Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/UI/WebParts/WebPartVerbCollection.cs

@@ -0,0 +1,105 @@
+//------------------------------------------------------------------------------
+// <copyright file="WebPartVerbCollection.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Web.UI.WebControls.WebParts {
+
+    using System;
+    using System.Collections;
+    using System.Collections.Specialized;
+    using System.ComponentModel;
+    using System.Drawing.Design;
+
+    public sealed class WebPartVerbCollection : ReadOnlyCollectionBase {
+
+        private HybridDictionary _ids;
+
+        public static readonly WebPartVerbCollection Empty = new WebPartVerbCollection();
+
+        public WebPartVerbCollection() {
+            Initialize(null, null);
+        }
+
+        public WebPartVerbCollection(ICollection verbs) {
+            Initialize(null, verbs);
+        }
+
+        public WebPartVerbCollection(WebPartVerbCollection existingVerbs, ICollection verbs) {
+            Initialize(existingVerbs, verbs);
+        }
+
+        public WebPartVerb this[int index] {
+            get {
+                return (WebPartVerb) InnerList[index];
+            }
+        }
+
+        // Currently, the WebPartVerbCollection class allows verbs to be added with duplicate IDs.
+        // Ideally, we would not allow this.  However, since the WebPartChrome.GetWebParts() method
+        // returns both the Part and Zone verbs, there is the potential to have multiple verbs
+        // with the same ID.  So this property must be internal, since we are guaranteed to never
+        // call it on a collection with duplicate IDs.
+        internal WebPartVerb this[string id] {
+            get {
+                return (WebPartVerb)_ids[id];
+            }
+        }
+
+        // Do not throw for duplicate IDs, since we call this method to add items
+        // to the collection internally, and we need to allow duplicate IDs.
+        internal int Add(WebPartVerb value) {
+            return InnerList.Add(value);
+        }
+
+        public bool Contains(WebPartVerb value) {
+            return InnerList.Contains(value);
+        }
+
+        public void CopyTo(WebPartVerb[] array, int index) {
+            InnerList.CopyTo(array, index);
+        }
+
+        public int IndexOf(WebPartVerb value) {
+            return InnerList.IndexOf(value);
+        }
+
+        private void Initialize(WebPartVerbCollection existingVerbs, ICollection verbs) {
+            int count = ((existingVerbs != null) ? existingVerbs.Count : 0) + ((verbs != null) ? verbs.Count : 0);
+            _ids = new HybridDictionary(count, /* caseInsensitive */ true);
+
+            if (existingVerbs != null) {
+                foreach (WebPartVerb existingVerb in existingVerbs) {
+                    // Don't need to check arg, since we know it is valid since it came
+                    // from a CatalogPartCollection.
+                    if (_ids.Contains(existingVerb.ID)) {
+                        throw new ArgumentException(SR.GetString(SR.WebPart_Collection_DuplicateID, "WebPartVerb", existingVerb.ID), "existingVerbs");
+                    }
+                    _ids.Add(existingVerb.ID, existingVerb);
+
+                    InnerList.Add(existingVerb);
+                }
+            }
+
+            if (verbs != null) {
+                foreach (object obj in verbs) {
+                    if (obj == null) {
+                        throw new ArgumentException(SR.GetString(SR.Collection_CantAddNull), "verbs");
+                    }
+                    WebPartVerb webPartVerb = obj as WebPartVerb;
+                    if (webPartVerb == null) {
+                        throw new ArgumentException(SR.GetString(SR.Collection_InvalidType, "WebPartVerb"), "verbs");
+                    }
+
+                    if (_ids.Contains(webPartVerb.ID)) {
+                        throw new ArgumentException(SR.GetString(SR.WebPart_Collection_DuplicateID, "WebPartVerb", webPartVerb.ID), "verbs");
+                    }
+                    _ids.Add(webPartVerb.ID, webPartVerb);
+
+                    InnerList.Add(webPartVerb);
+                }
+            }
+        }
+    }
+}