Allow easier customizations

plone · Apr 19, 2018 · a20d535 · a20d535 · jenkins-plone-org · Apr 19, 2018
1 parent c5358f2
commit a20d535
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Showing 2 changed files with 13 additions and 5 deletions.
diff --git a/CHANGES.rst b/CHANGES.rst
@@ -10,7 +10,9 @@ Breaking changes:
 
 New features:
 
-- Target Zope 4 (test chnages only).
+- It is now possible to customize in an easier way the ``@@images`` view
+  [ale-rt]
+- Target Zope 4 (test changes only).
 
 Bug fixes:
 

diff --git a/plone/namedfile/scaling.py b/plone/namedfile/scaling.py
@@ -31,6 +31,7 @@
 import logging
 import six
 
+
 logger = logging.getLogger(__name__)
 _marker = object()
 
@@ -282,6 +283,7 @@ class ImageScaling(BrowserView):
     # Ignore some stacks to help with accessing via webdav, otherwise you get a
     # 404 NotFound error.
     _ignored_stacks = ('manage_DAVget', 'manage_FTPget')
+    _scale_view_class = ImageScale
 
     def publishTraverse(self, request, name):
         """ used for traversal via publisher, i.e. when using as a url """
@@ -301,15 +303,19 @@ def publishTraverse(self, request, name):
             info = storage.get(name)
             if info is None:
                 raise NotFound(self, name, self.request)
-            scale_view = ImageScale(self.context, self.request, **info)
+            scale_view = self._scale_view_class(
+                self.context,
+                self.request,
+                **info
+            )
             alsoProvides(scale_view, IStableImageScale)
             return scale_view
         else:
             # otherwise `name` must refer to a field...
             if '.' in name:
                 name, ext = name.rsplit('.', 1)
             value = getattr(self.context, name)
-            scale_view = ImageScale(
+            scale_view = self._scale_view_class(
                 self.context,
                 self.request,
                 data=value,
@@ -323,7 +329,7 @@ def traverse(self, name, furtherPath):
         # validate access
         value = self.guarded_orig_image(name)
         if not furtherPath:
-            image = ImageScale(
+            image = self._scale_view_class(
                 self.context,
                 self.request,
                 data=value,
@@ -445,7 +451,7 @@ def scale(
             **parameters
         )
         info['fieldname'] = fieldname
-        scale_view = ImageScale(self.context, self.request, **info)
+        scale_view = self._scale_view_class(self.context, self.request, **info)
         return scale_view
 
     def calculate_srcset(