[Zope3-checkins] SVN: Zope3/branches/roger-bostonskin/src/zope/viewlet/ Added base viewlets for javascript and css resource files

[Roger Ineichen]

Log message for revision 38884:
  Added base viewlets for javascript and css resource files

Changed:
  A   Zope3/branches/roger-bostonskin/src/zope/viewlet/css_viewlet.pt
  A   Zope3/branches/roger-bostonskin/src/zope/viewlet/javascript_viewlet.pt
  U   Zope3/branches/roger-bostonskin/src/zope/viewlet/viewlet.py

-=-
Added: Zope3/branches/roger-bostonskin/src/zope/viewlet/css_viewlet.pt
===================================================================
--- Zope3/branches/roger-bostonskin/src/zope/viewlet/css_viewlet.pt	2005-10-07 13:41:40 UTC (rev 38883)
+++ Zope3/branches/roger-bostonskin/src/zope/viewlet/css_viewlet.pt	2005-10-07 13:42:40 UTC (rev 38884)
@@ -0,0 +1,4 @@
+<link type="text/css" rel="stylesheet" href="somestyle.css" media="all"
+      tal:attributes="rel viewlet/getRel;
+			                href viewlet/getURL;
+                      media viewlet/getMedia" />


Property changes on: Zope3/branches/roger-bostonskin/src/zope/viewlet/css_viewlet.pt
___________________________________________________________________
Name: svn:eol-style
   + native

Added: Zope3/branches/roger-bostonskin/src/zope/viewlet/javascript_viewlet.pt
===================================================================
--- Zope3/branches/roger-bostonskin/src/zope/viewlet/javascript_viewlet.pt	2005-10-07 13:41:40 UTC (rev 38883)
+++ Zope3/branches/roger-bostonskin/src/zope/viewlet/javascript_viewlet.pt	2005-10-07 13:42:40 UTC (rev 38884)
@@ -0,0 +1,3 @@
+<script type="text/javascript" src="some-library.js"
+        tal:attributes="src viewlet/getURL">
+</script>


Property changes on: Zope3/branches/roger-bostonskin/src/zope/viewlet/javascript_viewlet.pt
___________________________________________________________________
Name: svn:eol-style
   + native

Modified: Zope3/branches/roger-bostonskin/src/zope/viewlet/viewlet.py
===================================================================
--- Zope3/branches/roger-bostonskin/src/zope/viewlet/viewlet.py	2005-10-07 13:41:40 UTC (rev 38883)
+++ Zope3/branches/roger-bostonskin/src/zope/viewlet/viewlet.py	2005-10-07 13:42:40 UTC (rev 38884)
@@ -17,11 +17,14 @@
 """
 __docformat__ = 'restructuredtext'
 
+import os
 import sys
 import zope.interface
+
 from zope.app.pagetemplate.simpleviewclass import simple
 from zope.app.pagetemplate.viewpagetemplatefile import ViewPageTemplateFile
 from zope.app.publisher.browser import BrowserView
+from zope.app.traversing import api
 
 from zope.viewlet import interfaces
 
@@ -87,3 +90,55 @@
                    '__name__' : name})
 
     return class_
+
+
+class ResourceViewletBase(object):
+
+    _path = None
+
+    def getURL(self):
+        resource = api.traverse(self.context, '++resource++' + self._path,
+                                request=self.request)
+        return resource()
+
+    def __call__(self, *args, **kw):
+        return self.index(*args, **kw)
+
+
+def JavaScriptViewlet(path):
+    """Create a viewlet that can simply insert a javascript link."""
+    src = os.path.join(os.path.dirname(__file__), 'javascript_viewlet.pt')
+
+    klass = type('JavaScriptViewlet',
+                 (ResourceViewletBase, SimpleViewlet),
+                  {'index': ViewletPageTemplateFile(src),
+                   '_path': path})
+
+    return klass
+
+
+class CSSResourceViewletBase(ResourceViewletBase):
+
+    _media = 'all'
+    _rel = 'stylesheet'
+
+    def getMedia(self):
+        return self._media
+
+    def getRel(self):
+        return self._rel
+
+
+def CSSViewlet(path, media="all", rel="stylesheet"):
+    """Create a viewlet that can simply insert a javascript link."""
+    src = os.path.join(os.path.dirname(__file__), 'css_viewlet.pt')
+
+    klass = type('CSSViewlet',
+                 (CSSResourceViewletBase, SimpleViewlet),
+                  {'index': ViewletPageTemplateFile(src),
+                   '_path': path,
+                   '_media':media,
+                   '_rel':rel})
+
+    return klass
+