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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.Core.Commands;
using Tango.Core.DI;
using Tango.PPC.Common;
using Tango.PPC.Common.Modules;
using Tango.PPC.Common.Navigation;
using Tango.PPC.UI.ViewsContracts;
using Tango.SharedUI;
namespace Tango.PPC.UI.ViewModels
{
/// <summary>
/// Represents the layout view containing the main menu and all modules.
/// </summary>
/// <seealso cref="Tango.PPC.Common.PPCViewModel{Tango.PPC.UI.ViewsContracts.ILayoutView}" />
public class LayoutViewVM : PPCViewModel<ILayoutView>
{
/// <summary>
/// Gets or sets the module loader.
/// </summary>
[TangoInject]
public IPPCModuleLoader ModuleLoader { get; set; }
private bool _isMenuOpened;
/// <summary>
/// Gets or sets a value indicating whether the side menu is opened.
/// </summary>
public bool IsMenuOpened
{
get { return _isMenuOpened; }
set { _isMenuOpened = value; RaisePropertyChangedAuto(); }
}
/// <summary>
/// Gets or sets the module navigation command.
/// </summary>
public RelayCommand<String> ModuleNavigationCommand { get; set; }
/// <summary>
/// Gets or sets the menu or back command.
/// </summary>
public RelayCommand MenuOrBackCommand { get; set; }
/// <summary>
/// Gets or sets the home command.
/// </summary>
public RelayCommand HomeCommand { get; set; }
/// <summary>
/// Initializes a new instance of the <see cref="LayoutViewVM"/> class.
/// </summary>
public LayoutViewVM()
{
ModuleNavigationCommand = new RelayCommand<string>(NavigateToModule);
HomeCommand = new RelayCommand(NavigateHome);
MenuOrBackCommand = new RelayCommand(OpenMenuOrNavigateBack);
}
/// <summary>
/// Opens the menu or navigate back.
/// </summary>
private void OpenMenuOrNavigateBack()
{
if (NavigationManager.CanNavigateBack)
{
NavigationManager.NavigateBack();
}
else
{
IsMenuOpened = true;
}
}
/// <summary>
/// Handles the module navigation command.
/// </summary>
/// <param name="moduleName">Name of the module.</param>
private void NavigateToModule(string moduleName)
{
IsMenuOpened = false;
NavigationManager.NavigateTo(moduleName);
}
/// <summary>
/// Handles the home command.
/// </summary>
private void NavigateHome()
{
IsMenuOpened = false;
NavigationManager.NavigateTo(NavigationView.HomeModule);
}
/// <summary>
/// Called when the application has been started.
/// </summary>
public override void OnApplicationStarted()
{
base.OnApplicationStarted();
ModuleLoader.ModulesLoaded += ModuleLoader_ModulesLoaded;
}
/// <summary>
/// Handles the ModulesLoaded event of the ModuleLoader.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
private void ModuleLoader_ModulesLoaded(object sender, EventArgs e)
{
View.ApplyModules(ModuleLoader.UserModules);
}
/// <summary>
/// Called when the instance of IPPCView is available.
/// </summary>
public override void OnViewAttached()
{
}
}
}
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