Scaffolding to intercept bulk-edit request

bulk-edit-cron-offload.php

@@ -10,4 +10,8 @@
 
 namespace Automattic\WP\Bulk_Edit_Cron_Offload;
 
+// Plugin dependencies
+require __DIR__ . '/includes/abstract-class-singleton.php';
+
+// Plugin functionality
 require __DIR__ . '/includes/class-main.php';

includes/abstract-class-singleton.php

+<?php
+
+namespace Automattic\WP\Bulk_Edit_Cron_Offload;
+
+abstract class Singleton {
+	/**
+	 * Class instance
+	 */
+	private static $__instances = array();
+
+	public static function instance() {
+		$caller = get_called_class();
+
+		if ( ! isset( self::$__instances[ $caller ] ) ) {
+			self::$__instances[ $caller ] = new $caller();
+
+			self::$__instances[ $caller ]->class_init();
+		}
+
+		return self::$__instances[ $caller ];
+	}
+
+	protected function __construct() {}
+
+	/**
+	 * PLUGIN SETUP
+	 */
+
+	/**
+	 * Register hooks
+	 */
+	protected function class_init() {}
+}

includes/class-main.php

@@ -2,13 +2,137 @@
 
 namespace Automattic\WP\Bulk_Edit_Cron_Offload;
 
-class Main {
+class Main extends Singleton {
 	/**
-	 *
+	 * Requested action
 	 */
-	static function load() {
-		// filters!
+	private $action = null;
+
+	/**
+	 * Posts to process
+	 */
+	private $posts = null;
+
+	/**
+	 * Taxonomy terms to add
+	 */
+	private $tax_input = null;
+
+	/**
+	 * Post author to set
+	 */
+	private $post_author = null;
+
+	/**
+	 * Comment status to set
+	 */
+	private $comment_status = null;
+
+	/**
+	 * Ping status to set
+	 */
+	private $ping_status = null;
+
+	/**
+	 * New post status
+	 */
+	private $post_status = null;
+
+	/**
+	 * Posts' stick status
+	 */
+	private $post_sticky = null;
+
+	/**
+	 * Posts' format
+	 */
+	private $post_format = null;
+
+	/**
+	 * Register action
+	 */
+	public function class_init() {
+		add_action( 'load-edit.php', array( $this, 'intercept' ) );
+	}
+
+	/**
+	 * Call appropriate handler
+	 */
+	public function intercept() {
+		// Nothing to do
+		if ( ! isset( $_REQUEST['action'] ) ) {
+			return;
+		}
+
+		// Parse request to determine what to do
+		$this->populate_vars();
+
+		// Now what?
+		switch ( $this->action ) {
+			case 'delete_all' :
+				break;
+
+			case 'trash' :
+				break;
+
+			case 'untrash' :
+				break;
+
+			case 'delete' :
+				break;
+
+			case 'edit' :
+				break;
+
+			// How did you get here?
+			default :
+				return;
+				break;
+		}
+	}
+
+	/**
+	 * Capture relevant variables to be stored in cron events
+	 */
+	private function populate_vars() {
+		$this->action = $_REQUEST['action'];
+
+		if ( isset( $_REQUEST['post'] ) && is_array( $_REQUEST['post'] ) ) {
+			$this->posts = array_map( 'absint', $_REQUEST['post'] );
+		}
+
+		if ( isset( $_REQUEST['tax_input'] ) && is_array( $_REQUEST['tax_input'] ) ) {
+			$this->tax_input = $_REQUEST['tax_input'];
+		}
+
+		if ( isset( $_REQUEST['post_author'] ) && -1 === (int) $_REQUEST['post_author'] ) {
+			$this->post_author = $_REQUEST['post_author'];
+		}
+
+		if ( isset( $_REQUEST['comment_status'] ) && ! empty( $_REQUEST['comment_status'] ) ) {
+			$this->comment_status = $_REQUEST['comment_status'];
+		}
+
+		if ( isset( $_REQUEST['ping_status'] ) && ! empty( $_REQUEST['ping_status'] ) ) {
+			$this->ping_status = $_REQUEST['ping_status'];
+		}
+
+		if ( isset( $_REQUEST['_status'] ) && -1 !== (int) $_REQUEST['_status'] ) {
+			$this->post_status = $_REQUEST['_status'];
+		}
+
+		if ( isset( $_REQUEST['sticky'] ) && -1 !== (int) $_REQUEST['sticky'] ) {
+			$this->post_sticky = $_REQUEST['sticky'];
+		}
+
+		if ( isset( $_REQUEST['post_format'] ) && -1 !== (int) $_REQUEST['post_format'] ) {
+			$this->post_format = $_REQUEST['post_format'];
+		}
+
+		// Stop Core from processing bulk request
+		unset( $_REQUEST['action'] );
+		unset( $_REQUEST['action2'] );
 	}
 }
 
-Main::load();
+Main::instance();