1 // Copyright (c) 2008, Google Inc.
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5 // modification, are permitted provided that the following conditions are
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16 // this software without specific prior written permission.
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31 #include "bindings/v8/custom/V8CustomXPathNSResolver.h"
33 #include "bindings/v8/ScriptController.h"
34 #include "bindings/v8/V8Binding.h"
35 #include "core/dom/ExecutionContext.h"
36 #include "core/frame/DOMWindow.h"
37 #include "core/frame/FrameConsole.h"
38 #include "core/frame/FrameHost.h"
39 #include "core/frame/LocalFrame.h"
40 #include "core/inspector/ScriptCallStack.h"
41 #include "wtf/text/WTFString.h"
45 PassRefPtrWillBeRawPtr<V8CustomXPathNSResolver> V8CustomXPathNSResolver::create(v8::Handle<v8::Object> resolver, v8::Isolate* isolate)
47 return adoptRefWillBeNoop(new V8CustomXPathNSResolver(resolver, isolate));
50 V8CustomXPathNSResolver::V8CustomXPathNSResolver(v8::Handle<v8::Object> resolver, v8::Isolate* isolate)
51 : m_resolver(resolver)
56 V8CustomXPathNSResolver::~V8CustomXPathNSResolver()
60 AtomicString V8CustomXPathNSResolver::lookupNamespaceURI(const String& prefix)
62 v8::Handle<v8::Function> lookupNamespaceURIFunc;
63 v8::Handle<v8::String> lookupNamespaceURIName = v8AtomicString(m_isolate, "lookupNamespaceURI");
65 // Check if the resolver has a function property named lookupNamespaceURI.
66 if (m_resolver->Has(lookupNamespaceURIName)) {
67 v8::Handle<v8::Value> lookupNamespaceURI = m_resolver->Get(lookupNamespaceURIName);
68 if (lookupNamespaceURI->IsFunction())
69 lookupNamespaceURIFunc = v8::Handle<v8::Function>::Cast(lookupNamespaceURI);
72 if (lookupNamespaceURIFunc.IsEmpty() && !m_resolver->IsFunction()) {
73 LocalFrame* frame = callingDOMWindow(m_isolate)->frame();
74 if (frame && frame->host())
75 frame->console().addMessage(JSMessageSource, ErrorMessageLevel, "XPathNSResolver does not have a lookupNamespaceURI method.");
79 // Catch exceptions from calling the namespace resolver.
80 v8::TryCatch tryCatch;
81 tryCatch.SetVerbose(true); // Print exceptions to console.
84 v8::Handle<v8::Value> argv[argc] = { v8String(m_isolate, prefix) };
85 v8::Handle<v8::Function> function = lookupNamespaceURIFunc.IsEmpty() ? v8::Handle<v8::Function>::Cast(m_resolver) : lookupNamespaceURIFunc;
87 v8::Handle<v8::Value> retval = ScriptController::callFunction(callingExecutionContext(m_isolate), function, m_resolver, argc, argv, m_isolate);
89 // Eat exceptions from namespace resolver and return an empty string. This will most likely cause NamespaceError.
90 if (tryCatch.HasCaught())
93 TOSTRING_DEFAULT(V8StringResource<WithNullCheck>, returnString, retval, nullAtom);
97 void V8CustomXPathNSResolver::trace(Visitor* visitor)
99 XPathNSResolver::trace(visitor);
102 } // namespace WebCore