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//
// Copyright (C) 2010 Novell Inc. http://novell.com
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Reflection;
using System.Windows.Markup;
using System.Xaml.Schema;
namespace System.Windows.Markup
{
[MarkupExtensionReturnType (typeof (Array))]
[ContentProperty ("Items")]
[System.Runtime.CompilerServices.TypeForwardedFrom (Consts.AssemblyPresentationFramework_3_5)]
public class ArrayExtension : MarkupExtension
{
public ArrayExtension ()
{
Items = new List<object> ();
}
public ArrayExtension (Array elements)
{
if (elements == null)
throw new ArgumentNullException ("elements");
Type = elements.GetType ().GetElementType ();
Items = new List<object> (elements.Length);
foreach (var o in elements)
Items.Add (o);
}
public ArrayExtension (Type arrayType)
{
if (arrayType == null)
throw new ArgumentNullException ("arrayType");
Type = arrayType;
Items = new List<object> ();
}
public IList Items { get; private set; }
[ConstructorArgument ("arrayType")]
public Type Type { get; set; }
public void AddChild (Object value)
{
// null is allowed.
Items.Add (value);
}
public void AddText (string text)
{
// null is allowed.
Items.Add (text);
}
[MonoTODO ("use serviceProvider argument")]
public override Object ProvideValue (IServiceProvider serviceProvider)
{
if (Type == null)
throw new InvalidOperationException ("Type property must be set before calling ProvideValue method");
bool invalid = false;
foreach (var item in Items) {
if (item == null) {
if (Type.IsValueType)
invalid = true;
}
else if (!Type.IsAssignableFrom (item.GetType ()))
invalid = true;
if (invalid)
throw new InvalidOperationException (String.Format ("Item in the array must be an instance of '{0}'", Type));
}
Array a = Array.CreateInstance (Type, Items.Count);
Items.CopyTo (a, 0);
return a;
}
}
}
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