/
SettingsViewModel.cs
87 lines (78 loc) · 2.82 KB
/
SettingsViewModel.cs
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using Microsoft.Toolkit.Mvvm.ComponentModel;
using DigitalTicket.Models;
using Windows.UI.Xaml;
using System.Collections.Generic;
using Windows.Globalization;
using Windows.UI.Xaml.Controls;
using DigitalTicket.Utils;
using DigitalTicket.Views;
namespace DigitalTicket.ViewModels
{
public class SettingsViewModel : ObservableObject
{
public List<string> LanguageOptions = new List<string>()
{
"Deutsch",
"English",
LocalizedResources.GetString("UseSystemLanguageName")
};
private int selectedLanguageIndex;
public int SelectedLanguageIndex
{
get
{
return selectedLanguageIndex;
}
set
{
SetProperty(ref selectedLanguageIndex, value);
SettingsStore.StoreAppLanguageOption(value == LanguageOptions.IndexOf(LocalizedResources.GetString("UseSystemLanguageName")) ? "SystemDefault" : LanguageOptions[value]);
UpdateAppLanguageOverride();
}
}
public void UpdateAppLanguageOverride()
{
ApplicationLanguages.PrimaryLanguageOverride = GetPrimaryLanguageOverrideFromLanguage(LanguageOptions[selectedLanguageIndex]);
(Window.Current.Content as Frame).BackStack.Clear();
(Window.Current.Content as Frame).Navigate(typeof(MainPage),typeof(SettingsPage));
}
public static string GetPrimaryLanguageOverrideFromLanguage(string language)
{
string actualLanguage = language == LocalizedResources.GetString("UseSystemLanguageName") ? ResolveClosestSupportedLanguage() : language;
switch (actualLanguage)
{
case "Deutsch":
return "de-DE";
case "English":
return "en";
default:
return "en";
}
}
private static string ResolveClosestSupportedLanguage()
{
string languageIdentifier = Windows.System.UserProfile.GlobalizationPreferences.Languages[0].ToString();
if (languageIdentifier.StartsWith("de"))
{
return "Deutsch";
}
else if (languageIdentifier.StartsWith("en"))
{
return "English";
}
return "English";
}
public SettingsViewModel()
{
var languageOption = SettingsStore.GetAppLanguageOption();
if (languageOption == "SystemDefault")
{
selectedLanguageIndex = LanguageOptions.IndexOf(LocalizedResources.GetString("UseSystemLanguageName"));
}
else
{
selectedLanguageIndex = LanguageOptions.IndexOf(languageOption);
}
}
}
}