Added: QR Code in Page

Borepin/Borepin/PageModel/ScanURNPageModel.cs

@@ -0,0 +1,141 @@
+using Borepin.Base;
+using Borepin.Service.BFFH;
+using FabAccessAPI.Schema;
+using Prism.Commands;
+using Prism.Navigation;
+using Prism.Services;
+using System;
+using System.Threading.Tasks;
+using System.Windows.Input;
+using Xamarin.Forms;
+using ZXing;
+
+namespace Borepin.PageModel
+{
+    class ScanURNPageModel : ConnectionModelBase
+    {
+        #region Private Fields
+        private object _Instance;
+        #endregion
+
+        #region Contructors
+        public ScanURNPageModel(INavigationService navigationService, IPageDialogService pageDialogService, IBFFHService bffhService) : base(navigationService, pageDialogService, bffhService)
+        {
+            AbortCommand = new DelegateCommand(async () => await AbortCommandExecute().ConfigureAwait(true));
+            ScannedCommand = new DelegateCommand(async () => await ScannedCommandExecuteAsync().ConfigureAwait(false));
+
+            IsVisible = true;
+            IsScanning = true;
+        }
+        #endregion
+
+        #region Data
+        public override async Task LoadData()
+        {
+
+        }
+        #endregion
+
+        #region Fields
+        private Result _ScanResult;
+        public Result ScanResult
+        {
+            get => _ScanResult;
+            set => SetProperty(ref _ScanResult, value);
+        }
+
+        private bool _IsScanning;
+        public bool IsScanning
+        {
+            get => _IsScanning;
+            set => SetProperty(ref _IsScanning, value);
+        }
+
+        private bool _IsVisible;
+        public bool IsVisible
+        {
+            get => _IsVisible;
+            set => SetProperty(ref _IsVisible, value);
+        }
+        #endregion
+
+        #region Commands
+        private ICommand _ScannedCommand;
+
+        public ICommand ScannedCommand
+        {
+            get => _ScannedCommand;
+            set => SetProperty(ref _ScannedCommand, value);
+        }
+
+        public async Task ScannedCommandExecuteAsync()
+        {
+            IsScanning = false;
+
+            string id = await QRToID(ScanResult.Text).ConfigureAwait(false);
+
+            if (id != null)
+            {
+                NavigationParameters parameters = new NavigationParameters
+                        {
+                            { "id", id },
+                        };
+
+                Device.BeginInvokeOnMainThread(async () =>
+                {
+                    INavigationResult result = await _NavigationService.NavigateAsync("../MachinePage", parameters).ConfigureAwait(false);
+                });
+            }
+
+            IsScanning = true;
+        }
+
+        public async Task<string> QRToID(string value)
+        {
+            if (!_BFFHService.IsConnected)
+            {
+                IsConnected = false;
+                return null;
+            }
+
+            IMachineSystem machineInterface = (await _BFFHService.GetSession().ConfigureAwait(false)).MachineSystem;
+            MachineSystem.IInfoInterface infoInterface = await machineInterface.Info().ConfigureAwait(false);
+
+            Machine machine = await infoInterface.GetMachineURN(value).ConfigureAwait(false);
+
+            if (machine == null)
+            {
+                return null;
+            }
+
+            return machine.Id;
+        }
+
+        private ICommand _AbortCommand;
+        public ICommand AbortCommand
+        {
+            get => _AbortCommand;
+            set => SetProperty(ref _AbortCommand, value);
+        }
+        public async Task AbortCommandExecute()
+        {
+            IsScanning = false;
+            IsVisible = false;
+
+            await _NavigationService.GoBackAsync().ConfigureAwait(false);
+        }
+        #endregion
+
+        #region INavigationService
+        public override void OnNavigatedFrom(INavigationParameters parameters)
+        {
+
+        }
+
+        public override void OnNavigatedTo(INavigationParameters parameters)
+        {
+
+        }
+        #endregion
+    }
+}