Context Menu Handlers

I am attempting to construct a self-contained MVP control called Catalog;
the model named Catalog, the view named CatalogView, and the presenter named
CatalogPresenter.  I added a context menu to the Catalog View in the View
editor and created command handler methods in the CatalogView class.  When I
test this control, the menus are properly enabled.

Next I created a second MVP control called CatalogShell; the model named
CatalogShell, the view named CatalogShellView, and the presenter named
CatalogShellPresenter.  The CatalogShell control should contain an instance
of the Catalog control and additionally provides a toolbar and menu bar for
the program.

When I test the CatalogShell control, I noticed that the context menu items
in the Catalog control are now disabled.  Upon further inspection, if I add
command handler methods named identical to the CatalogView class's handler
methods, the menu items become reenabled.

Is the default behavior of the context menus to be handled by the top-most
view?  Does anybody know how to construct an MVP control such that no matter
which parent view the control is placed in, the context menu messages are
sent to the original control?  (i.e. I would like the context menu handlers
for the Catalog control to be sent to the class CatalogView, not
CatalogShellView).

Jon

Jonathon Spaeth <[hidden email]> wrote in message
news:Ca8f9.10124$[hidden email]...
...
> Is the default behavior of the context menus to be handled by the top-most
> view?  Does anybody know how to construct an MVP control such that no
matter
> which parent view the control is placed in, the context menu messages are
> sent to the original control?  (i.e. I would like the context menu
handlers
> for the Catalog control to be sent to the class CatalogView, not
> CatalogShellView).

If I understand what you are describing correctly the context menus should
be handled by the CatalogPresenter, and should be enabled if the methods
exist.  The problem you are experiencing sounds like the view may not be
properly connected to the presenter.  You might double check your
creatPresenters method, and make sure the view name and the name used in the
code there are the same.  Also make sure your onViewOpened method does a
super send.  You might try using the visual inspector or some well placed
halts to make sure the presenters are what they are supposed to be.  I think
this should work the way you expect it to work, rather then the way it
appears to be working.

Chris

Chris

Thanks for the reply; my view and presenter were properly connected; the
problem, however, was that I implemented the message handlers in the
CatalogView class as opposed to the CatalogPresenter.  When I moved those
methods from the view class to the presenter class, the weird behavior
disappeared.

Thanks for the help!
Jon

"Christopher J. Demers" <[hidden email]> wrote in
message news:alj8gs$1r8dob$[hidden email]...
> Jonathon Spaeth <[hidden email]> wrote in message
> news:Ca8f9.10124$[hidden email]...
> ...
> > Is the default behavior of the context menus to be handled by the
top-most
> > view?  Does anybody know how to construct an MVP control such that no
> matter
> > which parent view the control is placed in, the context menu messages
are the
> code there are the same.  Also make sure your onViewOpened method does a
> super send.  You might try using the visual inspector or some well placed
> halts to make sure the presenters are what they are supposed to be.  I
think
> this should work the way you expect it to work, rather then the way it
> appears to be working.
>
> Chris
>
>