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#ifndef CustomElementConstructorBuilder_h
#define CustomElementConstructorBuilder_h
#include "bindings/v8/ScriptValue.h"
#include "bindings/v8/V8CustomElementLifecycleCallbacks.h"
#include "core/dom/QualifiedName.h"
#include "core/dom/custom/CustomElementLifecycleCallbacks.h"
#include "wtf/Noncopyable.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefPtr.h"
#include "wtf/text/AtomicString.h"
#include <v8.h>
namespace WebCore {
class CustomElementDefinition;
class Dictionary;
class Document;
class Element;
class ExceptionState;
class QualifiedName;
class ScriptState;
class V8PerContextData;
struct WrapperTypeInfo;
// Handles the scripting-specific parts of the Custom Elements element
// registration algorithm and constructor generation algorithm. It is
// used in the implementation of those algorithms in
// Document::registerElement.
class CustomElementConstructorBuilder {
WTF_MAKE_NONCOPYABLE(CustomElementConstructorBuilder);
public:
CustomElementConstructorBuilder(NewScriptState*, const Dictionary* options);
// The builder accumulates state and may run script at specific
// points. These methods must be called in order. When one fails
// (returns false), the calls must stop.
bool isFeatureAllowed() const;
bool validateOptions(const AtomicString& type, QualifiedName& tagName, ExceptionState&);
PassRefPtr<CustomElementLifecycleCallbacks> createCallbacks();
bool createConstructor(Document*, CustomElementDefinition*, ExceptionState&);
bool didRegisterDefinition(CustomElementDefinition*) const;
// This method collects a return value for the bindings. It is
// safe to call this method even if the builder failed; it will
// return an empty value.
ScriptValue bindingsReturnValue() const;
private:
bool hasValidPrototypeChainFor(const WrapperTypeInfo*) const;
bool prototypeIsValid(const AtomicString& type, ExceptionState&) const;
v8::Handle<v8::Function> retrieveCallback(v8::Isolate*, const char* name);
RefPtr<NewScriptState> m_scriptState;
const Dictionary* m_options;
v8::Handle<v8::Object> m_prototype;
const WrapperTypeInfo* m_wrapperType;
v8::Handle<v8::Function> m_constructor;
RefPtr<V8CustomElementLifecycleCallbacks> m_callbacks;
};
}
#endif // CustomElementConstructorBuilder_h