Automattic /
jetpack
Complex classes like WordAds 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 WordAds, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 14 | class WordAds { |
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| 15 | |||
| 16 | public $params = null; |
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| 17 | |||
| 18 | /** |
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| 19 | * The different supported ad types. |
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| 20 | * v0.1 - mrec only for now |
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| 21 | * @var array |
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| 22 | */ |
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| 23 | public static $ad_tag_ids = array( |
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| 24 | 'mrec' => array( |
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| 25 | 'tag' => '300x250_mediumrectangle', |
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| 26 | 'height' => '250', |
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| 27 | 'width' => '300', |
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| 28 | ), |
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| 29 | 'lrec' => array( |
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| 30 | 'tag' => '336x280_largerectangle', |
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| 31 | 'height' => '280', |
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| 32 | 'width' => '336', |
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| 33 | ), |
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| 34 | 'leaderboard' => array( |
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| 35 | 'tag' => '728x90_leaderboard', |
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| 36 | 'height' => '90', |
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| 37 | 'width' => '728', |
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| 38 | ), |
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| 39 | 'wideskyscraper' => array( |
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| 40 | 'tag' => '160x600_wideskyscraper', |
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| 41 | 'height' => '600', |
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| 42 | 'width' => '160', |
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| 43 | ), |
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| 44 | ); |
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| 45 | |||
| 46 | /** |
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| 47 | * Convenience function for grabbing options from params->options |
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| 48 | * @param string $option the option to grab |
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| 49 | * @param mixed $default (optional) |
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| 50 | * @return option or $default if not set |
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| 51 | * |
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| 52 | * @since 4.5.0 |
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| 53 | */ |
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| 54 | function option( $option, $default = false ) { |
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| 55 | if ( ! isset( $this->params->options[ $option ] ) ) { |
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| 56 | return $default; |
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| 57 | } |
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| 58 | |||
| 59 | return $this->params->options[ $option ]; |
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| 60 | } |
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| 61 | |||
| 62 | /** |
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| 63 | * Instantiate the plugin |
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| 64 | * |
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| 65 | * @since 4.5.0 |
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| 66 | */ |
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| 67 | function __construct() { |
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| 68 | add_action( 'init', array( $this, 'init' ) ); |
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| 69 | } |
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| 70 | |||
| 71 | /** |
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| 72 | * Code to run on WordPress 'init' hook |
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| 73 | * |
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| 74 | * @since 4.5.0 |
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| 75 | */ |
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| 76 | function init() { |
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| 77 | // bail on infinite scroll |
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| 78 | if ( self::is_infinite_scroll() ) { |
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| 79 | return; |
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| 80 | } |
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| 81 | |||
| 82 | require_once( WORDADS_ROOT . '/php/params.php' ); |
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| 83 | $this->params = new WordAds_Params(); |
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| 84 | |||
| 85 | if ( is_admin() ) { |
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| 86 | require_once( WORDADS_ROOT . '/php/admin.php' ); |
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| 87 | return; |
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| 88 | } |
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| 89 | |||
| 90 | if ( $this->should_bail() ) { |
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| 91 | return; |
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| 92 | } |
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| 93 | |||
| 94 | $this->insert_adcode(); |
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| 95 | } |
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| 96 | |||
| 97 | /** |
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| 98 | * Check for Jetpack's The_Neverending_Home_Page and use got_infinity |
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| 99 | * @return boolean true if load came from infinite scroll |
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| 100 | * |
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| 101 | * @since 4.5.0 |
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| 102 | */ |
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| 103 | public static function is_infinite_scroll() { |
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| 106 | |||
| 107 | /** |
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| 108 | * Add the actions/filters to insert the ads. Checks for mobile or desktop. |
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| 109 | * |
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| 110 | * @since 4.5.0 |
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| 111 | */ |
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| 112 | private function insert_adcode() { |
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| 160 | |||
| 161 | /** |
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| 162 | * Register desktop scripts and styles |
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| 163 | * |
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| 164 | * @since 4.5.0 |
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| 165 | */ |
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| 166 | function enqueue_scripts() { |
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| 174 | |||
| 175 | /** |
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| 176 | * IPONWEB metadata used by the various scripts |
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| 177 | * @return [type] [description] |
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| 178 | */ |
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| 179 | function insert_head_meta() { |
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| 193 | |||
| 194 | /** |
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| 195 | * IPONWEB scripts in <head> |
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| 196 | * |
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| 197 | * @since 4.5.0 |
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| 198 | */ |
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| 199 | function insert_head_iponweb() { |
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| 222 | |||
| 223 | /** |
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| 224 | * Insert the ad onto the page |
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| 225 | * |
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| 226 | * @since 4.5.0 |
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| 227 | */ |
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| 228 | function insert_ad( $content ) { |
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| 250 | |||
| 251 | /** |
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| 252 | * Inserts ad into header |
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| 253 | * |
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| 254 | * @since 4.5.0 |
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| 255 | */ |
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| 256 | function insert_header_ad() { |
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| 273 | |||
| 274 | /** |
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| 275 | * Special cases for inserting header unit via jQuery |
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| 276 | * |
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| 277 | * @since 4.5.0 |
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| 278 | */ |
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| 279 | function insert_header_ad_special() { |
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| 314 | |||
| 315 | /** |
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| 316 | * Get the ad for the spot and type. |
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| 317 | * @param string $spot top, side, or belowpost |
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| 318 | * @param string $type iponweb or adsense |
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| 319 | */ |
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| 320 | function get_ad( $spot, $type = 'iponweb' ) { |
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| 368 | |||
| 369 | |||
| 370 | /** |
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| 371 | * Returns the snippet to be inserted into the ad unit |
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| 372 | * @param int $section_id |
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| 373 | * @param int $height |
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| 374 | * @param int $width |
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| 375 | * @param string $css |
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| 376 | * @return string |
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| 377 | * |
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| 378 | * @since 5.7 |
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| 379 | */ |
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| 380 | function get_ad_snippet( $section_id, $height, $width, $adblock_unit = 'mrec', $css = '' ) { |
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| 403 | |||
| 404 | /** |
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| 405 | * Get Criteo Acceptable Ad unit |
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| 406 | * @param string $unit mrec, mrec2, widesky, top, top_mrec |
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| 407 | * |
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| 408 | * @since 5.3 |
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| 409 | */ |
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| 410 | public function get_adblocker_ad( $unit = 'mrec' ) { |
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| 437 | |||
| 438 | /** |
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| 439 | * Check the reasons to bail before we attempt to insert ads. |
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| 440 | * @return true if we should bail (don't insert ads) |
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| 441 | * |
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| 442 | * @since 4.5.0 |
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| 443 | */ |
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| 444 | public function should_bail() { |
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| 447 | |||
| 448 | /** |
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| 449 | * Returns markup for HTML5 house ad base on unit |
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| 450 | * @param string $unit mrec, widesky, or leaderboard |
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| 451 | * @return string markup for HTML5 house ad |
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| 452 | * |
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| 453 | * @since 4.7.0 |
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| 454 | */ |
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| 455 | public function get_house_ad( $unit = 'mrec' ) { |
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| 482 | |||
| 483 | /** |
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| 484 | * Activation hook actions |
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| 485 | * |
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| 486 | * @since 4.5.0 |
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| 487 | */ |
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| 488 | public static function activate() { |
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| 491 | } |
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| 492 | |||
| 499 |
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