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* Generates the HTML for a metabox tab.
class WPSEO_Metabox_Form_Tab implements WPSEO_Metabox_Tab {
* Additional tab content class.
* Additional tab link class.
* Title attribute on the link span.
* Arial label attribute on the link span.
private $link_aria_label;
* Does it contain a single tab.
* @param string $name The name of the tab, used as an identifier in the html.
* @param string $content The tab content.
* @param string $link_content The text content of the tab link.
* @param array $options Optional link attributes.
public function __construct( $name, $content, $link_content, array $options = [] ) {
$options = array_merge( $default_options, $options );
$this->content = $content;
$this->link_content = $link_content;
$this->tab_class = $options['tab_class'];
$this->link_class = $options['link_class'];
$this->link_title = $options['link_title'];
$this->link_aria_label = $options['link_aria_label'];
$this->single = $options['single'];
* Returns the html for the tab link.
$html = '<li class="%1$s%2$s"><a class="wpseo_tablink%3$s" href="#wpseo_%1$s"%4$s%5$s>%6$s</a></li>';
$html = '<li class="%1$s%2$s"><span class="wpseo_tablink%3$s"%4$s%5$s>%6$s</span></li>';
( $this->tab_class !== '' ) ? ' ' . esc_attr( $this->tab_class ) : '',
( $this->link_class !== '' ) ? ' ' . esc_attr( $this->link_class ) : '',
( $this->link_title !== '' ) ? ' title="' . esc_attr( $this->link_title ) . '"' : '',
( $this->link_aria_label !== '' ) ? ' aria-label="' . esc_attr( $this->link_aria_label ) . '"' : '',
* Returns the html for the tab content.
public function content() {
'<div id="%1$s" class="wpseotab %2$s">%3$s</div>',
esc_attr( 'wpseo_' . $this->name ),