| // Copyright 2018 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 UI_EVENTS_KEYBOARD_HOOK_BASE_H_ |
| #define UI_EVENTS_KEYBOARD_HOOK_BASE_H_ |
| |
| #include <memory> |
| |
| #include "base/macros.h" |
| #include "ui/events/keyboard_hook.h" |
| |
| namespace ui { |
| |
| enum class DomCode; |
| class KeyEvent; |
| |
| class KeyboardHookBase : public KeyboardHook { |
| public: |
| KeyboardHookBase(base::Optional<base::flat_set<DomCode>> dom_codes, |
| KeyEventCallback callback); |
| ~KeyboardHookBase() override; |
| |
| // KeyboardHook implementation. |
| bool IsKeyLocked(DomCode dom_code) const override; |
| |
| protected: |
| // Indicates whether |dom_code| should be intercepted by the keyboard hook. |
| bool ShouldCaptureKeyEvent(DomCode dom_code) const; |
| |
| // Forwards the key event using |key_event_callback_|. |
| // |event| is owned by the calling method and will live until this method |
| // returns. |
| void ForwardCapturedKeyEvent(KeyEvent* event); |
| |
| const base::Optional<base::flat_set<DomCode>>& dom_codes() { |
| return dom_codes_; |
| } |
| |
| private: |
| // Used to forward key events. |
| KeyEventCallback key_event_callback_; |
| |
| // The set of keys which should be intercepted by the keyboard hook. |
| base::Optional<base::flat_set<DomCode>> dom_codes_; |
| |
| DISALLOW_COPY_AND_ASSIGN(KeyboardHookBase); |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_EVENTS_KEYBOARD_HOOK_BASE_H_ |