public ViewModelBinding(ConsoleControl control, PropertyInfo controlProperty, ObservableObject viewModel, string observablePropertyName)
{
var viewModelObservableProperty = viewModel.GetType().GetProperty(observablePropertyName);
if (viewModelObservableProperty.PropertyType != controlProperty.PropertyType &&
viewModelObservableProperty.PropertyType.IsSubclassOf(controlProperty.PropertyType) == false &&
viewModelObservableProperty.PropertyType.GetInterfaces().Contains(controlProperty.PropertyType) == false)
{
throw new InvalidOperationException($"ViewModel property '{viewModel.GetType().FullName}.{observablePropertyName}' of type {viewModelObservableProperty.PropertyType.FullName} is not compatible with control property '{controlProperty.DeclaringType.FullName}.{controlProperty.Name}' of type {controlProperty.PropertyType.FullName} ");
}
viewModel.SynchronizeForLifetime(observablePropertyName, () =>
{
var newValue = viewModelObservableProperty.GetValue(viewModel);
if (newValue == latestValue)
{
return;
}
latestValue = newValue;
controlProperty.SetValue(control, newValue);
}, control.LifetimeManager);
control.SubscribeForLifetime(controlProperty.Name, () =>
{
var newValue = controlProperty.GetValue(control);
if (newValue == latestValue)
{
return;
}
latestValue = newValue;
viewModelObservableProperty.SetValue(viewModel, newValue);
}, control.LifetimeManager);
}
public ViewModelBinding(ConsoleControl control, PropertyInfo controlProperty, ObservableObject viewModel, string observablePath, Func <object, object> mapper, Func <object, object> reverseMapper)
{
this.mapper = mapper;
this.reverseMapper = reverseMapper;
var exp = ObjectPathExpression.Parse(observablePath);
var trace = exp.EvaluateAndTraceInfo(viewModel);
var observableObject = trace[trace.Count - 2].Value as ObservableObject;
var viewModelObservableProperty = trace.Last()?.MemberInfo as PropertyInfo;
if (observableObject == null)
{
throw new InvalidOperationException($"ViewModel property '{viewModel.GetType().FullName}.{observablePath}' is not observable");
}
if (viewModelObservableProperty == null)
{
throw new InvalidOperationException($"Cannot resolve ViewModel property '{viewModel.GetType().FullName}.{observablePath}'");
}
if (mapper != null && reverseMapper != null)
{
if (viewModelObservableProperty.PropertyType != controlProperty.PropertyType &&
viewModelObservableProperty.PropertyType.IsSubclassOf(controlProperty.PropertyType) == false &&
viewModelObservableProperty.PropertyType.GetInterfaces().Contains(controlProperty.PropertyType) == false)
{
throw new InvalidOperationException($"ViewModel type '{viewModel.GetType().FullName} property {observablePath}' of type {viewModelObservableProperty.PropertyType.FullName} is not compatible with control property '{controlProperty.DeclaringType.FullName}.{controlProperty.Name}' of type {controlProperty.PropertyType.FullName} ");
}
}
observableObject.SynchronizeForLifetime(trace.Last().MemberInfo.Name, () =>
{
var newValue = viewModelObservableProperty.GetValue(observableObject);
if (newValue == latestValue)
{
return;
}
latestValue = newValue;
controlProperty.SetValue(control, mapper != null ? mapper(newValue) : newValue);
}, control.LifetimeManager);
control.SubscribeForLifetime(controlProperty.Name, () =>
{
var newValue = controlProperty.GetValue(control);
if (newValue == latestValue)
{
return;
}
latestValue = newValue;
viewModelObservableProperty.SetValue(observableObject, reverseMapper != null ? reverseMapper(newValue) : newValue);
}, control.LifetimeManager);
}
public static ViewModelBinding OneWayBind <TControlPropertyType, TDataPropertyType>(ConsoleControl control, string propertyName, ObservableObject viewModel, string observablePath, Func <TDataPropertyType, TControlPropertyType> map)
{
ViewModelBinding ret = new ViewModelBinding(control, control.GetType().GetProperty(propertyName), viewModel, observablePath, (v) =>
{
return(map((TDataPropertyType)v));
}, null);
return(ret);
}
public ViewModelBinding(ConsoleControl control, PropertyInfo controlProperty, ObservableObject viewModel, string observablePath) : this(control, controlProperty, viewModel, observablePath, null, null)
{
}
public ViewModelBinding(ConsoleControl control, string propertyName, ObservableObject viewModel, string observablePath) : this(control, control.GetType().GetProperty(propertyName), viewModel, observablePath)
{
}
