raimund@863: package de.intevation.flys.client.client.ui;
raimund@863: 
raimund@863: import java.util.ArrayList;
raimund@863: import java.util.List;
raimund@863: 
raimund@875: import com.google.gwt.core.client.GWT;
raimund@875: 
raimund@863: import com.smartgwt.client.widgets.form.DynamicForm;
raimund@863: import com.smartgwt.client.widgets.form.fields.TextItem;
raimund@863: import com.smartgwt.client.widgets.form.fields.events.ChangedEvent;
raimund@863: import com.smartgwt.client.widgets.form.fields.events.ChangedHandler;
raimund@875: import com.smartgwt.client.widgets.form.fields.events.KeyUpEvent;
raimund@875: import com.smartgwt.client.widgets.form.fields.events.KeyUpHandler;
raimund@863: import com.smartgwt.client.widgets.layout.HLayout;
raimund@863: 
raimund@863: import de.intevation.flys.client.client.event.FilterHandler;
raimund@863: import de.intevation.flys.client.client.event.StringFilterEvent;
raimund@875: import de.intevation.flys.client.client.FLYSConstants;
raimund@863: 
raimund@863: 
raimund@863: /**
raimund@863:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
raimund@863:  */
raimund@863: public class TableFilter
raimund@863: extends      HLayout
raimund@875: implements   ChangedHandler, KeyUpHandler
raimund@863: {
raimund@875:     /** The message class that provides i18n strings. */
raimund@875:     protected FLYSConstants MESSAGES = GWT.create(FLYSConstants.class);
raimund@863: 
raimund@863:     protected List<FilterHandler> handlers;
raimund@863: 
raimund@863:     protected TextItem searchfield;
raimund@863: 
raimund@863: 
raimund@863:     public TableFilter() {
raimund@863:         super();
raimund@875:         searchfield = new TextItem(MESSAGES.search());
raimund@863:         handlers    = new ArrayList<FilterHandler>();
raimund@863: 
raimund@863:         searchfield.addChangedHandler(this);
raimund@875:         searchfield.addKeyUpHandler(this);
raimund@863: 
raimund@863:         DynamicForm form = new DynamicForm();
raimund@863:         form.setFields(searchfield);
raimund@863: 
raimund@863:         addMember(form);
raimund@863:     }
raimund@863: 
raimund@863: 
raimund@863:     public void onChanged(ChangedEvent event) {
raimund@863:         // This event handler is to slow...
raimund@863: //        fireFilterCriteriaChanged(getSearchString());
raimund@863:     }
raimund@863: 
raimund@863: 
raimund@875:     public void onKeyUp(KeyUpEvent event) {
raimund@863:         //To deactivate "As you type" filter add
raimund@863:         // ' && event.getKeyName().equals("Enter")'
raimund@863:         // to the if-clause.
raimund@863:         if (event != null) {
raimund@869:             fireFilterCriteriaChanged(getSearchString());
raimund@863:         }
raimund@863:     }
raimund@863: 
raimund@863: 
raimund@863:     public String getSearchString() {
raimund@875:         if (searchfield.getValueAsString() == null) {
raimund@875:             return "";
raimund@875:         }
raimund@875:         else {
raimund@875:             return searchfield.getValueAsString();
raimund@875:         }
raimund@863:     }
raimund@863: 
raimund@863: 
raimund@863:     public void addFilterHandler(FilterHandler handler) {
raimund@863:         if (handler != null) {
raimund@863:             handlers.add(handler);
raimund@863:         }
raimund@863:     }
raimund@863: 
raimund@863: 
raimund@863:     protected void fireFilterCriteriaChanged(String searchstring) {
raimund@863:         StringFilterEvent filter = new StringFilterEvent(searchstring);
raimund@863: 
raimund@863:         for (FilterHandler handler: handlers) {
raimund@863:             handler.onFilterCriteriaChanged(filter);
raimund@863:         }
raimund@863:     }
raimund@893: 
raimund@893: 
raimund@893:     public void clear() {
raimund@893:         searchfield.clearValue();
raimund@893:         fireFilterCriteriaChanged("");
raimund@893:     }
raimund@863: }
raimund@863: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :