目标

在这里插入图片描述
如上图所示，现在的导肮栏视图中有视图菜单和一些工具菜单，本文将讲述如何去掉这些菜单和工具菜单。

分析

这些视图菜单和工具菜单其实是视图菜单的扩展，是CNF框架自动默认构建的，有两种方法可以优化，一、使用CNF提供的配置选项进行配置；二、在导航视图实现类中修改视图菜单和工具菜单功能。

实现

一、CNF 实现

CNF导航视图扩展点org.eclipse.ui.navigator.viewer提供了options标签，用于配置默认导航视图菜单是否显示。其扩展点文档描述如下：

<extension
         point="org.eclipse.ui.navigator.viewer">
     <viewer
            popupMenuId="org.eclipse.ui.tests.navigator.TestView#PopupMenu"
            viewerId="org.eclipse.ui.tests.navigator.TestView">
         <options> 
            <!-- Hide the "Available Extensions" tab in the "Filters and Customization" 
                 dialog (available from the "Filters" action -->
            <property
                  name="org.eclipse.ui.navigator.hideAvailableExtensionsTab"
                  value="true"/>
            <!-- Hide the "Filters and Customization" dialog completely. This includes hiding the 
              filters and the available content extensions. -->
            <property
                  name="org.eclipse.ui.navigator.hideAvailableCustomizationsDialog"
                  value="true"/> 
            <!-- Hide the "Link with Editor" action from the toolbar of the viewer -->
            <property
                  name="org.eclipse.ui.navigator.hideLinkWithEditorAction"
                  value="true"/> 
            <!-- Hide the "Collapse All" action from the toolbar of the viewer -->
            <property
                  name="org.eclipse.ui.navigator.hideCollapseAllAction"
                  value="true"/>  
         </options>
      </viewer>
   </extension>

使用这种方式配置很简单，只要粘贴相关代码即可。配置后的plugin.xml信息为：

   <extension
         point="org.eclipse.ui.navigator.viewer">
      <viewer viewerId="com.xzbd.views.MainNavigator">
      	<!-- 省略 …… -->
        <options> 
            <!-- Hide the "Available Extensions" tab in the "Filters and Customization" 
                 dialog (available from the "Filters" action -->
            <property
                  name="org.eclipse.ui.navigator.hideAvailableExtensionsTab"
                  value="true"/>
            <!-- Hide the "Filters and Customization" dialog completely. This includes hiding the 
              filters and the available content extensions. -->
            <property
                  name="org.eclipse.ui.navigator.hideAvailableCustomizationsDialog"
                  value="true"/> 
            <!-- Hide the "Link with Editor" action from the toolbar of the viewer -->
            <property
                  name="org.eclipse.ui.navigator.hideLinkWithEditorAction"
                  value="true"/> 
            <!-- Hide the "Collapse All" action from the toolbar of the viewer -->
            <property
                  name="org.eclipse.ui.navigator.hideCollapseAllAction"
                  value="true"/>  
         </options>
        
      </viewer>

此时导航栏视图所有菜单都被隐藏了，如下图所示
在这里插入图片描述

二、自定义视图菜单

方法一只能控制CNF提供的视图菜单，无法扩展。因此方法二相较于方法一更加灵活。
扩展后的导航视图实现类

package com.xzbd.navigator;

import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.IViewSite;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.navigator.CommonNavigator;

import com.xzbd.actions.NavMenuAction01;
import com.xzbd.actions.NavMenuAction02;
import com.xzbd.actions.NavMenuAction03;

public class MainNavigator extends CommonNavigator {
	public static final String ID = "com.xzbd.views.MainNavigator";
	
	
	@Override
	public void createPartControl(Composite aParent) {
		super.createPartControl(aParent);
		addMenus();
	}

	@Override
	public void init(IViewSite site) throws PartInitException {
		super.init(site);
		
//		addMenus();
	}
	
	/**
	 * 添加菜单
	 */
	private void addMenus() {
		IActionBars actionBars = getViewSite().getActionBars();
		IMenuManager menuManager = actionBars.getMenuManager();
		IToolBarManager toolBarManager = actionBars.getToolBarManager();
		
		// 添加在工具条
		toolBarManager.add(new NavMenuAction01());
		toolBarManager.add(new NavMenuAction02());
		
		// 添加在菜单中
		menuManager.add(new NavMenuAction01());
		menuManager.add(new NavMenuAction02());
		menuManager.add(new NavMenuAction03());
		
	}
}

添加菜单可以重写createPartControl和init，建议在createPartControl中重写。重写后的类中使用到的NavMenuAction01、NavMenuAction02、NavMenuAction03，代码比较简单，详见项目epx，NavMenuAction01示例如下：

package com.xzbd.actions;

import org.eclipse.jface.action.Action;

import com.xzbd.advisor.AppActivator;
import com.xzbd.utils.AppPrinter;

public class NavMenuAction01 extends Action{
	public static final String ID = NavMenuAction01.class.getSimpleName();
	public static final String TEXT = "刷粉";
	
	
	public NavMenuAction01() {
		setText(TEXT);
		setToolTipText(TEXT);
		setImageDescriptor(AppActivator.getImageDescriptor("icons/20220417/zhangfenrenwu.png"));
	}
	
	@Override
	public void run() {
		AppPrinter.println("我是导航菜单，我的任务是刷粉……");
	}
	
}