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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