Bug 1371217 - Top Sites, Bookmarks & History are not centered; r=Andr…

…eiLazar

Differential Revision: https://phabricator.services.mozilla.com/D28833

--HG--
extra : moz-landing-system : lando

mobile/android/base/java/org/mozilla/gecko/home/TabMenuStrip.java

@@ -5,6 +5,7 @@
 
 package org.mozilla.gecko.home;
 
+import android.content.res.Configuration;
 import android.support.v4.content.ContextCompat;
 import org.mozilla.gecko.R;
 
@@ -15,6 +16,7 @@
 import android.graphics.Paint;
 import android.graphics.drawable.Drawable;
 import android.util.AttributeSet;
+import android.view.Gravity;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewTreeObserver;
@@ -40,6 +42,7 @@ public class TabMenuStrip extends HorizontalScrollView
 
     private final Paint shadowPaint;
     private final int shadowSize;
+    private int stripPosition;
 
     public interface OnTitleClickListener {
         void onTitleClicked(int index);
@@ -58,6 +61,7 @@ public TabMenuStrip(Context context, AttributeSet attrs) {
 
         layout = new TabMenuStripLayout(context, attrs);
         addView(layout, LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
+        layout.setGravity(Gravity.CENTER);
 
         shadowSize = res.getDimensionPixelSize(R.dimen.tabs_strip_shadow_size);
 
@@ -86,6 +90,7 @@ public void removeAllPagerViews() {
 
     @Override
     public void onPageSelected(final int position) {
+        stripPosition = position;
         layout.onPageSelected(position);
     }
 
@@ -124,4 +129,9 @@ public void onPageScrolled(int position, float positionOffset, int positionOffse
     public void setOnTitleClickListener(OnTitleClickListener onTitleClickListener) {
         layout.setOnTitleClickListener(onTitleClickListener);
     }
+
+    @Override
+    protected void onConfigurationChanged(Configuration newConfig) {
+        layout.onPageSelected(stripPosition);
+    }
 }