package e4s.tutorial;

import e4s.html.E4Method;
import e4s.html.HTML;
import e4s.html.input.extended.*;
import e4s.html.input.inlineedit.E4InlineEditCached;
import e4s.servlet.E4ModuleImplementation;
import e4s.servlet.E4ServletImplementation_Intf;

/**
 * Multiple input lines based on simple input elements (only one row per time available for editing)
 */
public class Example_LineInput extends E4ModuleImplementation
{
   public static E4Method start = null;
   
   public static class InputLine extends E4InlineEditCached
   {
      final E4InputFieldName PARAM_TITLE = new E4InputFieldName("TITLE");
      final E4InputFieldName PARAM_URL = new E4InputFieldName("URL");
      
      public InputLine(E4ServletImplementation_Intf servlet) 
      throws Exception
      {
         super("TEST",servlet);
         
         setField(new TEXTFIELD(PARAM_TITLE,"Title",20,40));
         setField(new TEXTFIELD(PARAM_URL,"URL",20,60));
         
         setAddOnInit();
         //setDisplayLabels(false);
         //setDisplayRowcount(true);
         
         setData(0,PARAM_TITLE,"Searchengine");
         setData(0,PARAM_URL,"www.google.com");

         setData(1,PARAM_TITLE,"Television");
         setData(1,PARAM_URL,"www.nbc.com");
      }

      public void dataChanged(int row) 
      throws Exception
      {
         // now, we know that row has been changed, all we need to right here is to 
         // get the data using getData(row,fieldname) and store it e.g. in our database
      }
      
      public void dataDeleted(int row) 
      throws Exception
      {
         // now, we know that row has been deleted, all we need to right here is to 
         // delete it e.g. in our database
      }
   }
   
   public void start(HTML html) 
   throws Exception
   {
      html.B().println("Please enter your favorite sites:");
      html.BR();
      html.SMALL().println("(You can enter more lines)");
      html.P();
      
      InputLine lines = new InputLine(getServlet());
      html.addElement(lines);
   }
}