Sorry for the strange formatting, by the way. I simply copy-and-
pasted my code.
On Nov 20, 10:58 am, MonkeyMike <mikebin...@gmail.com> wrote:
> I have some JSNI that the GWT compiler doesn't like...
>
> ----------------------
> public static native void declareCustomMoveable(String
> customMoveableId, NativeCustomMoveableCallback callback) /*-{
> dojo.declare( customMoveableId, dojox.gfx.Moveable, {
> onFirstMove: function(mover){
>
> callba...@gwtgfx.client.callback.custommoveablecallback::onFirstMove
> ();
> },
> onMoving: function(mover, shift){
>
> callba...@gwtgfx.client.callback.custommoveablecallback::onMoving(
>
> Lgwtgfx/client/definition/jsni/NativeTransformDefinition;
> )(shift);
> },
> onMoved: function(mover, shift){
>
> callba...@gwtgfx.client.callback.custommoveablecallback::onMoved(
>
> Lgwtgfx/client/definition/jsni/NativeTransformDefinition;
> )(shift);
> }
> });
> }-*/;
> ----------------------
>
> Note that I am using dojo's pattern for "subclassing"
> dojox.gfx.Moveable, and overriding the methods onFirstMove, onMoving,
> and onMoved. In each of these, there is a call to the relevant method
> from NativeCustomMoveableCallback.java (which is a Java interface, by
> the way). The GWT compiler is okay with the onFirstMove
> implementation, but for both the onMoving and onMoved implementations,
> I get the following error...
>
> "Expected a valid parameter type signature in JSNI method reference"
>
> Note that I have indicated that "shift" is an instance of a
> NativeTransformDefinition, which is a subclass of JavaScriptObject in
> my library. Isn't this valid? I thought that the GWT compiler
> "trusts" the developer to indicate types of objects that come from
> JavaScript, so long as the types are subclasses of JavaScriptObject.
>
> So is it just that my syntax is somehow incorrect? I'm using GWT
> 1.7. If not, how can I refactor this to achieve a pattern which is
> acceptable to the GWT compiler?
>
> Thanks in advance! :)
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