    001    // Copyright 2010 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.services.javascript;
    016
    017    import java.util.List;
    018
    019    import org.apache.tapestry5.SymbolConstants;
    020    import org.apache.tapestry5.services.javascript.JavaScriptStack;
    021    import org.apache.tapestry5.services.javascript.JavaScriptStackSource;
    022    import org.apache.tapestry5.services.javascript.JavaScriptSupport;
    023
    024    /**
    025     * Used to generate a list of asset URL paths for the JavaScript libraries
    026     * of a JavaScript stack. This encapsulates much of the logic of {@linkplain SymbolConstants#COMBINE_SCRIPTS script
    027     * aggregation}.
    028     *
    029     * @since 5.2.0
    030     * @see JavaScriptStack
    031     * @see JavaScriptStackSource
    032     * @see JavaScriptSupport
    033     */
    034    public interface JavaScriptStackPathConstructor
    035    {
    036        /**
    037         * Given a stack, by name, return a list of URL paths for the individual libraqries in the stack.
    038         * If scripts are combined, this will be a single (combined) URL.
    039         *
    040         * @param stackName
    041         *            name of {@link JavaScriptStack}
    042         */
    043        List<String> constructPathsForJavaScriptStack(String stackName);
    044    }