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✏️ Editing: widget-options.class.php

<?php if ( ! defined( 'ABSPATH' ) ) { die; } // Cannot access directly.
/**
 *
 * Widgets Class
 *
 * @since 1.0.0
 * @version 1.0.0
 *
 */
if ( ! class_exists( 'CSF_Widget' ) ) {
  class CSF_Widget extends WP_Widget {

// constans
    public $unique  = '';
    public $args    = array(
      'title'       => '',
      'classname'   => '',
      'description' => '',
      'width'       => '',
      'class'       => '',
      'fields'      => array(),
      'defaults'    => array(),
    );

public function __construct( $key, $params ) {

$widget_ops  = array();
      $control_ops = array();

$this->unique = $key;
      $this->args   = apply_filters( "csf_{$this->unique}_args", wp_parse_args( $params, $this->args ), $this );

// Set control options
      if ( ! empty( $this->args['width'] ) ) {
        $control_ops['width'] = esc_attr( $this->args['width'] );
      }

// Set widget options
      if ( ! empty( $this->args['description'] ) ) {
        $widget_ops['description'] = esc_attr( $this->args['description'] );
      }

if ( ! empty( $this->args['classname'] ) ) {
        $widget_ops['classname'] = esc_attr( $this->args['classname'] );
      }

// Set filters
      $widget_ops  = apply_filters( "csf_{$this->unique}_widget_ops", $widget_ops, $this );
      $control_ops = apply_filters( "csf_{$this->unique}_control_ops", $control_ops, $this );

parent::__construct( $this->unique, esc_attr( $this->args['title'] ), $widget_ops, $control_ops );

}

// Register widget with WordPress
    public static function instance( $key, $params = array() ) {
      return new self( $key, $params );
    }

// Front-end display of widget.
    public function widget( $args, $instance ) {
      call_user_func( $this->unique, $args, $instance );
    }

// get default value
    public function get_default( $field ) {

$default = ( isset( $field['default'] ) ) ? $field['default'] : '';
      $default = ( isset( $this->args['defaults'][$field['id']] ) ) ? $this->args['defaults'][$field['id']] : $default;

return $default;

}

// get widget value
    public function get_widget_value( $instance, $field ) {

$default = ( isset( $field['id'] ) ) ? $this->get_default( $field ) : '';
      $value   = ( isset( $field['id'] ) && isset( $instance[$field['id']] ) ) ? $instance[$field['id']] : $default;

return $value;

}

// Back-end widget form.
    public function form( $instance ) {

if ( ! empty( $this->args['fields'] ) ) {

$class = ( $this->args['class'] ) ? ' '. $this->args['class'] : '';

echo '<div class="csf csf-widgets csf-fields'. esc_attr( $class ) .'">';

foreach ( $this->args['fields'] as $field ) {

$field_unique = '';

if ( ! empty( $field['id'] ) ) {

$field_unique = 'widget-' . $this->unique . '[' . $this->number . ']';

if ( $field['id'] === 'title' ) {
              $field['attributes']['id'] = 'widget-'. $this->unique .'-'. $this->number .'-title';
            }

$field['default'] = $this->get_default( $field );

}

CSF::field( $field, $this->get_widget_value( $instance, $field ), $field_unique );

}

echo '</div>';

}

// Sanitize widget form values as they are saved.
    public function update( $new_instance, $old_instance ) {

// auto sanitize
      foreach ( $this->args['fields'] as $field ) {
        if ( ! empty( $field['id'] ) && ( ! isset( $new_instance[$field['id']] ) || is_null( $new_instance[$field['id']] ) ) ) {
          $new_instance[$field['id']] = '';
        }
      }

$new_instance = apply_filters( "csf_{$this->unique}_save", $new_instance, $this->args, $this );

do_action( "csf_{$this->unique}_save_before", $new_instance, $this->args, $this );

return $new_instance;

}
  }
}

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