/**
* Returns the first checked radio button with the specified name. If none of the radio buttons by
* that name are checked, this method returns <tt>null</tt>.
*
* @param name the name of the radio button
* @return the first checked radio button with the specified name
*/
public HtmlRadioButtonInput getCheckedRadioButton(final String name) {
WebAssert.notNull("name", name);
for (final HtmlRadioButtonInput input : getRadioButtonsByName(name)) {
if (input.isChecked()) {
return input;
}
}
return null;
}
/**
* Selects the specified radio button in the form. Only a radio button that is actually contained
* in the form can be selected.
*
* @param radioButtonInput the radio button to select
*/
void setCheckedRadioButton(final HtmlRadioButtonInput radioButtonInput) {
if (!isAncestorOf(radioButtonInput) && !lostChildren_.contains(radioButtonInput)) {
throw new IllegalArgumentException("HtmlRadioButtonInput is not child of this HtmlForm");
}
final List<HtmlRadioButtonInput> radios =
getRadioButtonsByName(radioButtonInput.getNameAttribute());
for (final HtmlRadioButtonInput input : radios) {
if (input == radioButtonInput) {
input.setAttribute("checked", "checked");
} else {
input.removeAttribute("checked");
}
}
}
