issue #268: added bootstrap 4 framework class

system/classes/bootstrap4.php

@@ -0,0 +1,36 @@
+<?php
+namespace YAWK\FRAMEWORK\BOOTSTRAP4 {
+    /**
+     * <b>Bootstrap 4 CSS methods </b>
+     * <p>Extends \YAWK\bootstrap - this class serves all bootstrap 4 component methods
+     * and set this->cssCode variable that will be used by \YAWK\bootstrap </p>
+     *
+     * @author     Daniel Retzl <[email protected]>
+     * @copyright  2009-2015 Daniel Retzl yawk.io
+     * @license    https://opensource.org/licenses/MIT
+     * @version    1.0.0
+     * @link       http://yawk.io
+     * @annotation Helper function to output custom (overriden) bootstrap 4 css (settings.css)
+     */
+    class bootstrap4 extends \YAWK\FRAMEWORK\cssFramework
+    {
+        /** @var string all the css as string */
+        public $cssCode = '';
+
+        /**
+         * Bootstrap 4: CARDS Component CSS Code
+         * @author Daniel Retzl <[email protected]>
+         * @version 1.0.0
+         * @link http://yawk.io
+         * @annotation add bootstrap 4 cards component to this css code string
+         */
+        public function bs4_Cards()
+        {
+            // cards css code
+            $this->cssCode = "    
+            /* CARDS */
+            /* .... */
+            ";
+        }
+    }
+}