test_focus_change_listener.h 1.3 KB

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  1. // Copyright 2022 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. #ifndef ASH_APP_LIST_TEST_TEST_FOCUS_CHANGE_LISTENER_H_
  5. #define ASH_APP_LIST_TEST_TEST_FOCUS_CHANGE_LISTENER_H_
  6. #include "ui/views/focus/focus_manager.h"
  7. namespace ash {
  8. // A helper class to observe focus changes on the specified focus manager.
  9. class TestFocusChangeListener : public views::FocusChangeListener {
  10. public:
  11. explicit TestFocusChangeListener(views::FocusManager* focus_manager);
  12. TestFocusChangeListener(const TestFocusChangeListener&) = delete;
  13. TestFocusChangeListener& operator=(const TestFocusChangeListener&) = delete;
  14. ~TestFocusChangeListener() override;
  15. // views::FocusChangeListener:
  16. void OnWillChangeFocus(views::View* focused_before,
  17. views::View* focused_now) override {}
  18. void OnDidChangeFocus(views::View* focused_before,
  19. views::View* focused_now) override;
  20. int focus_change_count() { return focus_change_count_; }
  21. private:
  22. views::FocusManager* const focus_manager_;
  23. // Records the count of focus changes.
  24. int focus_change_count_ = 0;
  25. };
  26. } // namespace ash
  27. #endif // ASH_APP_LIST_TEST_TEST_FOCUS_CHANGE_LISTENER_H_