Complex classes like Jetpack_VideoPress 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 Jetpack_VideoPress, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 7 | class Jetpack_VideoPress { |
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| 8 | /** @var string */ |
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| 9 | public $module = 'videopress'; |
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| 10 | |||
| 11 | /** @var int */ |
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| 12 | public $version = 5; |
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| 13 | |||
| 14 | /** |
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| 15 | * Singleton |
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| 16 | */ |
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| 17 | public static function init() { |
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| 26 | |||
| 27 | /** |
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| 28 | * Jetpack_VideoPress constructor. |
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| 29 | * |
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| 30 | * Sets up the initializer and makes sure that videopress activates and deactivates properly. |
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| 31 | */ |
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| 32 | private function __construct() { |
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| 37 | |||
| 38 | /** |
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| 39 | * Fires on init |
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| 40 | */ |
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| 41 | public function on_init() { |
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| 60 | |||
| 61 | /** |
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| 62 | * Runs when the VideoPress module is deactivated. |
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| 63 | */ |
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| 64 | public function jetpack_module_deactivated() { |
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| 67 | |||
| 68 | /** |
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| 69 | * A can of coke |
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| 70 | * |
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| 71 | * Similar to current_user_can, but internal to VideoPress. Returns |
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| 72 | * true if the given VideoPress capability is allowed by the given user. |
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| 73 | */ |
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| 74 | public function can( $cap, $user_id = false ) { |
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| 100 | |||
| 101 | /** |
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| 102 | * Returns true if the provided user is the Jetpack connection owner. |
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| 103 | */ |
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| 104 | public function is_connection_owner( $user_id = false ) { |
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| 113 | |||
| 114 | /** |
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| 115 | * Register and enqueue VideoPress admin styles. |
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| 116 | */ |
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| 117 | public function enqueue_admin_styles() { |
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| 121 | |||
| 122 | /** |
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| 123 | * Register VideoPress admin scripts. |
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| 124 | */ |
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| 125 | public function enqueue_admin_scripts() { |
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| 126 | if ( did_action( 'videopress_enqueue_admin_scripts' ) ) { |
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| 127 | return; |
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| 128 | } |
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| 129 | |||
| 130 | if ( $this->should_override_media_uploader() ) { |
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| 131 | wp_enqueue_script( |
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| 132 | 'videopress-plupload', |
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| 133 | Jetpack::get_file_url_for_environment( |
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| 134 | '_inc/build/videopress/js/videopress-plupload.min.js', |
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| 135 | 'modules/videopress/js/videopress-plupload.js' |
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| 136 | ), |
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| 137 | array( |
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| 138 | 'jquery', |
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| 139 | 'wp-plupload' |
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| 140 | ), |
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| 141 | $this->version |
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| 142 | ); |
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| 143 | |||
| 144 | wp_enqueue_script( |
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| 145 | 'videopress-uploader', |
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| 146 | Jetpack::get_file_url_for_environment( |
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| 147 | '_inc/build/videopress/js/videopress-uploader.min.js', |
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| 148 | 'modules/videopress/js/videopress-uploader.js' |
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| 149 | ), |
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| 150 | array( |
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| 151 | 'videopress-plupload' |
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| 152 | ), |
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| 153 | $this->version |
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| 154 | ); |
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| 155 | |||
| 156 | wp_enqueue_script( |
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| 157 | 'media-video-widget-extensions', |
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| 158 | Jetpack::get_file_url_for_environment( |
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| 159 | '_inc/build/videopress/js/media-video-widget-extensions.min.js', |
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| 160 | 'modules/videopress/js/media-video-widget-extensions.js' |
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| 161 | ), |
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| 162 | array(), |
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| 163 | $this->version, |
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| 164 | true |
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| 165 | ); |
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| 166 | } |
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| 167 | |||
| 168 | /** |
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| 169 | * Fires after VideoPress scripts are enqueued in the dashboard. |
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| 170 | * |
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| 171 | * @since 2.5.0 |
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| 172 | */ |
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| 173 | do_action( 'videopress_enqueue_admin_scripts' ); |
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| 174 | } |
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| 175 | |||
| 176 | /** |
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| 177 | * An override for the attachment url, which returns back the WPCOM VideoPress processed url. |
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| 178 | * |
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| 179 | * This is an action proxy to the videopress_get_attachment_url() utility function. |
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| 180 | * |
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| 181 | * @param string $url |
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| 182 | * @param int $post_id |
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| 183 | * |
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| 184 | * @return string |
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| 185 | */ |
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| 186 | public function update_attachment_url_for_videopress( $url, $post_id ) { |
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| 187 | if ( $videopress_url = videopress_get_attachment_url( $post_id ) ) { |
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| 188 | return $videopress_url; |
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| 189 | } |
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| 190 | |||
| 191 | return $url; |
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| 192 | } |
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| 193 | |||
| 194 | /** |
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| 195 | * Modify the default plupload config to turn on videopress specific filters. |
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| 196 | */ |
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| 197 | public function videopress_pluploder_config( $config ) { |
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| 198 | |||
| 199 | if ( ! isset( $config['filters']['max_file_size'] ) ) { |
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| 200 | $config['filters']['max_file_size'] = wp_max_upload_size() . 'b'; |
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| 201 | } |
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| 202 | |||
| 203 | $config['filters']['videopress_check_uploads'] = $config['filters']['max_file_size']; |
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| 204 | |||
| 205 | // We're doing our own check in the videopress_check_uploads filter. |
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| 206 | unset( $config['filters']['max_file_size'] ); |
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| 207 | |||
| 208 | return $config; |
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| 209 | } |
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| 210 | |||
| 211 | |||
| 212 | /** |
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| 213 | * Helper function to determine if the media uploader should be overridden. |
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| 214 | * |
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| 215 | * The rules are simple, only try to load the script when on the edit post or new post pages. |
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| 216 | * |
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| 217 | * @return bool |
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| 218 | */ |
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| 219 | protected function should_override_media_uploader() { |
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| 220 | global $pagenow; |
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| 221 | |||
| 222 | // Only load in the admin |
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| 223 | if ( ! is_admin() ) { |
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| 224 | return false; |
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| 225 | } |
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| 226 | |||
| 227 | $acceptable_pages = array( |
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| 228 | 'post-new.php', |
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| 229 | 'post.php', |
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| 230 | 'upload.php', |
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| 231 | 'customize.php', |
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| 232 | ); |
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| 233 | |||
| 234 | // Only load on the post, new post, or upload pages. |
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| 235 | if ( !in_array( $pagenow, $acceptable_pages ) ) { |
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| 236 | return false; |
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| 237 | } |
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| 238 | |||
| 239 | $options = VideoPress_Options::get_options(); |
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| 240 | |||
| 241 | return $options['shadow_blog_id'] > 0; |
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| 242 | } |
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| 243 | |||
| 244 | /** |
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| 245 | * A work-around / hack to make it possible to go to the media library with the add new box open. |
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| 246 | * |
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| 247 | * @return bool |
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| 248 | */ |
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| 249 | public function print_in_footer_open_media_add_new() { |
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| 250 | global $pagenow; |
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| 251 | |||
| 252 | // Only load in the admin |
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| 253 | if ( ! is_admin() ) { |
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| 254 | return false; |
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| 255 | } |
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| 256 | |||
| 257 | if ( $pagenow !== 'upload.php' ) { |
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| 258 | return false; |
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| 259 | } |
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| 260 | |||
| 261 | if ( ! isset ( $_GET['action'] ) || $_GET['action'] !== 'add-new' ) { |
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| 262 | return false; |
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| 263 | } |
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| 264 | |||
| 265 | ?> |
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| 266 | <script type="text/javascript"> |
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| 267 | ( function( $ ) { |
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| 268 | window.setTimeout( function() { |
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| 269 | $('#wp-media-grid .page-title-action').click(); |
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| 270 | }, 500 ); |
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| 271 | |||
| 272 | }( jQuery ) ); |
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| 273 | </script> |
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| 274 | <?php |
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| 275 | } |
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| 276 | |||
| 277 | /** |
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| 278 | * Makes sure that all video mimes are added in, as multi site installs can remove them. |
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| 279 | * |
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| 280 | * @param array $existing_mimes |
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| 281 | * @return array |
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| 282 | */ |
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| 283 | public function add_video_upload_mimes( $existing_mimes = array() ) { |
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| 296 | |||
| 297 | /** |
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| 298 | * Filter designed to get rid of non video mime types. |
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| 299 | * |
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| 300 | * @param string $value |
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| 301 | * @return int |
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| 302 | */ |
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| 303 | public function filter_video_mimes( $value ) { |
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| 306 | |||
| 307 | /** |
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| 308 | * @param string $icon |
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| 309 | * @param string $mime |
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| 310 | * @param int $post_id |
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| 311 | * |
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| 312 | * @return string |
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| 313 | */ |
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| 314 | public function wp_mime_type_icon( $icon, $mime, $post_id ) { |
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| 328 | |||
| 329 | /** |
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| 330 | * @param array $extensions |
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| 331 | * |
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| 332 | * @return array |
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| 333 | */ |
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| 334 | public function add_videopress_extenstion( $extensions ) { |
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| 339 | } |
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| 340 | |||
| 341 | // Initialize the module. |
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| 342 | Jetpack_VideoPress::init(); |
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| 343 |