Remind Editors to Add Captions to Videos
Shows a warning after saving when a post contains a Video block without a captions or subtitles track, so videos are not published without captions by accident.
Opens WPIDE on
Code
add_action( 'save_post', function ( $post_id, $post ) {
if ( wp_is_post_revision( $post_id ) || ! has_block( 'core/video', $post ) || ! current_user_can( 'edit_post', $post_id ) ) {
return;
}
$missing = 0;
foreach ( parse_blocks( $post->post_content ) as $block ) {
if ( 'core/video' === $block['blockName'] && empty( $block['attrs']['tracks'] ) ) {
$missing++;
}
}
if ( $missing ) {
set_transient( 'wpide_caption_notice_' . get_current_user_id(), $missing, MINUTE_IN_SECONDS );
}
}, 20, 2 );
add_action( 'admin_notices', function () {
$key = 'wpide_caption_notice_' . get_current_user_id();
$missing = (int) get_transient( $key );
if ( ! $missing ) {
return;
}
delete_transient( $key );
printf( '<div class="notice notice-warning is-dismissible"><p>%s</p></div>', esc_html( sprintf( '%d video(s) in this post have no captions track. Add one in the Video block settings under "Text tracks".', $missing ) ) );
} );Notes
Add captions in the Video block settings under "Text tracks"; embedded YouTube and Vimeo videos manage captions on their own platform.
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