LCOV - code coverage report
Current view: directory - content/xslt/src/xpath - txXPathTreeWalker.h (source / functions) Found Hit Coverage
Test: app.info Lines: 68 7 10.3 %
Date: 2012-06-02 Functions: 21 5 23.8 %

       1                 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is TransforMiiX XSLT processor code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2003
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   Peter Van der Beken <peterv@propagandism.org>
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      27                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : #ifndef txXPathTreeWalker_h__
      40                 : #define txXPathTreeWalker_h__
      41                 : 
      42                 : #include "txCore.h"
      43                 : #include "txXPathNode.h"
      44                 : #include "nsINodeInfo.h"
      45                 : #include "nsTArray.h"
      46                 : 
      47                 : class nsIAtom;
      48                 : class nsIDOMDocument;
      49                 : 
      50                 : class txUint32Array : public nsTArray<PRUint32>
      51              84 : {
      52                 : public:
      53               0 :     bool AppendValue(PRUint32 aValue)
      54                 :     {
      55               0 :         return AppendElement(aValue) != nsnull;
      56                 :     }
      57               0 :     bool RemoveValueAt(PRUint32 aIndex)
      58                 :     {
      59               0 :         if (aIndex < Length()) {
      60               0 :             RemoveElementAt(aIndex);
      61                 :         }
      62               0 :         return true;
      63                 :     }
      64               0 :     PRUint32 ValueAt(PRUint32 aIndex) const
      65                 :     {
      66               0 :         return (aIndex < Length()) ? ElementAt(aIndex) : 0;
      67                 :     }
      68                 : };
      69                 : 
      70                 : class txXPathTreeWalker
      71              42 : {
      72                 : public:
      73                 :     txXPathTreeWalker(const txXPathTreeWalker& aOther);
      74                 :     explicit txXPathTreeWalker(const txXPathNode& aNode);
      75                 : 
      76                 :     bool getAttr(nsIAtom* aLocalName, PRInt32 aNSID, nsAString& aValue) const;
      77                 :     PRInt32 getNamespaceID() const;
      78                 :     PRUint16 getNodeType() const;
      79                 :     void appendNodeValue(nsAString& aResult) const;
      80                 :     void getNodeName(nsAString& aName) const;
      81                 : 
      82                 :     void moveTo(const txXPathTreeWalker& aWalker);
      83                 : 
      84                 :     void moveToRoot();
      85                 :     bool moveToParent();
      86                 :     bool moveToElementById(const nsAString& aID);
      87                 :     bool moveToFirstAttribute();
      88                 :     bool moveToNextAttribute();
      89                 :     bool moveToNamedAttribute(nsIAtom* aLocalName, PRInt32 aNSID);
      90                 :     bool moveToFirstChild();
      91                 :     bool moveToLastChild();
      92                 :     bool moveToNextSibling();
      93                 :     bool moveToPreviousSibling();
      94                 : 
      95                 :     bool isOnNode(const txXPathNode& aNode) const;
      96                 : 
      97                 :     const txXPathNode& getCurrentPosition() const;
      98                 : 
      99                 : private:
     100                 :     txXPathNode mPosition;
     101                 : 
     102                 :     bool moveToValidAttribute(PRUint32 aStartIndex);
     103                 :     bool moveToSibling(PRInt32 aDir);
     104                 : 
     105                 :     PRUint32 mCurrentIndex;
     106                 :     txUint32Array mDescendants;
     107                 : };
     108                 : 
     109                 : class txXPathNodeUtils
     110                 : {
     111                 : public:
     112                 :     static bool getAttr(const txXPathNode& aNode, nsIAtom* aLocalName,
     113                 :                           PRInt32 aNSID, nsAString& aValue);
     114                 :     static already_AddRefed<nsIAtom> getLocalName(const txXPathNode& aNode);
     115                 :     static nsIAtom* getPrefix(const txXPathNode& aNode);
     116                 :     static void getLocalName(const txXPathNode& aNode, nsAString& aLocalName);
     117                 :     static void getNodeName(const txXPathNode& aNode,
     118                 :                             nsAString& aName);
     119                 :     static PRInt32 getNamespaceID(const txXPathNode& aNode);
     120                 :     static void getNamespaceURI(const txXPathNode& aNode, nsAString& aURI);
     121                 :     static PRUint16 getNodeType(const txXPathNode& aNode);
     122                 :     static void appendNodeValue(const txXPathNode& aNode, nsAString& aResult);
     123                 :     static bool isWhitespace(const txXPathNode& aNode);
     124                 :     static txXPathNode* getOwnerDocument(const txXPathNode& aNode);
     125                 :     static PRInt32 getUniqueIdentifier(const txXPathNode& aNode);
     126                 :     static nsresult getXSLTId(const txXPathNode& aNode,
     127                 :                               const txXPathNode& aBase, nsAString& aResult);
     128                 :     static void release(txXPathNode* aNode);
     129                 :     static void getBaseURI(const txXPathNode& aNode, nsAString& aURI);
     130                 :     static PRIntn comparePosition(const txXPathNode& aNode,
     131                 :                                   const txXPathNode& aOtherNode);
     132                 :     static bool localNameEquals(const txXPathNode& aNode,
     133                 :                                   nsIAtom* aLocalName);
     134                 :     static bool isRoot(const txXPathNode& aNode);
     135                 :     static bool isElement(const txXPathNode& aNode);
     136                 :     static bool isAttribute(const txXPathNode& aNode);
     137                 :     static bool isProcessingInstruction(const txXPathNode& aNode);
     138                 :     static bool isComment(const txXPathNode& aNode);
     139                 :     static bool isText(const txXPathNode& aNode);
     140               0 :     static inline bool isHTMLElementInHTMLDocument(const txXPathNode& aNode)
     141                 :     {
     142               0 :       if (!aNode.isContent()) {
     143               0 :         return false;
     144                 :       }
     145               0 :       nsIContent* content = aNode.Content();
     146               0 :       return content->IsHTML() && content->IsInHTMLDocument();
     147                 :     }
     148                 : };
     149                 : 
     150                 : class txXPathNativeNode
     151                 : {
     152                 : public:
     153                 :     static txXPathNode* createXPathNode(nsIDOMNode* aNode,
     154                 :                                         bool aKeepRootAlive = false);
     155                 :     static txXPathNode* createXPathNode(nsIContent* aContent,
     156                 :                                         bool aKeepRootAlive = false);
     157                 :     static txXPathNode* createXPathNode(nsIDOMDocument* aDocument);
     158                 :     static nsresult getNode(const txXPathNode& aNode, nsIDOMNode** aResult);
     159                 :     static nsIContent* getContent(const txXPathNode& aNode);
     160                 :     static nsIDocument* getDocument(const txXPathNode& aNode);
     161                 :     static void addRef(const txXPathNode& aNode)
     162                 :     {
     163                 :         NS_ADDREF(aNode.mNode);
     164                 :     }
     165                 :     static void release(const txXPathNode& aNode)
     166                 :     {
     167                 :         nsINode *node = aNode.mNode;
     168                 :         NS_RELEASE(node);
     169                 :     }
     170                 : };
     171                 : 
     172                 : inline const txXPathNode&
     173              84 : txXPathTreeWalker::getCurrentPosition() const
     174                 : {
     175              84 :     return mPosition;
     176                 : }
     177                 : 
     178                 : inline bool
     179               0 : txXPathTreeWalker::getAttr(nsIAtom* aLocalName, PRInt32 aNSID,
     180                 :                            nsAString& aValue) const
     181                 : {
     182               0 :     return txXPathNodeUtils::getAttr(mPosition, aLocalName, aNSID, aValue);
     183                 : }
     184                 : 
     185                 : inline PRInt32
     186                 : txXPathTreeWalker::getNamespaceID() const
     187                 : {
     188                 :     return txXPathNodeUtils::getNamespaceID(mPosition);
     189                 : }
     190                 : 
     191                 : inline void
     192               0 : txXPathTreeWalker::appendNodeValue(nsAString& aResult) const
     193                 : {
     194               0 :     txXPathNodeUtils::appendNodeValue(mPosition, aResult);
     195               0 : }
     196                 : 
     197                 : inline void
     198                 : txXPathTreeWalker::getNodeName(nsAString& aName) const
     199                 : {
     200                 :     txXPathNodeUtils::getNodeName(mPosition, aName);
     201                 : }
     202                 : 
     203                 : inline void
     204               0 : txXPathTreeWalker::moveTo(const txXPathTreeWalker& aWalker)
     205                 : {
     206               0 :     nsINode *root = nsnull;
     207               0 :     if (mPosition.mRefCountRoot) {
     208               0 :         root = mPosition.Root();
     209                 :     }
     210               0 :     mPosition.mIndex = aWalker.mPosition.mIndex;
     211               0 :     mPosition.mRefCountRoot = aWalker.mPosition.mRefCountRoot;
     212               0 :     mPosition.mNode = aWalker.mPosition.mNode;
     213               0 :     nsINode *newRoot = nsnull;
     214               0 :     if (mPosition.mRefCountRoot) {
     215               0 :         newRoot = mPosition.Root();
     216                 :     }
     217               0 :     if (root != newRoot) {
     218               0 :         NS_IF_ADDREF(newRoot);
     219               0 :         NS_IF_RELEASE(root);
     220                 :     }
     221                 : 
     222               0 :     mCurrentIndex = aWalker.mCurrentIndex;
     223               0 :     mDescendants.Clear();
     224               0 : }
     225                 : 
     226                 : inline bool
     227               0 : txXPathTreeWalker::isOnNode(const txXPathNode& aNode) const
     228                 : {
     229               0 :     return (mPosition == aNode);
     230                 : }
     231                 : 
     232                 : /* static */
     233                 : inline PRInt32
     234               0 : txXPathNodeUtils::getUniqueIdentifier(const txXPathNode& aNode)
     235                 : {
     236               0 :     NS_PRECONDITION(!aNode.isAttribute(),
     237                 :                     "Not implemented for attributes.");
     238               0 :     return NS_PTR_TO_INT32(aNode.mNode);
     239                 : }
     240                 : 
     241                 : /* static */
     242                 : inline void
     243               0 : txXPathNodeUtils::release(txXPathNode* aNode)
     244                 : {
     245               0 :     NS_RELEASE(aNode->mNode);
     246               0 : }
     247                 : 
     248                 : /* static */
     249                 : inline bool
     250               0 : txXPathNodeUtils::localNameEquals(const txXPathNode& aNode,
     251                 :                                   nsIAtom* aLocalName)
     252                 : {
     253               0 :     if (aNode.isContent() &&
     254               0 :         aNode.Content()->IsElement()) {
     255               0 :         return aNode.Content()->NodeInfo()->Equals(aLocalName);
     256                 :     }
     257                 : 
     258               0 :     nsCOMPtr<nsIAtom> localName = txXPathNodeUtils::getLocalName(aNode);
     259                 : 
     260               0 :     return localName == aLocalName;
     261                 : }
     262                 : 
     263                 : /* static */
     264                 : inline bool
     265               0 : txXPathNodeUtils::isRoot(const txXPathNode& aNode)
     266                 : {
     267               0 :     return !aNode.isAttribute() && !aNode.mNode->GetNodeParent();
     268                 : }
     269                 : 
     270                 : /* static */
     271                 : inline bool
     272               0 : txXPathNodeUtils::isElement(const txXPathNode& aNode)
     273                 : {
     274               0 :     return aNode.isContent() &&
     275               0 :            aNode.Content()->IsElement();
     276                 : }
     277                 : 
     278                 : 
     279                 : /* static */
     280                 : inline bool
     281               0 : txXPathNodeUtils::isAttribute(const txXPathNode& aNode)
     282                 : {
     283               0 :     return aNode.isAttribute();
     284                 : }
     285                 : 
     286                 : /* static */
     287                 : inline bool
     288               0 : txXPathNodeUtils::isProcessingInstruction(const txXPathNode& aNode)
     289                 : {
     290               0 :     return aNode.isContent() &&
     291               0 :            aNode.Content()->IsNodeOfType(nsINode::ePROCESSING_INSTRUCTION);
     292                 : }
     293                 : 
     294                 : /* static */
     295                 : inline bool
     296               0 : txXPathNodeUtils::isComment(const txXPathNode& aNode)
     297                 : {
     298               0 :     return aNode.isContent() &&
     299               0 :            aNode.Content()->IsNodeOfType(nsINode::eCOMMENT);
     300                 : }
     301                 : 
     302                 : /* static */
     303                 : inline bool
     304              42 : txXPathNodeUtils::isText(const txXPathNode& aNode)
     305                 : {
     306              42 :     return aNode.isContent() &&
     307              42 :            aNode.Content()->IsNodeOfType(nsINode::eTEXT);
     308                 : }
     309                 : 
     310                 : #endif /* txXPathTreeWalker_h__ */

Generated by: LCOV version 1.7