1 /* 2 * Copyright (C) 2007 Alexey Proskuryakov (ap (at) 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 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 56 JSCustomXPathNSResolver::JSCustomXPathNSResolver(JSObject* customResolver, JSDOMWindow* globalObject) 57 : m_customResolver(customResolver) 58 , m_globalObject(globalObject) 59 { 60 } 61 62 JSCustomXPathNSResolver::~JSCustomXPathNSResolver() 63 { 64 } 65 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 = function.getCallData(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 = retval.toString(exec); 102 } 103 104 Document::updateStyleForAllDocuments(); 105 106 return result; 107 } 108 109 } // namespace WebCore 110 111 #endif // ENABLE(XPATH) 112