Subversion Repositories eFlore/Applications.cel

package org.tela_botanica.client.util;

import java.util.ArrayList;

import java.util.Iterator;

import java.util.List;

import org.tela_botanica.client.interfaces.Rafraichissable;

import org.tela_botanica.client.modeles.dao.ListeReferentielChampsEtendusDAO;

import org.tela_botanica.client.modeles.objets.Configuration;

import com.google.gwt.core.client.Callback;

import com.google.gwt.user.client.Timer;

import com.gwtext.client.core.EventCallback;

import com.gwtext.client.core.EventObject;

import com.gwtext.client.core.Ext;

import com.gwtext.client.core.ListenerConfig;

import com.gwtext.client.data.ArrayReader;

import com.gwtext.client.data.FieldDef;

import com.gwtext.client.data.MemoryProxy;

import com.gwtext.client.data.Record;

import com.gwtext.client.data.RecordDef;

import com.gwtext.client.data.Store;

import com.gwtext.client.data.StringFieldDef;

import com.gwtext.client.widgets.Component;

import com.gwtext.client.widgets.ToolTip;

import com.gwtext.client.widgets.form.ComboBox;

import com.gwtext.client.widgets.form.Field;

import com.gwtext.client.widgets.form.event.ComboBoxListenerAdapter;

public class ChampSaisieEtendu extends ComboBox implements Rafraichissable {

		// TODO: faire un enum

		private final int KEY_ALT = 18;

		private final int KEY_BACKSPACE = 8;

		private final int KEY_CTRL = 17;

		private final int KEY_DELETE = 46;

		private final int KEY_DOWN = 40;

		private final int KEY_END = 35;

		private final int KEY_ENTER = 13;

		private final int KEY_ESCAPE = 27;

		private final int KEY_HOME = 36;

		private final int KEY_LEFT = 37;

		private final int KEY_PAGEDOWN = 34;

		private final int KEY_PAGEUP = 33;

		private final int KEY_RIGHT = 39;

		private final int KEY_SHIFT = 16;

		private final int KEY_TAB = 9;

		private final int KEY_UP = 38;

		private boolean selectionValeur = false;

		private boolean estModifie = false;

		private String cle = null;

		private String label = null;

		private Timer timer = null;

		final String resultTplRefPerso = "<div class=\"search-item-ref\">{valeur}</div>";

		private List<String> cacheValeurs;

		private Record rdSelectionne = null;

		private String valeurBrute = "";

		private String description = null;

		private ToolTip tpDesc = null;

		public ChampSaisieEtendu(String label, String cle) {

			super(label,cle);

			this.cle =cle;

			this.label = label;

			setTpl(resultTplRefPerso);

			setMode(ComboBox.REMOTE);

			setItemSelector("div.search-item-ref");

			setTypeAhead(false);

			setLoadingText("Recherche...");

			setHideTrigger(true);

			setValidateOnBlur(false);

		    ListenerConfig listenerConfigAutocompletion=new ListenerConfig();

		    listenerConfigAutocompletion.setDelay(200);

		    listenerConfigAutocompletion.setStopPropagation(false);

		    listenerConfigAutocompletion.setStopEvent(false);

		    initStoreVide();

		    if(Configuration.saisieChampsEtendusActivee()) {

				addKeyPressListener(new EventCallback() {

					@Override

					public void execute(EventObject e) {

						switch(e.getKey()) {

						  case KEY_ALT:

		  	    	      case KEY_CTRL:

		  	    	      case KEY_END:

		  	    	      case KEY_ESCAPE:

		  	    	      case KEY_HOME:

		  	    	      case KEY_LEFT:

		  	    	      case KEY_PAGEDOWN:

		  	    	      case KEY_PAGEUP:

		  	    	      case KEY_RIGHT:

		  	    	      case KEY_SHIFT:

		  	    	      case KEY_TAB:

		  	    	      case KEY_UP:

			    	        break;

		  	    	      case KEY_ENTER:

		  	    	    	  if(rdSelectionne != null) {

		  	    	    		  setValue(rdSelectionne.getAsString("valeur"));

		  	    	    		  selectionValeur=true;

		  	    	    		  valeurBrute = rdSelectionne.getAsString("valeur");

		  	    	    	  }

			              break;

		  	    	      case KEY_DOWN:

		  	    	    	  if(getValueAsString().isEmpty() && !isExpanded()) {

		  	    	    		  obtenirListeValeurs("*");

		  	    	    	  }

		  	    	      break;

		  	    	      default:

		  	    	    	if(timer != null) {

			    	    		timer.cancel();

			    	    	}

			    	    	timer = new Timer() {

								@Override

								public void run() {

				  	    	      	obtenirListeValeurs();

								}

							};

							timer.schedule(300);

							valeurBrute = getValueAsString();

							setValue(valeurBrute);

						}

					}

			    },listenerConfigAutocompletion);

		    }

			addListener(new ComboBoxListenerAdapter() {

	            @Override

				public void onSelect(ComboBox comboBox, Record record, int index) {

	            	rdSelectionne = record;

	            	setRawValue(rdSelectionne.getAsString("valeur"));

	            }

	            @Override

				public void onBlur(Field field) {

	            	if(rdSelectionne != null && !rdSelectionne.getAsString("valeur").equals(valeurBrute)) {

	            		setRawValue(valeurBrute);

	            	}

	            }

	         });

			// A activer pour télécharger la description

			// si jamais on le décide

			addListener(new ComboBoxListenerAdapter() {

				@Override

				public void onRender(Component component) {

					setLargeurChamp();

					ChampSaisieEtendu.this.getEl().addListener("mouseover", new EventCallback() {

						@Override

						public void execute(EventObject e) {

							if(description == null) {

								telechargerEtAfficherDescriptionDistante();

							} else {

								afficherDescription(description);

							}

						}

					});

				}

			});

		}

		private void telechargerEtAfficherDescriptionDistante() {

			ListeReferentielChampsEtendusDAO.telechargerDescriptionWikini(cle, new Callback<String, String>() {

				@Override

				public void onSuccess(String description) {

					ChampSaisieEtendu.this.description = description;

					afficherDescription(description);

				}

				@Override

				public void onFailure(String description) {

					afficherDescription(description);

				}

			});

		}

		private void afficherDescription(String description) {

			if(!description.trim().isEmpty()) {

				if(tpDesc == null) {

					tpDesc = new ToolTip(description);

					tpDesc.applyTo(this.getElement());

					tpDesc.showAt(ChampSaisieEtendu.this.getEl().getX(), ChampSaisieEtendu.this.getEl().getY());

				} else {

					tpDesc.show();

				}

			}

		}

		@Override

		public void rafraichir(Object nouvelleDonnees, boolean repandreRaffraichissement) {

			@SuppressWarnings("unchecked")

			ArrayList<String> valeurs = (ArrayList<String>)nouvelleDonnees;

			cacheValeurs = valeurs;

			int i = 0;

			Object[][] refData = new Object[valeurs.size()][1];

			for (Iterator<String> it = valeurs.iterator(); it.hasNext();)

			{

				refData[i][0]= it.next();

				i++;

			}

			FieldDef defValeur = new StringFieldDef("valeur");

			FieldDef[] defTab = {defValeur};

			RecordDef rd = new RecordDef(defTab);

			final MemoryProxy dataProxy = new MemoryProxy(refData);

			final ArrayReader reader = new ArrayReader(rd);

			Store store = new Store(dataProxy,reader);

			setStore(store);

			store.load();

		}

		private void obtenirListeValeurs() {

			String valeurChamp = getRawValue();

			obtenirListeValeurs(valeurChamp);

		}

		private void obtenirListeValeurs(String valeurChamp) {

			if(valeurChamp == null) {

				valeurChamp = "";

			} else {

				valeurChamp += "*";

			}

			ListeReferentielChampsEtendusDAO lrceDao = new ListeReferentielChampsEtendusDAO(null);

			lrceDao.obtenirListeValeursChampEtendu(this, cle, valeurChamp);

		}

		public void setLargeurChamp() {

			// Correction un peu moche pour améliorer l'affichage du champ

			String idElementEnfant = Ext.get(("x-form-el-"+cle)).getFirstChild().getId();

			Ext.get(idElementEnfant).setWidth("90%", false);

			Ext.get(cle).setWidth("100%", false);

		}

		private void initStoreVide() {

			Object[][] refData = new Object[0][1];

			FieldDef defValeur = new StringFieldDef("valeur");

			FieldDef[] defTab = {defValeur};

			RecordDef rd = new RecordDef(defTab);

			final MemoryProxy dataProxy = new MemoryProxy(refData);

			final ArrayReader reader = new ArrayReader(rd);

			Store store = new Store(dataProxy,reader);

			setStore(store);

			store.load();

		}

		@Override

		public void setValue(String valeur) {

			valeurBrute = valeur;

			super.setValue(valeur);

		}

		public String getCle() {

			return cle;

		}

		public String getLabel() {

			return label;

		}

}