V8WebKitMutationObserverCustom.cpp [plain text]
#include "config.h"
#if ENABLE(MUTATION_OBSERVERS)
#include "V8WebKitMutationObserver.h"
#include "Dictionary.h"
#include "ExceptionCode.h"
#include "V8Binding.h"
#include "V8BindingMacros.h"
#include "V8DOMWrapper.h"
#include "V8MutationCallback.h"
#include "V8Node.h"
#include "V8Proxy.h"
#include "V8Utilities.h"
#include "WebKitMutationObserver.h"
#include <wtf/HashSet.h>
#include <wtf/text/AtomicString.h>
namespace WebCore {
v8::Handle<v8::Value> V8WebKitMutationObserver::constructorCallback(const v8::Arguments& args)
{
INC_STATS("DOM.WebKitMutationObserver.Constructor");
if (!args.IsConstructCall())
return throwError("DOM object constructor cannot be called as a function.", V8Proxy::TypeError);
if (ConstructorMode::current() == ConstructorMode::WrapExistingObject)
return args.Holder();
if (args.Length() < 1)
return V8Proxy::throwNotEnoughArgumentsError();
v8::Local<v8::Value> arg = args[0];
if (!arg->IsObject())
return throwError(TYPE_MISMATCH_ERR);
ScriptExecutionContext* context = getScriptExecutionContext();
if (!context)
return throwError("WebKitMutationObserver constructor's associated frame unavailable", V8Proxy::ReferenceError);
RefPtr<MutationCallback> callback = V8MutationCallback::create(arg, context);
RefPtr<WebKitMutationObserver> observer = WebKitMutationObserver::create(callback.release());
V8DOMWrapper::setDOMWrapper(args.Holder(), &info, observer.get());
V8DOMWrapper::setJSWrapperForDOMObject(observer.release(), v8::Persistent<v8::Object>::New(args.Holder()));
return args.Holder();
}
v8::Handle<v8::Value> V8WebKitMutationObserver::observeCallback(const v8::Arguments& args)
{
INC_STATS("DOM.WebKitMutationObserver.observe");
if (args.Length() < 2)
return V8Proxy::throwNotEnoughArgumentsError();
WebKitMutationObserver* imp = V8WebKitMutationObserver::toNative(args.Holder());
EXCEPTION_BLOCK(Node*, target, V8Node::HasInstance(args[0]) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[0])) : 0);
if (!args[1]->IsObject())
return throwError(TYPE_MISMATCH_ERR);
Dictionary optionsObject(args[1]);
unsigned options = 0;
HashSet<AtomicString> attributeFilter;
bool option;
if (optionsObject.get("childList", option) && option)
options |= WebKitMutationObserver::ChildList;
if (optionsObject.get("attributes", option) && option)
options |= WebKitMutationObserver::Attributes;
if (optionsObject.get("attributeFilter", attributeFilter))
options |= WebKitMutationObserver::AttributeFilter;
if (optionsObject.get("characterData", option) && option)
options |= WebKitMutationObserver::CharacterData;
if (optionsObject.get("subtree", option) && option)
options |= WebKitMutationObserver::Subtree;
if (optionsObject.get("attributeOldValue", option) && option)
options |= WebKitMutationObserver::AttributeOldValue;
if (optionsObject.get("characterDataOldValue", option) && option)
options |= WebKitMutationObserver::CharacterDataOldValue;
ExceptionCode ec = 0;
imp->observe(target, options, attributeFilter, ec);
if (ec)
V8Proxy::setDOMException(ec, args.GetIsolate());
return v8::Handle<v8::Value>();
}
}
#endif // ENABLE(MUTATION_OBSERVERS)