diff -r 000000000000 -r 4f2f89ce4247 WebCore/bindings/js/JSCustomXPathNSResolver.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bindings/js/JSCustomXPathNSResolver.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2007 Alexey Proskuryakov (ap@nypop.com)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#include "config.h"
+#include "JSCustomXPathNSResolver.h"
+
+#if ENABLE(XPATH)
+
+#include "Document.h"
+#include "ExceptionCode.h"
+#include "Frame.h"
+#include "JSDOMWindowCustom.h"
+#include "ScriptController.h"
+#include <runtime/JSLock.h>
+
+namespace WebCore {
+
+using namespace JSC;
+
+PassRefPtr<JSCustomXPathNSResolver> JSCustomXPathNSResolver::create(JSC::ExecState* exec, JSC::JSValue value)
+{
+    if (value.isUndefinedOrNull())
+        return 0;
+
+    JSObject* resolverObject = value.getObject();
+    if (!resolverObject) {
+        setDOMException(exec, TYPE_MISMATCH_ERR);
+        return 0;
+    }
+
+    return adoptRef(new JSCustomXPathNSResolver(resolverObject, asJSDOMWindow(exec->dynamicGlobalObject())));
+}
+
+JSCustomXPathNSResolver::JSCustomXPathNSResolver(JSObject* customResolver, JSDOMWindow* globalObject)
+    : m_customResolver(customResolver)
+    , m_globalObject(globalObject)
+{
+}
+
+JSCustomXPathNSResolver::~JSCustomXPathNSResolver()
+{
+}
+
+String JSCustomXPathNSResolver::lookupNamespaceURI(const String& prefix)
+{
+    ASSERT(m_customResolver);
+
+    JSLock lock(SilenceAssertionsOnly);
+
+    ExecState* exec = m_globalObject->globalExec();
+        
+    JSValue function = m_customResolver->get(exec, Identifier(exec, "lookupNamespaceURI"));
+    CallData callData;
+    CallType callType = getCallData(function, callData);
+    if (callType == CallTypeNone) {
+        callType = m_customResolver->getCallData(callData);
+        if (callType == CallTypeNone) {
+            // FIXME: Pass actual line number and source URL.
+            m_globalObject->impl()->console()->addMessage(JSMessageSource, LogMessageType, ErrorMessageLevel, "XPathNSResolver does not have a lookupNamespaceURI method.", 0, String());
+            return String();
+        }
+        function = m_customResolver;
+    }
+
+    RefPtr<JSCustomXPathNSResolver> selfProtector(this);
+
+    MarkedArgumentBuffer args;
+    args.append(jsString(exec, prefix));
+
+    m_globalObject->globalData()->timeoutChecker.start();
+    JSValue retval = JSC::call(exec, function, callType, callData, m_customResolver, args);
+    m_globalObject->globalData()->timeoutChecker.stop();
+
+    String result;
+    if (exec->hadException())
+        reportCurrentException(exec);
+    else {
+        if (!retval.isUndefinedOrNull())
+            result = ustringToString(retval.toString(exec));
+    }
+
+    Document::updateStyleForAllDocuments();
+
+    return result;
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(XPATH)