Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Web/UI/WebParts/WebPartDisplayMode.cs

@@ -0,0 +1,56 @@
+//------------------------------------------------------------------------------
+// <copyright file="WebPartDisplayMode.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Web.UI.WebControls.WebParts {
+
+    using System;
+
+    public abstract class WebPartDisplayMode {
+
+        private string _name;
+
+        protected WebPartDisplayMode(string name) {
+            if (String.IsNullOrEmpty(name)) {
+                throw new ArgumentNullException("name");
+            }
+            _name = name;
+        }
+
+        public virtual bool AllowPageDesign {
+            get {
+                return false;
+            }
+        }
+
+        public virtual bool AssociatedWithToolZone {
+            get {
+                return false;
+            }
+        }
+
+        public string Name {
+            get {
+                return _name;
+            }
+        }
+
+        public virtual bool RequiresPersonalization {
+            get {
+                return false;
+            }
+        }
+
+        public virtual bool ShowHiddenWebParts {
+            get {
+                return false;
+            }
+        }
+
+        public virtual bool IsEnabled(WebPartManager webPartManager) {
+            return (!RequiresPersonalization || webPartManager.Personalization.IsModifiable);
+        }
+    }
+}