setConfig( array( 'id' => isset( $options['id'] ) ? sanitize_title_with_dashes( $options['id'] ) : 'shapla_meta_box_options', 'title' => isset( $options['title'] ) ? esc_attr( $options['title'] ) : __( 'Page Options', 'shapla' ), 'screen' => isset( $options['screen'] ) ? $options['screen'] : 'page', 'context' => isset( $options['context'] ) ? esc_attr( $options['context'] ) : 'advanced', 'priority' => isset( $options['priority'] ) ? esc_attr( $options['priority'] ) : 'low', ) ); $this->fields = $options['fields']; $config = $this->getConfig(); add_meta_box( $config['id'], $config['title'], array( $this, 'meta_box_callback' ), $config['screen'], $config['context'], $config['priority'], $this->fields ); return true; } /** * @param WP_Post $post * @param array $fields */ public function meta_box_callback( $post, $fields ) { if ( ! is_array( $fields ) ) { return; } wp_nonce_field( basename( __FILE__ ), '_shapla_nonce' ); $values = (array) get_post_meta( $post->ID, $this->option_name, true ); echo ''; foreach ( $this->getFields() as $_field ) { $field = self::sanitizeField( $_field ); $name = $this->option_name . '[' . $field['id'] . ']'; $value = empty( $values[ $field['id'] ] ) ? $field['default'] : $values[ $field['id'] ]; if ( ! isset( $values[ $field['id'] ] ) ) { $meta = get_post_meta( $post->ID, $field['id'], true ); $value = empty( $meta ) ? $field['default'] : $meta; } echo ''; echo ''; echo ''; echo ''; } echo '

'; echo ''; echo '' . $field['label'] . ''; if ( ! empty( $field['description'] ) ) { echo '' . $field['description'] . ''; } echo ''; echo '	'; switch ( $field['type'] ) { case 'checkbox': $this->checkbox( $field, $name, $value ); break; case 'text': case 'email': case 'number': case 'url': $this->text( $field, $name, $value ); break; } echo '

'; } /** * Save the meta when the post is saved. * * @param int $post_id Post ID. * @param WP_Post $post Post object. * @param bool $update Whether this is an existing post being updated or not. * * @return void */ public function save_meta_box( $post_id, $post, $update ) { // Check if not an autosave. if ( wp_is_post_autosave( $post_id ) ) { return; } // Check if not a revision. if ( wp_is_post_revision( $post_id ) ) { return; } // Verify that the nonce is valid. $nonce = isset( $_POST['_shapla_nonce'] ) && wp_verify_nonce( $_POST['_shapla_nonce'], basename( __FILE__ ) ); if ( ! $nonce ) { return; } // Check if user has permissions to save data. $capability = ( isset( $_POST['post_type'] ) && 'page' == $_POST['post_type'] ) ? 'edit_page' : 'edit_post'; if ( ! current_user_can( $capability, $post_id ) ) { return; } do_action( 'shapla_before_save_post_meta', $post_id, $post, $update ); if ( isset( $_POST[ $this->option_name ] ) ) { update_post_meta( $post_id, $this->option_name, $this->sanitize_value( $_POST[ $this->option_name ] ) ); } do_action( 'shapla_after_save_post_meta', $post_id, $post, $update ); } /** * @return array */ public function getPanels() { return $this->panels; } /** * @param array $panels * * @return Shapla_Metabox */ public function setPanels( $panels ) { $this->panels[] = $panels; return $this; } /** * @return array */ public function getSections() { return $this->sections; } /** * @param array $sections * * @return Shapla_Metabox */ public function setSections( $sections ) { $this->sections[] = $sections; return $this; } /** * @return array */ public function getFields() { return $this->fields; } /** * @param array $fields * * @return Shapla_Metabox */ public function setFields( $fields ) { $this->fields[] = $fields; return $this; } /** * @return array */ public function getConfig() { return $this->config; } /** * @param array $config */ public function setConfig( $config ) { $this->config = $config; } /** * Sanitize Field with field default * * @param $field * * @return array */ private static function sanitizeField( $field ) { $is_valid_type = isset( $field['type'] ) && in_array( $field['type'], self::validFieldType() ); $field_type = $is_valid_type ? esc_attr( $field['type'] ) : 'text'; $label_class = isset( $field['label_class'] ) ? $field['label_class'] : ''; $field_class = isset( $field['field_class'] ) ? $field['field_class'] : 'regular-text'; return array( 'type' => $field_type, 'id' => isset( $field['id'] ) ? esc_attr( $field['id'] ) : '', 'section' => isset( $field['section'] ) ? esc_attr( $field['section'] ) : 'default', 'label' => isset( $field['label'] ) ? esc_html( $field['label'] ) : '', 'description' => isset( $field['description'] ) ? esc_html( $field['description'] ) : '', 'priority' => isset( $field['priority'] ) ? intval( $field['priority'] ) : 10, 'default' => isset( $field['default'] ) ? $field['default'] : '', 'choices' => isset( $field['choices'] ) ? $field['choices'] : array(), 'field_class' => $field_class, 'label_class' => $label_class, ); } /** * Valid input field type for metabox * * @return array */ private static function validFieldType() { return array( 'text', 'number', 'checkbox', ); } /** * Sanitize meta value * * @param $input * * @return array|string */ private function sanitize_value( $input ) { // Initialize the new array that will hold the sanitize values $new_input = array(); if ( is_array( $input ) ) { // Loop through the input and sanitize each of the values foreach ( $input as $key => $value ) { if ( is_array( $value ) ) { $new_input[ $key ] = $this->sanitize_value( $value ); } else { $new_input[ $key ] = sanitize_text_field( $value ); } } } else { return sanitize_text_field( $input ); } return $new_input; } /** * @param $field * @param $name * @param $value */ private function text( $field, $name, $value ) { $valid_type = array( 'text', 'email', 'number', 'url', 'search', 'time' ); $type = in_array( $value['type'], $valid_type ) ? esc_attr( $value['type'] ) : 'text'; echo ''; } /** * @param $field * @param $name * @param $value */ private function checkbox( $field, $name, $value ) { $checked = Shapla_Sanitize::checked( $value ) ? 'checked' : ''; echo ''; echo ''; echo '' . $field['label'] . ''; } } } Shapla_Metabox::instance(); /* * Example Usages * add_action( 'add_meta_boxes', function () { $options = array( 'id' => 'shapla-page-options', 'title' => __( 'Page Options', 'shapla' ), 'screen' => 'page', 'context' => 'normal', 'priority' => 'high', 'fields' => array( array( 'type' => 'checkbox', 'id' => 'hide_page_title', 'label' => __( 'Hide Page Title', 'shapla' ), 'description' => __( 'Check to hide title for current page.', 'shapla' ), 'default' => 'off', 'priority' => 10, 'section' => 'page_title_bar', ), ) ); Shapla_Metabox::instance()->add( $options ); } ); */