MonoRail/Castle.MonoRail.Framework/HelperDictionary.cs

   1 // Copyright 2004-2008 Castle Project - http://www.castleproject.org/
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 namespace Castle.MonoRail.Framework
  16 {
  17         using System.Collections.Specialized;
  18
  19         /// <summary>
  20         /// Dictionary containing helpers.
  21         /// </summary>
  22         public class HelperDictionary : HybridDictionary
  23         {
  24                 /// <summary>
  25                 /// Instatiates a new HelperDictionary.
  26                 /// </summary>
  27                 public HelperDictionary() : base(true)
  28                 {
  29                 }
  30
  31                 /// <summary>
  32                 /// Adds the supplied helper using the standard key naming rules.
  33                 /// </summary>
  34                 /// <param name="helper">The helper to be added</param>
  35                 public void Add(object helper)
  36                 {
  37                         string helperName = helper.GetType().Name;
  38
  39                         if (!Contains(helperName))
  40                         {
  41                                 Add(helperName, helper);
  42                         }
  43
  44                         // Also makes the helper available with a less verbose name
  45                         // i.e. FormHelper and Form, AjaxHelper and Ajax
  46                         if (helperName.EndsWith("Helper"))
  47                         {
  48                                 string alias = helperName.Substring(0, helperName.Length - 6);
  49
  50                                 if (!Contains(alias))
  51                                 {
  52                                         Add(alias, helper);
  53                                 }
  54                         }
  55                 }
  56         }
  57 }