Re: overridding WorkspacesDisplay

["Jasper St. Pierre" <jstpierre mecheye net>]

Your extension should be able to be enabled and disabled at any time.

On Tue, Aug 14, 2012 at 3:27 AM, Amy C <mathematical coffee gmail com> wrote:
> On 14 August 2012 16:47, Jasper St. Pierre <jstpierre mecheye net> wrote:
>> On Tue, Aug 14, 2012 at 2:45 AM, Amy C <mathematical coffee gmail com> wrote:
>>> Hi all,
>>>
>>> For some reason, I can't seem to patch WorkspacesDisplay. (I'm trying
>>> to define what happens when you scroll your mouse button over the
>>> workspace thumbnail sidebar in the overview):
>>>
>>> const WorkspacesView = imports.ui.workspacesView;
>>> const WDproto = WorkspacesView.WorkspacesView.prototype;
>>>
>>> let storage;
>>> function enable () {
>>>     storage._onScrollEvent = WDproto._onScrollEvent; // store the original
>>>     WDproto._onScrollEvent = function () {
>>>         log('stole the scroll event');
>>>     };
>>> }
>>
>> When you connect to a signal, it passes the function object, not the
>> prototype and function name.
>
> Oh, I guess that makes sense. (I had hoped that by changing
> .prototype.eventcallback, that gets replaced *before* _init gets
> called (which connects up the signals), hence substituting the
> overridden callback instead of the original one).
>
> I have worked around it. cheers!



-- 
  Jasper