src/Tizen.NUI/src/internal/XamlBinding/OnPlatform.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using Tizen.NUI.Xaml;
   4
   5 namespace Tizen.NUI.Binding
   6 {
   7     [ContentProperty("Platforms")]
   8     internal class OnPlatform<T>
   9     {
  10         public OnPlatform()
  11         {
  12             Platforms = new List<On>();
  13         }
  14
  15         bool useLegacyFallback;
  16         T android;
  17         [Obsolete]
  18         public T Android
  19         {
  20             get { return android; }
  21             set
  22             {
  23                 useLegacyFallback = true;
  24                 android = value;
  25             }
  26         }
  27
  28         T ios;
  29         [Obsolete]
  30         public T iOS
  31         {
  32             get { return ios; }
  33             set
  34             {
  35                 useLegacyFallback = true;
  36                 ios = value;
  37             }
  38         }
  39
  40         T winPhone;
  41         [Obsolete]
  42         public T WinPhone
  43         {
  44             get { return winPhone; }
  45             set
  46             {
  47                 useLegacyFallback = true;
  48                 winPhone = value;
  49             }
  50         }
  51
  52         bool hasDefault;
  53         T @default;
  54         public T Default
  55         {
  56             get { return @default; }
  57             set
  58             {
  59                 hasDefault = true;
  60                 @default = value;
  61             }
  62         }
  63
  64         public IList<On> Platforms { get; private set; }
  65
  66 #pragma warning disable RECS0108 // Warns about static fields in generic types
  67         static readonly IValueConverterProvider s_valueConverter = DependencyService.Get<IValueConverterProvider>();
  68 #pragma warning restore RECS0108 // Warns about static fields in generic types
  69
  70         public static implicit operator T(OnPlatform<T> onPlatform)
  71         {
  72             foreach (var onPlat in onPlatform.Platforms)
  73             {
  74                 if (onPlat.Platform == null)
  75                     continue;
  76                 if (null != Device.RuntimePlatform && !onPlat.Platform.Contains(Device.RuntimePlatform))
  77                     continue;
  78                 if (s_valueConverter == null)
  79                     continue;
  80                 return (T)s_valueConverter.Convert(onPlat.Value, typeof(T), null, null);
  81             }
  82
  83             if (!onPlatform.useLegacyFallback)
  84                 return onPlatform.hasDefault ? onPlatform.@default : default(T);
  85
  86             //legacy fallback
  87 #pragma warning disable 0618, 0612
  88             return Device.OnPlatform(iOS: onPlatform.iOS, Android: onPlatform.Android, WinPhone: onPlatform.WinPhone);
  89 #pragma warning restore 0618, 0612
  90         }
  91     }
  92
  93     [ContentProperty("Value")]
  94     internal class On
  95     {
  96         [TypeConverter(typeof(ListStringTypeConverter))]
  97         public IList<string> Platform { get; set; }
  98         public object Value { get; set; }
  99     }
 100 }