content/base/src/nsXMLNameSpaceMap.cpp

Thu, 15 Jan 2015 21:03:48 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 15 Jan 2015 21:03:48 +0100
branch
TOR_BUG_9701
changeset 11
deefc01c0e14
permissions
-rw-r--r--

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 class for keeping track of prefix-to-namespace-id mappings
     8  */
    10 #include "nsXMLNameSpaceMap.h"
    11 #include "nsContentUtils.h"
    12 #include "nsGkAtoms.h"
    13 #include "nsNameSpaceManager.h"
    15 template <>
    16 class nsDefaultComparator <nsNameSpaceEntry, nsIAtom*> {
    17   public:
    18     bool Equals(const nsNameSpaceEntry& aEntry, nsIAtom* const& aPrefix) const {
    19       return aEntry.prefix == aPrefix;
    20     }
    21 };
    23 template <>
    24 class nsDefaultComparator <nsNameSpaceEntry, int32_t> {
    25   public:
    26     bool Equals(const nsNameSpaceEntry& aEntry, const int32_t& aNameSpace) const {
    27       return aEntry.nameSpaceID == aNameSpace;
    28     }
    29 };
    32 /* static */ nsXMLNameSpaceMap*
    33 nsXMLNameSpaceMap::Create(bool aForXML)
    34 {
    35   nsXMLNameSpaceMap *map = new nsXMLNameSpaceMap();
    36   NS_ENSURE_TRUE(map, nullptr);
    38   if (aForXML) {
    39     nsresult rv1 = map->AddPrefix(nsGkAtoms::xmlns,
    40                                   kNameSpaceID_XMLNS);
    41     nsresult rv2 = map->AddPrefix(nsGkAtoms::xml, kNameSpaceID_XML);
    43     if (NS_FAILED(rv1) || NS_FAILED(rv2)) {
    44       delete map;
    45       map = nullptr;
    46     }
    47   }
    49   return map;
    50 }
    52 nsXMLNameSpaceMap::nsXMLNameSpaceMap()
    53   : mNameSpaces(4)
    54 {
    55 }
    57 nsresult
    58 nsXMLNameSpaceMap::AddPrefix(nsIAtom *aPrefix, int32_t aNameSpaceID)
    59 {
    60   if (!mNameSpaces.Contains(aPrefix) && !mNameSpaces.AppendElement(aPrefix)) {
    61     return NS_ERROR_OUT_OF_MEMORY;
    62   }
    63   mNameSpaces[mNameSpaces.IndexOf(aPrefix)].nameSpaceID = aNameSpaceID;
    64   return NS_OK;
    65 }
    67 nsresult
    68 nsXMLNameSpaceMap::AddPrefix(nsIAtom *aPrefix, nsString &aURI)
    69 {
    70   int32_t id;
    71   nsresult rv = nsContentUtils::NameSpaceManager()->RegisterNameSpace(aURI,
    72                                                                       id);
    74   NS_ENSURE_SUCCESS(rv, rv);
    76   return AddPrefix(aPrefix, id);
    77 }
    79 int32_t
    80 nsXMLNameSpaceMap::FindNameSpaceID(nsIAtom *aPrefix) const
    81 {
    82   uint32_t index = mNameSpaces.IndexOf(aPrefix);
    83   if (index != mNameSpaces.NoIndex) {
    84     return mNameSpaces[index].nameSpaceID;
    85   }
    87   // The default mapping for no prefix is no namespace.  If a non-null prefix
    88   // was specified and we didn't find it, we return an error.
    90   return aPrefix ? kNameSpaceID_Unknown : kNameSpaceID_None;
    91 }
    93 nsIAtom*
    94 nsXMLNameSpaceMap::FindPrefix(int32_t aNameSpaceID) const
    95 {
    96   uint32_t index = mNameSpaces.IndexOf(aNameSpaceID);
    97   if (index != mNameSpaces.NoIndex) {
    98     return mNameSpaces[index].prefix;
    99   }
   101   return nullptr;
   102 }
   104 void
   105 nsXMLNameSpaceMap::Clear()
   106 {
   107   mNameSpaces.Clear();
   108 }

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