Fix focus on hidden widget in Either (#1860)

* Fix focus on hidden widget in Either

* udpate CHANGELOG and AUTHORS

* Fix (?) hidden widget focus bug in Tab

I couldn't reproduce the bug in the example as the tab bar steals the focus anyway when we click on a tab

Whatever, it's still cleaner.

I also removed spurious ctx.request_layout calls, as it's already called in ctx.children_changed

* update the changelog

Co-authored-by: Bruno Dupuis <[email protected]>
Co-authored-by: Christoph <[email protected]>

Author: 3 people

AUTHORS

@@ -15,3 +15,4 @@ Garrett Risley
 Robert Wittams
 Jaap Aarts
 Maximilian Köstler
+Bruno Dupuis

CHANGELOG.md

@@ -84,6 +84,7 @@ You can find its changes [documented below](#070---2021-01-01).
 - X11 backend now supports scaling([#1751] by [@Maan2003])
 - X11 backend now supports changing cursors ([#1755] by [@Maan2003])
 - X11 backend now uses the platform locale ([#1756] by [@Maan2003])
+- `Either` and `Tab` widgets were still propagating events to hidden widgets ([#1860] by [@lisael])
 
 ### Visual
 
@@ -493,6 +494,7 @@ Last release without a changelog :(
 [@r-ml]: https://github.com/r-ml
 [@djeedai]: https://github.com/djeedai
 [@bjorn]: https://github.com/bjorn
+[@lisael]: https://github.com/lisael
 
 [#599]: https://github.com/linebender/druid/pull/599
 [#611]: https://github.com/linebender/druid/pull/611
@@ -744,6 +746,7 @@ Last release without a changelog :(
 [#1825]: https://github.com/linebender/druid/pull/1825
 [#1843]: https://github.com/linebender/druid/pull/1843
 [#1851]: https://github.com/linebender/druid/pull/1851
+[#1860]: https://github.com/linebender/druid/pull/1860
 [#1861]: https://github.com/linebender/druid/pull/1861
 [#1863]: https://github.com/linebender/druid/pull/1863
 

druid/src/widget/either.rs

@@ -75,7 +75,7 @@ impl<T: Data> Widget<T> for Either<T> {
         let current = (self.closure)(data, env);
         if current != self.current {
             self.current = current;
-            ctx.request_layout();
+            ctx.children_changed();
         }
         self.current_widget().update(ctx, data, env)
     }

druid/src/widget/tabs.rs

@@ -374,7 +374,6 @@ impl<TP: TabsPolicy> Widget<TabsState<TP>> for TabBar<TP> {
         if let LifeCycle::WidgetAdded = event {
             self.ensure_tabs(data);
             ctx.children_changed();
-            ctx.request_layout();
         }
 
         for (_, tab) in self.tabs.iter_mut() {
@@ -397,7 +396,6 @@ impl<TP: TabsPolicy> Widget<TabsState<TP>> for TabBar<TP> {
         if data.policy.tabs_changed(&old_data.inner, &data.inner) {
             self.ensure_tabs(data);
             ctx.children_changed();
-            ctx.request_layout();
         } else if old_data.selected != data.selected {
             ctx.request_paint();
         }
@@ -611,7 +609,6 @@ impl<TP: TabsPolicy> Widget<TabsState<TP>> for TabsBody<TP> {
         if let LifeCycle::WidgetAdded = event {
             self.make_tabs(data);
             ctx.children_changed();
-            ctx.request_layout();
         }
 
         if event.should_propagate_to_hidden() {
@@ -638,7 +635,6 @@ impl<TP: TabsPolicy> Widget<TabsState<TP>> for TabsBody<TP> {
     ) {
         let init = if data.policy.tabs_changed(&old_data.inner, &data.inner) {
             ctx.children_changed();
-            ctx.request_layout();
             Some(self.make_tabs(data))
         } else {
             None
@@ -648,7 +644,7 @@ impl<TP: TabsPolicy> Widget<TabsState<TP>> for TabsBody<TP> {
             self.transition_state = self
                 .transition
                 .tab_changed(old_data.selected, data.selected);
-            ctx.request_layout();
+            ctx.children_changed();
 
             if self.transition_state.is_some() {
                 ctx.request_anim_frame();