fix(alert): long words wrap to next line (#28408)

Issue number: resolves #28406

---------

<!-- Please do not submit updates to dependencies unless it fixes an
issue. -->

<!-- Please try to limit your pull request to one type (bugfix, feature,
etc). Submit multiple pull requests if needed. -->

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

As part of #27898 we
updated the radio and checkbox labels to wrap to the next line instead
of truncate. However, we did not consider long words. As a result, long
words run outside of the container.

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

- The radio and checkbox labels now break on words too in addition to
white space characters.

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

<!-- If this introduces a breaking change, please describe the impact
and migration path for existing applications below. -->


## Other information

<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->

---------

Co-authored-by: ionitron <[email protected]>

Author: liamdebeasi

Diff for: core/src/components/alert/alert.scss

@@ -91,6 +91,26 @@
   overscroll-behavior-y: contain;
 }
 
+.alert-checkbox-label,
+.alert-radio-label {
+  /**
+   * This allows long words to wrap to the next line
+   * instead of flowing outside of the container.
+   *
+   * The "anywhere" keyword should be used instead
+   * of the "break-word" keyword since the parent
+   * container is using flexbox. Flex relies on min-content and
+   * max-content intrinsic sizes to structure the layout. Flex will
+   * wrap content only until it reaches its min-content intrinsic size
+   * which in this case is equal to the longest word in this container.
+   * "break-word" does not shrink the min-content intrinsic size
+   * of the flex item which causes the long word to still overflow.
+   * "anywhere" on the other hand does shrink the min-content
+   * intrinsic size which allows the long word to wrap to the next line.
+   */
+  overflow-wrap: anywhere;
+}
+
 /**
   * Scrollbars on mobile devices will be hidden.
   * Users can still scroll the content by swiping.

Diff for: core/src/components/alert/test/a11y/alert.e2e.ts

@@ -28,6 +28,59 @@ const testAria = async (
   expect(ariaDescribedBy).toBe(expectedAriaDescribedBy);
 };
 
+configs({ modes: ['ios'], directions: ['ltr'] }).forEach(({ title, screenshot, config }) => {
+  test.describe(title('alert: text wrapping'), () => {
+    test('should break on words and white spaces for radios', async ({ page }) => {
+      await page.setContent(
+        `
+        <ion-alert header='Text Wrapping'></ion-alert>
+
+        <script>
+          const alert = document.querySelector('ion-alert');
+          alert.inputs = [
+            { type: 'radio', value: 'a', label: 'ThisIsAllOneReallyLongWordThatShouldWrap' },
+            { type: 'radio', value: 'b', label: 'These are separate words that should wrap' }
+          ];
+        </script>
+      `,
+        config
+      );
+
+      const ionAlertDidPresent = await page.spyOnEvent('ionAlertDidPresent');
+      const alert = page.locator('ion-alert');
+
+      await alert.evaluate((el: HTMLIonAlertElement) => el.present());
+      await ionAlertDidPresent.next();
+
+      await expect(page).toHaveScreenshot(screenshot(`alert-radio-text-wrap`));
+    });
+    test('should break on words and white spaces for checkboxes', async ({ page }) => {
+      await page.setContent(
+        `
+        <ion-alert header='Text Wrapping'></ion-alert>
+
+        <script>
+          const alert = document.querySelector('ion-alert');
+          alert.inputs = [
+            { type: 'checkbox', value: 'a', label: 'ThisIsAllOneReallyLongWordThatShouldWrap' },
+            { type: 'checkbox', value: 'b', label: 'These are separate words that should wrap' }
+          ];
+        </script>
+      `,
+        config
+      );
+
+      const ionAlertDidPresent = await page.spyOnEvent('ionAlertDidPresent');
+      const alert = page.locator('ion-alert');
+
+      await alert.evaluate((el: HTMLIonAlertElement) => el.present());
+      await ionAlertDidPresent.next();
+
+      await expect(page).toHaveScreenshot(screenshot(`alert-checkbox-text-wrap`));
+    });
+  });
+});
+
 configs({ directions: ['ltr'] }).forEach(({ config, title }) => {
   test.describe(title('alert: a11y'), () => {
     test.beforeEach(async ({ page }) => {