| // 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_ |