1 /*
2 * Copyright (C) 2007 Alexey Proskuryakov (ap@nypop.com)
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 "JSCustomXPathNSResolver.h"
28
29 #if ENABLE(XPATH)
30
31 #include "Document.h"
32 #include "ExceptionCode.h"
33 #include "Frame.h"
34 #include "JSDOMWindowCustom.h"
35 #include "ScriptController.h"
36 #include <runtime/JSLock.h>
37
38 namespace WebCore {
39
40 using namespace JSC;
41
create(JSC::ExecState * exec,JSC::JSValue value)42 PassRefPtr<JSCustomXPathNSResolver> JSCustomXPathNSResolver::create(JSC::ExecState* exec, JSC::JSValue value)
43 {
44 if (value.isUndefinedOrNull())
45 return 0;
46
47 JSObject* resolverObject = value.getObject();
48 if (!resolverObject) {
49 setDOMException(exec, TYPE_MISMATCH_ERR);
50 return 0;
51 }
52
53 return adoptRef(new JSCustomXPathNSResolver(resolverObject, asJSDOMWindow(exec->dynamicGlobalObject())));
54 }
55
JSCustomXPathNSResolver(JSObject * customResolver,JSDOMWindow * globalObject)56 JSCustomXPathNSResolver::JSCustomXPathNSResolver(JSObject* customResolver, JSDOMWindow* globalObject)
57 : m_customResolver(customResolver)
58 , m_globalObject(globalObject)
59 {
60 }
61
~JSCustomXPathNSResolver()62 JSCustomXPathNSResolver::~JSCustomXPathNSResolver()
63 {
64 }
65
lookupNamespaceURI(const String & prefix)66 String JSCustomXPathNSResolver::lookupNamespaceURI(const String& prefix)
67 {
68 ASSERT(m_customResolver);
69
70 JSLock lock(SilenceAssertionsOnly);
71
72 ExecState* exec = m_globalObject->globalExec();
73
74 JSValue function = m_customResolver->get(exec, Identifier(exec, "lookupNamespaceURI"));
75 CallData callData;
76 CallType callType = getCallData(function, callData);
77 if (callType == CallTypeNone) {
78 callType = m_customResolver->getCallData(callData);
79 if (callType == CallTypeNone) {
80 // FIXME: Pass actual line number and source URL.
81 m_globalObject->impl()->console()->addMessage(JSMessageSource, LogMessageType, ErrorMessageLevel, "XPathNSResolver does not have a lookupNamespaceURI method.", 0, String());
82 return String();
83 }
84 function = m_customResolver;
85 }
86
87 RefPtr<JSCustomXPathNSResolver> selfProtector(this);
88
89 MarkedArgumentBuffer args;
90 args.append(jsString(exec, prefix));
91
92 m_globalObject->globalData().timeoutChecker.start();
93 JSValue retval = JSC::call(exec, function, callType, callData, m_customResolver, args);
94 m_globalObject->globalData().timeoutChecker.stop();
95
96 String result;
97 if (exec->hadException())
98 reportCurrentException(exec);
99 else {
100 if (!retval.isUndefinedOrNull())
101 result = ustringToString(retval.toString(exec));
102 }
103
104 Document::updateStyleForAllDocuments();
105
106 return result;
107 }
108
109 } // namespace WebCore
110
111 #endif // ENABLE(XPATH)
112