Re: how to call the gwt method from html <a href>

On Wednesday, July 10, 2013 6:55:18 AM UTC+2, Prabhu wrote:

    public static native void exportMyFunction(Gwtgooglechartsexample x) /*-{
       $wnd.callPopup =$entry(x.@com.sample.client.Gwtgooglechartsexample::callPopup()());
    }-*/;

This code is not doing what you thing it does: x.@…::callPopup()() calls the method, then $entry() will wrap the returned value ('undefined' in this case, as the method's return type is 'void') into a function which is finally assigned to $wnd.callPopup. (note that the function returned by $entry will throw because it'll try to call apply() on 'undefined').

You'll want to do:

$wnd.callPopup = $entry(function() {

   x.@com.sample.client.Gwtgooglechartsexample::callPopup()();

});

I.e. wrap a function that will call callPopup().

If callPopup were a static method, you could also do:

$wnd.callPopup = $entry(@com.sample.client.Gwtgooglechartsexample::callPopup());

(note the single pair of parens: we get the reference of the method, which is a JS function, and wrap it in $entry; this doesn't work for non-static method because the method reference is not bound to the object, so the 'this' would be $wnd, not 'x')

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