css file inclusion mechanism (same as for javascript files)

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@20271 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/bootstrap/erp5_xhtml_style/SkinTemplateItem/portal_skins/erp5_xhtml_style/template_erp5_xhtml_style.xml

@@ -3,11 +3,8 @@
   <record id="1" aka="AAAAAAAAAAE=">
     <pickle>
       <tuple>
-        <tuple>
-          <string>Products.PageTemplates.ZopePageTemplate</string>
-          <string>ZopePageTemplate</string>
-        </tuple>
-        <none/>
+        <global name="ZopePageTemplate" module="Products.PageTemplates.ZopePageTemplate"/>
+        <tuple/>
       </tuple>
     </pickle>
     <pickle>
@@ -76,11 +73,8 @@ IDEAS:\n
           <meta http-equiv="Content-Style-Type" content="text/css" />\n
           <title tal:define="title title | string:ERP5"\n
                  tal:content="python: \'%s | %s\' % (title, here.getPortalObject().title_or_id())"></title>\n
-          <tal:block tal:repeat="css css_list">\n
-            <link tal:attributes="href css" type="text/css" rel="stylesheet" />\n
-          </tal:block>\n
           <tal:block tal:replace="nothing">\n
-            <!-- Render each field\'s css and javascript. -->\n
+            <!-- Render each field\'s css and include css\'s and javascripts. -->\n
           </tal:block>\n
           <tal:block tal:condition="python: form is not None">\n
             <tal:block tal:repeat="group python: [x for x in form.get_groups(include_empty=0) if x != \'hidden\']">\n
@@ -91,11 +85,15 @@ IDEAS:\n
                          tal:attributes="type python:\'text/css\'">\n
                   </style>\n
                 </tal:block>\n
+                <tal:block tal:define="dummy python: css_list.extend(field.get_css_list(REQUEST=request))" />\n
                 <tal:block tal:define="dummy python: js_list.extend(field.get_javascript_list(REQUEST=request))" />\n
               </tal:block>\n
             </tal:block>\n
           </tal:block>\n
           <!-- May need to remove duplicates -->\n
+          <tal:block tal:repeat="css css_list">\n
+            <link tal:attributes="href css" type="text/css" rel="stylesheet" />\n
+          </tal:block>\n
           <tal:block tal:repeat="js js_list">\n
             <script tal:attributes="src js" type="text/javascript"></script>\n
           </tal:block>\n

product/ERP5Form/FormulatorPatch.py

@@ -496,6 +496,15 @@ def Widget_render_css(self, field, REQUEST):
   pass
 Widget.render_css = Widget_render_css
 
+def Widget_get_css_list(self, field, REQUEST):
+  """
+    Return CSS needed by the widget - to be overwritten in field classes.
+    Should return a list of CSS file names.
+    These names will be appended to global css_list and included in a rendered page.
+  """
+  return []
+Widget.get_css_list = Widget_get_css_list
+
 def Widget_get_javascript_list(self, field, REQUEST):
   """
     Return JS needed by the widget - to be overwritten in field classes.
@@ -1456,16 +1465,26 @@ Field.render_pdf = Field_render_pdf
 
 def Field_render_css(self, REQUEST=None):
   """
-  Generate css content which will be added in the html header.
+  Generate css content which will be added inline.
 
   XXX key parameter may be needed.
   """
   return self.widget.render_css(self, REQUEST)
 Field.render_css = Field_render_css
 
+def Field_get_css_list(self, REQUEST=None):
+  """
+    Returns list of css sheets needed by the field
+    to be included in global css imports
+  """
+  return self.widget.get_css_list(self, REQUEST)
+Field.get_css_list = Field_get_css_list
+
+
 def Field_get_javascript_list(self, REQUEST=None):
   """
     Returns list of javascript needed by the field
+    to be included in global js imports
   """
   return self.widget.get_javascript_list(self, REQUEST)
 Field.get_javascript_list = Field_get_javascript_list