The Tor Browser / file comparison
comparison: content/base/src/nsMappedAttributes.h
content/base/src/nsMappedAttributes.h
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:9b728e4d51ad |
|---|---|
| 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 /* | |
| 7 * A unique per-element set of attributes that is used as an | |
| 8 * nsIStyleRule; used to implement presentational attributes. | |
| 9 */ | |
| 10 | |
| 11 #ifndef nsMappedAttributes_h___ | |
| 12 #define nsMappedAttributes_h___ | |
| 13 | |
| 14 #include "nsAttrAndChildArray.h" | |
| 15 #include "nsMappedAttributeElement.h" | |
| 16 #include "nsIStyleRule.h" | |
| 17 #include "mozilla/Attributes.h" | |
| 18 #include "mozilla/MemoryReporting.h" | |
| 19 | |
| 20 class nsIAtom; | |
| 21 class nsHTMLStyleSheet; | |
| 22 class nsRuleWalker; | |
| 23 | |
| 24 class nsMappedAttributes MOZ_FINAL : public nsIStyleRule | |
| 25 { | |
| 26 public: | |
| 27 nsMappedAttributes(nsHTMLStyleSheet* aSheet, | |
| 28 nsMapRuleToAttributesFunc aMapRuleFunc); | |
| 29 | |
| 30 // Do not return null. | |
| 31 void* operator new(size_t size, uint32_t aAttrCount = 1) CPP_THROW_NEW; | |
| 32 nsMappedAttributes* Clone(bool aWillAddAttr); | |
| 33 | |
| 34 NS_DECL_ISUPPORTS | |
| 35 | |
| 36 void SetAndTakeAttr(nsIAtom* aAttrName, nsAttrValue& aValue); | |
| 37 const nsAttrValue* GetAttr(nsIAtom* aAttrName) const; | |
| 38 const nsAttrValue* GetAttr(const nsAString& aAttrName) const; | |
| 39 | |
| 40 uint32_t Count() const | |
| 41 { | |
| 42 return mAttrCount; | |
| 43 } | |
| 44 | |
| 45 bool Equals(const nsMappedAttributes* aAttributes) const; | |
| 46 uint32_t HashValue() const; | |
| 47 | |
| 48 void DropStyleSheetReference() | |
| 49 { | |
| 50 mSheet = nullptr; | |
| 51 } | |
| 52 void SetStyleSheet(nsHTMLStyleSheet* aSheet); | |
| 53 nsHTMLStyleSheet* GetStyleSheet() | |
| 54 { | |
| 55 return mSheet; | |
| 56 } | |
| 57 | |
| 58 const nsAttrName* NameAt(uint32_t aPos) const | |
| 59 { | |
| 60 NS_ASSERTION(aPos < mAttrCount, "out-of-bounds"); | |
| 61 return &Attrs()[aPos].mName; | |
| 62 } | |
| 63 const nsAttrValue* AttrAt(uint32_t aPos) const | |
| 64 { | |
| 65 NS_ASSERTION(aPos < mAttrCount, "out-of-bounds"); | |
| 66 return &Attrs()[aPos].mValue; | |
| 67 } | |
| 68 // Remove the attr at position aPos. The value of the attr is placed in | |
| 69 // aValue; any value that was already in aValue is destroyed. | |
| 70 void RemoveAttrAt(uint32_t aPos, nsAttrValue& aValue); | |
| 71 const nsAttrName* GetExistingAttrNameFromQName(const nsAString& aName) const; | |
| 72 int32_t IndexOfAttr(nsIAtom* aLocalName) const; | |
| 73 | |
| 74 | |
| 75 // nsIStyleRule | |
| 76 virtual void MapRuleInfoInto(nsRuleData* aRuleData) MOZ_OVERRIDE; | |
| 77 #ifdef DEBUG | |
| 78 virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE; | |
| 79 #endif | |
| 80 | |
| 81 size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const; | |
| 82 | |
| 83 private: | |
| 84 nsMappedAttributes(const nsMappedAttributes& aCopy); | |
| 85 ~nsMappedAttributes(); | |
| 86 | |
| 87 struct InternalAttr | |
| 88 { | |
| 89 nsAttrName mName; | |
| 90 nsAttrValue mValue; | |
| 91 }; | |
| 92 | |
| 93 /** | |
| 94 * Due to a compiler bug in VisualAge C++ for AIX, we need to return the | |
| 95 * address of the first index into mAttrs here, instead of simply | |
| 96 * returning mAttrs itself. | |
| 97 * | |
| 98 * See Bug 231104 for more information. | |
| 99 */ | |
| 100 const InternalAttr* Attrs() const | |
| 101 { | |
| 102 return reinterpret_cast<const InternalAttr*>(&(mAttrs[0])); | |
| 103 } | |
| 104 InternalAttr* Attrs() | |
| 105 { | |
| 106 return reinterpret_cast<InternalAttr*>(&(mAttrs[0])); | |
| 107 } | |
| 108 | |
| 109 uint16_t mAttrCount; | |
| 110 #ifdef DEBUG | |
| 111 uint16_t mBufferSize; | |
| 112 #endif | |
| 113 nsHTMLStyleSheet* mSheet; //weak | |
| 114 nsMapRuleToAttributesFunc mRuleMapper; | |
| 115 void* mAttrs[1]; | |
| 116 }; | |
| 117 | |
| 118 #endif /* nsMappedAttributes_h___ */ |
