キャプション付きの画像が追加されたときに生成されるHTMLに新しいクラスをどのように追加しますか?
たとえば、これから:
<div id="attachment_xyz" class="wp-caption alignleft"...
これに:
<div id="attachment_xyz" class="wp-caption alignleft my_new_class"...
この場合、my_new_classを追加します。
ありがとう、スコット
この答えから に適応
このコードをあなたのfunctions.phpファイルに追加してください:
add_action( 'after_setup_theme', 'wpse_74735_replace_wp_caption_shortcode' );
/**
* Replace the default caption shortcode handler.
*
* @return void
*/
function wpse_74735_replace_wp_caption_shortcode() {
remove_shortcode( 'caption', 'img_caption_shortcode' );
remove_shortcode( 'wp_caption', 'img_caption_shortcode' );
add_shortcode( 'caption', 'wpse_74735_caption_shortcode' );
add_shortcode( 'wp_caption', 'wpse_74735_caption_shortcode' );
}
/**
* Add the new class to the caption.
*
* @param array $attr Shortcode attributes
* @param string $content Caption text
* @return string
*/
function wpse_74735_caption_shortcode( $attr, $content = NULL )
{
$caption = img_caption_shortcode( $attr, $content );
$caption = str_replace( 'class="wp-caption', 'class="wp-caption my_new_class', $caption );
return $caption;
}
Wordpress 4.9では、align属性にクラスを書くことができます。このようにキャプションに全角を追加しました。
[caption id="attachment_11537" align="aligncenter full-width" width="1170"]<img src="http://pappmaskin.no/wp-content/2016/03/IMG_5199-1920x712.png" alt="" width="1170" height="434" class="size-large wp-image-11537" /> Fem øl takk[/caption]
出力(jetpackフォトンをオンにした状態):
<figure id="attachment_11537" style="max-width: 1170px" class="wp-caption aligncenter full-width"><img data-attachment-id="11537" data-permalink="http://pappmaskin.no/?attachment_id=11537" data-orig-file="https://i0.wp.com/pappmaskin.no/wp-content/2016/03/IMG_5199.png?fit=7723%2C2863" data-orig-size="7723,2863" data-comments-opened="1" data-image-meta="{"aperture":"0","credit":"","camera":"","caption":"","created_timestamp":"0","copyright":"","focal_length":"0","iso":"0","shutter_speed":"0","title":"","orientation":"0"}" data-image-title="Illustrasjon: Morten Skogly" data-image-description="" data-medium-file="https://i0.wp.com/pappmaskin.no/wp-content/2016/03/IMG_5199.png?fit=640%2C237" data-large-file="https://i0.wp.com/pappmaskin.no/wp-content/2016/03/IMG_5199.png?fit=1170%2C434" src="https://i0.wp.com/pappmaskin.no/wp-content/2016/03/IMG_5199.png?resize=1170%2C434" alt="" class="size-large wp-image-11537" srcset="https://i0.wp.com/pappmaskin.no/wp-content/2016/03/IMG_5199.png?resize=1920%2C712 1920w, https://i0.wp.com/pappmaskin.no/wp-content/2016/03/IMG_5199.png?resize=310%2C115 310w, https://i0.wp.com/pappmaskin.no/wp-content/2016/03/IMG_5199.png?resize=640%2C237 640w, https://i0.wp.com/pappmaskin.no/wp-content/2016/03/IMG_5199.png?resize=768%2C285 768w, https://i0.wp.com/pappmaskin.no/wp-content/2016/03/IMG_5199.png?w=2340 2340w, https://i0.wp.com/pappmaskin.no/wp-content/2016/03/IMG_5199.png?w=3510 3510w" sizes="(max-width: 1170px) 100vw, 1170px" width="684" height="254"><figcaption class="wp-caption-text">Fem øl takk</figcaption></figure>