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Core Expression: activeEditor adapts to ITextEditor [message #511075]

Fri, 29 January 2010 17:26

Eclipse User

Friend

Originally posted by: thorsten.vitt.uni-wuerzburg.de

Hi,

I am trying to enable a handler if the active editor adapts to
ITextEditor. I'm using this expression:

<activeWhen>
<with
variable="activeEditor">
<adapt
type="org.eclipse.ui.texteditor.ITextEditor">
</adapt>
</with>
</activeWhen>

This works fine for editors that actually implement ITextEditor.

However, the handler remains inactive for MultiPageEditorParts that have
an ITextEditor as a child, although programmatically calling
getAdapter(ITextEditor.class) on them works fine (there's code in
MultiPageEditorPart.getAdapter() that cares for that).

What am I doing wrong?

Thanks for any help,

Thorsten

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Re: Core Expression: activeEditor adapts to ITextEditor [message #511089 is a reply to message #511075]

Fri, 29 January 2010 18:23

Paul Webster is currently offline

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Messages: 6859
Registered: July 2009
Location: Ottawa

Senior Member

paulweb515@gmail.com

CoreExpressions only has access to the IAdapterManager (because it can't
see contributed bundles). Something has to register the MPEP so it can
be adapted by the IAdapterManager to the ITextEditor.

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/galileo/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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