1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/*
* Copyright (C) Research In Motion Limited 2010. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef SVGElementRareData_h
#define SVGElementRareData_h
#include "core/css/StylePropertySet.h"
#include "core/css/resolver/StyleResolver.h"
#include "wtf/HashSet.h"
#include "wtf/Noncopyable.h"
#include "wtf/StdLibExtras.h"
namespace WebCore {
class CSSCursorImageValue;
class SVGCursorElement;
class SVGElement;
class SVGElementRareData : public NoBaseWillBeGarbageCollectedFinalized<SVGElementRareData> {
WTF_MAKE_NONCOPYABLE(SVGElementRareData); WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
public:
SVGElementRareData(SVGElement* owner)
#if ENABLE(OILPAN)
: m_owner(owner)
, m_cursorElement(nullptr)
#else
: m_cursorElement(nullptr)
#endif
, m_cursorImageValue(nullptr)
, m_correspondingElement(nullptr)
, m_instancesUpdatesBlocked(false)
, m_useOverrideComputedStyle(false)
, m_needsOverrideComputedStyleUpdate(false)
{
}
WillBeHeapHashSet<RawPtrWillBeWeakMember<SVGElement> >& elementInstances() { return m_elementInstances; }
const WillBeHeapHashSet<RawPtrWillBeWeakMember<SVGElement> >& elementInstances() const { return m_elementInstances; }
bool instanceUpdatesBlocked() const { return m_instancesUpdatesBlocked; }
void setInstanceUpdatesBlocked(bool value) { m_instancesUpdatesBlocked = value; }
SVGCursorElement* cursorElement() const { return m_cursorElement; }
void setCursorElement(SVGCursorElement* cursorElement) { m_cursorElement = cursorElement; }
SVGElement* correspondingElement() { return m_correspondingElement.get(); }
void setCorrespondingElement(SVGElement* correspondingElement) { m_correspondingElement = correspondingElement; }
CSSCursorImageValue* cursorImageValue() const { return m_cursorImageValue; }
void setCursorImageValue(CSSCursorImageValue* cursorImageValue) { m_cursorImageValue = cursorImageValue; }
MutableStylePropertySet* animatedSMILStyleProperties() const { return m_animatedSMILStyleProperties.get(); }
MutableStylePropertySet* ensureAnimatedSMILStyleProperties()
{
if (!m_animatedSMILStyleProperties)
m_animatedSMILStyleProperties = MutableStylePropertySet::create(SVGAttributeMode);
return m_animatedSMILStyleProperties.get();
}
RenderStyle* overrideComputedStyle(Element* element, RenderStyle* parentStyle)
{
ASSERT(element);
if (!m_useOverrideComputedStyle)
return 0;
if (!m_overrideComputedStyle || m_needsOverrideComputedStyleUpdate) {
// The style computed here contains no CSS Animations/Transitions or SMIL induced rules - this is needed to compute the "base value" for the SMIL animation sandwhich model.
m_overrideComputedStyle = element->document().ensureStyleResolver().styleForElement(element, parentStyle, DisallowStyleSharing, MatchAllRulesExcludingSMIL);
m_needsOverrideComputedStyleUpdate = false;
}
ASSERT(m_overrideComputedStyle);
return m_overrideComputedStyle.get();
}
bool useOverrideComputedStyle() const { return m_useOverrideComputedStyle; }
void setUseOverrideComputedStyle(bool value) { m_useOverrideComputedStyle = value; }
void setNeedsOverrideComputedStyleUpdate() { m_needsOverrideComputedStyleUpdate = true; }
void trace(Visitor* visitor)
{
#if ENABLE(OILPAN)
visitor->trace(m_animatedSMILStyleProperties);
visitor->trace(m_elementInstances);
visitor->trace(m_correspondingElement);
visitor->trace(m_owner);
visitor->registerWeakMembers<SVGElementRareData, &SVGElementRareData::processWeakMembers>(this);
#endif
}
void processWeakMembers(Visitor* visitor)
{
#if ENABLE(OILPAN)
ASSERT(m_owner);
if (!visitor->isAlive(m_cursorElement))
m_cursorElement = nullptr;
if (!visitor->isAlive(m_cursorImageValue)) {
// The owning SVGElement is still alive and if it is pointing to an SVGCursorElement
// we unregister it when the CSSCursorImageValue dies.
if (m_cursorElement) {
m_cursorElement->removeReferencedElement(m_owner);
m_cursorElement = nullptr;
}
m_cursorImageValue = nullptr;
}
ASSERT(!m_cursorElement || visitor->isAlive(m_cursorElement));
ASSERT(!m_cursorImageValue || visitor->isAlive(m_cursorImageValue));
#endif
}
private:
#if ENABLE(OILPAN)
Member<SVGElement> m_owner;
#endif
WillBeHeapHashSet<RawPtrWillBeWeakMember<SVGElement> > m_elementInstances;
RawPtrWillBeWeakMember<SVGCursorElement> m_cursorElement;
RawPtrWillBeWeakMember<CSSCursorImageValue> m_cursorImageValue;
RefPtrWillBeMember<SVGElement> m_correspondingElement;
bool m_instancesUpdatesBlocked : 1;
bool m_useOverrideComputedStyle : 1;
bool m_needsOverrideComputedStyleUpdate : 1;
RefPtrWillBeMember<MutableStylePropertySet> m_animatedSMILStyleProperties;
RefPtr<RenderStyle> m_overrideComputedStyle;
};
}
#endif
|
