add subviewmode feature

browser/common.py

@@ -95,16 +95,20 @@ class NameField(schema.ASCIILine):
 class ViewMode(object):
 
     def __init__(self, name='view', title=None, url=None, active=False,
-                 description=u''):
+                 description=u'', subViewModes=Jeep()):
         self.name = name
         self.title = title
         self.url = url
         self.active = active
         self.description = description
+        self.subViewModes = subViewModes
 
     @property
     def cssClass(self):
-        return self.active and u'active' or u'inactive'
+        result = self.active and u'active' or u'inactive'
+        if self.subViewModes:
+            result += u' sub-modes'
+        return result
 
 
 class IAddForm(Interface):

browser/node_macros.pt

@@ -271,6 +271,17 @@
                          title mode/description"
          tal:content="mode/title"
          i18n:translate="" />
+      <ul class="sub-view-modes"
+          tal:define="subModes mode/subViewModes|nothing"
+          tal:condition="subModes">
+        <li tal:repeat="mode subModes"
+            tal:attributes="class mode/cssClass">
+          <a tal:attributes="href mode/url;
+                             title mode/description;"
+             tal:content="mode/title"
+             i18n:translate=""></a>
+        </li>
+      </ul>
     </li>
   </ul>
 </metal:actions>