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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_EXO_PERMISSION_H_
#define COMPONENTS_EXO_PERMISSION_H_
#include "base/time/time.h"
#include "ui/base/class_property.h"
namespace exo {
// An aura::Window property that adds a capability to a window.
class Permission {
public:
enum class Capability {
kActivate,
};
// Creates a permission with a |capability| that never expires.
explicit Permission(Capability capability);
// Create a permission with the given |capability| until |timeout| elapses.
Permission(Capability capability, base::TimeDelta timeout);
// Delete copy and move.
Permission(const Permission& other) = delete;
Permission(Permission&& other) = delete;
Permission& operator=(const Permission& other) = delete;
Permission& operator=(Permission&& other) = delete;
virtual ~Permission();
// Prevent this permission from returning true on subsequent Check()s.
void Revoke();
// Returns true iff this permission was created with the given |capability|
// and is not expired.
bool Check(Capability capability) const;
private:
Capability capability_;
base::Time expiry_;
};
extern const ui::ClassProperty<Permission*>* const kPermissionKey;
} // namespace exo
#endif // COMPONENTS_EXO_PERMISSION_H_
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