Moved css pattern outside css generation view (css.IconifiedCategory) so it is reusable by an external package.

See DLIBBDC-4124

Author: gbastien

CHANGES.rst

@@ -12,6 +12,9 @@ Changelog
   [chris-adam]
 - Added page reload possibility
   [sgeulette]
+- Moved css pattern outside css generation view (`css.IconifiedCategory`)
+  so it is reusable by an external package.
+  [gbastien]
 
 0.69 (2025-06-23)
 -----------------

src/collective/iconifiedcategory/browser/css.py

@@ -10,15 +10,15 @@
 from collective.iconifiedcategory import utils
 from Products.Five import BrowserView
 
+css_pattern = (u".{0} {{ padding-left: 1.4em; background: "
+    u"transparent url('{1}') no-repeat top left; "
+    u"background-size: contain; }}")
 
 class IconifiedCategory(BrowserView):
 
     def __call__(self, *args, **kwargs):
         self.request.response.setHeader('Content-Type', 'text/css')
         content = []
-        css = (u".{0} {{ padding-left: 1.4em; background: "
-               u"transparent url('{1}') no-repeat top left; "
-               u"background-size: contain; }}")
         if utils.has_config_root(self.context) is False:
             return ''
         # sort_on=None to avoid useless sort_on="getObjPositionInParent"
@@ -29,5 +29,6 @@ def __call__(self, *args, **kwargs):
             obj = category._unrestrictedGetObject()
             category_id = utils.calculate_category_id(obj)
             url = u'{0}/@@download'.format(obj.absolute_url())
-            content.append(css.format(utils.format_id_css(category_id), url))
+            content.append(css_pattern.format(
+                utils.format_id_css(category_id), url))
         return ' '.join(content)