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//
// System.ComponentModel.Design.DesignerEventService
//
// Authors:
// Ivan N. Zlatev (contact i-nZ.net)
//
// (C) 2006-2007 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.Collections;
namespace System.ComponentModel.Design
{
// IDesignerEventService provides a global eventing mechanism for designer events. With this mechanism,
// an application is informed when a designer becomes active. The service provides a collection of
// designers and a single place where global objects, such as the Properties window, can monitor selection
// change events.
//
// IDesignerEventService is practicly replaced by the DesignSurfaceManager and also the
// meaning of Designer in IDesignerEventService is actually DesignerHost.
//
internal sealed class DesignerEventService : IDesignerEventService
{
public DesignerEventService ()
{
_designerList = new ArrayList ();
}
private ArrayList _designerList;
private IDesignerHost _activeDesigner;
public IDesignerHost ActiveDesigner {
get {
return _activeDesigner;
}
internal set {
IDesignerHost old = _activeDesigner;
_activeDesigner = value;
if (ActiveDesignerChanged != null)
ActiveDesignerChanged (this, new ActiveDesignerEventArgs (old, value));
}
}
public DesignerCollection Designers {
get { return new DesignerCollection (_designerList); }
}
public event ActiveDesignerEventHandler ActiveDesignerChanged;
public event DesignerEventHandler DesignerCreated;
public event DesignerEventHandler DesignerDisposed;
public event EventHandler SelectionChanged;
public void RaiseDesignerCreated (IDesignerHost host)
{
if (DesignerCreated != null)
DesignerCreated (this, new DesignerEventArgs (host));
}
public void RaiseDesignerDisposed (IDesignerHost host)
{
if (DesignerDisposed != null)
DesignerDisposed (this, new DesignerEventArgs (host));
}
public void RaiseSelectionChanged ()
{
if (SelectionChanged != null)
SelectionChanged (this, EventArgs.Empty);
}
}
}
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