Boris Zbarsky wrote:
Oh. Hmm.
You could try creating a small nsISupports implementation whose
classinfo implements nsIXPCScriptable and has a PostCreate hook that
puts the jobject into the prototype chain...
That's the only thing I can think of offhand. Or you could do the same
and have a getProperty hook that just reports the jobject's JSObject.
Either way, you can't really do this through XPConnect, unfortunately.
-Boris
What I am eventually trying to do is get the applet jobject of an <applet> tag
- nsHTMLAppletElement.
What I understand: I can simply get this class to implement the interface of
nsIXPCScriptable. The only method that I actually need to write is this:
PRBool getProperty ( nsIXPConnectWrappedNative wrapper , JSContextPtr* cx ,
JSObjectPtr* obj , JSVal id , JSValPtr* vp )
The documentation is practically nonexistent so i think wrapper is the wrapped
nsHTMLAppletElement - the class I am a part of. cx is the JSContext. obj is
another pointer to our class. id is the property that we are looking for, as a
string. While vp is where I return a jsval.
Under that assumption: I check id to see if it equals "getApplet" or similar.
If not I return NS_OK. If so I get the jobject, wrap it with liveconnect, convert it to
jsval and store it in vp. I then return NS_SUCCESS_I_DID_SOMETHING.
For all the other methods that come with the interface I return
NS_ERROR_NOT_IMPLEMENTED and let xpconnect handle it - functioning just like it
did before.
Am I right in saying this?
Why can't they simply create a new class/interface that simply lets you stick a
JSObject into javascript. Why all this pain?? Would it be possible to make such
a class so people don't stumble upon the same problem?
For people who want to implement nsIXPCScriptable, you might want to look at
this:
Info: http://www.mozilla.org/scriptable/scriptable-proposal.html
Example:
http://lxr.mozilla.org/mozilla1.8/source/calendar/base/src/calDateTime.cpp#720
The Interface:
http://www.xulplanet.com/references/xpcomref/ifaces/nsIXPCScriptable.html
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