public static StringProxy GetStringValue(this IValueProvider valueProvider, IResourceContext context,
bool setKey)
{
var proxy = new StringProxy();
var value = valueProvider.ProvideValue(context);
if (value is BindingBase binding)
{
BindingOperations.SetBinding(proxy, StringProxy.ValueProperty, binding);
if (setKey)
{
BindingOperations.SetBinding(proxy, StringProxy.KeyProperty, binding);
}
}
else
{
proxy.Value = value?.ToString();
if (setKey)
{
proxy.Key = value;
}
}
return(proxy);
}
public void XamlLoadSharedTest()
{
string text = @"
<ResourceDictionary xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' xmlns:test='clr-namespace:Granular.Presentation.Tests.Markup;assembly=Granular.Presentation.Tests'>
<test:LoaderTestElement x:Shared='false' x:Key='item1' Value1='1' Value2='2'/>
<test:LoaderTestElement x:Shared='true' x:Key='item2' Value1='3' Value2='4'/>
</ResourceDictionary>";
XamlElement rootElement = XamlParser.Parse(text);
ResourceDictionary dictionary = XamlLoader.Load(rootElement) as ResourceDictionary;
Assert.IsNotNull(dictionary);
Assert.IsTrue(dictionary.Contains("item1"));
Assert.IsTrue(dictionary.Contains("item2"));
IValueProvider valueProvider = dictionary.GetValue("item1") as IValueProvider;
Assert.IsNotNull(valueProvider);
LoaderTestElement item1a = valueProvider.ProvideValue() as LoaderTestElement;
Assert.IsNotNull(item1a);
Assert.AreEqual(1, ((LoaderTestElement)item1a).Value1);
Assert.AreEqual(2, ((LoaderTestElement)item1a).Value2);
LoaderTestElement item1b = valueProvider.ProvideValue() as LoaderTestElement;
Assert.IsNotNull(item1b);
Assert.AreNotEqual(item1a, item1b);
Assert.AreEqual(1, ((LoaderTestElement)item1b).Value1);
Assert.AreEqual(2, ((LoaderTestElement)item1b).Value2);
LoaderTestElement item2 = dictionary.GetValue("item2") as LoaderTestElement;
Assert.IsNotNull(item2);
Assert.AreEqual(3, ((LoaderTestElement)item2).Value1);
Assert.AreEqual(4, ((LoaderTestElement)item2).Value2);
}
public static BoolProxy GetBoolValue(this IValueProvider valueProvider, IResourceContext context)
{
var proxy = new BoolProxy();
var value = valueProvider.ProvideValue(context);
if (value is BindingBase binding)
{
BindingOperations.SetBinding(proxy, BoolProxy.ValueProperty, binding);
}
else
{
proxy.Value = value is bool b && b;
}
return(proxy);
}
public object ProvideValue(IResourceContext context)
{
var value = innerProvider.ProvideValue(context);
if (value is BindingBase binding)
{
binding.FallbackValue = defaultValue;
return(binding);
}
if (value is T)
{
return(value);
}
return(defaultValue);
}
public object ProvideValue(IResourceContext context)
{
var value = innerProvider.ProvideValue(context);
if (value is Binding binding)
{
binding.Converter = binding.Converter == null
? valueConverter
: new ConverterWrapper(valueConverter, binding.Converter);
return(binding);
}
if (value is BindingBase)
{
return(value);
}
return(valueConverter.Convert(value, typeof(object), null, CultureInfo.CurrentCulture));
}
private object GetResourceValue()
{
object value;
if (!resourceContainer.TryGetResource(resourceKey, out value))
{
return ObservableValue.UnsetValue;
}
if (!(value is IValueProvider))
{
return value;
}
if (currentValueProvider != value)
{
currentValueProvider = (IValueProvider)value;
currentValue = currentValueProvider.ProvideValue();
}
return currentValue;
}
private object GetResourceValue()
{
object value;
if (!resourceContainer.TryGetResource(resourceKey, out value))
{
return(ObservableValue.UnsetValue);
}
if (!(value is IValueProvider))
{
return(value);
}
if (currentValueProvider != value)
{
currentValueProvider = (IValueProvider)value;
currentValue = currentValueProvider.ProvideValue();
}
return(currentValue);
}
