@Override
public void update(Delta<VisualItem> delta, LightweightCollection<Slot> updatedSlots) {
// TODO pull up
if (!timelineWidget.isAttached()) {
return;
}
LightweightCollection<VisualItem> addedVisualItems = delta.getAddedElements();
if (!addedVisualItems.isEmpty()) {
createTimeLineItems(addedVisualItems);
addEventsToTimeline(addedVisualItems);
updateStatusStyling(addedVisualItems);
}
LightweightCollection<VisualItem> updatedVisualItems = delta.getUpdatedElements();
if (!updatedVisualItems.isEmpty()) {
updateStatusStyling(updatedVisualItems);
}
LightweightCollection<VisualItem> removedVisualItems = delta.getRemovedElements();
if (!removedVisualItems.isEmpty()) {
removeEventsFromTimeline(removedVisualItems);
}
// TODO refactor
if (!updatedSlots.isEmpty()) {
for (VisualItem visualItem : getVisualItems()) {
TimeLineItem timelineItem = (TimeLineItem) visualItem.getDisplayObject();
for (Slot slot : updatedSlots) {
if (slot.equals(BORDER_COLOR)) {
timelineItem.updateBorderColor();
} else if (slot.equals(COLOR)) {
timelineItem.updateColor();
}
}
}
}
}
private VisualItemValueResolver getSlotResolver(
DataTypeLists<String> propertiesByDataType, Slot slot) {
DataType dataType = slot.getDataType();
LightweightList<String> properties = propertiesByDataType.get(dataType);
// fallback to default values if there are no corresponding slots
if (properties.isEmpty()) {
return getFixedResolver(dataType);
}
assert !properties.isEmpty();
// dynamic resolution
String firstProperty = properties.get(0);
if (!propertyResolverFactories.containsKey(dataType)) {
throw new UnableToInitializeSlotException(slot);
}
return createPropertyResolver(dataType, firstProperty);
}