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32 #include "V8MutationObserver.h"
34 #include "bindings/v8/ExceptionMessages.h"
35 #include "bindings/v8/ExceptionState.h"
36 #include "bindings/v8/V8Binding.h"
37 #include "bindings/v8/V8DOMWrapper.h"
38 #include "bindings/v8/V8GCController.h"
39 #include "bindings/v8/V8MutationCallback.h"
40 #include "bindings/v8/V8Utilities.h"
41 #include "core/dom/MutationObserver.h"
45 void V8MutationObserver::constructorCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
47 ExceptionState exceptionState(ExceptionState::ConstructionContext, "MutationObserver", info.Holder(), info.GetIsolate());
48 if (info.Length() < 1) {
49 exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
50 exceptionState.throwIfNeeded();
54 v8::Local<v8::Value> arg = info[0];
55 if (!arg->IsFunction()) {
56 exceptionState.throwTypeError("Callback argument must be a function");
57 exceptionState.throwIfNeeded();
61 ExecutionContext* context = getExecutionContext();
62 v8::Handle<v8::Object> wrapper = info.Holder();
64 OwnPtr<MutationCallback> callback = V8MutationCallback::create(v8::Handle<v8::Function>::Cast(arg), context, wrapper, info.GetIsolate());
65 RefPtr<MutationObserver> observer = MutationObserver::create(callback.release());
67 V8DOMWrapper::associateObjectWithWrapper<V8MutationObserver>(observer.release(), &wrapperTypeInfo, wrapper, info.GetIsolate(), WrapperConfiguration::Dependent);
68 info.GetReturnValue().Set(wrapper);
71 void V8MutationObserver::visitDOMWrapper(void* object, const v8::Persistent<v8::Object>& wrapper, v8::Isolate* isolate)
73 MutationObserver* observer = static_cast<MutationObserver*>(object);
74 HashSet<Node*> observedNodes = observer->getObservedNodes();
75 for (HashSet<Node*>::iterator it = observedNodes.begin(); it != observedNodes.end(); ++it) {
76 v8::UniqueId id(reinterpret_cast<intptr_t>(V8GCController::opaqueRootForGC(*it, isolate)));
77 isolate->SetReferenceFromGroup(id, wrapper);
81 } // namespace WebCore