001    // Copyright 2004, 2005 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.tapestry.components;
016    
017    import org.apache.tapestry.AbstractComponent;
018    import org.apache.tapestry.IMarkupWriter;
019    import org.apache.tapestry.IRequestCycle;
020    
021    /**
022     * A component that can substitute for any HTML element. [<a
023     * href="../../../../../ComponentReference/Any.html">Component Reference</a>]
024     */
025    
026    public abstract class Any extends AbstractComponent
027    {
028        protected void renderComponent(IMarkupWriter writer, IRequestCycle cycle)
029        {
030            String element = isParameterBound("element") ? getElement() : getTemplateTagName();
031    
032            boolean rewinding = cycle.isRewinding();
033    
034            if (!rewinding)
035            {
036                writer.begin(element);
037    
038                renderInformalParameters(writer, cycle);
039    
040                if (getId() != null && !isParameterBound("id"))
041                    renderIdAttribute(writer, cycle);
042            }
043    
044            renderBody(writer, cycle);
045    
046            if (!rewinding)
047            {
048                writer.end();
049            }
050        }
051    
052        public abstract String getElement();
053    }