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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 package org.chromium.chrome.browser.omaha; |
| 6 |
| 7 import android.content.Context; |
| 8 import android.content.SharedPreferences; |
| 9 import android.os.Looper; |
| 10 |
| 11 import org.chromium.base.BuildInfo; |
| 12 |
| 13 /** |
| 14 * Stubbed class for getting version numbers from the rest of Chrome. Override
the functions for |
| 15 * unit tests. |
| 16 */ |
| 17 public class VersionNumberGetter { |
| 18 /** |
| 19 * Retrieve the latest version we know about from disk. |
| 20 * This function incurs I/O, so make sure you don't use it from the main thr
ead. |
| 21 * @return The latest version if we retrieved one from the Omaha server, or
"" if we haven't. |
| 22 */ |
| 23 public String getLatestKnownVersion( |
| 24 Context applicationContext, String prefPackage, String prefLatestVer
sion) { |
| 25 assert Looper.myLooper() != Looper.getMainLooper(); |
| 26 SharedPreferences prefs = applicationContext.getSharedPreferences( |
| 27 prefPackage, Context.MODE_PRIVATE); |
| 28 return prefs.getString(prefLatestVersion, ""); |
| 29 } |
| 30 |
| 31 /** |
| 32 * Retrieve the version of Chrome we're using. |
| 33 * @return The latest version if we retrieved one from the Omaha server, or
"" if we haven't. |
| 34 */ |
| 35 public String getCurrentlyUsedVersion(Context applicationContext) { |
| 36 return BuildInfo.getPackageVersionName(applicationContext); |
| 37 } |
| 38 } |
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