Experiments/Attic/MVC/Castle.MVC/Views/WebUserControlView.cs

   1 #region Apache Notice
   2 /*****************************************************************************
   3  *
   4  * Castle.MVC
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *      http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  *
  18  ********************************************************************************/
  19 #endregion
  20
  21 #region Autors
  22
  23 /************************************************
  24 * Gilles Bayon
  25 *************************************************/
  26 #endregion
  27
  28 #region Using
  29
  30 using System;
  31 using System.Reflection;
  32 using System.Text;
  33 using System.Web.UI;
  34 using System.Web.UI.WebControls;
  35 using Castle.MVC.Configuration;
  36 using Castle.MVC.Controllers;
  37 using Castle.MVC.StatePersister;
  38 using Castle.MVC.States;
  39 using Castle.Windsor;
  40
  41 #endregion
  42
  43
  44 namespace Castle.MVC.Views
  45 {
  46         /// <summary>
  47         /// Represent a Web UserControl, give you access to the current state and page controller.
  48         /// </summary>
  49         public class WebUserControlView : UserControl
  50         {
  51
  52                 #region Fields
  53
  54                 private IState _state = null;
  55
  56                 #endregion
  57
  58                 #region Properties
  59
  60                 /// <summary>
  61                 /// Gets the user process state.
  62                 /// </summary>
  63                 public IState State
  64                 {
  65                         get { return _state; }
  66                 }
  67
  68
  69                 #endregion
  70
  71                 #region Constructor
  72
  73                 /// <summary>
  74                 /// Default cosntructor
  75                 /// </summary>
  76                 public WebUserControlView():base()
  77                 {
  78                         this.Init +=new EventHandler(WebUserControlView_Init);
  79                         this.Load +=new System.EventHandler(WebUserControlView_Load);
  80                 }
  81                 #endregion
  82
  83                 #region Methods
  84
  85                 private void WebUserControlView_Init(object sender, EventArgs e)
  86                 {
  87                         IWindsorContainer container = ContainerWebAccessorUtil.ObtainContainer();
  88
  89                         // Get the State
  90                         IStatePersister statePersister = (IStatePersister) container[typeof(IStatePersister)];
  91                         _state = statePersister.Load();
  92                         // Acquire current view
  93                         _state.CurrentView = ConfigUtil.Settings.GetView(this.Request.Path);
  94                         _state.Save();
  95
  96                         ControllerTree tree = (ControllerTree) container["mvc.controllerTree"];
  97                         PropertyControllerCollection propertiesController = tree.GetControllers( this.GetType().BaseType );
  98
  99                         if (propertiesController!=null)
 100                         {
 101                                 for(int i=0; i<propertiesController.Count; i++)
 102                                 {
 103                                         IController controller = container[propertiesController[i].ControllerType ] as IController;
 104                                         propertiesController[i].PropertyInfo.SetValue(this, controller, null);
 105                                 }
 106                         }
 107                 }
 108
 109                 private void WebUserControlView_Load(object sender, EventArgs e)
 110                 {
 111                         // Try to set the command name on the state object
 112                         Control control = null;
 113                         bool findControl = false;
 114                         foreach(string controllName in this.Request.Form)
 115                         {
 116                                 control = this.FindControl(controllName);
 117                                 if (control is IPostBackEventHandler)
 118                                 {
 119                                         findControl =true;
 120                                         break;
 121                                 }
 122                         }
 123                         // Another try
 124                         if (!findControl && this.Request.Form["__EVENTTARGET"]!=null)
 125                         {
 126                                 control = this.FindControl(this.Request.Form["__EVENTTARGET"].Replace(this.UniqueID+ ":", ""));
 127                         }
 128
 129                         // The Control.ViewState property is associated with each server control
 130                         // in your web form
 131                         // The commandName is in the control.ViewState["CommandName"]
 132                         // wich is protected :-(
 133                         if (control!=null)
 134                         {
 135                                 PropertyInfo propertyInfo = typeof(Control).GetProperty("ViewState",BindingFlags.Instance
 136                                         | BindingFlags.IgnoreReturn
 137                                         | BindingFlags.Public
 138                                         | BindingFlags.NonPublic);
 139                                 StateBag statebag = propertyInfo.GetValue(control,null) as StateBag;
 140
 141                                 _state.Command = statebag["CommandName"] as string;
 142                         }
 143                         _state.Save();
 144                 }
 145
 146                 /// <summary>
 147                 /// Set the focus on a control
 148                 /// </summary>
 149                 /// <param name="clientID">The client id of the control.</param>
 150                 public void SetFocus(string clientID )
 151                 {
 152                         StringBuilder stringBuilder = new StringBuilder();
 153
 154                         stringBuilder.Append("<script language='javascript'>");
 155                         stringBuilder.Append(" document.getElementById('" + clientID + "').focus()");
 156                         stringBuilder.Append("</script>");
 157                         this.Page.RegisterStartupScript("Onload", stringBuilder.ToString());
 158                 }
 159
 160                 /// <summary>
 161                 /// Set the focus on a control
 162                 /// </summary>
 163                 /// <param name="control">The control</param>
 164                 public void SetFocus(WebControl control )
 165                 {
 166                         StringBuilder stringBuilder = new StringBuilder();
 167
 168                         stringBuilder.Append("<script language='javascript'>");
 169                         stringBuilder.Append(" document.getElementById('" + control.ClientID + "').focus()");
 170                         stringBuilder.Append("</script>");
 171                         this.Page.RegisterStartupScript("Onload", stringBuilder.ToString());
 172                 }
 173
 174                 #endregion
 175
 176         }
 177 }