    001// Copyright 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
    015package org.apache.tapestry5.corelib.components;
    016
    017import org.apache.tapestry5.BindingConstants;
    018import org.apache.tapestry5.MarkupWriter;
    019import org.apache.tapestry5.annotations.Parameter;
    020
    021/**
    022 * Overrides the DOCTYPE of the rendered document (via {@link org.apache.tapestry5.dom.Document#dtd(String, String, String)}
    023 * which can be useful when different component templates that render to the same document disagree about what the correct DOCTYPE
    024 * is.
    025 *
    026 * @tapestrydoc
    027 * @since 5.3
    028 */
    029public class Doctype
    030{
    031    @Parameter(required = true, allowNull = false, defaultPrefix = BindingConstants.LITERAL)
    032    private String name;
    033
    034    @Parameter(defaultPrefix = BindingConstants.LITERAL)
    035    private String publicId, systemId;
    036
    037    boolean beginRender(MarkupWriter writer)
    038    {
    039        writer.getDocument().dtd(name, publicId, systemId);
    040
    041        return false;
    042    }
    043}