void
WorkerDebuggerGlobalScope::CreateSandbox(JSContext* aCx, const nsAString& aName,
JS::Handle<JSObject*> aPrototype,
JS::MutableHandle<JSObject*> aResult,
ErrorResult& aRv)
{
mWorkerPrivate->AssertIsOnWorkerThread();
aResult.set(nullptr);
JS::Rooted<JS::Value> protoVal(aCx);
protoVal.setObjectOrNull(aPrototype);
JS::Rooted<JSObject*> sandbox(aCx,
SimpleGlobalObject::Create(SimpleGlobalObject::GlobalType::WorkerDebuggerSandbox,
protoVal));
if (!sandbox) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
return;
}
if (!JS_WrapObject(aCx, &sandbox)) {
aRv.NoteJSContextException(aCx);
return;
}
aResult.set(sandbox);
}
bool
LinkConstructorAndPrototype(JSContext *cx, JSObject *ctor_, JSObject *proto_)
{
RootedObject ctor(cx, ctor_), proto(cx, proto_);
RootedValue protoVal(cx, ObjectValue(*proto));
RootedValue ctorVal(cx, ObjectValue(*ctor));
return ctor->defineProperty(cx, cx->runtime->atomState.classPrototypeAtom,
protoVal, JS_PropertyStub, JS_StrictPropertyStub,
JSPROP_PERMANENT | JSPROP_READONLY) &&
proto->defineProperty(cx, cx->runtime->atomState.constructorAtom,
ctorVal, JS_PropertyStub, JS_StrictPropertyStub, 0);
}
void CComponentManager::Script_RegisterComponentType(ScriptInterface::CxPrivate* pCxPrivate, int iid, std::string cname, CScriptVal ctor)
{
CComponentManager* componentManager = static_cast<CComponentManager*> (pCxPrivate->pCBData);
JSContext* cx = componentManager->m_ScriptInterface.GetContext();
JSAutoRequest rq(cx);
// Find the C++ component that wraps the interface
int cidWrapper = componentManager->GetScriptWrapper(iid);
if (cidWrapper == CID__Invalid)
{
componentManager->m_ScriptInterface.ReportError("Invalid interface id");
return;
}
const ComponentType& ctWrapper = componentManager->m_ComponentTypesById[cidWrapper];
bool mustReloadComponents = false; // for hotloading
ComponentTypeId cid = componentManager->LookupCID(cname);
if (cid == CID__Invalid)
{
// Allocate a new cid number
cid = componentManager->m_NextScriptComponentTypeId++;
componentManager->m_ComponentTypeIdsByName[cname] = cid;
}
else
{
// Component type is already loaded, so do hotloading:
if (!componentManager->m_CurrentlyHotloading)
{
componentManager->m_ScriptInterface.ReportError("Registering component type with already-registered name"); // TODO: report the actual name
return;
}
const ComponentType& ctPrevious = componentManager->m_ComponentTypesById[cid];
// We can only replace scripted component types, not native ones
if (ctPrevious.type != CT_Script)
{
componentManager->m_ScriptInterface.ReportError("Hotloading script component type with same name as native component");
return;
}
// We don't support changing the IID of a component type (it would require fiddling
// around with m_ComponentsByInterface and being careful to guarantee uniqueness per entity)
if (ctPrevious.iid != iid)
{
// ...though it only matters if any components exist with this type
if (!componentManager->m_ComponentsByTypeId[cid].empty())
{
componentManager->m_ScriptInterface.ReportError("Hotloading script component type mustn't change interface ID");
return;
}
}
// Remove the old component type's message subscriptions
std::map<MessageTypeId, std::vector<ComponentTypeId> >::iterator it;
for (it = componentManager->m_LocalMessageSubscriptions.begin(); it != componentManager->m_LocalMessageSubscriptions.end(); ++it)
{
std::vector<ComponentTypeId>& types = it->second;
std::vector<ComponentTypeId>::iterator ctit = find(types.begin(), types.end(), cid);
if (ctit != types.end())
types.erase(ctit);
}
for (it = componentManager->m_GlobalMessageSubscriptions.begin(); it != componentManager->m_GlobalMessageSubscriptions.end(); ++it)
{
std::vector<ComponentTypeId>& types = it->second;
std::vector<ComponentTypeId>::iterator ctit = find(types.begin(), types.end(), cid);
if (ctit != types.end())
types.erase(ctit);
}
mustReloadComponents = true;
}
std::string schema = "<empty/>";
{
CScriptValRooted prototype;
if (componentManager->m_ScriptInterface.GetProperty(ctor.get(), "prototype", prototype) &&
componentManager->m_ScriptInterface.HasProperty(prototype.get(), "Schema"))
{
componentManager->m_ScriptInterface.GetProperty(prototype.get(), "Schema", schema);
}
}
// Construct a new ComponentType, using the wrapper's alloc functions
ComponentType ct = {
CT_Script,
iid,
ctWrapper.alloc,
ctWrapper.dealloc,
cname,
schema,
CScriptValRooted(cx, ctor)
};
componentManager->m_ComponentTypesById[cid] = ct;
componentManager->m_CurrentComponent = cid; // needed by Subscribe
// Find all the ctor prototype's On* methods, and subscribe to the appropriate messages:
JS::RootedValue protoVal(cx);
if (!componentManager->m_ScriptInterface.GetPropertyJS(ctor.get(), "prototype", &protoVal))
return; // error
std::vector<std::string> methods;
JS::RootedObject proto(cx);
if (!protoVal.isObjectOrNull())
return; // error
proto = protoVal.toObjectOrNull();
if (!componentManager->m_ScriptInterface.EnumeratePropertyNamesWithPrefix(protoVal, "On", methods))
return; // error
for (std::vector<std::string>::const_iterator it = methods.begin(); it != methods.end(); ++it)
{
std::string name = (*it).substr(2); // strip the "On" prefix
// Handle "OnGlobalFoo" functions specially
bool isGlobal = false;
if (name.substr(0, 6) == "Global")
{
isGlobal = true;
name = name.substr(6);
}
std::map<std::string, MessageTypeId>::const_iterator mit = componentManager->m_MessageTypeIdsByName.find(name);
if (mit == componentManager->m_MessageTypeIdsByName.end())
{
std::string msg = "Registered component has unrecognised '" + *it + "' message handler method";
componentManager->m_ScriptInterface.ReportError(msg.c_str());
return;
}
if (isGlobal)
componentManager->SubscribeGloballyToMessageType(mit->second);
else
componentManager->SubscribeToMessageType(mit->second);
}
componentManager->m_CurrentComponent = CID__Invalid;
if (mustReloadComponents)
{
// For every script component with this cid, we need to switch its
// prototype from the old constructor's prototype property to the new one's
const std::map<entity_id_t, IComponent*>& comps = componentManager->m_ComponentsByTypeId[cid];
std::map<entity_id_t, IComponent*>::const_iterator eit = comps.begin();
for (; eit != comps.end(); ++eit)
{
JS::RootedValue instance(cx, eit->second->GetJSInstance());
if (!instance.isNull())
{
componentManager->m_ScriptInterface.SetPrototype(instance, protoVal);
}
}
}
}
