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<?
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if(!class_exists('catchyTitle')) :
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    class catchyTitle
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    {
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        // Add meta box
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        public static function metaBox() 
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        {            
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            $screen = get_current_screen();  
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            if('post' != $screen->post_type)
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                return;
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            add_meta_box('catchy_title', 'Short Title', array('catchyTitle', 'metaBoxShow'), 'post', 'normal', 'high');
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        }        
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        // Show meta box
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        public static function metaBoxShow() 
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        {
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            global $post;
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            // Use nonce for verification
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            wp_nonce_field(plugin_basename( __FILE__ ), 'catchy_title_nonce');
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            // Get current value
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            $meta = get_post_meta($post->ID, 'catchy_title', true);
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            echo '
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            echo '            
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            <p>
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                <label for="catchy_title" class="">Enter shorter title here</label>
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                <input type="text" autocomplete="off" id="catchy_title" value="'.$meta.'" size="20" name="catchy_title">
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            </div>';
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            </div></p>';
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        // Save the meta data on form post
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        public static function saveMeta($postId) 
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        {
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            // Did the user intend to change this value
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            if(!isset($_POST['catchy_title_nonce']) || !wp_verify_nonce($_POST['catchy_title_nonce'], plugin_basename( __FILE__ )))
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                return;
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            // Check autosave
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            if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
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                return $postId;
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            }
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            // Check permissions
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            if(!current_user_can('edit_post', $postId))
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                return $postId;
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            $old = get_post_meta($postId, 'catchy_title', true);
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            $new = $_POST['catchy_title'];
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            if ($new && $new != $old) {
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                update_post_meta($postId, 'catchy_title', $new);
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            } elseif ('' == $new && $old) {
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                delete_post_meta($postId, 'catchy_title', $old);
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            }
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        }
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    }
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    if(is_admin())
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    {
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        add_action('admin_head',  array('catchyTitle', 'metaBox'));
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        add_action('save_post', array('catchyTitle', 'saveMeta'));
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    }
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endif;