Taxonomy Dropdown Control for WordPress Theme Customizer

functions.php

<?php

add_action('customize_register', 'my_customize_register');
function my_customize_register($wp_customize){
require_once(TEMPLATEPATH . '/class/wp_customizer_taxonomy_dropdown.php');
 
$wp_customize->add_section('my_theme_blog_featured_categories', array(
	'title' => __('Blog: Featured Categories'),
	'priority' => 36,
));

$wp_customize->add_setting('featured_category_1', array(
	'default' => get_option('default_category', ''),
));

$wp_customize->add_control( new Taxonomy_Dropdown_Customize_Control($wp_customize, 'featured_category_1', array(
	'label' => __('Featured Area 1'),
	'section' => 'my_theme_blog_featured_categories',
	'settings' => 'featured_category_1',
	'args' => array(), // arguments for wp_dropdown_categories function...optional. array('taxonomy' => 'my_taxonomy')
)));
 
return $wp_customize;
}
?>

wp_customizer_taxonomy_dropdown.php

<?php 
 
class Taxonomy_Dropdown_Customize_Control extends WP_Customize_Control {
    public $type = 'taxonomy_dropdown';
    var $defaults = array();
    public $args = array();
 
    public function render_content(){
        // Call wp_dropdown_cats to ad data-customize-setting-link to select tag
        add_action('wp_dropdown_cats', array($this, 'wp_dropdown_cats'));
 
        // Set some defaults for our control
        $this->defaults = array(
            'show_option_none' => __('None'),
            'orderby' => 'name', 
            'hide_empty' => 0,
            'id' => $this->id,
            'selected' => $this->value(),
        );
 
        // Parse defaults against what the user submitted
        $r = wp_parse_args($this->args, $this->defaults);
 
?>
	<label><span class="customize-control-title"><?php echo esc_html($this->label); ?></span></label>
<?php  
        // Generate our select box
        wp_dropdown_categories($r);
    }
 
    function wp_dropdown_cats($output){
        // Search for <select and replace it with <select data-customize=setting-link="my_control_id"
        $output = str_replace('<select', '<select ' . $this->get_link(), $output);
        return $output;
    }
}
?>

Thanks for publishing (y)