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Accessibility: Themes: Use a default empty alt attribute for the non-linked custom logo on the home page.

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After [48039] it became clear that the non-linked custom logo on the home page needs an empty alt attribute, as in most of the cases the logo is decorative and doesn't need its purpose to be described.

This change outputs an empty alt attribute by default for the custom logo on the home page. If necessary, it is possible to use the new 'get_custom_logo_image_attributes' filter to manipulate the default attributes for the logo image and set an alt attribute.

Props FlorianBrinkmann, Soean, sabernhardt, audrasjb, SergeyBiryukov, samful, knutsp.
See #36640.
Fixes #37011.


git-svn-id: https://develop.svn.wordpress.org/trunk@48283 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Andrea Fercia 2020-07-03 12:56:43 +00:00
parent 65a6412681
commit 88c91eeaa6
1 changed files with 15 additions and 7 deletions
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22
src/wp-includes/general-template.php
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@ -981,13 +981,21 @@ function get_custom_logo( $blog_id = 0 ) {
'class' => 'custom-logo',
);
/*
* If the logo alt attribute is empty, get the site title and explicitly pass it
* to the attributes used by wp_get_attachment_image().
*/
$image_alt = get_post_meta( $custom_logo_id, '_wp_attachment_image_alt', true );
if ( empty( $image_alt ) ) {
$custom_logo_attr['alt'] = get_bloginfo( 'name', 'display' );
if ( is_front_page() ) {
/*
* If on the home page, set the logo alt attribute to an empty string,
* as the image is decorative and doesn't need its purpose to be described.
*/
$custom_logo_attr['alt'] = '';
} else {
/*
* If the logo alt attribute is empty, get the site title and explicitly pass it
* to the attributes used by wp_get_attachment_image().
*/
$image_alt = get_post_meta( $custom_logo_id, '_wp_attachment_image_alt', true );
if ( empty( $image_alt ) ) {
$custom_logo_attr['alt'] = get_bloginfo( 'name', 'display' );
}
}
/**