1 /* 2 * Copyright (C) 2013 Google, Inc. 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 COMPUTER, 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 COMPUTER, 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 "core/xml/DocumentXPathEvaluator.h" 28 29 #include "bindings/core/v8/ExceptionState.h" 30 #include "core/xml/XPathExpression.h" 31 #include "core/xml/XPathResult.h" 32 33 namespace blink { 34 35 DocumentXPathEvaluator::DocumentXPathEvaluator() 36 { 37 } 38 39 DocumentXPathEvaluator& DocumentXPathEvaluator::from(DocumentSupplementable& document) 40 { 41 DocumentXPathEvaluator* cache = static_cast<DocumentXPathEvaluator*>(DocumentSupplement::from(document, supplementName())); 42 if (!cache) { 43 cache = new DocumentXPathEvaluator(); 44 DocumentSupplement::provideTo(document, supplementName(), adoptPtrWillBeNoop(cache)); 45 } 46 return *cache; 47 } 48 49 PassRefPtrWillBeRawPtr<XPathExpression> DocumentXPathEvaluator::createExpression(DocumentSupplementable& document, 50 const String& expression, PassRefPtrWillBeRawPtr<XPathNSResolver> resolver, ExceptionState& exceptionState) 51 { 52 DocumentXPathEvaluator& suplement = from(document); 53 if (!suplement.m_xpathEvaluator) 54 suplement.m_xpathEvaluator = XPathEvaluator::create(); 55 return suplement.m_xpathEvaluator->createExpression(expression, resolver, exceptionState); 56 } 57 58 PassRefPtrWillBeRawPtr<XPathNSResolver> DocumentXPathEvaluator::createNSResolver(DocumentSupplementable& document, Node* nodeResolver) 59 { 60 DocumentXPathEvaluator& suplement = from(document); 61 if (!suplement.m_xpathEvaluator) 62 suplement.m_xpathEvaluator = XPathEvaluator::create(); 63 return suplement.m_xpathEvaluator->createNSResolver(nodeResolver); 64 } 65 66 PassRefPtrWillBeRawPtr<XPathResult> DocumentXPathEvaluator::evaluate(DocumentSupplementable& document, const String& expression, 67 Node* contextNode, PassRefPtrWillBeRawPtr<XPathNSResolver> resolver, unsigned short type, 68 XPathResult* result, ExceptionState& exceptionState) 69 { 70 DocumentXPathEvaluator& suplement = from(document); 71 if (!suplement.m_xpathEvaluator) 72 suplement.m_xpathEvaluator = XPathEvaluator::create(); 73 return suplement.m_xpathEvaluator->evaluate(expression, contextNode, resolver, type, result, exceptionState); 74 } 75 76 void DocumentXPathEvaluator::trace(Visitor* visitor) 77 { 78 visitor->trace(m_xpathEvaluator); 79 DocumentSupplement::trace(visitor); 80 } 81 82 } // namespace blink 83
