package org.ovirt.engine.ui.webadmin.uicommon.model;
import org.ovirt.engine.ui.uicommonweb.UICommand;
import org.ovirt.engine.ui.uicommonweb.models.Model;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.ScheduledCommand;
/**
* Used to invoke UiCommon model {@linkplain UICommand commands} as GWT {@linkplain Scheduler#scheduleDeferred deferred
* commands} that execute after the browser event loop returns.
* <p>
* Invoking model commands in a deferred way might be useful when there are other classes processing the model and those
* commands should be executed only after the model has been fully processed.
*/
public class DeferredModelCommandInvoker {
private final Model model;
public DeferredModelCommandInvoker(Model model) {
this.model = model;
}
public void invokeDefaultCommand() {
invokeCommand(model.getDefaultCommand());
}
public void invokeCancelCommand() {
invokeCommand(model.getCancelCommand());
}
void invokeCommand(final UICommand command) {
if (command != null) {
Scheduler.get().scheduleDeferred(new ScheduledCommand() {
@Override
public void execute() {
command.Execute();
}
});
}
}
}