fix(telekom-header): flyout hover/click handling

packages/components/src/components/telekom/telekom-nav-flyout/readme.md

@@ -14,6 +14,13 @@
 | `triggerSelector` | `trigger-selector` | Selector to query the trigger element in case it's not the previous sibling | `string`  | `undefined` |
 
 
+## Events
+
+| Event            | Description | Type               |
+| ---------------- | ----------- | ------------------ |
+| `scale-expanded` |             | `CustomEvent<any>` |
+
+
 ## Methods
 
 ### `hide() => Promise<void>`

packages/components/src/components/telekom/telekom-nav-flyout/telekom-nav-flyout.tsx

@@ -14,6 +14,7 @@ import {
   h,
   Host,
   Element,
+  Event,
   Listen,
   Method,
   Prop,
@@ -22,6 +23,7 @@ import {
 } from '@stencil/core';
 import { HTMLStencilElement } from '@stencil/core/internal';
 import cx from 'classnames';
+import { emitEvent } from '../../../utils/utils';
 
 // TODO make util
 const animFinished = (el: HTMLElement | ShadowRoot) => {
@@ -58,6 +60,8 @@ export class TelekomNavItem {
   @State() isExpanded: boolean = this.expanded;
   @State() animationState: 'in' | 'out' | undefined;
 
+  @Event({ eventName: 'scale-expanded', bubbles: true }) scaleExpanded;
+
   private parentElement: HTMLElement;
 
   @Listen('keydown', { target: 'window' })
@@ -73,16 +77,6 @@ export class TelekomNavItem {
     }
   }
 
-  // @Listen('focusin', { target: 'document' })
-  // handleDocumentFocusin(event) {
-  //   if (!this.isExpanded) {
-  //     return;
-  //   }
-  //   if (!this.hostElement.contains(event.target)) {
-  //     this.expanded = false;
-  //   }
-  // }
-
   @Listen('scale-close-nav-flyout')
   handleScaleCloseNavFlyout() {
     this.expanded = false;
@@ -114,24 +108,43 @@ export class TelekomNavItem {
     }
     this.triggerElement.setAttribute('aria-haspopup', 'true');
     this.triggerElement.setAttribute('aria-expanded', String(this.expanded));
-    this.triggerElement.addEventListener('click', this.handleTriggerClick);
     if (this.hover) {
       this.triggerElement.addEventListener('mouseenter', this.handlePointerIn);
+      this.triggerElement.addEventListener(
+        'keypress',
+        this.handleSpaceOrEnterForHover
+      );
+    } else {
+      this.triggerElement.addEventListener('click', this.handleTriggerClick);
     }
   }
 
   disconnectedCallback() {
     this.triggerElement.removeEventListener('click', this.handleTriggerClick);
+    this.triggerElement.removeEventListener('mouseenter', this.handlePointerIn);
+    this.triggerElement.removeEventListener(
+      'keypress',
+      this.handleSpaceOrEnterForHover
+    );
   }
 
+  handleSpaceOrEnterForHover = (event: KeyboardEvent) => {
+    if (this.isExpanded) {
+      return;
+    }
+    if (event.key === 'Enter' || event.key === ' ') {
+      this.expanded = true;
+      this.show();
+    }
+  };
+
   handleTriggerClick = (event: MouseEvent) => {
     if (event.ctrlKey) {
       return;
     }
     event.preventDefault();
     event.stopImmediatePropagation();
     this.expanded = !this.expanded;
-    this.expanded ? this.show() : this.hide();
     this.parentElement.removeEventListener('mouseleave', this.handlePointerOut);
   };
 
@@ -156,6 +169,7 @@ export class TelekomNavItem {
       await animFinished(this.hostElement.shadowRoot);
       this.animationState = undefined;
       this.triggerElement.setAttribute('aria-expanded', 'true');
+      emitEvent(this, 'scaleExpanded', { expanded: true });
     });
   }
 
@@ -167,6 +181,7 @@ export class TelekomNavItem {
       this.animationState = undefined;
       this.isExpanded = false;
       this.triggerElement.setAttribute('aria-expanded', 'false');
+      emitEvent(this, 'scaleExpanded', { expanded: false });
     });
   }
 

packages/components/src/components/telekom/telekom-nav-item/telekom-nav-item.css

@@ -70,7 +70,8 @@
   cursor: pointer;
 }
 
-.scale-telekom-nav-item > :where(a, button):hover {
+.scale-telekom-nav-item > :where(a, button):hover,
+.scale-telekom-nav-item > :where(button[aria-expanded='true']) {
   color: var(--telekom-color-text-and-icon-primary-hovered);
 }
 .scale-telekom-nav-item > :where(a, button):active {
@@ -116,6 +117,28 @@
   left: 0;
 }
 
+.scale-telekom-nav-list[variant='main-nav']
+  > .scale-telekom-nav-item
+  > :where(a, button):hover:after,
+.scale-telekom-nav-list[variant='main-nav']
+  > .scale-telekom-nav-item
+  > :where(button[aria-expanded='true']):after,
+.scale-telekom-nav-list[variant='functions']
+  > .scale-telekom-nav-item
+  > :where(a, button):hover:after,
+.scale-telekom-nav-list[variant='functions']
+  > .scale-telekom-nav-item
+  > :where(button[aria-expanded='true']):after {
+  content: '';
+  width: 100%;
+  height: var(--telekom-spacing-unit-x05);
+  background: var(--telekom-color-primary-standard);
+  display: block;
+  position: absolute;
+  bottom: 0;
+  left: 0;
+}
+
 /* variants: meta-nav-external, meta-nav, lang-switcher (top bar) */
 
 .scale-telekom-nav-list[variant='meta-nav-external']

packages/components/src/components/telekom/telekom-nav-list/telekom-nav-list.tsx

@@ -9,9 +9,12 @@
  * file, You can obtain one at https://mozilla.org/MPL/2.0/.
  */
 
-import { Component, h, Host, Element, Prop } from '@stencil/core';
+import { Component, h, Host, Element, Listen, Prop } from '@stencil/core';
 import { HTMLStencilElement } from '@stencil/core/internal';
 
+const isDirectChild = (parent: HTMLElement, child: HTMLElement) =>
+  [...parent.children].includes(child);
+
 @Component({
   tag: 'scale-telekom-nav-list',
   styleUrl: 'telekom-nav-list.css',
@@ -28,6 +31,25 @@ export class TelekomNavList {
     | 'main-nav'
     | 'functions' = 'main-nav';
 
+  @Listen('scale-expanded')
+  handleScaleExpanded(event) {
+    if (event.detail.expanded) {
+      this.closeExpandedFlyoutSiblings(event.target);
+    }
+  }
+
+  closeExpandedFlyoutSiblings(target: HTMLElement) {
+    const siblingItems = [...this.hostElement.children].filter(
+      (x) => !x.contains(target)
+    ) as HTMLElement[];
+    siblingItems.forEach((item) => {
+      const flyout = item.querySelector('scale-telekom-nav-flyout');
+      if (isDirectChild(item, flyout) && flyout.expanded) {
+        flyout.expanded = false;
+      }
+    });
+  }
+
   render() {
     return (
       <Host class="scale-telekom-nav-list">