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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "core/dom/custom/CustomElement.h" | 5 #include "core/dom/custom/CustomElement.h" |
6 | 6 |
7 #include "core/dom/Document.h" | 7 #include "core/dom/Document.h" |
8 #include "core/dom/QualifiedName.h" | 8 #include "core/dom/QualifiedName.h" |
9 #include "core/dom/custom/CEReactionsScope.h" | 9 #include "core/dom/custom/CEReactionsScope.h" |
| 10 #include "core/dom/custom/CustomElementDefinition.h" |
10 #include "core/dom/custom/CustomElementUpgradeReaction.h" | 11 #include "core/dom/custom/CustomElementUpgradeReaction.h" |
| 12 #include "core/dom/custom/CustomElementsRegistry.h" |
11 #include "core/dom/custom/V0CustomElement.h" | 13 #include "core/dom/custom/V0CustomElement.h" |
12 #include "core/dom/custom/V0CustomElementRegistrationContext.h" | 14 #include "core/dom/custom/V0CustomElementRegistrationContext.h" |
13 #include "core/frame/LocalDOMWindow.h" | 15 #include "core/frame/LocalDOMWindow.h" |
14 #include "core/html/HTMLElement.h" | 16 #include "core/html/HTMLElement.h" |
15 #include "platform/text/Character.h" | 17 #include "platform/text/Character.h" |
16 #include "wtf/text/AtomicStringHash.h" | 18 #include "wtf/text/AtomicStringHash.h" |
17 | 19 |
18 namespace blink { | 20 namespace blink { |
19 | 21 |
20 CustomElementsRegistry* CustomElement::registry(const Element& element) | 22 CustomElementsRegistry* CustomElement::registry(const Element& element) |
21 { | 23 { |
22 if (LocalDOMWindow* window = element.document().domWindow()) | 24 return registry(element.document()); |
| 25 } |
| 26 |
| 27 CustomElementsRegistry* CustomElement::registry(const Document& document) |
| 28 { |
| 29 if (LocalDOMWindow* window = document.domWindow()) |
23 return window->customElements(); | 30 return window->customElements(); |
24 return nullptr; | 31 return nullptr; |
25 } | 32 } |
26 | 33 |
27 bool CustomElement::isValidName(const AtomicString& name) | 34 bool CustomElement::isValidName(const AtomicString& name) |
28 { | 35 { |
29 if (!name.length() || name[0] < 'a' || name[0] > 'z') | 36 if (!name.length() || name[0] < 'a' || name[0] > 'z') |
30 return false; | 37 return false; |
31 | 38 |
32 bool hasHyphens = false; | 39 bool hasHyphens = false; |
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68 | 75 |
69 bool CustomElement::shouldCreateCustomElement(Document& document, const Qualifie
dName& tagName) | 76 bool CustomElement::shouldCreateCustomElement(Document& document, const Qualifie
dName& tagName) |
70 { | 77 { |
71 return shouldCreateCustomElement(document, tagName.localName()) | 78 return shouldCreateCustomElement(document, tagName.localName()) |
72 && tagName.namespaceURI() == HTMLNames::xhtmlNamespaceURI; | 79 && tagName.namespaceURI() == HTMLNames::xhtmlNamespaceURI; |
73 } | 80 } |
74 | 81 |
75 HTMLElement* CustomElement::createCustomElement(Document& document, const Atomic
String& localName, CreateElementFlags flags) | 82 HTMLElement* CustomElement::createCustomElement(Document& document, const Atomic
String& localName, CreateElementFlags flags) |
76 { | 83 { |
77 return createCustomElement(document, | 84 return createCustomElement(document, |
78 QualifiedName(nullAtom, document.convertLocalName(localName), HTMLNames:
:xhtmlNamespaceURI), | 85 QualifiedName(nullAtom, localName, HTMLNames::xhtmlNamespaceURI), |
79 flags); | 86 flags); |
80 } | 87 } |
81 | 88 |
82 HTMLElement* CustomElement::createCustomElement(Document& document, const Qualif
iedName& tagName, CreateElementFlags flags) | 89 HTMLElement* CustomElement::createCustomElement(Document& document, const Qualif
iedName& tagName, CreateElementFlags flags) |
83 { | 90 { |
84 DCHECK(shouldCreateCustomElement(document, tagName)); | 91 DCHECK(shouldCreateCustomElement(document, tagName)); |
85 | 92 |
86 // TODO(kojii): Look up already defined custom elements when custom element | 93 // To create an element: |
87 // queues and upgrade are implemented. | 94 // https://dom.spec.whatwg.org/#concept-create-element |
| 95 // 6. If definition is non-null, then: |
| 96 HTMLElement* element; |
| 97 if (CustomElementsRegistry* registry = CustomElement::registry(document)) { |
| 98 if (CustomElementDefinition* definition = registry->definitionForName(ta
gName.localName())) { |
| 99 // 6.2. If the synchronous custom elements flag is not set: |
| 100 if (flags & AsynchronousCustomElements) |
| 101 return createCustomElementAsync(document, *definition, tagName); |
88 | 102 |
89 HTMLElement* element; | 103 // TODO(kojii): Synchronous mode implementation coming after async. |
| 104 } |
| 105 } |
| 106 |
90 if (V0CustomElement::isValidName(tagName.localName()) && document.registrati
onContext()) { | 107 if (V0CustomElement::isValidName(tagName.localName()) && document.registrati
onContext()) { |
91 Element* v0element = document.registrationContext()->createCustomTagElem
ent(document, tagName); | 108 Element* v0element = document.registrationContext()->createCustomTagElem
ent(document, tagName); |
92 SECURITY_DCHECK(v0element->isHTMLElement()); | 109 SECURITY_DCHECK(v0element->isHTMLElement()); |
93 element = toHTMLElement(v0element); | 110 element = toHTMLElement(v0element); |
94 } else { | 111 } else { |
95 element = HTMLElement::create(tagName, document); | 112 element = HTMLElement::create(tagName, document); |
96 } | 113 } |
97 | 114 |
98 element->setCustomElementState(CustomElementState::Undefined); | 115 element->setCustomElementState(CustomElementState::Undefined); |
99 | 116 |
100 return element; | 117 return element; |
101 } | 118 } |
102 | 119 |
| 120 HTMLElement* CustomElement::createCustomElementAsync(Document& document, |
| 121 CustomElementDefinition& definition, const QualifiedName& tagName) |
| 122 { |
| 123 // https://dom.spec.whatwg.org/#concept-create-element |
| 124 // 6. If definition is non-null, then: |
| 125 // 6.2. If the synchronous custom elements flag is not set: |
| 126 // 6.2.1. Set result to a new element that implements the HTMLElement |
| 127 // interface, with no attributes, namespace set to the HTML namespace, |
| 128 // namespace prefix set to prefix, local name set to localName, custom |
| 129 // element state set to "undefined", and node document set to document. |
| 130 HTMLElement* element = HTMLElement::create(tagName, document); |
| 131 element->setCustomElementState(CustomElementState::Undefined); |
| 132 // 6.2.2. Enqueue a custom element upgrade reaction given result and |
| 133 // definition. |
| 134 enqueueUpgradeReaction(element, &definition); |
| 135 return element; |
| 136 } |
| 137 |
103 void CustomElement::enqueueUpgradeReaction(Element* element, CustomElementDefini
tion* definition) | 138 void CustomElement::enqueueUpgradeReaction(Element* element, CustomElementDefini
tion* definition) |
104 { | 139 { |
105 // CEReactionsScope must be created by [CEReactions] in IDL, | 140 // CEReactionsScope must be created by [CEReactions] in IDL, |
106 // or callers must setup explicitly if it does not go through bindings. | 141 // or callers must setup explicitly if it does not go through bindings. |
107 DCHECK(CEReactionsScope::current()); | 142 DCHECK(CEReactionsScope::current()); |
108 CEReactionsScope::current()->enqueue(element, | 143 CEReactionsScope::current()->enqueue(element, |
109 new CustomElementUpgradeReaction(definition)); | 144 new CustomElementUpgradeReaction(definition)); |
110 } | 145 } |
111 | 146 |
112 } // namespace blink | 147 } // namespace blink |
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