reduce adressbook change events and handling

... from four to one on avatar updates

Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>

apps/user_ldap/lib/User_Proxy.php

@@ -253,7 +253,7 @@ class User_Proxy extends Proxy implements \OCP\IUserBackend, \OCP\UserInterface,
 	 * @return boolean either the user can or cannot
 	 */
 	public function canChangeAvatar($uid) {
-		return $this->handleRequest($uid, 'canChangeAvatar', array($uid));
+		return $this->handleRequest($uid, 'canChangeAvatar', [$uid], true);
 	}
 
 	/**

lib/private/Avatar/UserAvatar.php

@@ -97,7 +97,7 @@ class UserAvatar extends Avatar {
 
 		$this->validateAvatar($img);
 
-		$this->remove();
+		$this->remove(true);
 		$type = $this->getAvatarImageType($img);
 		$file = $this->folder->newFile('avatar.' . $type);
 		$file->putContent($data);
@@ -193,7 +193,7 @@ class UserAvatar extends Avatar {
 	 * @throws \OCP\Files\NotPermittedException
 	 * @throws \OCP\PreConditionNotMetException
 	 */
-	public function remove() {
+	public function remove(bool $silent = false) {
 		$avatars = $this->folder->getDirectoryListing();
 
 		$this->config->setUserValue($this->user->getUID(), 'avatar', 'version',
@@ -203,7 +203,9 @@ class UserAvatar extends Avatar {
 			$avatar->delete();
 		}
 		$this->config->setUserValue($this->user->getUID(), 'avatar', 'generated', 'true');
-		$this->user->triggerChange('avatar', '');
+		if(!$silent) {
+			$this->user->triggerChange('avatar', '');
+		}
 	}
 
 	/**