From e619596dfa0926737df2a9177da2a8b4a6ceeee1 Mon Sep 17 00:00:00 2001
From: "github-actions[bot]"
 <41898282+github-actions[bot]@users.noreply.github.com>
Date: Tue, 23 Jan 2024 07:32:20 +0100
Subject: [PATCH] :bug: fix(bal-file-upload): File upload component sets focus
 on different component on click (#1299)

* Create PR for #1283

* fix(field): links A11y information only for direct controls, labels and messages

* chore: remove console.log

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Gery Hirschfeld <gerhard.hirschfeld@baloise.ch>
---
 .changeset/swift-roses-guess.md               |  5 ++
 .../src/components/bal-field/bal-field.tsx    | 73 ++++++++++++++-----
 .../bal-field/test/bal-field.nested.html      | 30 ++++++++
 .../src/utils/mutation/mutation.interfaces.ts |  1 +
 .../src/utils/mutation/mutation.listener.ts   |  9 ++-
 5 files changed, 98 insertions(+), 20 deletions(-)
 create mode 100644 .changeset/swift-roses-guess.md
 create mode 100644 packages/components/src/components/bal-field/test/bal-field.nested.html

diff --git a/.changeset/swift-roses-guess.md b/.changeset/swift-roses-guess.md
new file mode 100644
index 0000000000..abc583851f
--- /dev/null
+++ b/.changeset/swift-roses-guess.md
@@ -0,0 +1,5 @@
+---
+'@baloise/design-system-components': patch
+---
+
+Field component links A11y information only for direct controls, labels and messages.
diff --git a/packages/components/src/components/bal-field/bal-field.tsx b/packages/components/src/components/bal-field/bal-field.tsx
index b71f83a5f7..cf9b7a191c 100644
--- a/packages/components/src/components/bal-field/bal-field.tsx
+++ b/packages/components/src/components/bal-field/bal-field.tsx
@@ -113,28 +113,63 @@ export class Field implements ComponentInterface, BalMutationObserver {
     await this.syncAriaAttributes()
   }
 
+  private isDirectChild = (el: HTMLElement): boolean => {
+    if (!el) {
+      return false
+    }
+
+    const parent = el.parentElement
+    if (!parent) {
+      return false
+    }
+    if (parent.nodeName.toLowerCase() === 'bal-field' && parent !== this.el) {
+      return false
+    }
+    if (parent === this.el) {
+      return true
+    }
+    return this.isDirectChild(parent)
+  }
+
+  private findDirectChild = (selectors: string): BalAriaFormLinking | undefined => {
+    const element = this.el.querySelector<any>(selectors)
+    const isDirectChild = this.isDirectChild(element)
+    if (isDirectChild) {
+      return element
+    }
+    return undefined
+  }
+
+  private findDirectChildren = (selectors: string[]): BalAriaFormLinking[] => {
+    return selectors
+      .map(selector => {
+        return Array.from(this.el.querySelectorAll<any>(selector)).filter(this.isDirectChild)
+      })
+      .flat()
+  }
+
   async syncAriaAttributes(): Promise<void> {
     await deepReady(this.el)
     await waitAfterFramePaint()
 
-    const label: BalAriaFormLinking = this.el.querySelector<any>('bal-field-label bal-label')
-    const message: BalAriaFormLinking = this.el.querySelector<any>('bal-field-message')
-    const controls: BalAriaFormLinking[] = [
-      ...Array.from(this.el.querySelectorAll<any>('bal-field-control bal-input')),
-      ...Array.from(this.el.querySelectorAll<any>('bal-field-control bal-select')),
-      ...Array.from(this.el.querySelectorAll<any>('bal-field-control bal-input-date')),
-      ...Array.from(this.el.querySelectorAll<any>('bal-field-control bal-checkbox')),
-      ...Array.from(this.el.querySelectorAll<any>('bal-field-control bal-radio')),
-      ...Array.from(this.el.querySelectorAll<any>('bal-field-control bal-checkbox-group')),
-      ...Array.from(this.el.querySelectorAll<any>('bal-field-control bal-radio-group')),
-      ...Array.from(this.el.querySelectorAll<any>('bal-field-control bal-number-input')),
-      ...Array.from(this.el.querySelectorAll<any>('bal-field-control bal-time-input')),
-      ...Array.from(this.el.querySelectorAll<any>('bal-field-control bal-datepicker')),
-      ...Array.from(this.el.querySelectorAll<any>('bal-field-control bal-input-slider')),
-      ...Array.from(this.el.querySelectorAll<any>('bal-field-control bal-input-stepper')),
-      ...Array.from(this.el.querySelectorAll<any>('bal-field-control bal-textarea')),
-      ...Array.from(this.el.querySelectorAll<any>('bal-field-control bal-file-upload')),
-    ]
+    const label = this.findDirectChild('bal-field-label bal-label')
+    const message = this.findDirectChild('bal-field-message')
+    const controls = this.findDirectChildren([
+      'bal-field-control bal-input',
+      'bal-field-control bal-select',
+      'bal-field-control bal-input-date',
+      'bal-field-control bal-checkbox',
+      'bal-field-control bal-radio',
+      'bal-field-control bal-checkbox-group',
+      'bal-field-control bal-radio-group',
+      'bal-field-control bal-number-input',
+      'bal-field-control bal-time-input',
+      'bal-field-control bal-datepicker',
+      'bal-field-control bal-input-slider',
+      'bal-field-control bal-input-stepper',
+      'bal-field-control bal-textarea',
+      'bal-field-control bal-file-upload',
+    ])
 
     const ariaForm = defaultBalAriaForm
 
@@ -164,7 +199,7 @@ export class Field implements ComponentInterface, BalMutationObserver {
 
   mutationObserverActive = true
 
-  @ListenToMutation({ subtree: false })
+  @ListenToMutation({ subtree: false, waitAfterFramePrint: true })
   mutationListener(): void {
     this.triggerAllHandlers()
     this.syncAriaAttributes()
diff --git a/packages/components/src/components/bal-field/test/bal-field.nested.html b/packages/components/src/components/bal-field/test/bal-field.nested.html
new file mode 100644
index 0000000000..053f2bb4c1
--- /dev/null
+++ b/packages/components/src/components/bal-field/test/bal-field.nested.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html dir="ltr" lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=5.0" />
+    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
+    <link rel="stylesheet" href="/assets/baloise-design-system.css" />
+    <script type="module" src="/build/design-system-components.esm.js"></script>
+    <script nomodule src="/build/design-system-components.js"></script>
+  </head>
+  <body>
+    <bal-app>
+      <div class="container">
+        <bal-field>
+          <bal-field-control>
+            <bal-checkbox class="one">One</bal-checkbox>
+          </bal-field-control>
+
+          <bal-field>
+            <div>
+              <bal-field-control>
+                <bal-checkbox class="two">Two</bal-checkbox>
+              </bal-field-control>
+            </div>
+          </bal-field>
+        </bal-field>
+      </div>
+    </bal-app>
+  </body>
+</html>
diff --git a/packages/components/src/utils/mutation/mutation.interfaces.ts b/packages/components/src/utils/mutation/mutation.interfaces.ts
index 69e81b68d2..57d3db18b5 100644
--- a/packages/components/src/utils/mutation/mutation.interfaces.ts
+++ b/packages/components/src/utils/mutation/mutation.interfaces.ts
@@ -1,6 +1,7 @@
 export interface MutationObserverOptions extends MutationObserverInit {
   tags: string[]
   closest?: string
+  waitAfterFramePrint?: boolean
 }
 
 export interface BalMutationObserver {
diff --git a/packages/components/src/utils/mutation/mutation.listener.ts b/packages/components/src/utils/mutation/mutation.listener.ts
index 83a7347c4c..fbd6b8c0ac 100644
--- a/packages/components/src/utils/mutation/mutation.listener.ts
+++ b/packages/components/src/utils/mutation/mutation.listener.ts
@@ -1,8 +1,10 @@
+import { deepReady, waitAfterFramePaint } from '../helpers'
 import { ListenerAbstract } from '../types/listener'
 import { MutationObserverOptions } from './mutation.interfaces'
 
 export class BalMutationListener extends ListenerAbstract {
   private tags: string[] = []
+  private waitAfterFramePrint = false
   private mutationObserver: MutationObserver | undefined = undefined
   private mutationObserverInit: MutationObserverInit = {
     childList: true,
@@ -13,6 +15,7 @@ export class BalMutationListener extends ListenerAbstract {
 
   constructor(options: Partial<MutationObserverOptions>) {
     super()
+    this.waitAfterFramePrint = options.waitAfterFramePrint || this.waitAfterFramePrint
     this.tags = (options.tags || []).map(t => t.toUpperCase())
     this.mutationObserverInit = {
       childList: options.childList === false ? false : true,
@@ -22,11 +25,15 @@ export class BalMutationListener extends ListenerAbstract {
     }
   }
 
-  connect(el: HTMLElement): void {
+  async connect(el: HTMLElement) {
     super.connect(el)
     if (typeof MutationObserver === 'undefined') {
       return
     }
+    if (this.waitAfterFramePrint) {
+      await deepReady(el)
+      await waitAfterFramePaint()
+    }
     this.destroyMutationObserver()
     this.mutationObserver = new MutationObserver(this.mutationCallback)
     this.mutationObserver.observe(el, this.mutationObserverInit)