Merge "Lock screen should be kept on while it is touch explored."

policy/src/com/android/internal/policy/impl/LockPatternKeyguardView.java

@@ -44,8 +44,10 @@ import android.text.TextUtils;
 import android.util.Log;
 import android.util.Slog;
 import android.view.KeyEvent;
+import android.view.MotionEvent;
 import android.view.View;
 import android.view.WindowManager;
+import android.view.accessibility.AccessibilityManager;
 
 import java.io.IOException;
 
@@ -509,6 +511,18 @@ public class LockPatternKeyguardView extends KeyguardViewBase {
         super.onDetachedFromWindow();
     }
 
+    @Override
+    protected boolean dispatchHoverEvent(MotionEvent event) {
+        // Do not let the screen to get locked while the user is disabled and touch
+        // exploring. A blind user will need significantly more time to find and
+        // interact with the lock screen views.
+        AccessibilityManager accessibilityManager = AccessibilityManager.getInstance(mContext);
+        if (accessibilityManager.isEnabled() && accessibilityManager.isTouchExplorationEnabled()) {
+            getCallback().pokeWakelock();
+        }
+        return super.dispatchHoverEvent(event);
+    }
+
     @Override
     public void wakeWhenReadyTq(int keyCode) {
         if (DEBUG) Log.d(TAG, "onWakeKey");