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comparison: content/base/src/nsXMLNameSpaceMap.cpp
content/base/src/nsXMLNameSpaceMap.cpp
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| -1:000000000000 | 0:7247f735dc71 |
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| 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 class for keeping track of prefix-to-namespace-id mappings | |
| 8 */ | |
| 9 | |
| 10 #include "nsXMLNameSpaceMap.h" | |
| 11 #include "nsContentUtils.h" | |
| 12 #include "nsGkAtoms.h" | |
| 13 #include "nsNameSpaceManager.h" | |
| 14 | |
| 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 }; | |
| 22 | |
| 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 }; | |
| 30 | |
| 31 | |
| 32 /* static */ nsXMLNameSpaceMap* | |
| 33 nsXMLNameSpaceMap::Create(bool aForXML) | |
| 34 { | |
| 35 nsXMLNameSpaceMap *map = new nsXMLNameSpaceMap(); | |
| 36 NS_ENSURE_TRUE(map, nullptr); | |
| 37 | |
| 38 if (aForXML) { | |
| 39 nsresult rv1 = map->AddPrefix(nsGkAtoms::xmlns, | |
| 40 kNameSpaceID_XMLNS); | |
| 41 nsresult rv2 = map->AddPrefix(nsGkAtoms::xml, kNameSpaceID_XML); | |
| 42 | |
| 43 if (NS_FAILED(rv1) || NS_FAILED(rv2)) { | |
| 44 delete map; | |
| 45 map = nullptr; | |
| 46 } | |
| 47 } | |
| 48 | |
| 49 return map; | |
| 50 } | |
| 51 | |
| 52 nsXMLNameSpaceMap::nsXMLNameSpaceMap() | |
| 53 : mNameSpaces(4) | |
| 54 { | |
| 55 } | |
| 56 | |
| 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 } | |
| 66 | |
| 67 nsresult | |
| 68 nsXMLNameSpaceMap::AddPrefix(nsIAtom *aPrefix, nsString &aURI) | |
| 69 { | |
| 70 int32_t id; | |
| 71 nsresult rv = nsContentUtils::NameSpaceManager()->RegisterNameSpace(aURI, | |
| 72 id); | |
| 73 | |
| 74 NS_ENSURE_SUCCESS(rv, rv); | |
| 75 | |
| 76 return AddPrefix(aPrefix, id); | |
| 77 } | |
| 78 | |
| 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 } | |
| 86 | |
| 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. | |
| 89 | |
| 90 return aPrefix ? kNameSpaceID_Unknown : kNameSpaceID_None; | |
| 91 } | |
| 92 | |
| 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 } | |
| 100 | |
| 101 return nullptr; | |
| 102 } | |
| 103 | |
| 104 void | |
| 105 nsXMLNameSpaceMap::Clear() | |
| 106 { | |
| 107 mNameSpaces.Clear(); | |
| 108 } |
