felixarntz/wp-site-identity

<?php
/**
 * WP_Site_Identity_Settings_Field_Factory class
 *
 * @package WPSiteIdentity
 * @since 1.0.0
 */

/**
 * Class responsible for instantiating settings field objects.
 *
 * @since 1.0.0
 */
class WP_Site_Identity_Settings_Field_Factory {

    /**
     * Registry to use for instantiating settings fields.
     *
     * @since 1.0.0
     * @var WP_Site_Identity_Settings_Field_Registry
     */
    protected $registry;

    /**
     * Settings field control callbacks instance.
     *
     * @since 1.0.0
     * @var WP_Site_Identity_Settings_Field_Control_Callbacks
     */
    protected $callbacks;

    /**
     * Constructor.
     *
     * @since 1.0.0
     *
     * @param WP_Site_Identity_Settings_Field_Registry $registry Optional. Registry to use.
     */
    public function __construct( WP_Site_Identity_Settings_Field_Registry $registry = null ) {
        if ( $registry ) {
            $this->registry = $registry;
        } else {
            $this->registry = new WP_Site_Identity_Standard_Settings_Field_Registry();
        }

        $this->callbacks = new WP_Site_Identity_Settings_Field_Control_Callbacks();
    }

    /**
     * Instantiates a new settings field object for the given name and setting registry.
     *
     * @since 1.0.0
     *
     * @param WP_Site_Identity_Setting $setting Setting the settings field is for.
     * @param array                    $args    Optional. Arguments for the settings field. See {@see WP_Site_Identity_Settings_Field::__construct}
     *                                          for a list of supported arguments.
     * @return WP_Site_Identity_Settings_Field New settings field instance.
     */
    public function create_field( WP_Site_Identity_Setting $setting, array $args = array() ) {
        if ( ! isset( $args['render_callback'] ) ) {
            $args = $this->set_default_args_for_setting( $args, $setting );
        }

        return new WP_Site_Identity_Settings_Field( $setting, $args, $this->registry );
    }

    /**
     * Gets the registry to use for creating new settings fields.
     *
     * @since 1.0.0
     *
     * @return WP_Site_Identity_Settings_Field_Registry Registry for new settings fields.
     */
    public function registry() {
        return $this->registry;
    }

    /**
     * Gets the settings fields control callbacks instance.
     *
     * @since 1.0.0
     *
     * @return WP_Site_Identity_Settings_Field_Control_Callbacks Control callbacks instance.
     */
    public function callbacks() {
        return $this->callbacks;
    }

    /**
     * Gets the default render callback depending on settings field arguments.
     *
     * @since 1.0.0
     *
     * @param array                    $args    Arguments for the settings field. See {@see WP_Site_Identity_Settings_Field::__construct}
     *                                          for a list of supported arguments.
     * @param WP_Site_Identity_Setting $setting Setting the settings field is for.
     * @return array Arguments including a render callback.
     */
    protected function set_default_args_for_setting( array $args, WP_Site_Identity_Setting $setting ) {
        $type = isset( $args['type'] ) ? $args['type'] : $setting->get_type();

        switch ( $type ) {
            case 'boolean':
                $args['render_for_attr'] = false;
                $args['render_callback'] = array( $this->callbacks, 'render_checkbox_control' );
                break;
            case 'number':
            case 'integer':
                $args['render_for_attr'] = true;
                $args['render_callback'] = array( $this->callbacks, 'render_number_control' );
                if ( ! isset( $args['css_classes'] ) ) {
                    $args['css_classes'] = array( 'small-text' );
                }
                break;
            case 'string':
                $args['render_for_attr'] = true;

                $choices = $setting->get_choices();
                if ( ! empty( $choices ) ) {
                    if ( count( $choices ) <= 5 ) {
                        $args['render_callback'] = array( $this->callbacks, 'render_radio_control' );
                        $args['render_for_attr'] = false;
                    } else {
                        $args['render_callback'] = array( $this->callbacks, 'render_select_control' );
                    }
                } else {
                    $css_classes = array( 'regular-text' );

                    $default = $setting->get_default();
                    $format  = $setting->get_format();

                    if ( 'email' === $format ) {
                        $args['render_callback'] = array( $this->callbacks, 'render_email_control' );
                    } elseif ( 'uri' === $format ) {
                        $args['render_callback'] = array( $this->callbacks, 'render_url_control' );
                        $css_classes[] = 'code';
                    } else {
                        if ( is_string( $default ) && false !== strpos( $default, "\n" ) ) {
                            $args['render_callback'] = array( $this->callbacks, 'render_textarea_control' );
                        } else {
                            $args['render_callback'] = array( $this->callbacks, 'render_text_control' );
                        }
                    }

                    if ( ! isset( $args['css_classes'] ) ) {
                        $args['css_classes'] = $css_classes;
                    }
                }
                break;
        }

        return $args;
    }
}