Easy Digital Downloads + EDD Social Discounts. Remove sharing buttons for free downloads

gistfile1.php

<?php

/**
 * EDD Social Discounts - remove sharing buttons for free downloads
 */
function sumobi_edd_social_discount_display_share_buttons() {

	if ( edd_is_free_download( get_the_ID() ) ) {
		return;
	}

	$edd_social_discounts = edd_social_discounts();
	$display              = edd_get_option( 'edd_sd_display_services', 'after' );

	// don't automatically output the sharing services
	if ( 'none' != $display ) {
		// load sharing box by default after download content 
		if ( 'after' == $display ) {
			add_action( 'edd_after_download_content', array( $edd_social_discounts, 'load_share_box' ) );
		}
		// load before content
		elseif ( 'before' == $display ) {
			add_action( 'edd_before_download_content', array( $edd_social_discounts, 'load_share_box' ) );
		}
	}
}


$edd_social_discounts = edd_social_discounts();

// remove plugin's display_share_buttons() function
remove_action( 'template_redirect', array( $edd_social_discounts, 'display_share_buttons' ) );

// add our new function
add_action( 'template_redirect', 'sumobi_edd_social_discount_display_share_buttons' );