88 lines
3.4 KiB
C#
88 lines
3.4 KiB
C#
//
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// System.ComponentModel.Design.Serialization.EventCodeDomSerializer
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//
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// Authors:
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// Ivan N. Zlatev (contact i-nZ.net)
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//
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// (C) 2007 Ivan N. Zlatev
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.ComponentModel;
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using System.ComponentModel.Design;
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using System.CodeDom;
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namespace System.ComponentModel.Design.Serialization
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{
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internal class EventCodeDomSerializer : MemberCodeDomSerializer
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{
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private CodeThisReferenceExpression _thisReference;
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public EventCodeDomSerializer ()
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{
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// don't waste memory on something that is constant when generating the
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// event codedom code - keep it as a field.
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_thisReference = new CodeThisReferenceExpression ();
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}
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public override void Serialize (IDesignerSerializationManager manager, object value, MemberDescriptor descriptor,
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CodeStatementCollection statements)
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{
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if (statements == null)
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throw new ArgumentNullException ("statements");
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if (manager == null)
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throw new ArgumentNullException ("manager");
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if (value == null)
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throw new ArgumentNullException ("value");
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if (descriptor == null)
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throw new ArgumentNullException ("descriptor");
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IEventBindingService service = manager.GetService (typeof (IEventBindingService)) as IEventBindingService;
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if (service != null) {
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EventDescriptor eventDescriptor = (EventDescriptor) descriptor;
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string methodName = (string) service.GetEventProperty (eventDescriptor).GetValue (value);
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if (methodName != null) {
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CodeDelegateCreateExpression listener = new CodeDelegateCreateExpression (new CodeTypeReference (eventDescriptor.EventType),
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_thisReference, methodName);
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CodeExpression targetObject = base.SerializeToExpression (manager, value);
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CodeEventReferenceExpression eventRef = new CodeEventReferenceExpression (targetObject, eventDescriptor.Name);
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statements.Add (new CodeAttachEventStatement (eventRef, listener));
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}
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}
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}
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public override bool ShouldSerialize (IDesignerSerializationManager manager, object value, MemberDescriptor descriptor)
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{
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IEventBindingService service = manager.GetService (typeof (IEventBindingService)) as IEventBindingService;
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if (service != null) // serialize only if there is an event to serialize
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return service.GetEventProperty ((EventDescriptor)descriptor).GetValue (value) != null;
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return false;
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}
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}
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}
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