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// Copyright (c) 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * 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.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "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 THE COPYRIGHT
// OWNER 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 "bindings/v8/custom/V8CustomXPathNSResolver.h"
#include "bindings/v8/ScriptController.h"
#include "bindings/v8/V8Binding.h"
#include "bindings/v8/V8Utilities.h"
#include "core/dom/ExecutionContext.h"
#include "core/inspector/ScriptCallStack.h"
#include "core/frame/DOMWindow.h"
#include "core/frame/Frame.h"
#include "core/page/Page.h"
#include "core/page/PageConsole.h"
#include "wtf/text/WTFString.h"
namespace WebCore {
PassRefPtr<V8CustomXPathNSResolver> V8CustomXPathNSResolver::create(v8::Handle<v8::Object> resolver, v8::Isolate* isolate)
{
return adoptRef(new V8CustomXPathNSResolver(resolver, isolate));
}
V8CustomXPathNSResolver::V8CustomXPathNSResolver(v8::Handle<v8::Object> resolver, v8::Isolate* isolate)
: m_resolver(resolver)
, m_isolate(isolate)
{
}
V8CustomXPathNSResolver::~V8CustomXPathNSResolver()
{
}
AtomicString V8CustomXPathNSResolver::lookupNamespaceURI(const String& prefix)
{
v8::Handle<v8::Function> lookupNamespaceURIFunc;
v8::Handle<v8::String> lookupNamespaceURIName = v8AtomicString(m_isolate, "lookupNamespaceURI");
// Check if the resolver has a function property named lookupNamespaceURI.
if (m_resolver->Has(lookupNamespaceURIName)) {
v8::Handle<v8::Value> lookupNamespaceURI = m_resolver->Get(lookupNamespaceURIName);
if (lookupNamespaceURI->IsFunction())
lookupNamespaceURIFunc = v8::Handle<v8::Function>::Cast(lookupNamespaceURI);
}
if (lookupNamespaceURIFunc.IsEmpty() && !m_resolver->IsFunction()) {
Frame* frame = activeDOMWindow()->frame();
if (frame && frame->page())
frame->page()->console().addMessage(JSMessageSource, ErrorMessageLevel, "XPathNSResolver does not have a lookupNamespaceURI method.");
return nullAtom;
}
// Catch exceptions from calling the namespace resolver.
v8::TryCatch tryCatch;
tryCatch.SetVerbose(true); // Print exceptions to console.
const int argc = 1;
v8::Handle<v8::Value> argv[argc] = { v8String(m_isolate, prefix) };
v8::Handle<v8::Function> function = lookupNamespaceURIFunc.IsEmpty() ? v8::Handle<v8::Function>::Cast(m_resolver) : lookupNamespaceURIFunc;
v8::Handle<v8::Value> retval = ScriptController::callFunction(activeExecutionContext(), function, m_resolver, argc, argv, m_isolate);
// Eat exceptions from namespace resolver and return an empty string. This will most likely cause NamespaceError.
if (tryCatch.HasCaught())
return nullAtom;
V8TRYCATCH_FOR_V8STRINGRESOURCE_RETURN(V8StringResource<WithNullCheck>, returnString, retval, nullAtom);
return returnString;
}
} // namespace WebCore
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