state(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
534 if let Some(serialized) = self.serialized_dock.clone() {
535 if let Some(active_panel) = serialized.active_panel {
536 if let Some(idx) = self.panel_index_for_persistent_name(active_panel.as_str(), cx) {
537 self.activate_panel(idx, window, cx);
538 }
539 }
540
541 if serialized.zoom {
542 if let Some(panel) = self.active_panel() {
543 panel.set_zoomed(true, window, cx)
544 }
545 }
546 self.set_open(serialized.visible, window, cx);
547 return true;
548 }
549 false
550 }
551
552 pub fn remove_panel<T: Panel>(
553 &mut self,
554 panel: &Entity<T>,
555 window: &mut Window,
556 cx: &mut Context<Self>,
557 ) {
558 if let Some(panel_ix) = self
559 .panel_entries
560 .iter()
561 .position(|entry| entry.panel.panel_id() == Entity::entity_id(panel))
562 {
563 if let Some(active_panel_index) = self.active_panel_index.as_mut() {
564 match panel_ix.cmp(active_panel_index) {
565 std::cmp::Ordering::Less => {
566 *active_panel_index -= 1;
567 }
568 std::cmp::Ordering::Equal => {
569 self.active_panel_index = None;
570 self.set_open(false, window, cx);
571 }
572 std::cmp::Ordering::Greater => {}
573 }
574 }
575 self.panel_entries.remove(panel_ix);
576 cx.notify();
577 }
578 }
579
580 pub fn panels_len(&self) -> usize {
581 self.panel_entries.len()
582 }
583
584 pub fn activate_panel(&mut self, panel_ix: usize, window: &mut Window, cx: &mut Context<Self>) {
585 if Some(panel_ix) != self.active_panel_index {
586 if let Some(active_panel) = self.active_panel_entry() {
587 active_panel.panel.set_active(false, window, cx);
588 }
589
590 self.active_panel_index = Some(panel_ix);
591 if let Some(active_panel) = self.active_panel_entry() {
592 active_panel.panel.set_active(true, window, cx);
593 }
594
595 cx.notify();
596 }
597 }
598
599 pub fn visible_panel(&self) -> Option<&Arc<dyn PanelHandle>> {
600 let entry = self.visible_entry()?;
601 Some(&entry.panel)
602 }
603
604 pub fn active_panel(&self) -> Option<&Arc<dyn PanelHandle>> {
605 let panel_entry = self.active_panel_entry()?;
606 Some(&panel_entry.panel)
607 }
608
609 fn visible_entry(&self) -> Option<&PanelEntry> {
610 if self.is_open {
611 self.active_panel_entry()
612 } else {
613 None
614 }
615 }
616
617 pub fn zoomed_panel(&self, window: &Window, cx: &App) -> Option<Arc<dyn PanelHandle>> {
618 let entry = self.visible_entry()?;
619 if entry.panel.is_zoomed(window, cx) {
620 Some(entry.panel.clone())
621 } else {
622 None
623 }
624 }
625
626 pub fn panel_size(&self, panel: &dyn PanelHandle, window: &Window, cx: &App) -> Option<Pixels> {
627 self.panel_entries
628 .iter()
629 .find(|entry| entry.panel.panel_id() == panel.panel_id())
630 .map(|entry| entry.panel.size(window, cx))
631 }
632
633 pub fn active_panel_size(&self, window: &Window, cx: &App) -> Option<Pixels> {
634 if self.is_open {
635 self.active_panel_entry()
636 .map(|entry| entry.panel.size(window, cx))
637 } else {
638 None
639 }
640 }
641
642 pub fn resize_active_panel(
643 &mut self,
644 size: Option<Pixels>,
645 window: &mut Window,
646 cx: &mut Context<Self>,
647 ) {
648 if let Some(entry) = self.active_panel_entry() {
649 let size = size.map(|size| size.max(RESIZE_HANDLE_SIZE).round());
650
651 entry.panel.set_size(size, window, cx);
652 cx.notify();
653 }
654 }
655
656 pub fn toggle_action(&self) -> Box<dyn Action> {
657 match self.position {
658 DockPosition::Left => crate::ToggleLeftDock.boxed_clone(),
659 DockPosition::Bottom => crate::ToggleBottomDock.boxed_clone(),
660 DockPosition::Right => crate::ToggleRightDock.boxed_clone(),
661 }
662 }
663
664 fn dispatch_context() -> KeyContext {
665 let mut dispatch_context = KeyContext::new_with_defaults();
666 dispatch_context.add("Dock");
667
668 dispatch_context
669 }
670
671 pub fn clamp_panel_size(&mut self, max_size: Pixels, window: &mut Window, cx: &mut App) {
672 let max_size = px((max_size.0 - RESIZE_HANDLE_SIZE.0).abs());
673 for panel in self.panel_entries.iter().map(|entry| &entry.panel) {
674 if panel.size(window, cx) > max_size {
675 panel.set_size(Some(max_size.max(RESIZE_HANDLE_SIZE)), window, cx);
676 }
677 }
678 }
679}
680
681impl Render for Dock {
682 fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
683 let dispatch_context = Self::dispatch_context();
684 if let Some(entry) = self.visible_entry() {
685 let size = entry.panel.size(window, cx);
686
687 let position = self.position;
688 let create_resize_handle = || {
689 let handle = div()
690 .id("resize-handle")
691 .on_drag(DraggedDock(position), |dock, _, _, cx| {
692 cx.stop_propagation();
693 cx.new(|_| dock.clone())
694 })
695 .on_mouse_down(
696 MouseButton::Left,
697 cx.listener(|_, _: &MouseDownEvent, _, cx| {
698 cx.stop_propagation();
699 }),
700 )
701 .on_mouse_up(
702 MouseButton::Left,
703 cx.listener(|dock, e: &MouseUpEvent, window, cx| {
704 if e.click_count == 2 {
705 dock.resize_active_panel(None, window, cx);
706 dock.workspace
707 .update(cx, |workspace, cx| {
708 workspace.serialize_workspace(window, cx);
709 })
710 .ok();
711 cx.stop_propagation();
712 }
713 }),
714 )
715 .occlude();
716 match self.position() {
717 DockPosition::Left => deferred(
718 handle
719 .absolute()
720 .right(-RESIZE_HANDLE_SIZE / 2.)
721 .top(px(0.))
722 .h_full()
723 .w(RESIZE_HANDLE_SIZE)
724 .cursor_col_resize(),
725 ),
726 DockPosition::Bottom => deferred(
727 handle
728 .absolute()
729 .top(-RESIZE_HANDLE_SIZE / 2.)
730 .left(px(0.))
731 .w_full()
732 .h(RESIZE_HANDLE_SIZE)
733 .cursor_row_resize(),
734 ),
735 DockPosition::Right => deferred(
736 handle
737 .absolute()
738 .top(px(0.))
739 .left(-RESIZE_HANDLE_SIZE / 2.)
740 .h_full()
741 .w(RESIZE_HANDLE_SIZE)
742 .cursor_col_resize(),
743 ),
744 }
745 };
746
747 div()
748 .key_context(dispatch_context)
749 .track_focus(&self.focus_handle(cx))
750 .flex()
751 .bg(cx.theme().colors().panel_background)
752 .border_color(cx.theme().colors().border)
753 .overflow_hidden()
754 .map(|this| match self.position().axis() {
755 Axis::Horizontal => this.w(size).h_full().flex_row(),
756 Axis::Vertical => this.h(size).w_full().flex_col(),
757 })
758 .map(|this| match self.position() {
759 DockPosition::Left => this.border_r_1(),
760 DockPosition::Right => this.border_l_1(),
761 DockPosition::Bottom => this.border_t_1(),
762 })
763 .child(
764 div()
765 .map(|this| match self.position().axis() {
766 Axis::Horizontal => this.min_w(size).h_full(),
767 Axis::Vertical => this.min_h(size).w_full(),
768 })
769 .child(
770 entry
771 .panel
772 .to_any()
773 .cached(StyleRefinement::default().v_flex().size_full()),
774 ),
775 )
776 .when(self.resizeable, |this| this.child(create_resize_handle()))
777 } else {
778 div()
779 .key_context(dispatch_context)
780 .track_focus(&self.focus_handle(cx))
781 }
782 }
783}
784
785impl PanelButtons {
786 pub fn new(dock: Entity<Dock>, cx: &mut Context<Self>) -> Self {
787 cx.observe(&dock, |_, _, cx| cx.notify()).detach();
788 Self { dock }
789 }
790}
791
792impl Render for PanelButtons {
793 fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
794 let dock = self.dock.read(cx);
795 let active_index = dock.active_panel_index;
796 let is_open = dock.is_open;
797 let dock_position = dock.position;
798
799 let (menu_anchor, menu_attach) = match dock.position {
800 DockPosition::Left => (Corner::BottomLeft, Corner::TopLeft),
801 DockPosition::Bottom | DockPosition::Right => (Corner::BottomRight, Corner::TopRight),
802 };
803
804 let buttons: Vec<_> = dock
805 .panel_entries
806 .iter()
807 .enumerate()
808 .filter_map(|(i, entry)| {
809 let icon = entry.panel.icon(window, cx)?;
810 let icon_tooltip = entry.panel.icon_tooltip(window, cx)?;
811 let name = entry.panel.persistent_name();
812 let panel = entry.panel.clone();
813
814 let is_active_button = Some(i) == active_index && is_open;
815 let (action, tooltip) = if is_active_button {
816 let action = dock.toggle_action();
817
818 let tooltip: SharedString =
819 format!("Close {} dock", dock.position.label()).into();
820
821 (action, tooltip)
822 } else {
823 let action = entry.panel.toggle_action(window, cx);
824
825 (action, icon_tooltip.into())
826 };
827
828 Some(
829 right_click_menu(name)
830 .menu(move |window, cx| {
831 const POSITIONS: [DockPosition; 3] = [
832 DockPosition::Left,
833 DockPosition::Right,
834 DockPosition::Bottom,
835 ];
836
837 ContextMenu::build(window, cx, |mut menu, _, cx| {
838 for position in POSITIONS {
839 if position != dock_position
840 && panel.position_is_valid(position, cx)
841 {
842 let panel = panel.clone();
843 menu = menu.entry(
844 format!("Dock {}", position.label()),
845 None,
846 move |window, cx| {
847 panel.set_position(position, window, cx);
848 },
849 )
850 }
851 }
852 menu
853 })
854 })
855 .anchor(menu_anchor)
856 .attach(menu_attach)
857 .trigger(
858 IconButton::new(name, icon)
859 .icon_size(IconSize::Small)
860 .toggle_state(is_active_button)
861 .on_click({
862 let action = action.boxed_clone();
863 move |_, window, cx| {
864 window.dispatch_action(action.boxed_clone(), cx)
865 }
866 })
867 .tooltip(move |window, cx| {
868 Tooltip::for_action(tooltip.clone(), &*action, window, cx)
869 }),
870 ),
871 )
872 })
873 .collect();
874
875 let has_buttons = !buttons.is_empty();
876 h_flex()
877 .gap_1()
878 .children(buttons)
879 .when(has_buttons && dock.position == DockPosition::Left, |this| {
880 this.child(Divider::vertical().color(DividerColor::Border))
881 })
882 }
883}
884
885impl StatusItemView for PanelButtons {
886 fn set_active_pane_item(
887 &mut self,
888 _active_pane_item: Option<&dyn crate::ItemHandle>,
889 _window: &mut Window,
890 _cx: &mut Context<Self>,
891 ) {
892 // Nothing to do, panel buttons don't depend on the active center item
893 }
894}
895
896#[cfg(any(test, feature = "test-support"))]
897pub mod test {
898 use super::*;
899 use gpui::{actions, div, App, Context, Window};
900
901 pub struct TestPanel {
902 pub position: DockPosition,
903 pub zoomed: bool,
904 pub active: bool,
905 pub focus_handle: FocusHandle,
906 pub size: Pixels,
907 }
908 actions!(test, [ToggleTestPanel]);
909
910 impl EventEmitter<PanelEvent> for TestPanel {}
911
912 impl TestPanel {
913 pub fn new(position: DockPosition, cx: &mut App) -> Self {
914 Self {
915 position,
916 zoomed: false,
917 active: false,
918 focus_handle: cx.focus_handle(),
919 size: px(300.),
920 }
921 }
922 }
923
924 impl Render for TestPanel {
925 fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
926 div().id("test").track_focus(&self.focus_handle(cx))
927 }
928 }
929
930 impl Panel for TestPanel {
931 fn persistent_name() -> &'static str {
932 "TestPanel"
933 }
934
935 fn position(&self, _window: &Window, _: &App) -> super::DockPosition {
936 self.position
937 }
938
939 fn position_is_valid(&self, _: super::DockPosition) -> bool {
940 true
941 }
942
943 fn set_position(&mut self, position: DockPosition, _: &mut Window, cx: &mut Context<Self>) {
944 self.position = position;
945 cx.update_global::<SettingsStore, _>(|_, _| {});
946 }
947
948 fn size(&self, _window: &Window, _: &App) -> Pixels {
949 self.size
950 }
951
952 fn set_size(&mut self, size: Option<Pixels>, _window: &mut Window, _: &mut Context<Self>) {
953 self.size = size.unwrap_or(px(300.));
954 }
955
956 fn icon(&self, _window: &Window, _: &App) -> Option<ui::IconName> {
957 None
958 }
959
960 fn icon_tooltip(&self, _window: &Window, _cx: &App) -> Option<&'static str> {
961 None
962 }
963
964 fn toggle_action(&self) -> Box<dyn Action> {
965 ToggleTestPanel.boxed_clone()
966 }
967
968 fn is_zoomed(&self, _window: &Window, _: &App) -> bool {
969 self.zoomed
970 }
971
972 fn set_zoomed(&mut self, zoomed: bool, _window: &mut Window, _cx: &mut Context<Self>) {
973 self.zoomed = zoomed;
974 }
975
976 fn set_active(&mut self, active: bool, _window: &mut Window, _cx: &mut Context<Self>) {
977 self.active = active;
978 }
979
980 fn activation_priority(&self) -> u32 {
981 100
982 }
983 }
984
985 impl Focusable for TestPanel {
986 fn focus_handle(&self, _cx: &App) -> FocusHandle {
987 self.focus_handle.clone()
988 }
989 }
990}