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      1 /*
      2  * Copyright (C) 2009 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "XMLDocumentParserScope.h"
     28 
     29 namespace WebCore {
     30 
     31 CachedResourceLoader* XMLDocumentParserScope::currentCachedResourceLoader = 0;
     32 
     33 XMLDocumentParserScope::XMLDocumentParserScope(CachedResourceLoader* cachedResourceLoader)
     34     : m_oldCachedResourceLoader(currentCachedResourceLoader)
     35 #if ENABLE(XSLT)
     36     , m_oldGenericErrorFunc(xmlGenericError)
     37     , m_oldStructuredErrorFunc(xmlStructuredError)
     38     , m_oldErrorContext(xmlGenericErrorContext)
     39 #endif
     40 {
     41     currentCachedResourceLoader = cachedResourceLoader;
     42 }
     43 
     44 #if ENABLE(XSLT)
     45 XMLDocumentParserScope::XMLDocumentParserScope(CachedResourceLoader* cachedResourceLoader, xmlGenericErrorFunc genericErrorFunc, xmlStructuredErrorFunc structuredErrorFunc, void* errorContext)
     46     : m_oldCachedResourceLoader(currentCachedResourceLoader)
     47     , m_oldGenericErrorFunc(xmlGenericError)
     48     , m_oldStructuredErrorFunc(xmlStructuredError)
     49     , m_oldErrorContext(xmlGenericErrorContext)
     50 {
     51     currentCachedResourceLoader = cachedResourceLoader;
     52     if (genericErrorFunc)
     53         xmlSetGenericErrorFunc(errorContext, genericErrorFunc);
     54     if (structuredErrorFunc)
     55         xmlSetStructuredErrorFunc(errorContext, structuredErrorFunc);
     56 }
     57 #endif
     58 
     59 XMLDocumentParserScope::~XMLDocumentParserScope()
     60 {
     61     currentCachedResourceLoader = m_oldCachedResourceLoader;
     62 #if ENABLE(XSLT)
     63     xmlSetGenericErrorFunc(m_oldErrorContext, m_oldGenericErrorFunc);
     64     xmlSetStructuredErrorFunc(m_oldErrorContext, m_oldStructuredErrorFunc);
     65 #endif
     66 }
     67 
     68 }
     69