| // 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 <memory> |
| |
| #include "ash/ash_export.h" |
| #include "ash/keyboard/arc/arc_input_method_surface_manager.h" |
| #include "base/macros.h" |
| #include "base/observer_list.h" |
| |
| namespace ash { |
| |
| class ArcInputMethodSurfaceManager; |
| |
| // Model to store virtual keyboard visibility state. |
| class ASH_EXPORT VirtualKeyboardModel |
| : public ArcInputMethodSurfaceManager::Observer { |
| public: |
| class Observer { |
| public: |
| virtual ~Observer() {} |
| |
| virtual void OnVirtualKeyboardVisibilityChanged() = 0; |
| }; |
| |
| VirtualKeyboardModel(); |
| ~VirtualKeyboardModel() override; |
| |
| void AddObserver(Observer* observer); |
| void RemoveObserver(Observer* observer); |
| |
| // Start/stop observing ArcInputMethodSurfaceManager. |
| void SetInputMethodSurfaceManagerObserver( |
| ArcInputMethodSurfaceManager* input_method_surface_manager); |
| void RemoveInputMethodSurfaceManagerObserver( |
| ArcInputMethodSurfaceManager* input_method_surface_manager); |
| |
| // ArcInputMethodSurfaceManager::Observer: |
| void OnArcInputMethodSurfaceBoundsChanged(const gfx::Rect& bounds) override; |
| |
| bool visible() const { return visible_; } |
| |
| private: |
| void NotifyChanged(); |
| |
| // The visibility of virtual keyboard. |
| bool visible_ = false; |
| |
| base::ObserverList<Observer>::Unchecked observers_; |
| |
| DISALLOW_COPY_AND_ASSIGN(VirtualKeyboardModel); |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_SYSTEM_MODEL_VIRTUAL_KEYBOARD_MODEL_H_ |