Add plugin support as a feature due to issues with smart detection. See

#42

features/plugin-support/plugin-support.php

@@ -0,0 +1,80 @@
+<?php
+
+class Tabify_Edit_Screen_Feature_Plugin_Support {
+
+	public function __construct() {
+		$screen = get_current_screen();
+
+		if ( 'settings_page_tabify-edit-screen' != $screen->base ) {
+			return;
+		}
+
+		add_action( 'tabify_add_meta_boxes', array( $this, 'types' ) );
+		add_action( 'tabify_add_meta_boxes', array( $this, 'members' ) );
+		add_action( 'tabify_add_meta_boxes', array( $this, 'wpml' ) );
+
+		add_filter( 'wpseo_always_register_metaboxes_on_admin', '__return_true' );
+		add_action( 'tabify_add_meta_boxes', array( $this, 'wpseo' ) ); // The old way, will be removed in 1.0
+	}
+
+	/**
+	 * Load widgets created by Types
+	 *
+	 * @param string $posttype The posttype the metaboxes should be loaded from
+	 * 
+	 * @since 0.4.0
+	 */
+	public function types( $posttype ) {
+		if ( function_exists( 'wpcf_admin_post_page_load_hook' ) ) {
+			$_GET['post_type'] = $posttype;
+			wpcf_admin_post_page_load_hook();
+			unset( $_GET['post_type'] );
+		}
+	}
+
+	/**
+	 * Load widgets created by WordPress SEO
+	 *
+	 * @param string $posttype The posttype the metaboxes should be loaded from
+	 * 
+	 * @since 0.4.0
+	 */
+	public function wpseo( $posttype ) {
+		if ( defined( 'WPSEO_PATH' ) && is_file( WPSEO_PATH . 'admin/class-metabox.php' ) ) {
+			include_once WPSEO_PATH . 'admin/class-metabox.php';
+		}
+	}
+
+
+	/**
+	 * Load widgets created by Members
+	 *
+	 * @param string $posttype The posttype the metaboxes should be loaded from
+	 * 
+	 * @since 0.4.0
+	 */
+	public function members( $posttype ) {
+		if ( function_exists( 'members_admin_setup' ) && ! did_action( 'load-post.php' ) ) {
+			do_action( 'load-post.php' );
+		}
+	}
+
+	/**
+	 * Load widgets created by Members
+	 *
+	 * @param string $posttype The posttype the metaboxes should be loaded from
+	 * 
+	 * @since 0.7.0
+	 */
+	public function wpml( $posttype ) {
+		global $sitepress, $post;
+
+		if ( defined('ICL_SITEPRESS_VERSION') && $sitepress && ! $post ) {
+			$post = (object) array( 'post_type' => $posttype );
+			$sitepress->post_edit_language_options();
+
+			$post = null;
+		}
+	}
+
+}

tabify-edit-screen.php

@@ -72,8 +72,12 @@ public function load_features( $screen ) {
 			'permissions'
 		);
 
+		if ( apply_filters( 'tabify_plugin_support', true ) ) {
+			$features[] = 'plugin-support';
+		}
+
 		foreach ( $features as $feature ) {
-			$class_name = 'Tabify_Edit_Screen_Feature_' . $feature;
+			$class_name = 'Tabify_Edit_Screen_Feature_' . str_replace( '-', '_', $feature );
 
 			include 'features/' . $feature . '/' . $feature . '.php';
 			new $class_name;