Complex classes like FileFormFactory 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. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
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 FileFormFactory, and based on these observations, apply Extract Interface, too.
| 1 | <?php  | 
            ||
| 17 | class FileFormFactory extends AssetFormFactory  | 
            ||
| 18 | { | 
            ||
| 19 | protected function getFormFieldTabs($record, $context = [])  | 
            ||
| 35 | |||
| 36 | /**  | 
            ||
| 37 | * Build "Usage" tab  | 
            ||
| 38 | *  | 
            ||
| 39 | * @param File $record  | 
            ||
| 40 | * @param array $context  | 
            ||
| 41 | * @return Tab  | 
            ||
| 42 | */  | 
            ||
| 43 | protected function getFormFieldUsageTab($record, $context = [])  | 
            ||
| 54 | |||
| 55 | protected function getFormFieldDetailsTab($record, $context = [])  | 
            ||
| 77 | |||
| 78 | /**  | 
            ||
| 79 | * Create tab for file attributes  | 
            ||
| 80 | *  | 
            ||
| 81 | * @param File $record  | 
            ||
| 82 | * @param array $context  | 
            ||
| 83 | * @return Tab  | 
            ||
| 84 | */  | 
            ||
| 85 | protected function getFormFieldAttributesTab($record, $context = [])  | 
            ||
| 98 | |||
| 99 | protected function getFormFields(Controller $controller, $name, $context = [])  | 
            ||
| 113 | |||
| 114 | /**  | 
            ||
| 115 | * Get publish action  | 
            ||
| 116 | *  | 
            ||
| 117 | * @param File $record  | 
            ||
| 118 | * @return FormAction  | 
            ||
| 119 | */  | 
            ||
| 120 | protected function getPublishAction($record)  | 
            ||
| 132 | |||
| 133 | protected function getFormActions(Controller $controller, $name, $context = [])  | 
            ||
| 154 | |||
| 155 | /**  | 
            ||
| 156 | * Get raw HTML for image markup  | 
            ||
| 157 | *  | 
            ||
| 158 | * @param File $file  | 
            ||
| 159 | * @return string  | 
            ||
| 160 | */  | 
            ||
| 161 | protected function getIconMarkup($file)  | 
            ||
| 182 | |||
| 183 | /**  | 
            ||
| 184 | * get HTML for status icon  | 
            ||
| 185 | *  | 
            ||
| 186 | * @param File $record  | 
            ||
| 187 | * @return null|string  | 
            ||
| 188 | */  | 
            ||
| 189 | protected function getSpecsMarkup($record)  | 
            ||
| 200 | |||
| 201 | /**  | 
            ||
| 202 | * Get published status flag  | 
            ||
| 203 | *  | 
            ||
| 204 | * @param File $record  | 
            ||
| 205 | * @return null|string  | 
            ||
| 206 | */  | 
            ||
| 207 | protected function getStatusFlagMarkup($record)  | 
            ||
| 214 | |||
| 215 | /**  | 
            ||
| 216 | * Get user-visible "Path" for this record  | 
            ||
| 217 | *  | 
            ||
| 218 | * @param File $record  | 
            ||
| 219 | * @return string  | 
            ||
| 220 | */  | 
            ||
| 221 | protected function getPath($record)  | 
            ||
| 232 | |||
| 233 | /**  | 
            ||
| 234 | * Get action for adding to campaign  | 
            ||
| 235 | *  | 
            ||
| 236 | * @param File $record  | 
            ||
| 237 | * @return FormAction|null  | 
            ||
| 238 | */  | 
            ||
| 239 | protected function getAddToCampaignAction($record)  | 
            ||
| 249 | |||
| 250 | /**  | 
            ||
| 251 | * Get action for publishing  | 
            ||
| 252 | *  | 
            ||
| 253 | * @param File $record  | 
            ||
| 254 | * @return FormAction  | 
            ||
| 255 | */  | 
            ||
| 256 | protected function getUnpublishAction($record)  | 
            ||
| 271 | |||
| 272 | /**  | 
            ||
| 273 | * Build popup menu  | 
            ||
| 274 | *  | 
            ||
| 275 | * @param File $record  | 
            ||
| 276 | * @return PopoverField  | 
            ||
| 277 | */  | 
            ||
| 278 | protected function getPopoverMenu($record)  | 
            ||
| 292 | |||
| 293 | /**  | 
            ||
| 294 | * @param File $record  | 
            ||
| 295 | * @return FormAction  | 
            ||
| 296 | */  | 
            ||
| 297 | protected function getInsertAction($record)  | 
            ||
| 305 | |||
| 306 | }  | 
            ||
| 307 | 
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.