private bool OnSetLockedField <T>(string propertyName, ref ValueLocker <T> lockedField, T value, bool raiseOnlyIfNotEquals)
{
if (propertyName == null)
{
throw new ArgumentNullException("propertyName");
}
T oldValue = OnGetLockedField(ref lockedField, propertyName);
if (
raiseOnlyIfNotEquals
&&
(
(lockedField == null && value == null) ||
(lockedField != null && lockedField.ObjectLocked == null && value == null) ||
(lockedField != null && lockedField.ObjectLocked != null && lockedField.ObjectLocked.Equals(value))
)
)
{
return(false);
}
//if (!OnRaisePropertyChanging(propertyName, oldValue, value)) return false;
if (lockedField == null)
{
lockedField = new ValueLocker <T>(value);
}
else
{
lockedField.WriteRef(value);
}
OnRaisePropertyChanged(propertyName, oldValue, value);
return(true);
}
private bool OnSetLockedValue <T>(T value, bool raiseOnlyIfNotEquals = true, [CallerMemberName] string propertyName = null)
{
if (propertyName == null)
{
throw new ArgumentNullException("propertyName");
}
ValueLocker <T> oldLockerValue;
if (PropertiesDictionary.ContainsKey(GetPropertyKey(propertyName)))
{
oldLockerValue = GetLockerProperty <T>(propertyName: propertyName);
//OnRaisePropertyRead(propertyName, oldLockerValue.ObjectLocked);
}
else
{
// oldLockerValue = new ValueLocker<T>((T)GetType().GetProperty(propertyName, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static).GetValue(this, null));
oldLockerValue = new ValueLocker <T>((T)GetType().GetTypeInfo().GetAllProperties().Single(p => p.Name == propertyName).GetValue(this, null));
PropertiesDictionary[GetPropertyKey(propertyName)] = oldLockerValue;
}
if (raiseOnlyIfNotEquals && ((oldLockerValue == null && value == null) || EqualityComparer <T> .Default.Equals(oldLockerValue.ObjectLocked, value)))
{
return(false);
}
T oldValue = oldLockerValue.ObjectLocked;
//if (!OnRaisePropertyChanging(propertyName, oldValue, value)) return false;
((ValueLocker <T>)PropertiesDictionary[GetPropertyKey(propertyName)]).WriteRef(value);
OnRaisePropertyChanged(propertyName, oldValue, value);
return(true);
}
private T OnGetLockedField <T>(ref ValueLocker <T> lockedField, [CallerMemberName] string propertyName = null)
{
if (propertyName == null)
{
throw new ArgumentNullException("propertyName");
}
T value = lockedField == null ? default(T) : lockedField.ObjectLocked;
//T interceptedValue = OnRaisePropertyRead(propertyName, value);
//if (EqualityComparer<T>.Default.Equals(value, interceptedValue)) return interceptedValue;
//if (lockedField == null) lockedField = new ValueLocker<T>(interceptedValue);
//else lockedField.WriteRef(interceptedValue);
//return interceptedValue;
return(value);
}
private T OnGetLockedValue <T>(Func <T> defaultValueFunction = null, [CallerMemberName] string propertyName = null)
{
if (propertyName == null)
{
throw new ArgumentNullException("propertyName");
}
ValueLocker <T> locker = GetLockerProperty(defaultValueFunction, propertyName);
T value = locker.ObjectLocked;
//T interceptedValue = OnRaisePropertyRead(propertyName, value);
//if (!EqualityComparer<T>.Default.Equals(value, interceptedValue))
// ((ValueLocker<T>)PropertiesDictionary[propertyName]).WriteRef(interceptedValue);
//return interceptedValue;
return(value);
}
private ValueLocker <T> GetLockerProperty <T>(Func <T> defaultValueFunction = null, [CallerMemberName] string propertyName = null)
{
if (propertyName == null)
{
throw new ArgumentNullException("propertyName");
}
object objValue;
if (PropertiesDictionary.TryGetValue(GetPropertyKey(propertyName), out objValue))
{
return((ValueLocker <T>)objValue);
}
T defaultValue = defaultValueFunction == null ? default(T) : defaultValueFunction();
var defaultLocker = new ValueLocker <T>(defaultValue);
PropertiesDictionary[GetPropertyKey(propertyName)] = defaultLocker;
return(defaultLocker);
}
protected string GetLockedField(ref ValueLocker <string> lockedField, [CallerMemberName] string propertyName = null)
{
return(OnGetLockedField(ref lockedField, propertyName));
}
protected T GetLockedField <T>(ref ValueLocker <T> lockedField, [CallerMemberName] string propertyName = null) where T : struct
{
return(OnGetLockedField(ref lockedField, propertyName));
}
protected bool SetLockedField(ref ValueLocker <string> lockedField, string value, bool raiseOnlyIfNotEquals = true, [CallerMemberName] String propertyName = null)
{
return(OnSetLockedField(propertyName, ref lockedField, value, raiseOnlyIfNotEquals));
}
protected bool SetLockedField <T>(ref ValueLocker <T> lockedField, T value, bool raiseOnlyIfNotEquals = true, [CallerMemberName] String propertyName = null) where T : struct
{
return(OnSetLockedField(propertyName, ref lockedField, value, raiseOnlyIfNotEquals));
}