SingleControlGroup.java

package lt.inventi.wicket.component.bootstrap.form;

import org.apache.wicket.Component;
import org.apache.wicket.markup.IMarkupFragment;
import org.apache.wicket.markup.Markup;
import org.apache.wicket.markup.MarkupNotFoundException;
import org.apache.wicket.markup.html.WebMarkupContainer;

/**
 * Adds a bit of magic to bootstrap's horizontal forms.
 * <p>
 * If SingleControlGroup is placed inside of a form you MUST have a localized
 * property with key equal to <code>formId.formComponentId</code>, otherwise
 * with <code>formComponentId</code>.
 * <p>
 * Java:
 *
 * <pre>
 * new SingleControlGroup(new TextField<String>("input"));
 * </pre>
 *
 * HTML:
 *
 * <pre>
 * <input type="text" wicket:id="input" />
 * </pre>
 *
 * Properties:
 *
 * <pre>
 * input = Label
 * </pre>
 *
 * Result:
 *
 * <pre>
 * <div class="control-group">
 *         <label class="control-label">Label</label>
 *
 *         <div class="controls">
 *             <input type="text" name="input:input:input_body:input" value="" />
 *         </div>
 * </div>
 * </pre>
 *
 * @author vplatonov
 *
 */
public class SingleControlGroup extends WebMarkupContainer {

    public SingleControlGroup(Component component) {
        super(component.getId());
        add(new ControlGroup(component.getId()).add(component));
    }

    @Override
    public IMarkupFragment getMarkup() {
        IMarkupFragment markup = super.getMarkup();
        if (markup == null) {
            throw new MarkupNotFoundException("Can not determine Markup. " + toString());
        }
        return Markup.of("<div wicket:id=\"" + getId() + "\">" + markup.toString(true) + "</div>");
    }
}