Send animated images verbatim

blink/chatwindow.py

@@ -492,7 +492,10 @@ class Thumbnail(object):
     def __new__(cls, filename):
         image_reader = QImageReader(filename)
         if image_reader.canRead():
-            instance = super(Thumbnail, cls).__new__(cls)
+            if image_reader.supportsAnimation() and image_reader.imageCount() > 1:
+                image_format = str(image_reader.format())
+                image_data = str(image_reader.device().readAll())
+            else:
                 image_size = image_reader.size()
                 if image_size.height() > 720:
                     image_reader.setScaledSize(image_size * 720 / image_size.height())
@@ -500,7 +503,9 @@ class Thumbnail(object):
                 image_buffer = QBuffer()
                 image_format = 'png' if image.hasAlphaChannel() else 'jpeg'
                 image.save(image_buffer, image_format)
-            instance.__dict__['data'] = str(image_buffer.data())
+                image_data = str(image_buffer.data())
+            instance = super(Thumbnail, cls).__new__(cls)
+            instance.__dict__['data'] = image_data
             instance.__dict__['type'] = 'image/{}'.format(image_format)
         else:
             instance = None