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Re: [e4-dev] Show / hide a menu according to the perspective
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I think it was wrong to add the visible-when expression to the model.
Tom
On 20.01.14 12:09, Paweł Doleciński wrote:
> Hi Nicolas,
>
> what you need to do is to implement and register your own Visible-When
> Expression which will look up Active Perspective. To do so, you simple
> can inject MPerspectiveStack from which you can retrieve selected
> perspective.
>
> But this is only one step. Next one is that expressions are not
> supported if your menu item is directly placed in Application Model
> under MenuToolbar.
> To have it working, your menu item with visible-when expression needs to
> be under Menu Contributions node.
>
> Anyway, it seems to be a bug. Either visble-when expression should be
> evaluated if menu is somewhere in Windows node or option to set one
> should be not available.
>
> Cheers,
> Paweł.
>
> --
> Pozdrawiam / Best regards
> Paweł Doleciński
>
>
> On 20 January 2014 11:57, Nicolas Sarazin <nicolas.sarazin.pro@xxxxxxxxx
> <mailto:nicolas.sarazin.pro@xxxxxxxxx>> wrote:
>
> Thank you for answer !
>
> But :
>
> MPerspective mpOffers = (MPerspective)
> modelService.find("fr.sogeti.e4.sogeti.perspective.vdoffers",
> application);
> MMenu mmOffers = (MMenu)
> modelService.find("fr.sogeti.e4.sogeti.menu.business", application);
> partService.switchPerspective(mpOffers);
> mmOffers.setEnabled(false);
>
> In this code, mmOffers is null, and I think that it is bound to this
> bug : https://bugs.eclipse.org/bugs/show_bug.cgi?id=383403
>
> I think that I can't change programatically the state of menu. No ?
>
> Thank you in advance
>
>
> 2014/1/20 Dirk Fauth <dirk.fauth@xxxxxxxxx
> <mailto:dirk.fauth@xxxxxxxxx>>
>
> Hi,
>
> this question was asked on the forum a while ago:
>
> http://www.eclipse.org/forums/index.php/t/627845/
>
>
> There is no equivalent for that, as there is no workbenchWindow
> in e4. You could try to workaround that by providing your own
> value for the definition which is set by a event listener that
> reacts on perspective changes for example.
>
> Greez,
> Dirk
>
>
> On Mon, Jan 20, 2014 at 10:32 AM, Nicolas Sarazin
> <nicolas.sarazin.pro@xxxxxxxxx
> <mailto:nicolas.sarazin.pro@xxxxxxxxx>> wrote:
>
> Hello,
>
> I use Eclipse 4.3.1 and Eclipse e4 Tools 0.14.0.
>
> How can I show / hide a menu according to the current
> perspective ?
>
> Menu : Trimmed Window -> Main Menu -> Menu
>
> I looked for "Visible-When Expression", but I don't find the
> variable equivalent of
> "|activeWorkbenchWindow.activePerspective|" in e4.
>
> Thanks in advance !
>
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