use webp for avatars and convert current avatars, fixes #3183

Closes #3183

Merge request studip/studip!2326

1 files changed, 12 insertions, 57 deletions

diff --git a/lib/classes/InstituteAvatar.class.php b/lib/classes/InstituteAvatar.class.php
index e05c345..8adbfba 100644
--- a/lib/classes/InstituteAvatar.class.php
+++ b/lib/classes/InstituteAvatar.class.php
@@ -1,89 +1,44 @@
 <?php
-# Lifter010: TODO
-
-/*
- * Copyright (C) 2009 - Marcus Lunzenauer (mlunzena@uos)
- * André Noack <noack@data-quest.de>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- */
-
 /**
  * This class represents the avatar of a institute.
  *
- * @package    studip
- * @subpackage lib
- *
  * @author    André Noack <noack@data-quest.de>
+ * @author    Marcus Lunzenauer <mlunzena@uos>
  * @copyright (c) Authors
+ * @license   GPL2 or any later version
  * @since     1.10
  */
 class InstituteAvatar extends CourseAvatar
 {
+    public const AVATAR_TYPE = 'institute';
 
     /**
-     * Returns an avatar object of the appropriate class.
-     *
-     * @param  string  the course's id
-     *
-     * @return mixed   the course's avatar.
-     */
-    static function getAvatar($id)
-    {
-        return new InstituteAvatar($id);
-    }
-
-    /**
-     * Returns an avatar object for "nobody".
-     *
-     * @return mixed   the course's avatar.
-     */
-    static function getNobody()
-    {
-        return new InstituteAvatar('nobody');
-    }
-
-    /**
-     * Returns the URL to the institute' avatars.
+     * Returns the CSS class to use for this avatar image.
      *
-     * @return string     the URL to the avatars
+     * @param string  $size one of the constants Avatar::(NORMAL|MEDIUM|SMALL)
+     * @return string CSS class to use for the avatar
      */
-    function getAvatarDirectoryUrl()
+    protected function getCssClass($size)
     {
-        return $GLOBALS['DYNAMIC_CONTENT_URL'] . "/institute";
-    }
-
-
-    /**
-     * Returns the file system path to the institute' avatars
-     *
-     * @return string      the file system path to the avatars
-     */
-    function getAvatarDirectoryPath()
-    {
-        return $GLOBALS['DYNAMIC_CONTENT_PATH'] . "/institute";
+        return "institute-avatar-{$size} institute-{$this->user_id}";
     }
 
     /**
      * Return the default title of the avatar.
      * @return string the default title
      */
-    function getDefaultTitle()
+    public function getDefaultTitle()
     {
         $institute = Institute::find($this->user_id);
-        return $institute
-               ? $institute->name
-               : Avatar::NOBODY;
+        return $institute ? (string) $institute->name : self::NOBODY;
     }
     
     /**
      * Return if avatar is visible to the current user.
      * @return boolean: true if visible
      */
-    protected function checkAvatarVisibility() {
+    protected function checkAvatarVisibility()
+    {
         //no special conditions for visibility of course-avatars yet
         return true;
     }