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Enablement of contributed actions [message #333602]

Thu, 18 December 2008 05:17

Eclipse User

Hi

My plugin will contribute actions to toolbars and popup menus. These
actions should only be enabled if there is a file called domain-model.uml
in the project that is selected or indirectly selected trough the selected
resource.

Is it possible to achieve this somehow trough the extension point
mechanism?

Thanks for any answers.

Re: Enablement of contributed actions [message #333622 is a reply to message #333602]

Thu, 18 December 2008 10:34

Eclipse User

If it has to be in a known location, you can check for it relatively
easily. If it can be anywhere in the project, that's too costly to
search for during a visible or enabled check in a menu.

You can do this kinds of checking with actions or action extensions
(like actionSets) and IActionFilter, or with commands/handlers and
enabledWhen (core expressions).

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/ganymede/index.jsp?topic=/org.eclips e.platform.doc.isv/guide/workbench.htm

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