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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 | |
| 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/CustomElementRegistrationContext.h" | |
| 33 | |
| 34 #include "HTMLNames.h" | |
| 35 #include "SVGNames.h" | |
| 36 #include "bindings/v8/ExceptionState.h" | |
| 37 #include "core/dom/CustomElement.h" | |
| 38 #include "core/dom/CustomElementCallbackScheduler.h" | |
| 39 #include "core/dom/CustomElementDefinition.h" | |
| 40 #include "core/dom/Element.h" | |
| 41 #include "core/html/HTMLElement.h" | |
| 42 #include "core/html/HTMLUnknownElement.h" | |
| 43 #include "core/svg/SVGUnknownElement.h" | |
| 44 #include "wtf/RefPtr.h" | |
| 45 | |
| 46 namespace WebCore { | |
| 47 | |
| 48 void CustomElementRegistrationContext::registerElement(Document* document, Custo
mElementConstructorBuilder* constructorBuilder, const AtomicString& type, Custom
Element::NameSet validNames, ExceptionState& es) | |
| 49 { | |
| 50 CustomElementDefinition* definition = m_registry.registerElement(document, c
onstructorBuilder, type, validNames, es); | |
| 51 | |
| 52 if (!definition) | |
| 53 return; | |
| 54 | |
| 55 // Upgrade elements that were waiting for this definition. | |
| 56 const CustomElementUpgradeCandidateMap::ElementSet& upgradeCandidates = m_ca
ndidates.takeUpgradeCandidatesFor(definition->descriptor()); | |
| 57 for (CustomElementUpgradeCandidateMap::ElementSet::const_iterator it = upgra
deCandidates.begin(); it != upgradeCandidates.end(); ++it) | |
| 58 didResolveElement(definition, *it); | |
| 59 } | |
| 60 | |
| 61 PassRefPtr<Element> CustomElementRegistrationContext::createCustomTagElement(Doc
ument& document, const QualifiedName& tagName, CreationMode mode) | |
| 62 { | |
| 63 ASSERT(CustomElement::isValidName(tagName.localName())); | |
| 64 | |
| 65 RefPtr<Element> element; | |
| 66 | |
| 67 if (HTMLNames::xhtmlNamespaceURI == tagName.namespaceURI()) { | |
| 68 element = HTMLElement::create(tagName, document); | |
| 69 } else if (SVGNames::svgNamespaceURI == tagName.namespaceURI()) { | |
| 70 element = SVGUnknownElement::create(tagName, document); | |
| 71 } else { | |
| 72 // XML elements are not custom elements, so return early. | |
| 73 return Element::create(tagName, &document); | |
| 74 } | |
| 75 | |
| 76 element->setCustomElementState(mode == CreatedByParser ? Element::WaitingFor
Parser : Element::WaitingForUpgrade); | |
| 77 resolve(element.get(), nullAtom); | |
| 78 return element.release(); | |
| 79 } | |
| 80 | |
| 81 void CustomElementRegistrationContext::didGiveTypeExtension(Element* element, co
nst AtomicString& type) | |
| 82 { | |
| 83 resolve(element, type); | |
| 84 } | |
| 85 | |
| 86 void CustomElementRegistrationContext::resolve(Element* element, const AtomicStr
ing& typeExtension) | |
| 87 { | |
| 88 // If an element has a custom tag name it takes precedence over | |
| 89 // the "is" attribute (if any). | |
| 90 const AtomicString& type = CustomElement::isValidName(element->localName()) | |
| 91 ? element->localName() | |
| 92 : typeExtension; | |
| 93 ASSERT(!type.isNull()); | |
| 94 | |
| 95 CustomElementDescriptor descriptor(type, element->namespaceURI(), element->l
ocalName()); | |
| 96 CustomElementDefinition* definition = m_registry.find(descriptor); | |
| 97 if (definition) | |
| 98 didResolveElement(definition, element); | |
| 99 else | |
| 100 didCreateUnresolvedElement(descriptor, element); | |
| 101 } | |
| 102 | |
| 103 void CustomElementRegistrationContext::didResolveElement(CustomElementDefinition
* definition, Element* element) | |
| 104 { | |
| 105 CustomElement::define(element, definition); | |
| 106 } | |
| 107 | |
| 108 void CustomElementRegistrationContext::didCreateUnresolvedElement(const CustomEl
ementDescriptor& descriptor, Element* element) | |
| 109 { | |
| 110 ASSERT(element->customElementState() == Element::WaitingForParser || element
->customElementState() == Element::WaitingForUpgrade); | |
| 111 m_candidates.add(descriptor, element); | |
| 112 } | |
| 113 | |
| 114 PassRefPtr<CustomElementRegistrationContext> CustomElementRegistrationContext::c
reate() | |
| 115 { | |
| 116 return adoptRef(new CustomElementRegistrationContext()); | |
| 117 } | |
| 118 | |
| 119 void CustomElementRegistrationContext::setIsAttributeAndTypeExtension(Element* e
lement, const AtomicString& type) | |
| 120 { | |
| 121 ASSERT(element); | |
| 122 ASSERT(!type.isEmpty()); | |
| 123 element->setAttribute(HTMLNames::isAttr, type); | |
| 124 setTypeExtension(element, type); | |
| 125 } | |
| 126 | |
| 127 void CustomElementRegistrationContext::setTypeExtension(Element* element, const
AtomicString& type, CreationMode mode) | |
| 128 { | |
| 129 if (!element->isHTMLElement() && !element->isSVGElement()) | |
| 130 return; | |
| 131 | |
| 132 if (element->isCustomElement()) { | |
| 133 // This can happen if: | |
| 134 // 1. The element has a custom tag, which takes precedence over | |
| 135 // type extensions. | |
| 136 // 2. Undoing a command (eg ReplaceNodeWithSpan) recycles an | |
| 137 // element but tries to overwrite its attribute list. | |
| 138 return; | |
| 139 } | |
| 140 | |
| 141 // Custom tags take precedence over type extensions | |
| 142 ASSERT(!CustomElement::isValidName(element->localName())); | |
| 143 | |
| 144 element->setCustomElementState(mode == CreatedByParser ? Element::WaitingFor
Parser : Element::WaitingForUpgrade); | |
| 145 | |
| 146 if (CustomElementRegistrationContext* context = element->document().registra
tionContext()) | |
| 147 context->didGiveTypeExtension(element, type); | |
| 148 } | |
| 149 | |
| 150 } // 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