Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System/compmod/system/componentmodel/design/IDesignerEventService.cs

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+//------------------------------------------------------------------------------
+// <copyright file="IDesignerEventService.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+namespace System.ComponentModel.Design {
+    using System.Diagnostics;
+    using System;
+    using System.ComponentModel;
+    using Microsoft.Win32;
+
+    /// <devdoc>
+    ///    <para>Provides global
+    ///       event notifications and the ability to create designers.</para>
+    /// </devdoc>
+    public interface IDesignerEventService {
+
+        /// <devdoc>
+        ///    <para>
+        ///       Gets the currently active designer.
+        ///    </para>
+        /// </devdoc>
+        IDesignerHost ActiveDesigner { get; }
+
+        /// <devdoc>
+        ///    <para>
+        ///       Gets or
+        ///       sets a collection of running design documents in the development environment.
+        ///    </para>
+        /// </devdoc>
+        DesignerCollection Designers { get; }
+        
+        /// <devdoc>
+        ///    <para>
+        ///       Adds an event that will be raised when the currently active designer
+        ///       changes.
+        ///    </para>
+        /// </devdoc>
+        event ActiveDesignerEventHandler ActiveDesignerChanged;
+
+        /// <devdoc>
+        ///    <para>
+        ///       Adds an event that will be raised when a designer is created.
+        ///    </para>
+        /// </devdoc>
+        event DesignerEventHandler DesignerCreated;
+        
+        /// <devdoc>
+        ///    <para>
+        ///       Adds an event that will be raised when a designer is disposed.
+        ///    </para>
+        /// </devdoc>
+        event DesignerEventHandler DesignerDisposed;
+        
+        /// <devdoc>
+        ///    <para>
+        ///       Adds an event that will be raised when the global selection changes.
+        ///    </para>
+        /// </devdoc>
+        event EventHandler SelectionChanged;
+    }
+}
+