How to use

setVisible

method

in

com.smartgwt.client.widgets.IButton

@Override
public void showForSave(final SaveRequestHandler handler) {
  if (handler != null) {
    addSaveRequestHandler(new OneOffSaveRequestHandler(handler));
  }
  saveBtn.setVisible(true);
  searchBtn.setVisible(false);
  show();
  bringToFront();
  saveBtn.select();
  saveBtn.focus();
}

@Override
public void showForSearch() {
  saveBtn.setVisible(false);
  searchBtn.setVisible(true);
  if (searchPanel.canFilterLayer()) {
    removeFilterBtn.setVisible(CriterionUtil.isFilterActive());
    removeFilterBtn.setDisabled(!CriterionUtil.isFilterActive());
  }
  show();
  bringToFront();
  searchBtn.select();
  searchBtn.focus();
}

private void updateState() {
  if (currentStep.isLastStep()) {
    if (!save.isVisible()) {
      next.setVisible(false);
      save.setVisible(true);
    }
    save.setDisabled(!currentStep.isValid());
    prev.setDisabled((currentStep.getPreviousStep() == null));
  } else {
    if (!next.isVisible()) {
      save.setVisible(false);
      next.setVisible(true);
    }
    next.setDisabled(!(currentStep.isValid() && currentStep.getNextStep() != null));
  }
  prev.setDisabled((currentStep.getPreviousStep() == null));
}

public void setLayerModel(LayerModelDto lmd) {
  this.lmd = lmd;
  openStyleEditor.setVisible((lmd.getLayerConfiguration() instanceof DynamicVectorLayerConfiguration));
  openStyleEditor.setDisabled(true);
  if (styleHelper != null) {
    styleHelper.destroy();
    styleHelper = null;
  }
  fireChangedHandler();
}

void onFilterLayer() {
  if (searchPanel.validate()) {
    Criterion critter = searchPanel.getFeatureSearchCriterion();
    MapWidget map = searchPanel.getMapWidget();
    CriterionUtil.clearLayerFilters(map);
    CriterionUtil.setLayerFilter(map, critter);
    setVectorLayerOnWhichSearchIsHappeningVisible();
    removeFilterBtn.setVisible(true);
    removeFilterBtn.setDisabled(false);
  }
}

public DatalayerStyle() {
  super();
  setMargin(5);
  setWidth100();
  SaveButtonBar buttonBar = new SaveButtonBar(this);
  addMember(buttonBar);
  VLayout group = new VLayout();
  group.setPadding(10);
  group.setOverflow(Overflow.AUTO);
  openStyleEditor = new IButton(MESSAGES.layerConfigExpertEditorBtn());
  openStyleEditor.setIcon(WidgetLayout.iconEdit);
  openStyleEditor.setAutoFit(true);
  openStyleEditor.setVisible(false);
  openStyleEditor.setDisabled(true);
  openStyleEditor.addClickHandler(new ClickHandler() {
    public void onClick(ClickEvent event) {
      if (styleHelper != null) {
        styleHelper.showExpertStyleEditor();
      }
    }
  });
  group.addMember(openStyleEditor);
  addMember(group);
}

saveBtn.setVisible(false);
IButton cancelBtn = new IButton(MESSAGES.searchWidgetCancel());
cancelBtn.setWidth(cancelBtn.getTitle().length() * GsfLayout.buttonFontWidth + GsfLayout.buttonOffset);

save.setIcon(WidgetLayout.iconAdd);
save.setDisabled(true);
save.setVisible(false);
save.addClickHandler(new ClickHandler() {