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