Mini Shell
<?php
/*
* ACF Widget Form Class
*
* All the logic for adding fields to widgets
*
* @class acf_form_widget
* @package ACF
* @subpackage Forms
*/
if ( ! class_exists( 'acf_form_widget' ) ) :
class acf_form_widget {
/*
* __construct
*
* This function will setup the class functionality
*
* @type function
* @date 5/03/2014
* @since 5.0.0
*
* @param n/a
* @return n/a
*/
function __construct() {
// vars
$this->preview_values = array();
$this->preview_reference = array();
$this->preview_errors = array();
// actions
add_action( 'admin_enqueue_scripts', array( $this, 'admin_enqueue_scripts' ) );
add_action( 'in_widget_form', array( $this, 'edit_widget' ), 10, 3 );
add_action( 'acf/validate_save_post', array( $this, 'acf_validate_save_post' ), 5 );
// filters
add_filter( 'widget_update_callback', array( $this, 'save_widget' ), 10, 4 );
}
/*
* admin_enqueue_scripts
*
* This action is run after post query but before any admin script / head actions.
* It is a good place to register all actions.
*
* @type action (admin_enqueue_scripts)
* @date 26/01/13
* @since 3.6.0
*
* @param N/A
* @return N/A
*/
function admin_enqueue_scripts() {
// validate screen
if ( acf_is_screen( 'widgets' ) || acf_is_screen( 'customize' ) ) {
// valid
} else {
return;
}
// load acf scripts
acf_enqueue_scripts();
// actions
add_action( 'acf/input/admin_footer', array( $this, 'admin_footer' ), 1 );
}
/*
* acf_validate_save_post
*
* This function will loop over $_POST data and validate
*
* @type action 'acf/validate_save_post' 5
* @date 7/09/2016
* @since 5.4.0
*
* @param n/a
* @return n/a
*/
function acf_validate_save_post() {
// bail ealry if not widget
if ( ! isset( $_POST['_acf_widget_id'] ) ) {
return;
}
// vars
$id = $_POST['_acf_widget_id'];
$number = $_POST['_acf_widget_number'];
$prefix = $_POST['_acf_widget_prefix'];
// validate
acf_validate_values( $_POST[ $id ][ $number ]['acf'], $prefix );
}
/*
* edit_widget
*
* This function will render the fields for a widget form
*
* @type function
* @date 11/06/2014
* @since 5.0.0
*
* @param $widget (object)
* @param $return (null)
* @param $instance (object)
* @return $post_id (int)
*/
function edit_widget( $widget, $return, $instance ) {
// vars
$post_id = 0;
$prefix = 'widget-' . $widget->id_base . '[' . $widget->number . '][acf]';
// get id
if ( $widget->number !== '__i__' ) {
$post_id = "widget_{$widget->id}";
}
// get field groups
$field_groups = acf_get_field_groups(
array(
'widget' => $widget->id_base,
)
);
// render
if ( ! empty( $field_groups ) ) {
// render post data
acf_form_data(
array(
'screen' => 'widget',
'post_id' => $post_id,
'widget_id' => 'widget-' . $widget->id_base,
'widget_number' => $widget->number,
'widget_prefix' => $prefix,
)
);
// wrap
echo '<div class="acf-widget-fields acf-fields -clear">';
// loop
foreach ( $field_groups as $field_group ) {
// load fields
$fields = acf_get_fields( $field_group );
// bail if not fields
if ( empty( $fields ) ) {
continue;
}
// change prefix
acf_prefix_fields( $fields, $prefix );
// render
acf_render_fields( $fields, $post_id, 'div', $field_group['instruction_placement'] );
}
// wrap
echo '</div>';
// jQuery selector looks odd, but is necessary due to WP adding an incremental number into the ID
// - not possible to find number via PHP parameters
if ( $widget->updated ) : ?>
<script type="text/javascript">
(function($) {
acf.doAction('append', $('[id^="widget"][id$="<?php echo $widget->id; ?>"]') );
})(jQuery);
</script>
<?php
endif;
}
}
/*
* save_widget
*
* This function will hook into the widget update filter and save ACF data
*
* @type function
* @date 27/05/2015
* @since 5.2.3
*
* @param $instance (array) widget settings
* @param $new_instance (array) widget settings
* @param $old_instance (array) widget settings
* @param $widget (object) widget info
* @return $instance
*/
function save_widget( $instance, $new_instance, $old_instance, $widget ) {
// validate nonce if we're not a REST API request.
// the $_POST object is not available to us to validate if we're in a REST API call.
if ( ! ( function_exists( 'wp_is_json_request' ) && wp_is_json_request() ) ) {
if ( ! acf_verify_nonce( 'widget' ) ) {
return $instance;
}
}
// bail early if not valid (!customize + acf values + nonce).
if ( isset( $_POST['wp_customize'] ) || ! isset( $new_instance['acf'] ) ) {
return $instance;
}
// save
acf_save_post( "widget_{$widget->id}", $new_instance['acf'] );
// return
return $instance;
}
/*
* admin_footer
*
* This function will add some custom HTML to the footer of the edit page
*
* @type function
* @date 11/06/2014
* @since 5.0.0
*
* @param n/a
* @return n/a
*/
function admin_footer() {
?>
<script type="text/javascript">
(function($) {
// vars
acf.set('post_id', 'widgets');
// Only initialize visible fields.
acf.addFilter('find_fields', function( $fields ){
// not templates
$fields = $fields.not('#available-widgets .acf-field');
// not widget dragging in
$fields = $fields.not('.widget.ui-draggable-dragging .acf-field');
// return
return $fields;
});
// on publish
$('#widgets-right').on('click', '.widget-control-save', function( e ){
// vars
var $button = $(this);
var $form = $button.closest('form');
// validate
var valid = acf.validateForm({
form: $form,
event: e,
reset: true
});
// if not valid, stop event and allow validation to continue
if( !valid ) {
e.preventDefault();
e.stopImmediatePropagation();
}
});
// show
$('#widgets-right').on('click', '.widget-top', function(){
var $widget = $(this).parent();
if( $widget.hasClass('open') ) {
acf.doAction('hide', $widget);
} else {
acf.doAction('show', $widget);
}
});
$(document).on('widget-added', function( e, $widget ){
// - use delay to avoid rendering issues with customizer (ensures div is visible)
setTimeout(function(){
acf.doAction('append', $widget );
}, 100);
});
})(jQuery);
</script>
<?php
}
}
new acf_form_widget();
endif;
?>
Zerion Mini Shell 1.0