The Tor Browser: content/base/src/nsMappedAttributes.h@deefc01c0e14

Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)

     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/. */

     6 /*

     7  * A unique per-element set of attributes that is used as an

     8  * nsIStyleRule; used to implement presentational attributes.

     9  */

    11 #ifndef nsMappedAttributes_h___

    12 #define nsMappedAttributes_h___

    14 #include "nsAttrAndChildArray.h"

    15 #include "nsMappedAttributeElement.h"

    16 #include "nsIStyleRule.h"

    17 #include "mozilla/Attributes.h"

    18 #include "mozilla/MemoryReporting.h"

    20 class nsIAtom;

    21 class nsHTMLStyleSheet;

    22 class nsRuleWalker;

    24 class nsMappedAttributes MOZ_FINAL : public nsIStyleRule

    25 {

    26 public:

    27   nsMappedAttributes(nsHTMLStyleSheet* aSheet,

    28                      nsMapRuleToAttributesFunc aMapRuleFunc);

    30   // Do not return null.

    31   void* operator new(size_t size, uint32_t aAttrCount = 1) CPP_THROW_NEW;

    32   nsMappedAttributes* Clone(bool aWillAddAttr);

    34   NS_DECL_ISUPPORTS

    36   void SetAndTakeAttr(nsIAtom* aAttrName, nsAttrValue& aValue);

    37   const nsAttrValue* GetAttr(nsIAtom* aAttrName) const;

    38   const nsAttrValue* GetAttr(const nsAString& aAttrName) const;

    40   uint32_t Count() const

    41   {

    42     return mAttrCount;

    43   }

    45   bool Equals(const nsMappedAttributes* aAttributes) const;

    46   uint32_t HashValue() const;

    48   void DropStyleSheetReference()

    49   {

    50     mSheet = nullptr;

    51   }

    52   void SetStyleSheet(nsHTMLStyleSheet* aSheet);

    53   nsHTMLStyleSheet* GetStyleSheet()

    54   {

    55     return mSheet;

    56   }

    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;

    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

    81   size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;

    83 private:

    84   nsMappedAttributes(const nsMappedAttributes& aCopy);

    85   ~nsMappedAttributes();

    87   struct InternalAttr

    88   {

    89     nsAttrName mName;

    90     nsAttrValue mValue;

    91   };

    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   }

   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 };

   118 #endif /* nsMappedAttributes_h___ */

The Tor Browser / file revision

content/base/src/nsMappedAttributes.h@deefc01c0e14

content/base/src/nsMappedAttributes.h