fix(input-password-toggle, button): force update aria attributes (#30411)

Issue number: internal

---------

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## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->

The `ion-input-password-toggle` has aria attributes that are updated
based on the value visibility. However, those values do not reflect on
the native button. This leads to the screen readers to not announce
correctly.

## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->

- The aria attributes now reflects correctly within the native button.
- The `aria-label` has been updated to indicate the state of visibility.
- Added tests.

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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## Other information

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screenshots of how the component looks before and after the change. -->


[Preview](https://ionic-framework-git-fw-6525-ionic1.vercel.app/src/components/input-password-toggle/test/basic)

core/src/components/button/button.tsx

@@ -1,5 +1,5 @@
 import type { ComponentInterface, EventEmitter } from '@stencil/core';
-import { Component, Element, Event, Host, Prop, Watch, State, h } from '@stencil/core';
+import { Component, Element, Event, Host, Prop, Watch, State, forceUpdate, h } from '@stencil/core';
 import type { AnchorInterface, ButtonInterface } from '@utils/element-interface';
 import type { Attributes } from '@utils/helpers';
 import { inheritAriaAttributes, hasShadowDom } from '@utils/helpers';
@@ -158,6 +158,26 @@ export class Button implements ComponentInterface, AnchorInterface, ButtonInterf
    */
   @Event() ionBlur!: EventEmitter<void>;
 
+  /**
+   * This component is used within the `ion-input-password-toggle` component
+   * to toggle the visibility of the password input.
+   * These attributes need to update based on the state of the password input.
+   * Otherwise, the values will be stale.
+   *
+   * @param newValue
+   * @param _oldValue
+   * @param propName
+   */
+  @Watch('aria-checked')
+  @Watch('aria-label')
+  onAriaChanged(newValue: string, _oldValue: string, propName: string) {
+    this.inheritedAttributes = {
+      ...this.inheritedAttributes,
+      [propName]: newValue,
+    };
+    forceUpdate(this);
+  }
+
   /**
    * This is responsible for rendering a hidden native
    * button element inside the associated form. This allows

core/src/components/input-password-toggle/input-password-toggle.tsx

@@ -127,7 +127,7 @@ export class InputPasswordToggle implements ComponentInterface {
           fill="clear"
           shape="round"
           aria-checked={isPasswordVisible ? 'true' : 'false'}
-          aria-label="show password"
+          aria-label={isPasswordVisible ? 'Hide password' : 'Show password'}
           role="switch"
           type="button"
           onPointerDown={(ev) => {

core/src/components/input-password-toggle/test/a11y/input-password-toggle.e2e.ts

@@ -20,4 +20,38 @@ configs({ directions: ['ltr'] }).forEach(({ title, config }) => {
       expect(results.violations).toEqual([]);
     });
   });
+
+  test.describe(title('input password toggle: aria attributes'), () => {
+    test('should inherit aria attributes to inner button on load', async ({ page }) => {
+      await page.setContent(
+        `
+        <ion-input label="input" type="password">
+          <ion-input-password-toggle slot="end"></ion-input-password-toggle>
+        </ion-input>
+      `,
+        config
+      );
+
+      const nativeButton = page.locator('ion-input-password-toggle button');
+
+      await expect(nativeButton).toHaveAttribute('aria-label', 'Show password');
+      await expect(nativeButton).toHaveAttribute('aria-checked', 'false');
+    });
+    test('should inherit aria attributes to inner button after toggle', async ({ page }) => {
+      await page.setContent(
+        `
+        <ion-input label="input" type="password">
+          <ion-input-password-toggle slot="end"></ion-input-password-toggle>
+        </ion-input>
+      `,
+        config
+      );
+
+      const nativeButton = page.locator('ion-input-password-toggle button');
+      await nativeButton.click();
+
+      await expect(nativeButton).toHaveAttribute('aria-label', 'Hide password');
+      await expect(nativeButton).toHaveAttribute('aria-checked', 'true');
+    });
+  });
 });