| // 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 ASH_ACCELERATORS_ACCELERATOR_HISTORY_IMPL_H_ |
| #define ASH_ACCELERATORS_ACCELERATOR_HISTORY_IMPL_H_ |
| |
| #include <optional> |
| #include <set> |
| |
| #include "ash/ash_export.h" |
| #include "ash/public/cpp/accelerators.h" |
| #include "ui/base/accelerators/accelerator.h" |
| #include "ui/events/event_handler.h" |
| |
| namespace ash { |
| |
| // Keeps track of the system-wide current and the last key accelerators. |
| class ASH_EXPORT AcceleratorHistoryImpl : public AcceleratorHistory, |
| public ui::EventHandler { |
| public: |
| AcceleratorHistoryImpl(); |
| AcceleratorHistoryImpl(const AcceleratorHistoryImpl&) = delete; |
| AcceleratorHistoryImpl& operator=(const AcceleratorHistoryImpl&) = delete; |
| ~AcceleratorHistoryImpl() override; |
| |
| // Returns the most recent recorded accelerator. |
| const ui::Accelerator& current_accelerator() const { |
| return current_accelerator_; |
| } |
| |
| // Returns the most recent previously recorded accelerator that is different |
| // than the current. |
| const ui::Accelerator& previous_accelerator() const { |
| return previous_accelerator_; |
| } |
| |
| const std::set<ui::KeyboardCode>& currently_pressed_keys() const { |
| return currently_pressed_keys_; |
| } |
| |
| // ui::EventHandler: |
| void OnKeyEvent(ui::KeyEvent* event) override; |
| void OnMouseEvent(ui::MouseEvent* event) override; |
| |
| // AcceleratorHistory: |
| void StoreCurrentAccelerator(const ui::Accelerator& accelerator) override; |
| |
| void InterruptCurrentAccelerator(); |
| |
| private: |
| ui::Accelerator current_accelerator_; |
| ui::Accelerator previous_accelerator_; |
| |
| std::set<ui::KeyboardCode> currently_pressed_keys_; |
| |
| // The most recently logged KeyboardCode, saved to prevent spammy logs. |
| std::optional<ui::KeyboardCode> last_logged_key_code_; |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_ACCELERATORS_ACCELERATOR_HISTORY_IMPL_H_ |