Oxygenbuilder2.0 Add "Edit with Oxygen" button to page, post, ct_template and others

oxygenbuilder2_add_edit_with_oxygen.php

<?php
/**
 * Add an 'edit with Oxygen' button on set posttypes, use filter ct_post_types to add to the array;
 */

// add a filter to add my cpt's
add_filter( 'ct_post_types', 'example_add_my_custom_post_types' , 10 ,1 );

// merge arrays
function example_add_my_custom_post_types( $post_types ) {
	// add these post-types:
	$new_post_types = array( 'books' );
	return array_merge( $post_types, $new_post_types) ;
}

// add action to current_screen because that's where we will get info on the current post_type
add_action('current_screen' , 'ct_add_action_edit_oxygen' , 10, 1);

/**
 * Add the edit with oxygen action on filtered my_post_types
 * @return [type] [description]
 */
function ct_add_action_edit_oxygen () {

	// set the baseline for the post_types where we want to add the 'edit with oxygen'
	$my_post_types = apply_filters( 'ct_post_types', array( 'page', 'post', 'ct_template' ), $array = array() );

	// get current screen info
	$current_screen = get_current_screen();

	// if current post_type is found in our set $my_post_types
	if ( in_array($current_screen->post_type, $my_post_types)  ) {
		// either one is good, both is better
		add_filter( "post_row_actions" , 'show_post_row_actions', 10, 2 );
		add_filter( "page_row_actions" , 'show_post_row_actions', 10, 2 );
	}

}

/**
 * Filter that adds an action-button to the row_actions to enable direct editing
 * @param  [type] $actions [description]
 * @param  [type] $post    [description]
 * @return [type]          [description]
 */
function show_post_row_actions ( $actions , $post ) {
	$meta = get_post_meta($post->ID);
	$color = array_key_exists( 'ct_builder_shortcodes', $meta)?'green':'lightgrey';

	$actions['oxygen'] = '<div style="display:inline-block;border:2px solid '.$color.';border-radius:50%;width:3px;height:3px;margin:2px;margin-right:5px;background-color:'.$color.';"></div><a href="'.get_permalink($post->ID).'?ct_builder=true&ct_inner=true">'.__('Edit with Oxygen', 'textdomain').'</a>';
	//var_dump( $post);
	return $actions;
}