ok as usual I bet myself to it, here is the answer :
Basically use a ListView over a ListView!
@Override
public void renderMenu() {
IModel<MenuItemState> modelState = getState();
final MenuItemState rootState = modelState.getObject();
//Add all menu state objects as Ordered List / sub lists
//Model MenuItems per Level (layer)
List<List<MenuItemState>> menuLayers = new
ArrayList<List<MenuItemState>>();
{
MenuItemState state = rootState;
do {
menuLayers.add(state.getChildren());
state = menuHelper.getFirstFertileChild(state);
} while(state != null); //Keep going (DFS) till Menu
node bares no child
}
//Render:
final ListView<List<MenuItemState>> multiLevelMenuContainer =
new
ListView<List<MenuItemState>>("menuContainer", menuLayers) {
@Override
protected void populateItem(final
ListItem<List<MenuItemState>>
menuLayerComponent) {
//Add levels layer by layer (each layer in a
different <div> on mark-up.
Items in same layer get same styling
//TODO : Work on mark-up styling for final
render details.
menuLayerComponent.add(new
ListView<MenuItemState>("menuItems",
menuLayerComponent.getModelObject()) {
@Override
public void populateItem(final
ListItem<MenuItemState>
childMenuComponent) {
final MenuItemState
childItemState =
childMenuComponent.getModelObject();
childMenuComponent.add(new Label("name",
childItemState.getMenuItem().getName()));
childMenuComponent.add(new StaticImage("img",
new
Model(childItemState.getMenuItem().getImg())) );
childMenuComponent.add(new StaticImage("rollOverImg",
new
Model(childItemState.getMenuItem().getRollOverImg())) );
childMenuComponent.add(new Label("selected",
Boolean.toString(childItemState.isSelected())));
}
});
}
};
add(multiLevelMenuContainer);
}
Markup code looks like this:
<table wicket:id="menuContainer" border='1'>
<tr><td>
<ul wicket:id="menuItems">
<li></li>
<li> </li>
<li> </li>
<li> </li>
</ul>
</td></tr>
</table>
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