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//
// System.Web.Compilation.PersonalizableAttribute
//
// Authors:
// Marek Habersack (grendello@gmail.com)
//
// (C) 2006 Marek Habersack
//
//
// 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.Reflection;
namespace System.Web.UI.WebControls.WebParts
{
[AttributeUsageAttribute(AttributeTargets.Property)]
public sealed class PersonalizableAttribute : Attribute
{
public static readonly PersonalizableAttribute Default;
public static readonly PersonalizableAttribute NotPersonalizable;
public static readonly PersonalizableAttribute Personalizable;
public static readonly PersonalizableAttribute SharedPersonalizable;
public static readonly PersonalizableAttribute UserPersonalizable;
bool isPersonalizable;
bool isSensitive;
PersonalizationScope scope;
static PersonalizableAttribute ()
{
Default = new PersonalizableAttribute (false);
NotPersonalizable = Default;
Personalizable = new PersonalizableAttribute (PersonalizationScope.User, false);
SharedPersonalizable = new PersonalizableAttribute (PersonalizationScope.Shared, false);
UserPersonalizable = new PersonalizableAttribute (PersonalizationScope.User, false);
}
public PersonalizableAttribute () : this (true)
{
}
public PersonalizableAttribute (bool isPersonalizable)
{
this.isPersonalizable = isPersonalizable;
this.scope = PersonalizationScope.User;
this.isSensitive = false;
}
public PersonalizableAttribute (PersonalizationScope scope) : this (scope, false)
{
}
public PersonalizableAttribute (PersonalizationScope scope, bool isSensitive)
{
this.isPersonalizable = true;
this.scope = scope;
this.isSensitive = isSensitive;
}
public bool IsPersonalizable {
get { return isPersonalizable; }
}
public bool IsSensitive {
get { return isSensitive; }
}
public PersonalizationScope Scope {
get { return scope; }
}
public override bool Equals (object obj)
{
PersonalizableAttribute attr = obj as PersonalizableAttribute;
if (attr == null)
return false;
return (this.isPersonalizable == attr.IsPersonalizable &&
this.isSensitive == attr.IsSensitive &&
this.scope == attr.Scope);
}
public override int GetHashCode ()
{
return (this.isPersonalizable.GetHashCode () ^
this.isSensitive.GetHashCode () ^
this.scope.GetHashCode ());
}
public static ICollection GetPersonalizableProperties (Type type)
{
if (type == null)
throw new ArgumentNullException ("type");
PropertyInfo[] properties = type.GetProperties ();
if (properties == null || properties.Length == 0)
return new PropertyInfo [0];
List <PropertyInfo> ret = null;
foreach (PropertyInfo pi in properties)
if (PropertyQualifies (pi)) {
if (ret == null)
ret = new List <PropertyInfo> ();
ret.Add (pi);
}
return ret;
}
static bool PropertyQualifies (PropertyInfo pi)
{
object[] attributes = pi.GetCustomAttributes (false);
if (attributes == null || attributes.Length == 0)
return false;
PersonalizableAttribute attr;
MethodInfo mi;
foreach (object a in attributes) {
attr = a as PersonalizableAttribute;
if (attr == null || !attr.IsPersonalizable)
continue;
mi = pi.GetSetMethod (false);
if (mi == null)
throw new HttpException ("A public property on the type is marked as personalizable but is read-only.");
return true;
}
return false;
}
public override bool IsDefaultAttribute ()
{
return PersonalizableAttribute.Equals (this, Default);
}
public override bool Match (object obj)
{
PersonalizableAttribute attr = obj as PersonalizableAttribute;
if (obj == null)
return false;
return (this.isPersonalizable == attr.IsPersonalizable);
}
}
}
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