60 lines
1.8 KiB
C#
60 lines
1.8 KiB
C#
using Avalonia.Threading;
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using ReactiveUI;
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using System.Threading.Tasks;
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namespace SPTInstaller.ViewModels;
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public class ViewModelBase : ReactiveObject, IActivatableViewModel, IRoutableViewModel
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{
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public ViewModelActivator Activator { get; } = new();
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public string? UrlPathSegment => Guid.NewGuid().ToString().Substring(0, 7);
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public IScreen HostScreen { get; }
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/// <summary>
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/// Delay the return of the viewmodel
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/// </summary>
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/// <param name="Milliseconds">The amount of time in milliseconds to delay</param>
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/// <returns>The viewmodel after the delay time</returns>
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/// <remarks>Useful to delay the navigation to another view. For instance, to allow an animation to complete.</remarks>
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private async Task<ViewModelBase> WithDelay(int Milliseconds)
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{
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await Task.Delay(Milliseconds);
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return this;
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}
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/// <summary>
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/// Navigate to another viewmodel after a delay
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/// </summary>
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/// <param name="ViewModel"></param>
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/// <param name="Milliseconds"></param>
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/// <returns></returns>
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public async Task NavigateToWithDelay(ViewModelBase ViewModel, int Milliseconds)
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{
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await Dispatcher.UIThread.InvokeAsync(async () =>
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{
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HostScreen.Router.Navigate.Execute(await ViewModel.WithDelay(Milliseconds));
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});
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}
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/// <summary>
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/// Navigate to another viewmodel
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/// </summary>
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/// <param name="ViewModel"></param>
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public void NavigateTo(ViewModelBase ViewModel)
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{
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Dispatcher.UIThread.InvokeAsync(() => { HostScreen.Router.Navigate.Execute(ViewModel); });
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}
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public void NavigateBack()
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{
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Dispatcher.UIThread.InvokeAsync(() => { HostScreen.Router.NavigateBack.Execute(); });
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}
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public ViewModelBase(IScreen Host)
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{
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HostScreen = Host;
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}
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} |