Re: Having trouble with GWT JSNI

Hi Thomas,

Thank you very much, it is working now. I really really appreciate the help you've given me.

Andrew

On 02/06/16 15:14, Thomas Broyer wrote:

On Thursday, June 2, 2016 at 3:50:49 PM UTC+2, Andrew Ferguson wrote:

Hi Thomas,

Thank you *so* much (I'm kicking myself because it was such a simple error!).

I don't suppose you know how I could call an external JavaScript function from inside the GWT project? I cannot find any examples online that show this.

public static native boolean thatJsFunction(int param1, String param2, double param3) /*-{

  return $wnd.that_js_function(param1, param2, param3);

}-*/;

Or do you mean also loading the JS script?

BTW, you may want to start using GWT 2.8 (prefer the snapshot to the beta1, if you can) and JsInterop: https://docs.google.com/document/d/10fmlEYIHcyead_4R1S5wKGs1t2I7Fnp_PaNaa7XTEk0/edit

The equivalent of the above JSNI would be:

@JsMethod(namespace=JsPackage.GLOBAL)

static native boolean that_js_function(int param1, String param2, double param3);

The equivalent of the JSNI that exposes your function would be:

@JsMethod(namespace=JsPackage.GLOBAL)

public static int js_funct_equiv(int myNum) {

  return myNum;

}

(you'd need to pass the GWT compiler the --generateJsInteropExports flag to export your method though.

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