    001    // Copyright 2009 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.internal.bindings;
    016
    017    import org.apache.tapestry5.Asset;
    018    import org.apache.tapestry5.Binding;
    019    import org.apache.tapestry5.ComponentResources;
    020    import org.apache.tapestry5.ioc.Location;
    021    import org.apache.tapestry5.services.AssetSource;
    022    import org.apache.tapestry5.services.BindingFactory;
    023
    024    /**
    025     * Specialization of {@link org.apache.tapestry5.internal.bindings.AssetBindingFactory} that is explicitly limited to
    026     * context assets.
    027     *
    028     * @since 5.1.0.0
    029     */
    030    public class ContextBindingFactory implements BindingFactory
    031    {
    032        private final AssetSource source;
    033
    034        public ContextBindingFactory(AssetSource source)
    035        {
    036            this.source = source;
    037        }
    038
    039        public Binding newBinding(String description, ComponentResources container, ComponentResources component,
    040                                  String expression, Location location)
    041        {
    042            Asset asset = source.getContextAsset(expression, container.getLocale());
    043
    044            return new AssetBinding(location, description, asset);
    045        }
    046    }