/// <summary> Constructor for a new instance of the Public_Folder_HtmlSubwriter class </summary>
 /// <param name="Results_Statistics"> Information about the entire set of results for a browse of a user's bookshelf folder</param>
 /// <param name="Paged_Results"> Single page of results for a browse of a user's bookshelf folder, within the entire set </param>
 /// <param name="Code_Manager"> List of valid collection codes, including mapping from the Sobek collections to Greenstone collections</param>
 /// <param name="Translator"> Language support object which handles simple translational duties </param>
 /// <param name="All_Items_Lookup"> Lookup object used to pull basic information about any item loaded into this library </param>
 /// <param name="Current_User"> Currently logged on user </param>
 /// <param name="Public_Folder"> Object contains the information about the public folder to display </param>
 public Public_Folder_HtmlSubwriter(Search_Results_Statistics Results_Statistics,
     List<iSearch_Title_Result> Paged_Results,
     Aggregation_Code_Manager Code_Manager, Language_Support_Info Translator,
     Item_Lookup_Object All_Items_Lookup, 
     User_Object Current_User, Public_User_Folder Public_Folder )
 {
     publicFolder = Public_Folder;
     currentUser = Current_User;
     pagedResults = Paged_Results;
     resultsStatistics = Results_Statistics;
     translations = Translator;
     codeManager = Code_Manager;
     allItemsTable = All_Items_Lookup;
 }
        /// <summary> Stores a public folder object into the cache or caching server </summary>
        /// <param name="StoreObject"> Object to store (which contains the primary key) </param>
        /// <param name="Tracer"> Trace object keeps a list of each method executed and important milestones in rendering</param>
        public static void Store_Public_Folder_Info( Public_User_Folder StoreObject, Custom_Tracer Tracer )
        {
            // If the cache is disabled, just return before even tracing
            if (Disabled)
                return;

            string key = "FOLDER_INFO_" + StoreObject.UserFolderID;

            if (Tracer != null)
            {
                Tracer.Add_Trace("Cached_Data_Manager.Store_Public_Folder_Info", "Adding object '" + key + "' to the cache with expiration of 2 minutes");
            }

            if ( HttpContext.Current.Cache[key] == null)
            {
                HttpContext.Current.Cache.Insert(key, StoreObject, null, Cache.NoAbsoluteExpiration, TimeSpan.FromMinutes(2));
            }
        }
        /// <summary> Constructor for a new instance of the Text_MainWriter class </summary>
        /// <param name="Current_Mode"> Mode / navigation information for the current request</param>
        /// <param name="Hierarchy_Object"> Current item aggregation object to display </param>
        /// <param name="Results_Statistics"> Information about the entire set of results for a search or browse </param>
        /// <param name="Paged_Results"> Single page of results for a search or browse, within the entire set </param>
        /// <param name="Browse_Object"> Object contains all the basic information about any browse or info display </param>
        /// <param name="Current_Item"> Current item to display </param>
        /// <param name="Current_Page"> Current page within the item</param>
        /// <param name="HTML_Skin"> HTML Web skin which controls the overall appearance of this digital library </param>
        /// <param name="Current_User"> Currently logged on user </param>
        /// <param name="Translator"> Language support object which handles simple translational duties </param>
        /// <param name="Code_Manager"> List of valid collection codes, including mapping from the Sobek collections to Greenstone collections</param>
        /// <param name="Item_List"> Lookup object used to pull basic information about any item loaded into this library </param>
        /// <param name="Stats_Date_Range"> Object contains the start and end dates for the statistical data in the database </param>
        /// <param name="Search_History"> List of recent searches performed against this digital library </param>
        /// <param name="Icon_Dictionary"> Dictionary of information about every wordmark/icon in this digital library, used to build the wordmarks subpage </param>
        /// <param name="Thematic_Headings"> Headings under which all the highlighted collections on the main home page are organized </param>
        /// <param name="Public_Folder"> Object contains the information about the public folder to display </param>
        /// <param name="Aggregation_Aliases"> List of all existing aliases for existing aggregations </param>
        /// <param name="Web_Skin_Collection"> Collection of all the web skins </param>
        /// <param name="Checked_Items"> List of all items which are currently checked out for single fair use and the IP address currently viewing the item</param>
        /// <param name="IP_Restrictions"> Any possible restriction on item access by IP ranges </param>
        /// <param name="URL_Portals"> List of all web portals into this system </param>
        /// <param name="Site_Map"> Optional site map object used to render a navigational tree-view on left side of static web content pages </param>
        /// <param name="Items_In_Title"> List of items within the current title ( used for the Item Group display )</param>
        /// <param name="Static_Web_Content"> HTML content-based browse, info, or imple CMS-style web content objects.  These are objects which are read from a static HTML file and much of the head information must be maintained </param>
        /// <param name="Tracer"> Trace object keeps a list of each method executed and important milestones in rendering </param>
        public Html_MainWriter(SobekCM_Navigation_Object Current_Mode,
            Item_Aggregation Hierarchy_Object,
            Search_Results_Statistics Results_Statistics,
            List<iSearch_Title_Result> Paged_Results,
            Item_Aggregation_Child_Page Browse_Object,
            SobekCM_Item Current_Item,
            Page_TreeNode Current_Page,
            SobekCM_Skin_Object HTML_Skin,
            User_Object Current_User,
            Language_Support_Info Translator,
            Aggregation_Code_Manager Code_Manager,
            Item_Lookup_Object Item_List,
            Statistics_Dates Stats_Date_Range,
            Recent_Searches Search_History,
            Dictionary<string, Wordmark_Icon> Icon_Dictionary,
            List<Thematic_Heading> Thematic_Headings,
            Public_User_Folder Public_Folder,
            Dictionary<string, string> Aggregation_Aliases,
            SobekCM_Skin_Collection Web_Skin_Collection,
            Checked_Out_Items_List Checked_Items,
            IP_Restriction_Ranges IP_Restrictions,
            Portal_List URL_Portals,
            SobekCM_SiteMap Site_Map,
            SobekCM_Items_In_Title Items_In_Title,
            HTML_Based_Content Static_Web_Content,
            Custom_Tracer Tracer )
            : base(Current_Mode, Hierarchy_Object, Results_Statistics, Paged_Results, Browse_Object,  Current_Item, Current_Page, Static_Web_Content)
        {
            // Save parameters
            htmlSkin = HTML_Skin;
            translator = Translator;
            codeManager = Code_Manager;
            itemList = Item_List;
            statsDateRange = Stats_Date_Range;
            searchHistory = Search_History;
            currentUser = Current_User;
            iconList = Icon_Dictionary;
            thematicHeadings = Thematic_Headings;
            publicFolder = Public_Folder;
            aggregationAliases = Aggregation_Aliases;
            webSkins = Web_Skin_Collection;
            checkedItems = Checked_Items;
            ipRestrictionInfo = IP_Restrictions;
            urlPortals = URL_Portals;
            siteMap = Site_Map;
            itemsInTitle = Items_In_Title;

            // Set some defaults

            // Handle basic events which may be fired by the internal header
            if (HttpContext.Current.Request.Form["internal_header_action"] != null)
            {
                // Pull the action value
                string internalHeaderAction = HttpContext.Current.Request.Form["internal_header_action"].Trim();

                // Was this to hide or show the header?
                if ((internalHeaderAction == "hide") || (internalHeaderAction == "show"))
                {
                    // Pull the current visibility from the session
                    bool shown = !((HttpContext.Current.Session["internal_header"] != null) && (HttpContext.Current.Session["internal_header"].ToString() == "hidden"));
                    if ((internalHeaderAction == "hide") && (shown))
                    {
                        HttpContext.Current.Session["internal_header"] = "hidden";
                        currentMode.Redirect();
                        return;
                    }
                    if ((internalHeaderAction == "show") && (!shown))
                    {
                        HttpContext.Current.Session["internal_header"] = "shown";
                        currentMode.Redirect();
                        return;
                    }
                }
            }

            try
            {

                // Create the html sub writer now
                switch (Current_Mode.Mode)
                {
                    case Display_Mode_Enum.Internal:
                        subwriter = new Internal_HtmlSubwriter(iconList, currentUser, codeManager);
                        break;

                    case Display_Mode_Enum.Statistics:
                        subwriter = new Statistics_HtmlSubwriter(searchHistory, codeManager, statsDateRange);
                        break;

                    case Display_Mode_Enum.Preferences:
                        subwriter = new Preferences_HtmlSubwriter(currentMode);
                        break;

                    case Display_Mode_Enum.Error:
                        subwriter = new Error_HtmlSubwriter(false);
                        // Send the email now
                        if (currentMode.Caught_Exception != null)
                        {
                            if (currentMode.Error_Message.Length == 0)
                                currentMode.Error_Message = "Unknown exception caught";
                            Email_Information(currentMode.Error_Message, currentMode.Caught_Exception, Tracer, false);
                        }
                        break;

                    case Display_Mode_Enum.Legacy_URL:
                        subwriter = new LegacyUrl_HtmlSubwriter();
                        break;

                    case Display_Mode_Enum.Item_Print:
                        subwriter = new Print_Item_HtmlSubwriter(currentItem, codeManager, translator, currentMode);
                        break;

                    case Display_Mode_Enum.Contact:

                        StringBuilder builder = new StringBuilder();
                        builder.Append("\n\nSUBMISSION INFORMATION\n");
                        builder.Append("\tDate:\t\t\t\t" + DateTime.Now.ToString() + "\n");
                        string lastMode = String.Empty;
                        try
                        {
                            if (HttpContext.Current.Session["Last_Mode"] != null)
                                lastMode = HttpContext.Current.Session["Last_Mode"].ToString();
                            builder.Append("\tIP Address:\t\t\t" + HttpContext.Current.Request.UserHostAddress + "\n");
                            builder.Append("\tHost Name:\t\t\t" + HttpContext.Current.Request.UserHostName + "\n");
                            builder.Append("\tBrowser:\t\t\t" + HttpContext.Current.Request.Browser.Browser + "\n");
                            builder.Append("\tBrowser Platform:\t\t" + HttpContext.Current.Request.Browser.Platform + "\n");
                            builder.Append("\tBrowser Version:\t\t" + HttpContext.Current.Request.Browser.Version + "\n");
                            builder.Append("\tBrowser Language:\t\t");
                            bool first = true;
                            string[] languages = HttpContext.Current.Request.UserLanguages;
                            if (languages != null)
                                foreach (string thisLanguage in languages)
                                {
                                    if (first)
                                    {
                                        builder.Append(thisLanguage);
                                        first = false;
                                    }
                                    else
                                    {
                                        builder.Append(", " + thisLanguage);
                                    }
                                }

                            builder.Append("\n\nHISTORY\n");
                            if (HttpContext.Current.Session["LastSearch"] != null)
                                builder.Append("\tLast Search:\t\t" + HttpContext.Current.Session["LastSearch"] + "\n");
                            if (HttpContext.Current.Session["LastResults"] != null)
                                builder.Append("\tLast Results:\t\t" + HttpContext.Current.Session["LastResults"] + "\n");
                            if (HttpContext.Current.Session["Last_Mode"] != null)
                                builder.Append("\tLast Mode:\t\t\t" + HttpContext.Current.Session["Last_Mode"] + "\n");
                            builder.Append("\tURL:\t\t\t\t" + HttpContext.Current.Items["Original_URL"]);
                        }
                        catch
                        {

                        }
                        subwriter = new Contact_HtmlSubwriter(lastMode, builder.ToString(), currentMode, hierarchyObject);
                        break;

                    case Display_Mode_Enum.Contact_Sent:
                        subwriter = new Contact_HtmlSubwriter(String.Empty, String.Empty, currentMode, hierarchyObject);
                        break;

                    case Display_Mode_Enum.Simple_HTML_CMS:
                        subwriter = new Web_Content_HtmlSubwriter(hierarchyObject, currentMode, htmlSkin, htmlBasedContent, siteMap);
                        break;

                    case Display_Mode_Enum.My_Sobek:
                        subwriter = new MySobek_HtmlSubwriter(results_statistics, paged_results, codeManager, itemList, hierarchyObject, htmlSkin, translator, currentMode, currentItem, currentUser, iconList, statsDateRange, webSkins, Tracer);
                        break;

                    case Display_Mode_Enum.Administrative:
                        subwriter = new Admin_HtmlSubwriter(codeManager, itemList, hierarchyObject, htmlSkin, translator, currentMode, aggregationAliases, webSkins, currentUser, ipRestrictionInfo, iconList, urlPortals, thematicHeadings, Tracer);
                        break;

                    case Display_Mode_Enum.Results:
                        subwriter = new Search_Results_HtmlSubwriter(results_statistics, paged_results, codeManager, translator, itemList, currentUser);
                        break;

                    case Display_Mode_Enum.Public_Folder:
                        subwriter = new Public_Folder_HtmlSubwriter(results_statistics, paged_results, codeManager, translator, itemList, currentUser, publicFolder);
                        break;

                    case Display_Mode_Enum.Search:
                    case Display_Mode_Enum.Aggregation:
                        subwriter = new Aggregation_HtmlSubwriter(hierarchyObject, currentMode, htmlSkin, translator, thisBrowseObject, results_statistics, paged_results, codeManager, itemList, thematicHeadings, currentUser, htmlBasedContent, Tracer);
                        break;

                    case Display_Mode_Enum.Item_Display:
                        if ((!currentMode.Invalid_Item) && (currentItem != null))
                        {
                            bool show_toc = false;
                            if (HttpContext.Current.Session["Show TOC"] != null)
                            {
                                Boolean.TryParse(HttpContext.Current.Session["Show TOC"].ToString(), out show_toc);
                            }

                            // Check that this item is not checked out by another user
                            bool itemCheckedOutByOtherUser = false;
                            if (currentItem.Behaviors.CheckOut_Required)
                            {
                                if (!checkedItems.Check_Out(currentItem.Web.ItemID, HttpContext.Current.Request.UserHostAddress))
                                {
                                    itemCheckedOutByOtherUser = true;
                                }
                            }

                            // Check to see if this is IP restricted
                            string restriction_message = String.Empty;
                            if (currentItem.Behaviors.IP_Restriction_Membership > 0)
                            {
                                if (HttpContext.Current != null)
                                {
                                    int user_mask = (int)HttpContext.Current.Session["IP_Range_Membership"];
                                    int comparison = currentItem.Behaviors.IP_Restriction_Membership & user_mask;
                                    if (comparison == 0)
                                    {
                                        int restriction = currentItem.Behaviors.IP_Restriction_Membership;
                                        int restriction_counter = 0;
                                        while (restriction % 2 != 1)
                                        {
                                            restriction = restriction >> 1;
                                            restriction_counter++;
                                        }
                                        restriction_message = ipRestrictionInfo[restriction_counter].Item_Restricted_Statement;
                                    }
                                }
                            }

                            // Create the item viewer writer
                            subwriter = new Item_HtmlSubwriter(currentItem, currentPage, currentUser, codeManager, translator, show_toc, (SobekCM_Library_Settings.JP2ServerUrl.Length > 0), currentMode, hierarchyObject, restriction_message, itemsInTitle, Tracer);
                            ((Item_HtmlSubwriter)subwriter).Item_Checked_Out_By_Other_User = itemCheckedOutByOtherUser;
                        }
                        else
                        {
                            // Create the invalid item html subwrite and write the HTML
                            subwriter = new Error_HtmlSubwriter(true);
                        }
                        break;

                }
            }
            catch (Exception ee)
            {
                // Send to the dashboard
                if ((HttpContext.Current.Request.UserHostAddress == "127.0.0.1") || (HttpContext.Current.Request.UserHostAddress == HttpContext.Current.Request.ServerVariables["LOCAL_ADDR"]) || (HttpContext.Current.Request.Url.ToString().IndexOf("localhost") >= 0))
                {
                    Tracer.Add_Trace("Html_MainWriter.Constructor", "Exception caught!", Custom_Trace_Type_Enum.Error);
                    Tracer.Add_Trace("Html_MainWriter.Constructor", ee.Message, Custom_Trace_Type_Enum.Error);
                    Tracer.Add_Trace("Html_MainWriter.Constructor", ee.StackTrace, Custom_Trace_Type_Enum.Error);

                    // Wrap this into the SobekCM Exception
                    SobekCM_Traced_Exception newException = new SobekCM_Traced_Exception("Exception caught while building the mode-specific HTML Subwriter", ee, Tracer);

                    // Save this to the session state, and then forward to the dashboard
                    HttpContext.Current.Session["Last_Exception"] = newException;
                    HttpContext.Current.Response.Redirect("dashboard.aspx", false);
                    Current_Mode.Request_Completed = true;

                    return;
                }
                else
                {
                    subwriter = new Error_HtmlSubwriter(false);
                }
            }

            if (subwriter != null)
            {
                subwriter.Mode = currentMode;
                subwriter.Skin = htmlSkin;
                subwriter.Current_Aggregation = hierarchyObject;
            }
        }
        /// <summary> Retrieve the public user folder information and browse by user folder id </summary>
        /// <param name="UserFolderID"> Primary key for the public user folder to retrieve </param>
        /// <param name="ResultsPage">Which page of results to return ( one-based, so the first page is page number of one ) </param>
        /// <param name="Tracer"> Trace object keeps a list of each method executed and important milestones in rendering </param>
        /// <param name="Folder_Info"> [OUT] Information about this public user folder including name and owner</param>
        /// <param name="Complete_Result_Set_Info"> [OUT] Information about the entire set of results </param>
        /// <param name="Paged_Results"> [OUT] List of search results for the requested page of results </param>
        /// <returns> TRUE if successful, otherwise FALSE </returns>
        /// <remarks> This attempts to pull the objects from the cache.  If unsuccessful, it builds the objects from the
        /// database and hands off to the <see cref="Cached_Data_Manager" /> to store in the cache </remarks>
        public bool Get_Public_User_Folder(int UserFolderID, int ResultsPage, Custom_Tracer Tracer, out Public_User_Folder Folder_Info, out Search_Results_Statistics Complete_Result_Set_Info, out List<iSearch_Title_Result> Paged_Results)
        {
            if (Tracer != null)
            {
                Tracer.Add_Trace("SobekCM_Assistant.Get_Public_User_Folder", String.Empty);
            }

            // Set output initially to null
            Paged_Results = null;
            Complete_Result_Set_Info = null;

            // Try to get this from the cache first, otherwise get from database and store in cache
            Folder_Info = Cached_Data_Manager.Retrieve_Public_Folder_Info(UserFolderID, Tracer);
            if (Folder_Info == null)
            {
                Folder_Info = SobekCM_Database.Get_Public_User_Folder(UserFolderID, Tracer);
                if ((Folder_Info != null) && (Folder_Info.isPublic))
                {
                    Cached_Data_Manager.Store_Public_Folder_Info(Folder_Info, Tracer);
                }
            }

            // If this folder is invalid or private, return false
            if ((Folder_Info == null) || (!Folder_Info.isPublic))
            {
                return false;
            }

            // Look to see if the browse statistics are available on any cache for this browse
            bool need_browse_statistics = true;
            Complete_Result_Set_Info = Cached_Data_Manager.Retrieve_Public_Folder_Statistics(UserFolderID, Tracer);
            if (Complete_Result_Set_Info != null)
                need_browse_statistics = false;

            // Look to see if the paged results are available on any cache..
            bool need_paged_results = true;
            Paged_Results = Cached_Data_Manager.Retrieve_Public_Folder_Browse(UserFolderID, ResultsPage, Tracer);
            if (Paged_Results != null)
                need_paged_results = false;

            // Was a copy found in the cache?
            if ((!need_browse_statistics) && (!need_paged_results))
            {
                if (Tracer != null)
                {
                    Tracer.Add_Trace("SobekCM_Assistant.Get_User_Folder", "Browse statistics and paged results retrieved from cache");
                }
            }
            else
            {
                if (Tracer != null)
                {
                    Tracer.Add_Trace("SobekCM_Assistant.Get_User_Folder", "Building results information");
                }

                Single_Paged_Results_Args returnArgs = SobekCM_Database.Get_Public_Folder_Browse(UserFolderID, 20, ResultsPage, false, new List<short>(), need_browse_statistics, Tracer);
                if (need_browse_statistics)
                {
                    Complete_Result_Set_Info = returnArgs.Statistics;
                }
                Paged_Results = returnArgs.Paged_Results;

                // Save the overall result set statistics to the cache if something was pulled
                if ((need_browse_statistics) && (Complete_Result_Set_Info != null))
                {
                    Cached_Data_Manager.Store_Public_Folder_Statistics(UserFolderID, Complete_Result_Set_Info, Tracer);
                }

                // Save the overall result set statistics to the cache if something was pulled
                if ((need_paged_results) && (Paged_Results != null))
                {
                    Cached_Data_Manager.Store_Public_Folder_Browse(UserFolderID, ResultsPage, Paged_Results, Tracer);
                }
            }

            return true;
        }
        /// <summary> Gets the information about a folder which should be public </summary>
        /// <param name="UserFolderID"> ID for the user folder to retrieve </param>
        /// <param name="Tracer"> Trace object keeps a list of each method executed and important milestones in rendering</param>
        /// <returns> Built public user folder regardless if it is public or not.  A non-public folder will only be populated with FALSE for the isPublic field. </returns>
        /// <remarks> This calls the 'mySobek_Get_Folder_Information' stored procedure</remarks> 
        public static Public_User_Folder Get_Public_User_Folder(int UserFolderID, Custom_Tracer Tracer)
        {
            if (Tracer != null)
            {
                Tracer.Add_Trace("SobekCM_Database.Get_Public_User_Folder", String.Empty);
            }

            try
            {
                // Execute this non-query stored procedure
                SqlParameter[] paramList = new SqlParameter[1];
                paramList[0] = new SqlParameter("@folderid", UserFolderID);

                DataSet resultSet = SqlHelper.ExecuteDataset(connectionString, CommandType.StoredProcedure, "mySobek_Get_Folder_Information", paramList);

                // Build the returnvalue
                if ((resultSet == null) || (resultSet.Tables.Count == 0) || (resultSet.Tables[0].Rows.Count == 0))
                    return new Public_User_Folder(false);

                // Check that it is really public
                bool isPublic = Convert.ToBoolean(resultSet.Tables[0].Rows[0]["isPublic"]);
                if ( !isPublic )
                    return new Public_User_Folder(false);

                // Pull out the row and all the values
                DataRow thisRow = resultSet.Tables[0].Rows[0];
                string folderName = thisRow["FolderName"].ToString();
                string folderDescription = thisRow["FolderDescription"].ToString();
                int userID = Convert.ToInt32(thisRow["UserID"]);
                string firstName = thisRow["FirstName"].ToString();
                string lastName = thisRow["LastName"].ToString();
                string nickname = thisRow["NickName"].ToString();
                string email = thisRow["EmailAddress"].ToString();

                // Return the folder object
                Public_User_Folder returnValue = new Public_User_Folder(UserFolderID, folderName, folderDescription, userID, firstName, lastName, nickname, email, true);
                return returnValue;
            }
            catch (Exception ee)
            {
                lastException = ee;
                if (Tracer != null)
                {
                    Tracer.Add_Trace("SobekCM_Database.Get_Public_User_Folder", "Exception caught during database work", Custom_Trace_Type_Enum.Error);
                    Tracer.Add_Trace("SobekCM_Database.Get_Public_User_Folder", ee.Message, Custom_Trace_Type_Enum.Error);
                    Tracer.Add_Trace("SobekCM_Database.Get_Public_User_Folder", ee.StackTrace, Custom_Trace_Type_Enum.Error);
                }
                return null;
            }
        }
        /// <summary> Constructor for a new instance of the Text_MainWriter class </summary>
        /// <param name="Current_Mode"> Mode / navigation information for the current request</param>
        /// <param name="Hierarchy_Object"> Current item aggregation object to display </param>
        /// <param name="Results_Statistics"> Information about the entire set of results for a search or browse </param>
        /// <param name="Paged_Results"> Single page of results for a search or browse, within the entire set </param>
        /// <param name="Browse_Object"> Object contains all the basic information about any browse or info display </param>
        /// <param name="Current_Item"> Current item to display </param>
        /// <param name="Current_Page"> Current page within the item</param>
        /// <param name="HTML_Skin"> HTML Web skin which controls the overall appearance of this digital library </param>
        /// <param name="Current_User"> Currently logged on user </param>
        /// <param name="Translator"> Language support object which handles simple translational duties </param>
        /// <param name="Code_Manager"> List of valid collection codes, including mapping from the Sobek collections to Greenstone collections</param>
        /// <param name="Item_List"> Lookup object used to pull basic information about any item loaded into this library </param>
        /// <param name="Stats_Date_Range"> Object contains the start and end dates for the statistical data in the database </param>
        /// <param name="Search_History"> List of recent searches performed against this digital library </param>
        /// <param name="Icon_Dictionary"> Dictionary of information about every wordmark/icon in this digital library, used to build the wordmarks subpage </param>
        /// <param name="Thematic_Headings"> Headings under which all the highlighted collections on the main home page are organized </param>
        /// <param name="Public_Folder"> Object contains the information about the public folder to display </param>
        /// <param name="Aggregation_Aliases"> List of all existing aliases for existing aggregations </param>
        /// <param name="Web_Skin_Collection"> Collection of all the web skins </param>
        /// <param name="Checked_Items"> List of all items which are currently checked out for single fair use and the IP address currently viewing the item</param>
        /// <param name="IP_Restrictions"> Any possible restriction on item access by IP ranges </param>
        /// <param name="URL_Portals"> List of all web portals into this system </param>
        /// <param name="Site_Map"> Optional site map object used to render a navigational tree-view on left side of static web content pages </param>
        /// <param name="Items_In_Title"> List of items within the current title ( used for the Item Group display )</param>
        /// <param name="Static_Web_Content"> HTML content-based browse, info, or imple CMS-style web content objects.  These are objects which are read from a static HTML file and much of the head information must be maintained </param>
        public Html_MainWriter(SobekCM_Navigation_Object Current_Mode,
            Item_Aggregation Hierarchy_Object,
            Search_Results_Statistics Results_Statistics,
            List<iSearch_Title_Result> Paged_Results,
            Item_Aggregation_Browse_Info Browse_Object,
            SobekCM_Item Current_Item,
            Page_TreeNode Current_Page,
            SobekCM_Skin_Object HTML_Skin,
            User_Object Current_User,
            Language_Support_Info Translator,
            Aggregation_Code_Manager Code_Manager,
            Item_Lookup_Object Item_List,
            Statistics_Dates Stats_Date_Range,
            Recent_Searches Search_History,
            Dictionary<string, Wordmark_Icon> Icon_Dictionary,
            List<Thematic_Heading> Thematic_Headings,
            Public_User_Folder Public_Folder,
            Dictionary<string, string> Aggregation_Aliases,
            SobekCM_Skin_Collection Web_Skin_Collection,
            Checked_Out_Items_List Checked_Items,
            IP_Restriction_Ranges IP_Restrictions,
            Portal_List URL_Portals,
            SobekCM_SiteMap Site_Map,
            SobekCM_Items_In_Title Items_In_Title,
            HTML_Based_Content Static_Web_Content )
            : base(Current_Mode, Hierarchy_Object, Results_Statistics, Paged_Results, Browse_Object,  Current_Item, Current_Page, Static_Web_Content)
        {
            // Save parameters
            htmlSkin = HTML_Skin;
            translator = Translator;
            codeManager = Code_Manager;
            itemList = Item_List;
            statsDateRange = Stats_Date_Range;
            searchHistory = Search_History;
            currentUser = Current_User;
            iconList = Icon_Dictionary;
            thematicHeadings = Thematic_Headings;
            publicFolder = Public_Folder;
            aggregationAliases = Aggregation_Aliases;
            webSkins = Web_Skin_Collection;
            checkedItems = Checked_Items;
            ipRestrictionInfo = IP_Restrictions;
            urlPortals = URL_Portals;
            siteMap = Site_Map;
            itemsInTitle = Items_In_Title;

            // Set some defaults
            finishPageInAddFinalHtmlMethod = false;

            // Handle basic events which may be fired by the internal header

            if (HttpContext.Current.Request.Form["internal_header_action"] != null)
            {
                // Pull the action value
                string internalHeaderAction = HttpContext.Current.Request.Form["internal_header_action"].Trim();

                // Was this to hide or show the header?
                if ((internalHeaderAction == "hide") || (internalHeaderAction == "show"))
                {
                    // Pull the current visibility from the session
                    bool shown = true;
                    if ((HttpContext.Current.Session["internal_header"] != null) && (HttpContext.Current.Session["internal_header"].ToString() == "hidden"))
                    {
                        shown = false;
                    }
                    if ((internalHeaderAction == "hide") && (shown))
                    {
                        HttpContext.Current.Session["internal_header"] = "hidden";
                        HttpContext.Current.Response.Redirect(currentMode.Redirect_URL(), true);
                    }
                    if ((internalHeaderAction == "show") && (!shown))
                    {
                        HttpContext.Current.Session["internal_header"] = "shown";
                        HttpContext.Current.Response.Redirect(currentMode.Redirect_URL(), true);
                    }
                }
            }
        }