WIP New v2 plugin with widget and shortcode, and more WP friendly markup.

includes/squat-radar-instance.php

@@ -0,0 +1,90 @@
+<?php
+
+/**
+ * Manage the Squat Radar plugin.
+ *
+ * @package Squat_Radar
+ */
+
+defined( 'ABSPATH' ) || exit;
+
+/**
+ * Singleton for managing Squat Radar.
+ */
+class Squat_Radar_Instance {
+
+	private static $instance = null;
+
+	/**
+	 * Creates or returns an instance of this class.
+	 *
+	 * @return	A single instance of this class.
+	 */
+	public static function get_instance() {
+		return null == self::$instance ? self::$instance = new self : self::$instance;
+	}
+
+	private function __construct() {
+		include SQUAT_RADAR_DIR . 'includes/squat-radar-widget.php';
+		include SQUAT_RADAR_DIR . 'includes/squat-radar-connector.php';
+		include SQUAT_RADAR_DIR . 'includes/squat-radar-formatter.php';
+
+		add_shortcode( 'squat_radar_sidebar', array($this, 'print_sidebar') );
+		// add_shortcode( 'squat_radar_widget', array( $this, 'shortcode' ) );
+		add_action( 'plugins_loaded', array( $this, 'i18n' ), 5 );
+		add_action( 'widgets_init', array( $this, 'add_sidebar' ), 20 );
+		add_action( 'widgets_init', array('Squat_Radar_Widget', 'register_widget') );
+
+		Squat_Radar_Formatter::register();
+	}
+
+	/**
+	 * Load translation files
+	 *
+	 * @since 0.2.4
+	 */
+	function i18n() {
+		load_plugin_textdomain( 'squat-radar', false, '/languages' );
+	}
+
+	/**
+	 * output a widget using 'widget' shortcode.
+	 *
+	 * Requires the widget ID.
+	 * You can overwrite widget args: before_widget, before_title, after_title, after_widget
+	 *
+	 * @example [widget id="text-1"]
+	 * @since 0.1
+	 */
+	public function shortcode( $atts, $content = null ) {
+		$atts['echo'] = false;
+		return $this->do_widget( $atts );
+	}
+
+	function print_sidebar() {
+		ob_start();
+
+		if (is_active_sidebar('squat_widget_gebied')) {
+			dynamic_sidebar('squat_widget_gebied');
+		}
+
+		return ob_get_clean();
+	}
+
+
+
+	function add_sidebar() {
+
+		register_sidebar(array(
+			'name'          => __( 'Squat Radar Shortcodes'),
+			'description'=> __( 'This widget area is not by default displayed on frontend. It can be displayed with all its widgets with the [squat_radar] shortcode.', 'squat-radar' ),
+			'id'            => 'squat_radar_widget_shortcode',
+			'before_widget' => '<div class="widget %2$s">',
+			'after_widget'  => '</div>',
+			'before_title'  => '<h3 class="widget-title">',
+			'after_title'   => '</h3>',
+		));
+
+	}
+
+}