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| 1 /* | |
| 2 * Copyright (C) 2012 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 | |
| 6 * are met: | |
| 7 * | |
| 8 * 1. Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * 3. Neither the name of Google Inc. nor the names of its contributors | |
| 15 * may be used to endorse or promote products derived from this | |
| 16 * 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 #include "config.h" | |
| 32 #include "core/dom/CustomElementRegistry.h" | |
| 33 | |
| 34 #include "HTMLNames.h" | |
| 35 #include "SVGNames.h" | |
| 36 #include "bindings/v8/CustomElementConstructorBuilder.h" | |
| 37 #include "core/dom/CustomElement.h" | |
| 38 #include "core/dom/CustomElementDefinition.h" | |
| 39 #include "core/dom/CustomElementException.h" | |
| 40 #include "core/dom/CustomElementRegistrationContext.h" | |
| 41 #include "core/dom/DocumentLifecycleObserver.h" | |
| 42 | |
| 43 namespace WebCore { | |
| 44 | |
| 45 class RegistrationContextObserver : public DocumentLifecycleObserver { | |
| 46 public: | |
| 47 explicit RegistrationContextObserver(Document* document) | |
| 48 : DocumentLifecycleObserver(document) | |
| 49 , m_wentAway(!document) | |
| 50 { | |
| 51 } | |
| 52 | |
| 53 bool registrationContextWentAway() { return m_wentAway; } | |
| 54 | |
| 55 private: | |
| 56 virtual void documentWasDisposed() OVERRIDE { m_wentAway = true; } | |
| 57 | |
| 58 bool m_wentAway; | |
| 59 }; | |
| 60 | |
| 61 CustomElementDefinition* CustomElementRegistry::registerElement(Document* docume
nt, CustomElementConstructorBuilder* constructorBuilder, const AtomicString& use
rSuppliedName, CustomElement::NameSet validNames, ExceptionState& es) | |
| 62 { | |
| 63 // FIXME: In every instance except one it is the | |
| 64 // CustomElementConstructorBuilder that observes document | |
| 65 // destruction during registration. This responsibility should be | |
| 66 // consolidated in one place. | |
| 67 RegistrationContextObserver observer(document); | |
| 68 | |
| 69 AtomicString type = userSuppliedName.lower(); | |
| 70 | |
| 71 if (!constructorBuilder->isFeatureAllowed()) { | |
| 72 CustomElementException::throwException(CustomElementException::CannotReg
isterFromExtension, type, es); | |
| 73 return 0; | |
| 74 } | |
| 75 | |
| 76 if (!CustomElement::isValidName(type, validNames)) { | |
| 77 CustomElementException::throwException(CustomElementException::InvalidNa
me, type, es); | |
| 78 return 0; | |
| 79 } | |
| 80 | |
| 81 QualifiedName tagName = nullQName(); | |
| 82 if (!constructorBuilder->validateOptions(type, tagName, es)) | |
| 83 return 0; | |
| 84 | |
| 85 ASSERT(tagName.namespaceURI() == HTMLNames::xhtmlNamespaceURI || tagName.nam
espaceURI() == SVGNames::svgNamespaceURI); | |
| 86 | |
| 87 // FIXME: This should be done earlier in validateOptions. | |
| 88 if (m_registeredTypeNames.contains(type)) { | |
| 89 CustomElementException::throwException(CustomElementException::TypeAlrea
dyRegistered, type, es); | |
| 90 return 0; | |
| 91 } | |
| 92 | |
| 93 ASSERT(!observer.registrationContextWentAway()); | |
| 94 | |
| 95 RefPtr<CustomElementLifecycleCallbacks> lifecycleCallbacks = constructorBuil
der->createCallbacks(); | |
| 96 | |
| 97 // Consulting the constructor builder could execute script and | |
| 98 // kill the document. | |
| 99 if (observer.registrationContextWentAway()) { | |
| 100 CustomElementException::throwException(CustomElementException::ContextDe
stroyedCreatingCallbacks, type, es); | |
| 101 return 0; | |
| 102 } | |
| 103 | |
| 104 const CustomElementDescriptor descriptor(type, tagName.namespaceURI(), tagNa
me.localName()); | |
| 105 RefPtr<CustomElementDefinition> definition = CustomElementDefinition::create
(descriptor, lifecycleCallbacks); | |
| 106 | |
| 107 if (!constructorBuilder->createConstructor(document, definition.get(), es)) | |
| 108 return 0; | |
| 109 | |
| 110 m_definitions.add(descriptor, definition); | |
| 111 m_registeredTypeNames.add(descriptor.type()); | |
| 112 | |
| 113 if (!constructorBuilder->didRegisterDefinition(definition.get())) { | |
| 114 CustomElementException::throwException(CustomElementException::ContextDe
stroyedRegisteringDefinition, type, es); | |
| 115 return 0; | |
| 116 } | |
| 117 | |
| 118 return definition.get(); | |
| 119 } | |
| 120 | |
| 121 CustomElementDefinition* CustomElementRegistry::find(const CustomElementDescript
or& descriptor) const | |
| 122 { | |
| 123 return m_definitions.get(descriptor); | |
| 124 } | |
| 125 | |
| 126 } // namespace WebCore | |
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Chromium Code Reviews
Issue 25777002:
Move custom element code to core/dom/custom/ (Closed)
Base URL: svn://svn.chromium.org/blink/trunk