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<?php
/**
* Manages settings compatibility helpers. Those allow us to make
* changes to node settings without breaking compatibility with
* existing nodes that have already been saved to the database.
*
* @since 2.2
*/
final class FLBuilderSettingsCompat {
/**
* An array of registered compatibility helpers.
*
* @since 2.2
* @var array $helpers
*/
static private $helpers = array();
/**
* Initialize.
*
* @since 2.2
* @return void
*/
static public function init() {
require_once FL_BUILDER_DIR . 'classes/compat/class-fl-builder-settings-compat-helper.php';
require_once FL_BUILDER_DIR . 'classes/compat/class-fl-builder-settings-compat-generic.php';
require_once FL_BUILDER_DIR . 'classes/compat/class-fl-builder-settings-compat-row.php';
require_once FL_BUILDER_DIR . 'classes/compat/class-fl-builder-settings-compat-column.php';
require_once FL_BUILDER_DIR . 'classes/compat/class-fl-builder-settings-compat-module.php';
self::register_helper( 'generic', 'FLBuilderSettingsCompatGeneric' );
self::register_helper( 'row', 'FLBuilderSettingsCompatRow' );
self::register_helper( 'column', 'FLBuilderSettingsCompatColumn' );
self::register_helper( 'module', 'FLBuilderSettingsCompatModule' );
}
/**
* Registers a compatibility helper for a node.
*
* @since 2.2
* @param string $type
* @param string $class
* @return void
*/
static public function register_helper( $type, $class ) {
self::$helpers[ $type ] = new $class();
}
/**
* Loops through layout data and ensures node settings
* are backwards compatible.
*
* @since 2.2
* @param object data
* @return object
*/
static public function filter_layout_data( $data ) {
foreach ( $data as $node_id => $node ) {
if ( isset( $node->settings ) && is_object( $node->settings ) ) {
$data[ $node_id ]->settings = self::filter_node_settings( $node );
}
}
return $data;
}
/**
* Ensures settings are backwards compatible for a single node.
*
* @since 2.2
* @param object $node
* @return object
*/
static public function filter_node_settings( $node ) {
$type = $node->type;
$settings = $node->settings;
// Filter raw module settings without defaults first.
if ( 'module' === $type && isset( FLBuilderModel::$modules[ $settings->type ] ) ) {
$module = FLBuilderModel::$modules[ $settings->type ];
$defaults = FLBuilderModel::get_node_defaults( $node );
$settings = $module->filter_raw_settings( $settings, $defaults );
}
// Make sure the defaults are merged.
$settings = FLBuilderModel::get_node_settings_with_defaults_merged( $node );
// Filter with the generic helper for all node types.
$settings = self::$helpers['generic']->filter_settings( $settings );
// Filter with a node specific helper if one is available.
$helper = isset( self::$helpers[ $type ] ) ? self::$helpers[ $type ] : null;
if ( $helper ) {
$settings = $helper->filter_settings( $settings );
}
// Filter with a module specific helper if one is available.
if ( 'module' === $type && isset( FLBuilderModel::$modules[ $settings->type ] ) ) {
$module = FLBuilderModel::$modules[ $settings->type ];
$settings = $module->filter_settings( $settings, self::$helpers['module'] );
}
return $settings;
}
}
FLBuilderSettingsCompat::init();