merged master

[lhc/web/wiklou.git] / includes / filerepo / file / File.php

diff --git a/includes/filerepo/file/File.php b/includes/filerepo/file/File.php
index 133a956..dd54455 100644 (file)
--- a/includes/filerepo/file/File.php
+++ b/includes/filerepo/file/File.php
@@ -464,6 +464,39 @@ abstract class File {
                }
        }
 
+       /**
+        * Will the thumbnail be animated if one would expect it to be.
+        *
+        * Currently used to add a warning to the image description page
+        *
+        * @return bool false if the main image is both animated
+        *   and the thumbnail is not. In all other cases must return
+        *   true. If image is not renderable whatsoever, should
+        *   return true.
+        */
+       public function canAnimateThumbIfAppropriate() {
+               $handler = $this->getHandler();
+               if ( !$handler ) {
+                       // We cannot handle image whatsoever, thus
+                       // one would not expect it to be animated
+                       // so true.
+                       return true;
+               } else {
+                       if ( $this->allowInlineDisplay()
+                               && $handler->isAnimatedImage( $this )
+                               && !$handler->canAnimateThumbnail( $this )
+                       ) {
+                               // Image is animated, but thumbnail isn't.
+                               // This is unexpected to the user.
+                               return false;
+                       } else {
+                               // Image is not animated, so one would
+                               // not expect thumb to be
+                               return true;
+                       }
+               }
+       }
+
        /**
         * Get handler-specific metadata
         * Overridden by LocalFile, UnregisteredLocalFile