/*
 * © Copyright IBM Corp. 2012
 * 
 * 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 com.ibm.sbt.playground.extension;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Properties;

import com.ibm.sbt.jslibrary.SBTEnvironment;



/**
 * JavaScript preview extension for the Playground.
 * 
 * @author priand
 */
public abstract class JavaScriptPreviewExtension {
	
	public static abstract class Context {
		public abstract SBTEnvironment getEnvironment();
		public abstract Properties getProperties();
		public abstract String getJavaScriptLibrary();
		public abstract String getJavaScriptLibraryVersion();
	}

	protected JavaScriptPreviewExtension() {
	}

	//
	// Handle HTML header
	//
	public void headerStart(Context context, PrintWriter pw) throws IOException {
	}
	public void headerEnd(Context context, PrintWriter pw) throws IOException {
	}
	
	//
	// Handle HTML body
	//
	public void bodyStart(Context context, PrintWriter pw) throws IOException {
	}
	public void bodyEnd(Context context, PrintWriter pw) throws IOException {
	}
}