Deprecating old DOM event APIs.

tools/dom/scripts/htmleventgenerator.py

 #!/usr/bin/python
 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 """This module provides functionality to generate dart:html event classes."""
 
 import logging
 from generator import FindCommonAnnotations, FormatAnnotations
 
@@ skipping 522 matching lines @@
     events_class_name = html_interface_name + 'Events'
     parent_events_class_name = self._GetParentEventsClassName(interface)
 
     if not event_names:
       return parent_events_class_name
 
     template_file = 'impl_%s.darttemplate' % events_class_name
     template = (self._template_loader.TryLoad(template_file) or
         '\n'
         '@DocsEditable\n'
+        '@deprecated\n'
         'class $CLASSNAME extends $SUPER {\n'
         '  @DocsEditable\n'
         '  $CLASSNAME(EventTarget _ptr) : super(_ptr);\n'
         '$!MEMBERS}\n')
 
     # TODO(jacobr): specify the type of _ptr as EventTarget
     implementation_events_members = events_implementation_emitter.Emit(
         template,
         CLASSNAME=events_class_name,
         SUPER='%s' % parent_events_class_name)
@@ skipping 32 matching lines @@
     parent_events_class_name = 'Events'
     interfaces_with_events = set()
     for parent in self._database.Hierarchy(interface):
       if parent != interface and parent.id in self._event_classes:
         parent_name = self._renamer.RenameInterface(parent)
         parent_events_class_name = parent_name + 'Events'
         interfaces_with_events.add(parent)
     if len(interfaces_with_events) > 1:
       raise Exception('Only one parent event class allowed ' + interface.id)
     return parent_events_class_name