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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