LCOV - code coverage report
Current view: directory - content/xslt/src/xslt - txUnknownHandler.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 73 0 0.0 %
Date: 2012-06-02 Functions: 14 0 0.0 %

       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) 2001
      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                 : #include "txUnknownHandler.h"
      40                 : #include "txExecutionState.h"
      41                 : #include "txStringUtils.h"
      42                 : #include "txStylesheet.h"
      43                 : #include "nsGkAtoms.h"
      44                 : 
      45               0 : txUnknownHandler::txUnknownHandler(txExecutionState* aEs)
      46                 :     : mEs(aEs),
      47               0 :       mFlushed(false)
      48                 : {
      49               0 :     MOZ_COUNT_CTOR_INHERITED(txUnknownHandler, txBufferingHandler);
      50               0 : }
      51                 : 
      52               0 : txUnknownHandler::~txUnknownHandler()
      53                 : {
      54               0 :     MOZ_COUNT_DTOR_INHERITED(txUnknownHandler, txBufferingHandler);
      55               0 : }
      56                 : 
      57                 : nsresult
      58               0 : txUnknownHandler::attribute(nsIAtom* aPrefix, nsIAtom* aLocalName,
      59                 :                             nsIAtom* aLowercaseLocalName, PRInt32 aNsID,
      60                 :                             const nsString& aValue)
      61                 : {
      62                 :     return mFlushed ?
      63                 :            mEs->mResultHandler->attribute(aPrefix, aLocalName,
      64               0 :                                           aLowercaseLocalName, aNsID, aValue) :
      65                 :            txBufferingHandler::attribute(aPrefix, aLocalName,
      66               0 :                                          aLowercaseLocalName, aNsID, aValue);
      67                 : }
      68                 : 
      69                 : nsresult
      70               0 : txUnknownHandler::attribute(nsIAtom* aPrefix, const nsSubstring& aLocalName,
      71                 :                             const PRInt32 aNsID, const nsString& aValue)
      72                 : {
      73                 :     return mFlushed ?
      74               0 :            mEs->mResultHandler->attribute(aPrefix, aLocalName, aNsID, aValue) :
      75               0 :            txBufferingHandler::attribute(aPrefix, aLocalName, aNsID, aValue);
      76                 : }
      77                 : 
      78                 : nsresult
      79               0 : txUnknownHandler::characters(const nsSubstring& aData, bool aDOE)
      80                 : {
      81                 :     return mFlushed ?
      82               0 :            mEs->mResultHandler->characters(aData, aDOE) :
      83               0 :            txBufferingHandler::characters(aData, aDOE);
      84                 : }
      85                 : 
      86                 : nsresult
      87               0 : txUnknownHandler::comment(const nsString& aData)
      88                 : {
      89                 :     return mFlushed ?
      90               0 :            mEs->mResultHandler->comment(aData) :
      91               0 :            txBufferingHandler::comment(aData);
      92                 : }
      93                 : 
      94                 : nsresult
      95               0 : txUnknownHandler::endDocument(nsresult aResult)
      96                 : {
      97               0 :     if (!mFlushed) {
      98               0 :         if (NS_FAILED(aResult)) {
      99               0 :             return NS_OK;
     100                 :         }
     101                 : 
     102                 :         // This is an unusual case, no output method has been set and we
     103                 :         // didn't create a document element. Switching to XML output mode
     104                 :         // anyway.
     105                 : 
     106                 :         // Make sure that mEs->mResultHandler == this is true, otherwise we'll
     107                 :         // leak mEs->mResultHandler in createHandlerAndFlush.
     108               0 :         NS_ASSERTION(mEs->mResultHandler == this,
     109                 :                      "We're leaking mEs->mResultHandler.");
     110                 : 
     111               0 :         nsresult rv = createHandlerAndFlush(false, EmptyString(),
     112               0 :                                             kNameSpaceID_None);
     113               0 :         NS_ENSURE_SUCCESS(rv, rv);
     114                 :     }
     115                 : 
     116               0 :     return mEs->mResultHandler->endDocument(aResult);
     117                 : }
     118                 : 
     119                 : nsresult
     120               0 : txUnknownHandler::endElement()
     121                 : {
     122                 :     return mFlushed ?
     123               0 :            mEs->mResultHandler->endElement() :
     124               0 :            txBufferingHandler::endElement();
     125                 : }
     126                 : 
     127                 : nsresult
     128               0 : txUnknownHandler::processingInstruction(const nsString& aTarget,
     129                 :                                         const nsString& aData)
     130                 : {
     131                 :     return mFlushed ?
     132               0 :            mEs->mResultHandler->processingInstruction(aTarget, aData) :
     133               0 :            txBufferingHandler::processingInstruction(aTarget, aData);
     134                 : }
     135                 : 
     136                 : nsresult
     137               0 : txUnknownHandler::startDocument()
     138                 : {
     139                 :     return mFlushed ?
     140               0 :            mEs->mResultHandler->startDocument() :
     141               0 :            txBufferingHandler::startDocument();
     142                 : }
     143                 : 
     144                 : nsresult
     145               0 : txUnknownHandler::startElement(nsIAtom* aPrefix, nsIAtom* aLocalName,
     146                 :                                nsIAtom* aLowercaseLocalName, PRInt32 aNsID)
     147                 : {
     148               0 :     if (!mFlushed) {
     149                 :         // Make sure that mEs->mResultHandler == this is true, otherwise we'll
     150                 :         // leak mEs->mResultHandler in createHandlerAndFlush.
     151               0 :         NS_ASSERTION(mEs->mResultHandler == this,
     152                 :                      "We're leaking mEs->mResultHandler.");
     153                 : 
     154               0 :         nsCOMPtr<nsIAtom> owner;
     155               0 :         if (!aLowercaseLocalName) {
     156               0 :             owner = TX_ToLowerCaseAtom(aLocalName);
     157               0 :             NS_ENSURE_TRUE(owner, NS_ERROR_OUT_OF_MEMORY);
     158                 : 
     159               0 :             aLowercaseLocalName = owner;
     160                 :         }
     161                 : 
     162                 :         bool htmlRoot = aNsID == kNameSpaceID_None && !aPrefix &&
     163               0 :                           aLowercaseLocalName == nsGkAtoms::html;
     164                 : 
     165                 :         // Use aLocalName and not aLowercaseLocalName in case the output
     166                 :         // handler cares about case. For eHTMLOutput the handler will hardcode
     167                 :         // to 'html' anyway.
     168                 :         nsresult rv = createHandlerAndFlush(htmlRoot,
     169               0 :                                             nsDependentAtomString(aLocalName),
     170               0 :                                             aNsID);
     171               0 :         NS_ENSURE_SUCCESS(rv, rv);
     172                 :     }
     173                 : 
     174                 :     return mEs->mResultHandler->startElement(aPrefix, aLocalName,
     175               0 :                                              aLowercaseLocalName, aNsID);
     176                 : }
     177                 : 
     178                 : nsresult
     179               0 : txUnknownHandler::startElement(nsIAtom* aPrefix, const nsSubstring& aLocalName,
     180                 :                                const PRInt32 aNsID)
     181                 : {
     182               0 :     if (!mFlushed) {
     183                 :         // Make sure that mEs->mResultHandler == this is true, otherwise we'll
     184                 :         // leak mEs->mResultHandler in createHandlerAndFlush.
     185               0 :         NS_ASSERTION(mEs->mResultHandler == this,
     186                 :                      "We're leaking mEs->mResultHandler.");
     187                 : 
     188                 :         bool htmlRoot = aNsID == kNameSpaceID_None && !aPrefix &&
     189               0 :                           aLocalName.Equals(NS_LITERAL_STRING("html"),
     190               0 :                                             txCaseInsensitiveStringComparator());
     191               0 :         nsresult rv = createHandlerAndFlush(htmlRoot, aLocalName, aNsID);
     192               0 :         NS_ENSURE_SUCCESS(rv, rv);
     193                 :     }
     194                 : 
     195               0 :     return mEs->mResultHandler->startElement(aPrefix, aLocalName, aNsID);
     196                 : }
     197                 : 
     198               0 : nsresult txUnknownHandler::createHandlerAndFlush(bool aHTMLRoot,
     199                 :                                                  const nsSubstring& aName,
     200                 :                                                  const PRInt32 aNsID)
     201                 : {
     202               0 :     NS_ENSURE_TRUE(mBuffer, NS_ERROR_NOT_INITIALIZED);
     203                 : 
     204               0 :     txOutputFormat format;
     205               0 :     format.merge(*(mEs->mStylesheet->getOutputFormat()));
     206               0 :     if (format.mMethod == eMethodNotSet) {
     207               0 :         format.mMethod = aHTMLRoot ? eHTMLOutput : eXMLOutput;
     208                 :     }
     209                 : 
     210               0 :     nsAutoPtr<txAXMLEventHandler> handler;
     211                 :     nsresult rv = mEs->mOutputHandlerFactory->createHandlerWith(&format, aName,
     212                 :                                                                 aNsID,
     213               0 :                                                                 getter_Transfers(handler));
     214               0 :     NS_ENSURE_SUCCESS(rv, rv);
     215                 : 
     216               0 :     mEs->mOutputHandler = handler;
     217               0 :     mEs->mResultHandler = handler.forget();
     218                 :     // Let the executionstate delete us. We need to stay alive because we might
     219                 :     // need to forward hooks to mEs->mResultHandler if someone is currently
     220                 :     // flushing a buffer to mEs->mResultHandler.
     221               0 :     mEs->mObsoleteHandler = this;
     222                 : 
     223               0 :     mFlushed = true;
     224                 : 
     225                 :     // Let go of out buffer as soon as we're done flushing it, we're not going
     226                 :     // to need it anymore from this point on (all hooks get forwarded to
     227                 :     // mEs->mResultHandler.
     228               0 :     nsAutoPtr<txResultBuffer> buffer(mBuffer);
     229               0 :     return buffer->flushToHandler(mEs->mResultHandler);
     230                 : }

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