public static DependencyProperty Register(
string name,
Type propertyType,
Type ownerType,
PropertyMetadata typeMetadata,
ValidateValueCallback validateValueCallback)
{
PropertyMetadata defaultMetadata;
if (typeMetadata == null)
{
defaultMetadata = typeMetadata = new PropertyMetadata();
}
else
{
defaultMetadata = new PropertyMetadata(typeMetadata.DefaultValue);
}
DependencyProperty dp = new DependencyProperty(
false,
name,
propertyType,
ownerType,
defaultMetadata,
validateValueCallback);
DependencyObject.Register(ownerType, dp);
dp.OverrideMetadata(ownerType, typeMetadata);
return dp;
}
public static DependencyProperty Register(
string name,
Type propertyType,
Type ownerType,
PropertyMetadata typeMetadata)
{
return Register(name, propertyType, ownerType, typeMetadata, null);
}
/// <summary>
/// Merges the metadata with the base metadata.
/// </summary>
/// <param name="baseMetadata">The base metadata to merge.</param>
/// <param name="property">The property to which the metadata is being applied.</param>
public virtual void Merge(
PropertyMetadata baseMetadata,
AvaloniaProperty property)
{
if (_defaultBindingMode == BindingMode.Default)
{
_defaultBindingMode = baseMetadata.DefaultBindingMode;
}
}
private DependencyProperty(
bool isAttached,
string name,
Type propertyType,
Type ownerType,
PropertyMetadata defaultMetadata,
ValidateValueCallback validateValueCallback)
{
if (defaultMetadata == null)
{
throw new ArgumentNullException("defaultMetadata");
}
this.IsAttached = isAttached;
this.DefaultMetadata = defaultMetadata;
this.Name = name;
this.OwnerType = ownerType;
this.PropertyType = propertyType;
this.ValidateValueCallback = validateValueCallback;
}
public void OverrideMetadata(Type forType, PropertyMetadata typeMetadata)
{
this.dependencyProperty.OverrideMetadata(forType, typeMetadata, this);
}
public void OverrideMetadata(Type forType, PropertyMetadata typeMetadata, DependencyPropertyKey key)
{
if (forType == null)
{
throw new ArgumentNullException("forType");
}
if (typeMetadata == null)
{
throw new ArgumentNullException("typeMetadata");
}
// further checking? should we check
// key.DependencyProperty == this?
typeMetadata.Merge(this.DefaultMetadata, this, forType);
this.metadataByType.Add(forType, typeMetadata);
}
public void OverrideMetadata(Type forType, PropertyMetadata typeMetadata)
{
if (forType == null)
{
throw new ArgumentNullException("forType");
}
if (typeMetadata == null)
{
throw new ArgumentNullException("typeMetadata");
}
if (this.ReadOnly)
{
throw new InvalidOperationException(string.Format("Cannot override metadata on readonly property '{0}' without using a DependencyPropertyKey", this.Name));
}
typeMetadata.Merge(this.DefaultMetadata, this, forType);
this.metadataByType.Add(forType, typeMetadata);
}
public static DependencyPropertyKey RegisterReadOnly(
string name,
Type propertyType,
Type ownerType,
PropertyMetadata typeMetadata,
ValidateValueCallback validateValueCallback)
{
DependencyProperty prop = Register(name, propertyType, ownerType, typeMetadata, validateValueCallback);
prop.ReadOnly = true;
return new DependencyPropertyKey(prop);
}
public DependencyProperty AddOwner(Type ownerType, PropertyMetadata typeMetadata)
{
if (typeMetadata == null)
{
typeMetadata = new PropertyMetadata();
}
this.OverrideMetadata(ownerType, typeMetadata);
DependencyObject.Register(ownerType, this);
// MS seems to always return the same DependencyProperty
return this;
}
public static DependencyPropertyKey RegisterAttachedReadOnly(
string name,
Type propertyType,
Type ownerType,
PropertyMetadata defaultMetadata,
ValidateValueCallback validateValueCallback)
{
throw new NotImplementedException("RegisterAttachedReadOnly(string name, Type propertyType, Type ownerType, PropertyMetadata defaultMetadata, ValidateValueCallback validateValueCallback)");
}
public static DependencyProperty RegisterAttached(
string name,
Type propertyType,
Type ownerType,
PropertyMetadata defaultMetadata,
ValidateValueCallback validateValueCallback)
{
if (defaultMetadata == null)
{
defaultMetadata = new PropertyMetadata();
}
DependencyProperty dp = new DependencyProperty(
true,
name,
propertyType,
ownerType,
defaultMetadata,
validateValueCallback);
DependencyObject.Register(ownerType, dp);
return dp;
}
public static DependencyProperty RegisterAttached(
string name,
Type propertyType,
Type ownerType,
PropertyMetadata defaultMetadata)
{
return RegisterAttached(name, propertyType, ownerType, defaultMetadata, null);
}
protected virtual void Merge(PropertyMetadata baseMetadata, DependencyProperty dp)
{
if (this.defaultValue == null)
{
this.defaultValue = baseMetadata.defaultValue;
}
if (this.propertyChangedCallback == null)
{
this.propertyChangedCallback = baseMetadata.propertyChangedCallback;
}
if (this.coerceValueCallback == null)
{
this.coerceValueCallback = baseMetadata.coerceValueCallback;
}
}
internal void Merge(PropertyMetadata baseMetadata, DependencyProperty dp, Type targetType)
{
this.Merge(baseMetadata, dp);
this.OnApply(dp, targetType);
this.isSealed = true;
}