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ActionDelegateHandlerProxy and isEnabled [message #541213]

Fri, 18 June 2010 17:31

Mickael Istria

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

Senior Member

Hi all,

I am trying to get my menu entries activated at the right time, but I am a bit confused with the ActionDelegateHandlerProxy. Indeed, I have a pop-up menu that defines an action for Copy, and this action is bound to the org.eclipse.ui.edit.copy command, in order to get the keyboard shortcuts working.
However the side effect of it is that this action registers a ActionDelegateHandlerProxy to the org.eclipse.ui.edit.copy command, and that ActionDelegateHandlerProxy has its isEnabled method returning true even if the selection does not match the <enablement/> definition of the action in the plugin.xml. In that case, the action that is wrapped in ActionDelegateHandlerProxy is null, and then the isEnabled return true.
I thougnt that a wrapper with a null action should rather cause enablment to be false... Is there something I misunderstood here to get my enablement correctly updated?

Thanks in advance

--
Mickael Istria - BonitaSoft S.A.
http://www.bonitasoft.com/products/downloads.php

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Re: ActionDelegateHandlerProxy and isEnabled [message #541519 is a reply to message #541213]

Mon, 21 June 2010 13:07

Paul Webster

Messages: 6859
Registered: July 2009
Location: Ottawa

Senior Member

Mickael Istria wrote:
> Hi all,
>
> I am trying to get my menu entries activated at the right time, but I am
> a bit confused with the ActionDelegateHandlerProxy. Indeed, I have a
> pop-up menu that defines an action for Copy, and this action is bound to
> the org.eclipse.ui.edit.copy command, in order to get the keyboard
> shortcuts working.

objectContributions can't be key bindings (at least, not properly).
Prior to 3.6 there was a bug that allowed an objectContribution to be
registered for a command (like copy) but it was fixed in 3.6.

The only reason to put a command id in an objectContribution
definitionId is so that the appropriate keybinding is displayed in the
context menu as well.

Later,
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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