001// Licensed under the Apache License, Version 2.0 (the "License");
002// you may not use this file except in compliance with the License.
003// You may obtain a copy of the License at
004//
005//     http://www.apache.org/licenses/LICENSE-2.0
006//
007// Unless required by applicable law or agreed to in writing, software
008// distributed under the License is distributed on an "AS IS" BASIS,
009// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
010// See the License for the specific language governing permissions and
011// limitations under the License.
012
013package org.apache.tapestry5.services.compatibility;
014
015import org.apache.tapestry5.SymbolConstants;
016
017/**
018 * Defines different traits that may be enabled or disabled. This was introduced in Tapestry 5.4 to allow certain
019 * features that exist in Tapestry 5.3 to be optionally enabled for compatibility.
020 */
021public enum Trait
022{
023    /**
024     * Indicates that the Scriptaculous JavaScript libraries should be included.  Tapestry 5.3 includes options for performing
025     * some kinds of animations when certain elements were updated or removed; that is no longer present in Tapestry 5.4
026     * and Scriptaculous is not used. This trait is only used if the
027     * {@linkplain SymbolConstants#JAVASCRIPT_INFRASTRUCTURE_PROVIDER JavaScript infrastructure provider}
028     * is set to "prototype".
029     */
030    SCRIPTACULOUS,
031
032    /**
033     * Support for Tapestry 5.3 style initializers (the client-side {@code T5.initializers} namespace).
034     */
035    INITIALIZERS
036}