Source/WebCore/bindings/v8/custom/V8HistoryCustom.cpp

/*
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#include "config.h"
#include "V8History.h"

#include "BindingState.h"
#include "ExceptionCode.h"
#include "History.h"
#include "SerializedScriptValue.h"
#include "V8Binding.h"
#include "V8DOMWindow.h"
#include "V8HiddenPropertyName.h"

namespace WebCore {

v8::Handle<v8::Value> V8History::stateAccessorGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
{
    INC_STATS("DOM.History.state");
    History* history = V8History::toNative(info.Holder());

    v8::Handle<v8::Value> value = info.Holder()->GetHiddenValue(V8HiddenPropertyName::state());

    if (!value.IsEmpty() && !history->stateChanged())
        return value;

    SerializedScriptValue* serialized = history->state();
    value = serialized ? serialized->deserialize(0, info.GetIsolate()) : v8::Handle<v8::Value>(v8::Null(info.GetIsolate()));
    info.Holder()->SetHiddenValue(V8HiddenPropertyName::state(), value);

    return value;
}

v8::Handle<v8::Value> V8History::pushStateCallback(const v8::Arguments& args)
{
    bool didThrow = false;
    RefPtr<SerializedScriptValue> historyState = SerializedScriptValue::create(args[0], 0, 0, didThrow, args.GetIsolate());
    if (didThrow)
        return v8::Undefined();

    v8::TryCatch tryCatch;
    String title = toWebCoreStringWithNullOrUndefinedCheck(args[1]);
    if (tryCatch.HasCaught())
        return v8::Undefined();
    String url;
    if (args.Length() > 2) {
        url = toWebCoreStringWithNullOrUndefinedCheck(args[2]);
        if (tryCatch.HasCaught())
            return v8::Undefined();
    }

    ExceptionCode ec = 0;
    History* history = V8History::toNative(args.Holder());
    history->stateObjectAdded(historyState.release(), title, url, History::StateObjectPush, ec);
    args.Holder()->DeleteHiddenValue(V8HiddenPropertyName::state());
    return setDOMException(ec, args.GetIsolate());
}

v8::Handle<v8::Value> V8History::replaceStateCallback(const v8::Arguments& args)
{
    bool didThrow = false;
    RefPtr<SerializedScriptValue> historyState = SerializedScriptValue::create(args[0], 0, 0, didThrow, args.GetIsolate());
    if (didThrow)
        return v8::Undefined();

    v8::TryCatch tryCatch;
    String title = toWebCoreStringWithNullOrUndefinedCheck(args[1]);
    if (tryCatch.HasCaught())
        return v8::Undefined();
    String url;
    if (args.Length() > 2) {
        url = toWebCoreStringWithNullOrUndefinedCheck(args[2]);
        if (tryCatch.HasCaught())
            return v8::Undefined();
    }

    ExceptionCode ec = 0;
    History* history = V8History::toNative(args.Holder());
    history->stateObjectAdded(historyState.release(), title, url, History::StateObjectReplace, ec);
    args.Holder()->DeleteHiddenValue(V8HiddenPropertyName::state());
    return setDOMException(ec, args.GetIsolate());
}

bool V8History::indexedSecurityCheck(v8::Local<v8::Object> host, uint32_t index, v8::AccessType type, v8::Local<v8::Value>)
{
    History* history = V8History::toNative(host);
    return BindingSecurity::shouldAllowAccessToFrame(BindingState::instance(), history->frame(), DoNotReportSecurityError);
}

bool V8History::namedSecurityCheck(v8::Local<v8::Object> host, v8::Local<v8::Value> key, v8::AccessType type, v8::Local<v8::Value>)
{
    History* history = V8History::toNative(host);
    return BindingSecurity::shouldAllowAccessToFrame(BindingState::instance(), history->frame(), DoNotReportSecurityError);
}

} // namespace WebCore