| // 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_ACCESSIBILITY_TOUCH_EXPLORATION_MANAGER_H_ |
| #define ASH_ACCESSIBILITY_TOUCH_EXPLORATION_MANAGER_H_ |
| |
| #include <memory> |
| |
| #include "ash/accessibility/accessibility_observer.h" |
| #include "ash/accessibility/touch_accessibility_enabler.h" |
| #include "ash/accessibility/touch_exploration_controller.h" |
| #include "ash/ash_export.h" |
| #include "ash/shell_observer.h" |
| #include "base/macros.h" |
| #include "base/scoped_observer.h" |
| #include "ui/display/display_observer.h" |
| #include "ui/keyboard/keyboard_controller_observer.h" |
| #include "ui/wm/public/activation_change_observer.h" |
| |
| namespace chromeos { |
| class CrasAudioHandler; |
| } |
| |
| namespace ash { |
| class RootWindowController; |
| |
| // Responsible for initializing TouchExplorationController when spoken feedback |
| // is on. Implements TouchExplorationControllerDelegate which allows touch |
| // gestures to manipulate the system. |
| // |
| // TODO(jamescook): Move the TouchExplorationControllerDelegate methods into |
| // TouchExplorationController. I suspect the delegate was added to support ash |
| // on Windows, which we don't ship anymore. |
| class ASH_EXPORT TouchExplorationManager |
| : public AccessibilityObserver, |
| public aura::WindowObserver, |
| public TouchExplorationControllerDelegate, |
| public TouchAccessibilityEnablerDelegate, |
| public display::DisplayObserver, |
| public ::wm::ActivationChangeObserver, |
| public keyboard::KeyboardControllerObserver, |
| public ShellObserver { |
| public: |
| explicit TouchExplorationManager( |
| RootWindowController* root_window_controller); |
| ~TouchExplorationManager() override; |
| |
| // AccessibilityObserver overrides: |
| void OnAccessibilityStatusChanged() override; |
| |
| // aura::WindowObserver overrides: |
| void OnWindowPropertyChanged(aura::Window* window, |
| const void* key, |
| intptr_t old) override; |
| |
| // TouchExplorationControllerDelegate overrides: |
| void SetOutputLevel(int volume) override; |
| void SilenceSpokenFeedback() override; |
| void PlayVolumeAdjustEarcon() override; |
| void PlayPassthroughEarcon() override; |
| void PlayExitScreenEarcon() override; |
| void PlayEnterScreenEarcon() override; |
| void HandleAccessibilityGesture(ax::mojom::Gesture gesture) override; |
| |
| // display::DisplayObserver overrides: |
| void OnDisplayMetricsChanged(const display::Display& display, |
| uint32_t changed_metrics) override; |
| |
| // TouchAccessibilityEnablerDelegate overrides: |
| void OnTwoFingerTouchStart() override; |
| void OnTwoFingerTouchStop() override; |
| void PlaySpokenFeedbackToggleCountdown(int tick_count) override; |
| void PlayTouchTypeEarcon() override; |
| void ToggleSpokenFeedback() override; |
| |
| // wm::ActivationChangeObserver overrides: |
| void OnWindowActivated( |
| ::wm::ActivationChangeObserver::ActivationReason reason, |
| aura::Window* gained_active, |
| aura::Window* lost_active) override; |
| |
| // Update the touch exploration controller so that synthesized touch |
| // events are anchored at this point. |
| void SetTouchAccessibilityAnchorPoint(const gfx::Point& anchor_point); |
| |
| private: |
| // keyboard::KeyboardControllerObserver overrides: |
| void OnKeyboardVisibleBoundsChanged(const gfx::Rect& new_bounds) override; |
| void OnKeyboardEnabledChanged(bool is_enabled) override; |
| |
| void UpdateTouchExplorationState(); |
| bool VolumeAdjustSoundEnabled(); |
| |
| std::unique_ptr<TouchExplorationController> touch_exploration_controller_; |
| std::unique_ptr<TouchAccessibilityEnabler> touch_accessibility_enabler_; |
| RootWindowController* root_window_controller_; |
| chromeos::CrasAudioHandler* audio_handler_; |
| aura::Window* observing_window_; |
| |
| DISALLOW_COPY_AND_ASSIGN(TouchExplorationManager); |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_TOUCH_EXPLORATION_MANAGER_CHROMEOS_H_ |