Source/core/svg/SVGElementInstance.h - Issue 272523002: Remove SVGElementInstance

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Issue 272523002: Remove SVGElementInstance (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Address esprehns nits Created 6 years, 6 months ago

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1 /*

2 * Copyright (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>

3 * Copyright (C) 2011 Torch Mobile (Beijing) Co. Ltd. All rights reserved.

4 *

5 * This library is free software; you can redistribute it and/or

6 * modify it under the terms of the GNU Library General Public

7 * License as published by the Free Software Foundation; either

8 * version 2 of the License, or (at your option) any later version.

9 *

10 * This library is distributed in the hope that it will be useful,

11 * but WITHOUT ANY WARRANTY; without even the implied warranty of

12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

13 * Library General Public License for more details.

14 *

15 * You should have received a copy of the GNU Library General Public License

16 * along with this library; see the file COPYING.LIB. If not, write to

17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

18 * Boston, MA 02110-1301, USA.

19 */

20

21 #ifndef SVGElementInstance_h

22 #define SVGElementInstance_h

23

24 #include "bindings/v8/ScriptWrappable.h"

25 #include "core/dom/TreeShared.h"

26

27 namespace WebCore {

28

29 namespace Private {

30 template<class GenericNode, class GenericNodeContainer>

31 void addChildNodesToDeletionQueue(GenericNode& head, GenericNode& tail, Generi cNodeContainer&);

32 };

33

34 class Document;

35 class SVGElement;

36 class SVGUseElement;

37

38 // SVGElementInstance mimics Node, but without providing all its functionality

39 class SVGElementInstance FINAL : public TreeSharedWillBeRefCountedGarbageCollect ed<SVGElementInstance>, public ScriptWrappable {

40 public:

41 static PassRefPtrWillBeRawPtr<SVGElementInstance> create(SVGUseElement* corr espondingUseElement, SVGUseElement* directUseElement, PassRefPtrWillBeRawPtr<SVG Element> originalElement);

42

43 virtual ~SVGElementInstance();

44

45 void setParentOrShadowHostNode(SVGElementInstance* instance) { m_parentInsta nce = instance; }

46

47 SVGElement* correspondingElement() const { return m_element.get(); }

48 SVGUseElement* correspondingUseElement() const { return m_correspondingUseEl ement; }

49 SVGUseElement* directUseElement() const { return m_directUseElement; }

50 SVGElement* shadowTreeElement() const { return m_shadowTreeElement.get(); }

51

52 void detach();

53

54 SVGElementInstance* parentNode() const { return m_parentInstance; }

55

56 SVGElementInstance* previousSibling() const { return m_previousSibling; }

57 SVGElementInstance* nextSibling() const { return m_nextSibling; }

58

59 SVGElementInstance* firstChild() const { return m_firstChild; }

60 SVGElementInstance* lastChild() const { return m_lastChild; }

61

62 inline Document* ownerDocument() const;

63

64 virtual void trace(Visitor*);

65

66 private:

67 friend class SVGUseElement;

68 friend class TreeShared<SVGElementInstance>;

69

70 SVGElementInstance(SVGUseElement, SVGUseElement, PassRefPtrWillBeRawPtr<SV GElement> originalElement);

71

72 #if !ENABLE(OILPAN)

73 void removedLastRef();

74 #endif

75

76 bool hasTreeSharedParent() const { return !!m_parentInstance; }

77

78 void appendChild(PassRefPtrWillBeRawPtr<SVGElementInstance> child);

79 void setShadowTreeElement(SVGElement*);

80

81 template<class GenericNode, class GenericNodeContainer>

82 friend void appendChildToContainer(GenericNode& child, GenericNodeContainer& );

83

84 #if !ENABLE(OILPAN)

85 template<class GenericNode, class GenericNodeContainer>

86 friend void removeDetachedChildrenInContainer(GenericNodeContainer&);

87

88 template<class GenericNode, class GenericNodeContainer>

89 friend void Private::addChildNodesToDeletionQueue(GenericNode& head, Generi cNode& tail, GenericNodeContainer&);

90 #endif

91

92 bool hasChildren() const { return m_firstChild; }

93

94 void setFirstChild(SVGElementInstance* child) { m_firstChild = child; }

95 void setLastChild(SVGElementInstance* child) { m_lastChild = child; }

96

97 void setNextSibling(SVGElementInstance* sibling) { m_nextSibling = sibling; }

98 void setPreviousSibling(SVGElementInstance* sibling) { m_previousSibling = s ibling; }

99

100 RawPtrWillBeMember<SVGElementInstance> m_parentInstance;

101

102 RawPtrWillBeMember<SVGUseElement> m_correspondingUseElement;

103 RawPtrWillBeMember<SVGUseElement> m_directUseElement;

104 RefPtrWillBeMember<SVGElement> m_element;

105 RefPtrWillBeMember<SVGElement> m_shadowTreeElement;

106

107 RawPtrWillBeMember<SVGElementInstance> m_previousSibling;

108 RawPtrWillBeMember<SVGElementInstance> m_nextSibling;

109

110 RawPtrWillBeMember<SVGElementInstance> m_firstChild;

111 RawPtrWillBeMember<SVGElementInstance> m_lastChild;

112 };

113

114 } // namespace WebCore

115

116 #endif

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