Accessibility: Improve the File Editors interstitial warning.

The warning displayed upon first visit on the File Editors introduced in [41774]
needs to be the only perceivable content in the page for users of assistive
technologies. It looks like a modal but it's not exactly an ARIA dialog, not an
ARIA alert either, and needs some special treatment.

- constrains tabbing within the modal
- uses `wp.a11y.speak()` to make screen readers announce the modal message
- hides all the other page content from assistive technologies using `aria-hidden="true"`

This way, even if users miss the speak message, the warning is actually the only
perceivable content in the page.

Fixes #42110.

Built from https://develop.svn.wordpress.org/trunk@41876


git-svn-id: http://core.svn.wordpress.org/trunk@41710 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Andrea Fercia
2017-10-16 17:59:52 +00:00
parent e362e61ae5
commit 4085a1b266
6 changed files with 83 additions and 27 deletions

View File

@@ -292,13 +292,15 @@ if ( ! in_array( 'plugin_editor_notice', $dismissed_pointers, true ) ) :
$return_url = admin_url( '/' );
}
?>
<div id="file-editor-warning" class="notification-dialog-wrap file-editor-warning hide-if-no-js">
<div id="file-editor-warning" class="notification-dialog-wrap file-editor-warning hide-if-no-js hidden">
<div class="notification-dialog-background"></div>
<div class="notification-dialog" role="dialog" aria-labelledby="file-editor-warning-title" tabindex="0">
<div class="notification-dialog">
<div class="file-editor-warning-content">
<h1 id="file-editor-warning-title"><?php _e( 'Heads up!' ); ?></h1>
<p><?php _e( 'You appear to be making direct edits to your plugin in the WordPress dashboard. We recommend that you don&#8217;t! Editing plugins directly may introduce incompatibilities that break your theme or other plugins, and can leave you unable to log back in to WordPress and undo changes.' ); ?></p>
<p><?php _e( 'If you absolutely have to edit this plugin, create a copy with a new name and hang on to the original version, so you can re-enable a functional version if something goes wrong.' ); ?></p>
<div class="file-editor-warning-message">
<h1><?php _e( 'Heads up!' ); ?></h1>
<p><?php _e( 'You appear to be making direct edits to your plugin in the WordPress dashboard. We recommend that you don&#8217;t! Editing plugins directly may introduce incompatibilities that break your theme or other plugins, and can leave you unable to log back in to WordPress and undo changes.' ); ?></p>
<p><?php _e( 'If you absolutely have to edit this plugin, create a copy with a new name and hang on to the original version, so you can re-enable a functional version if something goes wrong.' ); ?></p>
</div>
<p>
<a class="button file-editor-warning-go-back" href="<?php echo esc_url( $return_url ); ?>"><?php _e( 'Go back' ); ?></a>
<button type="button" class="file-editor-warning-dismiss button button-primary"><?php _e( 'I understand' ); ?></button>