woothemes/woocommerce

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includes/abstracts/abstract-wc-settings-api.php

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6 days
Test Coverage
<?php
/**
 * Abstract Settings API Class
 *
 * Admin Settings API used by Integrations, Shipping Methods, and Payment Gateways.
 *
 * @package  WooCommerce\Abstracts
 */

defined( 'ABSPATH' ) || exit;

/**
 * WC_Settings_API class.
 */
abstract class WC_Settings_API {

    /**
     * The plugin ID. Used for option names.
     *
     * @var string
     */
    public $plugin_id = 'woocommerce_';

    /**
     * ID of the class extending the settings API. Used in option names.
     *
     * @var string
     */
    public $id = '';

    /**
     * Validation errors.
     *
     * @var array of strings
     */
    public $errors = array();

    /**
     * Setting values.
     *
     * @var array
     */
    public $settings = array();

    /**
     * Form option fields.
     *
     * @var array
     */
    public $form_fields = array();

    /**
     * The posted settings data. When empty, $_POST data will be used.
     *
     * @var array
     */
    protected $data = array();

    /**
     * Get the form fields after they are initialized.
     *
     * @return array of options
     */
    public function get_form_fields() {
        return apply_filters( 'woocommerce_settings_api_form_fields_' . $this->id, array_map( array( $this, 'set_defaults' ), $this->form_fields ) );
    }

    /**
     * Set default required properties for each field.
     *
     * @param array $field Setting field array.
     * @return array
     */
    protected function set_defaults( $field ) {
        if ( ! isset( $field['default'] ) ) {
            $field['default'] = '';
        }
        return $field;
    }

    /**
     * Output the admin options table.
     */
    public function admin_options() {
        echo '<table class="form-table">' . $this->generate_settings_html( $this->get_form_fields(), false ) . '</table>'; // WPCS: XSS ok.
    }

    /**
     * Initialise settings form fields.
     *
     * Add an array of fields to be displayed on the gateway's settings screen.
     *
     * @since  1.0.0
     */
    public function init_form_fields() {}

    /**
     * Return the name of the option in the WP DB.
     *
     * @since 2.6.0
     * @return string
     */
    public function get_option_key() {
        return $this->plugin_id . $this->id . '_settings';
    }

    /**
     * Get a fields type. Defaults to "text" if not set.
     *
     * @param  array $field Field key.
     * @return string
     */
    public function get_field_type( $field ) {
        return empty( $field['type'] ) ? 'text' : $field['type'];
    }

    /**
     * Get a fields default value. Defaults to "" if not set.
     *
     * @param  array $field Field key.
     * @return string
     */
    public function get_field_default( $field ) {
        return empty( $field['default'] ) ? '' : $field['default'];
    }

    /**
     * Get a field's posted and validated value.
     *
     * @param string $key Field key.
     * @param array  $field Field array.
     * @param array  $post_data Posted data.
     * @return string
     */
    public function get_field_value( $key, $field, $post_data = array() ) {
        $type      = $this->get_field_type( $field );
        $field_key = $this->get_field_key( $key );
        $post_data = empty( $post_data ) ? $_POST : $post_data; // WPCS: CSRF ok, input var ok.
        $value     = isset( $post_data[ $field_key ] ) ? $post_data[ $field_key ] : null;

        if ( isset( $field['sanitize_callback'] ) && is_callable( $field['sanitize_callback'] ) ) {
            return call_user_func( $field['sanitize_callback'], $value );
        }

        // Look for a validate_FIELDID_field method for special handling.
        if ( is_callable( array( $this, 'validate_' . $key . '_field' ) ) ) {
            return $this->{'validate_' . $key . '_field'}( $key, $value );
        }

        // Look for a validate_FIELDTYPE_field method.
        if ( is_callable( array( $this, 'validate_' . $type . '_field' ) ) ) {
            return $this->{'validate_' . $type . '_field'}( $key, $value );
        }

        // Fallback to text.
        return $this->validate_text_field( $key, $value );
    }

    /**
     * Sets the POSTed data. This method can be used to set specific data, instead of taking it from the $_POST array.
     *
     * @param array $data Posted data.
     */
    public function set_post_data( $data = array() ) {
        $this->data = $data;
    }

    /**
     * Returns the POSTed data, to be used to save the settings.
     *
     * @return array
     */
    public function get_post_data() {
        if ( ! empty( $this->data ) && is_array( $this->data ) ) {
            return $this->data;
        }
        return $_POST; // WPCS: CSRF ok, input var ok.
    }

    /**
     * Update a single option.
     *
     * @since 3.4.0
     * @param string $key Option key.
     * @param mixed  $value Value to set.
     * @return bool was anything saved?
     */
    public function update_option( $key, $value = '' ) {
        if ( empty( $this->settings ) ) {
            $this->init_settings();
        }

        $this->settings[ $key ] = $value;

        return update_option( $this->get_option_key(), apply_filters( 'woocommerce_settings_api_sanitized_fields_' . $this->id, $this->settings ), 'yes' );
    }

    /**
     * Processes and saves options.
     * If there is an error thrown, will continue to save and validate fields, but will leave the erroring field out.
     *
     * @return bool was anything saved?
     */
    public function process_admin_options() {
        $this->init_settings();

        $post_data = $this->get_post_data();

        foreach ( $this->get_form_fields() as $key => $field ) {
            if ( 'title' !== $this->get_field_type( $field ) ) {
                try {
                    $this->settings[ $key ] = $this->get_field_value( $key, $field, $post_data );
                } catch ( Exception $e ) {
                    $this->add_error( $e->getMessage() );
                }
            }
        }

        return update_option( $this->get_option_key(), apply_filters( 'woocommerce_settings_api_sanitized_fields_' . $this->id, $this->settings ), 'yes' );
    }

    /**
     * Add an error message for display in admin on save.
     *
     * @param string $error Error message.
     */
    public function add_error( $error ) {
        $this->errors[] = $error;
    }

    /**
     * Get admin error messages.
     */
    public function get_errors() {
        return $this->errors;
    }

    /**
     * Display admin error messages.
     */
    public function display_errors() {
        if ( $this->get_errors() ) {
            echo '<div id="woocommerce_errors" class="error notice is-dismissible">';
            foreach ( $this->get_errors() as $error ) {
                echo '<p>' . wp_kses_post( $error ) . '</p>';
            }
            echo '</div>';
        }
    }

    /**
     * Initialise Settings.
     *
     * Store all settings in a single database entry
     * and make sure the $settings array is either the default
     * or the settings stored in the database.
     *
     * @since 1.0.0
     * @uses get_option(), add_option()
     */
    public function init_settings() {
        $this->settings = get_option( $this->get_option_key(), null );

        // If there are no settings defined, use defaults.
        if ( ! is_array( $this->settings ) ) {
            $form_fields    = $this->get_form_fields();
            $this->settings = array_merge( array_fill_keys( array_keys( $form_fields ), '' ), wp_list_pluck( $form_fields, 'default' ) );
        }
    }

    /**
     * Get option from DB.
     *
     * Gets an option from the settings API, using defaults if necessary to prevent undefined notices.
     *
     * @param  string $key Option key.
     * @param  mixed  $empty_value Value when empty.
     * @return string The value specified for the option or a default value for the option.
     */
    public function get_option( $key, $empty_value = null ) {
        if ( empty( $this->settings ) ) {
            $this->init_settings();
        }

        // Get option default if unset.
        if ( ! isset( $this->settings[ $key ] ) ) {
            $form_fields            = $this->get_form_fields();
            $this->settings[ $key ] = isset( $form_fields[ $key ] ) ? $this->get_field_default( $form_fields[ $key ] ) : '';
        }

        if ( ! is_null( $empty_value ) && '' === $this->settings[ $key ] ) {
            $this->settings[ $key ] = $empty_value;
        }

        return $this->settings[ $key ];
    }

    /**
     * Prefix key for settings.
     *
     * @param  string $key Field key.
     * @return string
     */
    public function get_field_key( $key ) {
        return $this->plugin_id . $this->id . '_' . $key;
    }

    /**
     * Generate Settings HTML.
     *
     * Generate the HTML for the fields on the "settings" screen.
     *
     * @param array $form_fields (default: array()) Array of form fields.
     * @param bool  $echo Echo or return.
     * @return string the html for the settings
     * @since  1.0.0
     * @uses   method_exists()
     */
    public function generate_settings_html( $form_fields = array(), $echo = true ) {
        if ( empty( $form_fields ) ) {
            $form_fields = $this->get_form_fields();
        }

        $html = '';
        foreach ( $form_fields as $k => $v ) {
            $type = $this->get_field_type( $v );

            if ( method_exists( $this, 'generate_' . $type . '_html' ) ) {
                $html .= $this->{'generate_' . $type . '_html'}( $k, $v );
            } else {
                $html .= $this->generate_text_html( $k, $v );
            }
        }

        if ( $echo ) {
            echo $html; // WPCS: XSS ok.
        } else {
            return $html;
        }
    }

    /**
     * Get HTML for tooltips.
     *
     * @param  array $data Data for the tooltip.
     * @return string
     */
    public function get_tooltip_html( $data ) {
        if ( true === $data['desc_tip'] ) {
            $tip = $data['description'];
        } elseif ( ! empty( $data['desc_tip'] ) ) {
            $tip = $data['desc_tip'];
        } else {
            $tip = '';
        }

        return $tip ? wc_help_tip( $tip, true ) : '';
    }

    /**
     * Get HTML for descriptions.
     *
     * @param  array $data Data for the description.
     * @return string
     */
    public function get_description_html( $data ) {
        if ( true === $data['desc_tip'] ) {
            $description = '';
        } elseif ( ! empty( $data['desc_tip'] ) ) {
            $description = $data['description'];
        } elseif ( ! empty( $data['description'] ) ) {
            $description = $data['description'];
        } else {
            $description = '';
        }

        return $description ? '<p class="description">' . wp_kses_post( $description ) . '</p>' . "\n" : '';
    }

    /**
     * Get custom attributes.
     *
     * @param  array $data Field data.
     * @return string
     */
    public function get_custom_attribute_html( $data ) {
        $custom_attributes = array();

        if ( ! empty( $data['custom_attributes'] ) && is_array( $data['custom_attributes'] ) ) {
            foreach ( $data['custom_attributes'] as $attribute => $attribute_value ) {
                $custom_attributes[] = esc_attr( $attribute ) . '="' . esc_attr( $attribute_value ) . '"';
            }
        }

        return implode( ' ', $custom_attributes );
    }

    /**
     * Generate Text Input HTML.
     *
     * @param string $key Field key.
     * @param array  $data Field data.
     * @since  1.0.0
     * @return string
     */
    public function generate_text_html( $key, $data ) {
        $field_key = $this->get_field_key( $key );
        $defaults  = array(
            'title'             => '',
            'disabled'          => false,
            'class'             => '',
            'css'               => '',
            'placeholder'       => '',
            'type'              => 'text',
            'desc_tip'          => false,
            'description'       => '',
            'custom_attributes' => array(),
        );

        $data = wp_parse_args( $data, $defaults );

        ob_start();
        ?>
        <tr valign="top">
            <th scope="row" class="titledesc">
                <label for="<?php echo esc_attr( $field_key ); ?>"><?php echo wp_kses_post( $data['title'] ); ?> <?php echo $this->get_tooltip_html( $data ); // WPCS: XSS ok. ?></label>
            </th>
            <td class="forminp">
                <fieldset>
                    <legend class="screen-reader-text"><span><?php echo wp_kses_post( $data['title'] ); ?></span></legend>
                    <input class="input-text regular-input <?php echo esc_attr( $data['class'] ); ?>" type="<?php echo esc_attr( $data['type'] ); ?>" name="<?php echo esc_attr( $field_key ); ?>" id="<?php echo esc_attr( $field_key ); ?>" style="<?php echo esc_attr( $data['css'] ); ?>" value="<?php echo esc_attr( $this->get_option( $key ) ); ?>" placeholder="<?php echo esc_attr( $data['placeholder'] ); ?>" <?php disabled( $data['disabled'], true ); ?> <?php echo $this->get_custom_attribute_html( $data ); // WPCS: XSS ok. ?> />
                    <?php echo $this->get_description_html( $data ); // WPCS: XSS ok. ?>
                </fieldset>
            </td>
        </tr>
        <?php

        return ob_get_clean();
    }

    /**
     * Generate Price Input HTML.
     *
     * @param string $key Field key.
     * @param array  $data Field data.
     * @since  1.0.0
     * @return string
     */
    public function generate_price_html( $key, $data ) {
        $field_key = $this->get_field_key( $key );
        $defaults  = array(
            'title'             => '',
            'disabled'          => false,
            'class'             => '',
            'css'               => '',
            'placeholder'       => '',
            'type'              => 'text',
            'desc_tip'          => false,
            'description'       => '',
            'custom_attributes' => array(),
        );

        $data = wp_parse_args( $data, $defaults );

        ob_start();
        ?>
        <tr valign="top">
            <th scope="row" class="titledesc">
                <label for="<?php echo esc_attr( $field_key ); ?>"><?php echo wp_kses_post( $data['title'] ); ?> <?php echo $this->get_tooltip_html( $data ); // WPCS: XSS ok. ?></label>
            </th>
            <td class="forminp">
                <fieldset>
                    <legend class="screen-reader-text"><span><?php echo wp_kses_post( $data['title'] ); ?></span></legend>
                    <input class="wc_input_price input-text regular-input <?php echo esc_attr( $data['class'] ); ?>" type="text" name="<?php echo esc_attr( $field_key ); ?>" id="<?php echo esc_attr( $field_key ); ?>" style="<?php echo esc_attr( $data['css'] ); ?>" value="<?php echo esc_attr( wc_format_localized_price( $this->get_option( $key ) ) ); ?>" placeholder="<?php echo esc_attr( $data['placeholder'] ); ?>" <?php disabled( $data['disabled'], true ); ?> <?php echo $this->get_custom_attribute_html( $data ); // WPCS: XSS ok. ?> />
                    <?php echo $this->get_description_html( $data ); // WPCS: XSS ok. ?>
                </fieldset>
            </td>
        </tr>
        <?php

        return ob_get_clean();
    }

    /**
     * Generate Decimal Input HTML.
     *
     * @param string $key Field key.
     * @param array  $data Field data.
     * @since  1.0.0
     * @return string
     */
    public function generate_decimal_html( $key, $data ) {
        $field_key = $this->get_field_key( $key );
        $defaults  = array(
            'title'             => '',
            'disabled'          => false,
            'class'             => '',
            'css'               => '',
            'placeholder'       => '',
            'type'              => 'text',
            'desc_tip'          => false,
            'description'       => '',
            'custom_attributes' => array(),
        );

        $data = wp_parse_args( $data, $defaults );

        ob_start();
        ?>
        <tr valign="top">
            <th scope="row" class="titledesc">
                <label for="<?php echo esc_attr( $field_key ); ?>"><?php echo wp_kses_post( $data['title'] ); ?> <?php echo $this->get_tooltip_html( $data ); // WPCS: XSS ok. ?></label>
            </th>
            <td class="forminp">
                <fieldset>
                    <legend class="screen-reader-text"><span><?php echo wp_kses_post( $data['title'] ); ?></span></legend>
                    <input class="wc_input_decimal input-text regular-input <?php echo esc_attr( $data['class'] ); ?>" type="text" name="<?php echo esc_attr( $field_key ); ?>" id="<?php echo esc_attr( $field_key ); ?>" style="<?php echo esc_attr( $data['css'] ); ?>" value="<?php echo esc_attr( wc_format_localized_decimal( $this->get_option( $key ) ) ); ?>" placeholder="<?php echo esc_attr( $data['placeholder'] ); ?>" <?php disabled( $data['disabled'], true ); ?> <?php echo $this->get_custom_attribute_html( $data ); // WPCS: XSS ok. ?> />
                    <?php echo $this->get_description_html( $data ); // WPCS: XSS ok. ?>
                </fieldset>
            </td>
        </tr>
        <?php

        return ob_get_clean();
    }

    /**
     * Generate Password Input HTML.
     *
     * @param string $key Field key.
     * @param array  $data Field data.
     * @since  1.0.0
     * @return string
     */
    public function generate_password_html( $key, $data ) {
        $data['type'] = 'password';
        return $this->generate_text_html( $key, $data );
    }

    /**
     * Generate Color Picker Input HTML.
     *
     * @param string $key Field key.
     * @param array  $data Field data.
     * @since  1.0.0
     * @return string
     */
    public function generate_color_html( $key, $data ) {
        $field_key = $this->get_field_key( $key );
        $defaults  = array(
            'title'             => '',
            'disabled'          => false,
            'class'             => '',
            'css'               => '',
            'placeholder'       => '',
            'desc_tip'          => false,
            'description'       => '',
            'custom_attributes' => array(),
        );

        $data = wp_parse_args( $data, $defaults );

        ob_start();
        ?>
        <tr valign="top">
            <th scope="row" class="titledesc">
                <label for="<?php echo esc_attr( $field_key ); ?>"><?php echo wp_kses_post( $data['title'] ); ?> <?php echo $this->get_tooltip_html( $data ); // WPCS: XSS ok. ?></label>
            </th>
            <td class="forminp">
                <fieldset>
                    <legend class="screen-reader-text"><span><?php echo wp_kses_post( $data['title'] ); ?></span></legend>
                    <span class="colorpickpreview" style="background:<?php echo esc_attr( $this->get_option( $key ) ); ?>;">&nbsp;</span>
                    <input class="colorpick <?php echo esc_attr( $data['class'] ); ?>" type="text" name="<?php echo esc_attr( $field_key ); ?>" id="<?php echo esc_attr( $field_key ); ?>" style="<?php echo esc_attr( $data['css'] ); ?>" value="<?php echo esc_attr( $this->get_option( $key ) ); ?>" placeholder="<?php echo esc_attr( $data['placeholder'] ); ?>" <?php disabled( $data['disabled'], true ); ?> <?php echo $this->get_custom_attribute_html( $data ); // WPCS: XSS ok. ?> />
                    <div id="colorPickerDiv_<?php echo esc_attr( $field_key ); ?>" class="colorpickdiv" style="z-index: 100; background: #eee; border: 1px solid #ccc; position: absolute; display: none;"></div>
                    <?php echo $this->get_description_html( $data ); // WPCS: XSS ok. ?>
                </fieldset>
            </td>
        </tr>
        <?php

        return ob_get_clean();
    }

    /**
     * Generate Textarea HTML.
     *
     * @param string $key Field key.
     * @param array  $data Field data.
     * @since  1.0.0
     * @return string
     */
    public function generate_textarea_html( $key, $data ) {
        $field_key = $this->get_field_key( $key );
        $defaults  = array(
            'title'             => '',
            'disabled'          => false,
            'class'             => '',
            'css'               => '',
            'placeholder'       => '',
            'type'              => 'text',
            'desc_tip'          => false,
            'description'       => '',
            'custom_attributes' => array(),
        );

        $data = wp_parse_args( $data, $defaults );

        ob_start();
        ?>
        <tr valign="top">
            <th scope="row" class="titledesc">
                <label for="<?php echo esc_attr( $field_key ); ?>"><?php echo wp_kses_post( $data['title'] ); ?> <?php echo $this->get_tooltip_html( $data ); // WPCS: XSS ok. ?></label>
            </th>
            <td class="forminp">
                <fieldset>
                    <legend class="screen-reader-text"><span><?php echo wp_kses_post( $data['title'] ); ?></span></legend>
                    <textarea rows="3" cols="20" class="input-text wide-input <?php echo esc_attr( $data['class'] ); ?>" type="<?php echo esc_attr( $data['type'] ); ?>" name="<?php echo esc_attr( $field_key ); ?>" id="<?php echo esc_attr( $field_key ); ?>" style="<?php echo esc_attr( $data['css'] ); ?>" placeholder="<?php echo esc_attr( $data['placeholder'] ); ?>" <?php disabled( $data['disabled'], true ); ?> <?php echo $this->get_custom_attribute_html( $data ); // WPCS: XSS ok. ?>><?php echo esc_textarea( $this->get_option( $key ) ); ?></textarea>
                    <?php echo $this->get_description_html( $data ); // WPCS: XSS ok. ?>
                </fieldset>
            </td>
        </tr>
        <?php

        return ob_get_clean();
    }

    /**
     * Generate Checkbox HTML.
     *
     * @param string $key Field key.
     * @param array  $data Field data.
     * @since  1.0.0
     * @return string
     */
    public function generate_checkbox_html( $key, $data ) {
        $field_key = $this->get_field_key( $key );
        $defaults  = array(
            'title'             => '',
            'label'             => '',
            'disabled'          => false,
            'class'             => '',
            'css'               => '',
            'type'              => 'text',
            'desc_tip'          => false,
            'description'       => '',
            'custom_attributes' => array(),
        );

        $data = wp_parse_args( $data, $defaults );

        if ( ! $data['label'] ) {
            $data['label'] = $data['title'];
        }

        ob_start();
        ?>
        <tr valign="top">
            <th scope="row" class="titledesc">
                <label for="<?php echo esc_attr( $field_key ); ?>"><?php echo wp_kses_post( $data['title'] ); ?> <?php echo $this->get_tooltip_html( $data ); // WPCS: XSS ok. ?></label>
            </th>
            <td class="forminp">
                <fieldset>
                    <legend class="screen-reader-text"><span><?php echo wp_kses_post( $data['title'] ); ?></span></legend>
                    <label for="<?php echo esc_attr( $field_key ); ?>">
                    <input <?php disabled( $data['disabled'], true ); ?> class="<?php echo esc_attr( $data['class'] ); ?>" type="checkbox" name="<?php echo esc_attr( $field_key ); ?>" id="<?php echo esc_attr( $field_key ); ?>" style="<?php echo esc_attr( $data['css'] ); ?>" value="1" <?php checked( $this->get_option( $key ), 'yes' ); ?> <?php echo $this->get_custom_attribute_html( $data ); // WPCS: XSS ok. ?> /> <?php echo wp_kses_post( $data['label'] ); ?></label><br/>
                    <?php echo $this->get_description_html( $data ); // WPCS: XSS ok. ?>
                </fieldset>
            </td>
        </tr>
        <?php

        return ob_get_clean();
    }

    /**
     * Generate Select HTML.
     *
     * @param string $key Field key.
     * @param array  $data Field data.
     * @since  1.0.0
     * @return string
     */
    public function generate_select_html( $key, $data ) {
        $field_key = $this->get_field_key( $key );
        $defaults  = array(
            'title'             => '',
            'disabled'          => false,
            'class'             => '',
            'css'               => '',
            'placeholder'       => '',
            'type'              => 'text',
            'desc_tip'          => false,
            'description'       => '',
            'custom_attributes' => array(),
            'options'           => array(),
        );

        $data = wp_parse_args( $data, $defaults );

        ob_start();
        ?>
        <tr valign="top">
            <th scope="row" class="titledesc">
                <label for="<?php echo esc_attr( $field_key ); ?>"><?php echo wp_kses_post( $data['title'] ); ?> <?php echo $this->get_tooltip_html( $data ); // WPCS: XSS ok. ?></label>
            </th>
            <td class="forminp">
                <fieldset>
                    <legend class="screen-reader-text"><span><?php echo wp_kses_post( $data['title'] ); ?></span></legend>
                    <select class="select <?php echo esc_attr( $data['class'] ); ?>" name="<?php echo esc_attr( $field_key ); ?>" id="<?php echo esc_attr( $field_key ); ?>" style="<?php echo esc_attr( $data['css'] ); ?>" <?php disabled( $data['disabled'], true ); ?> <?php echo $this->get_custom_attribute_html( $data ); // WPCS: XSS ok. ?>>
                        <?php foreach ( (array) $data['options'] as $option_key => $option_value ) : ?>
                            <option value="<?php echo esc_attr( $option_key ); ?>" <?php selected( (string) $option_key, esc_attr( $this->get_option( $key ) ) ); ?>><?php echo esc_html( $option_value ); ?></option>
                        <?php endforeach; ?>
                    </select>
                    <?php echo $this->get_description_html( $data ); // WPCS: XSS ok. ?>
                </fieldset>
            </td>
        </tr>
        <?php

        return ob_get_clean();
    }

    /**
     * Generate Multiselect HTML.
     *
     * @param string $key Field key.
     * @param array  $data Field data.
     * @since  1.0.0
     * @return string
     */
    public function generate_multiselect_html( $key, $data ) {
        $field_key = $this->get_field_key( $key );
        $defaults  = array(
            'title'             => '',
            'disabled'          => false,
            'class'             => '',
            'css'               => '',
            'placeholder'       => '',
            'type'              => 'text',
            'desc_tip'          => false,
            'description'       => '',
            'custom_attributes' => array(),
            'select_buttons'    => false,
            'options'           => array(),
        );

        $data  = wp_parse_args( $data, $defaults );
        $value = (array) $this->get_option( $key, array() );

        ob_start();
        ?>
        <tr valign="top">
            <th scope="row" class="titledesc">
                <label for="<?php echo esc_attr( $field_key ); ?>"><?php echo wp_kses_post( $data['title'] ); ?> <?php echo $this->get_tooltip_html( $data ); // WPCS: XSS ok. ?></label>
            </th>
            <td class="forminp">
                <fieldset>
                    <legend class="screen-reader-text"><span><?php echo wp_kses_post( $data['title'] ); ?></span></legend>
                    <select multiple="multiple" class="multiselect <?php echo esc_attr( $data['class'] ); ?>" name="<?php echo esc_attr( $field_key ); ?>[]" id="<?php echo esc_attr( $field_key ); ?>" style="<?php echo esc_attr( $data['css'] ); ?>" <?php disabled( $data['disabled'], true ); ?> <?php echo $this->get_custom_attribute_html( $data ); // WPCS: XSS ok. ?>>
                        <?php foreach ( (array) $data['options'] as $option_key => $option_value ) : ?>
                            <?php if ( is_array( $option_value ) ) : ?>
                                <optgroup label="<?php echo esc_attr( $option_key ); ?>">
                                    <?php foreach ( $option_value as $option_key_inner => $option_value_inner ) : ?>
                                        <option value="<?php echo esc_attr( $option_key_inner ); ?>" <?php selected( in_array( (string) $option_key_inner, $value, true ), true ); ?>><?php echo esc_html( $option_value_inner ); ?></option>
                                    <?php endforeach; ?>
                                </optgroup>
                            <?php else : ?>
                                <option value="<?php echo esc_attr( $option_key ); ?>" <?php selected( in_array( (string) $option_key, $value, true ), true ); ?>><?php echo esc_html( $option_value ); ?></option>
                            <?php endif; ?>
                        <?php endforeach; ?>
                    </select>
                    <?php echo $this->get_description_html( $data ); // WPCS: XSS ok. ?>
                    <?php if ( $data['select_buttons'] ) : ?>
                        <br/><a class="select_all button" href="#"><?php esc_html_e( 'Select all', 'woocommerce' ); ?></a> <a class="select_none button" href="#"><?php esc_html_e( 'Select none', 'woocommerce' ); ?></a>
                    <?php endif; ?>
                </fieldset>
            </td>
        </tr>
        <?php

        return ob_get_clean();
    }

    /**
     * Generate Title HTML.
     *
     * @param string $key Field key.
     * @param array  $data Field data.
     * @since  1.0.0
     * @return string
     */
    public function generate_title_html( $key, $data ) {
        $field_key = $this->get_field_key( $key );
        $defaults  = array(
            'title' => '',
            'class' => '',
        );

        $data = wp_parse_args( $data, $defaults );

        ob_start();
        ?>
            </table>
            <h3 class="wc-settings-sub-title <?php echo esc_attr( $data['class'] ); ?>" id="<?php echo esc_attr( $field_key ); ?>"><?php echo wp_kses_post( $data['title'] ); ?></h3>
            <?php if ( ! empty( $data['description'] ) ) : ?>
                <p><?php echo wp_kses_post( $data['description'] ); ?></p>
            <?php endif; ?>
            <table class="form-table">
        <?php

        return ob_get_clean();
    }

    /**
     * Validate Text Field.
     *
     * Make sure the data is escaped correctly, etc.
     *
     * @param  string $key Field key.
     * @param  string $value Posted Value.
     * @return string
     */
    public function validate_text_field( $key, $value ) {
        $value = is_null( $value ) ? '' : $value;
        return wp_kses_post( trim( stripslashes( $value ) ) );
    }

    /**
     * Validate Price Field.
     *
     * Make sure the data is escaped correctly, etc.
     *
     * @param  string $key Field key.
     * @param  string $value Posted Value.
     * @return string
     */
    public function validate_price_field( $key, $value ) {
        $value = is_null( $value ) ? '' : $value;
        return ( '' === $value ) ? '' : wc_format_decimal( trim( stripslashes( $value ) ) );
    }

    /**
     * Validate Decimal Field.
     *
     * Make sure the data is escaped correctly, etc.
     *
     * @param  string $key Field key.
     * @param  string $value Posted Value.
     * @return string
     */
    public function validate_decimal_field( $key, $value ) {
        $value = is_null( $value ) ? '' : $value;
        return ( '' === $value ) ? '' : wc_format_decimal( trim( stripslashes( $value ) ) );
    }

    /**
     * Validate Password Field. No input sanitization is used to avoid corrupting passwords.
     *
     * @param  string $key Field key.
     * @param  string $value Posted Value.
     * @return string
     */
    public function validate_password_field( $key, $value ) {
        $value = is_null( $value ) ? '' : $value;
        return trim( stripslashes( $value ) );
    }

    /**
     * Validate Textarea Field.
     *
     * @param  string $key Field key.
     * @param  string $value Posted Value.
     * @return string
     */
    public function validate_textarea_field( $key, $value ) {
        $value = is_null( $value ) ? '' : $value;
        return wp_kses(
            trim( stripslashes( $value ) ),
            array_merge(
                array(
                    'iframe' => array(
                        'src'   => true,
                        'style' => true,
                        'id'    => true,
                        'class' => true,
                    ),
                ),
                wp_kses_allowed_html( 'post' )
            )
        );
    }

    /**
     * Validate Checkbox Field.
     *
     * If not set, return "no", otherwise return "yes".
     *
     * @param  string $key Field key.
     * @param  string $value Posted Value.
     * @return string
     */
    public function validate_checkbox_field( $key, $value ) {
        return ! is_null( $value ) ? 'yes' : 'no';
    }

    /**
     * Validate Select Field.
     *
     * @param  string $key Field key.
     * @param  string $value Posted Value.
     * @return string
     */
    public function validate_select_field( $key, $value ) {
        $value = is_null( $value ) ? '' : $value;
        return wc_clean( stripslashes( $value ) );
    }

    /**
     * Validate Multiselect Field.
     *
     * @param  string $key Field key.
     * @param  string $value Posted Value.
     * @return string|array
     */
    public function validate_multiselect_field( $key, $value ) {
        return is_array( $value ) ? array_map( 'wc_clean', array_map( 'stripslashes', $value ) ) : '';
    }

    /**
     * Validate the data on the "Settings" form.
     *
     * @deprecated 2.6.0 No longer used.
     * @param array $form_fields Array of fields.
     */
    public function validate_settings_fields( $form_fields = array() ) {
        wc_deprecated_function( 'validate_settings_fields', '2.6' );
    }

    /**
     * Format settings if needed.
     *
     * @deprecated 2.6.0 Unused.
     * @param  array $value Value to format.
     * @return array
     */
    public function format_settings( $value ) {
        wc_deprecated_function( 'format_settings', '2.6' );
        return $value;
    }
}