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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 #ifndef CustomElement_h | 5 #ifndef CustomElement_h |
6 #define CustomElement_h | 6 #define CustomElement_h |
7 | 7 |
8 #include "core/CoreExport.h" | 8 #include "core/CoreExport.h" |
9 #include "core/dom/Document.h" | 9 #include "core/HTMLNames.h" |
| 10 #include "core/dom/Element.h" |
10 #include "wtf/Allocator.h" | 11 #include "wtf/Allocator.h" |
11 #include "wtf/text/AtomicString.h" | 12 #include "wtf/text/AtomicString.h" |
12 | 13 |
13 namespace blink { | 14 namespace blink { |
14 | 15 |
15 class Document; | 16 class Document; |
16 class HTMLElement; | 17 class HTMLElement; |
17 class QualifiedName; | 18 class QualifiedName; |
| 19 class CustomElementRegistry; |
18 | 20 |
19 class CORE_EXPORT CustomElement { | 21 class CORE_EXPORT CustomElement { |
20 STATIC_ONLY(CustomElement); | 22 STATIC_ONLY(CustomElement); |
21 public: | 23 public: |
| 24 // Retrieves the CustomElementsRegistry for Element, if any. This |
| 25 // may be a different object for a given element over its lifetime |
| 26 // as it moves between documents. |
| 27 static CustomElementsRegistry* registry(const Element&); |
| 28 |
| 29 // Returns true if element could possibly match a custom element |
| 30 // descriptor *now*. See CustomElementDescriptor::matches for the |
| 31 // meaning of "match". Custom element processing which depends on |
| 32 // matching a descriptor, such as upgrade, can be skipped for |
| 33 // elements that fail this test. |
| 34 // |
| 35 // Although this result is currently constant for a given element, |
| 36 // when customized built-in elements are implemented the result |
| 37 // will depend on the value of the 'is' attribute. In addition, |
| 38 // these elements may stop matching descriptors after being |
| 39 // upgraded, so use Node::getCustomElementState to detect |
| 40 // customized elements. |
| 41 static bool descriptorMayMatch(const Element& element) |
| 42 { |
| 43 // TODO(dominicc): Broaden this check when customized built-in |
| 44 // elements are implemented. |
| 45 return isValidName(element.localName()) |
| 46 && element.namespaceURI() == HTMLNames::xhtmlNamespaceURI; |
| 47 } |
| 48 |
22 static bool isValidName(const AtomicString& name); | 49 static bool isValidName(const AtomicString& name); |
23 | 50 |
24 static bool shouldCreateCustomElement(Document&, const AtomicString& localNa
me); | 51 static bool shouldCreateCustomElement(Document&, const AtomicString& localNa
me); |
25 static bool shouldCreateCustomElement(Document&, const QualifiedName&); | 52 static bool shouldCreateCustomElement(Document&, const QualifiedName&); |
26 | 53 |
27 static HTMLElement* createCustomElement(Document&, const AtomicString& local
Name, CreateElementFlags); | 54 static HTMLElement* createCustomElement(Document&, const AtomicString& local
Name, CreateElementFlags); |
28 static HTMLElement* createCustomElement(Document&, const QualifiedName&, Cre
ateElementFlags); | 55 static HTMLElement* createCustomElement(Document&, const QualifiedName&, Cre
ateElementFlags); |
29 }; | 56 }; |
30 | 57 |
31 } // namespace blink | 58 } // namespace blink |
32 | 59 |
33 #endif // CustomElement_h | 60 #endif // CustomElement_h |
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