/**
* Returns a Map with the current state for the specific event if specified.
*
* @param event the current event - possibly <code>null</code>
* @return a Map with the current state
*/
public Map<String, Object> getCurrentState(final Event event) {
final Map<String, Object> map = new HashMap<String, Object>();
final List<IObservableValue> values = new ArrayList<IObservableValue>();
resetMap(map);
if (event.type == SWT.MenuDetect) {
// LogUtils.debug(event, "MenuDetect");
}
try {
myLastBinding = IBindingContext.Factory.getBindingForWidget(event.widget);
if (myLastBinding == null) return map;
map.put(Constants.SOURCES_ACTIVE_CONTEXT, myLastBinding.getContext());
final ISourceProviderStateContext context =
new ISourceProviderStateContext() {
@Override
public Event getEvent() {
return event;
}
private Point myLocation = null;
@Override
public Point getLocation() {
if (myLocation == null) {
myLocation = new Point(event.x, event.y);
switch (event.type) {
case SWT.MenuDetect:
/*
* The location is relative to the display
*/
myLocation =
event.widget.getDisplay().map(null, (Control) event.widget, myLocation);
break;
default:
break;
}
}
return myLocation;
}
@Override
public Map<String, Object> getState() {
return map;
}
@Override
public void putSourceValue(String name, Object value) {
map.put(name, value);
}
@Override
public void addObservedValue(IObservableValue value) {
values.add(value);
}
@Override
public void setSelectionProvider(ISelectionProvider provider) {
if (provider == myCurrentSelectionProvider) return;
if (myCurrentSelectionProvider != null) {
myCurrentSelectionProvider.removeSelectionChangedListener(
myCurrentSelectionProviderListener);
}
myCurrentSelectionProvider = provider;
if (myCurrentSelectionProvider != null) {
myCurrentSelectionProvider.addSelectionChangedListener(
myCurrentSelectionProviderListener);
}
}
};
try {
myLastBinding.updateSourceProviderState(context);
} catch (final Exception ex) {
LogUtils.error(myLastBinding, ex);
}
/*
* If the active binding is a value binding, run all extenders as well...
*/
final Object activeBinding = map.get(Constants.SOURCES_ACTIVE_BINDING);
if (activeBinding instanceof IValueBinding) {
final IValueBinding vb = (IValueBinding) activeBinding;
for (final IUIBindingDecoratorExtenderDescriptor d :
IManager.Factory.getManager().getDecoratorExtenders()) {
final CEObjectHolder<IUIBindingDecoratorExtender> factory = d.getFactory();
final IUIBindingDecoratorExtender extender = factory.getObject();
if (extender == null) {
LogUtils.error(factory.getConfigurationElement(), "Cannot create extender");
continue;
}
try {
if (!extender.isEnabled(vb)) {
continue;
}
extender.updateSourceProviderState(vb, context);
} catch (final Exception ex) {
LogUtils.error(factory.getConfigurationElement(), ex);
}
}
}
observe(event, values);
} catch (final Exception ex) {
LogUtils.error(this, ex);
}
return map;
}
