    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.javascript;
    014
    015/**
    016 * A contribution to an extensible {@link JavaScriptStack}. Such a stack is created in terms of all the contributions.
    017 *
    018 * @see ExtensibleJavaScriptStack
    019 * @since 5.3
    020 */
    021public class StackExtension
    022{
    023    /**
    024     * The type of extension.
    025     */
    026    public final StackExtensionType type;
    027
    028    /**
    029     * The value contributed; will have symbols expanded, then be converted to the appropriate type.
    030     */
    031    public final String value;
    032
    033    public StackExtension(StackExtensionType type, String value)
    034    {
    035        this.type = type;
    036        this.value = value;
    037    }
    038
    039    @Override
    040    public String toString()
    041    {
    042        return String.format("StackExtension[%s %s]", type.name(), value);
    043    }
    044
    045    /**
    046     * Convenience for defining a LIBRARY.
    047     *
    048     * @since 5.4
    049     */
    050    public static StackExtension library(String path)
    051    {
    052        return new StackExtension(StackExtensionType.LIBRARY, path);
    053    }
    054
    055    /**
    056     * Convenience for defining a MODULE.
    057     *
    058     * @since 5.4
    059     */
    060    public static StackExtension module(String name)
    061    {
    062        return new StackExtension(StackExtensionType.MODULE, name);
    063    }
    064
    065    /**
    066     * Convenience for defining a STYLESHEET.
    067     *
    068     * @since 5.4
    069     */
    070    public static StackExtension stylesheet(String path)
    071    {
    072        return new StackExtension(StackExtensionType.STYLESHEET, path);
    073    }
    074
    075    /**
    076     * Convenience for defining a STACK.
    077     *
    078     * @since 5.4
    079     */
    080    public static StackExtension stack(String name)
    081    {
    082        return new StackExtension(StackExtensionType.STACK, name);
    083    }
    084
    085    /**
    086     * Convenience for defining the {@link JavaScriptStack#getJavaScriptAggregationStrategy()}.
    087     *
    088     * @since 5.4
    089     */
    090    public static StackExtension javascriptAggregation(JavaScriptAggregationStrategy strategy)
    091    {
    092        return new StackExtension(StackExtensionType.AGGREGATION_STRATEGY, strategy.name());
    093    }
    094
    095}