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benjamin |
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package org.tela_botanica.del.client.navigation.event;
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import org.tela_botanica.del.client.cache.ClientCache;
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import org.tela_botanica.del.client.history.NavigationStatesConstants;
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import org.tela_botanica.del.client.modeles.Observation;
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import org.tela_botanica.del.client.navigation.event.validateobservation.ValidateImageEvent;
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import org.tela_botanica.del.client.navigation.event.validateobservation.ValidateImageEventHandler;
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import com.google.gwt.event.shared.HandlerManager;
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import com.google.gwt.user.client.History;
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public class EventBus extends HandlerManager {
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private static EventBus instance;
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private EventBus() {
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super(null);
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instance = this;
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createHandlers();
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}
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public static EventBus getInstance() {
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if (instance == null) {
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instance = new EventBus();
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}
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return instance;
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}
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private void createHandlers() {
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addHandler(ValidateImageEvent.TYPE, new ValidateImageEventHandler() {
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@Override
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public void onValidateImage(ValidateImageEvent event) {
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doValidateImage(event.getImageCel());
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}
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});
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}
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private void doValidateImage(Observation observation) {
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ClientCache.getInstance().setCurrentImageCel(observation);
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History.newItem(NavigationStatesConstants.VALIDATION_PAGE, true);
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History.fireCurrentHistoryState();
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}
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}
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