exitaction.java

eclipse rcp 项目实例

package com.niis.myprice.action;

import org.eclipse.jface.action.Action;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.actions.ActionFactory;

import com.niis.myprice.domain.DataTree;
import com.niis.myprice.util.message.Messages;

public class ExitAction extends Action {
	private final IWorkbenchWindow window;
	private int instanceNum = 0;
	
	public ExitAction(IWorkbenchWindow window, String label) {
		this.window = window;
        setText(label);
        // The id is used to refer to the action in a menu or toolbar
		setId(ICommandIds.CMD_EXIT);
        // Associate the action with a pre-defined command, to allow key bindings.
		setActionDefinitionId(ICommandIds.CMD_EXIT);
//		setImageDescriptor(tt.Activator.getImageDescriptor("/icons/sample2.gif"));
	}
	
	public void run() {
		if (DataTree.getDt().isModified()) {
			Shell shell = window.getShell();
			String title = Messages.getString("common.promptmessage");
			String msg =Messages.getString("ApplicationWorkbenchWindowAdvisor.prompt");
			MessageDialog dialog = new MessageDialog(shell, title, null, // accept
		                msg, MessageDialog.QUESTION, new String[] { IDialogConstants.YES_LABEL,
		                        IDialogConstants.NO_LABEL,IDialogConstants.CANCEL_LABEL }, 0); // yes is the default
		    int result = dialog.open();
			switch(result){
			case 0://yes
				DataTree.getDt().save();
				break;
			case 1://no
				break;
			case 2://cancel
				return;
			default:break;
			}  
		}
		ActionFactory.QUIT.create(window).run();
	}
}