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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 #include "config.h" | 5 #include "config.h" |
6 #include "core/rendering/compositing/CompositingReasonFinder.h" | 6 #include "core/rendering/compositing/CompositingReasonFinder.h" |
7 | 7 |
8 #include "CSSPropertyNames.h" | 8 #include "CSSPropertyNames.h" |
9 #include "HTMLNames.h" | 9 #include "HTMLNames.h" |
10 #include "core/animation/ActiveAnimations.h" | 10 #include "core/animation/ActiveAnimations.h" |
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52 { | 52 { |
53 return m_compositingTriggers & AnimationTrigger; | 53 return m_compositingTriggers & AnimationTrigger; |
54 } | 54 } |
55 | 55 |
56 bool CompositingReasonFinder::isMainFrame() const | 56 bool CompositingReasonFinder::isMainFrame() const |
57 { | 57 { |
58 // FIXME: LocalFrame::isMainFrame() is probably better. | 58 // FIXME: LocalFrame::isMainFrame() is probably better. |
59 return !m_renderView.document().ownerElement(); | 59 return !m_renderView.document().ownerElement(); |
60 } | 60 } |
61 | 61 |
62 CompositingReasons CompositingReasonFinder::styleDeterminedDirectReasons(RenderO
bject* renderer) const | 62 CompositingReasons CompositingReasonFinder::styleDeterminedReasons(RenderObject*
renderer) const |
63 { | 63 { |
64 CompositingReasons directReasons = CompositingReasonNone; | 64 CompositingReasons directReasons = CompositingReasonNone; |
65 | 65 |
66 if (requiresCompositingForTransform(renderer)) | 66 if (requiresCompositingForTransform(renderer)) |
67 directReasons |= CompositingReason3DTransform; | 67 directReasons |= CompositingReason3DTransform; |
68 | 68 |
69 if (requiresCompositingForBackfaceVisibilityHidden(renderer)) | 69 if (requiresCompositingForBackfaceVisibilityHidden(renderer)) |
70 directReasons |= CompositingReasonBackfaceVisibilityHidden; | 70 directReasons |= CompositingReasonBackfaceVisibilityHidden; |
71 | 71 |
72 if (requiresCompositingForAnimation(renderer)) | |
73 directReasons |= CompositingReasonActiveAnimation; | |
74 | |
75 if (requiresCompositingForFilters(renderer)) | 72 if (requiresCompositingForFilters(renderer)) |
76 directReasons |= CompositingReasonFilters; | 73 directReasons |= CompositingReasonFilters; |
77 | 74 |
78 if (requiresCompositingForWillChange(renderer)) | 75 if (requiresCompositingForWillChange(renderer)) |
79 directReasons |= CompositingReasonWillChange; | 76 directReasons |= CompositingReasonWillChange; |
80 | 77 |
81 directReasons |= renderer->additionalCompositingReasons(m_compositingTrigger
s); | 78 ASSERT(!(directReasons & ~CompositingReasonComboAllStyleDeterminedReasons)); |
82 | |
83 ASSERT(!(directReasons & ~CompositingReasonComboAllStyleDeterminedDirectReas
ons)); | |
84 return directReasons; | 79 return directReasons; |
85 } | 80 } |
86 | 81 |
87 CompositingReasons CompositingReasonFinder::nonStyleDeterminedDirectReasons(cons
t RenderLayer* layer, bool* needToRecomputeCompositingRequirements) const | 82 CompositingReasons CompositingReasonFinder::nonStyleDeterminedDirectReasons(cons
t RenderLayer* layer, bool* needToRecomputeCompositingRequirements) const |
88 { | 83 { |
89 CompositingReasons directReasons = CompositingReasonNone; | 84 CompositingReasons directReasons = CompositingReasonNone; |
| 85 RenderObject* renderer = layer->renderer(); |
| 86 |
| 87 if (requiresCompositingForAnimation(renderer)) |
| 88 directReasons |= CompositingReasonActiveAnimation; |
90 | 89 |
91 if (requiresCompositingForOutOfFlowClipping(layer)) | 90 if (requiresCompositingForOutOfFlowClipping(layer)) |
92 directReasons |= CompositingReasonOutOfFlowClipping; | 91 directReasons |= CompositingReasonOutOfFlowClipping; |
93 | 92 |
94 if (requiresCompositingForOverflowScrolling(layer)) | 93 if (requiresCompositingForOverflowScrolling(layer)) |
95 directReasons |= CompositingReasonOverflowScrollingTouch; | 94 directReasons |= CompositingReasonOverflowScrollingTouch; |
96 | 95 |
97 if (requiresCompositingForOverflowScrollingParent(layer)) | 96 if (requiresCompositingForOverflowScrollingParent(layer)) |
98 directReasons |= CompositingReasonOverflowScrollingParent; | 97 directReasons |= CompositingReasonOverflowScrollingParent; |
99 | 98 |
100 RenderObject* renderer = layer->renderer(); | |
101 if (requiresCompositingForPosition(renderer, layer, 0, needToRecomputeCompos
itingRequirements)) | 99 if (requiresCompositingForPosition(renderer, layer, 0, needToRecomputeCompos
itingRequirements)) |
102 directReasons |= renderer->style()->position() == FixedPosition ? Compos
itingReasonPositionFixed : CompositingReasonPositionSticky; | 100 directReasons |= renderer->style()->position() == FixedPosition ? Compos
itingReasonPositionFixed : CompositingReasonPositionSticky; |
103 | 101 |
104 ASSERT(!(directReasons & CompositingReasonComboAllStyleDeterminedDirectReaso
ns)); | 102 directReasons |= renderer->additionalCompositingReasons(m_compositingTrigger
s); |
| 103 |
| 104 ASSERT(!(directReasons & CompositingReasonComboAllStyleDeterminedReasons)); |
105 return directReasons; | 105 return directReasons; |
106 } | 106 } |
107 | 107 |
108 CompositingReasons CompositingReasonFinder::directReasons(const RenderLayer* lay
er, bool* needToRecomputeCompositingRequirements) const | 108 CompositingReasons CompositingReasonFinder::directReasons(const RenderLayer* lay
er, bool* needToRecomputeCompositingRequirements) const |
109 { | 109 { |
110 return styleDeterminedDirectReasons(layer->renderer()) | nonStyleDeterminedD
irectReasons(layer, needToRecomputeCompositingRequirements); | 110 CompositingReasons styleReasons = layer->styleDeterminedCompositingReasons()
; |
| 111 ASSERT(styleDeterminedReasons(layer->renderer()) == styleReasons); |
| 112 return styleReasons | nonStyleDeterminedDirectReasons(layer, needToRecompute
CompositingRequirements); |
111 } | 113 } |
112 | 114 |
113 bool CompositingReasonFinder::requiresCompositingForScrollableFrame() const | 115 bool CompositingReasonFinder::requiresCompositingForScrollableFrame() const |
114 { | 116 { |
115 // Need this done first to determine overflow. | 117 // Need this done first to determine overflow. |
116 ASSERT(!m_renderView.needsLayout()); | 118 ASSERT(!m_renderView.needsLayout()); |
117 if (isMainFrame()) | 119 if (isMainFrame()) |
118 return false; | 120 return false; |
119 | 121 |
120 if (!(m_compositingTriggers & ScrollableInnerFrameTrigger)) | 122 if (!(m_compositingTriggers & ScrollableInnerFrameTrigger)) |
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299 | 301 |
300 return true; | 302 return true; |
301 } | 303 } |
302 | 304 |
303 bool CompositingReasonFinder::requiresCompositingForOverflowScrolling(const Rend
erLayer* layer) const | 305 bool CompositingReasonFinder::requiresCompositingForOverflowScrolling(const Rend
erLayer* layer) const |
304 { | 306 { |
305 return layer->needsCompositedScrolling(); | 307 return layer->needsCompositedScrolling(); |
306 } | 308 } |
307 | 309 |
308 } | 310 } |
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