On 01 Dec 2014, at 10:26, Thierry Goubier <thierry.goubier@gmail.com> wrote:



2014-12-01 10:19 GMT+01:00 Marcus Denker <marcus.denker@inria.fr>:

The mechanism is very simple� if you remove a tool and then use it, there will be a DNU.
(it should open instead window and tell that no tool is installed)

In fact, it's worse: it DNUs even if you still have some tools installed, just because you unregistered one of them.

i.e. With AltBrowser installed, you have four browsers in your image: SystemBrowser, Nautilus, PackageTreeNautilus, and AltBrowser. If you unregister AltBrowser, you have a DNU, even if you have the three others still available.

Yes, as they are there but not registered. ToolRegistry just knows about the *last* tool registered. If you unregister that, there is none
(this is why ToolRegistry needs to be extended to remember all and just have the last be the default)

There is apparently some magic in the world menu to trigger a user-driven choice among existing tools, but I don't know how to trigger that.


No, the only thing it does is to execute all the methods (in a some un-defined order). The last tool�s #registerToolsOn: then will be the one
that ToolRegistry knows about.


Marcus