Add upstream plugins

Signed-off-by: Adrian Nöthlich <git@promasu.tech>

wp-content/plugins/all-in-one-event-calendar/lib/date/date-time-zone.php

@@ -0,0 +1,53 @@
+<?php
+
+/**
+ * Wrapper for `DateTimeZone` to extend it with convenient methods
+ *
+ * @author     Justas Butkus <justas@butkus.lt>
+ * @since      2013.03.06
+ *
+ * @package    AllInOneCalendar
+ * @subpackage AllInOneCalendar.Utility.Time
+ */
+class Ai1ec_Date_Date_Time_Zone extends DateTimeZone {
+
+    /**
+     * Map of transitions details for given timestamp
+     * {@see DateTimeZone::getTransitions()} for representation of details.
+     * Return a map of prev(ious), curr(ent) and next transitions for
+     * a given timestamp.
+     *
+     * @NOTICE: if we start accepting PHP 5.3 - update getTransitions
+     * usage, to add offsets.
+     *
+     * @param int $timestamp UNIX timestamp (UTC0) for which to find transitions
+     *
+     * @return array Map of prev|curr|next transitions
+     */
+    public function getDetailedTransitions( $timestamp ) {
+        $transition_list = $this->getTransitions();
+        $output          = array(
+            'prev' => NULL,
+            'curr' => NULL,
+            'next' => NULL,
+        );
+        $previous = $current = NULL;
+        foreach ( $transition_list as $transition ) {
+            if (
+                NULL !== $previous &&
+                $timestamp >= $current['ts'] &&
+                $timestamp < $transition['ts']
+            ) {
+                $output['prev'] = $previous;
+                $output['curr'] = $current;
+                $output['next'] = $transition;
+                break;
+            }
+            $previous = $current;
+            $current        = $transition;
+        }
+        unset( $previous, $current, $transition_list, $transition );
+        return $output;
+    }
+
+}