| New file |
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| 0,0 → 1,282 |
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| package org.tela_botanica.client.util.autocompletion; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.tela_botanica.client.cel2; |
| import org.tela_botanica.client.modeles.objets.Utilisateur; |
| |
| import com.google.gwt.core.client.Callback; |
| import com.google.gwt.core.client.JavaScriptObject; |
| import com.google.gwt.event.dom.client.KeyCodes; |
| import com.google.gwt.event.dom.client.KeyDownEvent; |
| import com.google.gwt.event.dom.client.KeyDownHandler; |
| import com.google.gwt.event.dom.client.KeyPressEvent; |
| import com.google.gwt.event.dom.client.KeyPressHandler; |
| import com.google.gwt.event.logical.shared.SelectionEvent; |
| import com.google.gwt.event.logical.shared.SelectionHandler; |
| import com.google.gwt.event.logical.shared.ValueChangeEvent; |
| import com.google.gwt.event.logical.shared.ValueChangeHandler; |
| 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.user.client.Event; |
| import com.google.gwt.user.client.Timer; |
| import com.google.gwt.user.client.Window; |
| import com.google.gwt.user.client.ui.ChangeListener; |
| import com.google.gwt.user.client.ui.Label; |
| import com.google.gwt.user.client.ui.MultiWordSuggestOracle; |
| import com.google.gwt.user.client.ui.SuggestBox; |
| import com.google.gwt.user.client.ui.SuggestBox.DefaultSuggestionDisplay; |
| import com.google.gwt.user.client.ui.TextBox; |
| import com.google.gwt.user.client.ui.SuggestBox.SuggestionDisplay; |
| import com.google.gwt.user.client.ui.SuggestOracle; |
| import com.google.gwt.user.client.ui.Widget; |
| import com.google.gwt.user.client.ui.SuggestOracle.Suggestion; |
| import com.gwtext.client.widgets.BoxComponent; |
| import com.gwtext.client.widgets.Component; |
| import com.gwtext.client.widgets.Container; |
| import com.gwtext.client.widgets.Panel; |
| import com.gwtext.client.widgets.event.PanelListener; |
| import com.gwtext.client.widgets.event.PanelListenerAdapter; |
| import com.gwtext.client.widgets.layout.FitLayout; |
| |
| @SuppressWarnings("unchecked") |
| public abstract class AutoCompletionComboBox extends Panel { |
| |
| Label label = null; |
| MultiWordSuggestOracle msu = null; |
| SuggestBox suggestions = null; |
| DefaultSuggestionDisplay sgd = null; |
| |
| Callback<String, String> surCopierColler = null; |
| |
| SuggestOracle.Request requeteOracle; |
| SuggestOracle.Callback callBackOracle; |
| |
| Timer suggestionTimer = null; |
| int tempsAvantRequete = 500; |
| |
| Map<String, String> possibilites = null; |
| |
| String urlRequete = ""; |
| |
| public AutoCompletionComboBox(String nomLabel, String urlRequete) { |
| |
| this.setStyleName("champAutoComplete"); |
| |
| this.label = new Label(nomLabel+":"); |
| this.urlRequete = urlRequete; |
| |
| sgd = new SuggestBox.DefaultSuggestionDisplay(); |
| msu = new MultiWordSuggestOracle() { |
| @Override |
| public void requestSuggestions(Request request, Callback callback) { |
| List<MultiWordSuggestion> retenus = new ArrayList<MultiWordSuggestion>(); |
| Iterator<String> it = possibilites.keySet().iterator(); |
| while (it.hasNext()) { |
| String cle = it.next(); |
| MultiWordSuggestion muWoSug = new MultiWordSuggestion(possibilites.get(cle), possibilites.get(cle)); |
| retenus.add(muWoSug); |
| } |
| |
| Response reponse = new Response(retenus); |
| callback.onSuggestionsReady(request, reponse); |
| } |
| }; |
| |
| suggestions = new SuggestBox(msu, new TextBox(), sgd) { |
| public void onBrowserEvent(Event event) { |
| switch (event.getTypeInt()) { |
| case Event.ONPASTE: { |
| if(surCopierColler != null) { |
| surCopierColler.onSuccess(suggestions.getValueBox().getValue()); |
| } |
| } |
| break; |
| default: |
| super.onBrowserEvent(event); |
| } |
| |
| } |
| }; |
| |
| suggestions.setAutoSelectEnabled(false); |
| setLayout(new FitLayout()); |
| add(label); |
| add(suggestions); |
| gererEvenements(); |
| } |
| |
| public void gererEvenements() { |
| suggestions.addKeyDownHandler(new KeyDownHandler() { |
| |
| @Override |
| public void onKeyDown(KeyDownEvent event) { |
| // Lorsque la liste de suggestions est ouverte, une frappe sur entrée selectionne la valeur |
| // Si elle est fermée, elle déclenche la fonction abstraite de validation (utile pour les champs |
| // du genre station, milieu etc... et la saisie d'obs rapide |
| if(event.getNativeKeyCode() == KeyCodes.KEY_ENTER) { |
| if((sgd == null || !sgd.isSuggestionListShowing())) { |
| onValidationSaisie(); |
| event.stopPropagation(); |
| return; |
| } else { |
| // Dans les autres cas, un appui sur entrée ne doit pas redéclencher l'autcomplétion |
| return; |
| } |
| } |
| |
| // Tout autre frappe d'un caractère "normal" déclenche le timer d'autocomplétion |
| if(!KeyDownEvent.isArrow(event.getNativeKeyCode())) { |
| gererTimer(); |
| } |
| } |
| |
| }); |
| |
| requeteOracle = new SuggestOracle.Request(); |
| callBackOracle = new SuggestOracle.Callback() { |
| |
| public void onSuggestionsReady(SuggestOracle.Request request, SuggestOracle.Response response) { |
| suggestions.showSuggestionList(); |
| } |
| }; |
| |
| suggestions.addSelectionHandler(new SelectionHandler<SuggestOracle.Suggestion>(){ |
| @Override |
| public void onSelection(SelectionEvent<Suggestion> event) { |
| onSelectionValeur(); |
| } |
| }); |
| |
| suggestions.addValueChangeHandler(new ValueChangeHandler<String>() { |
| @Override |
| public void onValueChange(ValueChangeEvent<String> event) { |
| onModificationValeur(); |
| } |
| }); |
| |
| surCopierColler = new Callback<String, String>() { |
| @Override |
| public void onSuccess(String result) { |
| gererTimer(); |
| } |
| |
| @Override |
| public void onFailure(String reason) { |
| // rien à faire ça n'échoue jamais |
| } |
| }; |
| |
| addListener(new PanelListenerAdapter() { |
| |
| @Override |
| public void onResize(BoxComponent component, int adjWidth, int adjHeight, |
| int rawWidth, int rawHeight) { |
| redimensionner(rawWidth); |
| } |
| }); |
| } |
| |
| public void redimensionner(final int largeur) { |
| suggestions.setWidth((largeur - label.getOffsetWidth() - 13)+"px"); |
| } |
| |
| public void gererTimer() { |
| if(suggestionTimer == null) { |
| suggestionTimer = new Timer() { |
| public void run() { |
| requeteSuggestions(); |
| } |
| }; |
| suggestionTimer.schedule(tempsAvantRequete); |
| } else { |
| suggestionTimer.schedule(tempsAvantRequete); |
| } |
| } |
| |
| public void setTempsAvantRequete(int temps) { |
| tempsAvantRequete = temps; |
| } |
| |
| public int getTempsAvantRequete(int temps) { |
| return tempsAvantRequete; |
| } |
| |
| public void requeteSuggestions() { |
| |
| // Suppression des espaces et caractères inutiles |
| String valeur = suggestions.getValue().trim().isEmpty() ? "*" : suggestions.getValue().trim(); |
| final String requeteAjax = URL.encodeQueryString(valeur); |
| |
| // ceci permet au composant qui utilise l'autocomplétion |
| // d'annuler une requete |
| if(requeteAjax == null) { |
| return; |
| } |
| |
| String urlRequeteUtil = urlRequete.replace("{utilisateur}", Utilisateur.getInstance().getIdentifiantUtilisateurConsulte()); |
| String urlProxy = urlRequeteUtil+requeteAjax; |
| |
| RequestBuilder rb = new RequestBuilder(RequestBuilder.GET, urlProxy) ; |
| try { |
| rb.sendRequest(null, new RequestCallback() { |
| public void onError(final Request request, final Throwable exception) { |
| // TODO Auto-generated method stub |
| } |
| |
| public void onResponseReceived(final Request request, |
| final Response response) { |
| surReponseRequete(requeteAjax, response); |
| } |
| }) ; |
| |
| } catch (RequestException e) { |
| // TODO Auto-generated catch block |
| e.printStackTrace(); |
| } |
| } |
| |
| public void surReponseRequete(String requete, Response response) { |
| possibilites = parserResultatRequete(response); |
| msu.clear(); |
| Iterator<String> it = possibilites.keySet().iterator(); |
| while (it.hasNext()) { |
| msu.add(possibilites.get(it.next())); |
| } |
| |
| requeteOracle.setQuery(requete); |
| msu.requestSuggestions(requeteOracle, callBackOracle); |
| } |
| |
| public String getText() { |
| return suggestions.getText(); |
| } |
| |
| public String getRawValue() { |
| return suggestions.getText(); |
| } |
| |
| public void setValue(String texte) { |
| suggestions.setText(texte); |
| } |
| |
| public void reset() { |
| suggestions.setValue(""); |
| } |
| |
| public void setTabIndex(int index) { |
| suggestions.setTabIndex(index); |
| } |
| |
| protected abstract Map<String, String> parserResultatRequete(Response response); |
| protected abstract void onModificationValeur(); |
| protected abstract void onSelectionValeur(); |
| protected abstract void onValidationSaisie(); |
| } |