The Tor Browser / file comparison
comparison: layout/style/nsCSSPseudoElements.cpp
layout/style/nsCSSPseudoElements.cpp
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:b86258fc367d |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 /* atom list for CSS pseudo-elements */ | |
| 7 | |
| 8 #include "mozilla/ArrayUtils.h" | |
| 9 | |
| 10 #include "nsCSSPseudoElements.h" | |
| 11 #include "nsAtomListUtils.h" | |
| 12 #include "nsStaticAtom.h" | |
| 13 #include "nsCSSAnonBoxes.h" | |
| 14 | |
| 15 using namespace mozilla; | |
| 16 | |
| 17 // define storage for all atoms | |
| 18 #define CSS_PSEUDO_ELEMENT(name_, value_, flags_) \ | |
| 19 nsICSSPseudoElement* nsCSSPseudoElements::name_; | |
| 20 #include "nsCSSPseudoElementList.h" | |
| 21 #undef CSS_PSEUDO_ELEMENT | |
| 22 | |
| 23 #define CSS_PSEUDO_ELEMENT(name_, value_, flags_) \ | |
| 24 NS_STATIC_ATOM_BUFFER(name_##_pseudo_element_buffer, value_) | |
| 25 #include "nsCSSPseudoElementList.h" | |
| 26 #undef CSS_PSEUDO_ELEMENT | |
| 27 | |
| 28 static const nsStaticAtom CSSPseudoElements_info[] = { | |
| 29 #define CSS_PSEUDO_ELEMENT(name_, value_, flags_) \ | |
| 30 NS_STATIC_ATOM(name_##_pseudo_element_buffer, (nsIAtom**)&nsCSSPseudoElements::name_), | |
| 31 #include "nsCSSPseudoElementList.h" | |
| 32 #undef CSS_PSEUDO_ELEMENT | |
| 33 }; | |
| 34 | |
| 35 // Separate from the array above so that we can have an array of | |
| 36 // nsStaticAtom (to pass to NS_RegisterStaticAtoms and | |
| 37 // nsAtomListUtils::IsMember), but with corresponding indices (so the | |
| 38 // i-th element of this array is the flags for the i-th pseudo-element | |
| 39 // in the previous array). | |
| 40 static const uint32_t CSSPseudoElements_flags[] = { | |
| 41 #define CSS_PSEUDO_ELEMENT(name_, value_, flags_) \ | |
| 42 flags_, | |
| 43 #include "nsCSSPseudoElementList.h" | |
| 44 #undef CSS_PSEUDO_ELEMENT | |
| 45 }; | |
| 46 | |
| 47 void nsCSSPseudoElements::AddRefAtoms() | |
| 48 { | |
| 49 NS_RegisterStaticAtoms(CSSPseudoElements_info); | |
| 50 } | |
| 51 | |
| 52 bool nsCSSPseudoElements::IsPseudoElement(nsIAtom *aAtom) | |
| 53 { | |
| 54 return nsAtomListUtils::IsMember(aAtom, CSSPseudoElements_info, | |
| 55 ArrayLength(CSSPseudoElements_info)); | |
| 56 } | |
| 57 | |
| 58 /* static */ bool | |
| 59 nsCSSPseudoElements::IsCSS2PseudoElement(nsIAtom *aAtom) | |
| 60 { | |
| 61 // We don't implement this using PseudoElementHasFlags because callers | |
| 62 // want to pass things that could be anon boxes. | |
| 63 NS_ASSERTION(nsCSSPseudoElements::IsPseudoElement(aAtom) || | |
| 64 nsCSSAnonBoxes::IsAnonBox(aAtom), | |
| 65 "must be pseudo element or anon box"); | |
| 66 bool result = aAtom == nsCSSPseudoElements::after || | |
| 67 aAtom == nsCSSPseudoElements::before || | |
| 68 aAtom == nsCSSPseudoElements::firstLetter || | |
| 69 aAtom == nsCSSPseudoElements::firstLine; | |
| 70 NS_ASSERTION(nsCSSAnonBoxes::IsAnonBox(aAtom) || | |
| 71 result == | |
| 72 PseudoElementHasFlags(GetPseudoType(aAtom), CSS_PSEUDO_ELEMENT_IS_CSS2), | |
| 73 "result doesn't match flags"); | |
| 74 return result; | |
| 75 } | |
| 76 | |
| 77 /* static */ nsCSSPseudoElements::Type | |
| 78 nsCSSPseudoElements::GetPseudoType(nsIAtom *aAtom) | |
| 79 { | |
| 80 for (uint32_t i = 0; i < ArrayLength(CSSPseudoElements_info); ++i) { | |
| 81 if (*CSSPseudoElements_info[i].mAtom == aAtom) { | |
| 82 return Type(i); | |
| 83 } | |
| 84 } | |
| 85 | |
| 86 if (nsCSSAnonBoxes::IsAnonBox(aAtom)) { | |
| 87 #ifdef MOZ_XUL | |
| 88 if (nsCSSAnonBoxes::IsTreePseudoElement(aAtom)) { | |
| 89 return ePseudo_XULTree; | |
| 90 } | |
| 91 #endif | |
| 92 | |
| 93 return ePseudo_AnonBox; | |
| 94 } | |
| 95 | |
| 96 return ePseudo_NotPseudoElement; | |
| 97 } | |
| 98 | |
| 99 /* static */ nsIAtom* | |
| 100 nsCSSPseudoElements::GetPseudoAtom(Type aType) | |
| 101 { | |
| 102 NS_ASSERTION(aType < nsCSSPseudoElements::ePseudo_PseudoElementCount, | |
| 103 "Unexpected type"); | |
| 104 return *CSSPseudoElements_info[aType].mAtom; | |
| 105 } | |
| 106 | |
| 107 /* static */ uint32_t | |
| 108 nsCSSPseudoElements::FlagsForPseudoElement(const Type aType) | |
| 109 { | |
| 110 size_t index = static_cast<size_t>(aType); | |
| 111 NS_ASSERTION(index < ArrayLength(CSSPseudoElements_flags), | |
| 112 "argument must be a pseudo-element"); | |
| 113 return CSSPseudoElements_flags[index]; | |
| 114 } | |
| 115 | |
| 116 /* static */ bool | |
| 117 nsCSSPseudoElements::PseudoElementSupportsUserActionState(const Type aType) | |
| 118 { | |
| 119 return PseudoElementHasFlags(aType, | |
| 120 CSS_PSEUDO_ELEMENT_SUPPORTS_USER_ACTION_STATE); | |
| 121 } |
