Support system default CultureInfo (#3681)

When the system locale is "tl_PH.utf8", the CoreApplication sets the
CultureInfo that is created using "en". Because, there is no CultureInfo
about "tl-PH" and "tl". But, the developer can create the resource using
"tl-PH". In this case, developers expect the name of the CultureInfo is "tl-PH".
Platform should set the current CultureInfo that is "tl-PH".
This patch supports system default CultureInfo using xml file.
Platform developers can set the default culture name for each locale.
The CoreApplication tries to create the CultureInfo using the culture name.

Signed-off-by: Hwankyu Jhun <h.jhun@samsung.com>

diff --git a/src/Tizen.Applications.Common/Tizen.Applications/CoreApplication.cs b/src/Tizen.Applications.Common/Tizen.Applications/CoreApplication.cs
index 487cb89..364da7c 100644 (file)
--- a/src/Tizen.Applications.Common/Tizen.Applications/CoreApplication.cs
+++ b/src/Tizen.Applications.Common/Tizen.Applications/CoreApplication.cs
@@ -262,6 +262,19 @@ namespace Tizen.Applications
         private CultureInfo ConvertCultureInfo(string locale)
         {
             ULocale pLocale = new ULocale(locale);
+            string cultureName = CultureInfoHelper.GetCultureName(pLocale.Locale.Replace("_", "-"));
+
+            if (!string.IsNullOrEmpty(cultureName))
+            {
+                try
+                {
+                    return new CultureInfo(cultureName);
+                }
+                catch (CultureNotFoundException)
+                {
+                    Log.Error(LogTag, "CultureNotFoundException occurs. CultureName: " + cultureName);
+                }
+            }
 
             try
             {

diff --git a/src/Tizen.Applications.Common/Tizen.Applications/CultureInfoHelper.cs b/src/Tizen.Applications.Common/Tizen.Applications/CultureInfoHelper.cs
new file mode 100755 (executable)
index 0000000..15ec3f8
--- /dev/null
+++ b/src/Tizen.Applications.Common/Tizen.Applications/CultureInfoHelper.cs
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2021 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ * 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.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO;
+using System.Xml;
+using Tizen;
+
+namespace Tizen.Applications
+{
+    internal static class CultureInfoHelper
+    {
+        private const string LogTag = "Tizen.Applications";
+        private static bool _initialized = false;
+        private static readonly Dictionary<string, string> _cultureNames = new Dictionary<string, string>();
+        private static readonly object _lock = new object();
+        private const string _pathCultureInfoXml = "/usr/share/dotnet.tizen/framework/i18n/CultureInfo.xml";
+        private static readonly CultureInfo _cultureInfo = new CultureInfo("en-US");
+
+        public static void Initialize()
+        {
+            if (File.Exists(_pathCultureInfoXml))
+            {
+                try
+                {
+                    ParseCultureInfoXml();
+                }
+                catch
+                {
+                    Log.Warn(LogTag, "Failed to parse CultureInfo.xml");
+                }
+            }
+
+            _initialized = true;
+        }
+
+        private static void ParseCultureInfoXml()
+        {
+            XmlDocument doc = new XmlDocument();
+            doc.Load(_pathCultureInfoXml);
+            XmlElement root = doc.DocumentElement;
+            foreach (XmlElement node in root.ChildNodes)
+            {
+                if (node.Name != "name" && node.FirstChild == null)
+                {
+                    continue;
+                }
+
+                string lang = node.GetAttribute("xml:lang");
+                string cultureName = node.FirstChild.Value;
+                if (!string.IsNullOrEmpty(lang) && !string.IsNullOrEmpty(cultureName))
+                {
+                    try
+                    {
+                        _cultureNames.Add(lang, cultureName);
+                    }
+                    catch (ArgumentException e)
+                    {
+                        Log.Error(LogTag, "ArgumentException: " + e.Message);
+                    }
+                }
+            }
+        }
+
+        public static string GetCultureName(string locale)
+        {
+            lock (_lock)
+            {
+                if (!_initialized)
+                {
+                    Initialize();
+                }
+
+                if (_cultureNames.TryGetValue(locale.ToLower(_cultureInfo), out string cultureName))
+                {
+                    return cultureName;
+                }
+            }
+
+            return string.Empty;
+        }
+    }
+}