Added Version Info page to toolbar menu

blimp/client/app/android/java/src/org/chromium/blimp/settings/AboutBlimpPreferences.java

Index: blimp/client/app/android/java/src/org/chromium/blimp/settings/AboutBlimpPreferences.java
diff --git a/blimp/client/app/android/java/src/org/chromium/blimp/settings/AboutBlimpPreferences.java b/blimp/client/app/android/java/src/org/chromium/blimp/settings/AboutBlimpPreferences.java
new file mode 100644
index 0000000000000000000000000000000000000000..8152c215068e5e52d5b0ff9d129dd77d74f989d2
--- /dev/null
+++ b/blimp/client/app/android/java/src/org/chromium/blimp/settings/AboutBlimpPreferences.java
@@ -0,0 +1,77 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.blimp.settings;
+
+import android.app.Activity;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.os.Build;
+import android.os.Bundle;
+import android.preference.Preference;
+import android.preference.PreferenceFragment;
+import android.text.TextUtils;
+
+import org.chromium.base.Log;
+import org.chromium.blimp.R;
+
+/**
+ * Fragment to display blimp client and engine version related info.
+ */
+public class AboutBlimpPreferences extends PreferenceFragment {
+    private static final String TAG = "AboutBlimp";
+    public static final String EXTRA_ENGINE_IP = "engine_ip";
+    public static final String EXTRA_ENGINE_VERSION = "engine_version";
+    public static final String EXTRA_ASSIGNER_URL = "assigner_url";
+
+    private static final String PREF_APPLICATION_VERSION = "application_version";
+    private static final String PREF_OS_VERSION = "os_version";
+    private static final String PREF_ENGINE_IP = "blimp_engine_ip";
+    private static final String PREF_ENGINE_VERSION = "blimp_engine_version";
+    private static final String PREF_ASSIGNER_URL = "blimp_assigner_url";
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        getActivity().setTitle(R.string.about_blimp_preferences);
+        addPreferencesFromResource(R.xml.about_blimp_preferences);
+
+        Activity activity = getActivity();
+        PackageManager pm = getActivity().getPackageManager();
+        try {
+            ApplicationInfo applicationInfo = pm.getApplicationInfo(activity.getPackageName(), 0);
+            PackageInfo packageInfo = pm.getPackageInfo(activity.getPackageName(), 0);
+
+            String versionString;
+            if (!TextUtils.isEmpty(packageInfo.versionName)
+                    && Character.isDigit(packageInfo.versionName.charAt(0))) {
+                versionString = activity.getString(
+                        R.string.subtitle_for_version_number, packageInfo.versionName);
+            } else {
+                versionString = packageInfo.versionName;
+            }
+
+            Preference p = findPreference(PREF_APPLICATION_VERSION);
+            p.setSummary(versionString);
+        } catch (PackageManager.NameNotFoundException e) {
+            Log.d(TAG, "Fetching ApplicationInfo failed.", e);
+        }
+
+        Preference p = findPreference(PREF_OS_VERSION);
+        p.setSummary("Android " + Build.VERSION.RELEASE);
+
+        String engineIP = getActivity().getIntent().getStringExtra(EXTRA_ENGINE_IP);
+        p = findPreference(PREF_ENGINE_IP);
+        p.setSummary(engineIP == null ? "" : engineIP);
+
+        String engineVersion = getActivity().getIntent().getStringExtra(EXTRA_ENGINE_VERSION);
+        p = findPreference(PREF_ENGINE_VERSION);
+        p.setSummary(engineVersion == null ? "" : engineVersion);
+
+        String assigner = getActivity().getIntent().getStringExtra(EXTRA_ASSIGNER_URL);
+        p = findPreference(PREF_ASSIGNER_URL);
+        p.setSummary(assigner == null ? "" : assigner);
+    }
+}