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Overriding standard commands [message #1736467]

Wed, 29 June 2016 14:51

Karthika Nair

Messages: 3
Registered: June 2016

Junior Member

Hello there.

I'm writing a plugin for eclipse wherein I would like to override the existing Build Project command and replace it with my own handler. To increase the priority of my handler over the default handler for the run command, I've used the activewhen restriction like so:


<extension
       point="org.eclipse.ui.handlers">
    <handler
          class="%%myHandler"
          commandId="org.eclipse.ui.project.buildProject">
       <activeWhen>
               <with variable="activePartId">
         <equals value="%%myActiveViewId"/>
    	 </with>
               </activeWhen>
         </handler>
</extension>

I've used Alt+Shift+F1,( the spy) to verify that my view is active while using the command.

This is where the command has been declared:



  <extension
         point="org.eclipse.ui.commands">
      <command
            categoryId="org.eclipse.ui.category.project"
            id="org.eclipse.ui.project.buildProject"
            name="Build Project">
      </command>
</extension>

I've also extended org.eclipse.ui.startup to write a startup class to keep lazy loading at bay.
However, on execution, the default handler is still the one that is being executed. What am I doing wrong?
I've been trying to override the run command too,using the same template. However, that attempt also has been futile.(probably due to the same mistake I've made there).

stackoverflow.com/questions/28132938/eclipse-plugin-overriding-standard-command-handler

Can this source be trusted? Is that still the case?
Thanks.

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Re: Overriding standard commands [message #1741015 is a reply to message #1736467]

Mon, 22 August 2016 11:32

Mickael Istria

Messages: 865
Registered: July 2009
Location: Grenoble, France

Senior Member

Choosing the right handler is the responsibility of the Platform and there isn't a way to enforce a handler over another in case of multiple ones active at the same time. However, you can contribute builders or listeners to the necessary projects if you want to add steps in the build phase.
The SO question has no answer, so there is nothing to trust in it.

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