--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/views/treeview.py	Wed Nov 05 15:52:50 2008 +0100
@@ -0,0 +1,77 @@
+from logilab.mtconverter import html_escape
+
+from cubicweb.interfaces import ITree
+from cubicweb.common.selectors import interface_selector, yes_selector
+from cubicweb.common.view import EntityView
+
+class TreeView(EntityView):
+    id = 'treeview'
+    accepts = ('Any',)
+    
+    def call(self, subvid=None):
+        if subvid is None and 'subvid' in self.req.form:
+            subvid = self.req.form.pop('subvid') # consume it
+        if subvid is None:
+            subvid = 'oneline'
+        self.req.add_css('jquery.treeview.css')
+        self.req.add_js(('cubicweb.ajax.js', 'jquery.treeview.js', 'cubicweb.widgets.js'))
+        self.w(u'<ul class="treeview widget" cubicweb:loadtype="auto" cubicweb:wdgtype="TreeView">')
+        for rowidx in xrange(len(self.rset)):
+            self.wview('treeitemview', self.rset, row=rowidx, col=0, vid=subvid)
+        self.w(u'</ul>')
+
+
+class DefaultTreeViewItemView(EntityView):
+    """default treeitem view for entities which don't implement ITree
+    """
+    id = 'treeitemview'
+    accepts = ('Any',)
+    
+    def cell_call(self, row, col, vid='oneline'):
+        entity = self.entity(row, col)
+        itemview = self.view(vid, self.rset, row=row, col=col)
+        if row == len(self.rset) - 1:
+            self.w(u'<li class="last">%s</li>' % itemview)
+        else:
+            self.w(u'<li>%s</li>' % itemview)
+
+
+class TreeViewItemView(EntityView):
+    """specific treeitem view for entities which implement ITree
+    
+    (each item should be exandable if it's not a tree leaf)
+    """
+    id = 'treeitemview'
+    # XXX append yes_selector to make sure we get an higher score than
+    #     the default treeitem view
+    __selectors__ = (interface_selector, yes_selector)
+    accepts_interfaces = (ITree,)
+    
+    def cell_call(self, row, col, vid='oneline'):
+        entity = self.entity(row, col)
+        cssclasses = []
+        is_leaf = False
+        if row == len(self.rset) - 1:
+            is_leaf = True
+        if not hasattr(entity, 'is_leaf') or entity.is_leaf():
+            if is_leaf : cssclasses.append('last')
+            self.w(u'<li class="%s">' % u' '.join(cssclasses))
+        else:
+            rql = entity.children_rql() % {'x': entity.eid}
+            url = html_escape(self.build_url('json', rql=rql, vid='treeview',
+                                             pageid=self.req.pageid,
+                                             subvid=vid))
+            cssclasses.append('expandable')
+            divclasses = ['hitarea expandable-hitarea']
+            if is_leaf :
+                cssclasses.append('lastExpandable')
+                divclasses.append('lastExpandable-hitarea')
+            self.w(u'<li cubicweb:loadurl="%s" class="%s">' % (url, u' '.join(cssclasses)))
+            self.w(u'<div class="%s"> </div>' % u' '.join(divclasses))
+                
+            # add empty <ul> because jquery's treeview plugin checks for
+            # sublists presence
+            self.w(u'<ul class="placeholder"><li>place holder</li></ul>')
+        self.wview(vid, self.rset, row=row, col=col)
+        self.w(u'</li>')
+