HacketDateInput.java

HacketDateInput.java

public class DateInput implements Validatable {

  public interface Display {

    HasValue<Date> getDate();

    void showError(boolean error);

    void clear();

    void setEnabled(boolean enabled);
    
  }

  private Display display;
  private boolean required;

  @Inject
  public DateInput() {

  }

  public void bindDisplay(Display display) {
    this.display = display;
  }

  @SuppressWarnings("deprecation")
  public Date getSelectedDate() {
    if (display.getDate() == null) {
      return null;
    }

    Date date = display.getDate().getValue();
    /**
     * This is a handy way which we are using to handle repeated billing periods
     * when contract is edited manually by the user. This check need to be removed
     * when new version of the application is made.
     */
    if (date != null) {
      date.setHours(12);
    }
    return date;
  }

  public void setRequired(boolean required) {
    this.required = required;
  }

  public boolean isValid() {
    if (display.getDate().getValue() == null && required == true) {
      return false;
    }

    return true;
  }

  public void showError() {
    display.showError(!isValid());
  }

  public void go(HasWidgets parent) {
    parent.add((Widget) display);
  }

  /**
   * Sets the specified date value. Please note that dates with null values aren't being set, which means
   * that if you are having an existing date and you are trying to set null value the value will be the same
   * as was before the invocation.
   *
   * @param date the date to be set
   */
  public void setDate(Date date) {    
    display.getDate().setValue(date);
  }

  public void clear() {
     display.clear();
     display.showError(false);
  }
  
  public void setEnabled(boolean enabled) {
    display.setEnabled(enabled);
  }

}