[Magicajax-cvs] magicajax/Core/UI RenderedByScriptControl.cs,1.2,1.3

[Dion O. <dol...@us...>]

Update of /cvsroot/magicajax/magicajax/Core/UI
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv20348/magicajax/Core/UI

Modified Files:
	RenderedByScriptControl.cs 
Log Message:
Firefox keeps the form data of a page when doing a page reload or using 
the back/forward button.
However, the 'RenderedByScriptControls' will disappear after a reload. 
To redraw these controls on the page, we will force a callback from the client's
window.onload when the value of hidden field '__RBSCONTROLSEXIST' 
equals '1'. This hidden field is set to '1' whenever a callback is made.
On first page rendering, the value of this hidden field is '0'.
Internet Explorer always resets all form data on a page refresh (also the hidden 
field '__RBSCONTROLSEXIST'), so for IE no extra callback will be forced.

Index: RenderedByScriptControl.cs
===================================================================
RCS file: /cvsroot/magicajax/magicajax/Core/UI/RenderedByScriptControl.cs,v
retrieving revision 1.2
retrieving revision 1.3
diff -C2 -d -r1.2 -r1.3
*** RenderedByScriptControl.cs	14 Nov 2005 18:50:43 -0000	1.2
--- RenderedByScriptControl.cs	16 Nov 2005 22:54:31 -0000	1.3
***************
*** 173,189 ****
  		protected override void OnPreRender(EventArgs e)
  		{
! 			if ( ! IsChildOfRenderedByScriptControl(this) )
  			{
! 				// Firefox, when performing a refresh, loads the page but keeps any INPUT
! 				// field values. Thus, the html of a RenderedByScriptControl is restored
! 				// as if the page was loaded because of the browser's "Back Button".
! 				// To resolve this, the name of the storing fields is different for
! 				// each page request.
! 				string hiddenStore = this.ClientID + "$RBS_Store" + DateTime.Now.Ticks;
! 				Page.RegisterHiddenField(hiddenStore, null);
! 				Page.RegisterArrayDeclaration("RBS_Controls", String.Format("document.all[\"{0}$RBS_Holder\"]", this.ClientID));
! 				Page.RegisterArrayDeclaration("RBS_Controls_Store", String.Format("document.all[\"{0}\"]", hiddenStore));
  			}
- 
  			base.OnPreRender (e);
  		}
--- 173,204 ----
  		protected override void OnPreRender(EventArgs e)
  		{
! 			if (!IsChildOfRenderedByScriptControl(this))
  			{
! 				if (IsPageNoStoreMode)
! 				{
! 					// Firefox keeps the form data of a page when doing a page reload or using 
! 					// the back/forward button.
! 					// However, the 'RenderedByScriptControls' will disappear after a reload. 
! 					// To redraw these controls on the page, we will force a callback from the client's
! 					// window.onload when the value of hidden field '__RBSCONTROLSEXIST' 
! 					// equals '1'. This hidden field is set to '1' whenever a callback is made.
! 					// On first page rendering, the value of this hidden field is '0'.
! 					// Internet Explorer always resets all form data on a page refresh (also the hidden 
! 					// field '__RBSCONTROLSEXIST'), so for IE no extra callback will be forced.
! 					Page.RegisterHiddenField("__RBSCONTROLSEXIST", "0");
! 				}
! 				else
! 				{
! 					// Firefox, when performing a refresh, loads the page but keeps any INPUT
! 					// field values. Thus, the html of a RenderedByScriptControl is restored
! 					// as if the page was loaded because of the browser's "Back Button".
! 					// To resolve this, the name of the storing fields is different for
! 					// each page request.
! 					string hiddenStore = this.ClientID + "$RBS_Store" + DateTime.Now.Ticks;
! 					Page.RegisterHiddenField(hiddenStore, null);
! 					Page.RegisterArrayDeclaration("RBS_Controls", String.Format("document.all[\"{0}$RBS_Holder\"]", this.ClientID));
! 					Page.RegisterArrayDeclaration("RBS_Controls_Store", String.Format("document.all[\"{0}\"]", hiddenStore));
! 				}
  			}
  			base.OnPreRender (e);
  		}