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| 1 /* | 1 /* |
| 2 * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org) | 2 * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org) |
| 3 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights | 3 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights |
| 4 * reserved. | 4 * reserved. |
| 5 * Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved. | 5 * Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved. |
| 6 * | 6 * |
| 7 * This library is free software; you can redistribute it and/or | 7 * This library is free software; you can redistribute it and/or |
| 8 * modify it under the terms of the GNU Library General Public | 8 * modify it under the terms of the GNU Library General Public |
| 9 * License as published by the Free Software Foundation; either | 9 * License as published by the Free Software Foundation; either |
| 10 * version 2 of the License, or (at your option) any later version. | 10 * version 2 of the License, or (at your option) any later version. |
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| 65 RGBA32 color_; | 65 RGBA32 color_; |
| 66 unsigned bitfield_; | 66 unsigned bitfield_; |
| 67 }; | 67 }; |
| 68 | 68 |
| 69 ASSERT_SIZE(BorderValue, SameSizeAsBorderValue); | 69 ASSERT_SIZE(BorderValue, SameSizeAsBorderValue); |
| 70 | 70 |
| 71 // Since different compilers/architectures pack ComputedStyle differently, | 71 // Since different compilers/architectures pack ComputedStyle differently, |
| 72 // re-create the same structure for an accurate size comparison. | 72 // re-create the same structure for an accurate size comparison. |
| 73 struct SameSizeAsComputedStyle : public RefCounted<SameSizeAsComputedStyle> { | 73 struct SameSizeAsComputedStyle : public RefCounted<SameSizeAsComputedStyle> { |
| 74 struct ComputedStyleBase { | 74 struct ComputedStyleBase { |
| 75 void* data_refs[6]; | 75 void* data_refs[7]; |
| 76 unsigned bitfields_[4]; | 76 unsigned bitfields_[4]; |
| 77 } base_; | 77 } base_; |
| 78 | 78 |
| 79 void* data_refs[1]; | |
| 80 void* own_ptrs[1]; | 79 void* own_ptrs[1]; |
| 81 void* data_ref_svg_style; | 80 void* data_ref_svg_style; |
| 82 }; | 81 }; |
| 83 | 82 |
| 84 // If this assert fails, it means that size of ComputedStyle has changed. Please | 83 // If this assert fails, it means that size of ComputedStyle has changed. Please |
| 85 // check that you really *do* what to increase the size of ComputedStyle, then | 84 // check that you really *do* what to increase the size of ComputedStyle, then |
| 86 // update the SameSizeAsComputedStyle struct to match the updated storage of | 85 // update the SameSizeAsComputedStyle struct to match the updated storage of |
| 87 // ComputedStyle. | 86 // ComputedStyle. |
| 88 ASSERT_SIZE(ComputedStyle, SameSizeAsComputedStyle); | 87 ASSERT_SIZE(ComputedStyle, SameSizeAsComputedStyle); |
| 89 | 88 |
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| 115 new_style->SetDisplay(display); | 114 new_style->SetDisplay(display); |
| 116 return new_style; | 115 return new_style; |
| 117 } | 116 } |
| 118 | 117 |
| 119 RefPtr<ComputedStyle> ComputedStyle::Clone(const ComputedStyle& other) { | 118 RefPtr<ComputedStyle> ComputedStyle::Clone(const ComputedStyle& other) { |
| 120 return AdoptRef(new ComputedStyle(other)); | 119 return AdoptRef(new ComputedStyle(other)); |
| 121 } | 120 } |
| 122 | 121 |
| 123 ALWAYS_INLINE ComputedStyle::ComputedStyle() | 122 ALWAYS_INLINE ComputedStyle::ComputedStyle() |
| 124 : ComputedStyleBase(), RefCounted<ComputedStyle>() { | 123 : ComputedStyleBase(), RefCounted<ComputedStyle>() { |
| 125 rare_non_inherited_data_.Init(); | 124 // TODO(shend): Generate these. |
| 126 rare_non_inherited_data_.Access()->deprecated_flexible_box_data_.Init(); | 125 rare_non_inherited_data_.Access()->deprecated_flexible_box_data_.Init(); |
| 127 rare_non_inherited_data_.Access()->flexible_box_data_.Init(); | 126 rare_non_inherited_data_.Access()->flexible_box_data_.Init(); |
| 128 rare_non_inherited_data_.Access()->multi_col_data_.Init(); | 127 rare_non_inherited_data_.Access()->multi_col_data_.Init(); |
| 129 rare_non_inherited_data_.Access()->transform_data_.Init(); | 128 rare_non_inherited_data_.Access()->transform_data_.Init(); |
| 130 rare_non_inherited_data_.Access()->will_change_data_.Init(); | 129 rare_non_inherited_data_.Access()->will_change_data_.Init(); |
| 131 rare_non_inherited_data_.Access()->filter_.Init(); | 130 rare_non_inherited_data_.Access()->filter_.Init(); |
| 132 rare_non_inherited_data_.Access()->backdrop_filter_.Init(); | 131 rare_non_inherited_data_.Access()->backdrop_filter_.Init(); |
| 133 rare_non_inherited_data_.Access()->grid_data_.Init(); | 132 rare_non_inherited_data_.Access()->grid_data_.Init(); |
| 134 rare_non_inherited_data_.Access()->grid_item_data_.Init(); | 133 rare_non_inherited_data_.Access()->grid_item_data_.Init(); |
| 135 rare_non_inherited_data_.Access()->scroll_snap_data_.Init(); | 134 rare_non_inherited_data_.Access()->scroll_snap_data_.Init(); |
| 136 svg_style_.Init(); | 135 svg_style_.Init(); |
| 137 } | 136 } |
| 138 | 137 |
| 139 ALWAYS_INLINE ComputedStyle::ComputedStyle(const ComputedStyle& o) | 138 ALWAYS_INLINE ComputedStyle::ComputedStyle(const ComputedStyle& o) |
| 140 : ComputedStyleBase(o), | 139 : ComputedStyleBase(o), |
| 141 RefCounted<ComputedStyle>(), | 140 RefCounted<ComputedStyle>(), |
| 142 rare_non_inherited_data_(o.rare_non_inherited_data_), | |
| 143 svg_style_(o.svg_style_) {} | 141 svg_style_(o.svg_style_) {} |
| 144 | 142 |
| 145 static StyleRecalcChange DiffPseudoStyles(const ComputedStyle& old_style, | 143 static StyleRecalcChange DiffPseudoStyles(const ComputedStyle& old_style, |
| 146 const ComputedStyle& new_style) { | 144 const ComputedStyle& new_style) { |
| 147 // If the pseudoStyles have changed, ensure layoutObject triggers setStyle. | 145 // If the pseudoStyles have changed, ensure layoutObject triggers setStyle. |
| 148 if (!old_style.HasAnyPublicPseudoStyles() && | 146 if (!old_style.HasAnyPublicPseudoStyles() && |
| 149 !new_style.HasAnyPublicPseudoStyles()) | 147 !new_style.HasAnyPublicPseudoStyles()) |
| 150 return kNoChange; | 148 return kNoChange; |
| 151 for (PseudoId pseudo_id = kFirstPublicPseudoId; | 149 for (PseudoId pseudo_id = kFirstPublicPseudoId; |
| 152 pseudo_id < kFirstInternalPseudoId; | 150 pseudo_id < kFirstInternalPseudoId; |
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| 312 // Even if surrounding content is user-editable, shadow DOM should act as a | 310 // Even if surrounding content is user-editable, shadow DOM should act as a |
| 313 // single unit, and not necessarily be editable | 311 // single unit, and not necessarily be editable |
| 314 SetUserModify(current_user_modify); | 312 SetUserModify(current_user_modify); |
| 315 } | 313 } |
| 316 } | 314 } |
| 317 | 315 |
| 318 void ComputedStyle::CopyNonInheritedFromCached(const ComputedStyle& other) { | 316 void ComputedStyle::CopyNonInheritedFromCached(const ComputedStyle& other) { |
| 319 DCHECK(MatchedPropertiesCache::IsStyleCacheable(other)); | 317 DCHECK(MatchedPropertiesCache::IsStyleCacheable(other)); |
| 320 | 318 |
| 321 ComputedStyleBase::CopyNonInheritedFromCached(other); | 319 ComputedStyleBase::CopyNonInheritedFromCached(other); |
| 322 rare_non_inherited_data_ = other.rare_non_inherited_data_; | |
| 323 | 320 |
| 324 // The flags are copied one-by-one because they contain | 321 // The flags are copied one-by-one because they contain |
| 325 // bunch of stuff other than real style data. | 322 // bunch of stuff other than real style data. |
| 326 // See comments for each skipped flag below. | 323 // See comments for each skipped flag below. |
| 327 | 324 |
| 328 // Correctly set during selector matching: | 325 // Correctly set during selector matching: |
| 329 // m_styleType | 326 // m_styleType |
| 330 // m_pseudoBits | 327 // m_pseudoBits |
| 331 | 328 |
| 332 // Set correctly while computing style for children: | 329 // Set correctly while computing style for children: |
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| 437 svg_style_->InheritedEqual(*other.svg_style_); | 434 svg_style_->InheritedEqual(*other.svg_style_); |
| 438 } | 435 } |
| 439 | 436 |
| 440 bool ComputedStyle::LoadingCustomFontsEqual(const ComputedStyle& other) const { | 437 bool ComputedStyle::LoadingCustomFontsEqual(const ComputedStyle& other) const { |
| 441 return GetFont().LoadingCustomFonts() == other.GetFont().LoadingCustomFonts(); | 438 return GetFont().LoadingCustomFonts() == other.GetFont().LoadingCustomFonts(); |
| 442 } | 439 } |
| 443 | 440 |
| 444 bool ComputedStyle::NonInheritedEqual(const ComputedStyle& other) const { | 441 bool ComputedStyle::NonInheritedEqual(const ComputedStyle& other) const { |
| 445 // compare everything except the pseudoStyle pointer | 442 // compare everything except the pseudoStyle pointer |
| 446 return ComputedStyleBase::NonInheritedEqual(other) && | 443 return ComputedStyleBase::NonInheritedEqual(other) && |
| 447 rare_non_inherited_data_ == other.rare_non_inherited_data_ && | |
| 448 svg_style_->NonInheritedEqual(*other.svg_style_); | 444 svg_style_->NonInheritedEqual(*other.svg_style_); |
| 449 } | 445 } |
| 450 | 446 |
| 451 bool ComputedStyle::InheritedDataShared(const ComputedStyle& other) const { | 447 bool ComputedStyle::InheritedDataShared(const ComputedStyle& other) const { |
| 452 // This is a fast check that only looks if the data structures are shared. | 448 // This is a fast check that only looks if the data structures are shared. |
| 453 return ComputedStyleBase::InheritedDataShared(other) && | 449 return ComputedStyleBase::InheritedDataShared(other) && |
| 454 svg_style_.Get() == other.svg_style_.Get(); | 450 svg_style_.Get() == other.svg_style_.Get(); |
| 455 } | 451 } |
| 456 | 452 |
| 457 static bool DependenceOnContentHeightHasChanged(const ComputedStyle& a, | 453 static bool DependenceOnContentHeightHasChanged(const ComputedStyle& a, |
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| 2351 if (value < 0) | 2347 if (value < 0) |
| 2352 fvalue -= 0.5f; | 2348 fvalue -= 0.5f; |
| 2353 else | 2349 else |
| 2354 fvalue += 0.5f; | 2350 fvalue += 0.5f; |
| 2355 } | 2351 } |
| 2356 | 2352 |
| 2357 return RoundForImpreciseConversion<int>(fvalue / zoom_factor); | 2353 return RoundForImpreciseConversion<int>(fvalue / zoom_factor); |
| 2358 } | 2354 } |
| 2359 | 2355 |
| 2360 } // namespace blink | 2356 } // namespace blink |
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