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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef COMPONENTS_KEYBOARD_LOCK_KEY_HOOK_ACTIVATOR_H_ |
| 6 #define COMPONENTS_KEYBOARD_LOCK_KEY_HOOK_ACTIVATOR_H_ |
| 7 |
| 8 #include <vector> |
| 9 |
| 10 #include "base/callback.h" |
| 11 #include "components/keyboard_lock/key_hook.h" |
| 12 #include "ui/events/keycodes/keyboard_codes.h" |
| 13 |
| 14 namespace keyboard_lock { |
| 15 |
| 16 // An interface to store all registered key codes and register or unregister |
| 17 // them with one Activate() or Deactivate() function call. |
| 18 // The implementation needs to guarantee the thread-safety of Activate() and |
| 19 // Deactivate() functions, which may be executed in both UI thread and |
| 20 // network thread. |
| 21 class KeyHookActivator : public KeyHook { |
| 22 public: |
| 23 KeyHookActivator() = default; |
| 24 ~KeyHookActivator() override = default; |
| 25 |
| 26 // Meaning of |on_result| is same as the one in KeyHook::RegisterKey(). |
| 27 |
| 28 // Enables all registered key codes. |
| 29 virtual void Activate(base::Callback<void(bool)> on_result) = 0; |
| 30 |
| 31 // Disables all registered key codes. |
| 32 virtual void Deactivate(base::Callback<void(bool)> on_result) = 0; |
| 33 }; |
| 34 |
| 35 } // namespace keyboard_lock |
| 36 |
| 37 #endif // COMPONENTS_KEYBOARD_LOCK_KEY_HOOK_ACTIVATOR_H_ |
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