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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "modules/nfc/NavigatorNFC.h"
#include "core/frame/Navigator.h"
#include "modules/nfc/NFC.h"
namespace blink {
NavigatorNFC::NavigatorNFC()
{
}
const char* NavigatorNFC::supplementName()
{
return "NavigatorNFC";
}
NavigatorNFC& NavigatorNFC::from(Navigator& navigator)
{
NavigatorNFC* supplement = static_cast<NavigatorNFC*>(HeapSupplement<Navigator>::from(navigator, supplementName()));
if (!supplement) {
supplement = new NavigatorNFC();
provideTo(navigator, supplementName(), supplement);
}
return *supplement;
}
NFC* NavigatorNFC::nfc(Navigator& navigator)
{
NavigatorNFC& self = NavigatorNFC::from(navigator);
if (!self.m_nfc) {
if (!navigator.frame())
return nullptr;
self.m_nfc = NFC::create(navigator.frame());
}
return self.m_nfc.get();
}
DEFINE_TRACE(NavigatorNFC)
{
visitor->trace(m_nfc);
HeapSupplement<Navigator>::trace(visitor);
}
} // namespace blink
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