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HM_Arrays.jsThe HierMenus JavaScript file HM_Loader.js has default parameters that
set up the look and feel of the menu. This file internally loads HM_Arrays.js
and the Netscape and IE specific JavaScript files needed to drive the menu. To replace
the HM_Arrays.js, you have to follow these steps:
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Your final directory structure should look like this
{webapp_directory}\menu-app\menu.jsp
{webapp_directory}\menu-app\js\HM_Loader.js
{webapp_directory}\menu-app\js\ HM_ScriptNS4.js
{webapp_directory}\menu-app\js\ HM_ScriptIE4.js
{webapp_directory}\menu-app\js\ HM_ScriptDOM.js
{webapp_directory}\menu-app\WEB-INF\classes\HMContentTree.class
{webapp_directory}\menu-app\WEB-INF\classes\ HMContentTreeRoot.class
{webapp_directory}\menu-app\WEB-INF\classes\ HMContentTreeItem.class
{webapp_directory}\menu-app\WEB-INF\classes\ MenuContentBuilder.classIf you are using tomcat, webapp_directory is tomcat’s webapps directory,
and menu-app is the Web application directory containing JSP, HTML,
JavaScript and class files.
Below is the listing for a menu JSP that adds the dynamic generation of the menu contents
and substitutes the static HM_Arrays.js.
<%@ page language="java" buffer="32kb"%>
<%
//MenuContentBuilder is the java class that builds the menu tree content
HMContentTree menuContentTree = MenuContentBuilder.getTree(“Paulo”);
String menuContent = menuContentTree. toHMContent();
%>
<html>
<head>
<script language="javascript">
<% out.write(menuContent); %>
</script>
<SCRIPT LANGUAGE="JavaScript" TYPE="text/javascript">
<!--
if(window.event + "" == "undefined") event = null;
function HM_f_PopUp(){return false;};
function HM_f_PopDown(){return false};
popUp = HM_f_PopUp;
popDown = HM_f_PopDown;
HM_a_TreesToBuild = [1];
//-->
</SCRIPT>
<SCRIPT LANGUAGE="JavaScript1.2" SRC="js/HM_Loader.js" TYPE='text/javascript'></SCRIPT>
</head>
<body>
<a href="#"
onClick="return false;"
onMouseOver = "popUp('HM_Menu1',event)"
onMouseOut = "popDown('HM_Menu1')"><b>Please bring your mouse over here</b></a>>
<IMG src="tri.gif" width=7>
</body>
</html>In the listed JSP code, the generation of the menu contents in the proper format happens in two places:
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This article provides you with listings for HMContentTree,
HMContentTreeRoot, HMContentTreeItem and a sample
MenuContentBuilder class. It also presents menu.jsp, which
brings the content dynamism obtained through these Java classes into the existing
HierMenus JavaScript files.
Paulo Caroli, www.caroli.org, MSc in Software Engineer, is a Senior Java Developer with more than 8 years of experience in Application Development. He is an expert in Object Oriented techniques and has been using J2EE in Web Applications for the past 4 years. He currently works for OmniPros (www.omnipros.com).
Srimant Misra is a Senior Consultant with 6 years of experience in Information Technology. He's an expert in OOAD and performance monitoring of J2EE applications. He currently works for eTouch Systems (www.etouch.net).
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Created: November 13, 2002
Revised: November 13, 2002
URL: http://webreference.com/programming/java/jspmenus/4.html
