using Microsoft.SharePoint.Utilities;
using Microsoft.SharePoint.WebControls;
using SPSolutions.Web;
using System;
using System.Globalization;
using System.Reflection;
using System.Web;
namespace SPSolutions.SharePoint.WebControls
{
	public abstract class ContextSelectorEntityEditorAdapter<T> : ContextSelector<T>
	{
		public abstract Type PickerDialogType
		{
			get;
		}
		public bool UseCookieInitialization
		{
			get
			{
				return this.ViewState["Microsoft.SharePoint.SPAlertTemplate"] == null || (bool)this.ViewState["Microsoft.SharePoint.SPAlertTemplate"];
			}
			set
			{
				this.ViewState["Microsoft.SharePoint.SPAlertTemplate"] = value;
			}
		}
		internal static string CookieCurrentId
		{
			get
			{
				PropertyInfo property = typeof(ContextSelector<T>).GetProperty("CookieCurrentId", BindingFlags.Static | BindingFlags.NonPublic);
				return (string)property.GetValue(null, null);
			}
			set
			{
				PropertyInfo property = typeof(ContextSelector<T>).GetProperty("CookieCurrentId", BindingFlags.Static | BindingFlags.NonPublic);
				property.SetValue(null, value, null);
			}
		}
		protected override string NavigateUrl
		{
			get
			{
                return string.Format("/_layouts/15/picker.aspx?PickerDialogType={0}", HttpUtility.UrlEncode(this.PickerDialogType.AssemblyQualifiedName));
			}
		}
		protected override void OnInit(EventArgs e)
		{
			base.OnInit(e);
		}
		protected override void OnPreRender(EventArgs e)
		{
			base.OnPreRender(e);
			if (base.AllowChange)
			{
				string text = "SelectContext_" + this.ID;
				string text2 = "CallbackWrapper_" + this.ID;
				string text3;
				if (base.CurrentItem == null)
				{
					text3 = this.NavigateUrl;
				}
				else
				{
					text3 = HttpUtil.AppendUrlQueryString(this.NavigateUrl, string.Format("{0}={1}", this.Key, base.CurrentId));
				}
				string script = string.Concat(new string[]
				{
					"<script language='javascript'>\r\n                        function ",
					text,
					"(returnValue)\r\n                        {\r\n                            if (typeof(returnValue)!= 'undefined' && returnValue != '",
					SPHttpUtility.EcmaScriptStringLiteralEncode(base.CurrentId),
					"' ) \r\n                            {\r\n                                STSNavigate(StURLSetVar2(window.location.href, '",
					SPHttpUtility.EcmaScriptStringLiteralEncode(this.Key),
					"' , returnValue));\r\n                            }\r\n                        }\r\n                        </script>"
				});
				this.Page.ClientScript.RegisterClientScriptBlock(typeof(ContextSelectorEntityEditorAdapter<T>), text, script);
				string script2 = string.Concat(new string[]
				{
					"<script language='javascript'>\r\nfunction ",
					text2,
					"(xml)\r\n{\r\nvar xmlDoc;\r\nif(xml==null)\r\nreturn;\r\nif(document.implementation && document.implementation.createDocument)\r\n{\r\nxmlDoc=(new DOMParser()).parseFromString(xml, \"text/xml\");\r\n}\r\nelse\r\n{\r\nxmlDoc=new ActiveXObject(\"Microsoft.XMLDOM\");\r\nxmlDoc.async=false;\r\nxmlDoc.loadXML(xml);\r\n}\r\nvar entities=xmlDoc.documentElement;\r\nif(entities.childNodes.length == 0)\r\nreturn;\r\nvar entity = entities.childNodes[0];\r\n",
					text,
					"(entity.getAttribute(\"Key\"));\r\n}\r\n</script>"
				});
				this.Page.ClientScript.RegisterClientScriptBlock(typeof(ContextSelectorEntityEditorAdapter<T>), text2, script2);
				string text4 = string.Format(CultureInfo.InvariantCulture, "commonShowModalDialog('{0}','resizable: yes; status: no; scroll: no; help: no; center: yes; dialogWidth : {1}pt; dialogHeight : {2}pt;',{3});", new object[]
				{
					SPHttpUtility.EcmaScriptStringLiteralEncode(text3),
					base.DialogWidth,
					base.DialogHeight,
					SPHttpUtility.EcmaScriptStringLiteralEncode(text2)
				});
				this.ChangeItem.ClientOnClickScript = (SPHttpUtility.NoEncode(text4));
				PickerDialog.RegisterPickerReturnValueHiddenFields(this.Page);
			}
		}
		protected override void OnLoad(EventArgs e)
		{
			if (!this.Page.IsPostBack)
			{
				if (base.CurrentItem != null)
				{
					T currentItem = base.CurrentItem;
					if (!currentItem.Equals(default(T)))
					{
						return;
					}
				}
				string idFromQueryString = this.IdFromQueryString;
				if (idFromQueryString == null)
				{
					if (string.IsNullOrEmpty(base.ClearSelectionText))
					{
						if (this.UseCookieInitialization)
						{
							base.CurrentId = (ContextSelectorEntityEditorAdapter<T>.CookieCurrentId);
							return;
						}
						if (base.CurrentItem != null)
						{
							T currentItem2 = base.CurrentItem;
							if (!currentItem2.Equals(default(T)))
							{
								return;
							}
						}
						base.CurrentId = (this.DefaultSelectionId());
						return;
					}
				}
				else
				{
					base.CurrentId = (idFromQueryString);
				}
			}
		}
	}
}