| // Copyright 2004, 2005 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.html; |
| |
| import org.apache.tapestry.AbstractComponent; |
| import org.apache.tapestry.IMarkupWriter; |
| import org.apache.tapestry.IRequestCycle; |
| import org.apache.tapestry.services.ResponseBuilder; |
| |
| /** |
| * The body of a Tapestry page. This is used since it allows components on the page access to an |
| * initialization script (that is written the start, just inside the <body> tag). This is |
| * currently used by {@link Rollover}and {@link Script}components. [ <a |
| * href="../../../../../ComponentReference/Body.html">Component Reference </a>] |
| * |
| * @author Howard Lewis Ship |
| */ |
| |
| public abstract class Body extends AbstractComponent |
| { |
| |
| protected void renderComponent(IMarkupWriter writer, IRequestCycle cycle) |
| { |
| IMarkupWriter nested = writer.getNestedWriter(); |
| |
| renderBody(nested, cycle); |
| |
| getRenderWorker().renderBody(cycle, this); |
| |
| // This is a little tricky, if we didn't call this manually |
| // now the page would never be able to have any javascript related |
| // render workers actually work because the javascript output would |
| // essentially be non writable |
| |
| getRenderWorker().renderComponent(cycle, getPage()); |
| |
| // Start the body tag. |
| writer.println(); |
| writer.begin(getElement()); |
| |
| renderInformalParameters(writer, cycle); |
| |
| renderIdAttribute(writer, cycle); |
| |
| writer.println(); |
| |
| // Write the page's scripting. This is included scripts |
| // and dynamic JavaScript. |
| |
| getBuilder().writeBodyScript(writer, cycle); |
| |
| // Close the nested writer, which dumps its buffered content |
| // into its parent. |
| |
| nested.close(); |
| |
| // Any initialization should go at the very end of the document |
| // just before the close body tag. Older version of Tapestry |
| // would create a window.onload event handler, but this is better |
| // (it doesn't have to wait for external images to load). |
| |
| getBuilder().writeInitializationScript(writer); |
| |
| writer.end(); // <body> |
| } |
| |
| /** |
| * Parameter. |
| */ |
| public abstract String getElement(); |
| |
| public abstract ResponseBuilder getBuilder(); |
| } |
