On Thursday, May 12, 2016 at 11:51:11 AM UTC+2, Vassilis Virvilis wrote:
>
> Thomas thanks,
>
> Wow I did this and it works. But it is crazy. Cr is for crazy. Kudos to
> jsinterop guys though.
>
> @JsType(isNative = true, namespace = JsPackage.GLOBAL, name = "[]")
>
>
You should probably use "Array" rather than "[]"
> public interface CrJsArray<T> {
>
> public void push(T value);
>
> @JsProperty
> public int getLength();
> }
>
>
> I tried your suggestion to cast and __also works__ (eclipse complains
> about but with (JavaScriptObject) (Object) my_native_object) it works and
> it is definitely better.
>
Also, for converting from a java.util.Collection to an array, how about
simply using Collection#toArray? (and then passing the array to JS through
JsInterop)
> Questions
> 1) Is JavaScriptObject scheduled for deprecation?
>
Yes, it'll be replaced with JsInterop.
> 2) Should a native type be able to extend JavascriptObject. Because right
> now (2.8pre1) fails at run time. That would make casting a bit saner.
> Should I report it somewhere?
>
This is probably on-purpose.
> I tried to look for the reference you gave but I didn't find it. Wrong
> keywords maybe...
>
I found
this:
https://groups.google.com/d/topic/google-web-toolkit/nmBAOX4vcSo/discussion
Not exactly what I remembered, but touches similar points.
>
> On Thu, May 12, 2016 at 12:20 PM, Thomas Broyer <[email protected]>
> wrote:
>
>> That question came up already in the forum or in GWT-Contrib (try to
>> search the archive), and I seem to recall that Goktug said you could cast
>> @JsType(isNative=true) objects to/from JavaScriptObject, so you could use
>> JsArray (and JsonUtils.safeEval). I think you can also cast to/from an
>> array of @JsType(isNative=true), so if you don't need to alter the size of
>> the JS array you can then use the bracket operators on a Java array (and
>> cast from/to a JavaScriptObject).
>> This is only out of memory, please double check from the forum archives.
>>
>>
>> On Thursday, May 12, 2016 at 10:47:51 AM UTC+2, Vassilis Virvilis wrote:
>>>
>>> Hi again,
>>>
>>> I am trying to convert a jre collection or build a jsArray with a
>>> isNative=true type.
>>>
>>> Unfortunately this is not possible because JsArray requires
>>> JavascriptObject which is invcompatible (complie time error) with native
>>> classes.
>>>
>>> Any ideas?
>>>
>>> I looked on deep dive jsinterop from Ray Cromwell and it says that there
>>> is not a clean way for jsinterop1 to align collections. Ok I get that - but
>>> there must be a way even if not the nicest/cleanest one.
>>>
>>> Otherwise looks like I have to create my own @jsinteroped MyJsArray
>>> which looks wrong.
>>>
>>> --
>>> Vassilis Virvilis
>>>
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>
>
>
> --
> Vassilis Virvilis
>
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