Handle the move operation properly between shared calendars

- Introduce a new CalendarObjectMovedEvent typed event dedicated for
  this operation
- Handle the event in the activity backend and add new appropriate activity subjects

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

1 files changed, 7 insertions, 0 deletions

diff --git a/apps/dav/lib/CalDAV/CalendarObject.php b/apps/dav/lib/CalDAV/CalendarObject.php
index c927254fba3..32bcff900c2 100644
--- a/apps/dav/lib/CalDAV/CalendarObject.php
+++ b/apps/dav/lib/CalDAV/CalendarObject.php
@@ -162,4 +162,11 @@ class CalendarObject extends \Sabre\CalDAV\CalendarObject {
 	public function getPrincipalUri(): string {
 		return $this->calendarInfo['principaluri'];
 	}
+
+	public function getOwner(): ?string {
+		if (isset($this->calendarInfo['{http://owncloud.org/ns}owner-principal'])) {
+			return $this->calendarInfo['{http://owncloud.org/ns}owner-principal'];
+		}
+		return parent::getOwner();
+	}
 }