class.redux-plugin.php

<?php

    /**
     * ReduxFrameworkPlugin main class
     *
     * @package     ReduxFramework\ReduxFrameworkPlugin
     * @since       3.0.0
     */

    // Exit if accessed directly
    if ( ! defined( 'ABSPATH' ) ) {
        exit;
    }

    if ( ! class_exists( 'ReduxFrameworkPlugin' ) ) {

        /**
         * Main ReduxFrameworkPlugin class
         *
         * @since       3.0.0
         */
        class ReduxFrameworkPlugin {

            /**
             * @const       string VERSION The plugin version, used for cache-busting and script file references
             * @since       3.0.0
             */

            const VERSION = '3.5.4.1';

            /**
             * @access      protected
             * @var         array $options Array of config options, used to check for demo mode
             * @since       3.0.0
             */
            protected $options = array();

            /**
             * Use this value as the text domain when translating strings from this plugin. It should match
             * the Text Domain field set in the plugin header, as well as the directory name of the plugin.
             * Additionally, text domains should only contain letters, number and hypens, not underscores
             * or spaces.
             *
             * @access      protected
             * @var         string $plugin_slug The unique ID (slug) of this plugin
             * @since       3.0.0
             */
            protected $plugin_slug = 'redux-framework';

            /**
             * @access      protected
             * @var         string $plugin_screen_hook_suffix The slug of the plugin screen
             * @since       3.0.0
             */
            protected $plugin_screen_hook_suffix = null;

            /**
             * @access      protected
             * @var         string $plugin_network_activated Check for plugin network activation
             * @since       3.0.0
             */
            protected $plugin_network_activated = null;

            /**
             * @access      private
             * @var         \ReduxFrameworkPlugin $instance The one true ReduxFrameworkPlugin
             * @since       3.0.0
             */
            private static $instance;

            /**
             * Get active instance
             *
             * @access      public
             * @since       3.1.3
             * @return      self::$instance The one true ReduxFrameworkPlugin
             */
            public static function instance() {
                if ( ! self::$instance ) {
                    self::$instance = new self;
                    self::$instance->get_redux_options();
                    self::$instance->includes();
                    self::$instance->hooks();
                }

                return self::$instance;
            }

            // Shim since we changed the function name. Deprecated.
            public static function get_instance() {
                if ( ! self::$instance ) {
                    self::$instance = new self;
                    self::$instance->get_redux_options();
                    self::$instance->includes();
                    self::$instance->hooks();
                }

                return self::$instance;
            }

            /**
             * Get Redux options
             *
             * @access      public
             * @since       3.1.3
             * @return      void
             */
            public function get_redux_options() {

                // Setup defaults
                $defaults = array(
                    'demo' => false,
                );

                // If multisite is enabled
                if ( is_multisite() ) {

                    // Get network activated plugins
                    $plugins = get_site_option( 'active_sitewide_plugins' );

                    foreach ( $plugins as $file => $plugin ) {
                        if ( strpos( $file, 'redux-framework.php' ) !== false ) {
                            $this->plugin_network_activated = true;
                            $this->options                  = get_site_option( 'ReduxFrameworkPlugin', $defaults );
                        }
                    }
                }

                // If options aren't set, grab them now!
                if ( empty( $this->options ) ) {
                    $this->options = get_option( 'ReduxFrameworkPlugin', $defaults );
                }
            }

            /**
             * Include necessary files
             *
             * @access      public
             * @since       3.1.3
             * @return      void
             */
            public function includes() {
                // Include ReduxCore
                if ( file_exists( dirname( __FILE__ ) . '/ReduxCore/framework.php' ) ) {
                    require_once( dirname( __FILE__ ) . '/ReduxCore/framework.php' );
                }

                if ( isset( ReduxFramework::$_as_plugin ) ) {
                    ReduxFramework::$_as_plugin = true;
                }

                if ( file_exists( dirname( __FILE__ ) . '/ReduxCore/redux-extensions/config.php' ) ) {
                    require_once( dirname( __FILE__ ) . '/ReduxCore/redux-extensions/config.php' );
                }

                // Include demo config, if demo mode is active
                if ( $this->options['demo'] && file_exists( dirname( __FILE__ ) . '/sample/sample-config.php' ) ) {
                    require_once( dirname( __FILE__ ) . '/sample/sample-config.php' );
                }
            }

            /**
             * Run action and filter hooks
             *
             * @access      private
             * @since       3.1.3
             * @return      void
             */
            private function hooks() {
                add_action( 'wp_loaded', array( $this, 'options_toggle_check' ) );

                // Activate plugin when new blog is added
                add_action( 'wpmu_new_blog', array( $this, 'activate_new_site' ) );

                // Display admin notices
                add_action( 'admin_notices', array( $this, 'admin_notices' ) );

                // Edit plugin metalinks
                add_filter( 'plugin_row_meta', array( $this, 'plugin_metalinks' ), null, 2 );

                add_action( 'activated_plugin', array( $this, 'load_first' ) );

                do_action( 'redux/plugin/hooks', $this );
            }

            public function load_first() {
                $path = str_replace( WP_PLUGIN_DIR . '/', '', __FILE__ );
                if ( $plugins = get_option( 'active_plugins' ) ) {
                    if ( $key = array_search( $path, $plugins ) ) {
                        array_splice( $plugins, $key, 1 );
                        array_unshift( $plugins, $path );
                        update_option( 'active_plugins', $plugins );
                    }
                }
            }

            /**
             * Fired on plugin activation
             *
             * @access      public
             * @since       3.0.0
             *
             * @param       boolean $network_wide True if plugin is network activated, false otherwise
             *
             * @return      void
             */
            public static function activate( $network_wide ) {
                if ( function_exists( 'is_multisite' ) && is_multisite() ) {
                    if ( $network_wide ) {
                        // Get all blog IDs
                        $blog_ids = self::get_blog_ids();

                        foreach ( $blog_ids as $blog_id ) {
                            switch_to_blog( $blog_id );
                            self::single_activate();
                        }
                        restore_current_blog();
                    } else {
                        self::single_activate();
                    }
                } else {
                    self::single_activate();
                }

                delete_site_transient( 'update_plugins' );
            }

            /**
             * Fired when plugin is deactivated
             *
             * @access      public
             * @since       3.0.0
             *
             * @param       boolean $network_wide True if plugin is network activated, false otherwise
             *
             * @return      void
             */
            public static function deactivate( $network_wide ) {
                if ( function_exists( 'is_multisite' ) && is_multisite() ) {
                    if ( $network_wide ) {
                        // Get all blog IDs
                        $blog_ids = self::get_blog_ids();

                        foreach ( $blog_ids as $blog_id ) {
                            switch_to_blog( $blog_id );
                            self::single_deactivate();
                        }
                        restore_current_blog();
                    } else {
                        self::single_deactivate();
                    }
                } else {
                    self::single_deactivate();
                }

                delete_option( 'ReduxFrameworkPlugin' );
            }

            /**
             * Fired when a new WPMU site is activated
             *
             * @access      public
             * @since       3.0.0
             *
             * @param       int $blog_id The ID of the new blog
             *
             * @return      void
             */
            public function activate_new_site( $blog_id ) {
                if ( 1 !== did_action( 'wpmu_new_blog' ) ) {
                    return;
                }

                switch_to_blog( $blog_id );
                self::single_activate();
                restore_current_blog();
            }

            /**
             * Get all IDs of blogs that are not activated, not spam, and not deleted
             *
             * @access      private
             * @since       3.0.0
             * @global      object $wpdb
             * @return      array|false Array of IDs or false if none are found
             */
            private static function get_blog_ids() {
                global $wpdb;

                // Get an array of IDs
                $sql = "SELECT blog_id FROM $wpdb->blogs
                    WHERE archived = '0' AND spam = '0'
                    AND deleted = '0'";

                return $wpdb->get_col( $sql );
            }

            /**
             * Fired for each WPMS blog on plugin activation
             *
             * @access      private
             * @since       3.0.0
             * @return      void
             */
            private static function single_activate() {
                $notices   = get_option( 'ReduxFrameworkPlugin_ACTIVATED_NOTICES', array() );
                $notices[] = __( 'Redux Framework has an embedded demo.', 'redux-framework' ) . ' <a href="./plugins.php?ReduxFrameworkPlugin=demo">' . __( 'Click here to activate the sample config file.', 'redux-framework' ) . '</a>';

                update_option( 'ReduxFrameworkPlugin_ACTIVATED_NOTICES', $notices );
            }

            /**
             * Display admin notices
             *
             * @access      public
             * @since       3.0.0
             * @return      void
             */
            public function admin_notices() {
                do_action( 'ReduxFrameworkPlugin_admin_notice' );

                if ( $notices = get_option( 'ReduxFrameworkPlugin_ACTIVATED_NOTICES' ) ) {
                    foreach ( $notices as $notice ) {
                        echo '<div class="updated"><p>' . $notice . '</p></div>';
                    }

                    delete_option( 'ReduxFrameworkPlugin_ACTIVATED_NOTICES' );
                }
            }

            /**
             * Fired for each blog when the plugin is deactivated
             *
             * @access      private
             * @since       3.0.0
             * @return      void
             */
            private static function single_deactivate() {
                delete_option( 'ReduxFrameworkPlugin_ACTIVATED_NOTICES' );
            }

            /**
             * Turn on or off
             *
             * @access      public
             * @since       3.0.0
             * @global      string $pagenow The current page being displayed
             * @return      void
             */
            public function options_toggle_check() {
                global $pagenow;

                if ( $pagenow == 'plugins.php' && is_admin() && ! empty( $_GET['ReduxFrameworkPlugin'] ) ) {
                    $url = './plugins.php';

                    if ( $_GET['ReduxFrameworkPlugin'] == 'demo' ) {
                        if ( $this->options['demo'] == false ) {
                            $this->options['demo'] = true;
                        } else {
                            $this->options['demo'] = false;
                        }
                    }

                    if ( is_multisite() && is_network_admin() && $this->plugin_network_activated ) {
                        update_site_option( 'ReduxFrameworkPlugin', $this->options );
                    } else {
                        update_option( 'ReduxFrameworkPlugin', $this->options );
                    }

                    wp_redirect( $url );
                }
            }

            /**
             * Add settings action link to plugins page
             *
             * @access      public
             * @since       3.0.0
             * @return      void
             */
            public function add_action_links( $links ) {
                // In case we ever want to do this...
                return $links;

                /**
                 * return array_merge(
                 *      array( 'redux_plugin_settings' => '<a href="' . admin_url( 'plugins.php?page=' . 'redux_plugin_settings' ) . '">' . __( 'Settings', 'redux-framework' ) . '</a>' ),
                 *      $links
                 * );
                 */
            }

            /**
             * Edit plugin metalinks
             *
             * @access      public
             * @since       3.0.0
             *
             * @param       array  $links The current array of links
             * @param       string $file  A specific plugin row
             *
             * @return      array The modified array of links
             */
            public function plugin_metalinks( $links, $file ) {
                if ( strpos( $file, 'redux-framework.php' ) !== false && is_plugin_active( $file ) ) {

                    $new_links = array(
                        '<a href="http://docs.reduxframework.com/" target="_blank">' . __( 'Docs', 'redux-framework' ) . '</a>',
                        '<a href="https://github.com/ReduxFramework/redux-framework" target="_blank">' . __( 'Repo', 'redux-framework' ) . '</a>',
                        '<a href="http://build.reduxframework.com/" target="_blank">' . __( 'Builder', 'redux-framework' ) . '</a>',
                        '<a href="' . admin_url( 'tools.php?page=redux-support' ) . '">' . __( 'Get Support', 'redux-framework' ) . '</a>',
                    );

                    if ( ( is_multisite() && $this->plugin_network_activated ) || ! is_network_admin() || ! is_multisite() ) {
                        if ( $this->options['demo'] ) {
                            $new_links[3] .= '<br /><span style="display: block; padding-top: 6px;"><a href="./plugins.php?ReduxFrameworkPlugin=demo" style="color: #bc0b0b;">' . __( 'Deactivate Demo Mode', 'redux-framework' ) . '</a></span>';
                        } else {
                            $new_links[3] .= '<br /><span style="display: block; padding-top: 6px;"><a href="./plugins.php?ReduxFrameworkPlugin=demo" style="color: #bc0b0b;">' . __( 'Activate Demo Mode', 'redux-framework' ) . '</a></span>';
                        }
                    }

                    $links = array_merge( $links, $new_links );
                }

                return $links;
            }
        }
    }