ClientListener on Button - Programmatically

Question

Hello,
Requirement : I need to Create a command button and when you hover your mouse on it, a function has to be called . Everything has to be done programmatically.
My Procedure: I have already created a RichCommandButton programmatically with a binding to a function(HandleImagePress) which triggers when I click the button. This function inturn creates, populates and displays the necessary information in the form of a popup. However , With the new requirement, I am just supposed to hover onto my button to trigger this function (HandleImagePress). I believe I need to create ClientListener and so I tried it. But it doesnt work the way I want ... :-(
This is what I have tried:
public void handleImagePress(ActionEvent event){
// There is code to create , populate and display and popup . It works fine
private UIComponent ImageButton(UIComponent parent){
RichCommandButton img = new RichCommandButton();
String imagestyle = "width:120pt; height:120.0pt;margin:10.0pt;";
img.setInlineStyle(imagestyle);
// Compose method expression to invoke action event handler when button is pressed.
FacesContext fctx = FacesContext.getCurrentInstance();
Application application = fctx.getApplication();
ExpressionFactory elFactory = application.getExpressionFactory();
ELContext elContext = fctx.getELContext();
MethodExpression methodExpression =null;
// Make sure the EL expression references a valid managed bean method. Ensure the bean scope is properly addressed.
methodExpression = elFactory.createMethodExpression( elContext,"#{pageFlowScope.pinint.handleImagePress}",Object.class,new Class[] {ActionEvent.class});
// Create the command button action listener reference.
MethodExpressionActionListener al = null;
al= new MethodExpressionActionListener(methodExpression);
img.addActionListener(al);
// Add new command button to parent component and PPR the component for the button to show.
parent.getChildren().add(img);
ClientListenerSet set = img.getClientListeners();
*if (set == null) {*
set = new ClientListenerSet();
img.setClientListeners(set);
set.addBehavior("new AdfShowPopupBehavior('popup',AdfRichPopup.ALIGN_AFTER_END,null,'mouseOver')");
// set.addListener("mouseOver", "handleImagePress");
AdfFacesContext adfFacesContext = AdfFacesContext.getCurrentInstance();
adfFacesContext.addPartialTarget(parent);
return img;
With this code, I need to click on image atleast once to create a popup . Is it possible to call the function without clicking but by just hovering on it? (bcoz the HandleImagePress function takes care of everything regarding to popup)
Help will be greatly appreciated :-)
Thank You

Answer 1

Thank You for the reply, I have created a command button in Jdeveloper, ADF Faces component. It doesn't have "addMouseMotionListener" . So i have tried this way,
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;
I have tried adding a Mouse event instead of an Actionevent this way ..
public void handleImagePress(MouseEvent event){
int m = event.MOUSE_ENTERED;
System.out.println(m);
System.out.println("--mouse clicked");
System.out.println(event.MOUSE_CLICKED);
//code to create , display, popup
private UIComponent ImageButton(UIComponent parent){
//I have changed the following line..
methodExpression = elFactory.createMethodExpression( elContext,"#{pageFlowScope.pinint.handleImagePress}",Object.class,new Class[] {MouseEvent.class});
But it complains java.lang.IllegalArgumentException: argument type mismatch, when I click on the button.
Please let me know of a work around with this issue.