LauncherBasedAction.java

package krasa.visualvm.action;

import javax.swing.*;

import com.intellij.execution.process.ProcessHandler;
import com.intellij.execution.runners.ProcessProxyFactory;
import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.Presentation;

public abstract class LauncherBasedAction extends AnAction {
	protected final ProcessHandler myProcessHandler;

	LauncherBasedAction(String text, String description, Icon icon, ProcessHandler processHandler) {
		super(text, description, icon);
		myProcessHandler = processHandler;
	}

	@Override
	public void update(final AnActionEvent event) {
		final Presentation presentation = event.getPresentation();
		if (!isVisible()) {
			presentation.setVisible(false);
			presentation.setEnabled(false);
			return;
		}
		presentation.setVisible(true);
		presentation.setEnabled(!myProcessHandler.isProcessTerminated());
	}

	protected boolean isVisible() {
		return ProcessProxyFactory.getInstance().getAttachedProxy(myProcessHandler) != null;
	}
}