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Undoable Operation Not Working [message #331068]

Fri, 22 August 2008 19:45

Philippe Sabourin is currently offline

Philippe Sabourin

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Messages: 28
Registered: July 2009

Junior Member

I've made an operation that extends AbstractOperation then executed it
like so:

Operation o = new Operation();

o.addContext(Workbench.getInstance().getOperationSupport().g etUndoContext());

Workbench.getInstance().getOperationSupport().getOperationHi story().execute(o,
monitor, null);

This doesn't seem to add it into the Undo chain, as the undo action icon
doesn't become enabled after I perform the operation.

Is there something wrong with this approach? Is the proper way detailed
somewhere in a tutorial? I have looked at the eclipse help on Undoable
Operations but it seems that I have done everything that's in there.

Thanks,
Philippe

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Re: Undoable Operation Not Working [message #331230 is a reply to message #331068]

Thu, 28 August 2008 14:40

Paul Webster is currently offline

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Messages: 6859
Registered: July 2009
Location: Ottawa

Senior Member

paulweb515@gmail.com

Philippe Sabourin wrote:
> This doesn't seem to add it into the Undo chain, as the undo action icon
> doesn't become enabled after I perform the operation.

Are you saying that Undo becomes enabled after the execute(*) call?
That sounds correct, no? You can only undo it after you've executed it
once.

PW

--
Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
http://wiki.eclipse.org/Menu_Contributions
http://wiki.eclipse.org/Menus_Extension_Mapping
http://help.eclipse.org/help33/index.jsp?topic=/org.eclipse. platform.doc.isv/guide/workbench.htm

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

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