How to use

getPropertyObject

method

in

com.google.gwt.user.client.Element

@SuppressWarnings("unchecked")
@Override
public T getValue() {
 final String inputType = getElement().getPropertyString("type");
 final Class<?> valueType = getValueClassForInputType(inputType);
 if (Boolean.class.equals(valueType)) {
  return (T) (Boolean) getElement().getPropertyBoolean("checked");
 }
 else if (String.class.equals(valueType)) {
  final Object rawValue = getElement().getPropertyObject("value");
  return (T) (rawValue != null ? rawValue : "");
 }
 else {
  throw new RuntimeException("Unrecognized input element type [" + inputType + "]");
 }
}

@SuppressWarnings("unchecked")
@Override
public T getValue() {
 final String inputType = getElement().getPropertyString("type");
 final Class<?> valueType = getValueClassForInputType(inputType);
 if (Boolean.class.equals(valueType)) {
  return (T) (Boolean) getElement().getPropertyBoolean("checked");
 }
 else if (String.class.equals(valueType)) {
  final Object rawValue = getElement().getPropertyObject("value");
  return (T) (rawValue != null ? rawValue : "");
 }
 else {
  throw new RuntimeException("Unrecognized input element type [" + inputType + "]");
 }
}

private static Object getSelectedItem(ListBox list) {
  assert list != null;
  int index = list.getSelectedIndex();
  Object model = list.getElement().getPropertyObject("model");
  if (model instanceof ListBindingManager) {
    ListBindingManager lbm = (ListBindingManager) model;
    if (index != -1) {
      return lbm.getElement(index);
    } else {
      return null;
    }
  } else {
    return index;
  }
}

  public String getButtonText( Object obj )
  {
    for( int i = 0; i < panel.getWidgetCount(); i++ )
    {
      Button b = (Button) panel.getWidget( i );
      if( b.getElement().getPropertyObject( "object" ) == obj )
        return b.getText();
    }

    return null;
  }
}

public void setButtonText( Object obj, String text )
{
  for( int i = 0; i < panel.getWidgetCount(); i++ )
  {
    Button b = (Button) panel.getWidget( i );
    if( b.getElement().getPropertyObject( "object" ) == obj )
      b.setText( text );
  }
}

public void setEnabled( Object obj, boolean fEnabled )
{
  for( int i = 0; i < panel.getWidgetCount(); i++ )
  {
    Button b = (Button) panel.getWidget( i );
    if( b.getElement().getPropertyObject( "object" ) == obj )
      b.setEnabled( fEnabled );
  }
}

public void setButtonText( Object obj, String text )
{
  for( int i = 0; i < panel.getWidgetCount(); i++ )
  {
    Button b = (Button) panel.getWidget( i );
    if( b.getElement().getPropertyObject( "object" ) == obj )
      b.setText( text );
  }
}

  public String getButtonText( Object obj )
  {
    for( int i = 0; i < panel.getWidgetCount(); i++ )
    {
      Button b = (Button) panel.getWidget( i );
      if( b.getElement().getPropertyObject( "object" ) == obj )
        return b.getText();
    }

    return null;
  }
}

public void setEnabled( Object obj, boolean fEnabled )
{
  for( int i = 0; i < panel.getWidgetCount(); i++ )
  {
    Button b = (Button) panel.getWidget( i );
    if( b.getElement().getPropertyObject( "object" ) == obj )
      b.setEnabled( fEnabled );
  }
}

private static void setSelectedItem(ListBox list, Object item) {
  assert list != null;
  Object model = list.getElement().getPropertyObject("model");
  if (model instanceof ListBindingManager) {
    ListBindingManager lbm = (ListBindingManager) model;
    list.setSelectedIndex(getEqualItemIndex(lbm.getElements(), item));
  } else {
    list.setSelectedIndex((Integer) item);
  }
}

public void selectButton( Object obj )
{
  for( int i = 0; i < panel.getWidgetCount(); i++ )
  {
    Button b = (Button) panel.getWidget( i );
    if( b.getElement().getPropertyObject( "object" ) == obj )
      b.addStyleName( "Ribbon-selected" );
    else
      b.removeStyleName( "Ribbon-selected" );
  }
}

private static List<Object> getSelectedItems(ListBox list) {
  assert list != null;
  List<Object> elements = new ArrayList<Object>();
  if (list.getSelectedIndex() == -1) {
    return elements;
  }
  Object model = list.getElement().getPropertyObject("model");
  if (model instanceof ListBindingManager) {
    ListBindingManager lbm = (ListBindingManager) model;
    for (int i = 0, n = list.getItemCount(); i < n; ++i) {
      if (list.isItemSelected(i)) {
        elements.add(lbm.getElement(i));
      }
    }
  } else {
    for (int i = 0, n = list.getItemCount(); i < n; ++i) {
      if (list.isItemSelected(i)) {
        elements.add(i);
      }
    }
  }
  return elements;
}

public void selectButton( Object obj )
{
  for( int i = 0; i < panel.getWidgetCount(); i++ )
  {
    Button b = (Button) panel.getWidget( i );
    if( b.getElement().getPropertyObject( "object" ) == obj )
      b.addStyleName( "Ribbon-selected" );
    else
      b.removeStyleName( "Ribbon-selected" );
  }
}

private static void setSelectedItems(ListBox list, List<Object> indexes) {
  assert list != null;
  Object model = list.getElement().getPropertyObject("model");
  if (model instanceof ListBindingManager) {
    ListBindingManager lbm = (ListBindingManager) model;
    for (Object index : indexes) {
      list.setSelectedIndex(getEqualItemIndex(lbm.getElements(), index));
    }
  } else {
    for (Object index : indexes) {
      list.setItemSelected((Integer) index, true);
    }
  }
}