Hey everyone,
I want to integrate MooFlow external lib in my Gwt Application, so I
begin by reading the essentials of JSNI and doing my things.
So far it's OK, I create the Impl class to wrap the functions I need,
I create also the JSObject and finally the widget itself (called
CoverFlow).
Now all I need is to add the possibility to catch the onClickView
Event in my widget (java widget).
With the implementation below, I can't see the HEY message when I
click on an image, it sounds like the line:
cfo.addEvent('onClickView', ...
don't work in my Impl class !!!
this is my Impl class
public class CoverFlowImpl {
public native CoverFlowScriptObject create(Element container, int
startIndex, boolean useSlider) /*-{
var options = {
useSlider: useSlider,
useAutoPlay: false,
useCaption: false,
useResize: false,
useWindowResize: false,
useMouseWheel: true,
useKeyInput: true,
startIndex: startIndex
};
var mf = new $wnd.MooFlow(container, options);
return mf;
}-*/;
public native void loadJSON(CoverFlowScriptObject cfo, String json) /
*-{
cfo.loadJSONArray(json);
}-*/;
public native void addClickViewHandler(CoverFlowScriptObject cfo,
HasSelectedItemChanged handler) /*-{
cfo.addEvent('onClickView', function(obj){
alert('HEY'); //just to indicate if the
event is fired
var event =
@com.audaxis.gwt.ui.coverflow.client.SelectedItemChangedEvent::new()
();
[email protected]::fireEvent(Lcom/
google/gwt/event/shared/GwtEvent;)(event);
};
}-*/;
}
The Opaque JS Object
public final class CoverFlowScriptObject extends JavaScriptObject{
private final static CoverFlowImpl impl = new CoverFlowImpl();
protected CoverFlowScriptObject() {}
public static CoverFlowScriptObject createCoverFlow(Element
container, int startIndex, boolean useSlider){
return impl.create(container, startIndex, useSlider);
}
public void laodJSON(String json){
impl.loadJSON(this, json);
}
public void addClickViewEvent(HasSelectedItemChanged handler){
impl.addClickViewHandler(this, handler);
}
}
My Widget
public class CoverFlow extends Composite implements
HasSelectedItemChanged{
private Panel simplePanel;
private CoverFlowScriptObject cvo;
private Collection<CoverFlowItem> items;
public CoverFlow() {
init(null);
}
protected void init(Panel parent){
simplePanel = parent != null ? parent : new SimplePanel();
cvo = getCoverFlowJSObject();
initWidget(simplePanel);
}
@Override
public HandlerRegistration
addSelectedItemChanged(SelectedItemChangedHandler handler) {
cvo.addClickViewEvent(this);
return addHandler(handler, SelectedItemChangedEvent.getType());
}
}
And finally -----------HasSelectedItemChanged
public interface HasSelectedItemChanged extends HasHandlers{
HandlerRegistration addSelectedItemChanged(SelectedItemChangedHandler
handler);
}
Is my implementation correcte ?
Is this the right implementation to fire events from JavaScript to
Java ?
Could anyone help me please !!
Thanks in advance
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