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<?php
/*
* Conditional class
*
* Few break-points summarized:
* 1. Wrapping fields when in form
* 2. Filtering AJAX check
* 3. Calling JS
*/
/**
* Conditional class.
*
* Very useful, should be used to finish small tasks for conditional field.
*
* Example:
*
* // Setup field
* global $wpcf;
* $my_field = new WPCF_Conditional();
* $my_field->set($wpcf->post, wpcf_admin_fields_get_field('image'));
*
* // Use it
* $is_valid = $my_field->evaluate();
*
* Generic instance can be found in global $wpcf.
* global $wpcf;
* $wpcf->conditional->set(...);
*
* @since Types 1.2
* @package Types
* @subpackage Classes
* @version 0.1
* @category core
* @author srdjan <srdjan@icanlocalize.com>
*/
class WPCF_Conditional extends WPCF_Field
{
/**
* Holds all processed fields using one instance.
*/
var $collected = null;
/**
* Holds all triggers on which check should fire.
*
* @var type
*/
var $triggers = null;
/**
* Marks if currently processed field is valid.
*
*
* @var type
*/
var $passed = true;
/**
* Trigger CSS class.
* @var type
*/
var $css_class_trigger = 'wpcf-conditional-check-trigger';
/**
* Field CSS class.
* @var type
*/
var $css_class_field = 'wpcf-conditional';
/**
* Evaluate object.
*
* @var type
*/
var $evaluate = null;
function __construct() {
parent::__construct();
}
function set( $post, $cf ) {
parent::set( $post, $cf );
}
/**
* Collect all fields and conditions.
*/
function collect() {
if ( is_null( $this->triggers ) ) {
$this->collected = array();
$this->triggers = array();
$fields = WPCF_Fields::getFields();
if ( is_array( $fields ) && !empty( $fields ) ) {
foreach ( $fields as $f_id => $f ) {
if ( !empty( $f['data']['conditional_display']['conditions'] ) ) {
foreach ( $f['data']['conditional_display']['conditions'] as $condition ) {
$this->collected[$f_id] = $condition;
if ( !empty( $condition['field'] ) ) {
$this->triggers[$condition['field']][$f_id][] = $condition;
}
}
}
}
}
}
}
/**
* Checks if field is conditional.
*
* @param type $field
* @return type
*/
function is_conditional( $field = array() ) {
if ( is_array( $field ) ) {
return !empty( $field['data']['conditional_display']['conditions'] );
} else {
$this->collect();
$field_id = $this->__get_slug_no_prefix( strval( $field ) );
return isset( $this->collected[$field_id] );
}
}
/**
* Checks if field is check trigger.
*
* @param type $field
* @return type
*/
function is_trigger( $field = array() ) {
$this->collect();
return !empty( $this->triggers[$field['id']] );
}
/**
* Enqueues scripts.
*/
function add_js() {
wp_enqueue_script( 'types-conditional' );
}
/**
* Wraps each trigger check field with $this->css_class_trigger
* and corespondive classes.
*
* @param type $element
* @return type
*/
function wrap_trigger( $element = array() ) {
// Set attribute class to $this->css_class_trigger
if ( isset( $element['#attributes']['class'] ) ) {
$element['#attributes']['class'] .= ' ' . $this->css_class_trigger;
} else {
$element['#attributes']['class'] = $this->css_class_trigger;
}
/*
*
* Radios needs per option
*/
if ( $element['#type'] == 'radios'
&& ( isset( $element['#options'] ) && is_array( $element['#options'] )) ) {
foreach ( $element['#options'] as $_k => $_v ) {
if ( isset( $_v['#attributes']['class'] ) ) {
$element['#options'][$_k]['#attributes']['class'] .= ' ' . $this->css_class_trigger;
} else {
$element['#options'][$_k]['#attributes']['class'] = $this->css_class_trigger;
}
}
}
return apply_filters( 'types_conditional_field_trigger', $element, $this );
}
/**
* Wraps each field with $this->css_class_field and corespondive classes.
*
* @param type $element
* @return type
*/
function wrap( $element = array() ) {
if ( !empty( $element ) ) {
$passed = $this->evaluate();
if ( !$passed ) {
$wrap = '<div class="' . $this->css_class_field . ' '
. $this->css_class_field . '-failed" style="display:none;">';
} else {
$wrap = '<div class="' . $this->css_class_field . ' '
. $this->css_class_field . '-passed">';
}
if ( isset( $element['#before'] ) ) {
$element['#before'] = $wrap . $element['#before'];
} else {
$element['#before'] = $wrap;
}
if ( isset( $element['#after'] ) ) {
$element['#after'] = $element['#after'] . '</div>';
} else {
$element['#after'] = '</div>';
}
}
return apply_filters( 'types_conditional_field', $element, $this );
}
/**
* Evaluates if check passed.
*
* @return type
*/
function evaluate() {
WPCF_Loader::loadClass( 'evaluate' );
$this->passed = WPCF_Evaluate::evaluate( $this );
return $this->passed;
}
}