# HG changeset patch
# User Thierry Florac <thierry.florac@onf.fr>
# Date 1542983161 -3600
# Node ID 44d8c16d96172019bcc7a907f90729d16ca5aad6
# Parent  72e28694c4cb01c7674611c4907ed0adec990c95
Added "tags(context)" TALES extension

diff -r 72e28694c4cb -r 44d8c16d9617 src/pyams_default_theme/viewlet/tag/__init__.py
--- a/src/pyams_default_theme/viewlet/tag/__init__.py	Fri Nov 23 15:25:34 2018 +0100
+++ b/src/pyams_default_theme/viewlet/tag/__init__.py	Fri Nov 23 15:26:01 2018 +0100
@@ -10,16 +10,18 @@
 # FOR A PARTICULAR PURPOSE.
 #
 
-
 __docformat__ = 'restructuredtext'
 
 from pyramid.decorator import reify
+from zope.contentprovider.interfaces import IContentProvider
 from zope.interface import Interface
 
 from pyams_content.component.theme import ITagsInfo, ITagsManager
 from pyams_sequence.reference import get_reference_target
 from pyams_skin.layer import IPyAMSLayer, IPyAMSUserLayer
 from pyams_template.template import template_config
+from pyams_utils.adapter import ContextRequestViewAdapter, adapter_config
+from pyams_utils.interfaces.tales import ITALESExtension
 from pyams_viewlet.viewlet import ViewContentProvider, contentprovider_config
 
 
@@ -49,3 +51,19 @@
     def tags(self):
         tags = self.tags_info.tags or ()
         yield from sorted(tags, key=lambda x: (x.order or 999, x.alt or x.label))
+
+
+@adapter_config(name='tags', context=(Interface, Interface, Interface), provides=ITALESExtension)
+class TagsTalesExtension(ContextRequestViewAdapter):
+    """tales:tags(context) TALES extension"""
+
+    def render(self, context=None):
+        if context is None:
+            context = self.context
+        provider = self.request.registry.queryMultiAdapter((context, self.request, self.view), IContentProvider,
+                                                           name='pyams.tags')
+        if provider is not None:
+            provider.update()
+            return provider.render()
+        else:
+            return ''