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callback when form in unmapped

drdanmc

I wanted to have a form that changes depending on what is selected like the leHiEditProp() form.  To get there

I created a modless form with with hiCreateAppForm().  When the code is run that calls hiDisplayForm() I do two things:

hiSetBindKey("Layout" "None<Btn1Down>" "mouseSingleSelectPt() myCallback(?new_selection t)")

leRegUserObjectSelectionFilter("myFilterFunction")

The filter function only allows selection of the type of object I want to be able to select and the bind key intercepts the left click that would select something and updates stuff on my form accordingly.  This part seems to work.  What I haven't quite sorted out is how to make sure that when the form is closed (via OK, via Cancel, via the window manager, or via SKILL) that I always call

leUnregUserObjectSelectionFilter()

hiSetBindKey("Layout" "None<Btn1Down>" "mouseSingleSelectPt()")

to put things back to normal.

I've tried changing the ?callback argument from "myCallback()" to list("myCallback()" "myCallback(?cleanup t)") which lets me handle the "cancel" case but I'm missing the "OK" case.

Am I even on the right track or is there a cleaner way?   I want to avoid leaving my virtuoso session (or worse, someone else's session) in a weird state.

Thanks

-Dan

  • Hi,

    Can you try

        ?callback    '("myCallback(?cleanup t)"    "myCallback(?cleanup t)")

    regards

    Max

  • in reply to mbracht

    the problem is if someone clicks "apply" I don't want to run the cleanup part.  Rather I'd like to be able to select something else in the layout and have my form update appropriately.  I only want to run cleanup if the window is closed.  

  • in reply to drdanmc

    there is s way to define separate callbacks for Ok, Apply and Cancel in terms of the ?buttonLayout argument to hiCreateAppForm:

    ?buttonLayout    list( 'Empty
                           list('OK     "myOkCallback(hiGetCurrentForm())")
                           list('Cancel "myCancelCallback(hiGetCurrentForm())")
                           list('Apply  "myApplyCallback(hiGetCurrentForm())")

    that way your may easily do the cleanup  for Ok and Cancel only

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