插件，编译单元

Question

I'm making some plugin, for popup menu to appear only if .java file that contains class is selected. My problem is, when I select .java file menu appears, but also when I select class within .java file (IType), menu also appears. I want it only to appear when .java file is selected (Compilation unit)

Example: .

My xml code: `

<menuContribution
        allPopups="true"
   locationURI="popup:org.eclipse.ui.navigator.ProjectExplorer#PopupMenu?after=additions"
        >
     <menu
           id="org.plugin.generate_test.handlers.menus.popupTestMenu2"
           label="Generate"
           mnemonic="P2">
        <command
              commandId="org.plugin.generate_test.handlers.commands.generateCommand"
              id="org.plugin.generate_test.handlers.menus.generateCommand"
              mnemonic="PC2"
              style="push">
           <visibleWhen
                 checkEnabled="false">
              <with
                    variable="activeMenuSelection">
                 <iterate
                       ifEmpty="false">
                    <adapt
                          type="org.eclipse.core.resources.IResource">
                       <test
                             property="org.eclipse.core.resources.extension"
                             value="java">
                       </test>
                    </adapt>
                 </iterate>
              </with>
           </visibleWhen>
        </command>
     </menu>
  </menuContribution>`

Answer 1

尝试用ICompilationUnit的测试替换<adapt ：

<instanceof value="org.eclipse.jdt.core.ICompilationUnit"/>