RCP定制自己的搜索插件-实例

本文介绍如何扩展/定制 Eclipse 的搜索插件 org.eclipse.search（后面附实例）

 

资源查找是 Eclipse 的一个重要功能。可是，当我们做RCP开发时，Eclipse 搜索功能不一定适合个性化的需求，这是我们就需要扩展 Eclipse 的搜索插件 org.eclipse.search。

 

这里以Spring IDE Bean Search为例，介绍应扩展之处和其中的关键点。搜索页的类名为BeanSearchPage, 搜索结果页的类名为BeanSearchResultPage

 

1. 菜单加入显示搜索页（这是入口）

方法一：在org.eclipse.search.menu/dialogGroup中加一个action，以在java\file search 的旁边加一 Tab , 显示你的搜索页 MyBeanSearchPage。

方法二：菜单加入高级查找和替换。如图

 

2. 扩展org.eclipse.search.searchPages，定制自己的搜索页 MyBeanSearchPage

 

public class MyBeanSearchPage extends DialogPage implements ISearchPage
{
    private Text txtDirectory;

    private ISearchPageContainer fContainer;

    private Text txtPath;

    public MyBeanSearchPage()
    {
    }

    @Override
    public void createControl(Composite parent)
    {
        initializeDialogUnits(parent);

        Composite composite = new Composite(parent, SWT.NONE);
        composite.setFont(parent.getFont());
        GridLayout gridLayout = new GridLayout(3, false);
        composite.setLayout(gridLayout);

        Label lblNewLabel = new Label(composite, SWT.NONE);
        lblNewLabel.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false,
                false, 1, 1));
        lblNewLabel.setText("搜索关键字");

        txtDirectory = new Text(composite, SWT.BORDER);
        txtDirectory.setText("directory");
        txtDirectory.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true,
                false, 1, 1));
        setControl(composite);
        new Label(composite, SWT.NONE);

        Label lblNewLabel_1 = new Label(composite, SWT.NONE);
        lblNewLabel_1.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false,
                false, 1, 1));
        lblNewLabel_1.setText("目录路径");

        txtPath = new Text(composite, SWT.BORDER);
        txtPath.setText("E:\\yucheng\\bsp\\trunk\\runtime-BankITIDE.product\\HelloBSP\\HelloWorld\\HelloCommu\\Hello\\input\\pcs");
        txtPath.setEditable(false);
        txtPath.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false,
                1, 1));

        Button btnNewButton = new Button(composite, SWT.NONE);
        btnNewButton.addSelectionListener(new SelectionAdapter()
        {
            @Override
            public void widgetSelected(SelectionEvent e)
            {
                DirectoryDialog directoryDialog = new DirectoryDialog(
                        getShell());
                directoryDialog.setText("选择目录路径");
                String directoryPath = directoryDialog.open();
                txtPath.setText(directoryPath);
            }
        });
        btnNewButton.setText("选择目录路径");
    }

    @Override
    public boolean performAction()
    {
        NewSearchUI.activateSearchResultView();
        MyBeanSearchQuery myBeanSearchQuery = new MyBeanSearchQuery();
        myBeanSearchQuery.setKeyword(txtDirectory.getText());
        myBeanSearchQuery.setDirectoryPath(txtPath.getText());
        NewSearchUI.runQueryInBackground(myBeanSearchQuery);
        return true;
    }

    @Override
    public void setContainer(ISearchPageContainer container)
    {
        fContainer = container;
    }

}

 

 

 

3. 扩展org.eclipse.search.searchResultViewPages，定制自己的搜索结果页BeanSearchResultPage

public class MySearchResultPage extends AbstractTextSearchViewPage
{
    private MyFileTreeContentProvider fContentProvider;

    @Override
    protected void elementsChanged(Object[] objects)
    {
        if (fContentProvider != null)
        {
            fContentProvider.elementsChanged(objects);
        }
    }

    @Override
    protected void clear()
    {
        if (fContentProvider != null)
            fContentProvider.clear();
    }

    @Override
    protected void configureTreeViewer(TreeViewer viewer)
    {
        viewer.setUseHashlookup(true);
        MyFileLabelProvider myFileLabelProvider = new MyFileLabelProvider();
        viewer.setLabelProvider(myFileLabelProvider);
        viewer.setContentProvider(new MyFileTreeContentProvider(viewer));
        fContentProvider = (MyFileTreeContentProvider) viewer
                .getContentProvider();
        this.setElementLimit(50);
    }

    @Override
    protected void configureTableViewer(TableViewer viewer)
    {
        // TODO Auto-generated method stub

    }

}

  

2和3的扩展点

 

 

4. 此外，还用到的相关接口，详见附件的插件工程

 

ISearchQuery.java，搜索的入口

Match.java，结果集

NewSearchUI.java，UI启动类

 

5. 运行

搜索输入界面

 

搜索结果显示界面

  

 

6. 附件是一个简单的示例。