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Editorial Team
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Asked: 2026-06-15T21:53:48+00:00

The issue is this: Most things I read on the web says that we

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The issue is this: Most things I read on the web says that we should avoid actions when creating popup menus because the command framework allows for more decoupling.

Example: http://wiki.eclipse.org/FAQ_What_is_the_difference_between_a_command_and_an_action%3F

Fair enough.

But I am having a heck of a time getting the command framework to add my menu when I right click on a .java file inside the editor, and only when I click inside the editor. I can get the menu to show (using ‘with’ and the activeEditor variable), but it also shows when I right click on the java file inside the package explorer, which I don’t want. I suspect it’s because the file is already open inside the editor.

I also have a menu that gets added when I right click on the java file inside the package explorer, using IComplilationUnit. That works fine.

So my problem is solved using a popup menu action for when I click inside the file. I also get access to to all the ISelection stuff there. But the coupling is to high and I lose the flexability of using handlers.

I’m looking for either:
Tell me I’m doing it the only way possible; or
Tell me how to have my popup appear only when I right click on the java file editor.

Regards

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1 Answer

  1. Editorial Team

    In the end it was really straight forward. The example below uses the command framework. It doesn’t have the handlers, so just click the class hyperlink whenever you need a class generated.

    Create a new eclipse plugin project called com.test.plugin.project

    In the dependency tab of the plugin.xml file add the following dependencies

    • org.eclipse.jdt
    • org.eclipse.jdt.core
    • org.eclipse.jdt.ui
    • org.eclipse.jface.text

    Put this in the plugin.xml tab section:

    <?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.4"?>
<plugin>
   <extension
         point="org.eclipse.ui.menus">
      <menuContribution
            allPopups="true"
            locationURI="popup:org.eclipse.ui.popup.any">
         <menu
               label="Test Project Sub Menu">
            <command
                  commandId="com.test.plugin.project.command.packageexplorer"
                  id="packageexplorerId"
                  style="push">
               <visibleWhen
                     checkEnabled="false">
                  <iterate
                        ifEmpty="false"
                        operator="or">
                     <instanceof
                           value="org.eclipse.jdt.internal.core.CompilationUnit">
                     </instanceof>
                  </iterate>
               </visibleWhen>
            </command>
            <command
                  commandId="com.test.plugin.project.command.classfile"
                  id="classfileId"
                  style="push">
               <visibleWhen
                     checkEnabled="false">
                  <iterate
                        ifEmpty="false"
                        operator="or">
                     <and>
                        <with
                              variable="selection">
                           <instanceof
                                 value="org.eclipse.jface.text.TextSelection">
                           </instanceof>
                        </with>
                        <with
                              variable="activeEditorId">
                           <equals
                                 value="org.eclipse.jdt.ui.CompilationUnitEditor">
                           </equals>
                        </with>
                     </and>
                  </iterate>
               </visibleWhen>
            </command>
         </menu>
      </menuContribution>
   </extension>
   <extension
         point="org.eclipse.ui.commands">
      <command
            id="com.test.plugin.project.command.packageexplorer"
            name="Only Show In Package Explorer">
      </command>
      <command
            id="com.test.plugin.project.command.classfile"
            name="Only Show In Class File">
      </command>
   </extension>

</plugin>

    What this does

    • It creates one popup menu in a sub menu when you right click on a java file inside the package explorer (and only when you click on a java file).
    • It create a different popup menu in a sub menu when you right click on a java file.
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