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package org.tela_botanica.del.client.composants.formulaires; |
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import com.google.gwt.event.dom.client.KeyPressEvent; |
import com.google.gwt.event.dom.client.KeyPressHandler; |
import com.google.gwt.http.client.Request; |
import com.google.gwt.http.client.RequestBuilder; |
import com.google.gwt.http.client.RequestCallback; |
import com.google.gwt.http.client.RequestException; |
import com.google.gwt.http.client.Response; |
import com.google.gwt.http.client.URL; |
import com.google.gwt.json.client.JSONArray; |
import com.google.gwt.json.client.JSONParser; |
import com.google.gwt.json.client.JSONValue; |
import com.google.gwt.user.client.Timer; |
import com.google.gwt.user.client.ui.HasWidgets; |
import com.google.gwt.user.client.ui.SuggestOracle; |
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public class AutoCompletionComboBoxPresenteur { |
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private AutoCompletionComboBoxVue autoCompletionComboBoxVue = new AutoCompletionComboBoxVue(); |
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SuggestOracle.Request requeteOracle; |
SuggestOracle.Callback callBackOracle; |
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Timer suggestionTimer = null; |
int tempsAvantRequete = 500; |
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public AutoCompletionComboBoxPresenteur() { |
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} |
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public void go(HasWidgets composite) { |
composite.add(autoCompletionComboBoxVue); |
gererEvenements(); |
} |
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public void gererEvenements() { |
autoCompletionComboBoxVue.getSuggestBox().addKeyPressHandler(new KeyPressHandler() { |
public void onKeyPress(KeyPressEvent event) { |
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if(event.getUnicodeCharCode() != 0) { |
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if(suggestionTimer == null) { |
suggestionTimer = new Timer() { |
public void run() { |
requeteSuggestions(autoCompletionComboBoxVue.getSuggestBox().getValue()); |
} |
}; |
suggestionTimer.schedule(tempsAvantRequete); |
} else { |
suggestionTimer.schedule(tempsAvantRequete); |
} |
} |
} |
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}); |
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requeteOracle = new SuggestOracle.Request(); |
callBackOracle = new SuggestOracle.Callback() { |
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public void onSuggestionsReady( |
com.google.gwt.user.client.ui.SuggestOracle.Request request, |
com.google.gwt.user.client.ui.SuggestOracle.Response response) { |
autoCompletionComboBoxVue.getSuggestBox().showSuggestionList(); |
} |
}; |
} |
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public void setTempsAvantRequete(int temps) { |
tempsAvantRequete = temps; |
} |
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public int getTempsAvantRequete(int temps) { |
return tempsAvantRequete; |
} |
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public String getValeur() { |
return autoCompletionComboBoxVue.getSuggestBox().getValue(); |
} |
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private void requeteSuggestions(final String requete) { |
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String requeteAjax = requete; |
String[] parties = requete.split(" ", 2); |
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if(parties.length == 2) { |
if(parties[1].trim().isEmpty()) { |
parties[1] = "*"; |
} |
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requeteAjax = parties[0]+"/"+parties[1]; |
} |
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String altUrl = "http://www.tela-botanica.org/eflore/cel2/jrest/NameSearch/"; |
String urlProxy = "proxy.php?url="+URL.encode(altUrl+requeteAjax); |
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RequestBuilder rb = new RequestBuilder(RequestBuilder.GET, urlProxy) ; |
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try { |
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rb.sendRequest(null, new RequestCallback() { |
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public void onError(final Request request, final Throwable exception) { |
// TODO Auto-generated method stub |
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} |
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public void onResponseReceived(final Request request, |
final Response response) { |
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final JSONValue responseValue = JSONParser.parseStrict(response.getText()); |
JSONArray noms; |
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if ((noms=responseValue.isArray()) != null) { |
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final int taillemax = noms.size(); |
String[] valeurs = new String[taillemax]; |
for (int i = 0; i < taillemax; i++) { |
valeurs[i] = (noms.get(i).isArray().get(0).isString().stringValue()); |
} |
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autoCompletionComboBoxVue.remplirListe(valeurs); |
requeteOracle.setQuery(requete); |
autoCompletionComboBoxVue.afficherSuggestions(requeteOracle, callBackOracle); |
} |
} |
}) ; |
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} catch (RequestException e) { |
// TODO Auto-generated catch block |
e.printStackTrace(); |
} |
} |
} |