Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web.Mobile/UI/MobileControls/Design/Util/DesignerUtility.cs

@@ -0,0 +1,150 @@
+//------------------------------------------------------------------------------
+// <copyright file="DesignerUtility.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+namespace System.Web.UI.Design.MobileControls.Util
+{
+    using System;
+    using System.Collections;
+    using System.Collections.Specialized;
+    using System.ComponentModel;
+    using System.ComponentModel.Design;
+    using System.Diagnostics;
+    using System.Reflection;
+    using System.Web.UI.MobileControls;
+    using System.Globalization;
+
+    [
+        System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand,
+        Flags=System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)
+    ]
+    [Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
+    internal class DesignerUtility
+    {
+        /* Removed for DCR 4240
+        internal static bool IsValidName(String name)
+        {
+            if (name == null || name.Length == 0)
+            {
+                return false;
+            }
+
+            for (int pos = 0; pos < name.Length; pos++)
+            {
+                Char ch = name[pos];
+                if (Char.IsWhiteSpace(ch) || ch.Equals('"') || ch.Equals('<') || 
+                    ch.Equals('>') || ch.Equals('\'') || ch.Equals('&'))
+                {
+                    return false;
+                }
+            }
+            return true;
+        }
+        */
+
+        internal static bool TopLevelControl(MobileControl control)
+        {
+            if (control is Form || control is StyleSheet)
+            {
+                return true;
+            }
+            return false;
+        }
+
+        internal static String ChoiceToUniqueIdentifier(DeviceSpecificChoice choice)
+        {
+            Debug.Assert(choice != null);
+            return  ChoiceToUniqueIdentifier(choice.Filter, choice.Argument);
+        }
+
+        internal static String ChoiceToUniqueIdentifier(String filter, String argument)
+        {
+            if (String.IsNullOrEmpty(filter))
+            {
+                filter = SR.GetString(SR.DeviceFilter_DefaultChoice);
+            }
+            if (argument == null)
+            {
+                argument = String.Empty;
+            }
+            return String.Format(CultureInfo.InvariantCulture, "{0} (\"{1}\")", filter, argument);
+        }
+        
+        // NOTE: Throws CheckoutException.Canceled if user cancels checkout.
+        internal static void EnsureFileCheckedOut(ISite site, String fileName)
+        {
+            Type serviceType = Type.GetType("Microsoft.VisualStudio.Shell.VsCheckoutService, " + AssemblyRef.MicrosoftVisualStudio);
+
+            // Do nothing if service cannot be found.
+            if (serviceType == null) {
+//                Debug.Fail("type Microsoft.VisualStudio.Shell.VsCheckoutService cannot be found in DesignerUtility.EnsureFileCheckedOut.");
+                return;
+            }
+
+            Object serviceInstance = System.Activator.CreateInstance(
+                serviceType, new Object[] { site });
+
+            try
+            {
+                Object[] args = new Object[] { fileName };
+                bool fileNeedsCheckout = (bool) serviceType.InvokeMember(
+                    "DoesFileNeedCheckout",
+                    BindingFlags.Default | BindingFlags.InvokeMethod,
+                    null,
+                    serviceInstance,
+                    args, CultureInfo.InvariantCulture
+                );
+                if(fileNeedsCheckout)
+                {
+                    serviceType.InvokeMember(
+                        "CheckoutFile",
+                        BindingFlags.Default | BindingFlags.InvokeMethod,
+                        null,
+                        serviceInstance,
+                        args, CultureInfo.InvariantCulture
+                    );                
+                }
+            }
+            finally
+            {
+                serviceType.InvokeMember(
+                    "Dispose",
+                    BindingFlags.Default | BindingFlags.InvokeMethod,
+                    null,
+                    serviceInstance,
+                    new Object[] {}, CultureInfo.InvariantCulture
+                );                
+                serviceInstance = null;
+            }
+        }
+
+        // Ideally we would refactor the rest of the common code in the ADF/PO/DFE
+        // dialogs into a separate manager object.
+        internal static StringCollection GetDuplicateChoiceTreeNodes(ICollection treeNodes)
+        {
+            HybridDictionary visitedChoices = new HybridDictionary();
+            StringCollection duplicateChoices = new StringCollection();
+            
+            foreach(ChoiceTreeNode node in treeNodes)
+            {
+                String key = ChoiceToUniqueIdentifier(node.Name, node.Argument);
+                if(visitedChoices[key] == null)
+                {
+                    visitedChoices[key] = 1;
+                }
+                else
+                {
+                    if((int)visitedChoices[key] == 1)
+                    {
+                        duplicateChoices.Add(key);
+
+                    }
+                    visitedChoices[key] = ((int)visitedChoices[key]) + 1;
+                }
+            }
+            return duplicateChoices;
+        }        
+    }
+}