Allow AdminPageChooser edit link to be hidden, and hide it on the page permissions interface

wagtail/wagtailadmin/templates/wagtailadmin/widgets/chooser.html

@@ -17,7 +17,9 @@
                 <li><button type="button" class="action-clear button-small button-secondary">{{ widget.clear_choice_text }}</button></li>
             {% endif %}
             <li><button type="button" class="action-choose button-small button-secondary">{{ widget.choose_another_text }}</button></li>
-            <li><a href="{% block edit_chosen_item_url %}#{% endblock %}" class="edit-link button button-small button-secondary" target="_blank">{{ widget.link_to_chosen_text }}</a></li>
+            {% if widget.show_edit_link %}
+                <li><a href="{% block edit_chosen_item_url %}#{% endblock %}" class="edit-link button button-small button-secondary" target="_blank">{{ widget.link_to_chosen_text }}</a></li>
+            {% endif %}
         </ul>
     </div>
 

wagtail/wagtailadmin/widgets.py

@@ -66,6 +66,7 @@ class AdminChooser(WidgetWithScript, widgets.Input):
     choose_another_text = _("Choose another item")
     clear_choice_text = _("Clear choice")
     link_to_chosen_text = _("Edit this item")
+    show_edit_link = True
 
     def get_instance(self, model_class, value):
         # helper method for cleanly turning 'value' into an instance object
@@ -106,6 +107,8 @@ class AdminChooser(WidgetWithScript, widgets.Input):
             self.clear_choice_text = kwargs.pop('clear_choice_text')
         if 'link_to_chosen_text' in kwargs:
             self.link_to_chosen_text = kwargs.pop('link_to_chosen_text')
+        if 'show_edit_link' in kwargs:
+            self.show_edit_link = kwargs.pop('show_edit_link')
         super(AdminChooser, self).__init__(**kwargs)
 
 

wagtail/wagtailusers/forms.py

@@ -229,7 +229,8 @@ class GroupForm(forms.ModelForm):
 
 
 class GroupPagePermissionForm(forms.ModelForm):
-    page = forms.ModelChoiceField(queryset=Page.objects.all(), widget=AdminPageChooser())
+    page = forms.ModelChoiceField(queryset=Page.objects.all(),
+        widget=AdminPageChooser(show_edit_link=False))
 
     class Meta:
         model = GroupPagePermission