related-posts.php
| 1 | <?php |
| 2 | /** |
| 3 | * Module Name: Related posts |
| 4 | * Module Description: Increase page views by showing related content to your visitors. |
| 5 | * Jumpstart Description: Keep visitors engaged on your blog by highlighting relevant and new content at the bottom of each published post. |
| 6 | * First Introduced: 2.9 |
| 7 | * Sort Order: 29 |
| 8 | * Recommendation Order: 9 |
| 9 | * Requires Connection: Yes |
| 10 | * Auto Activate: No |
| 11 | * Module Tags: Recommended |
| 12 | * Feature: Engagement, Jumpstart |
| 13 | * Additional Search Queries: related, related posts |
| 14 | */ |
| 15 | class Jetpack_RelatedPosts_Module { |
| 16 | /** |
| 17 | * Class variables |
| 18 | */ |
| 19 | private static $__instance = null; |
| 20 | |
| 21 | /** |
| 22 | * Singleton implementation |
| 23 | * |
| 24 | * @return object |
| 25 | */ |
| 26 | public static function instance() { |
| 27 | if ( ! is_a( self::$__instance, 'Jetpack_RelatedPosts_Module' ) ) |
| 28 | self::$__instance = new Jetpack_RelatedPosts_Module(); |
| 29 | |
| 30 | return self::$__instance; |
| 31 | } |
| 32 | |
| 33 | /** |
| 34 | * Register actions and filters |
| 35 | * |
| 36 | * @uses add_action, add_filter |
| 37 | */ |
| 38 | private function __construct() { |
| 39 | add_action( 'jetpack_module_loaded_related-posts', array( $this, 'action_on_load' ) ); |
| 40 | } |
| 41 | |
| 42 | /** |
| 43 | * This action triggers if the module is in an active state, load related posts and options. |
| 44 | * |
| 45 | * @uses Jetpack_RelatedPosts::init, is_admin, Jetpack::enable_module_configurable, Jetpack::module_configuration_load, Jetpack_Sync::sync_posts |
| 46 | * @return null |
| 47 | */ |
| 48 | public function action_on_load() { |
| 49 | require_once 'related-posts/jetpack-related-posts.php'; |
| 50 | Jetpack_RelatedPosts::init(); |
| 51 | |
| 52 | if ( is_admin() ) { |
| 53 | // Enable "Configure" button on module card |
| 54 | Jetpack::enable_module_configurable( __FILE__ ); |
| 55 | Jetpack::module_configuration_load( __FILE__, array( $this, 'module_configuration_load' ) ); |
| 56 | } |
| 57 | |
| 58 | // Load Customizer controls. |
| 59 | if ( class_exists( 'WP_Customize_Manager' ) ) { |
| 60 | require_once 'related-posts/class.related-posts-customize.php'; |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | /** |
| 65 | * Redirect configure button to Settings > Reading |
| 66 | * |
| 67 | * @uses wp_safe_redirect, admin_url |
| 68 | * @return null |
| 69 | */ |
| 70 | public function module_configuration_load() { |
| 71 | wp_safe_redirect( admin_url( 'options-reading.php#jetpack_relatedposts' ) ); |
| 72 | exit; |
| 73 | } |
| 74 | |
| 75 | } |
| 76 | |
| 77 | // Do it. |
| 78 | Jetpack_RelatedPosts_Module::instance(); |
| 79 |