Broadcast

The following snippet shows how to access and modify the Broadcast meta box, adding the blog’s ID after each blog name in the list.

/**
	@brief		Add the blog ID to the blog list in the Broadcast meta box.
	@since		2017-05-16
**/
function my_threewp_broadcast_prepare_meta_box( $action )
{
	$mbd = $action->meta_box_data;
	
	// Retrieve the form for the meta_box_data.
	if ( ! isset( $mbd->form ) )
		return;
	$form = $mbd->form;
	
	// Retrieve the blogs fieldset (=checkboxes).
	$blogs = $form->checkboxes( 'blogs' );
	
	if ( ! $blogs )
		return;
	
	// Retrieve the blogs, which are inputs in the blogs fieldset.
	$blog_inputs = $blogs->inputs;
	foreach( $blog_inputs as $blog_input )
	{
		$old_label = $blog_input->get_label();
		// The label is an HTML element, from the Plainview SDK.
		// Extract the content.
		$old_label = $old_label->content;
		
		// The name of the input is blog_XX
		$blog_id = $blog_input->get_name();
		$blog_id = str_replace( 'blogs_', '', $blog_id );
		
		// Add a blog ID to the label.
		$new_label = $old_label . ' (' . $blog_id . ')';
		
		// And change the label.
		$blog_input->label( $new_label );
	}
}
add_action( 'threewp_broadcast_prepare_meta_box', 'my_threewp_broadcast_prepare_meta_box' );