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<?php
/**
* Abstract admin page controller.
*
* All page controllers must inherit from this one.
*
* @since 2.0
*/
abstract class Types_Page_Abstract {
/** @var bool Whether to disable heartbeat. Default is true (disable). */
protected $disable_heartbeat = true;
/**
* Prepare the page controller for displaying a page.
*
* This should be the first time where any kind of preparation happens (it shouldn't happen during
* instantiating the class).
*
* By default, this disables the WordPress Heartbeat API in order to save resources and speed up AJAX calls.
*
* @since 2.0
*/
public function prepare() {
if ( $this->disable_heartbeat ) {
wp_deregister_script( 'heartbeat' );
wp_register_script( 'heartbeat', false );
}
}
/**
* Title to be displayed on the menu as well in the page title.
*
* @return string
* @since 2.0
*/
abstract public function get_title();
/**
* Callback for the page rendering action.
*
* @return callable
* @since 2.0
*/
abstract public function get_render_callback();
/**
* Callback for the page load action (load-{$hook}).
*
* @return null|callable Optional.
* @since 2.0
*/
public function get_load_callback() {
return null;
}
/**
* Page name slug.
*
* Should be taken directly from constants in Types_Admin_Menu.
*
* @return string
* @since 2.0
*/
abstract public function get_page_name();
/**
* User capability required to display the submenu item and access the page.
*
* @return string
* @since 2.0
*/
abstract public function get_required_capability();
}