Bug 298326

Description Philipp Kursawe 2009-12-21 12:52:21 EST

I would like to contribute this property tester back to Eclipse. Its usage is explained here: http://philondev.blogspot.com/2009/12/toggle-commands-toggle-other.html


public class CommandsPropertyTester extends PropertyTester {
public static final String NAMESPACE = "org.eclipse.core.commands"; //$NON-NLS-1$
public static final String PROPERTY_BASE = NAMESPACE + '.';
public static final String TOGGLE_PROPERTY_NAME = "toggle"; //$NON-NLS-1$
public static final String TOGGLE_PROPERTY = PROPERTY_BASE + TOGGLE_PROPERTY_NAME;

public boolean test(final Object receiver, final String property, final Object[] args, final Object expectedValue) {
  if (receiver instanceof IServiceLocator && args.length == 1 && args[0] instanceof String) {
    final IServiceLocator locator = (IServiceLocator) receiver;
    if (TOGGLE_PROPERTY_NAME.equals(property)) {
      final String commandId = args[0].toString();
      final ICommandService commandService = (ICommandService)locator.getService(ICommandService.class);
      final Command command = commandService.getCommand(commandId);
      final State state = command.getState(RegistryToggleState.STATE_ID);
      if (state != null) {
        return state.getValue().equals(expectedValue);
      }
    }
  }
  return false;
}
}


<propertytester
class="org.eclipse.core.commands.extender.internal.CommandsPropertyTester"
id="org.eclipse.core.expressions.testers.CommandsPropertyTester"
namespace="org.eclipse.core.commands"
properties="toggle"
type="org.eclipse.ui.services.IServiceLocator"/>