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/*
 * Copyright 2006 Google Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package org.tela_botanica.client;

import java.util.Date;

import com.google.gwt.json.client.JSONArray;
import com.google.gwt.json.client.JSONNull;
import com.google.gwt.json.client.JSONParser;
import com.google.gwt.json.client.JSONString;
import com.google.gwt.json.client.JSONValue;
import com.google.gwt.user.client.HTTPRequest;
import com.google.gwt.user.client.History;
import com.google.gwt.user.client.ResponseTextHandler;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.ChangeListener;
import com.google.gwt.user.client.ui.CheckBox;
import com.google.gwt.user.client.ui.ClickListener;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.Grid;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.KeyboardListener;
import com.google.gwt.user.client.ui.PopupPanel;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;

/**
 * Composite permet de wrapper des Widget pour creer un nouveau Widget cf methode initWidget()
 */

public class EntryPanel extends Composite   {
        
  private NameAssistant nameAssistant = null;
  private LocationAssistant locationAssistant = null;
  TextBox date = new TextBox();
  TextBox complementLocation = new TextBox();
  TextBox comment = new TextBox();
  Button dateSelector = new Button("...");
  boolean visible=false;
  Mediator mediator=null;

  private String serviceBaseUrl = null;
  
  private String user= null;
  private String ordre =null;
  
  final CalendarWidget calendar = new CalendarWidget();
  
  private PopupPanel choicesPopup = new PopupPanel(true);

  public EntryPanel(final Mediator med) {
         
          
   mediator=med;

   
   
   mediator.registerEntryPanel(this);
   
   mediator.registerDate(date);
   mediator.registerComment(comment);
   mediator.registerComplementLocation(complementLocation);
   
   
   user=mediator.getUser();
   serviceBaseUrl = mediator.getServiceBaseUrl();

   
   
   VerticalPanel outer = new VerticalPanel();
   

        outer.add(new HTML("<b>Saisir&nbsp;un&nbsp;relev&eacute;&nbsp;:</b>"));

   
   
   Grid inner = new Grid(3,4);

   for (int i=0; i<3;i++) {
        inner.getCellFormatter().setWidth(i, 0, "3%");
        inner.getCellFormatter().setWidth(i, 1, "47%");
        inner.getCellFormatter().setWidth(i, 2, "3%");
        inner.getCellFormatter().setWidth(i, 3, "47%");
   }


        nameAssistant = new NameAssistant(mediator);
        locationAssistant = new LocationAssistant(mediator);
        

        
        
        // Saisie Nom
        
     HTML labelNameAssistant = new HTML("Esp&egrave;ce:&nbsp;");
     inner.setWidget(0,0,labelNameAssistant);
     inner.setWidget(0,1,nameAssistant);
    
     nameAssistant.setWidth("100%");

         // Saisie lieu
         
     HTML labelLocationAssistant= new HTML("Commune:&nbsp;");
     inner.setWidget(1,0,labelLocationAssistant);
     inner.setWidget(1,1,locationAssistant);

     locationAssistant.setWidth("100%");
   
     // Saisie Date 
         
     choicesPopup.add(calendar);
     
     dateSelector.addClickListener(new ClickListener () {
    
       public void onClick(Widget w) {
          
           if (visible) {
                  visible=false; 
                  choicesPopup.hide();
           }
           else {
                visible=true; 
            choicesPopup.show();
                choicesPopup.setPopupPosition(dateSelector.getAbsoluteLeft(),
                dateSelector.getAbsoluteTop()  - dateSelector.getOffsetHeight() - choicesPopup.getOffsetHeight());
                choicesPopup.setWidth(dateSelector.getOffsetWidth() + "px");
           }
       }
     
     });
     
     calendar.addChangeListener(new ChangeListener() {

     public void onChange(Widget sender) {
         
       Date dateSelected=calendar.getDate();
       date.setText(dateSelected.getDate()+"/"+(dateSelected.getMonth()+1)+"/"+(dateSelected.getYear()+1900));
       
       visible=false; 
       choicesPopup.hide();
     }
     });
     
    HTML labelDate= new HTML("Date:&nbsp;");
    inner.setWidget(2,0,labelDate);
    
    HorizontalPanel datePanel = new HorizontalPanel();
    datePanel.add(date);
    datePanel.add(dateSelector);
    inner.setWidget(2,1,datePanel);
    

    
    
    date.addKeyboardListener( new KeyboardListener() {

                  public void onKeyDown(Widget arg0, char arg1, int arg2) {
                          
                          
                          if(arg1 == KEY_ENTER)
                            {
                             mediator.onAddInventoryItem(); 
                             date.setText("");
                            }

                  }
                  
                  public void onKeyUp(Widget arg0, char arg1, int arg2) {
                  }

                  public void onKeyPress(Widget arg0, char arg1, int arg2) {
                  }
                  
                  }
    );
    
  

         // Saisie Complement lieu 
         
    HTML labelComplementLocation= new HTML("Station:&nbsp;");
    inner.setWidget(1,2,labelComplementLocation);
    inner.setWidget(1,3,complementLocation);

    complementLocation.setWidth("100%");

    
    complementLocation.addKeyboardListener( new KeyboardListener() {

                  public void onKeyDown(Widget arg0, char arg1, int arg2) {
                          
                          
                          if(arg1 == KEY_ENTER)
                            {
                             mediator.onAddInventoryItem(); 
                             complementLocation.setText("");
                            }

                  }
                  
                  public void onKeyUp(Widget arg0, char arg1, int arg2) {
                  }

                  public void onKeyPress(Widget arg0, char arg1, int arg2) {
                  }
                  
                  }
    );

    
         // Saisie Commentaire
         
    HTML labelComment= new HTML("Notes:&nbsp;");
    inner.setWidget(2,2,labelComment);
    inner.setWidget(2,3,comment);

    comment.setWidth("100%");

   
    comment.addKeyboardListener( new KeyboardListener() {

                  public void onKeyDown(Widget arg0, char arg1, int arg2) {
                          
                          
                          if(arg1 == KEY_ENTER)
                            {
                             mediator.onAddInventoryItem(); 
                             comment.setText("");
                            }

                  }
                  
                  public void onKeyUp(Widget arg0, char arg1, int arg2) {
                  }

                  public void onKeyPress(Widget arg0, char arg1, int arg2) {
                  }
                  
                  }
  );

   
    Button addButton = new Button("Ajout");
    Button updateButton = new Button("Modification");

    addButton.addClickListener(
    
                new ClickListener() {
                        
                          public void onClick(Widget w) {
                                     mediator.onAddInventoryItem(); 
                          }
                }
    );
    
    HorizontalPanel buttonPanel = new HorizontalPanel();
   
    
    updateButton.addClickListener(
            
                new ClickListener() {
                        
                          public void onClick(Widget w) {
                                     mediator.onModifyInventoryItem(ordre); 
                          }
                }
    );
    
    
    buttonPanel.add(addButton);
    buttonPanel.add(updateButton);
    

         inner.setWidth("100%");

         outer.add(inner);
         outer.setCellWidth(inner, "100%");
         outer.setSpacing(10);
         
        outer.setHorizontalAlignment(HorizontalPanel.ALIGN_CENTER);
    outer.add(buttonPanel);


    // Initialisation si provenance d'un lien
    
    if (History.getToken().length()>0) {

        final String anum=History.getToken();

                HTTPRequest.asyncGet(serviceBaseUrl + "/Name/" + anum,
                                new ResponseTextHandler() {

                                        public void onCompletion(String strcomplete) {

                                                JSONValue jsonValue = JSONParser.parse(strcomplete);
                                                JSONArray jsonArray;

                                                if ((jsonArray = jsonValue.isArray()) != null) {
                
                                                                String aname = ((JSONString) jsonArray.get(0)).stringValue();
                                                                
                                                                // Nom  
                                                        
                                                                if (aname.compareTo("null")!=0) {
                                                                        nameAssistant.setText(((JSONString) jsonArray.get(0)).stringValue());
                                                        
                                                                        // Numero nomenclatural 
                                                        
                                                                        nameAssistant.setValue(anum);
                                                                        
                                                                }
                                                        
                                                }
                                        }

                                });

        
    }
         

         
    initWidget(outer);
   
    
  }

        /*
         * Numero d'ordre du relevé affiché
         * 
         */
        
        public void setOrdre(String ordre) {
                this.ordre = ordre;
        }


        /*
         * Numero d'ordre du relevé affiché
         * 
         */
        
        public String getOrdre() {
                return this.ordre;
        }


  
  /**
         * Mise a jour de l'affichage a partir de données deja saisie
         * 
         */

        public void update() {

                HTTPRequest.asyncGet(serviceBaseUrl + "/Inventory/" + user + "/" + ordre, 

                new ResponseTextHandler() {

                        public void onCompletion(String str) {

                                JSONValue jsonValue = JSONParser.parse(str);
                                JSONArray jsonArray;
                                
                                
                                if ((jsonArray = jsonValue.isArray()) != null) {
                                                        // Nom saisi
                                                        nameAssistant.setText(((JSONString) jsonArray.get(0)).stringValue());
                                                        
                                                        // Numero nomenclatural
                                                
                                                        String ann=((JSONString) jsonArray .get(3)).stringValue();
                                                        
                                                        if (ann.compareTo("0")!=0) {
                                                                nameAssistant.setValue(ann);
                                                        }
                                                        
                                                        // Commune
                                                        String aloc=((JSONString) jsonArray .get(6)).stringValue();
                                                        
                                                        if (aloc.compareTo("000null")!=0) {
                                                                locationAssistant.setText(aloc);
                                                        }
                                                        else { 
                                                                locationAssistant.setText("");
                                                        }
                                                        
                                                        String adate=((JSONString) jsonArray .get(8)).stringValue();
                                                        
//                                                      Date 
                                                        if (adate.compareTo("0000-00-00 00:00:00")!=0) {
                                                                date.setText(adate); 
                                                        }
                                                        else {
                                                                date.setText(""); 
                                                        }


                                                        String astation=((JSONString) jsonArray .get(9)).stringValue();
                                                        
//                                                      Station 
                                                        if (astation.compareTo("000null")!=0) {
                                                                complementLocation.setText(astation); 
                                                        }
                                                        else {
                                                                complementLocation.setText(""); 
                                                        }
                                                        

                                                        String acomment=((JSONString) jsonArray .get(10)).stringValue();
//                                                      Notes
                                                        if (acomment.compareTo("null")!=0) {
                                                                comment.setText(acomment); 
                                                        }
                                                        else {
                                                                comment.setText(""); 
                                                        }
                                                        
                                }

                                
                                
                        }
                });

        }

        public void setUser(String user) {
                this.user = user;
        }

}