dock.rs

  1use crate::DraggedDock;
  2use crate::{status_bar::StatusItemView, Workspace};
  3use gpui::{
  4    div, px, Action, AnchorCorner, AnyView, AppContext, Axis, ClickEvent, Div, Entity, EntityId,
  5    EventEmitter, FocusHandle, FocusableView, IntoElement, MouseButton, ParentElement, Render,
  6    SharedString, Styled, Subscription, View, ViewContext, VisualContext, WeakView, WindowContext,
  7};
  8use schemars::JsonSchema;
  9use serde::{Deserialize, Serialize};
 10use std::sync::Arc;
 11use ui::{h_stack, ContextMenu, IconButton, Tooltip};
 12use ui::{prelude::*, right_click_menu};
 13
 14pub enum PanelEvent {
 15    ChangePosition,
 16    ZoomIn,
 17    ZoomOut,
 18    Activate,
 19    Close,
 20    Focus,
 21}
 22
 23pub trait Panel: FocusableView + EventEmitter<PanelEvent> {
 24    fn persistent_name() -> &'static str;
 25    fn position(&self, cx: &WindowContext) -> DockPosition;
 26    fn position_is_valid(&self, position: DockPosition) -> bool;
 27    fn set_position(&mut self, position: DockPosition, cx: &mut ViewContext<Self>);
 28    fn size(&self, cx: &WindowContext) -> f32;
 29    fn set_size(&mut self, size: Option<f32>, cx: &mut ViewContext<Self>);
 30    // todo!("We should have a icon tooltip method, rather than using persistant_name")
 31    fn icon(&self, cx: &WindowContext) -> Option<ui::Icon>;
 32    fn toggle_action(&self) -> Box<dyn Action>;
 33    fn icon_label(&self, _: &WindowContext) -> Option<String> {
 34        None
 35    }
 36    fn is_zoomed(&self, _cx: &WindowContext) -> bool {
 37        false
 38    }
 39    fn set_zoomed(&mut self, _zoomed: bool, _cx: &mut ViewContext<Self>) {}
 40    fn set_active(&mut self, _active: bool, _cx: &mut ViewContext<Self>) {}
 41}
 42
 43pub trait PanelHandle: Send + Sync {
 44    fn entity_id(&self) -> EntityId;
 45    fn persistent_name(&self) -> &'static str;
 46    fn position(&self, cx: &WindowContext) -> DockPosition;
 47    fn position_is_valid(&self, position: DockPosition, cx: &WindowContext) -> bool;
 48    fn set_position(&self, position: DockPosition, cx: &mut WindowContext);
 49    fn is_zoomed(&self, cx: &WindowContext) -> bool;
 50    fn set_zoomed(&self, zoomed: bool, cx: &mut WindowContext);
 51    fn set_active(&self, active: bool, cx: &mut WindowContext);
 52    fn size(&self, cx: &WindowContext) -> f32;
 53    fn set_size(&self, size: Option<f32>, cx: &mut WindowContext);
 54    fn icon(&self, cx: &WindowContext) -> Option<ui::Icon>;
 55    fn toggle_action(&self, cx: &WindowContext) -> Box<dyn Action>;
 56    fn icon_label(&self, cx: &WindowContext) -> Option<String>;
 57    fn focus_handle(&self, cx: &AppContext) -> FocusHandle;
 58    fn to_any(&self) -> AnyView;
 59}
 60
 61impl<T> PanelHandle for View<T>
 62where
 63    T: Panel,
 64{
 65    fn entity_id(&self) -> EntityId {
 66        Entity::entity_id(self)
 67    }
 68
 69    fn persistent_name(&self) -> &'static str {
 70        T::persistent_name()
 71    }
 72
 73    fn position(&self, cx: &WindowContext) -> DockPosition {
 74        self.read(cx).position(cx)
 75    }
 76
 77    fn position_is_valid(&self, position: DockPosition, cx: &WindowContext) -> bool {
 78        self.read(cx).position_is_valid(position)
 79    }
 80
 81    fn set_position(&self, position: DockPosition, cx: &mut WindowContext) {
 82        self.update(cx, |this, cx| this.set_position(position, cx))
 83    }
 84
 85    fn is_zoomed(&self, cx: &WindowContext) -> bool {
 86        self.read(cx).is_zoomed(cx)
 87    }
 88
 89    fn set_zoomed(&self, zoomed: bool, cx: &mut WindowContext) {
 90        self.update(cx, |this, cx| this.set_zoomed(zoomed, cx))
 91    }
 92
 93    fn set_active(&self, active: bool, cx: &mut WindowContext) {
 94        self.update(cx, |this, cx| this.set_active(active, cx))
 95    }
 96
 97    fn size(&self, cx: &WindowContext) -> f32 {
 98        self.read(cx).size(cx)
 99    }
100
101    fn set_size(&self, size: Option<f32>, cx: &mut WindowContext) {
102        self.update(cx, |this, cx| this.set_size(size, cx))
103    }
104
105    fn icon(&self, cx: &WindowContext) -> Option<ui::Icon> {
106        self.read(cx).icon(cx)
107    }
108
109    fn toggle_action(&self, cx: &WindowContext) -> Box<dyn Action> {
110        self.read(cx).toggle_action()
111    }
112
113    fn icon_label(&self, cx: &WindowContext) -> Option<String> {
114        self.read(cx).icon_label(cx)
115    }
116
117    fn to_any(&self) -> AnyView {
118        self.clone().into()
119    }
120
121    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
122        self.read(cx).focus_handle(cx).clone()
123    }
124}
125
126impl From<&dyn PanelHandle> for AnyView {
127    fn from(val: &dyn PanelHandle) -> Self {
128        val.to_any()
129    }
130}
131
132pub struct Dock {
133    position: DockPosition,
134    panel_entries: Vec<PanelEntry>,
135    is_open: bool,
136    active_panel_index: usize,
137    focus_handle: FocusHandle,
138    focus_subscription: Subscription,
139}
140
141impl FocusableView for Dock {
142    fn focus_handle(&self, _: &AppContext) -> FocusHandle {
143        self.focus_handle.clone()
144    }
145}
146
147#[derive(Clone, Copy, Debug, Serialize, Deserialize, JsonSchema, PartialEq)]
148#[serde(rename_all = "lowercase")]
149pub enum DockPosition {
150    Left,
151    Bottom,
152    Right,
153}
154
155impl DockPosition {
156    fn to_label(&self) -> &'static str {
157        match self {
158            Self::Left => "left",
159            Self::Bottom => "bottom",
160            Self::Right => "right",
161        }
162    }
163
164    // todo!()
165    // fn to_resize_handle_side(self) -> HandleSide {
166    //     match self {
167    //         Self::Left => HandleSide::Right,
168    //         Self::Bottom => HandleSide::Top,
169    //         Self::Right => HandleSide::Left,
170    //     }
171    // }
172
173    pub fn axis(&self) -> Axis {
174        match self {
175            Self::Left | Self::Right => Axis::Horizontal,
176            Self::Bottom => Axis::Vertical,
177        }
178    }
179}
180
181struct PanelEntry {
182    panel: Arc<dyn PanelHandle>,
183    // todo!()
184    // context_menu: View<ContextMenu>,
185    _subscriptions: [Subscription; 2],
186}
187
188pub struct PanelButtons {
189    dock: View<Dock>,
190    workspace: WeakView<Workspace>,
191}
192
193impl Dock {
194    pub fn new(position: DockPosition, cx: &mut ViewContext<'_, Self>) -> Self {
195        let focus_handle = cx.focus_handle();
196        let focus_subscription = cx.on_focus(&focus_handle, |dock, cx| {
197            if let Some(active_entry) = dock.panel_entries.get(dock.active_panel_index) {
198                active_entry.panel.focus_handle(cx).focus(cx)
199            }
200        });
201        Self {
202            position,
203            panel_entries: Default::default(),
204            active_panel_index: 0,
205            is_open: false,
206            focus_handle,
207            focus_subscription,
208        }
209    }
210
211    pub fn position(&self) -> DockPosition {
212        self.position
213    }
214
215    pub fn is_open(&self) -> bool {
216        self.is_open
217    }
218
219    // todo!()
220    //     pub fn has_focus(&self, cx: &WindowContext) -> bool {
221    //         self.visible_panel()
222    //             .map_or(false, |panel| panel.has_focus(cx))
223    //     }
224
225    pub fn panel<T: Panel>(&self) -> Option<View<T>> {
226        self.panel_entries
227            .iter()
228            .find_map(|entry| entry.panel.to_any().clone().downcast().ok())
229    }
230
231    pub fn panel_index_for_type<T: Panel>(&self) -> Option<usize> {
232        self.panel_entries
233            .iter()
234            .position(|entry| entry.panel.to_any().downcast::<T>().is_ok())
235    }
236
237    pub fn panel_index_for_persistent_name(
238        &self,
239        ui_name: &str,
240        _cx: &AppContext,
241    ) -> Option<usize> {
242        self.panel_entries
243            .iter()
244            .position(|entry| entry.panel.persistent_name() == ui_name)
245    }
246
247    pub fn active_panel_index(&self) -> usize {
248        self.active_panel_index
249    }
250
251    pub(crate) fn set_open(&mut self, open: bool, cx: &mut ViewContext<Self>) {
252        if open != self.is_open {
253            self.is_open = open;
254            if let Some(active_panel) = self.panel_entries.get(self.active_panel_index) {
255                active_panel.panel.set_active(open, cx);
256            }
257
258            cx.notify();
259        }
260    }
261
262    pub fn set_panel_zoomed(&mut self, panel: &AnyView, zoomed: bool, cx: &mut ViewContext<Self>) {
263        for entry in &mut self.panel_entries {
264            if entry.panel.entity_id() == panel.entity_id() {
265                if zoomed != entry.panel.is_zoomed(cx) {
266                    entry.panel.set_zoomed(zoomed, cx);
267                }
268            } else if entry.panel.is_zoomed(cx) {
269                entry.panel.set_zoomed(false, cx);
270            }
271        }
272
273        cx.notify();
274    }
275
276    pub fn zoom_out(&mut self, cx: &mut ViewContext<Self>) {
277        for entry in &mut self.panel_entries {
278            if entry.panel.is_zoomed(cx) {
279                entry.panel.set_zoomed(false, cx);
280            }
281        }
282    }
283
284    pub(crate) fn add_panel<T: Panel>(
285        &mut self,
286        panel: View<T>,
287        workspace: WeakView<Workspace>,
288        cx: &mut ViewContext<Self>,
289    ) {
290        let subscriptions = [
291            cx.observe(&panel, |_, _, cx| cx.notify()),
292            cx.subscribe(&panel, move |this, panel, event, cx| match event {
293                PanelEvent::ChangePosition => {
294                    let new_position = panel.read(cx).position(cx);
295
296                    let Ok(new_dock) = workspace.update(cx, |workspace, cx| {
297                        if panel.is_zoomed(cx) {
298                            workspace.zoomed_position = Some(new_position);
299                        }
300                        match new_position {
301                            DockPosition::Left => &workspace.left_dock,
302                            DockPosition::Bottom => &workspace.bottom_dock,
303                            DockPosition::Right => &workspace.right_dock,
304                        }
305                        .clone()
306                    }) else {
307                        return;
308                    };
309
310                    let was_visible = this.is_open()
311                        && this.visible_panel().map_or(false, |active_panel| {
312                            active_panel.entity_id() == Entity::entity_id(&panel)
313                        });
314
315                    this.remove_panel(&panel, cx);
316
317                    new_dock.update(cx, |new_dock, cx| {
318                        new_dock.add_panel(panel.clone(), workspace.clone(), cx);
319                        if was_visible {
320                            new_dock.set_open(true, cx);
321                            new_dock.activate_panel(this.panels_len() - 1, cx);
322                        }
323                    });
324                }
325                PanelEvent::ZoomIn => {
326                    this.set_panel_zoomed(&panel.to_any(), true, cx);
327                    if !panel.focus_handle(cx).contains_focused(cx) {
328                        cx.focus_view(&panel);
329                    }
330                    workspace
331                        .update(cx, |workspace, cx| {
332                            workspace.zoomed = Some(panel.downgrade().into());
333                            workspace.zoomed_position = Some(panel.read(cx).position(cx));
334                        })
335                        .ok();
336                }
337                PanelEvent::ZoomOut => {
338                    this.set_panel_zoomed(&panel.to_any(), false, cx);
339                    workspace
340                        .update(cx, |workspace, cx| {
341                            if workspace.zoomed_position == Some(this.position) {
342                                workspace.zoomed = None;
343                                workspace.zoomed_position = None;
344                            }
345                            cx.notify();
346                        })
347                        .ok();
348                }
349                // todo!() we do not use this event in the production code (even in zed1), remove it
350                PanelEvent::Activate => {
351                    if let Some(ix) = this
352                        .panel_entries
353                        .iter()
354                        .position(|entry| entry.panel.entity_id() == Entity::entity_id(&panel))
355                    {
356                        this.set_open(true, cx);
357                        this.activate_panel(ix, cx);
358                        cx.focus_view(&panel);
359                    }
360                }
361                PanelEvent::Close => {
362                    if this
363                        .visible_panel()
364                        .map_or(false, |p| p.entity_id() == Entity::entity_id(&panel))
365                    {
366                        this.set_open(false, cx);
367                    }
368                }
369                PanelEvent::Focus => {}
370            }),
371        ];
372
373        // todo!()
374        // let dock_view_id = cx.view_id();
375        self.panel_entries.push(PanelEntry {
376            panel: Arc::new(panel),
377            // todo!()
378            // context_menu: cx.add_view(|cx| {
379            //     let mut menu = ContextMenu::new(dock_view_id, cx);
380            //     menu.set_position_mode(OverlayPositionMode::Local);
381            //     menu
382            // }),
383            _subscriptions: subscriptions,
384        });
385        cx.notify()
386    }
387
388    pub fn remove_panel<T: Panel>(&mut self, panel: &View<T>, cx: &mut ViewContext<Self>) {
389        if let Some(panel_ix) = self
390            .panel_entries
391            .iter()
392            .position(|entry| entry.panel.entity_id() == Entity::entity_id(panel))
393        {
394            if panel_ix == self.active_panel_index {
395                self.active_panel_index = 0;
396                self.set_open(false, cx);
397            } else if panel_ix < self.active_panel_index {
398                self.active_panel_index -= 1;
399            }
400            self.panel_entries.remove(panel_ix);
401            cx.notify();
402        }
403    }
404
405    pub fn panels_len(&self) -> usize {
406        self.panel_entries.len()
407    }
408
409    pub fn activate_panel(&mut self, panel_ix: usize, cx: &mut ViewContext<Self>) {
410        if panel_ix != self.active_panel_index {
411            if let Some(active_panel) = self.panel_entries.get(self.active_panel_index) {
412                active_panel.panel.set_active(false, cx);
413            }
414
415            self.active_panel_index = panel_ix;
416            if let Some(active_panel) = self.panel_entries.get(self.active_panel_index) {
417                active_panel.panel.set_active(true, cx);
418            }
419
420            cx.notify();
421        }
422    }
423
424    pub fn visible_panel(&self) -> Option<&Arc<dyn PanelHandle>> {
425        let entry = self.visible_entry()?;
426        Some(&entry.panel)
427    }
428
429    pub fn active_panel(&self) -> Option<&Arc<dyn PanelHandle>> {
430        Some(&self.panel_entries.get(self.active_panel_index)?.panel)
431    }
432
433    fn visible_entry(&self) -> Option<&PanelEntry> {
434        if self.is_open {
435            self.panel_entries.get(self.active_panel_index)
436        } else {
437            None
438        }
439    }
440
441    pub fn zoomed_panel(&self, cx: &WindowContext) -> Option<Arc<dyn PanelHandle>> {
442        let entry = self.visible_entry()?;
443        if entry.panel.is_zoomed(cx) {
444            Some(entry.panel.clone())
445        } else {
446            None
447        }
448    }
449
450    pub fn panel_size(&self, panel: &dyn PanelHandle, cx: &WindowContext) -> Option<f32> {
451        self.panel_entries
452            .iter()
453            .find(|entry| entry.panel.entity_id() == panel.entity_id())
454            .map(|entry| entry.panel.size(cx))
455    }
456
457    pub fn active_panel_size(&self, cx: &WindowContext) -> Option<f32> {
458        if self.is_open {
459            self.panel_entries
460                .get(self.active_panel_index)
461                .map(|entry| entry.panel.size(cx))
462        } else {
463            None
464        }
465    }
466
467    pub fn resize_active_panel(&mut self, size: Option<f32>, cx: &mut ViewContext<Self>) {
468        if let Some(entry) = self.panel_entries.get_mut(self.active_panel_index) {
469            entry.panel.set_size(size, cx);
470            cx.notify();
471        }
472    }
473
474    pub fn toggle_action(&self) -> Box<dyn Action> {
475        match self.position {
476            DockPosition::Left => crate::ToggleLeftDock.boxed_clone(),
477            DockPosition::Bottom => crate::ToggleBottomDock.boxed_clone(),
478            DockPosition::Right => crate::ToggleRightDock.boxed_clone(),
479        }
480    }
481}
482
483impl Render for Dock {
484    type Element = Div;
485
486    fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
487        if let Some(entry) = self.visible_entry() {
488            let size = entry.panel.size(cx);
489
490            let mut pre_resize_handle = None;
491            let mut post_resize_handle = None;
492            let position = self.position;
493            let handler = div()
494                .id("resize-handle")
495                .bg(cx.theme().colors().border)
496                .on_drag(move |cx| cx.build_view(|_| DraggedDock(position)))
497                .on_click(cx.listener(|v, e: &ClickEvent, cx| {
498                    if e.down.button == MouseButton::Left && e.down.click_count == 2 {
499                        v.resize_active_panel(None, cx)
500                    }
501                }))
502                .z_index(1);
503
504            const HANDLE_SIZE: Pixels = Pixels(6.);
505
506            match self.position() {
507                DockPosition::Left => {
508                    post_resize_handle =
509                        Some(handler.min_w(HANDLE_SIZE).h_full().cursor_col_resize())
510                }
511                DockPosition::Bottom => {
512                    pre_resize_handle =
513                        Some(handler.w_full().min_h(HANDLE_SIZE).cursor_row_resize())
514                }
515                DockPosition::Right => {
516                    pre_resize_handle =
517                        Some(handler.min_w(HANDLE_SIZE).h_full().cursor_col_resize())
518                }
519            }
520
521            div()
522                .flex()
523                .border_color(cx.theme().colors().border)
524                .map(|this| match self.position().axis() {
525                    Axis::Horizontal => this.w(px(size)).h_full().flex_row(),
526                    Axis::Vertical => this.h(px(size)).w_full().flex_col(),
527                })
528                .map(|this| match self.position() {
529                    DockPosition::Left => this.border_r(),
530                    DockPosition::Right => this.border_l(),
531                    DockPosition::Bottom => this.border_t(),
532                })
533                .children(pre_resize_handle)
534                .child(
535                    div()
536                        .map(|this| match self.position().axis() {
537                            Axis::Horizontal => this.min_w(px(size) - HANDLE_SIZE).h_full(),
538                            Axis::Vertical => this.min_h(px(size) - HANDLE_SIZE).w_full(),
539                        })
540                        .child(entry.panel.to_any()),
541                )
542                .children(post_resize_handle)
543        } else {
544            div()
545        }
546    }
547}
548
549impl PanelButtons {
550    pub fn new(
551        dock: View<Dock>,
552        workspace: WeakView<Workspace>,
553        cx: &mut ViewContext<Self>,
554    ) -> Self {
555        cx.observe(&dock, |_, _, cx| cx.notify()).detach();
556        Self { dock, workspace }
557    }
558}
559
560// impl Render for PanelButtons {
561//     type Element = ();
562
563//     fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
564//         todo!("")
565//     }
566
567//     fn ui_name() -> &'static str {
568//         "PanelButtons"
569//     }
570
571//     fn render(&mut self, cx: &mut ViewContext<Self>) -> AnyElement<Self> {
572//         let theme = &settings::get::<ThemeSettings>(cx).theme;
573//         let tooltip_style = theme.tooltip.clone();
574//         let theme = &theme.workspace.status_bar.panel_buttons;
575//         let button_style = theme.button.clone();
576//         let dock = self.dock.read(cx);
577//         let active_ix = dock.active_panel_index;
578//         let is_open = dock.is_open;
579//         let dock_position = dock.position;
580//         let group_style = match dock_position {
581//             DockPosition::Left => theme.group_left,
582//             DockPosition::Bottom => theme.group_bottom,
583//             DockPosition::Right => theme.group_right,
584//         };
585//         let menu_corner = match dock_position {
586//             DockPosition::Left => AnchorCorner::BottomLeft,
587//             DockPosition::Bottom | DockPosition::Right => AnchorCorner::BottomRight,
588//         };
589
590//         let panels = dock
591//             .panel_entries
592//             .iter()
593//             .map(|item| (item.panel.clone(), item.context_menu.clone()))
594//             .collect::<Vec<_>>();
595//         Flex::row()
596//             .with_children(panels.into_iter().enumerate().filter_map(
597//                 |(panel_ix, (view, context_menu))| {
598//                     let icon_path = view.icon_path(cx)?;
599//                     let is_active = is_open && panel_ix == active_ix;
600//                     let (tooltip, tooltip_action) = if is_active {
601//                         (
602//                             format!("Close {} dock", dock_position.to_label()),
603//                             Some(match dock_position {
604//                                 DockPosition::Left => crate::ToggleLeftDock.boxed_clone(),
605//                                 DockPosition::Bottom => crate::ToggleBottomDock.boxed_clone(),
606//                                 DockPosition::Right => crate::ToggleRightDock.boxed_clone(),
607//                             }),
608//                         )
609//                     } else {
610//                         view.icon_tooltip(cx)
611//                     };
612//                     Some(
613//                         Stack::new()
614//                             .with_child(
615//                                 MouseEventHandler::new::<Self, _>(panel_ix, cx, |state, cx| {
616//                                     let style = button_style.in_state(is_active);
617
618//                                     let style = style.style_for(state);
619//                                     Flex::row()
620//                                         .with_child(
621//                                             Svg::new(icon_path)
622//                                                 .with_color(style.icon_color)
623//                                                 .constrained()
624//                                                 .with_width(style.icon_size)
625//                                                 .aligned(),
626//                                         )
627//                                         .with_children(if let Some(label) = view.icon_label(cx) {
628//                                             Some(
629//                                                 Label::new(label, style.label.text.clone())
630//                                                     .contained()
631//                                                     .with_style(style.label.container)
632//                                                     .aligned(),
633//                                             )
634//                                         } else {
635//                                             None
636//                                         })
637//                                         .constrained()
638//                                         .with_height(style.icon_size)
639//                                         .contained()
640//                                         .with_style(style.container)
641//                                 })
642//                                 .with_cursor_style(CursorStyle::PointingHand)
643//                                 .on_click(MouseButton::Left, {
644//                                     let tooltip_action =
645//                                         tooltip_action.as_ref().map(|action| action.boxed_clone());
646//                                     move |_, this, cx| {
647//                                         if let Some(tooltip_action) = &tooltip_action {
648//                                             let window = cx.window();
649//                                             let view_id = this.workspace.id();
650//                                             let tooltip_action = tooltip_action.boxed_clone();
651//                                             cx.spawn(|_, mut cx| async move {
652//                                                 window.dispatch_action(
653//                                                     view_id,
654//                                                     &*tooltip_action,
655//                                                     &mut cx,
656//                                                 );
657//                                             })
658//                                             .detach();
659//                                         }
660//                                     }
661//                                 })
662//                                 .on_click(MouseButton::Right, {
663//                                     let view = view.clone();
664//                                     let menu = context_menu.clone();
665//                                     move |_, _, cx| {
666//                                         const POSITIONS: [DockPosition; 3] = [
667//                                             DockPosition::Left,
668//                                             DockPosition::Right,
669//                                             DockPosition::Bottom,
670//                                         ];
671
672//                                         menu.update(cx, |menu, cx| {
673//                                             let items = POSITIONS
674//                                                 .into_iter()
675//                                                 .filter(|position| {
676//                                                     *position != dock_position
677//                                                         && view.position_is_valid(*position, cx)
678//                                                 })
679//                                                 .map(|position| {
680//                                                     let view = view.clone();
681//                                                     ContextMenuItem::handler(
682//                                                         format!("Dock {}", position.to_label()),
683//                                                         move |cx| view.set_position(position, cx),
684//                                                     )
685//                                                 })
686//                                                 .collect();
687//                                             menu.show(Default::default(), menu_corner, items, cx);
688//                                         })
689//                                     }
690//                                 })
691//                                 .with_tooltip::<Self>(
692//                                     panel_ix,
693//                                     tooltip,
694//                                     tooltip_action,
695//                                     tooltip_style.clone(),
696//                                     cx,
697//                                 ),
698//                             )
699//                             .with_child(ChildView::new(&context_menu, cx)),
700//                     )
701//                 },
702//             ))
703//             .contained()
704//             .with_style(group_style)
705//             .into_any()
706//     }
707// }
708
709// here be kittens
710impl Render for PanelButtons {
711    type Element = Div;
712
713    fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
714        // todo!()
715        let dock = self.dock.read(cx);
716        let active_index = dock.active_panel_index;
717        let is_open = dock.is_open;
718        let dock_position = dock.position;
719
720        let (menu_anchor, menu_attach) = match dock.position {
721            DockPosition::Left => (AnchorCorner::BottomLeft, AnchorCorner::TopLeft),
722            DockPosition::Bottom | DockPosition::Right => {
723                (AnchorCorner::BottomRight, AnchorCorner::TopRight)
724            }
725        };
726
727        let buttons = dock
728            .panel_entries
729            .iter()
730            .enumerate()
731            .filter_map(|(i, entry)| {
732                let icon = entry.panel.icon(cx)?;
733                let name = entry.panel.persistent_name();
734                let panel = entry.panel.clone();
735
736                let is_active_button = i == active_index && is_open;
737
738                let (action, tooltip) = if is_active_button {
739                    let action = dock.toggle_action();
740
741                    let tooltip: SharedString =
742                        format!("Close {} dock", dock.position.to_label()).into();
743
744                    (action, tooltip)
745                } else {
746                    let action = entry.panel.toggle_action(cx);
747
748                    (action, name.into())
749                };
750
751                Some(
752                    right_click_menu(name)
753                        .menu(move |cx| {
754                            const POSITIONS: [DockPosition; 3] = [
755                                DockPosition::Left,
756                                DockPosition::Right,
757                                DockPosition::Bottom,
758                            ];
759
760                            ContextMenu::build(cx, |mut menu, cx| {
761                                for position in POSITIONS {
762                                    if position != dock_position
763                                        && panel.position_is_valid(position, cx)
764                                    {
765                                        let panel = panel.clone();
766                                        menu = menu.entry(position.to_label(), move |cx| {
767                                            panel.set_position(position, cx);
768                                        })
769                                    }
770                                }
771                                menu
772                            })
773                        })
774                        .anchor(menu_anchor)
775                        .attach(menu_attach)
776                        .trigger(
777                            IconButton::new(name, icon)
778                                .selected(is_active_button)
779                                .on_click({
780                                    let action = action.boxed_clone();
781                                    move |_, cx| cx.dispatch_action(action.boxed_clone())
782                                })
783                                .tooltip(move |cx| {
784                                    Tooltip::for_action(tooltip.clone(), &*action, cx)
785                                }),
786                        ),
787                )
788            });
789
790        h_stack().gap_0p5().children(buttons)
791    }
792}
793
794impl StatusItemView for PanelButtons {
795    fn set_active_pane_item(
796        &mut self,
797        _active_pane_item: Option<&dyn crate::ItemHandle>,
798        _cx: &mut ViewContext<Self>,
799    ) {
800        // Nothing to do, panel buttons don't depend on the active center item
801    }
802}
803
804#[cfg(any(test, feature = "test-support"))]
805pub mod test {
806    use super::*;
807    use gpui::{actions, div, Div, ViewContext, WindowContext};
808
809    pub struct TestPanel {
810        pub position: DockPosition,
811        pub zoomed: bool,
812        pub active: bool,
813        pub focus_handle: FocusHandle,
814        pub size: f32,
815    }
816    actions!(test, [ToggleTestPanel]);
817
818    impl EventEmitter<PanelEvent> for TestPanel {}
819
820    impl TestPanel {
821        pub fn new(position: DockPosition, cx: &mut WindowContext) -> Self {
822            Self {
823                position,
824                zoomed: false,
825                active: false,
826                focus_handle: cx.focus_handle(),
827                size: 300.,
828            }
829        }
830    }
831
832    impl Render for TestPanel {
833        type Element = Div;
834
835        fn render(&mut self, _cx: &mut ViewContext<Self>) -> Self::Element {
836            div()
837        }
838    }
839
840    impl Panel for TestPanel {
841        fn persistent_name() -> &'static str {
842            "TestPanel"
843        }
844
845        fn position(&self, _: &gpui::WindowContext) -> super::DockPosition {
846            self.position
847        }
848
849        fn position_is_valid(&self, _: super::DockPosition) -> bool {
850            true
851        }
852
853        fn set_position(&mut self, position: DockPosition, cx: &mut ViewContext<Self>) {
854            self.position = position;
855            cx.emit(PanelEvent::ChangePosition);
856        }
857
858        fn size(&self, _: &WindowContext) -> f32 {
859            self.size
860        }
861
862        fn set_size(&mut self, size: Option<f32>, _: &mut ViewContext<Self>) {
863            self.size = size.unwrap_or(300.);
864        }
865
866        fn icon(&self, _: &WindowContext) -> Option<ui::Icon> {
867            None
868        }
869
870        fn toggle_action(&self) -> Box<dyn Action> {
871            ToggleTestPanel.boxed_clone()
872        }
873
874        fn is_zoomed(&self, _: &WindowContext) -> bool {
875            self.zoomed
876        }
877
878        fn set_zoomed(&mut self, zoomed: bool, _cx: &mut ViewContext<Self>) {
879            self.zoomed = zoomed;
880        }
881
882        fn set_active(&mut self, active: bool, _cx: &mut ViewContext<Self>) {
883            self.active = active;
884        }
885    }
886
887    impl FocusableView for TestPanel {
888        fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
889            self.focus_handle.clone()
890        }
891    }
892}