Browse Source
When passed to Binding. Found another problem with OmniXAML which means we can't continue along this road: OmniXAML issue #50.pull/297/head
Steven Kirk
10 years ago
19 changed files with 282 additions and 86 deletions
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// Copyright (c) The Perspex Project. All rights reserved.
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// Licensed under the MIT license. See licence.md file in the project root for full license information.
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using System; |
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using System.Globalization; |
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using Perspex; |
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using Perspex.Markup; |
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namespace XamlTestApplication |
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{ |
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public class StringNullOrEmpty : IValueConverter |
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{ |
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public static readonly StringNullOrEmpty Instance = new StringNullOrEmpty(); |
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public object Convert(object value, Type targetType, object parameter, CultureInfo culture) |
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{ |
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if (value == null) |
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{ |
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return true; |
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} |
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else |
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{ |
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var s = value as string; |
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return s != null ? string.IsNullOrEmpty(s) : PerspexProperty.UnsetValue; |
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} |
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} |
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public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) |
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{ |
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throw new NotImplementedException(); |
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} |
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} |
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} |
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// Copyright (c) The Perspex Project. All rights reserved.
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// Licensed under the MIT license. See licence.md file in the project root for full license information.
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using OmniXaml; |
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using Perspex.Markup.Xaml.Data; |
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namespace Perspex.Markup.Xaml.MarkupExtensions |
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{ |
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public class BindingExtension : MarkupExtension |
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{ |
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public BindingExtension() |
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{ |
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} |
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public BindingExtension(string path) |
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{ |
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Path = path; |
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} |
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public override object ProvideValue(MarkupExtensionContext extensionContext) |
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{ |
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return new Data.Binding |
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{ |
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Mode = Mode, |
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SourcePropertyPath = Path, |
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}; |
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} |
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public object Converter { get; set; } |
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public BindingMode Mode { get; set; } |
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public string Path { get; set; } |
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} |
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} |
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// Copyright (c) The Perspex Project. All rights reserved.
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// Licensed under the MIT license. See licence.md file in the project root for full license information.
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using System; |
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using System.Linq; |
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using System.Reflection; |
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using Glass; |
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using OmniXaml; |
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namespace Perspex.Markup.Xaml.MarkupExtensions |
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{ |
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public class StaticExtension : MarkupExtension |
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{ |
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public StaticExtension() |
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{ |
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} |
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public StaticExtension(string identifier) |
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{ |
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Identifier = identifier; |
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} |
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public string Identifier { get; set; } |
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public override object ProvideValue(MarkupExtensionContext markupExtensionContext) |
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{ |
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var typeRepository = markupExtensionContext.TypeRepository; |
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var typeAndMember = GetTypeAndMember(Identifier); |
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var prefixAndType = GetPrefixAndType(typeAndMember.Item1); |
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var xamlType = typeRepository.GetByPrefix(prefixAndType.Item1, prefixAndType.Item2); |
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return GetValue(xamlType.UnderlyingType, typeAndMember.Item2); |
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} |
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private static Tuple<string, string> GetTypeAndMember(string s) |
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{ |
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var parts = s.Split('.'); |
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if (parts.Length != 2) |
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{ |
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throw new ArgumentException("Static member must be in the form Type.Member."); |
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} |
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return Tuple.Create(parts[0], parts[1]); |
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} |
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private static Tuple<string, string> GetPrefixAndType(string s) |
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{ |
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if (s.Contains(":")) |
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{ |
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return s.Dicotomize(':'); |
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} |
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else |
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{ |
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return new Tuple<string, string>(string.Empty, s); |
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} |
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} |
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private object GetValue(Type type, string name) |
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{ |
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var t = type; |
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while (t != null) |
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{ |
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var result = t.GetTypeInfo().DeclaredMembers.FirstOrDefault(x => x.Name == name); |
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if (result is PropertyInfo) |
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{ |
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var property = ((PropertyInfo)result); |
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if (property.GetMethod.IsStatic) |
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{ |
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return ((PropertyInfo)result).GetValue(null); |
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} |
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} |
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else if (result is FieldInfo) |
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{ |
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return ((FieldInfo)result).GetValue(null); |
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} |
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t = t.GetTypeInfo().BaseType; |
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} |
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throw new ArgumentException($"Static member '{type}.{name}' not found."); |
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} |
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} |
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} |
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