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<?php |
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namespace Carbon_Fields\Libraries\Sidebar_Manager; |
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/** |
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* This class is responsible for handling custom sidebars. |
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*/ |
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class Sidebar_Manager { |
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/** |
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* Singleton implementation. |
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* |
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* @return Sidebar_Manager |
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*/ |
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public static function instance() { |
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// Store the instance locally to avoid private static replication. |
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static $instance; |
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if ( ! is_a( $instance, 'Sidebar_Manager' ) ) { |
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$instance = new Sidebar_Manager; |
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$instance->setup(); |
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} |
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return $instance; |
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} |
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/** |
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* Register actions, filters, etc... |
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*/ |
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private function setup() { |
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// Register the custom sidebars |
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add_action( 'widgets_init', array( $this, 'register_sidebars' ), 100 ); |
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// Enqueue the UI scripts on the widgets page |
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add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_scripts' ) ); |
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// Set the default options |
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if ( function_exists( 'crb_get_default_sidebar_options' ) ) { |
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add_filter( 'carbon_custom_sidebar_default_options', 'crb_get_default_sidebar_options', -1 ); |
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} |
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// Ajax listeners |
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add_action( 'wp_ajax_carbon_add_sidebar', array( $this, 'action_handler' ) ); |
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add_action( 'wp_ajax_carbon_remove_sidebar', array( $this, 'action_handler' ) ); |
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} |
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/** |
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* Handle action requests. |
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* |
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* @return array|void Output JSON if DOING_AJAX, otherwise return an array |
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*/ |
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public function action_handler() { |
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$response = array( |
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'success' => false, |
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'error' => null, |
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); |
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if ( empty( $_POST['action'] ) || empty( $_POST['name'] ) ) { |
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return false; |
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} |
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$action = $_POST['action']; |
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$name = $_POST['name']; |
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$result = false; |
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switch ( $action ) { |
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case 'carbon_add_sidebar': |
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$result = $this->add_sidebar( $name ); |
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break; |
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case 'carbon_remove_sidebar': |
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$result = $this->remove_sidebar( $name ); |
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break; |
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} |
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if ( is_wp_error( $result ) ) { |
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$response['error'] = $result->get_error_message(); |
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} else { |
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$response['success'] = (bool) $result; |
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} |
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if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) { |
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wp_send_json( $response ); |
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} else { |
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return $response; |
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} |
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} |
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/** |
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* Add a new custom sidebar. |
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* |
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* @see Sidebar_Manager::register_sidebars() |
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* @param string $id Sidebar ID |
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* @param string $name Sidebar Name |
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* @return bool|WP_Error |
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*/ |
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public function add_sidebar( $name, $id = '' ) { |
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$registered_sidebars = $this->get_sidebars(); |
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$id = $id ? $id : $name; |
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// Sanitize the sidebar ID the same way as dynamic_sidebar() |
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$id = sanitize_title( $id ); |
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if ( isset( $registered_sidebars[ $id ] ) ) { |
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return new \WP_Error( 'sidebar-exists', __( 'Sidebar with the same ID is already registered.', 'carbon-fields' ) ); |
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} |
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$registered_sidebars[ $id ] = array( |
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'id' => $id, |
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'name' => $name, |
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); |
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return update_option( 'carbon_custom_sidebars', $registered_sidebars ); |
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} |
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/** |
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* Remove a custom sidebar by ID. |
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* |
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* @see Sidebar_Manager::register_sidebars() |
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* @param string $id Sidebar ID |
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* @return bool|WP_Error |
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*/ |
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public function remove_sidebar( $id ) { |
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$registered_sidebars = $this->get_sidebars(); |
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// Sanitize the sidebar ID the same way as dynamic_sidebar() |
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$id = sanitize_title( $id ); |
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if ( isset( $registered_sidebars[ $id ] ) ) { |
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unset( $registered_sidebars[ $id ] ); |
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} else { |
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return new \WP_Error( 'sidebar-not-found', __( 'Sidebar not found.', 'carbon-fields' ) ); |
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} |
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return update_option( 'carbon_custom_sidebars', $registered_sidebars ); |
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} |
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/** |
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* Get all the registered custom sidebars. |
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* |
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* @return array |
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*/ |
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public function get_sidebars() { |
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return apply_filters( 'carbon_custom_sidebars', get_option( 'carbon_custom_sidebars', array() ) ); |
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} |
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/** |
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* Register the custom sidebars. |
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*/ |
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public function register_sidebars() { |
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$registered_sidebars = $this->get_sidebars(); |
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$default_options = apply_filters( 'carbon_custom_sidebar_default_options', array() ); |
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foreach ( $registered_sidebars as $id => $options ) { |
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$options['class'] = 'carbon-sidebar'; |
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$options = wp_parse_args( $options, $default_options ); |
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$options = apply_filters( 'carbon_custom_sidebar_options', $options, $id ); |
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register_sidebar( $options ); |
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} |
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} |
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/** |
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* Enqueue the UI scripts. |
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*/ |
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public function enqueue_scripts() { |
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wp_enqueue_style( 'carbon-sidebar-manager', \Carbon_Fields\URL . '/core/Libraries/Sidebar_Manager/assets/css/app.css' ); |
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wp_enqueue_script( 'carbon-sidebar-manager', \Carbon_Fields\URL . '/core/Libraries/Sidebar_Manager/assets/js/app.js' ); |
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wp_localize_script( 'carbon-sidebar-manager', 'crbSidebarl10n', |
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array( |
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'add_sidebar' => __( 'Add Sidebar', 'carbon-fields' ), |
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'enter_name_of_new_sidebar' => __( 'Please enter the name of the new sidebar:', 'carbon-fields' ), |
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'remove_sidebar_confirmation' => __( 'Are you sure you wish to remove this sidebar?', 'carbon-fields' ), |
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) |
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); |
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} |
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} |
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htmlburger /
carbon-fields
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