Bug 1046200 - Introduce NewTabletUI utility API (r=mcomella)

mobile/android/base/NewTabletUI.java

@@ -0,0 +1,32 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.gecko;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+
+import org.mozilla.gecko.preferences.GeckoPreferences;
+import org.mozilla.gecko.util.HardwareUtils;
+
+public class NewTabletUI {
+    // XXX: Change default value to false before merging to m-c.
+    // This value should be in sync with preferences_display.xml.
+    private static final boolean DEFAULT = true;
+
+    private static Boolean sNewTabletUI;
+
+    public static synchronized boolean isEnabled(Context context) {
+        if (!HardwareUtils.isTablet()) {
+            return false;
+        }
+
+        if (sNewTabletUI == null) {
+            final SharedPreferences prefs = GeckoSharedPrefs.forApp(context);
+            sNewTabletUI = prefs.getBoolean(GeckoPreferences.PREFS_NEW_TABLET_UI, DEFAULT);
+        }
+
+        return sNewTabletUI;
+    }
+}

mobile/android/base/moz.build

@@ -328,6 +328,7 @@ gbjar.sources += [
     'menu/MenuPanel.java',
     'menu/MenuPopup.java',
     'MotionEventInterceptor.java',
+    'NewTabletUI.java',
     'NotificationClient.java',
     'NotificationHandler.java',
     'NotificationHelper.java',