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aurelien |
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package org.tela_botanica.client.vues.observation;
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import java.util.Vector;
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import org.tela_botanica.client.utils.Configuration;
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import com.google.gwt.event.dom.client.KeyPressEvent;
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import com.google.gwt.event.dom.client.KeyPressHandler;
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import com.google.gwt.http.client.Request;
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import com.google.gwt.http.client.RequestBuilder;
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import com.google.gwt.http.client.RequestCallback;
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import com.google.gwt.http.client.RequestException;
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import com.google.gwt.http.client.Response;
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import com.google.gwt.json.client.JSONArray;
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import com.google.gwt.json.client.JSONParser;
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import com.google.gwt.json.client.JSONValue;
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import com.google.gwt.user.client.Timer;
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import com.google.gwt.user.client.ui.Composite;
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import com.google.gwt.user.client.ui.IsWidget;
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import com.google.gwt.user.client.ui.MultiWordSuggestOracle;
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import com.google.gwt.user.client.ui.SuggestBox;
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import com.google.gwt.user.client.ui.SuggestOracle;
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public class FormulaireAutocompletion extends Composite implements IsWidget {
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MultiWordSuggestOracle msu = new MultiWordSuggestOracle();
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SuggestBox suggestions = null;
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Timer suggestionTimer = null;
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SuggestOracle.Request requeteOracle;
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SuggestOracle.Callback callBackOracle;
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int tempsAvantRequete = 500;
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public FormulaireAutocompletion() {
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suggestions = new SuggestBox(msu);
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suggestions.setWidth(300+"px");
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suggestions.addKeyPressHandler(new KeyPressHandler() {
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public void onKeyPress(KeyPressEvent event) {
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if(event.getUnicodeCharCode() != 0) {
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if(suggestionTimer == null) {
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suggestionTimer = new Timer() {
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public void run() {
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requeteSuggestions(suggestions.getValue());
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}
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};
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suggestionTimer.schedule(tempsAvantRequete);
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} else {
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suggestionTimer.schedule(tempsAvantRequete);
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}
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}
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}
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});
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requeteOracle = new SuggestOracle.Request();
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callBackOracle = new SuggestOracle.Callback() {
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public void onSuggestionsReady(
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com.google.gwt.user.client.ui.SuggestOracle.Request request,
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com.google.gwt.user.client.ui.SuggestOracle.Response response) {
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suggestions.showSuggestionList();
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}
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};
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this.setWidget(suggestions);
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}
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public void setTempsAvantRequete(int temps) {
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tempsAvantRequete = temps;
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}
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public int getTempsAvantRequete(int temps) {
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return tempsAvantRequete;
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}
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private void requeteSuggestions(final String requete) {
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String requeteAjax = requete;
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String[] parties = requete.split(" ", 2);
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if(parties.length == 2) {
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if(parties[1].trim().isEmpty()) {
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parties[1] = "*";
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}
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requeteAjax = parties[0]+"/"+parties[1];
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}
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RequestBuilder rb = new RequestBuilder(RequestBuilder.GET,Configuration.getServiceBaseUrl()
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+"/NameSearch/"+requeteAjax) ;
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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) {
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// TODO Auto-generated method stub
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}
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public void onResponseReceived(final Request request,
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final Response response) {
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final JSONValue responseValue = JSONParser.parseStrict(response.getText());
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JSONArray noms;
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if ((noms=responseValue.isArray()) != null) {
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msu.clear();
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final int taillemax = noms.size();
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for (int i = 0; i < taillemax; i++) {
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msu.add(noms.get(i).isArray().get(0).isString().stringValue());
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}
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msu.requestSuggestions(requeteOracle, callBackOracle);
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}
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}
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}) ;
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} catch (RequestException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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}
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}
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