echo the Widget Content * **public function form($instance)** -> echo the Settings of the Widget * * @author Stefan Herndler * @since 1.5.0 */ abstract class Footnotes_Widget_Base extends WP_Widget { /** * Returns an unique ID as string used for the Widget Base ID. * * @since 1.5.0 * @return string */ abstract protected function get_id(); /** * Returns the Public name of child Widget to be displayed in the Configuration page. * * @since 1.5.0 * @return string */ abstract protected function get_name(); /** * Returns the Description of the child widget. * * @since 1.5.0 * @return string */ abstract protected function get_description(); /** * Returns the width of the Widget. Default width is 250 pixel. * * @since 1.5.0 * @return int */ protected function get_widget_width() { return 250; } /** * Class Constructor. Registers the child Widget to WordPress. * * @since 1.5.0 * * - Update: replace deprecated function WP_Widget() with recommended __construct(), thanks to @dartiss code contribution. * * @since 1.6.4 * @contributor @dartiss * @link https://plugins.trac.wordpress.org/browser/footnotes/trunk/class/widgets/base.php?rev=1445720 * “The called constructor method for WP_Widget in Footnotes_Widget_ReferenceContainer is deprecated since version 4.3.0! Use __construct() instead.” */ public function __construct() { $widget_options = array( 'classname' => __CLASS__, 'description' => $this->get_description(), ); $control_options = array( 'id_base' => strtolower( $this->get_id() ), 'width' => $this->get_widget_width(), ); // Registers the Widget. parent::__construct( strtolower( $this->get_id() ), // Unique ID for the widget, has to be lowercase. $this->get_name(), // Plugin name to be displayed. $widget_options, // Optional Widget Options. $control_options // Optional Widget Control Options. ); } }