The Tor Browser / file comparison
comparison: content/base/public/nsNameSpaceManager.h
content/base/public/nsNameSpaceManager.h
- branch
- TOR_BUG_9701
- changeset 9
- a63d609f5ebe
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| -1:000000000000 | 0:e62e8a0c0e9d |
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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 #ifndef nsNameSpaceManager_h___ | |
| 7 #define nsNameSpaceManager_h___ | |
| 8 | |
| 9 #include "nsDataHashtable.h" | |
| 10 #include "nsTArray.h" | |
| 11 | |
| 12 #include "mozilla/StaticPtr.h" | |
| 13 | |
| 14 class nsIAtom; | |
| 15 class nsAString; | |
| 16 | |
| 17 #define kNameSpaceID_Unknown -1 | |
| 18 // 0 is special at C++, so use a static const int32_t for | |
| 19 // kNameSpaceID_None to keep if from being cast to pointers | |
| 20 // Note that the XBL cache assumes (and asserts) that it can treat a | |
| 21 // single-byte value higher than kNameSpaceID_LastBuiltin specially. | |
| 22 static const int32_t kNameSpaceID_None = 0; | |
| 23 #define kNameSpaceID_XMLNS 1 // not really a namespace, but it needs to play the game | |
| 24 #define kNameSpaceID_XML 2 | |
| 25 #define kNameSpaceID_XHTML 3 | |
| 26 #define kNameSpaceID_XLink 4 | |
| 27 #define kNameSpaceID_XSLT 5 | |
| 28 #define kNameSpaceID_XBL 6 | |
| 29 #define kNameSpaceID_MathML 7 | |
| 30 #define kNameSpaceID_RDF 8 | |
| 31 #define kNameSpaceID_XUL 9 | |
| 32 #define kNameSpaceID_SVG 10 | |
| 33 #define kNameSpaceID_LastBuiltin 10 // last 'built-in' namespace | |
| 34 | |
| 35 class nsNameSpaceKey : public PLDHashEntryHdr | |
| 36 { | |
| 37 public: | |
| 38 typedef const nsAString* KeyType; | |
| 39 typedef const nsAString* KeyTypePointer; | |
| 40 | |
| 41 nsNameSpaceKey(KeyTypePointer aKey) : mKey(aKey) | |
| 42 { | |
| 43 } | |
| 44 nsNameSpaceKey(const nsNameSpaceKey& toCopy) : mKey(toCopy.mKey) | |
| 45 { | |
| 46 } | |
| 47 | |
| 48 KeyType GetKey() const | |
| 49 { | |
| 50 return mKey; | |
| 51 } | |
| 52 bool KeyEquals(KeyType aKey) const | |
| 53 { | |
| 54 return mKey->Equals(*aKey); | |
| 55 } | |
| 56 | |
| 57 static KeyTypePointer KeyToPointer(KeyType aKey) | |
| 58 { | |
| 59 return aKey; | |
| 60 } | |
| 61 static PLDHashNumber HashKey(KeyTypePointer aKey) { | |
| 62 return mozilla::HashString(*aKey); | |
| 63 } | |
| 64 | |
| 65 enum { | |
| 66 ALLOW_MEMMOVE = true | |
| 67 }; | |
| 68 | |
| 69 private: | |
| 70 const nsAString* mKey; | |
| 71 }; | |
| 72 | |
| 73 /** | |
| 74 * The Name Space Manager tracks the association between a NameSpace | |
| 75 * URI and the int32_t runtime id. Mappings between NameSpaces and | |
| 76 * NameSpace prefixes are managed by nsINameSpaces. | |
| 77 * | |
| 78 * All NameSpace URIs are stored in a global table so that IDs are | |
| 79 * consistent accross the app. NameSpace IDs are only consistent at runtime | |
| 80 * ie: they are not guaranteed to be consistent accross app sessions. | |
| 81 * | |
| 82 * The nsNameSpaceManager needs to have a live reference for as long as | |
| 83 * the NameSpace IDs are needed. | |
| 84 * | |
| 85 */ | |
| 86 | |
| 87 class nsNameSpaceManager | |
| 88 { | |
| 89 public: | |
| 90 virtual ~nsNameSpaceManager() {} | |
| 91 | |
| 92 virtual nsresult RegisterNameSpace(const nsAString& aURI, | |
| 93 int32_t& aNameSpaceID); | |
| 94 | |
| 95 virtual nsresult GetNameSpaceURI(int32_t aNameSpaceID, nsAString& aURI); | |
| 96 virtual int32_t GetNameSpaceID(const nsAString& aURI); | |
| 97 | |
| 98 virtual bool HasElementCreator(int32_t aNameSpaceID); | |
| 99 | |
| 100 static nsNameSpaceManager* GetInstance(); | |
| 101 private: | |
| 102 bool Init(); | |
| 103 nsresult AddNameSpace(const nsAString& aURI, const int32_t aNameSpaceID); | |
| 104 | |
| 105 nsDataHashtable<nsNameSpaceKey,int32_t> mURIToIDTable; | |
| 106 nsTArray< nsAutoPtr<nsString> > mURIArray; | |
| 107 | |
| 108 static mozilla::StaticAutoPtr<nsNameSpaceManager> sInstance; | |
| 109 }; | |
| 110 | |
| 111 #endif // nsNameSpaceManager_h___ |
