Side Slide Gestures for Accessibility

ash/root_window_controller.cc

Index: ash/root_window_controller.cc
diff --git a/ash/root_window_controller.cc b/ash/root_window_controller.cc
index aafe0ba0c61f8dbeea3e3b61770b5191935adab0..d4ae467775c5dc0be01e84c254fcf122ff685441 100644
--- a/ash/root_window_controller.cc
+++ b/ash/root_window_controller.cc
@@ -76,7 +76,7 @@
 #include "ui/wm/public/window_types.h"
 
 #if defined(OS_CHROMEOS)
-#include "ash/system/tray_accessibility.h"
+#include "ash/ash_touch_exploration_manager_chromeos.h"
 #include "ash/wm/boot_splash_screen_chromeos.h"
 #include "ui/chromeos/touch_exploration_controller.h"
 #endif
@@ -261,54 +261,6 @@ class EmptyWindowDelegate : public aura::WindowDelegate {
   DISALLOW_COPY_AND_ASSIGN(EmptyWindowDelegate);
 };
 
-#if defined(OS_CHROMEOS)
-// Responsible for initializing TouchExplorationController when spoken
-// feedback is on.
-class CrosAccessibilityObserver : public AccessibilityObserver {
- public:
-  explicit CrosAccessibilityObserver(
-      RootWindowController* root_window_controller)
-      : root_window_controller_(root_window_controller) {
-    Shell::GetInstance()->system_tray_notifier()->
-        AddAccessibilityObserver(this);
-    UpdateTouchExplorationState();
-  }
-
-  virtual ~CrosAccessibilityObserver() {
-    SystemTrayNotifier* system_tray_notifier =
-        Shell::GetInstance()->system_tray_notifier();
-    if (system_tray_notifier)
-      system_tray_notifier->RemoveAccessibilityObserver(this);
-  }
-
- private:
-  void UpdateTouchExplorationState() {
-    AccessibilityDelegate* delegate =
-        Shell::GetInstance()->accessibility_delegate();
-    bool enabled = delegate->IsSpokenFeedbackEnabled();
-
-    if (enabled && !touch_exploration_controller_.get()) {
-      touch_exploration_controller_.reset(
-          new ui::TouchExplorationController(
-              root_window_controller_->GetRootWindow()));
-    } else if (!enabled) {
-      touch_exploration_controller_.reset();
-    }
-  }
-
-  // Overridden from AccessibilityObserver.
-  virtual void OnAccessibilityModeChanged(
-      AccessibilityNotificationVisibility notify) OVERRIDE {
-    UpdateTouchExplorationState();
-  }
-
-  scoped_ptr<ui::TouchExplorationController> touch_exploration_controller_;
-  RootWindowController* root_window_controller_;
-
-  DISALLOW_COPY_AND_ASSIGN(CrosAccessibilityObserver);
-};
-#endif  // OS_CHROMEOS
-
 }  // namespace
 
 void RootWindowController::CreateForPrimaryDisplay(AshWindowTreeHost* host) {
@@ -396,8 +348,8 @@ void RootWindowController::Shutdown() {
   shell->RemoveShellObserver(this);
 
 #if defined(OS_CHROMEOS)
-  if (cros_accessibility_observer_) {
-    cros_accessibility_observer_.reset();
+  if (touch_exploration_manager_) {
+    touch_exploration_manager_.reset();
   }
 #endif
 
@@ -808,7 +760,8 @@ void RootWindowController::Init(RootWindowType root_window_type,
 #if defined(OS_CHROMEOS)
   if (!CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kAshDisableTouchExplorationMode)) {
-    cros_accessibility_observer_.reset(new CrosAccessibilityObserver(this));
+    touch_exploration_manager_.reset(
+        new AshTouchExplorationManagerChromeOS(this));
   }
 #endif
 }