JSBool
WrapperMoved(JSContext *cx, XPCWrappedNative *innerObj,
XPCWrappedNativeScope *newScope)
{
typedef WrappedNative2WrapperMap::Link Link;
XPCJSRuntime *rt = nsXPConnect::GetRuntimeInstance();
WrappedNative2WrapperMap *map = innerObj->GetScope()->GetWrapperMap();
Link *link;
{ // Scoped lock
XPCAutoLock al(rt->GetMapLock());
link = map->FindLink(innerObj->GetFlatJSObject());
}
if (!link) {
// No link here means that there were no XOWs for this object.
return JS_TRUE;
}
JSObject *xow = link->obj;
{ // Scoped lock.
XPCAutoLock al(rt->GetMapLock());
if (!newScope->GetWrapperMap()->AddLink(innerObj->GetFlatJSObject(), link))
return JS_FALSE;
map->Remove(innerObj->GetFlatJSObject());
}
if (!xow) {
// Nothing else to do.
return JS_TRUE;
}
return JS_SetReservedSlot(cx, xow, XPC_XOW_ScopeSlot,
PRIVATE_TO_JSVAL(newScope)) &&
JS_SetParent(cx, xow, newScope->GetGlobalJSObject());
}
JSBool
WrapObject(JSContext *cx, JSObject *parent, jsval *vp, XPCWrappedNative* wn)
{
NS_ASSERTION(XPCPerThreadData::IsMainThread(cx),
"Can't do this off the main thread!");
// Our argument should be a wrapped native object, but the caller may have
// passed it in as an optimization.
JSObject *wrappedObj;
if (JSVAL_IS_PRIMITIVE(*vp) ||
!(wrappedObj = JSVAL_TO_OBJECT(*vp)) ||
wrappedObj->getClass() == &XOWClass) {
return JS_TRUE;
}
if (!wn &&
!(wn = XPCWrappedNative::GetAndMorphWrappedNativeOfJSObject(cx, wrappedObj))) {
return JS_TRUE;
}
CheckWindow(wn);
// The parent must be the inner global object for its scope.
parent = JS_GetGlobalForObject(cx, parent);
OBJ_TO_INNER_OBJECT(cx, parent);
if (!parent) {
return JS_FALSE;
}
XPCWrappedNativeWithXOW *wnxow = nsnull;
if (wn->NeedsXOW()) {
JSObject *innerWrappedObj = wrappedObj;
OBJ_TO_INNER_OBJECT(cx, innerWrappedObj);
if (!innerWrappedObj) {
return JS_FALSE;
}
if (innerWrappedObj == parent) {
wnxow = static_cast<XPCWrappedNativeWithXOW *>(wn);
JSObject *xow = wnxow->GetXOW();
if (xow) {
*vp = OBJECT_TO_JSVAL(xow);
return JS_TRUE;
}
}
}
XPCWrappedNative *parentwn =
XPCWrappedNative::GetWrappedNativeOfJSObject(cx, parent);
XPCWrappedNativeScope *parentScope;
if (NS_LIKELY(parentwn)) {
parentScope = parentwn->GetScope();
} else {
parentScope = XPCWrappedNativeScope::FindInJSObjectScope(cx, parent);
}
JSObject *outerObj = nsnull;
WrappedNative2WrapperMap *map = parentScope->GetWrapperMap();
outerObj = map->Find(wrappedObj);
if (outerObj) {
NS_ASSERTION(outerObj->getClass() == &XOWClass,
"What crazy object are we getting here?");
*vp = OBJECT_TO_JSVAL(outerObj);
if (wnxow) {
// NB: wnxow->GetXOW() must have returned false.
SetFlags(cx, outerObj, AddFlags(GetFlags(cx, outerObj), FLAG_IS_CACHED));
wnxow->SetXOW(outerObj);
}
return JS_TRUE;
}
outerObj = JS_NewObjectWithGivenProto(cx, js::Jsvalify(&XOWClass), nsnull,
parent);
if (!outerObj) {
return JS_FALSE;
}
jsval flags = INT_TO_JSVAL(wnxow ? FLAG_IS_CACHED : 0);
if (!JS_SetReservedSlot(cx, outerObj, sWrappedObjSlot, *vp) ||
!JS_SetReservedSlot(cx, outerObj, sFlagsSlot, flags) ||
!JS_SetReservedSlot(cx, outerObj, XPC_XOW_ScopeSlot,
PRIVATE_TO_JSVAL(parentScope))) {
return JS_FALSE;
}
*vp = OBJECT_TO_JSVAL(outerObj);
map->Add(wn->GetScope()->GetWrapperMap(), wrappedObj, outerObj);
if(wnxow) {
wnxow->SetXOW(outerObj);
}
return JS_TRUE;
}
JSBool
XPC_XOW_WrapObject(JSContext *cx, JSObject *parent, jsval *vp,
XPCWrappedNative* wn)
{
NS_ASSERTION(XPCPerThreadData::IsMainThread(cx),
"Can't do this off the main thread!");
// Our argument should be a wrapped native object, but the caller may have
// passed it in as an optimization.
JSObject *wrappedObj;
if (!JSVAL_IS_OBJECT(*vp) ||
!(wrappedObj = JSVAL_TO_OBJECT(*vp)) ||
STOBJ_GET_CLASS(wrappedObj) == &sXPC_XOW_JSClass.base) {
return JS_TRUE;
}
if (!wn &&
!(wn = XPCWrappedNative::GetAndMorphWrappedNativeOfJSObject(cx, wrappedObj))) {
return JS_TRUE;
}
XPCJSRuntime *rt = nsXPConnect::GetRuntimeInstance();
// The parent must be the inner global object for its scope.
parent = JS_GetGlobalForObject(cx, parent);
JSClass *clasp = STOBJ_GET_CLASS(parent);
if (clasp->flags & JSCLASS_IS_EXTENDED) {
JSExtendedClass *xclasp = reinterpret_cast<JSExtendedClass *>(clasp);
if (xclasp->innerObject) {
parent = xclasp->innerObject(cx, parent);
if (!parent) {
return JS_FALSE;
}
}
}
XPCWrappedNativeScope *parentScope =
XPCWrappedNativeScope::FindInJSObjectScope(cx, parent, nsnull, rt);
#ifdef DEBUG_mrbkap_off
printf("Wrapping object at %p (%s) [%p]\n",
(void *)wrappedObj, STOBJ_GET_CLASS(wrappedObj)->name,
(void *)parentScope);
#endif
JSObject *outerObj = nsnull;
WrappedNative2WrapperMap *map = parentScope->GetWrapperMap();
outerObj = map->Find(wrappedObj);
if (outerObj) {
NS_ASSERTION(STOBJ_GET_CLASS(outerObj) == &sXPC_XOW_JSClass.base,
"What crazy object are we getting here?");
#ifdef DEBUG_mrbkap_off
printf("But found a wrapper in the map %p!\n", (void *)outerObj);
#endif
*vp = OBJECT_TO_JSVAL(outerObj);
return JS_TRUE;
}
outerObj = JS_NewObjectWithGivenProto(cx, &sXPC_XOW_JSClass.base, nsnull,
parent);
if (!outerObj) {
return JS_FALSE;
}
if (!JS_SetReservedSlot(cx, outerObj, XPCWrapper::sWrappedObjSlot, *vp) ||
!JS_SetReservedSlot(cx, outerObj, XPCWrapper::sFlagsSlot,
JSVAL_ZERO) ||
!JS_SetReservedSlot(cx, outerObj, XPC_XOW_ScopeSlot,
PRIVATE_TO_JSVAL(parentScope))) {
return JS_FALSE;
}
*vp = OBJECT_TO_JSVAL(outerObj);
map->Add(wn->GetScope()->GetWrapperMap(), wrappedObj, outerObj);
return JS_TRUE;
}
