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- // 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 ASH_SYSTEM_MODEL_VIRTUAL_KEYBOARD_MODEL_H_
- #define ASH_SYSTEM_MODEL_VIRTUAL_KEYBOARD_MODEL_H_
- #include "ash/ash_export.h"
- #include "ash/public/cpp/keyboard/arc/arc_input_method_bounds_tracker.h"
- #include "ash/public/cpp/keyboard/keyboard_controller_observer.h"
- #include "base/observer_list.h"
- namespace ash {
- // Model to store virtual keyboard visibility state.
- class ASH_EXPORT VirtualKeyboardModel
- : public ArcInputMethodBoundsTracker::Observer,
- public KeyboardControllerObserver {
- public:
- class Observer {
- public:
- virtual ~Observer() {}
- virtual void OnVirtualKeyboardVisibilityChanged() = 0;
- };
- VirtualKeyboardModel();
- VirtualKeyboardModel(const VirtualKeyboardModel&) = delete;
- VirtualKeyboardModel& operator=(const VirtualKeyboardModel&) = delete;
- ~VirtualKeyboardModel() override;
- void AddObserver(Observer* observer);
- void RemoveObserver(Observer* observer);
- // Start/stop observing ArcInputMethodBoundsTracker.
- void SetInputMethodBoundsTrackerObserver(
- ArcInputMethodBoundsTracker* input_method_bounds_tracker);
- void RemoveInputMethodBoundsTrackerObserver(
- ArcInputMethodBoundsTracker* input_method_bounds_tracker);
- // ArcInputMethodBoundsTracker::Observer:
- void OnArcInputMethodBoundsChanged(const gfx::Rect& bounds) override;
- // KeyboardControllerObserver:
- void OnKeyboardEnabledChanged(bool is_enabled) override;
- bool arc_keyboard_visible() const { return arc_keyboard_visible_; }
- const gfx::Rect& arc_keyboard_bounds() const { return arc_keyboard_bounds_; }
- private:
- // Sets `arc_keyboard_visible_` depending on last reported ARC input method
- // bounds and the keyboard controller state. Notifies observes of the
- // visibility change if the `arc_keyboard_visible_` value changed..
- void UpdateArcKeyboardVisibility();
- // Whether ARC IME keyboard is currently visible..
- bool arc_keyboard_visible_ = false;
- gfx::Rect arc_keyboard_bounds_;
- base::ObserverList<Observer>::Unchecked observers_;
- };
- } // namespace ash
- #endif // ASH_SYSTEM_MODEL_VIRTUAL_KEYBOARD_MODEL_H_
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