File Content: mkdf-custom-sidebar.php <?php /** * Mikado Sidebar * Class for adding custom widget area and choose them on single pages/posts/portfolios */ if (!class_exists('CurlyMikadofSidebar')) { class CurlyMikadofSidebar { var $sidebars = array(); var $stored = ""; // load needed stuff on widget page function __construct() { $this->stored = 'mkdf_sidebars'; $this->title = esc_html__('Custom Widget Area', 'curly'); // Add custom sidebar form add_action( 'widgets_admin_page', array( $this, 'add_custom_sidebar_form' ) ); add_action('load-widgets.php', array(&$this, 'load_assets'), 5); add_action('widgets_init', array(&$this, 'register_custom_sidebars'), 1000); add_action('wp_ajax_mkdf_ajax_delete_custom_sidebar', array(&$this, 'delete_sidebar_area'), 1000); } function add_custom_sidebar_form() { ob_start(); $nonce = '<input type="hidden" name="edgtf-delete-sidebar" value="' . wp_create_nonce('edgtf-delete-sidebar') . '" />'; echo "\n<script type='text/html' id='edgtf-add-widget'>"; echo "\n <form class='edgtf-add-widget wp-block' method='POST' data-type='core/widget-area'>"; echo "\n <h3>" . esc_html($this->title) . "</h3>"; echo "\n <span class='input_wrap'><input type='text' value='' placeholder = '" . esc_attr__('Enter Name of the new Widget Area', 'curly') . "' name='edgtf-add-widget' /></span>"; echo "\n <input class='button' type='submit' value='" . esc_attr__('Add Widget Area', 'curly') . "' />"; echo "\n " . $nonce; echo "\n </form>"; echo "\n</script>\n"; echo ob_get_clean(); } //load css, js and add hooks to the widget page function load_assets() { add_action('load-widgets.php', array(&$this, 'add_sidebar_area'), 100); wp_enqueue_script('curly-mkdf-sidebar', MIKADO_ROOT . '/framework/admin/assets/js/mkdf-ui/mkdf-sidebar.js'); wp_enqueue_style('curly-mkdf-sidebar', MIKADO_ROOT . '/framework/admin/assets/css/mkdf-sidebar.css'); wp_localize_script( 'mkdf-admin-sidebar-script', 'mikado', array( 'customSidebars' => get_option( $this->stored ), ) ); } //widget form template function template_add_widget_field() { $nonce = '<input type="hidden" name="mkdf-delete-sidebar" value="' . wp_create_nonce('mkdf-delete-sidebar') . '" />'; echo "\n<script type='text/html' id='mkdf-add-widget'>"; echo "\n <form class='mkdf-add-widget wp-block' method='POST' data-type='core/widget-area'>"; echo "\n <h3>" . esc_html($this->title) . "</h3>"; echo "\n <span class='input_wrap'><input type='text' value='' placeholder = '" . esc_attr__('Enter Name of the new Widget Area', 'curly') . "' name='mkdf-add-widget' /></span>"; echo "\n <input class='button' type='submit' value='" . esc_attr__('Add Widget Area', 'curly') . "' />"; echo "\n " . $nonce; echo "\n </form>"; echo "\n</script>\n"; } //add sidebar area to the db function add_sidebar_area() { if (!empty($_POST['mkdf-add-widget'])) { $this->sidebars = get_option($this->stored); $name = $this->get_name( sanitize_text_field( $_POST['mkdf-add-widget'] ) ); if (empty($this->sidebars)) { $this->sidebars = array($name); } else { $this->sidebars = array_merge($this->sidebars, array($name)); } update_option($this->stored, $this->sidebars); wp_redirect(admin_url('widgets.php')); die(); } } //delete sidebar area from the db function delete_sidebar_area() { check_ajax_referer('mkdf-delete-sidebar'); if (!empty($_POST['name'])) { $name = stripslashes( sanitize_text_field( $_POST['name'] ) ); $this->sidebars = get_option($this->stored); if (($key = array_search($name, $this->sidebars)) !== false) { unset($this->sidebars[$key]); update_option($this->stored, $this->sidebars); echo "sidebar-deleted"; } } die(); } //checks the user submitted name and makes sure that there are no colitions function get_name($name) { if (empty($GLOBALS['wp_registered_sidebars'])) { return $name; } $taken = array(); foreach ($GLOBALS['wp_registered_sidebars'] as $sidebar) { $taken[] = $sidebar['name']; } if (empty($this->sidebars)) { $this->sidebars = array(); } $taken = array_merge($taken, $this->sidebars); if (in_array($name, $taken)) { $counter = substr($name, -1); $new_name = !is_numeric($counter) ? $name . " 1" : substr($name, 0, -1) . ((int)$counter + 1); $name = $this->get_name($new_name); } return $name; } //register custom sidebar areas function register_custom_sidebars() { if (empty($this->sidebars)) { $this->sidebars = get_option($this->stored); } $args = array( 'before_widget' => '<div class="widget %2$s">', 'after_widget' => '</div>', 'before_title' => '<div class="mkdf-widget-title-holder"><h4 class="mkdf-widget-title">', 'after_title' => '</h4></div>' ); $args = apply_filters('curly_mkdf_custom_widget_args', $args); if (is_array($this->sidebars)) { foreach ($this->sidebars as $sidebar) { $args['name'] = $sidebar; $args['id'] = sanitize_title($sidebar); $args['class'] = 'mkdf-custom'; register_sidebar($args); } } } } } Submit