    001    // Copyright 2006, 2007, 2011 The Apache Software Foundation
    002    //
    003    // Licensed under the Apache License, Version 2.0 (the "License");
    004    // you may not use this file except in compliance with the License.
    005    // You may obtain a copy of the License at
    006    //
    007    // http://www.apache.org/licenses/LICENSE-2.0
    008    //
    009    // Unless required by applicable law or agreed to in writing, software
    010    // distributed under the License is distributed on an "AS IS" BASIS,
    011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    012    // See the License for the specific language governing permissions and
    013    // limitations under the License.
    014
    015    package org.apache.tapestry5.corelib.mixins;
    016
    017    import org.apache.tapestry5.Field;
    018    import org.apache.tapestry5.MarkupWriter;
    019    import org.apache.tapestry5.annotations.InjectContainer;
    020    import org.apache.tapestry5.annotations.MixinAfter;
    021
    022    /**
    023     * Renders an "disabled" attribute if the containing component {@link Field#isDisabled() is disabled}.
    024     *
    025     * @tapestrydoc
    026     */
    027    @MixinAfter
    028    public class RenderDisabled
    029    {
    030        @InjectContainer
    031        private Field field;
    032
    033        void beginRender(MarkupWriter writer)
    034        {
    035            if (field.isDisabled())
    036                writer.attributes("disabled", "disabled");
    037        }
    038    }