| // Copyright 2004 The Apache Software Foundation |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package org.apache.tapestry.wml; |
| |
| import org.apache.tapestry.AbstractComponent; |
| import org.apache.tapestry.ApplicationRuntimeException; |
| import org.apache.tapestry.IMarkupWriter; |
| import org.apache.tapestry.IRequestCycle; |
| import org.apache.tapestry.Tapestry; |
| |
| /** |
| * A deck contains a collection of cards. There is a variety of card types, each specifying a different mode of |
| * user interaction. |
| * |
| * @version $Id$ |
| * @author David Solis |
| * @since 3.0 |
| * |
| **/ |
| |
| public abstract class Card extends AbstractComponent |
| { |
| private static final String ATTRIBUTE_NAME = "org.apache.tapestry.wml.Card"; |
| |
| /** |
| * @see AbstractComponent#renderComponent(IMarkupWriter, IRequestCycle) |
| **/ |
| |
| protected void renderComponent(IMarkupWriter writer, IRequestCycle cycle) |
| { |
| if (cycle.getAttribute(ATTRIBUTE_NAME) != null) |
| throw new ApplicationRuntimeException( |
| Tapestry.getMessage("Card.cards-may-not-nest"), |
| this, |
| null, |
| null); |
| |
| cycle.setAttribute(ATTRIBUTE_NAME, this); |
| |
| writer.begin("card"); |
| |
| String title = getTitle(); |
| if (Tapestry.isNonBlank(title)) |
| writer.attribute("title", title); |
| |
| renderInformalParameters(writer, cycle); |
| |
| IMarkupWriter nestedWriter = writer.getNestedWriter(); |
| |
| renderBody(nestedWriter, cycle); |
| |
| nestedWriter.close(); |
| |
| writer.end(); |
| |
| cycle.removeAttribute(ATTRIBUTE_NAME); |
| } |
| |
| public abstract String getTitle(); |
| } |