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