src/Tizen.NUI/src/internal/XamlBinding/Interactivity/Trigger.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using System.Reflection;
   4
   5 using Tizen.NUI.Xaml;
   6
   7 namespace Tizen.NUI.Binding
   8 {
   9     [ContentProperty("Setters")]
  10     [ProvideCompiled("Tizen.NUI.Xaml.Core.XamlC.PassthroughValueProvider")]
  11     [AcceptEmptyServiceProvider]
  12     internal sealed class Trigger : TriggerBase, IValueProvider
  13     {
  14         public Trigger([TypeConverter(typeof(TypeTypeConverter))] [Parameter("TargetType")] Type targetType) : base(new XamlPropertyCondition(), targetType)
  15         {
  16         }
  17
  18         public BindableProperty Property
  19         {
  20             get { return ((XamlPropertyCondition)Condition).Property; }
  21             set
  22             {
  23                 if (((XamlPropertyCondition)Condition).Property == value)
  24                     return;
  25                 if (IsSealed)
  26                     throw new InvalidOperationException("Can not change Property once the Trigger has been applied.");
  27                 OnPropertyChanging();
  28                 ((XamlPropertyCondition)Condition).Property = value;
  29                 OnPropertyChanged();
  30             }
  31         }
  32
  33         public new IList<Setter> Setters
  34         {
  35             get { return base.Setters; }
  36         }
  37
  38         public object Value
  39         {
  40             get { return ((XamlPropertyCondition)Condition).Value; }
  41             set
  42             {
  43                 if (((XamlPropertyCondition)Condition).Value == value)
  44                     return;
  45                 if (IsSealed)
  46                     throw new InvalidOperationException("Can not change Value once the Trigger has been applied.");
  47                 OnPropertyChanging();
  48                 ((XamlPropertyCondition)Condition).Value = value;
  49                 OnPropertyChanged();
  50             }
  51         }
  52
  53         object IValueProvider.ProvideValue(IServiceProvider serviceProvider)
  54         {
  55             //This is no longer required
  56             return this;
  57         }
  58     }
  59 }