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1 /* | 1 /* |
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
3 * (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com) | 3 * (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com) |
4 * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com) | 4 * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com) |
5 * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc.
All rights reserved. | 5 * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc.
All rights reserved. |
6 * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org> | 6 * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org> |
7 * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org> | 7 * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org> |
8 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.t
orchmobile.com/) | 8 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.t
orchmobile.com/) |
9 * Copyright (c) 2011, Code Aurora Forum. All rights reserved. | 9 * Copyright (c) 2011, Code Aurora Forum. All rights reserved. |
10 * Copyright (C) Research In Motion Limited 2011. All rights reserved. | 10 * Copyright (C) Research In Motion Limited 2011. All rights reserved. |
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102 cacheItem->clear(); | 102 cacheItem->clear(); |
103 | 103 |
104 cacheItem->set(style, parentStyle, matchResult); | 104 cacheItem->set(style, parentStyle, matchResult); |
105 } | 105 } |
106 | 106 |
107 void MatchedPropertiesCache::clear() | 107 void MatchedPropertiesCache::clear() |
108 { | 108 { |
109 m_cache.clear(); | 109 m_cache.clear(); |
110 } | 110 } |
111 | 111 |
| 112 void MatchedPropertiesCache::clearViewportDependent() |
| 113 { |
| 114 Vector<unsigned, 16> toRemove; |
| 115 for (Cache::iterator it = m_cache.begin(); it != m_cache.end(); ++it) { |
| 116 CachedMatchedProperties* cacheItem = it->value.get(); |
| 117 if (cacheItem->renderStyle->hasViewportUnits()) |
| 118 toRemove.append(it->key); |
| 119 } |
| 120 for (size_t i = 0; i < toRemove.size(); ++i) |
| 121 m_cache.remove(toRemove[i]); |
| 122 } |
| 123 |
112 void MatchedPropertiesCache::sweep(Timer<MatchedPropertiesCache>*) | 124 void MatchedPropertiesCache::sweep(Timer<MatchedPropertiesCache>*) |
113 { | 125 { |
114 // Look for cache entries containing a style declaration with a single ref a
nd remove them. | 126 // Look for cache entries containing a style declaration with a single ref a
nd remove them. |
115 // This may happen when an element attribute mutation causes it to generate
a new inlineStyle() | 127 // This may happen when an element attribute mutation causes it to generate
a new inlineStyle() |
116 // or presentationAttributeStyle(), potentially leaving this cache with the
last ref on the old one. | 128 // or presentationAttributeStyle(), potentially leaving this cache with the
last ref on the old one. |
117 Vector<unsigned, 16> toRemove; | 129 Vector<unsigned, 16> toRemove; |
118 Cache::iterator it = m_cache.begin(); | 130 Cache::iterator it = m_cache.begin(); |
119 Cache::iterator end = m_cache.end(); | 131 Cache::iterator end = m_cache.end(); |
120 for (; it != end; ++it) { | 132 for (; it != end; ++it) { |
121 CachedMatchedProperties* cacheItem = it->value.get(); | 133 CachedMatchedProperties* cacheItem = it->value.get(); |
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151 // CSSPropertyInternalCallback sets the rule's selector name into the Render
Style, and that's not recalculated if the RenderStyle is loaded from the cache,
so don't cache it. | 163 // CSSPropertyInternalCallback sets the rule's selector name into the Render
Style, and that's not recalculated if the RenderStyle is loaded from the cache,
so don't cache it. |
152 if (!style->callbackSelectors().isEmpty()) | 164 if (!style->callbackSelectors().isEmpty()) |
153 return false; | 165 return false; |
154 // The cache assumes static knowledge about which properties are inherited. | 166 // The cache assumes static knowledge about which properties are inherited. |
155 if (parentStyle->hasExplicitlyInheritedProperties()) | 167 if (parentStyle->hasExplicitlyInheritedProperties()) |
156 return false; | 168 return false; |
157 return true; | 169 return true; |
158 } | 170 } |
159 | 171 |
160 } | 172 } |
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