Make SystemUI RTL aware

- mirror vibrate and silent statusbar icons
- add code for updating icons when Locale is changed

See bug #5429822 UI should be mirrored for RTL locales (Arabic, Hebrew, farsi)

Change-Id: Ib7125d7f01ed8d1b8d63c2a9b119eb173efcf49f

packages/SystemUI/src/com/android/systemui/statusbar/StatusBarIconView.java

@@ -118,12 +118,7 @@ public class StatusBarIconView extends AnimatedImageView {
         mIcon = icon.clone();
         setContentDescription(icon.contentDescription);
         if (!iconEquals) {
-            Drawable drawable = getIcon(icon);
-            if (drawable == null) {
-                Slog.w(TAG, "No icon for slot " + mSlot);
-                return false;
-            }
-            setImageDrawable(drawable);
+            if (!updateDrawable(false /* no clear */)) return false;
         }
         if (!levelEquals) {
             setImageLevel(icon.iconLevel);
@@ -149,6 +144,23 @@ public class StatusBarIconView extends AnimatedImageView {
         return true;
     }
 
+    public void updateDrawable() {
+        updateDrawable(true /* with clear */);
+    }
+
+    private boolean updateDrawable(boolean withClear) {
+        Drawable drawable = getIcon(mIcon);
+        if (drawable == null) {
+            Slog.w(TAG, "No icon for slot " + mSlot);
+            return false;
+        }
+        if (withClear) {
+            setImageDrawable(null);
+        }
+        setImageDrawable(drawable);
+        return true;
+    }
+
     private Drawable getIcon(StatusBarIcon icon) {
         return getIcon(getContext(), icon);
     }

packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java

@@ -837,6 +837,16 @@ public class PhoneStatusBar extends BaseStatusBar {
         mWindowManager.addView(mIntruderAlertView, lp);
     }
 
+    public void refreshAllStatusBarIcons() {
+        final int count = mStatusIcons.getChildCount();
+        for (int n = 0; n < count; n++) {
+            View child = mStatusIcons.getChildAt(n);
+            if (child instanceof StatusBarIconView) {
+                ((StatusBarIconView) child).updateDrawable();
+            }
+        }
+    }
+
     public void addIcon(String slot, int index, int viewIndex, StatusBarIcon icon) {
         if (SPEW) Slog.d(TAG, "addIcon slot=" + slot + " index=" + index + " viewIndex=" + viewIndex
                 + " icon=" + icon);
@@ -984,6 +994,8 @@ public class PhoneStatusBar extends BaseStatusBar {
             mNotificationButton.setImageDrawable(null);
             mNotificationButton.setImageResource(R.drawable.ic_notifications);
         }
+
+        refreshAllStatusBarIcons();
     }
 
     private void updateShowSearchHoldoff() {