EuiWrappingPopover example in popover docs for help

[rshen91]

Summary

This is for further context in issue #5015

The example is in http://localhost:8030/#/layout/popover at the bottom elastic_charts_wrapping_example.js is the file. The demo is <ElasticChartsColorPickerStoryExample />

User should be able to use the tab key to select the color icon and then hit the enter key to open the color picker. They can then tab through all the options in the color picker. The issue Im having and am stuck on is when the user hits Enter on the Done button, focus is not returned to the legend item color icon. The behavior is fine with the escape key when the color picker is open.

Thank you!

Checklist

• Check against all themes for compatibility in both light and dark modes
• Checked in mobile
• Checked in Chrome, Safari, Edge, and Firefox
• Props have proper autodocs and playground toggles
• Added documentation
• Checked Code Sandbox works for the any docs examples
• Added or updated jest tests
• Checked for breaking changes and labeled appropriately
• Checked for accessibility including keyboard-only and screenreader modes
• A changelog entry exists and is marked appropriately

[kibanamachine]

Preview documentation changes for this PR: https://eui.elastic.co/pr_5102/

[thompsongl]

@rshen91 I don't have a good answer yet as to why focus isn't returned automatically, but introducing a slight timeout to anchor.focus() in your handleClose method works:

const handleClose = () => {
        onClose();
-       anchor.focus()
+       requestAnimationFrame(() => anchor.focus());