package org.madore.damlengine;

import org.w3c.dom.*;

public final class TodoStyleOrScript extends TodoItem {

    public enum Type {
	STYLE("style", "text/css", "/* ", " */\n"),
	SCRIPT("script", "text/javascript", "// ", "\n");
	final String eltName;
	final String mimeType;
	final String preCdata;
	final String postCdata;
	Type(String eltName, String mimeType,
	     String preCdata, String postCdata) {
	    this.eltName = eltName;
	    this.mimeType = mimeType;
	    this.preCdata = preCdata;
	    this.postCdata = postCdata;
	}
    }

    final Type t;

    public TodoStyleOrScript(Type t,
			     Context ctx,
			     TodoItem caller) {
	super(ctx, caller);
	this.t = t;
    }

    @Override
    public void handle() {
	if ( ctx.gc.headNode == null )
	    throw new IllegalStateException("head node is null when doing style or script");
	Element node
	    = ctx.doc.createElementNS(DamlEngine.XHTML_NS, t.eltName);
	node.setAttributeNS(null, "type", t.mimeType);
	ctx.gc.headNode.appendChild(node);
	ctx.gc.headNode.appendChild(ctx.doc.createTextNode("\n"));
	node.appendChild(ctx.doc.createTextNode("\n"+t.preCdata));
	StringBuffer content
	    = (t==Type.SCRIPT)?ctx.gc.scriptContent:ctx.gc.styleContent;
	node.appendChild(ctx.doc.
			 createCDATASection(t.postCdata+content
					    +t.preCdata));
	node.appendChild(ctx.doc.createTextNode(t.postCdata));
    }

}