using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using WebControls.HLAdminService;

namespace WebControls {
  public partial class OKBNamedDetailControl : System.Web.UI.UserControl {

    // delegate for the stored event
    public delegate void OKBItemStoredDelegate(Object sender, EventArgs e);

    //event for the store button
    public event OKBItemStoredDelegate OKBItemStored;

    //private namedOKBItem
    private static NamedOKBItem namedOKBItem;

    /*
     * Page_load is always executed when the control will be refreshed
     */
    protected void Page_Load(object sender, EventArgs e) {
      if (UCWidth == null) {
        UCWidth = "100%";
      }
      if (UCHeight == null) {
        UCHeight = "150";
      }
      this.Panel1.Width = new Unit(UCWidth);
      this.Panel1.Height = new Unit(UCHeight);

      if (IsPostBack) {
        namedOKBItem = (NamedOKBItem)ViewState["namedOKBItem"]; 
      }
      this.setEnableState();
        
    }

    /*
     * setNamedOKBItem, set a new OKBItem to the Control
     * the Item is stored in the viewstate of the control
     */
    public void setNamedOKBItem(NamedOKBItem okbItem) {
      namedOKBItem = okbItem;
      if (namedOKBItem != null) {
        tbName.Text = namedOKBItem.Name;
        tbDescription.Text = namedOKBItem.Description;
        tbName.DataBind();
        tbDescription.DataBind();
      }
      ViewState["namedOKBItem"] = namedOKBItem;
      this.setEnableState();
    }

    /*
     * getNamedOKBItem, to get the current stored OKBItem
     */
    public NamedOKBItem getNamedOKBItem() {
      return namedOKBItem;
    }

    /*
     * setEnableState, is to se the enabledstate of the store button
     */
    private void setEnableState() {
      if (namedOKBItem == null) {
        this.Visible = false;
      } else {
        this.Visible = true;
      }
    }

    private bool isModified() {
      if (namedOKBItem.Name == tbName.Text && namedOKBItem.Description == tbDescription.Text) {
        return false;
      } else {
        return true;
      }
    }

    /*
     * DataBind is to bind data manually
     */
    public override void DataBind() {
      base.DataBind();
      tbName.DataBind();
      tbDescription.DataBind();
    }


    /*
     * btnStore_Click, is always executed, if the store button is clicked
     */
    protected void btnStore_Click(object sender, EventArgs e) {
      if (namedOKBItem != null) {
        namedOKBItem.Name = tbName.Text;
        namedOKBItem.Description = tbDescription.Text;
        ViewState["namedOKBItem"] = namedOKBItem;
        base.DataBind();
        this.setEnableState();
        if (null != OKBItemStored) {
          OKBItemStored(this, EventArgs.Empty); 
        }
      }
    }


    private string UCWidth;
    private string UCHeight;

    public string Width { get { return UCWidth; } set { UCWidth = value; } }
    public string Height { get { return UCHeight; } set { UCHeight = value; } }



    /*
     * tbName_TextChanged, is to refresh the view State of the control
     */
    protected void tbName_TextChanged(object sender, EventArgs e) {
      setEnableState();
    }

    /*
     * tbDescription_TextChanged, is to refresh the view State of the control
     */
    protected void tbDescription_TextChanged(object sender, EventArgs e) {
      setEnableState();
    }


  }
}