Thanks for your comments.
It looks like I was too busy with my question because now I have a problem
how to make JS-engine invoke method IXPCScriptable::Construct().
Actually I have helper class
class nsIntArraySH : public nsDOMClassInfo
with public method
NS_IMETHODIMP
Construct(nsIXPConnectWrappedNative *wrapper, JSContext *cx,
JSObject *obj, PRUint32 argc, jsval *argv,
jsval *vp, PRBool *_retval)
The question is what is the right way to register this one?
Thanks
"John Bandhauer" <[EMAIL PROTECTED]> ???????/???????? ? ????????
?????????: news:[EMAIL PROTECTED]
> DEIV wrote:
>> there are some difficulties with using IXPCScriptable::Construct()...
>> I have a XPCOM class with constructor with one parameter. I would like
>> to write in my java scpirt something like this
>> var obj = new MyXPCOM(122);
>>
>> how I should implement this function to provide this functionality?
>>
>> NS_IMETHOD Construct(nsIXPConnectWrappedNative *wrapper, JSContext *
>> cx, JSObject * obj, PRUint32 argc, jsval * argv, jsval * vp, PRBool
>> *_retval)
>> {
>> ???
>>
>> return NS_OK;
>> }
>>
>
> Did you figure out how to do this?
>
> There are a few instances of this that can be found in the mozilla tree
> using lxr.mozilla.org.
>
> You might look at:
> http://lxr.mozilla.org/seamonkey/source/js/src/xpconnect/src/xpccomponents.cpp#1207
>
> This is nsXPCComponents_Exception::Construct. It is part of the internals
> of xpconnect. So, it has some aspects that would not make sense for other
> components. But, it is something to look at.
>
> Basically, you: convert your JS argument(s). create your C++ object with
> whatever constructor or init method you need to call, use xpconnect to
> create a wrapper, get the JSObject* of the wrapper, return the JSObject*.
>
> That code I referenced has things you would not want...
>
> The " XPCCallContext" is an xpconnect internal thing. you would not need
> it.
>
> You wouldn't need the nsIXPCSecurityManager either.
>
> You can get a pointer to the nsIXPConnect object used for making the new
> wrapper from the 'XPConnect' attribute on the wrapper passed into the
> constructor.
>
> As I said, there are other examples you might look at. I believe the DOM
> code uses IXPCScriptable::Construct too.
>
> John.
>
>> Thanks
>>
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