Source/core/svg/properties/SVGMatrixTearOff.h - Issue 153883003: [SVG] SVGAnimatedTransform{,List} migration to new SVG property impl.

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Issue 153883003: [SVG] SVGAnimatedTransform{,List} migration to new SVG property impl. (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: remove m_zoomAndPan Created 6 years, 10 months ago

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1 /*

2 * Copyright (C) Research In Motion Limited 2010. All rights reserved.

3 *

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

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

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

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

8 *

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

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

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

12 * Library General Public License for more details.

13 *

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

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

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

17 * Boston, MA 02110-1301, USA.

18 */

19

20 #ifndef SVGMatrixTearOff_h

21 #define SVGMatrixTearOff_h

22

23 #include "core/svg/SVGTransform.h"

24 #include "core/svg/properties/SVGPropertyTearOff.h"

25

26 namespace WebCore {

27

28 class SVGMatrixTearOff FINAL : public SVGPropertyTearOff<SVGMatrix> {

29 public:

30 // Used for child types (baseVal/animVal) of a SVGAnimated* property (for ex ample: SVGAnimatedLength::baseVal()).

31 // Also used for list tear offs (for example: text.x.baseVal.getItem(0)).

32 static PassRefPtr<SVGMatrixTearOff> create(SVGAnimatedProperty* animatedProp erty, SVGPropertyRole role, SVGMatrix& value)

33 {

34 ASSERT(animatedProperty);

35 return adoptRef(new SVGMatrixTearOff(animatedProperty, role, value));

36 }

37

38 // Used for non-animated POD types (for example: SVGSVGElement::createSVGLen gth()).

39 static PassRefPtr<SVGMatrixTearOff> create(const SVGMatrix& initialValue)

40 {

41 return adoptRef(new SVGMatrixTearOff(initialValue));

42 }

43

44 // Used for non-animated POD types that are not associated with a SVGAnimate dProperty object, nor with a XML DOM attribute

45 // and that contain a parent type that's exposed to the bindings via a SVGSt aticPropertyTearOff object

46 // (for example: SVGTransform::matrix).

47 static PassRefPtr<SVGMatrixTearOff> create(SVGPropertyTearOff<SVGTransform>* parent, SVGMatrix& value)

48 {

49 ASSERT(parent);

50 RefPtr<SVGMatrixTearOff> result = adoptRef(new SVGMatrixTearOff(parent, value));

51 parent->addChild(result->m_weakFactory.createWeakPtr());

52 return result.release();

53 }

54

55 virtual void commitChange() OVERRIDE

56 {

57 if (m_parent) {

58 // This is a tear-off from a SVGPropertyTearOff<SVGTransform>.

59 m_parent->propertyReference().updateSVGMatrix();

60 m_parent->commitChange();

61 } else {

62 // This is either a detached tear-off or a reference tear-off from a AnimatedProperty.

63 SVGPropertyTearOff<SVGMatrix>::commitChange();

64 }

65 }

66

67 // SVGMatrixTearOff can be a child tear-off of a SVGTransform tear-off,

68 // which means that \|m_value\| may be pointing inside \|m_value\| of the other tear-off.

69 // This method is called from the parent SVGTransform tear-off when \|m_paren t->m_value\| is updated,

70 // so that \|this->m_value\| would point to valid location.

71 virtual void setValueForMatrixIfNeeded(SVGTransform* transform) OVERRIDE

72 {

73 setValue(transform->svgMatrix());

74 }

75

76 SVGPropertyTearOff<SVGTransform>* parent() { return m_parent; }

77

78 private:

79 SVGMatrixTearOff(SVGAnimatedProperty* animatedProperty, SVGPropertyRole role , SVGMatrix& value)

80 : SVGPropertyTearOff<SVGMatrix>(animatedProperty, role, value)

81 , m_parent(0)

82 , m_weakFactory(this)

83 {

84 }

85

86 SVGMatrixTearOff(const SVGMatrix& initialValue)

87 : SVGPropertyTearOff<SVGMatrix>(initialValue)

88 , m_parent(0)

89 , m_weakFactory(this)

90 {

91 }

92

93 SVGMatrixTearOff(SVGPropertyTearOff<SVGTransform>* parent, SVGMatrix& value)

94 : SVGPropertyTearOff<SVGMatrix>(0, UndefinedRole, value)

95 , m_parent(parent)

96 , m_weakFactory(this)

97 {

98 }

99

100 // m_parent is kept alive from V8 wrapper.

101 SVGPropertyTearOff<SVGTransform>* m_parent;

102

103 WeakPtrFactory<SVGPropertyTearOffBase > m_weakFactory;

104 };

105

106 }

107

108 #endif // SVGMatrixTearOff_h

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