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//
// System.ComponentModel.Design.Serialization.EventCodeDomSerializer
//
// Authors:
// Ivan N. Zlatev (contact i-nZ.net)
//
// (C) 2007 Ivan N. Zlatev
//
// 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.ComponentModel;
using System.ComponentModel.Design;
using System.CodeDom;
namespace System.ComponentModel.Design.Serialization
{
internal class EventCodeDomSerializer : MemberCodeDomSerializer
{
private CodeThisReferenceExpression _thisReference;
public EventCodeDomSerializer ()
{
// don't waste memory on something that is constant when generating the
// event codedom code - keep it as a field.
_thisReference = new CodeThisReferenceExpression ();
}
public override void Serialize (IDesignerSerializationManager manager, object value, MemberDescriptor descriptor,
CodeStatementCollection statements)
{
if (statements == null)
throw new ArgumentNullException ("statements");
if (manager == null)
throw new ArgumentNullException ("manager");
if (value == null)
throw new ArgumentNullException ("value");
if (descriptor == null)
throw new ArgumentNullException ("descriptor");
IEventBindingService service = manager.GetService (typeof (IEventBindingService)) as IEventBindingService;
if (service != null) {
EventDescriptor eventDescriptor = (EventDescriptor) descriptor;
string methodName = (string) service.GetEventProperty (eventDescriptor).GetValue (value);
if (methodName != null) {
CodeDelegateCreateExpression listener = new CodeDelegateCreateExpression (new CodeTypeReference (eventDescriptor.EventType),
_thisReference, methodName);
CodeExpression targetObject = base.SerializeToExpression (manager, value);
CodeEventReferenceExpression eventRef = new CodeEventReferenceExpression (targetObject, eventDescriptor.Name);
statements.Add (new CodeAttachEventStatement (eventRef, listener));
}
}
}
public override bool ShouldSerialize (IDesignerSerializationManager manager, object value, MemberDescriptor descriptor)
{
IEventBindingService service = manager.GetService (typeof (IEventBindingService)) as IEventBindingService;
if (service != null) // serialize only if there is an event to serialize
return service.GetEventProperty ((EventDescriptor)descriptor).GetValue (value) != null;
return false;
}
}
}
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