borderPickerPopPanel.setAutoHideEnabled(true);
borderColorPickerMenuItem.setCommand(new Command(){
@Override
public void execute() {
if(borderPickerPopPanel.getWidget() == null){
VkColorPicker vkColorPicker = new VkColorPicker();
borderPickerPopPanel.setWidget(vkColorPicker);
vkColorPicker.addValueChangeHandler(new ValueChangeHandler<VkColorPicker>() {
@Override
public void onValueChange(final ValueChangeEvent<VkColorPicker> event) {
final Element element = invokingElement;
final String finalClassName = className;
final String prior = DOM.getStyleAttribute(invokingElement, "borderColor");