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Filename : wph-widget-class.php
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<?php
// phpcs:disable
/**
* WordPress Widgets Helper Class
*
* https://github.com/sksmatt/WordPress-Widgets-Helper-Class
*
* By @sksmatt | www.mattvarone.com
*
* @package      WordPress
* @subpackage   WPH Widget Class
* @author       Matt Varone
* @license      GPLv2
* @version      1.6
*/

if ( ! class_exists( 'WPH_Widget' ) ) 
{

    class WPH_Widget extends WP_Widget
    {

		public function get_layered_get_categories() {
			global $wpdb;

			$categories = $wpdb->get_results(
				"
			SELECT
				t.term_id AS id,
				t.name    AS post_title,
				t.slug    AS post_url,
				parent    AS parent
			FROM {$wpdb->prefix}terms t
				LEFT JOIN {$wpdb->prefix}term_taxonomy tt
						ON t.term_id = tt.term_id
			WHERE tt.taxonomy = 'product_cat'
			ORDER BY name"
			);

			return $categories;
		}

	    public function get_layered_get_attributes_options() {
		    $attribute_array      = array();
		    $attribute_taxonomies = wc_get_attribute_taxonomies();

			if ( taxonomy_exists( 'product_brand' ) ) {
				$taxonomy = get_taxonomy( 'product_brand' );
				$label   = $taxonomy->labels->singular_name;

				$attribute_array[ sprintf( _x( 'Product %s', 'Product Attribute', 'woocommerce' ), $label ) ] = 'product_brand';
			}

		    if ( $attribute_taxonomies ) {
			    foreach ( $attribute_taxonomies as $tax ) {
				    $attribute_array[ ucfirst( $tax->attribute_name ) ] = $tax->attribute_name;
			    }
		    }

			return $attribute_array;
	    }

		public function get_layered_get_categories_options() {
			$categories_array = array(
				esc_html__( 'All categories', 'woodmart' ) => 'all',
			);

			$categories = $this->get_layered_get_categories();

			if ( ! empty( $categories ) ) {
				foreach ( $categories as $cat ) {
					$title = $cat->post_title;
					$id    = ' (ID:' . $cat->id . ')';
					if ( property_exists( $cat, 'parent' ) && $cat->parent ) {
						$title = $title . $id . ' (Parent ID:' . $cat->parent . ')';
					}
					$categories_array[ $title . $id ] = $cat->id;
				}
			}

			return $categories_array;
		}

		public function is_widget_preview() {
			if ( apply_filters( 'woodmart_hide_content_on_widget_preview', true ) && defined( 'REST_REQUEST' ) && REST_REQUEST ) {
				return true;
			}

			return false;
		}

        /** 
        * Create Widget 
        * 
        * Creates a new widget and sets it's labels, description, fields and options 
        * 
        * @access   public
        * @param    array
        * @return   void
        * @since    1.0
        */

        function create_widget( $args ) {
            // settings some defaults
            $defaults = array( 
                'label'        => '', 
                'description'  => '', 
                'fields'       => array(), 
                'options'      => array(),
                'slug'    => '', 
             );

            // parse and merge args with defaults
            $args = wp_parse_args( $args, $defaults );

            // extract each arg to its own variable
            extract( $args, EXTR_SKIP );            

            // set the widget vars
            $this->slug    = ( $slug ) ? $slug : sanitize_title( $label );
            $this->fields  = $fields;

            // check options
            $this->options = array( 'classname' => $this->slug, 'description' => $description );                        
            if ( ! empty( $options ) ) $this->options = array_merge( $this->options, $options );

            // call WP_Widget to create the widget
            parent::__construct( $this->slug, $label, $this->options );

        }


        /** 
        * Form
        * 
        * Creates the settings form. 
        * 
        * @access   private
        * @param    array
        * @return   void
        * @since    1.0     
        */

        function form( $instance ) {
            $this->instance = $instance;
            echo $this->create_fields(); //Dynamic data escaped while generating the variable.
        }


        /** 
        * Update Fields
        *  
        * @access   private
        * @param    array
        * @param    array
        * @return   array
        * @since    1.0
        */

        function update( $new_instance, $old_instance ) {
            $instance = $old_instance;
            
            $this->before_update_fields();

            foreach ( $this->fields as $key ) {
				if ( isset( $key['id'] ) ) {
					$slug = $key['id'];
				} elseif ( isset( $key['param_name'] ) ) {
					$slug = $key['param_name'];
				} else {
					continue;
				}

				if ( isset( $key['validate'] ) ) {
                    if ( false === $this->validate( $key['validate'], $new_instance[$slug] ) )
                    return $instance;
                }
	
	            if ( isset( $key['filter'] ) ) {
		            $instance[ $slug ] = $this->filter( $key['filter'], $new_instance[ $slug ] );
	            } elseif ( isset( $new_instance[ $slug ] ) ) {
		            if ( is_array( $new_instance[ $slug ] ) ) {
			            $instance[ $slug ] = $new_instance[ $slug ];
		            } else {
			            $instance[ $slug ] = strip_tags( $new_instance[ $slug ] );
		            }
				} else {
					$instance[ $slug ] = false;
				}
			}

            return $this->after_validate_fields( $instance );
        }
        
        
        /** 
        * Before Validate Fields
        *
        * Allows to hook code on the update.
        *  
        * @access   public
        * @param    string
        * @return   string
        * @since    1.6
        */

        function before_update_fields() {
            return;
        }


        /** 
        * After Validate Fields
        * 
        * Allows to modify the output after validating the fields.
        *
        * @access   public
        * @param    string
        * @return   string
        * @since    1.6
        */

        function after_validate_fields( $instance = "" ) {
            return $instance;
        }
        
        
        /** 
        * Validate 
        *  
        * @access   private
        * @param    string
        * @param    string
        * @return   boolean
        * @since    1.0
        */

        function validate( $rules, $value ) {
            $rules = explode( '|', $rules );

            if ( empty( $rules ) || count( $rules ) < 1 )
                return true;

            foreach ( $rules as $rule ) {
                if ( false === $this->do_validation( $rule, $value ) )
                return false;
            }

            return true;
        }


        /** 
        * Filter 
        *  
        * @access   private
        * @param    string
        * @param    string
        * @return   void
        * @since    1.0
        */

        function filter( $filters, $value ) {
            $filters = explode( '|', $filters ); 

            if ( empty( $filters ) || count( $filters ) < 1 )
                return $value;

            foreach ( $filters as $filter ) 
                $value = $this->do_filter( $filter, $value );

            return $value;
        }


        /** 
        * Do Validation Rule
        *  
        * @access   private
        * @param    string
        * @param    string
        * @return   boolean
        * @since    1.0
        */

        function do_validation( $rule, $value = "" )
        {
            switch ( $rule ) {

                case 'alpha':
                    return ctype_alpha( $value );
                break;

                case 'alpha_numeric':
                    return ctype_alnum( $value );
                break;

                case 'alpha_dash':
                    return preg_match( '/^[a-z0-9-_]+$/', $value );
                break;

                case 'numeric':
                    return ctype_digit( $value );
                break;

                case 'integer':
                    return ( bool ) preg_match( '/^[\-+]?[0-9]+$/', $value );
                break;

                case 'boolean':
                    return is_bool( $value );
                break;

                case 'email':
                    return is_email( $value );
                break;

                case 'decimal':
                    return ( bool ) preg_match( '/^[\-+]?[0-9]+\.[0-9]+$/', $value );
                break;

                case 'natural':
                    return ( bool ) preg_match( '/^[0-9]+$/', $value );
                return;

                case 'natural_not_zero':
                    if ( ! preg_match( '/^[0-9]+$/', $value ) ) return false;
                    if ( $value == 0 ) return false;
                    return true;
                return;

                default:
                    if ( method_exists( $this, $rule ) )
                        return $this->$rule( $value );
                    else
                        return false;
                break;

            }
        }       


        /** 
        * Do Filter
        *  
        * @access   private
        * @param    string
        * @param    string
        * @return   boolean
        * @since    1.0
        */

        function do_filter( $filter, $value = "" )
        {
            switch ( $filter ) 
            {
                case 'strip_tags':
                    return $value;
                break;

                case 'wp_strip_all_tags':
                    return wp_strip_all_tags( $value );
                break;

                case 'esc_attr':
                    return esc_attr( $value );
                break;

                case 'esc_url':
                    return esc_url( $value );
                break;

                case 'esc_textarea':
                    return esc_textarea( $value );
                break;

                default:
                    if ( method_exists( $this, $filter ) )
                        return $this->$filter( $value );
                    else
                        return $value;
                break;
            }
        }


        /** 
        * Create Fields 
        * 
        * Creates each field defined. 
        * 
        * @access   private
        * @param    string
        * @return   string
        * @since    1.0
        */

        function create_fields( $out = "" ) {

            $out = $this->before_create_fields( $out );

            if ( ! empty( $this->fields ) ) {
                foreach ( $this->fields as $key ) {
                    if ( empty( $key ) ) continue;
                    $out .= $this->create_field( $key );
                }
            }

            $out = $this->after_create_fields( $out );

            return $out;
        }


        /** 
        * Before Create Fields
        *
        * Allows to modify code before creating the fields.
        *  
        * @access   public
        * @param    string
        * @return   string
        * @since    1.0
        */

        function before_create_fields( $out = "" ) {
            return $out;
        }


        /** 
        * After Create Fields
        * 
        * Allows to modify code after creating the fields.
        *
        * @access   public
        * @param    string
        * @return   string
        * @since    1.0
        */

        function after_create_fields( $out = "" ) {
            return $out;
        }


        /** 
        * Create Fields
        *  
        * @access   private
        * @param    string
        * @param    string
        * @return   string
        * @since    1.0
        */

        function create_field( $key, $out = "" ) {

            /* Set Defaults */
            $key['std'] = isset( $key['std'] ) ? $key['std'] : "";
            $key['std'] = isset( $key['default'] ) ? $key['default'] : $key['std'];

            $slug = (isset($key['id'])) ? $key['id'] : $key['param_name'];
            $heading = isset( $key['heading'] ) ? $key['heading'] : '';
            $key['name'] = (isset($key['name'])) ? $key['name'] : $heading;

            if(isset($key['skip_in']) && $key['skip_in'] == 'widget') {
                return;
            }
            if(isset($key['value'])) {
                $key['fields'] = $key['value'];
            }

            if ( isset( $key['true_state'] ) && isset( $key['false_state'] ) ) {
                $key['fields'] = array(
                    $key['true_state'] => $key['true_state'],
                    $key['false_state'] => $key['false_state'],
                );
            }
                  
            if(!isset($key['class'])) {
                $key['class'] = 'widefat';
            }
                  
            if(isset($key['description'])) {
                $key['desc'] = $key['description'];
            }

            if ( isset( $this->instance[$slug] ) )
                $key['value'] = empty( $this->instance[$slug] ) ? '' : $this->instance[$slug];
            else
                unset( $key['value'] );

            /* Set field id and name  */
            $key['_id'] = $this->get_field_id( $slug );
            $key['_name'] = $this->get_field_name( $slug );

            /* Set field type */
            if ( ! isset( $key['type'] ) ) $key['type'] = 'text';

            $key['type'] = $this->woodmart_change_type($key['type']);

            /* Prefix method */
            $field_method = 'create_field_' . str_replace( '-', '_', $key['type'] );

			$attr = '<div class="wd-widget-field wd-type-' . $key['type'] . '"';

			if ( isset( $key['param_name'] ) && isset( $key['value'] ) ) {
				$attr .= ' data-param_name="' . $key['param_name'] . '"';
				$attr .= ' data-value="' . $key['value'] . '"';
			}

			if ( isset( $key['dependency'] ) ) {
				$attr .= ' data-dependency=\'' . wp_json_encode( $key['dependency'] ) . '\'';
			}

			$attr .= '>';

			/* Run method */
			if ( method_exists( $this, $field_method ) ) {
				return $attr . $this->$field_method( $key ) . '</div>';
			}
		}

        private function woodmart_change_type($key) {
            switch ($key) {
                case 'textfield':
                    $key = 'text';
                break;
                case 'vc_link':
                    $key = 'text';
                break;
                case 'href':
                    $key = 'text';
                break;
                case 'textarea_html':
                    $key = 'textarea';
                break;
                case 'woodmart_switch':
                    $key = 'dropdown';
                break;
                case 'woodmart_button_set':
                    $key = 'dropdown';
                break;
                case 'woodmart_slider':
                    $key = 'dropdown';
                break;
                case 'woodmart_image_select':
                    $key = 'dropdown';
                break;
	            case 'woodmart_dropdown':
		            $key = 'dropdown';
		            break;
            }
            return $key;
        }
	
	    /**
	     * select2 field
	     *
	     * @access   private
	     * @param    array
	     * @param    string
	     * @return   string
	     * @since    1.5
	     */

		function create_field_select2( $key, $out = "" ) {
			$value = '';

			if ( isset( $key['std'] ) ) {
				$value = $key['std'];
			}

			if ( isset( $key['value'] ) ) {
				$value = $key['value'];
			}

			if ( ! is_array( $value ) ) {
				$value = explode( ',', $value );
			}

			if ( isset( $key['callback'] ) && method_exists( $this, $key['callback'] ) ) {
				$key['fields'] = $this->{$key['callback']}();
			}

			if ( isset( $key['callback_global'] ) && function_exists( $key['callback_global'] ) ) {
				$key['fields'] = $key['callback_global']();
			}

			wp_enqueue_script( 'select2', WOODMART_ASSETS . '/js/libs/select2.full.min.js', array(), woodmart_get_theme_info( 'Version' ), true );
			wp_enqueue_script( 'woodmart-admin-options', WOODMART_ASSETS . '/js/options.js', array(), WOODMART_VERSION, true );
			
			ob_start();
			
			?>
				<?php echo $this->create_field_label( $key['name'], $key['_id'] ); ?>
				<select name="<?php echo esc_attr( $key['_name'] ); ?>[]" id="<?php echo esc_attr( $key['_id'] ); ?>" class="xts-select xts-select2" multiple>
					<?php foreach ( $key['fields'] as $field => $option ) : ?>
						<?php
						$selected = false;
						
						if ( is_array( $value ) && in_array( $option, $value, false ) ) {
							$selected = true;
						}
						
						?>

						<option value="<?php echo esc_attr( $option ); ?>" <?php selected( true, $selected ); ?>>
							<?php echo esc_html( $field ); ?>
						</option>
					<?php endforeach; ?>
				</select>
			<?php
		
			return ob_get_clean();
		}


        /** 
        * dropdown field
        *  
        * @access   private
        * @param    array
        * @param    string
        * @return   string
        * @since    1.5
        */
        
        function create_field_dropdown( $key, $out = "" )
        {
			$out .= $this->create_field_label( $key['name'], $key['_id'] ) . '<br/>';

			if ( isset( $key['callback'] ) && method_exists( $this, $key['callback'] ) ) {
				$key['fields'] = $this->{$key['callback']}();
			}

	        if ( isset( $key['callback_global'] ) && function_exists( $key['callback_global'] ) ) {
		        $key['fields'] = $key['callback_global']();
	        }

            $selected = isset( $key['value'] ) ? $key['value'] : $key['std'];

            $out .= '<select id="' . esc_attr( $key['_id'] ) . '" name="' . esc_attr( $key['_name'] ) . '" data-value="' . esc_attr( $selected ) . '" ';

            if ( isset( $key['class'] ) )
                $out .= 'class="' . esc_attr( $key['class'] ) . '" ';

            $out .= '> ';

               if ( isset( $key['fields'] ) ) {
	               foreach ( $key['fields'] as $field => $option )
	               {

		               $out .= '<option value="' . esc_attr( $option ) . '" ';

		               if ( esc_attr( $selected ) == $option )
			               $out .= ' selected="selected" ';

		               $out .= '> '.esc_html( $field ).'</option>';

	               }
               }

            $out .= ' </select> ';
            
            if ( isset( $key['desc'] ) )
                $out .= '<br/><small class="description">'.wp_kses( $key['desc'], true ).'</small>';

            return $out;            
        }

        /** 
        * attach image field
        *  
        * @access   private
        * @param    array
        * @param    string
        * @return   string
        * @since    1.5
        */
        
        function create_field_attach_image( $key, $out = "" )
        {
	        wp_enqueue_script( 'woodmart-admin-options', WOODMART_ASSETS . '/js/options.js', array(), WOODMART_VERSION, true );
			wp_enqueue_script( 'woodmart-admin-scripts', WOODMART_ASSETS . '/js/admin.js', array(), WOODMART_VERSION, true );

            $value = isset( $key['value'] ) ? $key['value'] : $key['std'];

            $url = $style = '';

            if(isset($value)) {
                $url = wp_get_attachment_url($value);
            }

            if($url == '') {
                $style = 'display:none;';
            }

            $out .= $this->create_field_label( $key['name'], $key['_id'] ) . '<br/>';

            $out .= '<img src="'.$url.'" class="woodmart-image-src" style="'.$style.'" />';

            $out .= '<input type="hidden" ';

            if ( isset( $key['class'] ) )
                $out .= 'class="woodmart-image-upload ' . esc_attr( $key['class'] ) . '" ';


            $out .= 'id="' . esc_attr( $key['_id'] ) . '" name="' . esc_attr( $key['_name'] ) . '" value="' . esc_attr( $value ) . '" ';

            if ( isset( $key['size'] ) )
                $out .= 'size="' . esc_attr( $key['size'] ) . '" ';             

            $out .= ' />';

            $out .= '<button class="button woodmart-image-upload-btn">' .__('Upload image', 'woodmart') . '</button>';
            
            if ( isset( $key['desc'] ) )
                $out .= '<br/><small class="description">'.esc_html( $key['desc'] ).'</small>';

            return $out;
        }

	    /**
	     * Attach images field
	     *
	     * @access   private
	     * @since    1.5
	     *
	     * @param string
	     * @param array
	     *
	     * @return   string
	     */
	    function create_field_attach_images( $key, $out = '' ) {
		    wp_enqueue_script( 'woodmart-admin-options', WOODMART_ASSETS . '/js/options.js', array(), WOODMART_VERSION, true );
			wp_enqueue_script( 'woodmart-admin-scripts', WOODMART_ASSETS . '/js/admin.js', array(), WOODMART_VERSION, true );

		    $value = isset( $key['value'] ) ? $key['value'] : $key['std'];

		    $ids = explode( ',', $value );

		    ob_start();

		    ?>
		    <div class="xts-upload_list-control">
			    <?php echo $this->create_field_label( $key['name'], $key['_id'] ); ?>
			    <div class="xts-upload-preview">
				    <?php foreach ( $ids as $id ) : ?>
					    <?php if ( $id ) : ?>
						    <div data-attachment_id="<?php echo esc_attr( $id ); ?>">
							    <?php echo wp_get_attachment_image( $id, 'thumbnail' ); // phpcs:ignore ?>
							    <a href="#" class="xts-remove">
								    <span class="xts-i-close"></span>
							    </a>
						    </div>
					    <?php endif; ?>
				    <?php endforeach; ?>
			    </div>

			    <div class="xts-upload-btns">
				    <button class="xts-btn xts-upload-btn xts-i-import">
					    <?php esc_html_e( 'Upload', 'woodmart' ); ?>
				    </button>

				    <button class="xts-btn xts-btn-remove xts-color-warning">
					    <?php esc_html_e( 'Clear all', 'woodmart' ); ?>
				    </button>

				    <input type="hidden" class="xts-upload-input-id" name="<?php echo esc_attr( $key['_name'] ); ?>" value="<?php echo esc_attr( $value ); ?>" />
			    </div>

			    <?php if ( isset( $key['desc'] ) ) : ?>
				    <small class="description">
					    <?php echo esc_html( $key['desc'] ); ?>
				    </small>
			    <?php endif; ?>
		    </div>
		    <?php

			return $out . ob_get_clean();
	    }


        /** 
        * Field Text
        *  
        * @access   private
        * @param    array
        * @param    string
        * @return   string
        * @since    1.5
        */
        
        function create_field_text( $key, $out = "" )
        {
            $out .= $this->create_field_label( $key['name'], $key['_id'] ) . '<br/>';

            $out .= '<input type="text" ';

            if ( isset( $key['class'] ) )
                $out .= 'class="' . esc_attr( $key['class'] ) . '" ';

            $value = isset( $key['value'] ) ? $key['value'] : $key['std'];

            $out .= 'id="' . esc_attr( $key['_id'] ) . '" name="' . esc_attr( $key['_name'] ) . '" value="' . esc_attr( $value ) . '" ';

            if ( isset( $key['size'] ) )
                $out .= 'size="' . esc_attr( $key['size'] ) . '" ';             

            $out .= ' />';
            
            if ( isset( $key['desc'] ) )
                $out .= '<br/><small class="description">'.esc_html( $key['desc'] ).'</small>';

            return $out;
        }


        /** 
        * Field Textarea
        *  
        * @access   private
        * @param    array
        * @param    string
        * @return   string
        * @since    1.5
        */
        
        function create_field_textarea( $key, $out = "" )
        {
            $out .= $this->create_field_label( $key['name'], $key['_id'] ) . '<br/>';

            $out .= '<textarea ';

            if ( isset( $key['class'] ) )
                $out .= 'class="' . esc_attr( $key['class'] ) . '" ';

            if ( isset( $key['rows'] ) )
                $out .= 'rows="' . esc_attr( $key['rows'] ) . '" '; 

            if ( isset( $key['cols'] ) )
                $out .= 'cols="' . esc_attr( $key['cols'] ) . '" '; 

            $value = isset( $key['value'] ) ? $key['value'] : $key['std'];

            $out .= 'id="'. esc_attr( $key['_id'] ) .'" name="' . esc_attr( $key['_name'] ) . '">'.esc_html( $value );

            $out .= '</textarea>';
            
            if ( isset( $key['desc'] ) )
                $out .= '<br/><small class="description">'.esc_html( $key['desc'] ).'</small>';

            return $out;
        }

 
        /** 
        * Field Checkbox
        *  
        * @access   private
        * @param    array
        * @param    string
        * @return   string
        * @since    1.5
        */
        
        function create_field_checkbox( $key, $out = "" )
        {
            $out .= $this->create_field_label( $key['name'], $key['_id'] );

            $out .= ' <input type="checkbox" ';

            if ( isset( $key['class'] ) )
                $out .= 'class="checkbox ' . esc_attr( $key['class'] ) . '"';

            $out .= 'id="' . esc_attr( $key['_id'] ) . '" name="' . esc_attr( $key['_name'] ) . '" value="1" ';
            
            if ( ( isset( $key['value'] ) && $key['value'] == 1 ) OR ( ! isset( $key['value'] ) && $key['std'] == 1 ) )
                $out .= ' checked="checked" ';          

	        $out .= ' /> ';

            if ( isset( $key['desc'] ) )
                $out .= '<br/><small class="description">'.esc_html( $key['desc'] ).'</small>';

            return $out;            
        }


        /** 
        * Field Select
        *  
        * @access   private
        * @param    array
        * @param    string
        * @return   string
        * @since    1.5
        */
        
        function create_field_select( $key, $out = "" )
        {
            $out .= $this->create_field_label( $key['name'], $key['_id'] ) . '<br/>';

            $out .= '<select id="' . esc_attr( $key['_id'] ) . '" name="' . esc_attr( $key['_name'] ) . '" ';

            if ( isset( $key['class'] ) )
                $out .= 'class="' . esc_attr( $key['class'] ) . '" ';

            $out .= '> ';

            $selected = isset( $key['value'] ) ? $key['value'] : $key['std'];

                foreach ( $key['fields'] as $field => $option ) 
                {

                    $out .= '<option value="' . esc_attr( $option['value'] ) . '" ';

                    if ( esc_attr( $selected ) == $option['value'] )
                        $out .= ' selected="selected" ';

                    $out .= '> '.esc_html( $option['name'] ).'</option>';

                }

            $out .= ' </select> ';
            
            if ( isset( $key['desc'] ) )
                $out .= '<br/><small class="description">'.esc_html( $key['desc'] ).'</small>';

            return $out;            
        }


        /** 
        * Field Select with Options Group
        *  
        * @access   private
        * @param    array
        * @param    string
        * @return   string
        * @since    1.5
        */    
          
        function create_field_select_group( $key, $out = "" )
        {

            $out .= $this->create_field_label( $key['name'], $key['_id'] ) . '<br/>';

            $out .= '<select id="' . esc_attr( $key['_id'] ) . '" name="' . esc_attr( $key['_name'] ) . '" ';

            if ( isset( $key['class'] ) )
                $out .= 'class="' . esc_attr( $key['class'] ) . '" ';

            $out .= '> ';

            $selected = isset( $key['value'] ) ? $key['value'] : $key['std'];

                foreach ( $key['fields'] as $group => $fields ) 
                {

                    $out .= '<optgroup label="' . $group . '">';

                    foreach ( $fields as $field => $option ) 
                    {
                        $out .= '<option value="' . esc_attr( $option['value'] ) . '" ';

                        if ( esc_attr( $selected ) == $option['value'] )
                            $out .= ' selected="selected" ';

                        $out .= '> ' . esc_html( $option['name'] ) . '</option>';
                    }

                    $out .= '</optgroup>';

                }

            $out .= '</select>';
            
            if ( isset( $key['desc'] ) )
                $out .= '<br/><small class="description">'.esc_html( $key['desc'] ).'</small>';

            return $out;            
        }
        
        
        /** 
        * Field Number
        *  
        * @access   private
        * @param    array
        * @param    string
        * @return   string
        * @since    1.5
        */
        
        function create_field_number( $key, $out = "" )
        {
            $out .= $this->create_field_label( $key['name'], $key['_id'] ) . '<br/>';

            $out .= '<input type="number" ';

            if ( isset( $key['class'] ) )
                $out .= 'class="' . esc_attr( $key['class'] ) . '" ';

            $value = isset( $key['value'] ) ? $key['value'] : $key['std'];

            $out .= 'id="' . esc_attr( $key['_id'] ) . '" name="' . esc_attr( $key['_name'] ) . '" value="' . esc_attr( $value ) . '" ';

            if ( isset( $key['size'] ) )
                $out .= 'size="' . esc_attr( $key['size'] ) . '" ';             

            $out .= ' />';
            
            if ( isset( $key['desc'] ) )
                $out .= '<br/><small class="description">'.esc_html( $key['desc'] ).'</small>';

            return $out;
        }


        /** 
        * Field Label
        *  
        * @access   private
        * @param    string
        * @param    string
        * @return   string
        * @since    1.5
        */

        function create_field_label( $name = "", $id = "" ) {
            return '<label for="' . esc_attr( $id ). '">' . esc_html( $name ) . ':</label>';
        }

    } // class
}