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