/src/mozilla-central/layout/style/CachedInheritingStyles.cpp
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1 | | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
2 | | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ |
3 | | /* This Source Code Form is subject to the terms of the Mozilla Public |
4 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
5 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
6 | | |
7 | | #include "mozilla/CachedInheritingStyles.h" |
8 | | |
9 | | #include "mozilla/ComputedStyle.h" |
10 | | #include "nsCOMPtr.h" |
11 | | #include "nsIMemoryReporter.h" |
12 | | #include "nsWindowSizes.h" |
13 | | |
14 | | namespace mozilla { |
15 | | |
16 | | void |
17 | | CachedInheritingStyles::Insert(ComputedStyle* aStyle) |
18 | 0 | { |
19 | 0 | MOZ_ASSERT(aStyle); |
20 | 0 | MOZ_ASSERT(aStyle->IsInheritingAnonBox() || aStyle->IsLazilyCascadedPseudoElement()); |
21 | 0 |
|
22 | 0 | if (IsEmpty()) { |
23 | 0 | RefPtr<ComputedStyle> s = aStyle; |
24 | 0 | mBits = reinterpret_cast<uintptr_t>(s.forget().take()); |
25 | 0 | MOZ_ASSERT(!IsEmpty() && !IsIndirect()); |
26 | 0 | } else if (IsIndirect()) { |
27 | 0 | AsIndirect()->AppendElement(aStyle); |
28 | 0 | } else { |
29 | 0 | IndirectCache* cache = new IndirectCache(); |
30 | 0 | cache->AppendElement(dont_AddRef(AsDirect())); |
31 | 0 | cache->AppendElement(aStyle); |
32 | 0 | mBits = reinterpret_cast<uintptr_t>(cache) | 1; |
33 | 0 | MOZ_ASSERT(IsIndirect()); |
34 | 0 | } |
35 | 0 | } |
36 | | |
37 | | ComputedStyle* |
38 | | CachedInheritingStyles::Lookup(nsAtom* aPseudoTag) const |
39 | 0 | { |
40 | 0 | MOZ_ASSERT(nsCSSAnonBoxes::IsInheritingAnonBox(aPseudoTag) || |
41 | 0 | nsCSSPseudoElements::IsPseudoElement(aPseudoTag)); |
42 | 0 | if (IsIndirect()) { |
43 | 0 | for (auto& style : *AsIndirect()) { |
44 | 0 | if (style->GetPseudo() == aPseudoTag) { |
45 | 0 | return style; |
46 | 0 | } |
47 | 0 | } |
48 | 0 |
|
49 | 0 | return nullptr; |
50 | 0 | } |
51 | 0 | |
52 | 0 | ComputedStyle* direct = AsDirect(); |
53 | 0 | return direct && direct->GetPseudo() == aPseudoTag ? direct : nullptr; |
54 | 0 | } |
55 | | |
56 | | void |
57 | | CachedInheritingStyles::AddSizeOfIncludingThis(nsWindowSizes& aSizes, size_t* aCVsSize) const |
58 | 0 | { |
59 | 0 | if (IsIndirect()) { |
60 | 0 | for (auto& style : *AsIndirect()) { |
61 | 0 | if (!aSizes.mState.HaveSeenPtr(style)) { |
62 | 0 | style->AddSizeOfIncludingThis(aSizes, aCVsSize); |
63 | 0 | } |
64 | 0 | } |
65 | 0 |
|
66 | 0 | return; |
67 | 0 | } |
68 | 0 |
|
69 | 0 | ComputedStyle* direct = AsDirect(); |
70 | 0 | if (direct && !aSizes.mState.HaveSeenPtr(direct)) { |
71 | 0 | direct->AddSizeOfIncludingThis(aSizes, aCVsSize); |
72 | 0 | } |
73 | 0 | } |
74 | | |
75 | | } // namespace mozilla |