fix(components/popovers): popovers with a hover trigger display when the trigger element is focused (#1991)

libs/components/popovers/src/lib/modules/popover/popover.directive.spec.ts

@@ -430,6 +430,65 @@ describe('Popover directive', () => {
       expect(popover).toBeNull();
     }));
 
+    it('should open and close popover via focus when a hover trigger is used', fakeAsync(() => {
+      fixture.componentInstance.trigger = 'mouseenter';
+
+      detectChangesFakeAsync();
+
+      const button = getCallerElement();
+
+      button?.focus();
+      SkyAppTestUtility.fireDomEvent(button, 'focusin');
+
+      detectChangesFakeAsync();
+
+      let popover = getPopoverElement();
+
+      expect(isElementVisible(popover)).toEqual(true);
+
+      // Simulate moving the mouse to the popover.
+      SkyAppTestUtility.fireDomEvent(popover, 'mouseenter');
+
+      detectChangesFakeAsync();
+
+      popover = getPopoverElement();
+
+      // Confirm popover is still open.
+      expect(isElementVisible(popover)).toEqual(true);
+
+      // Simulate moving the mouse from the popover to the trigger button.
+      SkyAppTestUtility.fireDomEvent(popover, 'mouseleave');
+      tick();
+      fixture.detectChanges();
+      SkyAppTestUtility.fireDomEvent(button, 'mouseenter');
+      tick();
+      fixture.detectChanges();
+
+      popover = getPopoverElement();
+
+      // Confirm popover is still open.
+      expect(isElementVisible(popover)).toEqual(true);
+
+      // Simulate mouse leaving the trigger button.
+      SkyAppTestUtility.fireDomEvent(button, 'mouseleave');
+
+      detectChangesFakeAsync();
+
+      popover = getPopoverElement();
+
+      // Confirm popover is still open.
+      expect(isElementVisible(popover)).toEqual(true);
+
+      SkyAppTestUtility.fireDomEvent(button, 'focusout');
+
+      detectChangesFakeAsync();
+
+      popover = getPopoverElement();
+
+      // Menu should now be closed.
+      expect(popover).toBeNull();
+    }));
+
     it('should close popover when clicking outside', fakeAsync(() => {
       detectChangesFakeAsync();
 

libs/components/popovers/src/lib/modules/popover/popover.directive.ts

@@ -215,11 +215,39 @@ export class SkyPopoverDirective implements OnInit, OnDestroy {
             this.skyPopover.isActive &&
             this.skyPopoverTrigger === 'mouseenter'
           ) {
-            // Give the popover a chance to set its isMouseEnter flag before checking to see
-            // if it should be closed.
-            setTimeout(() => {
-              this.#closePopoverOrMarkForClose();
-            });
+            if (document.activeElement !== element) {
+              // Give the popover a chance to set its isMouseEnter flag before checking to see
+              // if it should be closed.
+              setTimeout(() => {
+                this.#closePopoverOrMarkForClose();
+              });
+            }
+          }
+        }
+      });
+
+    observableFromEvent(element, 'focusin')
+      .pipe(takeUntil(this.#ngUnsubscribe))
+      .subscribe(() => {
+        if (this.skyPopover) {
+          if (
+            !this.skyPopover.isActive &&
+            this.skyPopoverTrigger === 'mouseenter'
+          ) {
+            this.#sendMessage(SkyPopoverMessageType.Open);
+          }
+        }
+      });
+
+    observableFromEvent(element, 'focusout')
+      .pipe(takeUntil(this.#ngUnsubscribe))
+      .subscribe(() => {
+        if (this.skyPopover) {
+          if (
+            this.skyPopover.isActive &&
+            this.skyPopoverTrigger === 'mouseenter'
+          ) {
+            this.#sendMessage(SkyPopoverMessageType.Close);
           }
         }
       });