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// Copyright 2021 The Chromium Authors
// 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_XR_EXIT_FULLSCREEN_OBSERVER_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_XR_XR_EXIT_FULLSCREEN_OBSERVER_H_
#include "base/functional/callback.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/dom/events/event.h"
#include "third_party/blink/renderer/core/dom/events/native_event_listener.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
namespace blink {
// Native event listener used when waiting for fullscreen mode to fully exit.
// Typically used to either clear the way for starting fullscreen mode for AR
// when exiting an existing fullscreen, or for ensuring that fullscreen has
// exited when ending an AR session.
class XrExitFullscreenObserver : public NativeEventListener {
public:
XrExitFullscreenObserver();
XrExitFullscreenObserver(const XrExitFullscreenObserver&) = delete;
XrExitFullscreenObserver& operator=(const XrExitFullscreenObserver&) = delete;
~XrExitFullscreenObserver() override;
// NativeEventListener
void Invoke(ExecutionContext*, Event*) override;
void ExitFullscreen(Document* doc, base::OnceClosure on_exited);
void Trace(Visitor*) const override;
private:
Member<Document> document_;
base::OnceClosure on_exited_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_XR_XR_EXIT_FULLSCREEN_OBSERVER_H_
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