Fix show_more_link and more_link_text default values

CHANGES.rst

@@ -5,7 +5,8 @@ Changelog
 1.1.2 (unreleased)
 ------------------
 
-- Nothing changed yet.
+- Fix default values for ``show_more_link`` and ``more_link_text``
+  [petschki]
 
 
 1.1.1 (2024-06-06)

src/collective/gridlisting/behaviors/grid_listing.py

@@ -2,9 +2,9 @@
 from plone import api
 from plone import schema
 from plone.autoform.interfaces import IFormFieldProvider
+from plone.base.utils import safe_hasattr
 from plone.supermodel import directives
 from plone.supermodel import model
-from Products.CMFPlone.utils import safe_hasattr
 from z3c.form.interfaces import IValue
 from zope.component import adapter
 from zope.interface import implementer
@@ -104,7 +104,6 @@ class IGridListing(model.Schema):
         ),
         required=False,
         default=False,
-        missing_value=False,
     )
 
     more_link_text = schema.TextLine(

src/collective/gridlisting/browser/grid_listing.pt

@@ -26,9 +26,8 @@
                      thumb_scale_summary python:view.w['IGridListing.preview_scale'].value or 'preview';
                      enable_masonry python:'selected' in view.w['IGridListing.enable_masonry'].value;
                      masonry_options python:view.w['IGridListing.masonry_options'].value;
-                     show_more_link_val python:view.w['IGridListing.show_more_link'].value or [];
-                     show_more_link python:'selected' in show_more_link_val;
-                     more_link_text python:view.w['IGridListing.more_link_text'].value or 'more';
+                     show_more_link python:view.get_default('show_more_link');
+                     more_link_text python:view.get_default('more_link_text');
                    "
       >
         <div class="row ${row_css_class} ${python:'pat-masonry' if enable_masonry else ''}"

src/collective/gridlisting/browser/views.py

@@ -1,11 +1,33 @@
+from Acquisition import aq_inner
+from plone import api
 from plone.app.contenttypes.browser.collection import CollectionView
 from plone.app.contenttypes.browser.folder import FolderView
 from plone.dexterity.browser.view import DefaultView
 
 
-class FolderGridListing(FolderView, DefaultView):
+class GridListingBase(DefaultView):
+
+    def get_default(self, attr):
+        context = aq_inner(self.context)
+        val = getattr(context, attr, None)
+        if val is None:
+            if attr in self.w:
+                # return widgets default attribute adapter
+                return self.w[attr].value
+            return
+        return val
+
+    @property
+    def show_about(self):
+        # use registry setting even if not anonymous
+        return api.portal.get_registry_record(
+            "plone.allow_anon_views_about", default=False
+        )
+
+
+class FolderGridListing(GridListingBase, FolderView):
     pass
 
 
-class CollectionGridListing(CollectionView, DefaultView):
+class CollectionGridListing(GridListingBase, CollectionView):
     pass