When offline show a list of countries with phone support.

Bug: 29105266

TODO:
- Support phones UI for international travel
- Selecting default country
- Show operation hours for selected country

Change-Id: I08a6780497dfcb9b9dc8670f2705d01df021c57b

src/com/android/settings/support/SupportPhone.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2016 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.support;
+
+import android.content.Intent;
+import android.net.Uri;
+import android.text.TextUtils;
+
+import java.text.ParseException;
+
+/**
+ * Data model for a support phone number.
+ */
+public final class SupportPhone {
+
+    public final String language;
+    public final String number;
+    public final boolean isTollFree;
+
+    public SupportPhone(String config) throws ParseException {
+        // Config follows this format: language:[tollfree|tolled]:number
+        final String[] tokens = config.split(":");
+        if (tokens.length != 3) {
+            throw new ParseException("Phone config is invalid " + config, 0);
+        }
+        language = tokens[0];
+        isTollFree = TextUtils.equals(tokens[1], "tollfree");
+        number = tokens[2];
+    }
+
+    public Intent getDialIntent() {
+        return new Intent(Intent.ACTION_DIAL)
+                .setData(new Uri.Builder()
+                        .scheme("tel")
+                        .appendPath(number)
+                        .build());
+    }
+}