@Override
public void setCaption(VCaption caption) {
VCaption oldCaption = getCaption();
if (oldCaption != null) {
getLayoutManager().unregisterDependency(layout, oldCaption.getElement());
}
super.setCaption(caption);
if (caption != null) {
getLayoutManager()
.registerDependency((ManagedLayout) child.getParent(), caption.getElement());
}
}
/** Update caption for given widget */
public void updateCaption(ComponentConnector paintable) {
Widget widget = paintable.getWidget();
VCaptionWrapper wrapper = childWidgetToCaptionWrapper.get(widget);
if (VCaption.isNeeded(paintable.getState())) {
if (wrapper == null) {
// Add a wrapper between the layout and the child widget
final String loc = getLocation(widget);
super.remove(widget);
wrapper = new VCaptionWrapper(paintable, client);
super.add(wrapper, locationToElement.get(loc));
childWidgetToCaptionWrapper.put(widget, wrapper);
}
wrapper.updateCaption();
} else {
if (wrapper != null) {
// Remove the wrapper and add the widget directly to the layout
final String loc = getLocation(widget);
super.remove(wrapper);
super.add(widget, locationToElement.get(loc));
childWidgetToCaptionWrapper.remove(widget);
}
}
}
@Override
public void onStateChanged(StateChangeEvent stateChangeEvent) {
super.onStateChanged(stateChangeEvent);
getWidget().disableOnClick = getState().disableOnClick;
focusHandlerRegistration = EventHelper.updateFocusHandler(this, focusHandlerRegistration);
blurHandlerRegistration = EventHelper.updateBlurHandler(this, blurHandlerRegistration);
// Set text
VCaption.setCaptionText(getWidget(), getState());
// handle error
if (null != getState().errorMessage) {
if (getWidget().errorIndicatorElement == null) {
getWidget().errorIndicatorElement = DOM.createSpan();
getWidget().errorIndicatorElement.setClassName("v-errorindicator");
}
getWidget()
.getElement()
.insertBefore(getWidget().errorIndicatorElement, getWidget().captionElement);
} else if (getWidget().errorIndicatorElement != null) {
getWidget().getElement().removeChild(getWidget().errorIndicatorElement);
getWidget().errorIndicatorElement = null;
}
if (getWidget().icon != null) {
getWidget().getElement().removeChild(getWidget().icon.getElement());
getWidget().icon = null;
}
Icon icon = getIcon();
if (icon != null) {
getWidget().icon = icon;
getWidget().getElement().insertBefore(icon.getElement(), getWidget().captionElement);
icon.setAlternateText(getState().iconAltText);
}
}
@Override
protected int getCaptionWidth() {
VCaption caption = getCaption();
return caption != null ? getLayoutManager().getOuterWidth(caption.getElement()) : 0;
}
