Automattic /
jetpack
Complex classes like Jetpack_Widgets 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_Widgets, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 13 | class Jetpack_Widgets { |
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| 14 | |||
| 15 | /** |
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| 16 | * Returns the `sidebars_widgets` option with the `array_version` element removed. |
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| 17 | * |
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| 18 | * @return array The current value of sidebars_widgets |
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| 19 | */ |
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| 20 | public static function get_sidebars_widgets() { |
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| 27 | |||
| 28 | /** |
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| 29 | * Format widget data for output and for use by other widget functions. |
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| 30 | * |
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| 31 | * The output looks like: |
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| 32 | * |
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| 33 | * array( |
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| 34 | * 'id' => 'text-3', |
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| 35 | * 'sidebar' => 'sidebar-1', |
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| 36 | * 'position' => '0', |
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| 37 | * 'settings' => array( |
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| 38 | * 'title' => 'hello world' |
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| 39 | * ) |
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| 40 | * ) |
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| 41 | * |
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| 42 | * |
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| 43 | * @param string|integer $position The position of the widget in its sidebar. |
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| 44 | * @param string $widget_id The widget's id (eg: 'text-3'). |
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| 45 | * @param string $sidebar The widget's sidebar id (eg: 'sidebar-1'). |
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| 46 | * @param array (Optional) $settings The settings for the widget. |
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| 47 | * |
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| 48 | * @return array A normalized array representing this widget. |
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| 49 | */ |
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| 50 | public static function format_widget( $position, $widget_id, $sidebar, $settings = null ) { |
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| 66 | |||
| 67 | /** |
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| 68 | * Return a widget's id_base from its id. |
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| 69 | * |
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| 70 | * @param string $widget_id The id of a widget. (eg: 'text-3') |
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| 71 | * |
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| 72 | * @return string The id_base of a widget (eg: 'text'). |
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| 73 | */ |
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| 74 | public static function get_widget_id_base( $widget_id ) { |
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| 78 | |||
| 79 | /** |
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| 80 | * Determine a widget's option name (the WP option where the widget's settings |
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| 81 | * are stored - generally `widget_` + the widget's id_base). |
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| 82 | * |
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| 83 | * @param string $widget_id The id of a widget. (eg: 'text-3') |
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| 84 | * |
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| 85 | * @return string The option name of the widget's settings. (eg: 'widget_text') |
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| 86 | */ |
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| 87 | public static function get_widget_option_name( $widget_id ) { |
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| 90 | |||
| 91 | /** |
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| 92 | * Determine a widget instance key from its ID. (eg: 'text-3' becomes '3'). |
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| 93 | * Used to access the widget's settings. |
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| 94 | * |
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| 95 | * @param string $widget_id The id of a widget. |
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| 96 | * |
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| 97 | * @return integer The instance key of that widget. |
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| 98 | */ |
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| 99 | public static function get_widget_instance_key( $widget_id ) { |
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| 105 | |||
| 106 | /** |
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| 107 | * Return a widget by ID (formatted for output) or null if nothing is found. |
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| 108 | * |
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| 109 | * @param string $widget_id The id of a widget to look for. |
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| 110 | * |
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| 111 | * @return array|null The matching formatted widget (see format_widget). |
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| 112 | */ |
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| 113 | public static function get_widget_by_id( $widget_id ) { |
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| 114 | foreach ( self::get_all_widgets() as $widget ) { |
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| 115 | if ( $widget['id'] === $widget_id ) { |
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| 116 | return $widget; |
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| 117 | } |
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| 118 | } |
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| 119 | return null; |
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| 120 | } |
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| 121 | |||
| 122 | /** |
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| 123 | * Return a widget by base ID or null if nothing is found. |
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| 124 | * |
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| 125 | * @param string $id_base The id of a widget to look for. |
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| 126 | * |
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| 127 | * @return array|null The matching formatted widget (see format_widget). |
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| 128 | */ |
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| 129 | public static function get_widget_by_id_base( $id_base ) { |
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| 130 | foreach ( self::get_all_widgets() as $widget ) { |
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| 131 | if ( $widget['id_base'] === $id_base ) { |
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| 132 | return $widget; |
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| 133 | } |
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| 134 | } |
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| 135 | return null; |
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| 136 | } |
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| 137 | |||
| 138 | /** |
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| 139 | * Return an array of all widgets (active and inactive) formatted for output. |
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| 140 | * |
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| 141 | * @return array An array of all widgets (see format_widget). |
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| 142 | */ |
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| 143 | public static function get_all_widgets() { |
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| 144 | $all_widgets = array(); |
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| 145 | $sidebars_widgets = self::get_all_sidebars(); |
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| 146 | |||
| 147 | foreach ( $sidebars_widgets as $sidebar => $widgets ) { |
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| 148 | if ( ! is_array( $widgets ) ) { |
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| 149 | continue; |
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| 150 | } |
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| 151 | foreach ( $widgets as $key => $widget_id ) { |
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| 152 | array_push( $all_widgets, self::format_widget( $key, $widget_id, $sidebar ) ); |
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| 153 | } |
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| 154 | } |
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| 155 | |||
| 156 | return $all_widgets; |
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| 157 | } |
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| 158 | |||
| 159 | /** |
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| 160 | * Return an array of all active widgets formatted for output. |
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| 161 | * |
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| 162 | * @return array An array of all active widgets (see format_widget). |
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| 163 | */ |
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| 164 | public static function get_active_widgets() { |
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| 165 | $active_widgets = array(); |
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| 166 | $all_widgets = self::get_all_widgets(); |
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| 167 | foreach( $all_widgets as $widget ) { |
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| 168 | if ( 'wp_inactive_widgets' === $widget['sidebar'] ) { |
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| 169 | continue; |
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| 170 | } |
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| 171 | array_push( $active_widgets, $widget ); |
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| 172 | } |
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| 173 | return $active_widgets; |
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| 174 | } |
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| 175 | |||
| 176 | /** |
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| 177 | * Return an array of all widget IDs (active and inactive) |
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| 178 | * |
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| 179 | * @return array An array of all widget IDs. |
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| 180 | */ |
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| 181 | public static function get_all_widget_ids() { |
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| 182 | $all_widgets = array(); |
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| 183 | $sidebars_widgets = self::get_all_sidebars(); |
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| 184 | foreach ( array_values( $sidebars_widgets ) as $widgets ) { |
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| 185 | if ( ! is_array( $widgets ) ) { |
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| 186 | continue; |
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| 187 | } |
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| 188 | foreach ( array_values( $widgets ) as $widget_id ) { |
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| 189 | array_push( $all_widgets, $widget_id ); |
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| 190 | } |
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| 191 | } |
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| 192 | return $all_widgets; |
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| 193 | } |
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| 194 | |||
| 195 | /** |
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| 196 | * Return an array of widgets with a specific id_base (eg: `text`). |
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| 197 | * |
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| 198 | * @param string $id_base The id_base of a widget type. |
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| 199 | * |
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| 200 | * @return array All the formatted widgets matching that widget type (see format_widget). |
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| 201 | */ |
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| 202 | public static function get_widgets_with_id_base( $id_base ) { |
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| 203 | $matching_widgets = array(); |
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| 204 | foreach ( self::get_all_widgets() as $widget ) { |
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| 205 | if ( self::get_widget_id_base( $widget['id'] ) === $id_base ) { |
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| 206 | array_push( $matching_widgets, $widget ); |
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| 207 | } |
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| 208 | } |
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| 209 | return $matching_widgets; |
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| 210 | } |
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| 211 | |||
| 212 | /** |
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| 213 | * Return the array of widget IDs in a sidebar or null if that sidebar does |
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| 214 | * not exist. Will return an empty array for an existing empty sidebar. |
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| 215 | * |
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| 216 | * @param string $sidebar The id of a sidebar. |
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| 217 | * |
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| 218 | * @return array|null The array of widget IDs in the sidebar. |
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| 219 | */ |
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| 220 | public static function get_widgets_in_sidebar( $sidebar ) { |
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| 221 | $sidebars = self::get_all_sidebars(); |
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| 222 | |||
| 223 | if ( ! $sidebars || ! is_array( $sidebars ) ) { |
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|
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| 224 | return null; |
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| 225 | } |
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| 226 | if ( ! $sidebars[ $sidebar ] && array_key_exists( $sidebar, $sidebars ) ) { |
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| 227 | return array(); |
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| 228 | } |
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| 229 | return $sidebars[ $sidebar ]; |
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| 230 | } |
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| 231 | |||
| 232 | /** |
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| 233 | * Return an associative array of all registered sidebars for this theme, |
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| 234 | * active and inactive, including the hidden disabled widgets sidebar (keyed |
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| 235 | * by `wp_inactive_widgets`). Each sidebar is keyed by the ID of the sidebar |
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| 236 | * and its value is an array of widget IDs for that sidebar. |
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| 237 | * |
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| 238 | * @return array An associative array of all sidebars and their widget IDs. |
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| 239 | */ |
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| 240 | public static function get_all_sidebars() { |
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| 241 | $sidebars_widgets = self::get_sidebars_widgets(); |
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| 242 | |||
| 243 | if ( ! is_array( $sidebars_widgets ) ) { |
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| 244 | return array(); |
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| 245 | } |
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| 246 | return $sidebars_widgets; |
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| 247 | } |
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| 248 | |||
| 249 | /** |
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| 250 | * Return an associative array of all active sidebars for this theme, Each |
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| 251 | * sidebar is keyed by the ID of the sidebar and its value is an array of |
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| 252 | * widget IDs for that sidebar. |
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| 253 | * |
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| 254 | * @return array An associative array of all active sidebars and their widget IDs. |
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| 255 | */ |
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| 256 | public static function get_active_sidebars() { |
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| 257 | $sidebars = array(); |
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| 258 | foreach ( self::get_all_sidebars() as $sidebar => $widgets ) { |
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| 259 | if ( 'wp_inactive_widgets' === $sidebar || ! isset( $widgets ) || ! is_array( $widgets ) ) { |
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| 260 | continue; |
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| 261 | } |
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| 262 | $sidebars[ $sidebar ] = $widgets; |
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| 263 | } |
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| 264 | return $sidebars; |
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| 265 | } |
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| 266 | |||
| 267 | /** |
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| 268 | * Activates a widget in a sidebar. Does not validate that the sidebar exists, |
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| 269 | * so please do that first. Also does not save the widget's settings. Please |
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| 270 | * do that with `set_widget_settings`. |
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| 271 | * |
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| 272 | * If position is not set, it will be set to the next available position. |
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| 273 | * |
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| 274 | * @param string $widget_id The newly-formed id of the widget to be added. |
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| 275 | * @param string $sidebar The id of the sidebar where the widget will be added. |
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| 276 | * @param string|integer $position (Optional) The position within the sidebar where the widget will be added. |
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| 277 | * |
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| 278 | * @return bool |
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| 279 | */ |
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| 280 | public static function add_widget_to_sidebar( $widget_id, $sidebar, $position ) { |
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| 281 | return self::move_widget_to_sidebar( array( 'id' => $widget_id ), $sidebar, $position ); |
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| 282 | } |
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| 283 | |||
| 284 | /** |
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| 285 | * Removes a widget from a sidebar. Does not validate that the sidebar exists |
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| 286 | * or remove any settings from the widget, so please do that separately. |
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| 287 | * |
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| 288 | * @param array $widget The widget to be removed. |
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| 289 | */ |
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| 290 | public static function remove_widget_from_sidebar( $widget ) { |
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| 291 | $sidebars_widgets = self::get_sidebars_widgets(); |
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| 292 | // Remove the widget from its old location and reflow the positions of the remaining widgets. |
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| 293 | array_splice( $sidebars_widgets[ $widget['sidebar'] ], $widget['position'], 1 ); |
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| 294 | |||
| 295 | update_option( 'sidebars_widgets', $sidebars_widgets ); |
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| 296 | } |
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| 297 | |||
| 298 | /** |
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| 299 | * Moves a widget to a sidebar. Does not validate that the sidebar exists, |
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| 300 | * so please do that first. Also does not save the widget's settings. Please |
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| 301 | * do that with `set_widget_settings`. The first argument should be a |
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| 302 | * widget as returned by `format_widget` including `id`, `sidebar`, and |
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| 303 | * `position`. |
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| 304 | * |
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| 305 | * If $position is not set, it will be set to the next available position. |
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| 306 | * |
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| 307 | * Can be used to add a new widget to a sidebar if |
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| 308 | * $widget['sidebar'] === NULL |
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| 309 | * |
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| 310 | * Can be used to move a widget within a sidebar as well if |
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| 311 | * $widget['sidebar'] === $sidebar. |
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| 312 | * |
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| 313 | * @param array $widget The widget to be moved (see format_widget). |
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| 314 | * @param string $sidebar The sidebar where this widget will be moved. |
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| 315 | * @param string|integer $position (Optional) The position where this widget will be moved in the sidebar. |
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| 316 | * |
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| 317 | * @return bool |
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| 318 | */ |
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| 319 | public static function move_widget_to_sidebar( $widget, $sidebar, $position ) { |
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| 320 | $sidebars_widgets = self::get_sidebars_widgets(); |
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| 321 | |||
| 322 | // If a position is passed and the sidebar isn't empty, |
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| 323 | // splice the widget into the sidebar, update the sidebar option, and return the result |
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| 324 | if ( isset( $widget['sidebar'] ) && isset( $widget['position'] ) ) { |
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| 325 | array_splice( $sidebars_widgets[ $widget['sidebar'] ], $widget['position'], 1 ); |
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| 326 | } |
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| 327 | |||
| 328 | // Sometimes an existing empty sidebar is NULL, so initialize it. |
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| 329 | if ( array_key_exists( $sidebar, $sidebars_widgets ) && ! is_array( $sidebars_widgets[ $sidebar ] ) ) { |
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| 330 | $sidebars_widgets[ $sidebar ] = array(); |
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| 331 | } |
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| 332 | |||
| 333 | // If no position is passed, set one from items in sidebar |
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| 334 | if ( ! isset( $position ) ) { |
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| 335 | $position = 0; |
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| 336 | $last_position = self::get_last_position_in_sidebar( $sidebar ); |
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| 337 | if ( isset( $last_position ) && is_numeric( $last_position ) ) { |
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| 338 | $position = $last_position + 1; |
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| 339 | } |
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| 340 | } |
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| 341 | |||
| 342 | // Add the widget to the sidebar and reflow the positions of the other widgets. |
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| 343 | if ( empty( $sidebars_widgets[ $sidebar ] ) ) { |
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| 344 | $sidebars_widgets[ $sidebar ][] = $widget['id']; |
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| 345 | } else { |
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| 346 | array_splice( $sidebars_widgets[ $sidebar ], (int)$position, 0, $widget['id'] ); |
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| 347 | } |
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| 348 | |||
| 349 | set_theme_mod( 'sidebars_widgets', array( 'time' => time(), 'data' => $sidebars_widgets ) ); |
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| 350 | return update_option( 'sidebars_widgets', $sidebars_widgets ); |
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| 351 | } |
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| 352 | |||
| 353 | /** |
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| 354 | * Return an integer containing the largest position number in a sidebar or |
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| 355 | * null if there are no widgets in that sidebar. |
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| 356 | * |
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| 357 | * @param string $sidebar The id of a sidebar. |
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| 358 | * |
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| 359 | * @return integer|null The last index position of a widget in that sidebar. |
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| 360 | */ |
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| 361 | public static function get_last_position_in_sidebar( $sidebar ) { |
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| 362 | $widgets = self::get_widgets_in_sidebar( $sidebar ); |
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| 363 | if ( ! $widgets ) { |
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| 364 | return null; |
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| 365 | } |
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| 366 | $last_position = 0; |
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| 367 | foreach ( $widgets as $widget_id ) { |
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| 368 | $widget = self::get_widget_by_id( $widget_id ); |
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| 369 | if ( intval( $widget['position'] ) > intval( $last_position ) ) { |
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| 370 | $last_position = intval( $widget['position'] ); |
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| 371 | } |
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| 372 | } |
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| 373 | return $last_position; |
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| 374 | } |
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| 375 | |||
| 376 | /** |
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| 377 | * Saves settings for a widget. Does not add that widget to a sidebar. Please |
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| 378 | * do that with `move_widget_to_sidebar` first. Will merge the settings of |
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| 379 | * any existing widget with the same `$widget_id`. |
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| 380 | * |
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| 381 | * @param string $widget_id The id of a widget. |
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| 382 | * @param array $settings An associative array of settings to merge with any existing settings on this widget. |
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| 383 | * |
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| 384 | * @return boolean|WP_Error True if update was successful. |
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| 385 | */ |
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| 386 | public static function set_widget_settings( $widget_id, $settings ) { |
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| 387 | $widget_option_name = self::get_widget_option_name( $widget_id ); |
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| 388 | $widget_settings = get_option( $widget_option_name ); |
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| 389 | $instance_key = self::get_widget_instance_key( $widget_id ); |
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| 390 | |||
| 391 | if ( ! $widget = self::get_registered_widget_object( self::get_widget_id_base( $widget_id ) ) ) { |
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| 392 | return new WP_Error( 'invalid_data', 'Invalid ID base.', 400 ); |
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| 393 | } |
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| 394 | |||
| 395 | // if the widget's content already exists |
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| 396 | if ( isset( $widget_settings[ $instance_key ] ) ) { |
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| 397 | $old_settings = $widget_settings[ $instance_key ]; |
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| 398 | |||
| 399 | if ( ! $settings = self::sanitize_widget_settings( $widget_id, $settings, $old_settings ) ) { |
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| 400 | return new WP_Error( 'invalid_data', 'Update failed.', 400 ); |
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| 401 | } |
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| 402 | if ( is_array( $old_settings ) ) { |
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| 403 | // array_filter prevents empty arguments from replacing existing ones |
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| 404 | $settings = wp_parse_args( array_filter( $settings ), $old_settings ); |
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| 405 | } |
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| 406 | } |
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| 407 | $widget_settings[ $instance_key ] = $settings; |
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| 408 | |||
| 409 | return update_option( $widget_option_name, $widget_settings ); |
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| 410 | } |
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| 411 | |||
| 412 | /** |
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| 413 | * Sanitize an associative array for saving. |
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| 414 | * |
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| 415 | * @param string $widget_id The id of a widget. |
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| 416 | * @param array $settings A widget settings array. |
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| 417 | * @param array $old_settings The existing widget settings array. |
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| 418 | * |
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| 419 | * @return array|false The settings array sanitized by `WP_Widget::update` or false if sanitization failed. |
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| 420 | */ |
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| 421 | private static function sanitize_widget_settings( $widget_id, $settings, $old_settings ) { |
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| 431 | |||
| 432 | /** |
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| 433 | * Deletes settings for a widget. Does not remove that widget to a sidebar. Please |
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| 434 | * do that with `remove_widget_from_sidebar` first. |
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| 435 | * |
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| 436 | * @param array $widget The widget which will have its settings removed (see format_widget). |
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| 437 | */ |
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| 438 | public static function remove_widget_settings( $widget ) { |
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| 444 | |||
| 445 | /** |
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| 446 | * Update a widget's settings, sidebar, and position. Returns the (updated) |
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| 447 | * formatted widget if successful or a WP_Error if it fails. |
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| 448 | * |
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| 449 | * @param string $widget_id The id of a widget to update. |
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| 450 | * @param string $sidebar (Optional) A sidebar to which this widget will be moved. |
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| 451 | * @param string|integer (Optional) A new position to which this widget will be moved within its new or existing sidebar. |
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| 452 | * @param array|object|string $settings Settings to merge with the existing settings of the widget (will be passed through `decode_settings`). |
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| 453 | * |
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| 454 | * @return array|WP_Error The newly added widget as an associative array with all the above properties. |
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| 455 | */ |
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| 456 | public static function update_widget( $widget_id, $sidebar, $position, $settings ) { |
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| 457 | $settings = self::decode_settings( $settings ); |
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| 458 | if ( isset( $settings ) && ! is_array( $settings ) ) { |
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| 496 | |||
| 497 | /** |
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| 498 | * Retrieve the first active sidebar |
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| 499 | * |
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| 500 | * @return array|false Active sidebar or false if none exists |
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| 501 | */ |
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| 502 | public function get_first_sidebar() { |
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| 512 | |||
| 513 | /** |
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| 514 | * Find a widget in a list of all widgets retrieved from a sidebar |
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| 515 | * using get_widgets_in_sidebar() |
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| 516 | * @param string $widget The widget we want to look up in the sidebar |
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| 517 | * |
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| 518 | * @param string $widgets_all the array of widget is' in a given sidebar |
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| 519 | * |
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| 520 | * @return bool Whether present. |
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| 521 | */ |
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| 522 | public static function is_widget_in_sidebar( $widgets_all, $widget_id ) { |
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| 530 | |||
| 531 | /** |
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| 532 | * Deletes a widget entirely including all its settings. Returns a WP_Error if |
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| 533 | * the widget could not be found. Otherwise returns an empty array. |
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| 534 | * |
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| 535 | * @param string $widget_id The id of a widget to delete. (eg: 'text-2') |
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| 536 | * |
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| 537 | * @return array|WP_Error An empty array if successful. |
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| 538 | */ |
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| 539 | public static function delete_widget( $widget_id ) { |
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| 548 | |||
| 549 | /** |
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| 550 | * Return an array of settings. The input can be either an object, a JSON |
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| 551 | * string, or an array. |
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| 552 | * |
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| 553 | * @param array|string|object $settings The settings of a widget as passed into the API. |
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| 554 | * |
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| 555 | * @return array Decoded associative array of settings. |
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| 556 | */ |
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| 557 | public static function decode_settings( $settings ) { |
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| 571 | |||
| 572 | /** |
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| 573 | * Activate a new widget. |
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| 574 | * |
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| 575 | * @param string $id_base The id_base of the new widget (eg: 'text') |
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| 576 | * @param string $sidebar The id of the sidebar where this widget will go. Dependent on theme. (eg: 'sidebar-1') |
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| 577 | * @param string|integer $position (Optional) The position of the widget in the sidebar. Defaults to the last position. |
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| 578 | * @param array|object|string $settings (Optional) An associative array of settings for this widget (will be passed through `decode_settings`). Varies by widget. |
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| 579 | * |
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| 580 | * @return array|WP_Error The newly added widget as an associative array with all the above properties except 'id_base' replaced with the generated 'id'. |
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| 581 | */ |
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| 582 | public static function activate_widget( $id_base, $sidebar, $position, $settings ) { |
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| 631 | |||
| 632 | /** |
||
| 633 | * Activate an array of new widgets. Like calling `activate_widget` multiple times. |
||
| 634 | * |
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| 635 | * @param array $widgets An array of widget arrays. Each sub-array must be of the format required by `activate_widget`. |
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| 636 | * |
||
| 637 | * @return array|WP_Error The newly added widgets in the form returned by `get_all_widgets`. |
||
| 638 | */ |
||
| 639 | public static function activate_widgets( $widgets ) { |
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| 652 | |||
| 653 | /** |
||
| 654 | * Return the last instance key (integer) of an existing widget matching |
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| 655 | * `$id_base`. So if you pass in `text`, and there is a widget with the id |
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| 656 | * `text-2`, this function will return `2`. |
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| 657 | * |
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| 658 | * @param string $id_base The id_base of a type of widget. (eg: 'rss') |
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| 659 | * |
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| 660 | * @return integer The last instance key of that type of widget. |
||
| 661 | */ |
||
| 662 | public static function get_last_widget_instance_key_with_id_base( $id_base ) { |
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| 677 | |||
| 678 | /** |
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| 679 | * Method used to sort widgets |
||
| 680 | * |
||
| 681 | * @since 5.4 |
||
| 682 | * |
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| 683 | * @param array $a |
||
| 684 | * @param array $b |
||
| 685 | * |
||
| 686 | * @return int |
||
| 687 | */ |
||
| 688 | public static function sort_widgets( $a, $b ) { |
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| 699 | |||
| 700 | /** |
||
| 701 | * Retrieve a given widget object instance by ID base (eg. 'text' or 'archives'). |
||
| 702 | * |
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| 703 | * @param string $id_base The id_base of a type of widget. |
||
| 704 | * |
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| 705 | * @return WP_Widget|false The found widget object or false if the id_base was not found. |
||
| 706 | */ |
||
| 707 | public static function get_registered_widget_object( $id_base ) { |
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| 730 | |||
| 731 | /** |
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| 732 | * Validate a given widget ID base (eg. 'text' or 'archives'). |
||
| 733 | * |
||
| 734 | * @param string $id_base The id_base of a type of widget. |
||
| 735 | * |
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| 736 | * @return boolean True if the widget is of a known type. |
||
| 737 | */ |
||
| 738 | public static function validate_id_base( $id_base ) { |
||
| 741 | } |
||
| 742 |
Loading history...
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.