dom/xslt/xpath/txXPathNode.h@b8a032363ba2 (annotated)
dom/xslt/xpath/txXPathNode.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef txXPathNode_h__ |
| michael@0 | 7 | #define txXPathNode_h__ |
| michael@0 | 8 | |
| michael@0 | 9 | #include "nsAutoPtr.h" |
| michael@0 | 10 | #include "nsIContent.h" |
| michael@0 | 11 | #include "nsIDocument.h" |
| michael@0 | 12 | #include "nsIDOMNode.h" |
| michael@0 | 13 | #include "nsNameSpaceManager.h" |
| michael@0 | 14 | #include "nsContentUtils.h" // For NameSpaceManager(). |
| michael@0 | 15 | |
| michael@0 | 16 | typedef nsIDOMNode txXPathNodeType; |
| michael@0 | 17 | |
| michael@0 | 18 | class txXPathNode |
| michael@0 | 19 | { |
| michael@0 | 20 | public: |
| michael@0 | 21 | bool operator==(const txXPathNode& aNode) const; |
| michael@0 | 22 | bool operator!=(const txXPathNode& aNode) const |
| michael@0 | 23 | { |
| michael@0 | 24 | return !(*this == aNode); |
| michael@0 | 25 | } |
| michael@0 | 26 | ~txXPathNode(); |
| michael@0 | 27 | |
| michael@0 | 28 | private: |
| michael@0 | 29 | friend class txNodeSet; |
| michael@0 | 30 | friend class txXPathNativeNode; |
| michael@0 | 31 | friend class txXPathNodeUtils; |
| michael@0 | 32 | friend class txXPathTreeWalker; |
| michael@0 | 33 | |
| michael@0 | 34 | txXPathNode(const txXPathNode& aNode); |
| michael@0 | 35 | |
| michael@0 | 36 | txXPathNode(nsIDocument* aDocument) : mNode(aDocument), |
| michael@0 | 37 | mRefCountRoot(0), |
| michael@0 | 38 | mIndex(eDocument) |
| michael@0 | 39 | { |
| michael@0 | 40 | MOZ_COUNT_CTOR(txXPathNode); |
| michael@0 | 41 | } |
| michael@0 | 42 | txXPathNode(nsINode *aNode, uint32_t aIndex, nsINode *aRoot) |
| michael@0 | 43 | : mNode(aNode), |
| michael@0 | 44 | mRefCountRoot(aRoot ? 1 : 0), |
| michael@0 | 45 | mIndex(aIndex) |
| michael@0 | 46 | { |
| michael@0 | 47 | MOZ_COUNT_CTOR(txXPathNode); |
| michael@0 | 48 | if (aRoot) { |
| michael@0 | 49 | NS_ADDREF(aRoot); |
| michael@0 | 50 | } |
| michael@0 | 51 | } |
| michael@0 | 52 | |
| michael@0 | 53 | static nsINode *RootOf(nsINode *aNode) |
| michael@0 | 54 | { |
| michael@0 | 55 | nsINode *ancestor, *root = aNode; |
| michael@0 | 56 | while ((ancestor = root->GetParentNode())) { |
| michael@0 | 57 | root = ancestor; |
| michael@0 | 58 | } |
| michael@0 | 59 | return root; |
| michael@0 | 60 | } |
| michael@0 | 61 | nsINode *Root() const |
| michael@0 | 62 | { |
| michael@0 | 63 | return RootOf(mNode); |
| michael@0 | 64 | } |
| michael@0 | 65 | nsINode *GetRootToAddRef() const |
| michael@0 | 66 | { |
| michael@0 | 67 | return mRefCountRoot ? Root() : nullptr; |
| michael@0 | 68 | } |
| michael@0 | 69 | |
| michael@0 | 70 | bool isDocument() const |
| michael@0 | 71 | { |
| michael@0 | 72 | return mIndex == eDocument; |
| michael@0 | 73 | } |
| michael@0 | 74 | bool isContent() const |
| michael@0 | 75 | { |
| michael@0 | 76 | return mIndex == eContent; |
| michael@0 | 77 | } |
| michael@0 | 78 | bool isAttribute() const |
| michael@0 | 79 | { |
| michael@0 | 80 | return mIndex != eDocument && mIndex != eContent; |
| michael@0 | 81 | } |
| michael@0 | 82 | |
| michael@0 | 83 | nsIContent* Content() const |
| michael@0 | 84 | { |
| michael@0 | 85 | NS_ASSERTION(isContent() || isAttribute(), "wrong type"); |
| michael@0 | 86 | return static_cast<nsIContent*>(mNode); |
| michael@0 | 87 | } |
| michael@0 | 88 | nsIDocument* Document() const |
| michael@0 | 89 | { |
| michael@0 | 90 | NS_ASSERTION(isDocument(), "wrong type"); |
| michael@0 | 91 | return static_cast<nsIDocument*>(mNode); |
| michael@0 | 92 | } |
| michael@0 | 93 | |
| michael@0 | 94 | enum PositionType |
| michael@0 | 95 | { |
| michael@0 | 96 | eDocument = (1 << 30), |
| michael@0 | 97 | eContent = eDocument - 1 |
| michael@0 | 98 | }; |
| michael@0 | 99 | |
| michael@0 | 100 | nsINode* mNode; |
| michael@0 | 101 | uint32_t mRefCountRoot : 1; |
| michael@0 | 102 | uint32_t mIndex : 31; |
| michael@0 | 103 | }; |
| michael@0 | 104 | |
| michael@0 | 105 | class txNamespaceManager |
| michael@0 | 106 | { |
| michael@0 | 107 | public: |
| michael@0 | 108 | static int32_t getNamespaceID(const nsAString& aNamespaceURI); |
| michael@0 | 109 | static nsresult getNamespaceURI(const int32_t aID, nsAString& aResult); |
| michael@0 | 110 | }; |
| michael@0 | 111 | |
| michael@0 | 112 | /* static */ |
| michael@0 | 113 | inline int32_t |
| michael@0 | 114 | txNamespaceManager::getNamespaceID(const nsAString& aNamespaceURI) |
| michael@0 | 115 | { |
| michael@0 | 116 | int32_t namespaceID = kNameSpaceID_Unknown; |
| michael@0 | 117 | nsContentUtils::NameSpaceManager()-> |
| michael@0 | 118 | RegisterNameSpace(aNamespaceURI, namespaceID); |
| michael@0 | 119 | return namespaceID; |
| michael@0 | 120 | } |
| michael@0 | 121 | |
| michael@0 | 122 | /* static */ |
| michael@0 | 123 | inline nsresult |
| michael@0 | 124 | txNamespaceManager::getNamespaceURI(const int32_t aID, nsAString& aResult) |
| michael@0 | 125 | { |
| michael@0 | 126 | return nsContentUtils::NameSpaceManager()-> |
| michael@0 | 127 | GetNameSpaceURI(aID, aResult); |
| michael@0 | 128 | } |
| michael@0 | 129 | |
| michael@0 | 130 | inline bool |
| michael@0 | 131 | txXPathNode::operator==(const txXPathNode& aNode) const |
| michael@0 | 132 | { |
| michael@0 | 133 | return mIndex == aNode.mIndex && mNode == aNode.mNode; |
| michael@0 | 134 | } |
| michael@0 | 135 | |
| michael@0 | 136 | #endif /* txXPathNode_h__ */ |
