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path: root/Software/Visual_Studio/PPC/Modules/Tango.PPC.Browser/ViewModels/BrowserViewVM.cs
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using CefSharp;
using CefSharp.Wpf;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.Core.Commands;
using Tango.PPC.Browser.ViewContracts;
using Tango.PPC.Common;
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>
    {
        private String _address;
        public String Address
        {
            get { return _address; }
            set { _address = value; RaisePropertyChangedAuto(); }
        }

        public RelayCommand GoCommand { get; set; }

        public BrowserViewVM()
        {
            if (!DesignMode)
            {
                try
                {
                    var settings = new CefSettings();
                    settings.BrowserSubprocessPath = @"x86\CefSharp.BrowserSubprocess.exe";
                    settings.UserAgent = "Mozilla/5.0 (iPad; CPU OS 12_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148";

                    Cef.Initialize(settings, performDependencyCheck: false, browserProcessHandler: null);
                }
                catch (Exception ex)
                {
                    //Log Here Not Throw!
                    throw;
                }
            }

            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;
        }

        public override void OnNavigatedFrom()
        {
            base.OnNavigatedFrom();
            KeyboardView.Default.OutputMode = KeyboardOutputMode.Wpf;
        }

        public override Task<bool> OnNavigateBackRequest()
        {
            if (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()
        {
            View.NavigateTo(Address);
        }
    }
}