Introduce BasebandVersionDialogController

- Create a controller to display data and for the
  baseband version field in FirmwareVersionDialogFragment

Bug: 36458278
Test: make RunSettingsRoboTests -j40
Change-Id: I6818966f43549f41f20a488190e3116322858089

src/com/android/settings/deviceinfo/firmwareversion/BasebandVersionDialogController.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.deviceinfo.firmwareversion;
+
+import android.content.Context;
+import android.os.SystemProperties;
+import android.support.annotation.VisibleForTesting;
+
+import com.android.settings.R;
+import com.android.settings.Utils;
+
+public class BasebandVersionDialogController {
+
+    @VisibleForTesting
+    static final int BASEBAND_VERSION_LABEL_ID = R.id.baseband_version_label;
+    @VisibleForTesting
+    static final int BASEBAND_VERSION_VALUE_ID = R.id.baseband_version_value;
+    @VisibleForTesting
+    static final String BASEBAND_PROPERTY = "gsm.version.baseband";
+
+    private final FirmwareVersionDialogFragment mDialog;
+
+    public BasebandVersionDialogController(FirmwareVersionDialogFragment dialog) {
+        mDialog = dialog;
+    }
+
+    /**
+     * Updates the baseband version field of the dialog.
+     */
+    public void initialize() {
+        final Context context = mDialog.getContext();
+        if (Utils.isWifiOnly(context)) {
+            mDialog.removeSettingFromScreen(BASEBAND_VERSION_LABEL_ID);
+            mDialog.removeSettingFromScreen(BASEBAND_VERSION_VALUE_ID);
+            return;
+        }
+
+        mDialog.setText(BASEBAND_VERSION_VALUE_ID, SystemProperties.get(BASEBAND_PROPERTY,
+                context.getString(R.string.device_info_default)));
+    }
+}