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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.PPC.Browser.Navigation;
using Tango.PPC.Browser.ViewContracts;
using Tango.PPC.Common;
using Tango.PPC.Common.Navigation;
using Tango.Touch.Keyboard;
namespace Tango.PPC.Browser.ViewModels
{
/// <summary>
/// Represents the main view VM and entry point for <see cref="Synchronization.MyModule"/>.
/// </summary>
/// <seealso cref="Tango.PPC.Common.PPCViewModel" />
public class BrowserViewVM : PPCViewModel<IBrowserView>, INavigationObjectReceiver<BrowserNavigationRequest>
{
private bool _isFromObject;
private String _address;
public String Address
{
get { return _address; }
set { _address = value; RaisePropertyChangedAuto(); }
}
private bool _displayAddressBar;
public bool DisplayAddressBar
{
get { return _displayAddressBar; }
set { _displayAddressBar = value; RaisePropertyChangedAuto(); }
}
public RelayCommand GoCommand { get; set; }
public BrowserViewVM()
{
DisplayAddressBar = true;
GoCommand = new RelayCommand(Go);
}
public override void OnViewAttached()
{
base.OnViewAttached();
View.AddressChanged += View_AddressChanged;
}
private void View_AddressChanged(object sender, string address)
{
Address = address;
}
public override void OnNavigatedTo()
{
base.OnNavigatedTo();
KeyboardView.Default.OutputMode = KeyboardOutputMode.Windows;
if (!_isFromObject)
{
DisplayAddressBar = true;
}
_isFromObject = false;
}
public override void OnNavigatedFrom()
{
base.OnNavigatedFrom();
KeyboardView.Default.OutputMode = KeyboardOutputMode.Wpf;
}
public override Task<bool> OnNavigateBackRequest()
{
if (View != null && View.CanGoBack())
{
View.GoBack();
return Task.FromResult(false);
}
else
{
return Task.FromResult(true);
}
}
/// <summary>
/// Called when the application has been started
/// </summary>
public override void OnApplicationStarted()
{
}
private void Go()
{
if (View != null)
{
View.NavigateTo(Address);
}
}
public void OnNavigatedToWithObject(BrowserNavigationRequest obj)
{
_isFromObject = true;
DisplayAddressBar = obj.DisplayAddressBar;
if (obj.Address != null)
{
Address = obj.Address;
Go();
}
}
}
}
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