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| 1 /* | |
| 2 * Copyright (C) 2013 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #ifndef CustomElementConstructorBuilder_h | |
| 32 #define CustomElementConstructorBuilder_h | |
| 33 | |
| 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" | |
| 42 #include <v8.h> | |
| 43 | |
| 44 namespace WebCore { | |
| 45 | |
| 46 class CustomElementDefinition; | |
| 47 class Dictionary; | |
| 48 class Document; | |
| 49 class Element; | |
| 50 class ExceptionState; | |
| 51 class QualifiedName; | |
| 52 class V8PerContextData; | |
| 53 struct WrapperTypeInfo; | |
| 54 | |
| 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); | |
| 61 public: | |
| 62 CustomElementConstructorBuilder(ScriptState*, const Dictionary* options); | |
| 63 | |
| 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. | |
| 67 | |
| 68 bool isFeatureAllowed() const; | |
| 69 bool validateOptions(const AtomicString& type, QualifiedName& tagName, Excep
tionState&); | |
| 70 PassRefPtr<CustomElementLifecycleCallbacks> createCallbacks(); | |
| 71 bool createConstructor(Document*, CustomElementDefinition*, ExceptionState&)
; | |
| 72 bool didRegisterDefinition(CustomElementDefinition*) const; | |
| 73 | |
| 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; | |
| 78 | |
| 79 private: | |
| 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); | |
| 83 | |
| 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; | |
| 90 }; | |
| 91 | |
| 92 } | |
| 93 | |
| 94 #endif // CustomElementConstructorBuilder_h | |
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