init

wp-content/plugins/jetpack/modules/shortcodes/upcoming-events.php

@@ -0,0 +1,66 @@
+<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
+
+/**
+ * Display a list of upcoming events from a calendar.
+ *
+ * @package automattic/jetpack
+ */
+
+/**
+ * Register a upcomingevents shortcode.
+ * Most of the heavy lifting done in iCalendarReader class,
+ * where the icalendar_render_events() function controls the display.
+ */
+class Upcoming_Events_Shortcode {
+
+	/**
+	 * Register things.
+	 */
+	public static function init() {
+		add_shortcode( 'upcomingevents', array( __CLASS__, 'shortcode' ) );
+	}
+
+	/**
+	 * Register the shortcode.
+	 *
+	 * @param array $atts Shortcode attributes.
+	 */
+	public static function shortcode( $atts = array() ) {
+		require_once JETPACK__PLUGIN_DIR . '/_inc/lib/icalendar-reader.php';
+		$atts = shortcode_atts(
+			array(
+				'url'    => '',
+				'number' => 0,
+			),
+			$atts,
+			'upcomingevents'
+		);
+		$args = array(
+			'context' => 'shortcode',
+			'number'  => absint( $atts['number'] ),
+		);
+
+		if ( empty( $atts['url'] ) ) {
+			// If the current user can access the Appearance->Widgets page.
+			if ( current_user_can( 'edit_theme_options' ) ) {
+				return sprintf( '<p>%s</p>', __( 'You must specify a URL to an iCalendar feed in the shortcode. This notice is only displayed to administrators.', 'jetpack' ) );
+			}
+			return self::no_upcoming_event_text();
+		}
+		$events = icalendar_render_events( $atts['url'], $args );
+
+		if ( ! $events ) {
+			$events = self::no_upcoming_event_text();
+		}
+
+		return $events;
+	}
+
+	/**
+	 * Returns No Upcoming Event text.
+	 */
+	private static function no_upcoming_event_text() {
+		return sprintf( '<p>%s</p>', __( 'No upcoming events', 'jetpack' ) );
+	}
+}
+add_action( 'after_setup_theme', array( 'Upcoming_Events_Shortcode', 'init' ), 2 );