InputPrompt.java

package pt.ist.vaadinframework.data.hints;

import pt.ist.vaadinframework.data.HintedProperty.Hint;

import com.vaadin.ui.AbstractTextField;
import com.vaadin.ui.Field;
import com.vaadin.ui.PopupDateField;

public class InputPrompt implements Hint {
    private final String inputPrompt;

    public InputPrompt(String inputPrompt) {
        this.inputPrompt = inputPrompt;
    }

    @Override
    public Field applyHint(Field field) {
        if (field instanceof AbstractTextField) {
            ((AbstractTextField) field).setInputPrompt(inputPrompt);
        }
        if (field instanceof PopupDateField) {
            ((PopupDateField) field).setInputPrompt(inputPrompt);
        }
        return field;
    }

    @Override
    public boolean appliesTo(Field field) {
        return field instanceof AbstractTextField || field instanceof PopupDateField;
    }
}