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() { |
||
82 | |||
83 | /** |
||
84 | * Prevent the class from being cloned |
||
85 | * |
||
86 | * @return void |
||
87 | * @since 3.0.0 |
||
88 | */ |
||
89 | protected function __clone() { |
||
92 | |||
93 | /** |
||
94 | * Helper function to get WPML version |
||
95 | * |
||
96 | * @uses get_plugin_data() |
||
97 | * |
||
98 | * @return string |
||
99 | * @since 3.0.0 |
||
100 | */ |
||
101 | public function get_version() { |
||
105 | |||
106 | /** |
||
107 | * Initialize compatibility with WPML and WPML Widgets plugins |
||
108 | * |
||
109 | * @uses is_plugin_active() |
||
110 | * @uses has_action() |
||
111 | * @uses remove_action() |
||
112 | * |
||
113 | * @return void |
||
114 | * @since 3.0.0 |
||
115 | */ |
||
116 | public function init() { |
||
123 | |||
124 | /** |
||
125 | * Avoid native WPML string translation of widget titles |
||
126 | * for widgets inserted in pages built with Page Builder (SiteOrigin panels) |
||
127 | * and also when WPML Widgets is active and for WPML versions from 3.8.0 on |
||
128 | * |
||
129 | * @uses is_plugin_active() |
||
130 | * @uses has_filter() |
||
131 | * @uses remove_filter() |
||
132 | * |
||
133 | * @param mixed[] $args Array of arguments. |
||
134 | * @param mixed[] $instance Widget instance. |
||
135 | * @return void |
||
136 | * @since 3.0.0 |
||
137 | */ |
||
138 | public function disable_title_translation( $args, $instance ) { |
||
148 | |||
149 | /** |
||
150 | * Avoid native WPML string translation of widget texts (for all widgets) |
||
151 | * Note: Black Studio TinyMCE Widget already supports WPML string translation, |
||
152 | * so this is needed to prevent duplicate translations |
||
153 | * |
||
154 | * @uses is_plugin_active() |
||
155 | * @uses has_filter() |
||
156 | * @uses remove_filter() |
||
157 | * |
||
158 | * @return void |
||
159 | * @since 3.0.0 |
||
160 | */ |
||
161 | public function disable_text_translation() { |
||
169 | |||
170 | /** |
||
171 | * Restore widget title's native WPML string translation filter if it was removed |
||
172 | * |
||
173 | * @uses add_filter() |
||
174 | * @uses has_filter() |
||
175 | * |
||
176 | * @return void |
||
177 | * @since 3.0.0 |
||
178 | */ |
||
179 | public function restore_title_translation() { |
||
189 | |||
190 | /** |
||
191 | * Restore widget text's native WPML string translation filter if it was removed |
||
192 | * |
||
193 | * @uses add_filter() |
||
194 | * @uses has_filter() |
||
195 | * |
||
196 | * @return void |
||
197 | * @since 3.0.0 |
||
198 | */ |
||
199 | public function restore_text_translation() { |
||
209 | |||
210 | /** |
||
211 | * Add widget text to WPML String translation |
||
212 | * |
||
213 | * @uses is_plugin_active() |
||
214 | * @uses icl_register_string() Part of WPML |
||
215 | * |
||
216 | * @param mixed[] $instance Array of arguments. |
||
217 | * @param object $widget Widget instance. |
||
218 | * @return mixed[] |
||
219 | * @since 3.0.0 |
||
220 | */ |
||
221 | public function widget_update( $instance, $widget ) { |
||
235 | |||
236 | /** |
||
237 | * Translate widget text |
||
238 | * |
||
239 | * @uses is_plugin_active() |
||
240 | * @uses icl_t() Part of WPML |
||
241 | * @uses icl_st_is_registered_string() Part of WPML |
||
242 | * |
||
243 | * @param string $text Widget text. |
||
244 | * @param mixed[]|null $instance Widget instance. |
||
245 | * @param object|null $widget Widget object. |
||
246 | * @return string |
||
247 | * @since 3.0.0 |
||
248 | */ |
||
249 | public function widget_text( $text, $instance = null, $widget = null ) { |
||
264 | |||
265 | /** |
||
266 | * Check for existing deprecated translations (made with WPML String Translations plugin) and display warning |
||
267 | * |
||
268 | * @uses is_plugin_active() |
||
269 | * @uses icl_st_is_registered_string() Part of WPML |
||
270 | * @uses admin_url() |
||
271 | * |
||
272 | * @param mixed[]|null $instance Widget instance. |
||
273 | * @param object|null $widget Widget object. |
||
274 | * @return void |
||
275 | * @since 2.6.0 |
||
276 | */ |
||
277 | public function check_deprecated_translations( $instance, $widget ) { |
||
291 | |||
292 | } // END class |
||
293 | |||
295 |