From af7e7c2581c9d1e39228a765af141e57686cf746 Mon Sep 17 00:00:00 2001
From: str4d <str4d@mail.i2p>
Date: Fri, 29 May 2015 02:54:40 +0000
Subject: [PATCH] Configurable language, part 1

---
 .../config/AppearancePreferenceFragment.java  | 36 +++++++++++
 .../bote/android/config/SettingsActivity.java | 26 +++++++-
 .../i2p/bote/android/util/LocaleManager.java  | 62 +++++++++++++++++++
 app/src/main/res/values/arrays.xml            | 32 ++++++++++
 app/src/main/res/values/strings.xml           |  3 +
 app/src/main/res/xml/settings.xml             |  3 +
 app/src/main/res/xml/settings_appearance.xml  | 10 +++
 7 files changed, 171 insertions(+), 1 deletion(-)
 create mode 100644 app/src/main/java/i2p/bote/android/config/AppearancePreferenceFragment.java
 create mode 100644 app/src/main/java/i2p/bote/android/util/LocaleManager.java
 create mode 100644 app/src/main/res/xml/settings_appearance.xml

diff --git a/app/src/main/java/i2p/bote/android/config/AppearancePreferenceFragment.java b/app/src/main/java/i2p/bote/android/config/AppearancePreferenceFragment.java
new file mode 100644
index 0000000..a84b6e1
--- /dev/null
+++ b/app/src/main/java/i2p/bote/android/config/AppearancePreferenceFragment.java
@@ -0,0 +1,36 @@
+package i2p.bote.android.config;
+
+import android.os.Bundle;
+import android.support.v4.preference.PreferenceFragment;
+
+import i2p.bote.android.R;
+
+public class AppearancePreferenceFragment extends PreferenceFragment {
+    @Override
+    public void onCreate(Bundle paramBundle) {
+        super.onCreate(paramBundle);
+        addPreferencesFromResource(R.xml.settings_appearance);
+    }
+
+    @Override
+    public void onStart() {
+        super.onStart();
+        getPreferenceScreen().getSharedPreferences().registerOnSharedPreferenceChangeListener(
+                (SettingsActivity) getActivity()
+        );
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        ((SettingsActivity) getActivity()).getSupportActionBar().setTitle(R.string.settings_label_appearance);
+    }
+
+    @Override
+    public void onStop() {
+        super.onStop();
+        getPreferenceScreen().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(
+                (SettingsActivity) getActivity()
+        );
+    }
+}
diff --git a/app/src/main/java/i2p/bote/android/config/SettingsActivity.java b/app/src/main/java/i2p/bote/android/config/SettingsActivity.java
index 37d370e..f3246bc 100644
--- a/app/src/main/java/i2p/bote/android/config/SettingsActivity.java
+++ b/app/src/main/java/i2p/bote/android/config/SettingsActivity.java
@@ -1,6 +1,7 @@
 package i2p.bote.android.config;
 
 import android.content.Intent;
+import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.preference.Preference;
 import android.support.v4.app.Fragment;
@@ -13,12 +14,17 @@ import i2p.bote.android.EmailListActivity;
 import i2p.bote.android.InitActivities;
 import i2p.bote.android.R;
 import i2p.bote.android.identities.IdentityListActivity;
+import i2p.bote.android.util.LocaleManager;
 
-public class SettingsActivity extends AppCompatActivity {
+public class SettingsActivity extends AppCompatActivity implements
+        SharedPreferences.OnSharedPreferenceChangeListener {
     public static final String PREFERENCE_CATEGORY = "preference_category";
     public static final String PREFERENCE_CATEGORY_GENERAL = "preference_category_general";
     public static final String PREFERENCE_CATEGORY_CHANGE_PASSWORD = "preference_category_change_password";
     public static final String PREFERENCE_CATEGORY_IDENTITIES = "preference_category_identities";
+    public static final String PREFERENCE_CATEGORY_APPEARANCE = "preference_category_appearance";
+
+    private final LocaleManager localeManager = new LocaleManager();
 
 
     //
@@ -27,6 +33,7 @@ public class SettingsActivity extends AppCompatActivity {
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
+        localeManager.onCreate(this);
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_toolbar);
 
@@ -51,6 +58,12 @@ public class SettingsActivity extends AppCompatActivity {
                 .commit();
     }
 
+    @Override
+    public void onResume() {
+        super.onResume();
+        localeManager.onResume(this);
+    }
+
     @Override
     public boolean onSupportNavigateUp() {
         FragmentManager fragmentManager = getSupportFragmentManager();
@@ -65,6 +78,13 @@ public class SettingsActivity extends AppCompatActivity {
         return true;
     }
 
+    @Override
+    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
+        if (key.equals("pref_language")) {
+            localeManager.onResume(this);
+        }
+    }
+
 
     //
     // Settings pages
@@ -82,6 +102,8 @@ public class SettingsActivity extends AppCompatActivity {
                     .setOnPreferenceClickListener(new CategoryClickListener(PREFERENCE_CATEGORY_CHANGE_PASSWORD));
             findPreference(PREFERENCE_CATEGORY_IDENTITIES)
                     .setOnPreferenceClickListener(new CategoryClickListener(PREFERENCE_CATEGORY_IDENTITIES));
+            findPreference(PREFERENCE_CATEGORY_APPEARANCE)
+                    .setOnPreferenceClickListener(new CategoryClickListener(PREFERENCE_CATEGORY_APPEARANCE));
         }
 
         @Override
@@ -127,6 +149,8 @@ public class SettingsActivity extends AppCompatActivity {
         switch (category) {
             case PREFERENCE_CATEGORY_GENERAL:
                 return new GeneralPreferenceFragment();
+            case PREFERENCE_CATEGORY_APPEARANCE:
+                return new AppearancePreferenceFragment();
             default:
                 throw new AssertionError();
         }
diff --git a/app/src/main/java/i2p/bote/android/util/LocaleManager.java b/app/src/main/java/i2p/bote/android/util/LocaleManager.java
new file mode 100644
index 0000000..c306c6e
--- /dev/null
+++ b/app/src/main/java/i2p/bote/android/util/LocaleManager.java
@@ -0,0 +1,62 @@
+package i2p.bote.android.util;
+
+import android.app.Activity;
+import android.app.Service;
+import android.content.Context;
+import android.content.Intent;
+import android.content.res.Configuration;
+import android.preference.PreferenceManager;
+import android.text.TextUtils;
+
+import java.util.Locale;
+
+public class LocaleManager {
+    private Locale currentLocale;
+
+    public void onCreate(Activity activity) {
+        currentLocale = getSelectedLocale(activity);
+        setContextLocale(activity, currentLocale);
+    }
+
+    public void onResume(Activity activity) {
+        // If the activity has the incorrect locale, restart it
+        if (!currentLocale.equals(getSelectedLocale(activity))) {
+            Intent intent = activity.getIntent();
+            activity.finish();
+            activity.overridePendingTransition(0, 0);
+            activity.startActivity(intent);
+            activity.overridePendingTransition(0, 0);
+        }
+    }
+
+    public void updateServiceLocale(Service service) {
+        currentLocale = getSelectedLocale(service);
+        setContextLocale(service, currentLocale);
+    }
+
+    private static Locale getSelectedLocale(Context context) {
+        String defaultLanguage = "zz";
+        String selectedLanguage = PreferenceManager.getDefaultSharedPreferences(context).getString(
+                "pref_language", defaultLanguage
+        );
+        String language[] = TextUtils.split(selectedLanguage, "_");
+
+        if (language[0].equals(defaultLanguage))
+            return Locale.getDefault();
+        else if (language.length == 2)
+            return new Locale(language[0], language[1]);
+        else
+            return new Locale(language[0]);
+    }
+
+    private static void setContextLocale(Context context, Locale selectedLocale) {
+        Configuration configuration = context.getResources().getConfiguration();
+        if (!configuration.locale.equals(selectedLocale)) {
+            configuration.locale = selectedLocale;
+            context.getResources().updateConfiguration(
+                    configuration,
+                    context.getResources().getDisplayMetrics()
+            );
+        }
+    }
+}
diff --git a/app/src/main/res/values/arrays.xml b/app/src/main/res/values/arrays.xml
index 3e307e5..3ada9ec 100644
--- a/app/src/main/res/values/arrays.xml
+++ b/app/src/main/res/values/arrays.xml
@@ -16,4 +16,36 @@
         <item>I2P Android</item>
         <item>@string/remote_i2p_router</item>
     </string-array>
+    <string-array name="languages">
+        <item>zz</item>
+        <item>en</item>
+        <item>zh</item>
+        <item>de</item>
+        <item>es</item>
+        <item>fr</item>
+        <item>in</item>
+        <item>nb</item>
+        <item>nl</item>
+        <item>pl</item>
+        <item>pt</item>
+        <item>ro</item>
+        <item>ru</item>
+        <item>sq</item>
+    </string-array>
+    <string-array name="language_names">
+        <item>@string/settings_default</item>
+        <item>English</item>
+        <item>Chinese 中国的</item>
+        <item>Deutsch</item>
+        <item>Español</item>
+        <item>Français</item>
+        <item>Indonesia</item>
+        <item>Norwegian Bokmål</item>
+        <item>Nederlands</item>
+        <item>Polski</item>
+        <item>Português</item>
+        <item>Română</item>
+        <item>Russian Pусский</item>
+        <item>Shqip</item>
+    </string-array>
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 57cd272..5e35dbb 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -213,6 +213,9 @@
     <string name="pref_dialog_title_router">Router to use</string>
     <string name="pref_title_i2cp_host">I2CP host</string>
     <string name="pref_title_i2cp_port">I2CP port</string>
+    <string name="settings_label_appearance">Appearance</string>
+    <string name="settings_label_language">Language</string>
+    <string name="settings_default">Default</string>
     <string name="pref_title_change_password">Change password</string>
     <string name="old_password">Old password</string>
     <string name="new_password">New password</string>
diff --git a/app/src/main/res/xml/settings.xml b/app/src/main/res/xml/settings.xml
index 8c03cd1..522ca2d 100644
--- a/app/src/main/res/xml/settings.xml
+++ b/app/src/main/res/xml/settings.xml
@@ -9,4 +9,7 @@
     <Preference
         android:key="preference_category_identities"
         android:title="@string/pref_title_identities"/>
+    <Preference
+        android:key="preference_category_appearance"
+        android:title="@string/settings_label_appearance" />
 </PreferenceScreen>
\ No newline at end of file
diff --git a/app/src/main/res/xml/settings_appearance.xml b/app/src/main/res/xml/settings_appearance.xml
new file mode 100644
index 0000000..834c662
--- /dev/null
+++ b/app/src/main/res/xml/settings_appearance.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+    <ListPreference
+        android:defaultValue="zz"
+        android:entries="@array/language_names"
+        android:entryValues="@array/languages"
+        android:key="pref_language"
+        android:summary="%s"
+        android:title="@string/settings_label_language" />
+</PreferenceScreen>
\ No newline at end of file