| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CustomElementDefinition_h |
| #define CustomElementDefinition_h |
| |
| #include "bindings/core/v8/ScriptValue.h" |
| #include "core/CoreExport.h" |
| #include "core/dom/custom/CustomElementDescriptor.h" |
| #include "platform/heap/Handle.h" |
| #include "wtf/Noncopyable.h" |
| |
| namespace blink { |
| |
| class Element; |
| class ExceptionState; |
| class HTMLElement; |
| class QualifiedName; |
| |
| class CORE_EXPORT CustomElementDefinition |
| : public GarbageCollectedFinalized<CustomElementDefinition> { |
| WTF_MAKE_NONCOPYABLE(CustomElementDefinition); |
| public: |
| CustomElementDefinition(const CustomElementDescriptor&); |
| virtual ~CustomElementDefinition(); |
| |
| DECLARE_VIRTUAL_TRACE(); |
| |
| const CustomElementDescriptor& descriptor() { return m_descriptor; } |
| |
| // TODO(yosin): To support Web Modules, introduce an abstract |
| // class |CustomElementConstructor| to allow us to have JavaScript |
| // and C++ constructors and ask the binding layer to convert |
| // |CustomElementConstructor| to |ScriptValue|. Replace |
| // |getConstructorForScript()| by |getConstructor() -> |
| // CustomElementConstructor|. |
| virtual ScriptValue getConstructorForScript() = 0; |
| |
| using ConstructionStack = HeapVector<Member<Element>, 1>; |
| ConstructionStack& constructionStack() |
| { |
| return m_constructionStack; |
| } |
| |
| virtual HTMLElement* createElementSync(Document&, const QualifiedName&) = 0; |
| virtual HTMLElement* createElementSync(Document&, const QualifiedName&, ExceptionState&) = 0; |
| HTMLElement* createElementAsync(Document&, const QualifiedName&); |
| |
| void upgrade(Element*); |
| |
| // TODO(kojii): Change these methods to pure when script-side is implemented. |
| virtual bool hasConnectedCallback() const { return true; } |
| virtual bool hasDisconnectedCallback() const { return true; } |
| virtual bool hasAttributeChangedCallback(const QualifiedName&) const { return true; } |
| |
| virtual void runConnectedCallback(Element*) {} |
| virtual void runDisconnectedCallback(Element*) {} |
| virtual void runAttributeChangedCallback(Element*, const QualifiedName&, |
| const AtomicString& oldValue, const AtomicString& newValue) {} |
| |
| void enqueueUpgradeReaction(Element*); |
| void enqueueConnectedCallback(Element*); |
| void enqueueDisconnectedCallback(Element*); |
| void enqueueAttributeChangedCallback(Element*, const QualifiedName&, |
| const AtomicString& oldValue, const AtomicString& newValue); |
| |
| protected: |
| virtual bool runConstructor(Element*) = 0; |
| |
| static void checkConstructorResult(Element*, Document&, const QualifiedName&, ExceptionState&); |
| |
| private: |
| const CustomElementDescriptor m_descriptor; |
| ConstructionStack m_constructionStack; |
| }; |
| |
| } // namespace blink |
| |
| #endif // CustomElementDefinition_h |