1 files changed, 46 insertions, 0 deletions
diff --git a/mobile/android/geckoview/src/main/java/org/mozilla/gecko/util/HardwareUtils.java b/mobile/android/geckoview/src/main/java/org/mozilla/gecko/util/HardwareUtils.java
new file mode 100644
index 0000000000..bab64b92d4
--- /dev/null
+++ b/mobile/android/geckoview/src/main/java/org/mozilla/gecko/util/HardwareUtils.java
@@ -0,0 +1,46 @@
+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
+ * 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.util;
+
+import android.content.Context;
+import android.content.res.Configuration;
+
+public final class HardwareUtils {
+  private static final String LOGTAG = "GeckoHardwareUtils";
+
+  private static volatile boolean sInited;
+
+  // These are all set once, during init.
+  private static volatile boolean sIsLargeTablet;
+  private static volatile boolean sIsSmallTablet;
+
+  private HardwareUtils() {}
+
+  public static synchronized void init(final Context context) {
+    if (sInited) {
+      return;
+    }
+
+    // Pre-populate common flags from the context.
+    final int screenLayoutSize =
+        context.getResources().getConfiguration().screenLayout
+            & Configuration.SCREENLAYOUT_SIZE_MASK;
+    if (screenLayoutSize == Configuration.SCREENLAYOUT_SIZE_XLARGE) {
+      sIsLargeTablet = true;
+    } else if (screenLayoutSize == Configuration.SCREENLAYOUT_SIZE_LARGE) {
+      sIsSmallTablet = true;
+    }
+
+    sInited = true;
+  }
+
+  public static boolean isTablet(final Context context) {
+    if (!sInited) {
+      init(context);
+    }
+    return sIsLargeTablet || sIsSmallTablet;
+  }
+}