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// Copyright 2014 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_TOUCH_EXPLORATION_MANAGER_CHROMEOS_H_
#define ASH_TOUCH_EXPLORATION_MANAGER_CHROMEOS_H_
#include "ash/ash_export.h"
#include "ash/system/tray_accessibility.h"
#include "ui/chromeos/touch_exploration_controller.h"
namespace chromeos {
class CrasAudioHandler;
}
namespace ash {
class RootWindowController;
// Responsible for initializing TouchExplorationController when spoken
// feedback is on for ChromeOS only. This class implements
// TouchExplorationControllerDelegate which allows touch gestures to manipulate
// the system.
class ASH_EXPORT AshTouchExplorationManager
: public ash::AccessibilityObserver,
public ui::TouchExplorationControllerDelegate {
public:
explicit AshTouchExplorationManager(
RootWindowController* root_window_controller);
~AshTouchExplorationManager() override;
// AccessibilityObserver overrides:
void OnAccessibilityModeChanged(
ui::AccessibilityNotificationVisibility notify) override;
// TouchExplorationControllerDelegate overrides:
void SetOutputLevel(int volume) override;
void SilenceSpokenFeedback() override;
void PlayVolumeAdjustEarcon() override;
void PlayPassthroughEarcon() override;
void PlayExitScreenEarcon() override;
void PlayEnterScreenEarcon() override;
private:
void UpdateTouchExplorationState();
bool VolumeAdjustSoundEnabled();
scoped_ptr<ui::TouchExplorationController> touch_exploration_controller_;
RootWindowController* root_window_controller_;
chromeos::CrasAudioHandler* audio_handler_;
DISALLOW_COPY_AND_ASSIGN(AshTouchExplorationManager);
};
} // namespace ash
#endif // ASH_TOUCH_EXPLORATION_MANAGER_CHROMEOS_H_
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