如何在 Eclipse RCP 中使编辑器变脏

Question

`public class ApplicationActionBarAdvisor extends ActionBarAdvisor {

    private IWorkbenchAction saveAction;
    private IWorkbenchAction saveAllAction;

    // Actions - important to allocate these only in makeActions, and then use
    // them
    // in the fill methods. This ensures that the actions aren't recreated
    // when fillActionBars is called with FILL_PROXY.

    public ApplicationActionBarAdvisor(IActionBarConfigurer configurer) {
        super(configurer);
    }
     protected void makeActions(final IWorkbenchWindow window) {
         saveAction = ActionFactory.SAVE.create(window);
        register(saveAction);

        saveAllAction = ActionFactory.SAVE_ALL.create(window);
        register(saveAllAction);
        }

//      protected void fillMenuBar(IMenuManager menuBar) {
//      }

        protected void fillCoolBar(ICoolBarManager coolBar) {
            IToolBarManager saveToolbar = new ToolBarManager(SWT.FLAT | SWT.RIGHT);
            saveToolbar.add(saveAction);
            saveToolbar.add(saveAllAction);
            coolBar.add(new ToolBarContributionItem(saveToolbar, "save"));
        }

package rcp_application;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.handlers.HandlerUtil;

public class CallEditor extends AbstractHandler {

    @Override
    public Object execute(ExecutionEvent event) throws ExecutionException {

        IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindow(event);
        IWorkbenchPage page = window.getActivePage();
        BottomView view = (BottomView)page.findView(BottomView.ID);

        ISelection selection = view.getSite().getSelectionProvider()
                .getSelection();

        if (selection != null && selection instanceof IStructuredSelection) {
            Object obj = ((IStructuredSelection) selection).getFirstElement();
            if (obj != null) {
                Person person = (Person) obj;
                MyEditorInput input = new MyEditorInput(person);
                try {
                  page.openEditor(input, MyEditor.ID);

                } catch (PartInitException e) {
                  throw new RuntimeException(e);
                }
              }
            }
        return null;
    }

}`

我已经尝试了很多方法来使 RCP 中的编辑器变脏，但没有奏效。我正在为我的编辑器实现 IEditorPart。当我编辑编辑器的内容时​​，它不会被标记为脏，并且保存按钮保持禁用状态。但是当我点击查看时，保存变为活动状态。我正在调用 firePropertyChange() 但是当我调试我的程序并进入 firePropertyChange() 时，侦听器列表发现为空。谁有解决方案，请分享。谢谢。

Answer 1

打电话

firePropertyChange(PROP_DIRTY);

将编辑器部分标记为脏。

您的编辑器的isDirty() 方法将在各个点被调用以检查脏状态。