// Copyright 2006 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.internal.services;
import org.apache.tapestry.Asset;
import org.apache.tapestry.dom.Document;
import org.apache.tapestry.dom.Element;
import org.apache.tapestry.ioc.services.ThreadLocale;
import org.apache.tapestry.services.AssetSource;
import org.apache.tapestry.services.Environment;
import org.apache.tapestry.services.PageRenderCommand;
/**
* Checks to see if the output document has a <html>/<head> element and, if so, adds the
* default Tapestry stylesheet to the start.
*/
public class InjectStandardStylesheetCommand implements PageRenderCommand
{
private final ThreadLocale _threadLocale;
private final AssetSource _assetSource;
public InjectStandardStylesheetCommand(ThreadLocale threadLocale,
AssetSource classpathAssetSource)
{
_threadLocale = threadLocale;
_assetSource = classpathAssetSource;
}
public void setup(Environment environment)
{
}
public void cleanup(Environment environment)
{
Document document = environment.peek(Document.class);
Element head = document.find("html/head");
if (head == null)
return;
Asset asset = _assetSource.getClasspathAsset(
"org/apache/tapestry/default.css",
_threadLocale.getLocale());
head.elementAt(0, "link", "rel", "stylesheet", "type", "text/css", "href", asset
.toClientURL());
}
}