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// Copyright 2014 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 "config.h"
#include "modules/screen_orientation/ScreenScreenOrientation.h"
#include "bindings/core/v8/ScriptState.h"
#include "core/frame/Screen.h"
#include "modules/screen_orientation/ScreenOrientation.h"
namespace blink {
// static
ScreenScreenOrientation& ScreenScreenOrientation::from(Screen& screen)
{
ScreenScreenOrientation* supplement = static_cast<ScreenScreenOrientation*>(WillBeHeapSupplement<Screen>::from(screen, supplementName()));
if (!supplement) {
supplement = new ScreenScreenOrientation();
provideTo(screen, supplementName(), adoptPtrWillBeNoop(supplement));
}
return *supplement;
}
ScreenScreenOrientation::~ScreenScreenOrientation()
{
}
// static
ScreenOrientation* ScreenScreenOrientation::orientation(ScriptState* state, Screen& screen)
{
ScreenScreenOrientation& self = ScreenScreenOrientation::from(screen);
if (!screen.frame())
return 0;
if (!self.m_orientation)
self.m_orientation = ScreenOrientation::create(screen.frame());
return self.m_orientation.get();
}
const char* ScreenScreenOrientation::supplementName()
{
return "ScreenScreenOrientation";
}
void ScreenScreenOrientation::trace(Visitor* visitor)
{
visitor->trace(m_orientation);
WillBeHeapSupplement<Screen>::trace(visitor);
}
} // namespace blink
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