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// Copyright 2019 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.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_XR_NAVIGATOR_XR_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_XR_NAVIGATOR_XR_H_
#include "base/macros.h"
#include "third_party/blink/renderer/core/frame/navigator.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/platform/supplementable.h"
namespace blink {
class Document;
class XRSystem;
class MODULES_EXPORT NavigatorXR final : public GarbageCollected<NavigatorXR>,
public Supplement<Navigator> {
public:
static const char kSupplementName[];
static NavigatorXR* From(Document&);
static NavigatorXR& From(Navigator&);
// Allows us to check whether |Document| has a NavigatorXR, without triggering
// its lazy creation.
static bool AlreadyExists(Document&);
explicit NavigatorXR(Navigator&);
static XRSystem* xr(Navigator&);
XRSystem* xr();
void Trace(Visitor*) const override;
private:
Document* GetDocument();
Member<XRSystem> xr_;
// Gates metrics collection once per local DOM window frame.
bool did_log_navigator_xr_ = false;
DISALLOW_COPY_AND_ASSIGN(NavigatorXR);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_XR_NAVIGATOR_XR_H_
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