<?php
/**
 * Select control
 */
if (class_exists('WP_Customize_Control')) {

	class DropdownSidebars extends WP_Customize_Control {
		public $type = 'dropdown';
		
		public function render_content() {
			global $wp_registered_sidebars;
			$name = "_options-sidebar-$this->id";

			$sidebars = array();
			$sidebars['0'] = esc_html__( '&mdash; Select &mdash;', 'fo' );
			?>
		    <label>
	            <span class="customize-category-select-control"><?php echo esc_html( $this->label ); ?></span>
	            <select name="<?php themesflat_esc_attr( $name ) ?>" <?php $this->link(); ?>>
	                <?php
	                    foreach ( $wp_registered_sidebars as $sidebar ) {
			                $selected = ( strcmp($this->value(),$sidebar['id'])==0 ? 1 : 0 );
	                    	printf('<option value="%1$s" %2$s>%3$s</option>', $sidebar['id'], selected($selected), $sidebar['name']);
						}
	                ?>
	            </select>
	        </label>
			<?php 	

			return $sidebars;
		}
	}
}