// Copyright 2006, 2007 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.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 Asset _stylesheetAsset;
public InjectStandardStylesheetCommand(Asset stylesheetAsset)
{
_stylesheetAsset = stylesheetAsset;
}
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;
head.elementAt(0, "link", "rel", "stylesheet", "type", "text/css", "href", _stylesheetAsset
.toClientURL());
}
}