<?php
if( ! class_exists('acf_field') ) :
class acf_field {
// vars
var $name = '',
$label = '',
$category = 'basic',
$defaults = array(),
$l10n = array(),
$public = true;
/*
* __construct
*
* This function will initialize the field type
*
* @type function
* @date 5/03/2014
* @since 5.0.0
*
* @param n/a
* @return n/a
*/
function __construct() {
// initialize
$this->initialize();
// register info
acf_register_field_type_info(array(
'label' => $this->label,
'name' => $this->name,
'category' => $this->category,
'public' => $this->public
));
// value
$this->add_field_filter('acf/load_value', array($this, 'load_value'), 10, 3);
$this->add_field_filter('acf/update_value', array($this, 'update_value'), 10, 3);
$this->add_field_filter('acf/format_value', array($this, 'format_value'), 10, 3);
$this->add_field_filter('acf/validate_value', array($this, 'validate_value'), 10, 4);
$this->add_field_action('acf/delete_value', array($this, 'delete_value'), 10, 3);
// field
$this->add_field_filter('acf/validate_field', array($this, 'validate_field'), 10, 1);
$this->add_field_filter('acf/load_field', array($this, 'load_field'), 10, 1);
$this->add_field_filter('acf/update_field', array($this, 'update_field'), 10, 1);
$this->add_field_filter('acf/duplicate_field', array($this, 'duplicate_field'), 10, 1);
$this->add_field_action('acf/delete_field', array($this, 'delete_field'), 10, 1);
$this->add_field_action('acf/render_field', array($this, 'render_field'), 9, 1);
$this->add_field_action('acf/render_field_settings', array($this, 'render_field_settings'), 9, 1);
$this->add_field_filter('acf/prepare_field', array($this, 'prepare_field'), 10, 1);
$this->add_field_filter('acf/translate_field', array($this, 'translate_field'), 10, 1);
// input actions
$this->add_action("acf/input/admin_enqueue_scripts", array($this, 'input_admin_enqueue_scripts'), 10, 0);
$this->add_action("acf/input/admin_head", array($this, 'input_admin_head'), 10, 0);
$this->add_action("acf/input/form_data", array($this, 'input_form_data'), 10, 1);
$this->add_filter("acf/input/admin_l10n", array($this, 'input_admin_l10n'), 10, 1);
$this->add_action("acf/input/admin_footer", array($this, 'input_admin_footer'), 10, 1);
// field group actions
$this->add_action("acf/field_group/admin_enqueue_scripts", array($this, 'field_group_admin_enqueue_scripts'), 10, 0);
$this->add_action("acf/field_group/admin_head", array($this, 'field_group_admin_head'), 10, 0);
$this->add_action("acf/field_group/admin_footer", array($this, 'field_group_admin_footer'), 10, 0);
}
/*
* initialize
*
* This function will initialize the field type
*
* @type function
* @date 27/6/17
* @since 5.6.0
*
* @param n/a
* @return n/a
*/
function initialize() {
/* do nothing */
}
/*
* add_filter
*
* This function checks if the function is_callable before adding the filter
*
* @type function
* @date 5/03/2014
* @since 5.0.0
*
* @param $tag (string)
* @param $function_to_add (string)
* @param $priority (int)
* @param $accepted_args (int)
* @return n/a
*/
function add_filter( $tag = '', $function_to_add = '', $priority = 10, $accepted_args = 1 ) {
// bail early if no callable
if( !is_callable($function_to_add) ) return;
// add
add_filter( $tag, $function_to_add, $priority, $accepted_args );
}
/*
* add_field_filter
*
* This function will add a field type specific filter
*
* @type function
* @date 29/09/2016
* @since 5.4.0
*
* @param $tag (string)
* @param $function_to_add (string)
* @param $priority (int)
* @param $accepted_args (int)
* @return n/a
*/
function add_field_filter( $tag = '', $function_to_add = '', $priority = 10, $accepted_args = 1 ) {
// append
$tag .= '/type=' . $this->name;
// add
$this->add_filter( $tag, $function_to_add, $priority, $accepted_args );
}
/*
* add_action
*
* This function checks if the function is_callable before adding the action
*
* @type function
* @date 5/03/2014
* @since 5.0.0
*
* @param $tag (string)
* @param $function_to_add (string)
* @param $priority (int)
* @param $accepted_args (int)
* @return n/a
*/
function add_action( $tag = '', $function_to_add = '', $priority = 10, $accepted_args = 1 ) {
// bail early if no callable
if( !is_callable($function_to_add) ) return;
// add
add_action( $tag, $function_to_add, $priority, $accepted_args );
}
/*
* add_field_action
*
* This function will add a field type specific filter
*
* @type function
* @date 29/09/2016
* @since 5.4.0
*
* @param $tag (string)
* @param $function_to_add (string)
* @param $priority (int)
* @param $accepted_args (int)
* @return n/a
*/
function add_field_action( $tag = '', $function_to_add = '', $priority = 10, $accepted_args = 1 ) {
// append
$tag .= '/type=' . $this->name;
// add
$this->add_action( $tag, $function_to_add, $priority, $accepted_args );
}
/*
* validate_field
*
* This function will append default settings to a field
*
* @type filter ("acf/validate_field/type={$this->name}")
* @since 3.6
* @date 23/01/13
*
* @param $field (array)
* @return $field (array)
*/
function validate_field( $field ) {
// bail early if no defaults
if( !is_array($this->defaults) ) return $field;
// merge in defaults but keep order of $field keys
foreach( $this->defaults as $k => $v ) {
if( !isset($field[ $k ]) ) $field[ $k ] = $v;
}
// return
return $field;
}
/*
* admin_l10n
*
* This function will append l10n text translations to an array which is later passed to JS
*
* @type filter ("acf/input/admin_l10n")
* @since 3.6
* @date 23/01/13
*
* @param $l10n (array)
* @return $l10n (array)
*/
function input_admin_l10n( $l10n ) {
// bail early if no defaults
if( empty($this->l10n) ) return $l10n;
// append
$l10n[ $this->name ] = $this->l10n;
// return
return $l10n;
}
}
endif; // class_exists check
?>