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
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "config.h"
#include "core/svg/SVGElementRareData.h"
#include "core/css/CSSCursorImageValue.h"
#include "core/css/resolver/StyleResolver.h"
#include "core/dom/Document.h"
#include "core/svg/SVGCursorElement.h"
#include "platform/transforms/AffineTransform.h"
namespace blink {
MutableStylePropertySet* SVGElementRareData::ensureAnimatedSMILStyleProperties()
{
if (!m_animatedSMILStyleProperties)
m_animatedSMILStyleProperties = MutableStylePropertySet::create(SVGAttributeMode);
return m_animatedSMILStyleProperties.get();
}
RenderStyle* SVGElementRareData::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();
}
void SVGElementRareData::trace(Visitor* visitor)
{
#if ENABLE(OILPAN)
visitor->trace(m_outgoingReferences);
visitor->trace(m_incomingReferences);
visitor->trace(m_animatedSMILStyleProperties);
visitor->trace(m_elementInstances);
visitor->trace(m_correspondingElement);
visitor->trace(m_owner);
visitor->registerWeakMembers<SVGElementRareData, &SVGElementRareData::processWeakMembers>(this);
#endif
}
void SVGElementRareData::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
}
AffineTransform* SVGElementRareData::animateMotionTransform()
{
if (!m_animateMotionTransform)
m_animateMotionTransform = adoptPtr(new AffineTransform);
return m_animateMotionTransform.get();
}
}
|
