Subj : about defining object...
To   : netscape.public.mozilla.jseng
From : celleris@naver.com (Youngsun Jeong)
Date : Tue Sep 30 2003 05:44 am

Hello, I want to use "plusAge" (that is custom js function) in
following script. please see the following script in svg file..

<?xml version="1.0"?>
<svg width="120" height="149" onload="Testfunc(45)">
<script type="text/ecmascript">

    function Testfunc(age)
    {
        var myage = age.plusAge(-30); 
        //Question! : How is "age" value passed to "plusAge()" ?
        var momage = myage.plusAge(5);
        var sumage = myage + momage;
        return sumage;
    }
</script>

First, I defined JSClass "myobject" . See below;
JSClass my_class = {
    "myobject",
    0,
    JS_PropertyStub,  JS_PropertyStub,  JS_PropertyStub, 
JS_PropertyStub,
    JS_EnumerateStub, JS_ResolveStub,   JS_ConvertStub,  
JS_FinalizeStub,
    JSCLASS_NO_OPTIONAL_MEMBERS
};

Next, I add JSFunction "my_plusAge()" to my_class. 
"my_plusAge()" is ;

static JSBool
my_plusAge(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
    jsval jsval_age = OBJ_GET_SLOT(cx, obj, JSSLOT_PRIVATE);
    int age = JSVAL_TO_INT(jsval_age);
    int added = JSVAL_TO_INT(argv[0]);
    int sum = age + added;

    *rval = INT_TO_JSVAL(sum);

    return JS_TRUE;

}
 
But.."my_plusAge" is not working. I want to know how do make the
relation between "age" and "plusAge()". And how "myobject" is defined?
Please help me!

.