HelloWorld Example
From OpenKM Documentation
HelloWord example will add a new Widget in tab documents user interface.
Create a file called HelloWorld.gwt.xml into resources/com/openkm/extension/frontend
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module SYSTEM "http://google-web-toolkit.googlecode.com/svn/releases/2.0/distro-source/core/src/gwt-module.dtd">
<module>
<!-- Inherit the core Web Toolkit stuff -->
<inherits name='com.google.gwt.user.User'/>
<inherits name="com.google.gwt.http.HTTP"/>
</module>
Edit Customization.gwt.xml into resources/com/openkm/extension/frontend and add the new module
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module SYSTEM "http://google-web-toolkit.googlecode.com/svn/releases/2.0/distro-source/core/src/gwt-module.dtd">
<module>
<!-- Inherit the extension widgets -->
<inherits name="com.openkm.extension.frontend.HelloWorld"/>
</module>