Merge branch 'schilchSICKAG-fix/a11y-errors-for-blur' into next

Author: claviska

docs/pages/resources/changelog.md

@@ -18,6 +18,7 @@ New versions of Shoelace are released as-needed and generally occur when a criti
 - Fixed a bug that in `<sl-dropdown>` that prevented tab from working properly in some cases [#2371]
 - Fixed the guard on popover to allow virtual elements [#2399]
 - Fixed the close button in `<sl-alert>` so clicking above/below it doesn't inadvertently close it [#2375]
+- Fixed accessibility issues for elements that are closed while having slotted focused children. [#2383]
 
 ## 2.20.0
 

src/components/alert/alert.component.ts

@@ -1,4 +1,5 @@
 import { animateTo, stopAnimations } from '../../internal/animate.js';
+import { blurActiveElement } from '../../internal/closeActiveElement.js';
 import { classMap } from 'lit/directives/class-map.js';
 import { getAnimation, setDefaultAnimation } from '../../utilities/animation-registry.js';
 import { HasSlotController } from '../../internal/slot.js';
@@ -157,6 +158,7 @@ export default class SlAlert extends ShoelaceElement {
       this.emit('sl-after-show');
     } else {
       // Hide
+      blurActiveElement(this);
       this.emit('sl-hide');
 
       clearTimeout(this.autoHideTimeout);

src/components/dialog/dialog.component.ts

@@ -1,4 +1,5 @@
 import { animateTo, stopAnimations } from '../../internal/animate.js';
+import { blurActiveElement } from '../../internal/closeActiveElement.js';
 import { classMap } from 'lit/directives/class-map.js';
 import { getAnimation, setDefaultAnimation } from '../../utilities/animation-registry.js';
 import { HasSlotController } from '../../internal/slot.js';
@@ -208,6 +209,7 @@ export default class SlDialog extends ShoelaceElement {
       this.emit('sl-after-show');
     } else {
       // Hide
+      blurActiveElement(this);
       this.emit('sl-hide');
       this.removeOpenListeners();
       this.modal.deactivate();

src/components/drawer/drawer.component.ts

@@ -1,4 +1,5 @@
 import { animateTo, stopAnimations } from '../../internal/animate.js';
+import { blurActiveElement } from '../../internal/closeActiveElement.js';
 import { classMap } from 'lit/directives/class-map.js';
 import { getAnimation, setDefaultAnimation } from '../../utilities/animation-registry.js';
 import { HasSlotController } from '../../internal/slot.js';
@@ -237,6 +238,7 @@ export default class SlDrawer extends ShoelaceElement {
       this.emit('sl-after-show');
     } else {
       // Hide
+      blurActiveElement(this);
       this.emit('sl-hide');
       this.removeOpenListeners();
 

src/internal/closeActiveElement.ts

@@ -0,0 +1,12 @@
+/**
+ * Calls the blur method on the current active element if it is a child of the provided element.
+ * Needed for fixing a11y errors in console.
+ * @see https://github.com/shoelace-style/shoelace/issues/2283
+ * @param elm The element to check
+ */
+export const blurActiveElement = (elm: HTMLElement) => {
+  const { activeElement } = document;
+  if (activeElement && elm.contains(activeElement)) {
+    (document.activeElement as HTMLElement)?.blur();
+  }
+};