Version 3.0.299

TINKLib/View/Settings/BackendPermissionsToVisibleConverter.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Globalization;
+using Xamarin.Forms;
+using TINK.Model.User.Account;
+
+namespace TINK.View.Settings
+{
+
+    /// <summary> 
+    /// Translates user permissions into visibility state. 
+    /// Used for container which holds a bunch of GUI elemets which migth all/ partly/ none be visible
+    /// If all childs are invisible frame must be invisible as well. As soon as one child is visible frame must be visible as well.
+    /// </summary>
+    public class BackendPermissionsToVisibleConverter : IValueConverter
+    {
+        /// <summary> Converts permission value into visible state.</summary>
+        /// <param name="value">Permission value from view model used to derive whether object is visible or not.</param>
+        /// <returns>Boolean value indicating whether object is visible or not.</returns>
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            var enumValue = (Permissions)value;
+            return enumValue.HasFlag(Permissions.PickCopriServer) | enumValue.HasFlag(Permissions.ManagePolling) | enumValue.HasFlag(Permissions.ManageCopriCacheExpiration);
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return Permissions.None;
+        }
+    }
+}

TINKLib/View/Settings/PermissionToVisibleConverter.cs

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+using System;
+using System.Globalization;
+using Xamarin.Forms;
+using TINK.Model.User.Account;
+
+namespace TINK.View.Settings
+{
+    /// <summary> Translates user permissions into visibility state. </summary>
+    public class PermissionToVisibleConverter : BindableObject, IValueConverter
+    {
+        static readonly BindableProperty VisibleFlagProperty =
+            BindableProperty.Create(nameof(VisibleFlag), typeof(Permissions), typeof(BindableObject));
+
+        /// <summary> Property set from XAML determinig for which permission value object is visible.</summary>
+        public Permissions VisibleFlag
+        {
+            get => (Permissions)GetValue(VisibleFlagProperty);
+            set => SetValue(VisibleFlagProperty, value);
+        }
+
+        /// <summary> Converts permission value into visible state.</summary>
+        /// <param name="value">Permission value from view model used to derive whether object is visible or not.</param>
+        /// <returns>Boolean value indicating whether object is visible or not.</returns>
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return ((Permissions)value).HasFlag(VisibleFlag);
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return Permissions.None;
+        }
+    }
+}