/**
* The Logic Lab
* @author jpk Nov 5, 2007
*/
package com.tll.client.ui.field;
import java.util.Map;
import com.google.gwt.event.dom.client.BlurEvent;
import com.google.gwt.event.dom.client.BlurHandler;
import com.google.gwt.event.dom.client.FocusEvent;
import com.google.gwt.event.dom.client.FocusHandler;
import com.google.gwt.event.dom.client.MouseOutEvent;
import com.google.gwt.event.dom.client.MouseOutHandler;
import com.google.gwt.event.dom.client.MouseOverEvent;
import com.google.gwt.event.dom.client.MouseOverHandler;
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.shared.HandlerRegistration;
import com.google.gwt.user.client.ui.MultiWordSuggestOracle;
import com.google.gwt.user.client.ui.SuggestBox;
import com.google.gwt.user.client.ui.SuggestOracle.Suggestion;
/**
* SuggestField
* @author jpk
*/
public final class SuggestField extends AbstractDataField<String, String> {
/**
* Impl
* @author jpk
*/
final class Impl extends SuggestBox implements IEditable<String> {
/**
* Constructor
*/
public Impl() {
super(new MultiWordSuggestOracle());
addStyleName(Styles.TBOX);
}
@Override
public String getValue() {
final String s = super.getValue();
try {
return getDataValue(s);
}
catch(final IllegalArgumentException e) {
// ok
}
return s;
}
/**
* Resolves the "show" value for the given value. If a corresponding data
* token exists for the given value, it is used as the show value.
* Otherwise, the given value will be the show value.
* @param value the value
* @return the "show" value for the given value.
*/
private String resolveShowValue(final String value) {
final String tkn = getToken(value);
return tkn == null ? value : tkn;
}
@Override
public void setValue(final String newValue) {
super.setValue(resolveShowValue(newValue));
}
@Override
public void setValue(final String value, final boolean fireEvents) {
super.setValue(resolveShowValue(value), fireEvents);
}
MultiWordSuggestOracle getOracle() {
return (MultiWordSuggestOracle) getSuggestOracle();
}
@Override
public HandlerRegistration addFocusHandler(final FocusHandler handler) {
return addDomHandler(handler, FocusEvent.getType());
}
@Override
public HandlerRegistration addBlurHandler(final BlurHandler handler) {
return addDomHandler(handler, BlurEvent.getType());
}
@Override
public HandlerRegistration addMouseOverHandler(final MouseOverHandler handler) {
return addDomHandler(handler, MouseOverEvent.getType());
}
@Override
public HandlerRegistration addMouseOutHandler(final MouseOutHandler handler) {
return addDomHandler(handler, MouseOutEvent.getType());
}
}
private final Impl sb;
/**
* Constructor
* @param name
* @param propName
* @param labelText
* @param helpText
* @param data
*/
SuggestField(final String name, final String propName, final String labelText, final String helpText,
final Map<String, String> data) {
super(name, propName, labelText, helpText);
sb = new Impl();
// fires when suggest box is manually edited
sb.addValueChangeHandler(this);
// fires when, you guessed it, a selection is clicked
sb.addSelectionHandler(new SelectionHandler<Suggestion>() {
@SuppressWarnings("synthetic-access")
@Override
public void onSelection(final SelectionEvent<Suggestion> event) {
ValueChangeEvent.fire(sb, getDataValue(event.getSelectedItem().getReplacementString()));
}
});
sb.addFocusHandler(this);
sb.addBlurHandler(this);
// setConverter(ToStringConverter.INSTANCE);
setData(data);
}
private void buildOracle() {
final MultiWordSuggestOracle oracle = sb.getOracle();
oracle.clear();
final Map<String, String> data = getData();
if(data != null) {
for(final String s : data.values()) {
oracle.add(s);
}
}
}
@Override
public void setEnabled(final boolean enabled) {
sb.getTextBox().setEnabled(enabled);
super.setEnabled(enabled);
}
@Override
public void setData(final Map<String, String> data) {
super.setData(data);
buildOracle();
}
@Override
public void addDataItem(final String name, final String value) {
super.addDataItem(name, value);
sb.getOracle().add(name);
}
@Override
public void removeDataItem(final String value) {
super.removeDataItem(value);
buildOracle();
}
@Override
public String doGetText() {
return sb.getText();
}
@Override
public void setText(final String text) {
sb.setText(text);
}
@Override
public IEditable<String> getEditable() {
return sb;
}
}