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<?php |
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if ( ! defined( 'ABSPATH' ) ) exit; |
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/** |
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* Backend settings page class, can have settings fields or data table |
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* |
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* @author Nirjhar Lo |
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* @version 1.2.1 |
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* @package wp-plugin-framework |
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*/ |
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if ( ! class_exists( 'PLUGIN_SETTINGS' ) ) { |
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final class PLUGIN_SETTINGS { |
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/** |
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* @var String |
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*/ |
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public $capability; |
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/** |
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* @var Array |
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*/ |
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public $menu_page; |
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/** |
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* @var Array |
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*/ |
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public $sub_menu_page; |
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/** |
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* @var Array |
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*/ |
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public $help; |
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/** |
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* @var String |
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*/ |
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public $screen; |
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/** |
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* @var Object |
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*/ |
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public $table |
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/** |
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* Add basic actions for menu and settings |
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* |
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* @return Void |
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*/ |
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public function __construct() { |
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$this->capability = 'manage_options'; |
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$this->menu_page = array( 'name' => '', 'heading' => '', 'slug' => '' ); |
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$this->sub_menu_page = array( |
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'name' => '', |
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'heading' => '', |
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'slug' => '', |
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'parent_slug' => '', |
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'help' => '',//true/false, |
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'screen' => '',//true/false |
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); |
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$this->helpData = array( |
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array( |
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'slug' => '', |
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'help' => array( |
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'info' => array( |
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array( |
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'id' => 'helpId', |
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'title' => __( 'Title', 'textdomain' ), |
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'content' => __( 'Description', 'textdomain' ), |
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), |
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), |
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'link' => '<p><a href="#">' . __( 'helpLink', 'textdomain' ) . '</a></p>', |
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) |
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) |
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); |
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$this->screen = ''; // true/false |
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/** |
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* Add menues and hooks |
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* |
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add_action( 'admin_init', array( $this, 'add_settings' ) ); |
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add_action( 'admin_menu', array( $this, 'menu_page' ) ); |
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add_action( 'admin_menu', array( $this, 'sub_menu_page' ) ); |
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add_filter( 'set-screen-option', array( $this, 'set_screen' ), 10, 3 ); |
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* |
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*/ |
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} |
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/** |
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* Add a sample main menu page callback |
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* |
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* @return Void |
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*/ |
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public function menu_page() { |
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if ($this->menu_page) { |
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add_menu_page( |
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$this->menu_page['name'], |
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$this->menu_page['heading'], |
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$this->capability, |
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$this->menu_page['slug'], |
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array( $this, 'menu_page_callback' ) |
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); |
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} |
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} |
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/** |
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* Add a sample Submenu page callback |
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* |
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* @return Void |
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*/ |
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public function sub_menu_page() { |
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if ( $this->sub_menu_page ) { |
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foreach ( $this->sub_menu_page as $page ) { |
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$hook = add_submenu_page( |
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$page['parent_slug'], |
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$page['name'], |
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$page['heading'], |
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$this->capability, |
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// For the first submenu page, slug should be same as menupage. |
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$page['slug'], |
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// For the first submenu page, callback should be same as menupage. |
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array( $this, 'menu_page_callback' ) |
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); |
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if ( $page['help'] ) { |
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add_action( 'load-' . $hook, array( $this, 'help_tabs' ) ); |
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} |
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if ( $page['screen'] ) { |
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add_action( 'load-' . $hook, array( $this, 'screen_option' ) ); |
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} |
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} |
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} |
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} |
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/** |
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* Set screen |
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* |
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* @param String $status |
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* @param String $option |
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* @param String $value |
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* |
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* @return String |
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*/ |
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public function set_screen($status, $option, $value) { |
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$user = get_current_user_id(); |
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switch ($option) { |
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case 'option_name_per_page': |
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update_user_meta($user, 'option_name_per_page', $value); |
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$output = $value; |
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break; |
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} |
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if ( $output ) return $output; // Related to PLUGIN_TABLE() |
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} |
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/** |
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* Set screen option for Items table |
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* |
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* @return Void |
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*/ |
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public function screen_option() { |
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$option = 'per_page'; |
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$args = array( |
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'label' => __( 'Show per page', 'textdomain' ), |
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'default' => 10, |
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'option' => 'option_name_per_page' // Related to PLUGIN_TABLE() |
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); |
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add_screen_option( $option, $args ); |
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$this->table = new PLUGIN_TABLE(); // Source /lib/table.php |
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} |
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/** |
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* Menu page callback |
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* |
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* @return Html |
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*/ |
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public function menu_page_callback() { ?> |
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<div class="wrap"> |
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<h1><?php echo get_admin_page_title(); ?></h1> |
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<br class="clear"> |
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<?php settings_errors(); |
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/** |
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* Following is the settings form |
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*/ ?> |
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<form method="post" action=""> |
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<?php settings_fields("settings_id"); |
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do_settings_sections("settings_name"); |
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submit_button( __( 'Save', 'textdomain' ), 'primary', 'id' ); ?> |
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</form> |
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<?php |
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/** |
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* Following is the data table class |
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*/ ?> |
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<form method="post" action=""> |
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<?php |
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$this->table->prepare_items(); |
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$this->table->display(); ?> |
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</form> |
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<br class="clear"> |
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</div> |
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<?php |
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} |
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/** |
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* Add help tabs using help data |
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* |
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* @return Void |
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*/ |
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public function help_tabs() { |
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foreach ($this->helpData as $value) { |
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if ($_GET['page'] == $value['slug']) { |
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$this->screen = get_current_screen(); |
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foreach( $value['info'] as $key ) { |
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$this->screen->add_help_tab( $key ); |
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} |
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$this->screen->set_help_sidebar( $value['link'] ); |
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} |
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} |
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} |
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/** |
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* Add different types of settings and corrosponding sections |
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* |
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* @return Void |
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*/ |
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public function add_settings() { |
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add_settings_section( 'settings_id', __( 'Section Name', 'textdomain' ), array( $this,'section_cb' ), 'settings_name' ); |
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register_setting( 'settings_id', 'settings_field_name' ); |
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add_settings_field( 'settings_field_name', __( 'Field Name', 'textdomain' ), array( $this, 'settings_field_cb' ), 'settings_name', 'settings_id' ); |
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} |
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/** |
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* Section description |
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* |
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* @return Html |
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*/ |
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public function section_cb() { |
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echo '<p class="description">' . __( 'Set up settings', 'textdomain' ) . '</p>'; |
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} |
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/** |
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* Field explanation |
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* |
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* @return Html |
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*/ |
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public function settings_field_cb() { |
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//Choose any one from input, textarea, select or checkbox |
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/** |
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echo '<input type="text" class="medium-text" name="settings_field_name" id="settings_field_name" value="' . get_option('settings_field_name') . '" placeholder="' . __( 'Enter Value', 'textdomain' ) . '" required />'; |
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echo '<textarea name="settings_field_name" id="settings_field_name" value="' . get_option('settings_field_name') . '>'. __( 'Enter Value', 'textdomain' ) . '</textarea>'; |
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echo '<select name="settings_field_name" id="settings_field_name"><option value="value" ' . selected( 'value', get_option('settings_field_name'), false) . '>Value</option></select>'; |
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echo '<input type="checkbox" id="settings_field_name" name="settings_field_name" value="1"' . checked( 1, get_option('settings_field_name'), false ) . '/>'; |
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*/ |
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} |
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} |
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} ?> |
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