Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / wpf / src / Framework / System / Windows / Markup / BamlCollectionHolder.cs / 1 / BamlCollectionHolder.cs
/****************************************************************************\
*
* File: BamlCollectionHolder.cs
*
* Copyright (C) 2003 by Microsoft Corporation. All rights reserved.
*
\***************************************************************************/
using System;
using System.Collections;
using System.Reflection;
namespace System.Windows.Markup
{
// Helper class that holds a collection for a property. This class
// replaces the old BamlDictionaryHolder and BamlArrayHolder classes
internal class BamlCollectionHolder
{
internal BamlCollectionHolder()
{
}
internal BamlCollectionHolder(BamlRecordReader reader, object parent, short attributeId) :
this(reader, parent, attributeId, true)
{
}
internal BamlCollectionHolder(BamlRecordReader reader, object parent, short attributeId, bool needDefault)
{
_reader = reader;
_parent = parent;
_propDef = new PropertyDefinition(reader, attributeId, parent is DependencyObject);
_attributeId = attributeId;
if (needDefault)
{
InitDefaultValue();
}
CheckReadOnly();
}
// the collection stored for a given property
internal object Collection
{
get { return _collection; }
set { _collection = value; }
}
// helper that casts the collection as an IList
internal IList List
{
get { return _collection as IList; }
}
// helper that casts the collection as an IDictionary
internal IDictionary Dictionary
{
get { return _collection as IDictionary; }
}
// helper that casts the collection as an ArrayExtension
internal ArrayExtension ArrayExt
{
get { return _collection as ArrayExtension; }
}
// the default collection to be used in case the property does not have an explicit tag
internal object DefaultCollection
{
get { return _defaultCollection; }
}
// the PropertyDefinition associated with the BamlCollectionHolder's property
internal PropertyDefinition PropertyDefinition
{
get { return _propDef; }
}
// the return type of the BamlCollectionHolder's property's getter
internal Type PropertyType
{
get
{
return _resourcesParent != null ? typeof(ResourceDictionary) : PropertyDefinition.PropertyType;
}
}
// the parent object of this collection holder
internal object Parent
{
get { return _parent; }
}
// returns true if the property cannot be set
internal bool ReadOnly
{
get { return _readonly; }
set { _readonly = value; }
}
// returns true if the property has an explicit tag, so items should not be added to it directly
internal bool IsClosed
{
get { return _isClosed; }
set { _isClosed = value; }
}
internal string AttributeName
{
get
{
return _reader.GetPropertyNameFromAttributeId(_attributeId);
}
}
// set the property associated with the collection holder to the value of the holder's collection
internal void SetPropertyValue()
{
// Do if the property value has not been set before this
if (!_isPropertyValueSet)
{
_isPropertyValueSet = true;
// the order of precedence is the fast-tracked Resources property, then DP, then the attached property
// setter, then the property info
if (_resourcesParent != null)
{
_resourcesParent.Resources = (ResourceDictionary)Collection;
}
else if (PropertyDefinition.DependencyProperty != null)
{
DependencyObject dpParent = Parent as DependencyObject;
if (dpParent == null)
{
_reader.ThrowException(SRID.ParserParentDO, Parent.ToString());
}
_reader.SetDependencyValue(dpParent, PropertyDefinition.DependencyProperty, Collection);
}
else if (PropertyDefinition.AttachedPropertySetter != null)
{
PropertyDefinition.AttachedPropertySetter.Invoke(null, new object[] { Parent, Collection });
}
else if (PropertyDefinition.PropertyInfo != null)
{
PropertyDefinition.PropertyInfo.SetValue(Parent,
Collection, BindingFlags.Instance |
BindingFlags.Public | BindingFlags.FlattenHierarchy,
null, null, XamlReaderHelper.EnglishUSCulture);
}
else
{
_reader.ThrowException(SRID.ParserCantGetDPOrPi, AttributeName);
}
}
}
// Initialize the collection holder, by setting its property definition and default value (retrieved
// from the property definition).
internal void InitDefaultValue()
{
if (AttributeName == "Resources" &&
Parent is IHaveResources)
{
// "Fast Path" handling of Resources non-DP property
_resourcesParent = ((IHaveResources)Parent);
_defaultCollection = _resourcesParent.Resources;
}
// the order of precedence according to the spec is DP, then attached property, then PropertyInfo
else if (PropertyDefinition.DependencyProperty != null)
{
_defaultCollection = ((DependencyObject)Parent).GetValue(PropertyDefinition.DependencyProperty);
}
else if (PropertyDefinition.AttachedPropertyGetter != null)
{
_defaultCollection = PropertyDefinition.AttachedPropertyGetter.Invoke(null, new object[] { Parent });
}
else if (PropertyDefinition.PropertyInfo != null)
{
if (PropertyDefinition.IsInternal)
{
_defaultCollection = XamlTypeMapper.GetInternalPropertyValue(_reader.ParserContext,
_reader.ParserContext.RootElement,
PropertyDefinition.PropertyInfo,
Parent);
if (_defaultCollection == null)
{
_reader.ThrowException(SRID.ParserCantGetProperty, PropertyDefinition.Name);
}
}
else
{
_defaultCollection = PropertyDefinition.PropertyInfo.GetValue(
Parent, BindingFlags.Instance |
BindingFlags.Public | BindingFlags.FlattenHierarchy,
null, null, XamlReaderHelper.EnglishUSCulture);
}
}
else
{
_reader.ThrowException(SRID.ParserCantGetDPOrPi, AttributeName);
}
}
private void CheckReadOnly()
{
if (_resourcesParent == null &&
(PropertyDefinition.DependencyProperty == null || PropertyDefinition.DependencyProperty.ReadOnly) &&
(PropertyDefinition.PropertyInfo == null || !PropertyDefinition.PropertyInfo.CanWrite) &&
PropertyDefinition.AttachedPropertySetter == null)
{
if (DefaultCollection == null)
{
// if the property is read-only and has a null default value, throw an exception
_reader.ThrowException(SRID.ParserReadOnlyNullProperty, PropertyDefinition.Name);
}
// the property is read-only, so we have to use its default value as the dictionary
ReadOnly = true;
Collection = DefaultCollection;
}
}
private object _collection;
private object _defaultCollection;
private short _attributeId;
private PropertyDefinition _propDef;
private object _parent;
private BamlRecordReader _reader;
private IHaveResources _resourcesParent; // for fast-tracking Resources properties
private bool _readonly;
private bool _isClosed;
private bool _isPropertyValueSet;
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
/****************************************************************************\
*
* File: BamlCollectionHolder.cs
*
* Copyright (C) 2003 by Microsoft Corporation. All rights reserved.
*
\***************************************************************************/
using System;
using System.Collections;
using System.Reflection;
namespace System.Windows.Markup
{
// Helper class that holds a collection for a property. This class
// replaces the old BamlDictionaryHolder and BamlArrayHolder classes
internal class BamlCollectionHolder
{
internal BamlCollectionHolder()
{
}
internal BamlCollectionHolder(BamlRecordReader reader, object parent, short attributeId) :
this(reader, parent, attributeId, true)
{
}
internal BamlCollectionHolder(BamlRecordReader reader, object parent, short attributeId, bool needDefault)
{
_reader = reader;
_parent = parent;
_propDef = new PropertyDefinition(reader, attributeId, parent is DependencyObject);
_attributeId = attributeId;
if (needDefault)
{
InitDefaultValue();
}
CheckReadOnly();
}
// the collection stored for a given property
internal object Collection
{
get { return _collection; }
set { _collection = value; }
}
// helper that casts the collection as an IList
internal IList List
{
get { return _collection as IList; }
}
// helper that casts the collection as an IDictionary
internal IDictionary Dictionary
{
get { return _collection as IDictionary; }
}
// helper that casts the collection as an ArrayExtension
internal ArrayExtension ArrayExt
{
get { return _collection as ArrayExtension; }
}
// the default collection to be used in case the property does not have an explicit tag
internal object DefaultCollection
{
get { return _defaultCollection; }
}
// the PropertyDefinition associated with the BamlCollectionHolder's property
internal PropertyDefinition PropertyDefinition
{
get { return _propDef; }
}
// the return type of the BamlCollectionHolder's property's getter
internal Type PropertyType
{
get
{
return _resourcesParent != null ? typeof(ResourceDictionary) : PropertyDefinition.PropertyType;
}
}
// the parent object of this collection holder
internal object Parent
{
get { return _parent; }
}
// returns true if the property cannot be set
internal bool ReadOnly
{
get { return _readonly; }
set { _readonly = value; }
}
// returns true if the property has an explicit tag, so items should not be added to it directly
internal bool IsClosed
{
get { return _isClosed; }
set { _isClosed = value; }
}
internal string AttributeName
{
get
{
return _reader.GetPropertyNameFromAttributeId(_attributeId);
}
}
// set the property associated with the collection holder to the value of the holder's collection
internal void SetPropertyValue()
{
// Do if the property value has not been set before this
if (!_isPropertyValueSet)
{
_isPropertyValueSet = true;
// the order of precedence is the fast-tracked Resources property, then DP, then the attached property
// setter, then the property info
if (_resourcesParent != null)
{
_resourcesParent.Resources = (ResourceDictionary)Collection;
}
else if (PropertyDefinition.DependencyProperty != null)
{
DependencyObject dpParent = Parent as DependencyObject;
if (dpParent == null)
{
_reader.ThrowException(SRID.ParserParentDO, Parent.ToString());
}
_reader.SetDependencyValue(dpParent, PropertyDefinition.DependencyProperty, Collection);
}
else if (PropertyDefinition.AttachedPropertySetter != null)
{
PropertyDefinition.AttachedPropertySetter.Invoke(null, new object[] { Parent, Collection });
}
else if (PropertyDefinition.PropertyInfo != null)
{
PropertyDefinition.PropertyInfo.SetValue(Parent,
Collection, BindingFlags.Instance |
BindingFlags.Public | BindingFlags.FlattenHierarchy,
null, null, XamlReaderHelper.EnglishUSCulture);
}
else
{
_reader.ThrowException(SRID.ParserCantGetDPOrPi, AttributeName);
}
}
}
// Initialize the collection holder, by setting its property definition and default value (retrieved
// from the property definition).
internal void InitDefaultValue()
{
if (AttributeName == "Resources" &&
Parent is IHaveResources)
{
// "Fast Path" handling of Resources non-DP property
_resourcesParent = ((IHaveResources)Parent);
_defaultCollection = _resourcesParent.Resources;
}
// the order of precedence according to the spec is DP, then attached property, then PropertyInfo
else if (PropertyDefinition.DependencyProperty != null)
{
_defaultCollection = ((DependencyObject)Parent).GetValue(PropertyDefinition.DependencyProperty);
}
else if (PropertyDefinition.AttachedPropertyGetter != null)
{
_defaultCollection = PropertyDefinition.AttachedPropertyGetter.Invoke(null, new object[] { Parent });
}
else if (PropertyDefinition.PropertyInfo != null)
{
if (PropertyDefinition.IsInternal)
{
_defaultCollection = XamlTypeMapper.GetInternalPropertyValue(_reader.ParserContext,
_reader.ParserContext.RootElement,
PropertyDefinition.PropertyInfo,
Parent);
if (_defaultCollection == null)
{
_reader.ThrowException(SRID.ParserCantGetProperty, PropertyDefinition.Name);
}
}
else
{
_defaultCollection = PropertyDefinition.PropertyInfo.GetValue(
Parent, BindingFlags.Instance |
BindingFlags.Public | BindingFlags.FlattenHierarchy,
null, null, XamlReaderHelper.EnglishUSCulture);
}
}
else
{
_reader.ThrowException(SRID.ParserCantGetDPOrPi, AttributeName);
}
}
private void CheckReadOnly()
{
if (_resourcesParent == null &&
(PropertyDefinition.DependencyProperty == null || PropertyDefinition.DependencyProperty.ReadOnly) &&
(PropertyDefinition.PropertyInfo == null || !PropertyDefinition.PropertyInfo.CanWrite) &&
PropertyDefinition.AttachedPropertySetter == null)
{
if (DefaultCollection == null)
{
// if the property is read-only and has a null default value, throw an exception
_reader.ThrowException(SRID.ParserReadOnlyNullProperty, PropertyDefinition.Name);
}
// the property is read-only, so we have to use its default value as the dictionary
ReadOnly = true;
Collection = DefaultCollection;
}
}
private object _collection;
private object _defaultCollection;
private short _attributeId;
private PropertyDefinition _propDef;
private object _parent;
private BamlRecordReader _reader;
private IHaveResources _resourcesParent; // for fast-tracking Resources properties
private bool _readonly;
private bool _isClosed;
private bool _isPropertyValueSet;
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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