Eclipse Community Forums: Eclipse Platform » Enable handler based on active page in multi-page editor

Help

Home

Home » Eclipse Projects » Eclipse Platform » Enable handler based on active page in multi-page editor

Show: Today's Messages :: Show Polls :: Message Navigator

Enable handler based on active page in multi-page editor [message #773109]

Sat, 31 December 2011 14:08

Timothy Vogel

Messages: 82
Registered: July 2009

Member

Does anyone have an example of enabling a command handler based on the active page of a multi-page editor?

I can enable based on the overall editor via activeEditorId but can't figure out a way to discriminate between pages of the editor. I have tried activePartId in an expression as below, where each <value> in the <or> is a section or page that I want the handler enabled. The handler is still always inactive.

Thanks for reading my question and any help you can provide!

      <definition
            id="rewindPageActive">
         <with
               variable="activePartId">
            <or>
               <equals
                     value="editor.RedesignWireSection">
               </equals>
               <equals
                     value="editor.RedesignWindingSection">
               </equals>
               <equals
                     value="editor.RedesignElectricalSection">
               </equals>
               <equals
                     value="editor.RedesignDensitiesSection">
               </equals>
               <equals
                     value="editor.RedesignCoilsSection">
               </equals>
               <equals
                     value="editor.RedesignCircMilSection">
               </equals>
               <equals
                     value="editor.RewindMotor">
               </equals></or>
         </with>
      </definition>

Report message to a moderator

Re: Enable handler based on active page in multi-page editor [message #774732 is a reply to message #773109]

Wed, 04 January 2012 13:52

Paul Webster

Messages: 6859
Registered: July 2009
Location: Ottawa

Senior Member

The inner editors in a MultiPageEditorPart are not visible to the workbench, only the outer editor and its activeEditorId. You can write a property tester to test the active page in your MPEP, and you can use a page change listener and methods like org.eclipse.ui.services.IEvaluationService.requestEvaluation(String) to notify of a page change so it can be re-evaluated.

PW

Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
http://wiki.eclipse.org/Menu_Contributions

Report message to a moderator