Side Slide Gestures for Accessibility

ash/ash_touch_exploration_manager_chromeos.h

+// 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/root_window_controller.h"

[James Cook, 2014/07/15 19:58:10]

not needed?

[lisayin, 2014/07/15 21:46:45]

Done.

+#include "ash/system/tray_accessibility.h"
+#include "chromeos/audio/cras_audio_handler.h"

[James Cook, 2014/07/15 19:58:11]

not needed?

[lisayin, 2014/07/15 21:46:45]

Done.

+#include "ui/chromeos/touch_exploration_controller.h"
+
+

[James Cook, 2014/07/15 19:58:10]

one blank line

[lisayin, 2014/07/15 21:46:45]

Done.

+namespace chromeos {
+class CrasAudioHandler;
+}
+
+namespace ash {
+class RootWindowController;
+
+// Responsible for initializing TouchExplorationController when spoken
+// feedback is on.
+class AshTouchExplorationManagerChromeOS
+    : public ash::AccessibilityObserver,
+      public ui::TouchExplorationControllerDelegate {
+ public:
+  explicit AshTouchExplorationManagerChromeOS(
+      RootWindowController* root_window_controller);
+  virtual ~AshTouchExplorationManagerChromeOS();
+
+  // AccessibilityObserver overrides:

[James Cook, 2014/07/15 19:58:11]

hooray, this looks nice

+  virtual void OnAccessibilityModeChanged(
+      AccessibilityNotificationVisibility notify) OVERRIDE;
+
+  // TouchExplorationControllerDelegate overrides:
+  virtual void const PlayVolumeAdjustSound() OVERRIDE;

[James Cook, 2014/07/15 19:58:10]

virtual void PlayVolumeAdjustSound() const OVERRIDE

(const goes last)

Or make it not const, since playing a sound has a side effect

[lisayin, 2014/07/15 21:46:45]

Done.

+  virtual void SetOutputLevel(float volume) 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(AshTouchExplorationManagerChromeOS);
+};
+
+}  // namespace ash
+
+#endif  // ASH_TOUCH_EXPLORATION_MANAGER_CHROMEOS_H_