Complex classes like Admin_Menu 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 Admin_Menu, and based on these observations, apply Extract Interface, too.
1 | <?php |
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17 | class Admin_Menu extends Base_Admin_Menu { |
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18 | |||
19 | /** |
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20 | * Create the desired menu output. |
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21 | */ |
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22 | public function reregister_menu_items() { |
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23 | // Constant is not defined until parse_request. |
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24 | if ( ! $this->is_api_request ) { |
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25 | $this->is_api_request = defined( 'REST_REQUEST' ) && REST_REQUEST; |
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26 | } |
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27 | |||
28 | /* |
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29 | * Whether links should point to Calypso or wp-admin. |
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30 | * |
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31 | * Options: |
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32 | * false - Calypso (Default). |
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33 | * true - wp-admin. |
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34 | */ |
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35 | $wp_admin = $this->should_link_to_wp_admin(); |
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36 | |||
37 | // Remove separators. |
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38 | remove_menu_page( 'separator1' ); |
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39 | |||
40 | $this->add_stats_menu(); |
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41 | $this->add_upgrades_menu(); |
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42 | $this->add_posts_menu( $wp_admin ); |
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43 | $this->add_media_menu( $wp_admin ); |
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44 | $this->add_page_menu( $wp_admin ); |
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45 | $this->add_testimonials_menu( $wp_admin ); |
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46 | $this->add_portfolio_menu( $wp_admin ); |
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47 | $this->add_comments_menu( $wp_admin ); |
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48 | |||
49 | // Whether Themes/Customize links should point to Calypso (false) or wp-admin (true). |
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50 | $wp_admin_themes = $wp_admin; |
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51 | $wp_admin_customize = $wp_admin; |
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52 | $this->add_appearance_menu( $wp_admin_themes, $wp_admin_customize ); |
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53 | $this->add_plugins_menu( $wp_admin ); |
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54 | $this->add_users_menu( $wp_admin ); |
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55 | |||
56 | // Whether Import/Export links should point to Calypso (false) or wp-admin (true). |
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57 | $wp_admin_import = $wp_admin; |
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58 | $wp_admin_export = $wp_admin; |
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59 | $this->add_tools_menu( $wp_admin_import, $wp_admin_export ); |
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60 | |||
61 | $this->add_options_menu( $wp_admin ); |
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62 | $this->add_jetpack_menu(); |
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63 | $this->add_gutenberg_menus( $wp_admin ); |
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64 | |||
65 | // Remove Links Manager menu since its usage is discouraged. https://github.com/Automattic/wp-calypso/issues/51188. |
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66 | // @see https://core.trac.wordpress.org/ticket/21307#comment:73. |
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67 | if ( $this->should_disable_links_manager() ) { |
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68 | remove_menu_page( 'link-manager.php' ); |
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69 | } |
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70 | |||
71 | ksort( $GLOBALS['menu'] ); |
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72 | } |
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73 | |||
74 | /** |
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75 | * Check if Links Manager is being used. |
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76 | */ |
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77 | public function should_disable_links_manager() { |
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78 | // The max ID number of the auto-generated links. |
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79 | // See /wp-content/mu-plugins/wpcom-wp-install-defaults.php in WP.com. |
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80 | $max_default_id = 10; |
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81 | |||
82 | // We are only checking the latest entry link_id so are limiting the query to 1. |
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83 | $link_manager_links = get_bookmarks( |
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84 | array( |
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85 | 'orderby' => 'link_id', |
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86 | 'order' => 'DESC', |
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87 | 'limit' => 1, |
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88 | 'hide_invisible' => 0, |
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89 | ) |
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90 | ); |
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91 | |||
92 | // Ordered links by ID descending, check if the first ID is more than $max_default_id. |
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93 | if ( count( $link_manager_links ) > 0 && $link_manager_links[0]->link_id > $max_default_id ) { |
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94 | return false; |
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95 | } |
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96 | |||
97 | return true; |
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98 | } |
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99 | |||
100 | /** |
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101 | * Adds My Home menu. |
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102 | */ |
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103 | public function add_my_home_menu() { |
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104 | $this->update_menu( 'index.php', 'https://wordpress.com/home/' . $this->domain, __( 'My Home', 'jetpack' ), 'manage_options', 'dashicons-admin-home' ); |
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105 | } |
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106 | |||
107 | /** |
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108 | * Adds upsell nudge as a menu. |
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109 | * |
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110 | * @param object $nudge The $nudge object containing the content, CTA, link and tracks. |
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111 | */ |
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112 | public function add_upsell_nudge( $nudge ) { |
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113 | $message = ' |
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114 | <div class="upsell_banner"> |
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115 | <div class="banner__info"> |
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116 | <div class="banner__title">%1$s</div> |
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117 | </div> |
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118 | <div class="banner__action"> |
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119 | <button type="button" class="button">%2$s</button> |
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120 | </div> |
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121 | </div>'; |
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122 | |||
123 | $message = sprintf( |
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124 | $message, |
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125 | wp_kses( $nudge['content'], array() ), |
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126 | wp_kses( $nudge['cta'], array() ) |
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127 | ); |
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128 | |||
129 | add_menu_page( 'site-notices', $message, 'read', 'https://wordpress.com' . $nudge['link'], null, null, 1 ); |
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130 | add_filter( 'add_menu_classes', array( $this, 'set_site_notices_menu_class' ) ); |
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131 | } |
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132 | |||
133 | /** |
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134 | * Adds a custom element class and id for Site Notices's menu item. |
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135 | * |
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136 | * @param array $menu Associative array of administration menu items. |
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137 | * @return array |
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138 | */ |
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139 | public function set_site_notices_menu_class( array $menu ) { |
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140 | foreach ( $menu as $key => $menu_item ) { |
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141 | if ( 'site-notices' !== $menu_item[3] ) { |
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142 | continue; |
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143 | } |
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144 | |||
145 | $classes = ' toplevel_page_site-notices'; |
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146 | |||
147 | if ( isset( $menu_item[4] ) ) { |
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148 | $menu[ $key ][4] = $menu_item[4] . $classes; |
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149 | $menu[ $key ][5] = 'toplevel_page_site-notices'; |
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150 | break; |
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151 | } |
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152 | } |
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153 | |||
154 | return $menu; |
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155 | } |
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156 | |||
157 | /** |
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158 | * Adds Stats menu. |
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159 | */ |
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160 | public function add_stats_menu() { |
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163 | |||
164 | /** |
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165 | * Adds Upgrades menu. |
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166 | * |
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167 | * @param string $plan The current WPCOM plan of the blog. |
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168 | */ |
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169 | public function add_upgrades_menu( $plan = null ) { |
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204 | |||
205 | /** |
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206 | * Adds Posts menu. |
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207 | * |
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208 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso). |
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209 | */ |
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210 | public function add_posts_menu( $wp_admin = false ) { |
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223 | |||
224 | /** |
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225 | * Adds Media menu. |
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226 | * |
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227 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso). |
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228 | */ |
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229 | public function add_media_menu( $wp_admin = false ) { |
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238 | |||
239 | /** |
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240 | * Adds Page menu. |
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241 | * |
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242 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso). |
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243 | */ |
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244 | public function add_page_menu( $wp_admin = false ) { |
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255 | |||
256 | /** |
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257 | * Adds Testimonials menu. |
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258 | * |
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259 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso). |
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260 | */ |
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261 | public function add_testimonials_menu( $wp_admin = false ) { |
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264 | |||
265 | /** |
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266 | * Adds Portfolio menu. |
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267 | * |
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268 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso). |
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269 | */ |
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270 | public function add_portfolio_menu( $wp_admin = false ) { |
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273 | |||
274 | /** |
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275 | * Adds a custom post type menu. |
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276 | * |
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277 | * @param string $post_type Custom post type. |
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278 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso). |
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279 | */ |
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280 | public function add_custom_post_type_menu( $post_type, $wp_admin = false ) { |
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291 | |||
292 | /** |
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293 | * Adds Comments menu. |
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294 | * |
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295 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso). |
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296 | */ |
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297 | public function add_comments_menu( $wp_admin = false ) { |
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304 | |||
305 | /** |
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306 | * Adds Appearance menu. |
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307 | * |
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308 | * @param bool $wp_admin_themes Optional. Whether Themes link should point to Calypso or wp-admin. Default false (Calypso). |
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309 | * @param bool $wp_admin_customize Optional. Whether Customize link should point to Calypso or wp-admin. Default false (Calypso). |
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310 | * @return string The Customizer URL. |
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311 | */ |
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312 | public function add_appearance_menu( $wp_admin_themes = false, $wp_admin_customize = false ) { |
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356 | |||
357 | /** |
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358 | * Adds Plugins menu. |
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359 | * |
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360 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso). |
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361 | */ |
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362 | public function add_plugins_menu( $wp_admin = false ) { |
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372 | |||
373 | /** |
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374 | * Adds Users menu. |
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375 | * |
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376 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso). |
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377 | */ |
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378 | public function add_users_menu( $wp_admin = false ) { |
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402 | |||
403 | /** |
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404 | * Adds Tools menu. |
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405 | * |
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406 | * @param bool $wp_admin_import Optional. Whether Import link should point to Calypso or wp-admin. Default false (Calypso). |
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407 | * @param bool $wp_admin_export Optional. Whether Export link should point to Calypso or wp-admin. Default false (Calypso). |
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408 | */ |
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409 | public function add_tools_menu( $wp_admin_import = false, $wp_admin_export = false ) { |
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425 | |||
426 | /** |
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427 | * Adds Settings menu. |
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428 | * |
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429 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso). |
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430 | */ |
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431 | public function add_options_menu( $wp_admin = false ) { |
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445 | |||
446 | /** |
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447 | * Adds Jetpack menu. |
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448 | */ |
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449 | public function add_jetpack_menu() { |
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474 | |||
475 | /** |
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476 | * Re-adds the Site Editor menu without the (beta) tag, and where we want it. |
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477 | * |
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478 | * @param bool $wp_admin Optional. Whether links should point to Calypso or wp-admin. Default false (Calypso). |
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479 | */ |
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480 | public function add_gutenberg_menus( $wp_admin = false ) { |
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503 | |||
504 | /** |
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505 | * Whether to use wp-admin pages rather than Calypso. |
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506 | * |
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507 | * @return bool |
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508 | */ |
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509 | public function should_link_to_wp_admin() { |
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512 | } |
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513 |
This check looks for
@param
annotations where the type inferred by our type inference engine differs from the declared type.It makes a suggestion as to what type it considers more descriptive.
Most often this is a case of a parameter that can be null in addition to its declared types.