theme_switcher_markup function

gistfile1.txt

function theme_switcher_markup( $style = 'text', $instance = array() ) {

	if ( ! $theme_data = wp_cache_get('themes-data', 'advanced-theme-switcher') ) {

    	$themes = (array) get_themes();
		if (!$themes) return;
	
    	if ( is_multisite() ) {
        	//$allowed_themes = (array) get_site_option( 'allowedthemes' );
			$allowed_themes = WP_Theme::get_allowed();

        	foreach( $themes as $name => $theme ) {
            	if ( !isset( $allowed_themes[ esc_html( $theme['Stylesheet'] ) ] ) ) {
                	unset( $themes[$name] );
            	}
        	}
    	}

		$theme_names = array_keys( (array) $themes );

		foreach ( $theme_names as $theme_name ) {

			/* Skip unpublished themes. */
			if ( empty( $theme_name ) || isset( $themes[$theme_name]['Status'] ) && $themes[$theme_name]['Status'] != 'publish' )
				continue;

			$theme_data[$theme_name] = add_query_arg( 'theme-preview', urlencode( $theme_name ), get_option('home') );
		}
		wp_cache_set('themes-data', $theme_data, 'advanced-theme-switcher');
	}
	
	ksort( $theme_data );

	$ts = '<ul class="advanced-theme-switcher-container">'."\n";

	if ( $style == 'dropdown' )
		$ts .= '<li>'."\n\t" . '<select class="advanced-theme-switcher-themes" onchange="location.href=this.options[this.selectedIndex].value;">'."\n";

    $default_theme = get_current_theme();
	$current_theme = $this->get_current_theme_name();

	foreach ( $theme_data as $theme_name => $url ) {
		if ( !empty( $current_theme ) && $current_theme == $theme_name || empty( $current_theme ) && ( $theme_name == $default_theme ) ) {
			if ($default_theme == $theme_name)
				$pattern = ( 'dropdown' == $style ) ? '<option value="%1$s" selected="selected">%2$s *</option>' : '<li>%2$s *</li>';
			else
				$pattern = ( 'dropdown' == $style ) ? '<option value="%1$s" selected="selected">%2$s</option>' : '<li>%2$s</li>';
		} else if ($default_theme == $theme_name) {
			$pattern = ( 'dropdown' == $style ) ? '<option value="%1$s">%2$s *</option>' : '<li><a href="%1$s">%2$s</a> *</li>';
		} else {
			$pattern = ( 'dropdown' == $style ) ? '<option value="%1$s">%2$s</option>' : '<li><a href="%1$s">%2$s</a></li>';
		}
		$ts .= sprintf( $pattern, esc_attr( $url ), esc_html( $theme_name ) );
	}

	if ( 'dropdown' == $style ) {
		$ts .= '</select>' . "\n" . '</li>' . "\n";
	}
	$ts .= '</ul>';
	//$ts .= "<p>* = ". __('Current theme', 'advanced-theme-switcher') ."</p>";
	return $ts;
}