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31 #ifndef CustomElementConstructorBuilder_h
32 #define CustomElementConstructorBuilder_h
34 #include "bindings/v8/ScriptValue.h"
35 #include "bindings/v8/V8CustomElementLifecycleCallbacks.h"
36 #include "core/dom/QualifiedName.h"
37 #include "core/dom/custom/CustomElementLifecycleCallbacks.h"
38 #include "wtf/Noncopyable.h"
39 #include "wtf/PassRefPtr.h"
40 #include "wtf/RefPtr.h"
41 #include "wtf/text/AtomicString.h"
46 class CustomElementDefinition;
52 class V8PerContextData;
53 struct WrapperTypeInfo;
55 // Handles the scripting-specific parts of the Custom Elements element
56 // registration algorithm and constructor generation algorithm. It is
57 // used in the implementation of those algorithms in
58 // Document::registerElement.
59 class CustomElementConstructorBuilder {
60 WTF_MAKE_NONCOPYABLE(CustomElementConstructorBuilder);
62 CustomElementConstructorBuilder(ScriptState*, const Dictionary* options);
64 // The builder accumulates state and may run script at specific
65 // points. These methods must be called in order. When one fails
66 // (returns false), the calls must stop.
68 bool isFeatureAllowed() const;
69 bool validateOptions(const AtomicString& type, QualifiedName& tagName, ExceptionState&);
70 PassRefPtr<CustomElementLifecycleCallbacks> createCallbacks();
71 bool createConstructor(Document*, CustomElementDefinition*, ExceptionState&);
72 bool didRegisterDefinition(CustomElementDefinition*) const;
74 // This method collects a return value for the bindings. It is
75 // safe to call this method even if the builder failed; it will
76 // return an empty value.
77 ScriptValue bindingsReturnValue() const;
80 bool hasValidPrototypeChainFor(const WrapperTypeInfo*) const;
81 bool prototypeIsValid(const AtomicString& type, ExceptionState&) const;
82 v8::Handle<v8::Function> retrieveCallback(v8::Isolate*, const char* name);
84 RefPtr<ScriptState> m_scriptState;
85 const Dictionary* m_options;
86 v8::Handle<v8::Object> m_prototype;
87 const WrapperTypeInfo* m_wrapperType;
88 v8::Handle<v8::Function> m_constructor;
89 RefPtr<V8CustomElementLifecycleCallbacks> m_callbacks;
94 #endif // CustomElementConstructorBuilder_h