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package org.tela_botanica.del.client.vues.comparaisoneflore;
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import java.util.ArrayList;
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import java.util.List;
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import org.tela_botanica.del.client.cache.CacheClient;
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import org.tela_botanica.del.client.modeles.Image;
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import org.tela_botanica.del.client.modeles.ImageServiceResultat;
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import org.tela_botanica.del.client.modeles.InformationsRecherche;
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import org.tela_botanica.del.client.navigation.evenement.BusEvenementiel;
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import org.tela_botanica.del.client.navigation.evenement.comparaisoneflore.EvenementComparaisonEflore;
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import org.tela_botanica.del.client.navigation.evenement.comparaisoneflore.GestionnaireEvenementComparaisonEflore;
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import org.tela_botanica.del.client.services.rest.ImageService;
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import org.tela_botanica.del.client.services.rest.async.ImagesParTaxonCallback;
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import org.tela_botanica.del.client.vues.plateformedetermination.formulairerechercheeflore.FormulaireRechercheEflorePresenteur;
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import com.google.gwt.event.dom.client.ClickEvent;
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import com.google.gwt.event.dom.client.ClickHandler;
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import com.google.gwt.event.dom.client.HasClickHandlers;
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import com.google.gwt.user.client.Window;
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import com.google.gwt.user.client.ui.HTMLPanel;
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import com.google.gwt.user.client.ui.HasWidgets;
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import com.google.gwt.user.client.ui.IsWidget;
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public class ComparaisonEflorePresenteur {
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public interface Vue extends IsWidget {
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public void chargerImagePrincipale(org.tela_botanica.del.client.modeles.Image image);
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public void chargerImagesEflore(List<org.tela_botanica.del.client.modeles.Image> observationsEflore, int indexImage);
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public HasClickHandlers getScrollLeftImage();
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public HasClickHandlers getScrollRightImage();
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public int getCurrentIndexImages();
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public void startChargement();
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public void stopChargement();
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public void afficherAucuneImageTrouvee();
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public HTMLPanel getFormulaireRecherche();
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public void setCurrentIndexImages(int index);
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}
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private Vue vue;
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private final ImageService imageService;
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private Image imagePrincipale;
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private String nomTaxonComparaison;
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private List<org.tela_botanica.del.client.modeles.Image> imagesEflore = new ArrayList<Image>();
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private int page = 0;
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private int nbImagesPreFetch = 10;
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public ComparaisonEflorePresenteur(Vue vue, ImageService imageService) {
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this.vue = vue;
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this.imagePrincipale = CacheClient.getInstance().getImageCourante();
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this.nomTaxonComparaison = CacheClient.getInstance().getTaxonPourRechercheEflore();
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this.imageService = imageService;
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}
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public void go(HasWidgets composite) {
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composite.add(vue.asWidget());
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vue.chargerImagePrincipale(imagePrincipale);
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chargerObservationsEflore();
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gererEvenements();
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new FormulaireRechercheEflorePresenteur().go(vue.getFormulaireRecherche());
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}
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public void chargerObservationsEflore() {
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int debut = (page * nbImagesPreFetch) + 1;
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int fin = (page + 1) * nbImagesPreFetch;
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vue.startChargement();
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InformationsRecherche informationsRecherche = new InformationsRecherche();
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informationsRecherche.setTaxon(nomTaxonComparaison);
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ImagesParTaxonCallback callback = new ImagesParTaxonCallback() {
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@Override
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public void surRetour(ImageServiceResultat imagesRecues) {
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if (imagesRecues == null || imagesRecues.getImages() == null || imagesRecues.getImages().size() == 0) {
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vue.afficherAucuneImageTrouvee();
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} else {
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addImagesEflore(imagesRecues.getImages());
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vue.stopChargement();
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vue.chargerImagesEflore(imagesEflore, vue.getCurrentIndexImages());
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}
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}
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@Override
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public void surErreur(String messageErreur) {
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vue.afficherAucuneImageTrouvee();
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Window.alert(messageErreur);
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}
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};
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imageService.getImagesParTaxon(informationsRecherche, debut, fin, callback);
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}
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private void gererEvenements() {
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vue.getScrollLeftImage().addClickHandler(new ClickHandler() {
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@Override
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public void onClick(ClickEvent event) {
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vue.chargerImagesEflore(imagesEflore, vue.getCurrentIndexImages() - 1);
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}
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});
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vue.getScrollRightImage().addClickHandler(new ClickHandler() {
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@Override
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public void onClick(ClickEvent event) {
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if (vue.getCurrentIndexImages() == imagesEflore.size() - 1) {
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page += 1;
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vue.setCurrentIndexImages(vue.getCurrentIndexImages()+1);
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chargerObservationsEflore();
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} else {
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vue.chargerImagesEflore(imagesEflore, vue.getCurrentIndexImages() + 1);
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}
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}
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});
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BusEvenementiel.getInstance().addHandler(EvenementComparaisonEflore.TYPE, new GestionnaireEvenementComparaisonEflore() {
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@Override
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public void onComparaisonEflore(EvenementComparaisonEflore event) {
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nomTaxonComparaison = event.getTaxonDemande();
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chargerObservationsEflore();
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}
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});
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}
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public List<org.tela_botanica.del.client.modeles.Image> getImagesEflore() {
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return imagesEflore;
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}
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public void addImagesEflore(List<org.tela_botanica.del.client.modeles.Image> imagesEflore) {
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this.imagesEflore.addAll(imagesEflore);
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}
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}
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