Complex classes like Wpml often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Wpml, and based on these observations, apply Extract Interface, too.
| 1 | <?php | ||
| 22 | 	final class Wpml { | ||
| 23 | |||
| 24 | /** | ||
| 25 | * The single instance of the class | ||
| 26 | * | ||
| 27 | * @var object | ||
| 28 | * @since 3.0.0 | ||
| 29 | */ | ||
| 30 | protected static $_instance = null; | ||
| 31 | |||
| 32 | /** | ||
| 33 | * Flag to keep track of removed WPML filter on widget title | ||
| 34 | * | ||
| 35 | * @var boolean | ||
| 36 | * @since 3.0.0 | ||
| 37 | */ | ||
| 38 | private $removed_widget_title_filter = false; | ||
| 39 | |||
| 40 | /** | ||
| 41 | * Flag to keep track of removed WPML filter on widget text | ||
| 42 | * | ||
| 43 | * @var boolean | ||
| 44 | * @since 3.0.0 | ||
| 45 | */ | ||
| 46 | private $removed_widget_text_filter = false; | ||
| 47 | |||
| 48 | /** | ||
| 49 | * Return the single class instance | ||
| 50 | * | ||
| 51 | * @return object | ||
| 52 | * @since 3.0.0 | ||
| 53 | */ | ||
| 54 | 		public static function instance() { | ||
| 60 | |||
| 61 | /** | ||
| 62 | * Class constructor | ||
| 63 | * | ||
| 64 | * @uses add_action() | ||
| 65 | * @uses add_filter() | ||
| 66 | * | ||
| 67 | * @since 3.0.0 | ||
| 68 | */ | ||
| 69 | 		protected function __construct() { | ||
| 80 | |||
| 81 | /** | ||
| 82 | * Prevent the class from being cloned | ||
| 83 | * | ||
| 84 | * @return void | ||
| 85 | * @since 3.0.0 | ||
| 86 | */ | ||
| 87 | 		protected function __clone() { | ||
| 90 | |||
| 91 | /** | ||
| 92 | * Helper function to get WPML version | ||
| 93 | * | ||
| 94 | * @uses get_plugin_data() | ||
| 95 | * | ||
| 96 | * @return string | ||
| 97 | * @since 3.0.0 | ||
| 98 | */ | ||
| 99 | 		public function get_version() { | ||
| 103 | |||
| 104 | /** | ||
| 105 | * Initialize compatibility with WPML and WPML Widgets plugins | ||
| 106 | * | ||
| 107 | * @uses is_plugin_active() | ||
| 108 | * @uses has_action() | ||
| 109 | * @uses remove_action() | ||
| 110 | * | ||
| 111 | * @return void | ||
| 112 | * @since 3.0.0 | ||
| 113 | */ | ||
| 114 | 		public function init() { | ||
| 121 | |||
| 122 | /** | ||
| 123 | * Disable WPML String translation native behavior | ||
| 124 | * | ||
| 125 | * @uses is_plugin_active() | ||
| 126 | * @uses has_filter() | ||
| 127 | * @uses remove_filter() | ||
| 128 | * | ||
| 129 | * @param mixed[] $args Array of arguments. | ||
| 130 | * @param mixed[] $instance Widget instance. | ||
| 131 | * @return void | ||
| 132 | * @since 3.0.0 | ||
| 133 | */ | ||
| 134 | 		public function widget_before( $args, $instance ) { | ||
| 160 | |||
| 161 | /** | ||
| 162 | * Re-Enable WPML String translation native behavior | ||
| 163 | * | ||
| 164 | * @uses add_filter() | ||
| 165 | * @uses has_filter() | ||
| 166 | * | ||
| 167 | * @return void | ||
| 168 | * @since 3.0.0 | ||
| 169 | */ | ||
| 170 | 		public function widget_after() { | ||
| 188 | |||
| 189 | /** | ||
| 190 | * Add widget text to WPML String translation | ||
| 191 | * | ||
| 192 | * @uses is_plugin_active() | ||
| 193 | * @uses icl_register_string() Part of WPML | ||
| 194 | * | ||
| 195 | * @param mixed[] $instance Array of arguments. | ||
| 196 | * @param object $widget Widget instance. | ||
| 197 | * @return mixed[] | ||
| 198 | * @since 3.0.0 | ||
| 199 | */ | ||
| 200 | 		public function widget_update( $instance, $widget ) { | ||
| 214 | |||
| 215 | /** | ||
| 216 | * Translate widget text | ||
| 217 | * | ||
| 218 | * @uses is_plugin_active() | ||
| 219 | * @uses icl_t() Part of WPML | ||
| 220 | * @uses icl_st_is_registered_string() Part of WPML | ||
| 221 | * | ||
| 222 | * @param string $text Widget text. | ||
| 223 | * @param mixed[]|null $instance Widget instance. | ||
| 224 | * @param object|null $widget Widget object. | ||
| 225 | * @return string | ||
| 226 | * @since 3.0.0 | ||
| 227 | */ | ||
| 228 | 		public function widget_text( $text, $instance = null, $widget = null ) { | ||
| 243 | |||
| 244 | /** | ||
| 245 | * Check for existing deprecated translations (made with WPML String Translations plugin) and display warning | ||
| 246 | * | ||
| 247 | * @uses is_plugin_active() | ||
| 248 | * @uses icl_st_is_registered_string() Part of WPML | ||
| 249 | * @uses admin_url() | ||
| 250 | * | ||
| 251 | * @param mixed[]|null $instance Widget instance. | ||
| 252 | * @param object|null $widget Widget object. | ||
| 253 | * @return void | ||
| 254 | * @since 2.6.0 | ||
| 255 | */ | ||
| 256 | 		public function check_deprecated_translations( $instance, $widget ) { | ||
| 269 | |||
| 270 | } // END class | ||
| 271 | |||
| 273 |