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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 PaintInvalidationState_h | 5 #ifndef PaintInvalidationState_h |
6 #define PaintInvalidationState_h | 6 #define PaintInvalidationState_h |
7 | 7 |
8 #include "core/CoreExport.h" | 8 #include "core/CoreExport.h" |
9 #include "platform/geometry/LayoutRect.h" | 9 #include "platform/geometry/LayoutRect.h" |
| 10 #include "platform/graphics/PaintInvalidationReason.h" |
10 #include "platform/transforms/AffineTransform.h" | 11 #include "platform/transforms/AffineTransform.h" |
11 #include "wtf/Allocator.h" | 12 #include "wtf/Allocator.h" |
12 #include "wtf/Noncopyable.h" | 13 #include "wtf/Noncopyable.h" |
13 | 14 |
14 namespace blink { | 15 namespace blink { |
15 | 16 |
16 class LayoutBoxModelObject; | 17 class LayoutBoxModelObject; |
17 class LayoutObject; | 18 class LayoutObject; |
18 class LayoutSVGModelObject; | 19 class LayoutSVGModelObject; |
19 class LayoutView; | 20 class LayoutView; |
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44 | 45 |
45 // For root LayoutView, or when sub-frame LayoutView's invalidateTreeIfNeede
d() is called directly from | 46 // For root LayoutView, or when sub-frame LayoutView's invalidateTreeIfNeede
d() is called directly from |
46 // FrameView::invalidateTreeIfNeededRecursive() instead of the owner LayoutP
art. | 47 // FrameView::invalidateTreeIfNeededRecursive() instead of the owner LayoutP
art. |
47 // TODO(wangxianzhu): Eliminate the latter case. | 48 // TODO(wangxianzhu): Eliminate the latter case. |
48 PaintInvalidationState(const LayoutView&, Vector<LayoutObject*>& pendingDela
yedPaintInvalidations); | 49 PaintInvalidationState(const LayoutView&, Vector<LayoutObject*>& pendingDela
yedPaintInvalidations); |
49 | 50 |
50 // When a PaintInvalidationState is constructed, it can be used to map point
s/rects in the object's | 51 // When a PaintInvalidationState is constructed, it can be used to map point
s/rects in the object's |
51 // local space (border box space for LayoutBoxes). After invalidation of the
current object, | 52 // local space (border box space for LayoutBoxes). After invalidation of the
current object, |
52 // before invalidation of the subtrees, this method must be called to apply
clip and scroll offset | 53 // before invalidation of the subtrees, this method must be called to apply
clip and scroll offset |
53 // etc. for creating child PaintInvalidationStates. | 54 // etc. for creating child PaintInvalidationStates. |
54 void updateForChildren(); | 55 void updateForChildren(PaintInvalidationReason); |
55 | 56 |
56 bool forcedSubtreeInvalidationWithinContainer() const { return m_forcedSubtr
eeInvalidationWithinContainer; } | 57 bool hasForcedSubtreeInvalidationFlags() const { return m_forcedSubtreeInval
idationFlags; } |
57 void setForceSubtreeInvalidationWithinContainer() { m_forcedSubtreeInvalidat
ionWithinContainer = true; } | |
58 | 58 |
59 bool forcedSubtreeInvalidationRectUpdateWithinContainer() const { return m_f
orcedSubtreeInvalidationRectUpdateWithinContainer; } | 59 bool forcedSubtreeInvalidationCheckingWithinContainer() const { return m_for
cedSubtreeInvalidationFlags & InvalidationChecking; } |
60 void setForceSubtreeInvalidationRectUpdateWithinContainer() { m_forcedSubtre
eInvalidationRectUpdateWithinContainer = true; } | 60 void setForceSubtreeInvalidationCheckingWithinContainer() { m_forcedSubtreeI
nvalidationFlags |= InvalidationChecking; } |
| 61 |
| 62 bool forcedSubtreeFullInvalidationWithinContainer() const { return m_forcedS
ubtreeInvalidationFlags & FullInvalidation; } |
| 63 |
| 64 bool forcedSubtreeInvalidationRectUpdateWithinContainerOnly() const { return
m_forcedSubtreeInvalidationFlags == InvalidationRectUpdate; } |
| 65 void setForceSubtreeInvalidationRectUpdateWithinContainer() { m_forcedSubtre
eInvalidationFlags |= InvalidationRectUpdate; } |
61 | 66 |
62 const LayoutBoxModelObject& paintInvalidationContainer() const { return *m_p
aintInvalidationContainer; } | 67 const LayoutBoxModelObject& paintInvalidationContainer() const { return *m_p
aintInvalidationContainer; } |
63 | 68 |
64 // Computes the position of the current object ((0,0) in the space of the ob
ject) | 69 // Computes the position of the current object ((0,0) in the space of the ob
ject) |
65 // in the space of paint invalidation backing. | 70 // in the space of paint invalidation backing. |
66 LayoutPoint computePositionFromPaintInvalidationBacking() const; | 71 LayoutPoint computePositionFromPaintInvalidationBacking() const; |
67 | 72 |
68 // Returns the rect bounds needed to invalidate paint of this object, | 73 // Returns the rect bounds needed to invalidate paint of this object, |
69 // in the space of paint invalidation backing. | 74 // in the space of paint invalidation backing. |
70 LayoutRect computePaintInvalidationRectInBacking() const; | 75 LayoutRect computePaintInvalidationRectInBacking() const; |
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88 | 93 |
89 void updateForCurrentObject(const PaintInvalidationState& parentState); | 94 void updateForCurrentObject(const PaintInvalidationState& parentState); |
90 void updateForNormalChildren(); | 95 void updateForNormalChildren(); |
91 | 96 |
92 LayoutRect computePaintInvalidationRectInBackingForSVG() const; | 97 LayoutRect computePaintInvalidationRectInBackingForSVG() const; |
93 | 98 |
94 void addClipRectRelativeToPaintOffset(const LayoutRect& localClipRect); | 99 void addClipRectRelativeToPaintOffset(const LayoutRect& localClipRect); |
95 | 100 |
96 const LayoutObject& m_currentObject; | 101 const LayoutObject& m_currentObject; |
97 | 102 |
98 bool m_forcedSubtreeInvalidationWithinContainer; | 103 enum ForcedSubtreeInvalidationFlag { |
99 bool m_forcedSubtreeInvalidationRectUpdateWithinContainer; | 104 InvalidationChecking = 1 << 0, |
| 105 InvalidationRectUpdate = 1 << 1, |
| 106 FullInvalidation = 1 << 2, |
| 107 FullInvalidationForStackedContents = 1 << 3, |
| 108 }; |
| 109 unsigned m_forcedSubtreeInvalidationFlags; |
100 | 110 |
101 bool m_clipped; | 111 bool m_clipped; |
102 bool m_clippedForAbsolutePosition; | 112 bool m_clippedForAbsolutePosition; |
103 | 113 |
104 // Clip rect from paintInvalidationContainer if m_cachedOffsetsEnabled is tr
ue. | 114 // Clip rect from paintInvalidationContainer if m_cachedOffsetsEnabled is tr
ue. |
105 LayoutRect m_clipRect; | 115 LayoutRect m_clipRect; |
106 LayoutRect m_clipRectForAbsolutePosition; | 116 LayoutRect m_clipRectForAbsolutePosition; |
107 | 117 |
108 // x/y offset from the paintInvalidationContainer if m_cachedOffsetsEnabled
is true. | 118 // x/y offset from the paintInvalidationContainer if m_cachedOffsetsEnabled
is true. |
109 // It includes relative positioning and scroll offsets. | 119 // It includes relative positioning and scroll offsets. |
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149 | 159 |
150 #ifdef CHECK_FAST_PATH_SLOW_PATH_EQUALITY | 160 #ifdef CHECK_FAST_PATH_SLOW_PATH_EQUALITY |
151 void assertFastPathAndSlowPathRectsEqual(const LayoutRect& fastPathRect, con
st LayoutRect& slowPathRect) const; | 161 void assertFastPathAndSlowPathRectsEqual(const LayoutRect& fastPathRect, con
st LayoutRect& slowPathRect) const; |
152 bool m_canCheckFastPathSlowPathEquality; | 162 bool m_canCheckFastPathSlowPathEquality; |
153 #endif | 163 #endif |
154 }; | 164 }; |
155 | 165 |
156 } // namespace blink | 166 } // namespace blink |
157 | 167 |
158 #endif // PaintInvalidationState_h | 168 #endif // PaintInvalidationState_h |
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