MonoRail/Castle.MonoRail.Framework/Internal/WizardUtils.cs

   1 // Copyright 2004-2007 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.Internal
  16 {
  17         using System;
  18         using System.Collections;
  19
  20         public abstract class WizardUtils
  21         {
  22                 public static String ConstructWizardNamespace(Controller controller)
  23                 {
  24                         if (controller is WizardStepPage)
  25                         {
  26                                 return ConstructWizardNamespace( (controller as WizardStepPage).WizardController );
  27                         }
  28
  29                         return String.Format("wizard.{0}", controller.Name);
  30                 }
  31
  32                 public static bool HasPreviousStep(Controller controller)
  33                 {
  34                         IRailsEngineContext context = controller.Context;
  35
  36                         String wizardName = WizardUtils.ConstructWizardNamespace(controller);
  37
  38                         int currentIndex = (int) context.Session[wizardName + "currentstepindex"];
  39
  40                         return currentIndex > 0;
  41                 }
  42
  43                 public static bool HasNextStep(Controller controller)
  44                 {
  45                         IRailsEngineContext context = controller.Context;
  46
  47                         String wizardName = WizardUtils.ConstructWizardNamespace(controller);
  48
  49                         IList stepList = (IList) context.Items["wizard.step.list"];
  50
  51                         int currentIndex = (int) context.Session[wizardName + "currentstepindex"];
  52
  53                         return (currentIndex + 1) < stepList.Count;
  54                 }
  55
  56                 public static String GetPreviousStepName(Controller controller)
  57                 {
  58                         IRailsEngineContext context = controller.Context;
  59
  60                         String wizardName = WizardUtils.ConstructWizardNamespace(controller);
  61
  62                         int curIndex = (int) context.Session[wizardName + "currentstepindex"];
  63
  64                         IList stepList = (IList) context.Items["wizard.step.list"];
  65
  66                         if ((curIndex - 1) >= 0)
  67                         {
  68                                 return (String) stepList[curIndex - 1];
  69                         }
  70
  71                         return null;
  72                 }
  73
  74                 public static String GetNextStepName(Controller controller)
  75                 {
  76                         IRailsEngineContext context = controller.Context;
  77
  78                         String wizardName = WizardUtils.ConstructWizardNamespace(controller);
  79
  80                         int curIndex = (int) context.Session[wizardName + "currentstepindex"];
  81
  82                         IList stepList = (IList) context.Items["wizard.step.list"];
  83
  84                         if ((curIndex + 1) < stepList.Count)
  85                         {
  86                                 return (String) stepList[curIndex + 1];
  87                         }
  88
  89                         return null;
  90                 }
  91
  92                 public static void RegisterCurrentStepInfo(Controller controller, String actionName)
  93                 {
  94                         IRailsEngineContext context = controller.Context;
  95
  96                         IList stepList = (IList) context.Items["wizard.step.list"];
  97
  98                         for(int i=0; i < stepList.Count; i++)
  99                         {
 100                                 String stepName = (String) stepList[i];
 101
 102                                 if (actionName == stepName)
 103                                 {
 104                                         RegisterCurrentStepInfo(controller, i, stepName);
 105
 106                                         break;
 107                                 }
 108                         }
 109                 }
 110
 111                 public static void RegisterCurrentStepInfo(Controller controller, int stepIndex, String stepName)
 112                 {
 113                         IRailsEngineContext context = controller.Context;
 114                         String wizardName = WizardUtils.ConstructWizardNamespace(controller);
 115
 116                         context.Session[wizardName + "currentstepindex"] = stepIndex;
 117                         context.Session[wizardName + "currentstep"] = stepName;
 118                 }
 119         }
 120 }