Bug 204458 [Commands] Allow menu and toolbars to fire execution events
Keybindings will currently fire execution events when executing actions from the action framework. i.e. IActions with their actionDefinitionId set and IActionDelegates with the definitionId attribute in their action contributions. But it would be nice if selecting the menu or tool item would also fire the equivalent events. PW
bundles/org.eclipse.jface/src/org/eclipse/jface/action/ActionContributionItem.java
public boolean isEnabled() {
		return action != null && action.isEnabled();
	}
	/**
	 * Returns <code>true</code> if this item is allowed to enable,
	 * <code>false</code> otherwise.
	 * 
	 * @return if this item is allowed to be enabled
	 * @since 2.0
	 */
	protected boolean isEnabledAllowed() {
		if (getParent() == null) {
			return true;
		}
		Boolean value = getParent().getOverrides().getEnabled(this);
		return (value == null) ? true : value.booleanValue();
	}
	/**
	 * The <code>ActionContributionItem</code> implementation of this
	 * <code>ContributionItem</code> method extends the super implementation
	 * by also checking whether the command corresponding to this action is
	 * active.
	 */
	public boolean isVisible() {
		return super.isVisible() && isCommandActive();
	}
	/**
	 * Sets the presentation mode, which is the bitwise-or of the
	 * <code>MODE_*</code> constants.
	 *