work in progress: layout management

git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@2910 fd906abe-77d9-0310-91a1-e0d9ade77398

external/base.py

@@ -195,11 +195,9 @@ class Extractor(Base):
         #data = instance.applyTemplate(mode='export')
         data = instance.applyTemplate(mode='edit')
         noexp = getattr(aObj, '_noexportAttributes', ())
-        for attr in noexp:
+        for attr in tuple(noexp) + ('title', 'name'):
             if attr in data:
                 del data[attr]
-        if 'title' in data:
-            del data['title']
         data['description'] = obj.description
         if not data['description']:
             del data['description']

interfaces.py

@@ -427,6 +427,19 @@ class IBaseNode(IOrderedContainer):
         """ Return the loops root object.
         """
 
+    def getParentNode(nodeTypes=None):
+        """ Return the next node up the node hierarchy. If the nodeTypes
+            parameter is given, search for the next node that has one of
+            the types in the nodeTypes list.
+
+            Return None if no suitable node can be found.
+        """
+
+    def getChildNodes(nodeTypes=None):
+        """ Return a sequence of nodes contained in this node. If the
+            nodeTypes parameter is given return only nodes of these types.
+        """
+
 
 class INodeSchema(IView):
 
@@ -456,19 +469,6 @@ class INode(INodeSchema, IBaseNode):
     """
     contains(IView)
 
-    def getParentNode(nodeTypes=None):
-        """ Return the next node up the node hierarchy. If the nodeTypes
-            parameter is given, search for the next node that has one of
-            the types in the nodeTypes list.
-
-            Return None if no suitable node can be found.
-        """
-
-    def getChildNodes(nodeTypes=None):
-        """ Return a sequence of nodes contained in this node. If the
-            nodeTypes parameter is given return only nodes of these types.
-        """
-
     def getMenu():
         """ Return the menu node this node belongs to or None if not found.
         """
@@ -501,7 +501,8 @@ class INodeAdapter(Interface):
     """
 
 
-class IViewManager(ILoopsObject, IBaseNode):
+#class IViewManager(ILoopsObject, IBaseNode):
+class IViewManager(ILoopsObject, IOrderedContainer):
     """ A manager/container for views.
     """
     contains(IView)

layout/base.py

@@ -22,9 +22,12 @@ Layout node + instance implementations.
 $Id$
 """
 
+from zope.cachedescriptors.property import Lazy
 from zope.interface import implements
 
-from cybertools.composer.layout.base import LayoutInstance
+from cybertools.composer.layout.base import Layout, LayoutInstance
+from cybertools.composer.layout.interfaces import ILayoutInstance
+from loops.layout.browser import ConceptView
 from loops.layout.interfaces import ILayoutNode, ILayoutNodeContained
 from loops.view import Node
 
@@ -34,6 +37,38 @@ class LayoutNode(Node):
     implements(ILayoutNode, ILayoutNodeContained)
 
 
+# layout instances
+
 class NodeLayoutInstance(LayoutInstance):
 
-    pass
+    def getLayouts(self, region):
+        """ Return sublayout instances.
+        """
+        if region is None:
+            return []
+        result = []
+        sublayouts = self.template.sublayouts
+        if sublayouts is not None:  # hard-coded sublayouts
+            for l in region.layouts:
+                if sublayouts is None or l.name in sublayouts:
+                    li = ILayoutInstance(self.context)
+                    li.template = l
+                    result.append(li)
+            return result
+        # sublayouts specified via subnodes
+        subnodes = self.context.values()
+        names = region.layouts.keys()
+        for n in subnodes:
+            if n.viewName in names:
+                layout = region.layouts[n.viewName]
+                li = ILayoutInstance(n)
+                li.template = layout
+                result.append(li)
+        # if not result: get layouts from parent node(s)
+        return result
+
+    @Lazy
+    def targetView(self):
+        request = self.view.request
+        return ConceptView(self.context.target, request, self.context)
+

layout/browser.py

@@ -23,8 +23,10 @@ $Id$
 """
 
 from zope.cachedescriptors.property import Lazy
+from zope.traversing.browser import absoluteURL
 
 from cybertools.composer.layout.browser.view import Page
+from loops.browser.common import BaseView
 
 
 class LayoutNodeView(Page):
@@ -32,3 +34,36 @@ class LayoutNodeView(Page):
     @Lazy
     def layoutName(self):
         return self.context.viewName or 'page'
+
+    @Lazy
+    def layoutNames(self):
+        result = []
+        n = self.context
+        while n is not None:
+            if n.viewName:
+                result.append(n.viewName)
+            n = n.getParentNode()
+        result.append('page')
+        return result
+
+
+class ConceptView(object):
+
+    def __init__(self, context, request, node=None):
+        self.context = context
+        self.request = request
+        self.node = node
+
+    @Lazy
+    def title(self):
+        return self.context.title
+
+    @Lazy
+    def url(self):
+        return absoluteURL(self.node, self.request)
+
+    @property
+    def children(self):
+        for c in self.context.getChildren():
+            yield ConceptView(c, self.request, self.node)
+

layout/configure.zcml

@@ -26,8 +26,7 @@
       name="index.html"
       for="loops.layout.interfaces.ILayoutNode"
       class="loops.layout.browser.LayoutNodeView"
-      permission="zope.View"
-      />
+      permission="zope.View" />
 
   <browser:addform
       label="Add Layout Node"
@@ -46,7 +45,6 @@
       title="Layout Node"
       description="A layout node controls the presentation of objects"
       permission="zope.ManageContent"
-      view="AddLoopsLayoutNode.html"
-      />
+      view="AddLoopsLayoutNode.html" />
 
 </configure>