public override void Apply()
{
var bindingDescription = CreateBindingDescription();
_bindingContextOwner.AddBinding(_target, bindingDescription, ClearBindingKey);
base.Apply();
}
public static void BindLanguage(this IMvxBindingContextOwner owner
, object target
, string targetPropertyName
, string sourceKey
, string sourcePropertyName = null
, string fallbackValue = null
, string converterName = null)
{
converterName = converterName ?? LanguageParser.DefaultConverterName;
sourcePropertyName = sourcePropertyName ?? LanguageParser.DefaultTextSourceName;
var converter = ValueConverterLookup.Find(converterName);
var bindingDescription = new MvxBindingDescription
{
TargetName = targetPropertyName,
SourcePropertyPath = sourcePropertyName,
Converter = converter,
ConverterParameter = sourceKey,
FallbackValue = fallbackValue,
Mode = MvxBindingMode.OneWay
};
owner.AddBinding(target, bindingDescription);
}
/// <summary>
/// Binds the language font.
/// </summary>
/// <param name="owner">Owner.</param>
/// <param name="target">Target.</param>
/// <param name="languageId">Language identifier.</param>
/// <param name="fontId">Font identifier.</param>
public static void BindLanguageFont(this IMvxBindingContextOwner owner
, object target
, string languageId
, string fontId
, string targetPropertyName = null)
{
var converter = MvvmCross.Base.MvxSingleton <IMvxBindingSingletonCache> .Instance.ValueConverterLookup.Find("FontLang");
var bindingDescription = new MvxBindingDescription();
if (!string.IsNullOrEmpty(targetPropertyName))
{
bindingDescription.TargetName = targetPropertyName;
}
else
{
bindingDescription.TargetName = "AttributedText";
}
bindingDescription.Source = new MvxPathSourceStepDescription {
SourcePropertyPath = "TextSource",
Converter = converter,
ConverterParameter = $"{languageId};{fontId}"
};
bindingDescription.Mode = MvxBindingMode.OneTime;
owner.AddBinding(target, bindingDescription);
}
public static void AddLinqBinding <TViewModel, TProperty>(
this IMvxBindingContextOwner owner,
TViewModel viewModel,
Expression <Func <TViewModel, TProperty> > propertyExpression,
Action <TProperty> action) where TViewModel : INotifyPropertyChanged
{
var propertyInfo = GetPropertyInfoFromExpression <TViewModel, TProperty>(propertyExpression);
var binding = new LinqBinding <TViewModel, TProperty>(viewModel, propertyInfo, action);
owner.AddBinding(owner, binding);
}
public static void AddBindings(this IMvxBindingContextOwner view, IEnumerable <IMvxUpdateableBinding> bindings)
{
if (bindings == null)
{
return;
}
foreach (var binding in bindings)
{
view.AddBinding(binding);
}
}
public static void AddBindings(this IMvxBindingContextOwner view, object target, IEnumerable <IMvxUpdateableBinding> bindings, object clearKey = null)
{
if (bindings == null)
{
return;
}
foreach (var binding in bindings)
{
view.AddBinding(target, binding, clearKey);
}
}
private static void Bind(this IMvxBindingContextOwner bindingOwner, object target, IMvxValueConverter converter,
object converterParameter, object fallbackValue, MvxBindingMode mode,
string parsedTargetPath, string parsedSourcePath)
{
var description = new MvxBindingDescription
{
TargetName = parsedTargetPath,
SourcePropertyPath = parsedSourcePath,
Converter = converter,
ConverterParameter = converterParameter,
FallbackValue = fallbackValue,
Mode = mode
};
bindingOwner.AddBinding(target, description);
}
// add whenever something changes
public static void AddLinqBinding <TViewModel, TProperty>(
this IMvxBindingContextOwner owner,
TViewModel viewModel,
Expression <Func <TViewModel, TProperty> > propertyExpression,
Action <TProperty> action) where TViewModel : INotifyPropertyChanged
{
//Action createBinding = () =>
// {
var propertyInfo = GetPropertyInfoFromExpression <TViewModel, TProperty>(propertyExpression);
var binding = new LinqBinding <TViewModel, TProperty>(viewModel, propertyInfo, action);
owner.AddBinding(owner, binding);
//owner.CreateBinding(binding);
// };
//viewModel.PropertyChanged += (sender, args) =>
// createBinding();
//createBinding();
}
public static void BindFont(this IMvxBindingContextOwner owner
, object target
, string sourceKey
)
{
//lookup the converter
var converter = MvxBindingSingletonCache.Instance.ValueConverterLookup.Find("FontResource");
var bindingDescription = new MvxBindingDescription
{
TargetName = "Font",
Source = new MvxPathSourceStepDescription
{
SourcePropertyPath = "AssetProvider",
Converter = converter,
ConverterParameter = sourceKey
},
Mode = MvxBindingMode.OneTime
};
owner.AddBinding(target, bindingDescription);
}