sharee.bike-App/TINKLib/ViewModel/WhatsNew/Agb/AgbViewModel.cs
Anja Müller-Meißner 0468955d49 Version 3.0.338
2022-09-08 09:55:14 +02:00

85 lines
2.6 KiB
C#

using System;
using System.ComponentModel;
using System.Threading.Tasks;
using System.Windows.Input;
using TINK.View;
using TINK.ViewModel.Info;
using Xamarin.Forms;
namespace TINK.ViewModel.WhatsNew.Agb
{
public class AgbViewModel : INotifyPropertyChanged
{
/// <summary> Fired whenever a property changed.</summary>
public event PropertyChangedEventHandler PropertyChanged;
/// <summary> Holds the name of the host.</summary>
private string HostName { get; }
/// <summary> Holds value wether site caching is on or off.</summary>
bool IsSiteCachingOn { get; }
/// <summary>
/// Holds the current ui two letter ISO language name.
/// </summary>
private string UiIsoLanguageName { get; }
/// <summary> Constructs AGB view model</summary>
/// <param name="isSiteCachingOn">Holds value wether site caching is on or off.</param>
/// <param name="uiIsoLangugageName">Two letter ISO language name.</param>
/// <param name="resourceProvider">Delegate to get an an embedded html ressource. Used as fallback if download from web page does not work and cache is empty.</param>
/// <param name="viewService">View service to close page.</param>
public AgbViewModel(
string hostName,
bool isSiteCachingOn,
string uiIsoLangugageName,
Func<string, string> resourceProvider,
IViewService viewService)
{
HostName = hostName;
IsSiteCachingOn = isSiteCachingOn;
UiIsoLanguageName = uiIsoLangugageName;
ViewService = viewService
?? throw new ArgumentException($"Can not instantiate {typeof(WhatsNewViewModel)}-object. No view available.");
ResourceProvider = resourceProvider
?? throw new ArgumentException($"Can not instantiate {typeof(WhatsNewViewModel)}-object. No ressource provider availalbe.");
}
/// <summary> Gets the platfrom specific prefix. </summary>
private Func<string, string> ResourceProvider { get; set; }
/// <summary> Agb information text.</summary>
private HtmlWebViewSource infoAgb;
/// <summary> Agb information text.</summary>
public HtmlWebViewSource InfoAgb
{
get => infoAgb;
set
{
infoAgb = value;
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(InfoAgb)));
}
}
/// <summary> Called when page is shown. </summary>
public async Task OnAppearing()
{
InfoAgb = await InfoPageViewModel.GetAgb(HostName, "agbResourcePath", IsSiteCachingOn, UiIsoLanguageName);
}
/// <summary> User clicks OK button.</summary>
public ICommand OnOk
{
get
{
return new Command(async () => await ViewService.PopModalAsync());
}
}
/// <summary> Reference to view service object.</summary>
private IViewService ViewService;
}
}