From 439ee2d80eab039c2dee00f697d2d814ec67247e Mon Sep 17 00:00:00 2001
From: Roy Ben-Shabat <Roy@Twine-s.com>
Date: Wed, 22 Aug 2018 18:33:29 +0300
Subject: Added IsFree to base ViewModel. Implemented IsFree on
 HardwareVersions & ColorLab modules.

---
 Software/Visual_Studio/Tango.SharedUI/ViewModel.cs | 52 +++++++++-------------
 1 file changed, 22 insertions(+), 30 deletions(-)

(limited to 'Software/Visual_Studio/Tango.SharedUI/ViewModel.cs')

diff --git a/Software/Visual_Studio/Tango.SharedUI/ViewModel.cs b/Software/Visual_Studio/Tango.SharedUI/ViewModel.cs
index 7d215cd06..d4f26c79d 100644
--- a/Software/Visual_Studio/Tango.SharedUI/ViewModel.cs
+++ b/Software/Visual_Studio/Tango.SharedUI/ViewModel.cs
@@ -23,6 +23,7 @@ namespace Tango.SharedUI
     public abstract class ViewModel : ExtendedObject, INotifyDataErrorInfo
     {
         private List<KeyValuePair<String, String>> _currentErrors = new List<KeyValuePair<string, string>>(); //Holds the current validation errors.
+        private bool _isFreeSet;
 
         private bool _hasErrors;
         /// <summary>
@@ -34,6 +35,16 @@ namespace Tango.SharedUI
             set { _hasErrors = value; RaisePropertyChangedAuto(); }
         }
 
+        private bool _isFree;
+        /// <summary>
+        /// Gets or sets a value indicating whether this view model is free to perform actions.
+        /// </summary>
+        public bool IsFree
+        {
+            get { return _isFree; }
+            set { _isFree = value; RaisePropertyChangedAuto(); InvalidateRelayCommands(); }
+        }
+
         private ObservableCollection<String> _validationErrors;
         /// <summary>
         /// Gets or sets the validation errors.
@@ -49,6 +60,14 @@ namespace Tango.SharedUI
         /// </summary>
         public event EventHandler<DataErrorsChangedEventArgs> ErrorsChanged;
 
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ViewModel"/> class.
+        /// </summary>
+        public ViewModel()
+        {
+            IsFree = true;
+        }
+
         /// <summary>
         /// Gets the validation errors for a specified property or for the entire entity.
         /// </summary>
@@ -160,42 +179,15 @@ namespace Tango.SharedUI
         /// </summary>
         public T View { get; set; }
 
-
-        /// <summary>
-        /// Initializes a new instance of the <see cref="ViewModel{T}"/> class.
-        /// </summary>
-        /// <param name="view">The view.</param>
-        public ViewModel(T view)
-        {
-            View = view;
-            View.ViewAttached += (x, e) =>
-            {
-                View = (T)e;
-                OnViewAttached();
-            };
-        }
-
         /// <summary>
         /// Initializes a new instance of the <see cref="ViewModel{T}"/> class.
         /// </summary>
-        /// <param name="view">The view.</param>
-        /// <param name="delayed">if set to <c>true</c> waits for the view to be valid before registering for the <see cref="IView.ViewAttached"/> event.</param>
-        public ViewModel(T view, bool delayed)
+        public ViewModel() : base()
         {
-            Task.Factory.StartNew(() =>
-            {
-                while (view == null)
-                {
-                    Thread.Sleep(10);
-                }
-            }).ContinueWith((c) =>
+            TangoIOC.Default.GetInstanceWhenAvailable<T>((view) => 
             {
                 View = view;
-                View.ViewAttached += (x, e) =>
-                {
-                    View = (T)e;
-                    OnViewAttached();
-                };
+                OnViewAttached();
             });
         }
 
-- 
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