Any message sent to popup menu (btn) when nothing is selected?

[Tore Nilsen]

I did not think of the mouseRelease handler, but it is much simpler and better than my solution. You would still ned the if-statement in the menuPick handler to get any clicks on the divider lines, as they will count as a menuPick with the pItemName being empty.

Tore
> 12. apr. 2016 kl. 20.48 skrev Mike Bonner <bonnmike at gmail.com>:
> 
> You can use the "mouserelease" message for this.
> 
> This script in the popup works in both 7 and 8.Didn't check earlier
> versions.
> 
> on menuPick pItemName
>   put pItemName -- displays what was chosen
> end menuPick
> 
> on mouserelease
>   put "Nothing chosen" -- if nothing was chosen
> end mouserelease
> 
> 
> On Tue, Apr 12, 2016 at 12:36 PM, Tore Nilsen <tore.nilsen at me.com> wrote:
> 
>> In order to catch the user escaping the button without making any choices
>> this works:
>> 
>> local lLabel
>> on mouseDown
>>   put the label of me into lLabel
>> end mouseDown
>> on mouseLeave
>>   if lLabel is not empty then
>>      if label of me = lLabel then
>>         answer "You did not select anything"
>>         put empty into lLabel
>>      end if
>>   end if
>> end mouseLeave
>> 
>> 
>>> 12. apr. 2016 kl. 19.01 skrev Tore Nilsen <tore.nilsen at me.com>:
>>> 
>>> When you do not select an item in the menu, pItemName is empty. If you
>> set up a condition where the switch statement kicks in if pItemName is not
>> empty, then you will get the result you wanted, also if the user leaves the
>> menu without making any choice.
>>> 
>>> Here is a script that demonstartes this:
>>> 
>>> on menuPick pItemName
>>>  if pItemName is not empty then
>>>     answer pItemName
>>>  else
>>>     answer "You did not select anything"
>>>  end if
>>> end menuPick
>>> 
>>> Regards Tore
>>> 
>>> 
>>> 
>>>> 12. apr. 2016 kl. 18.51 skrev Paul Dupuis <paul at researchware.com>:
>>>> 
>>>> I have a user interface problem. A popup menu (a button) is presented.
>>>> The button has a number of menu items, some dividers between items, etc.
>>>> It has a menuPick handler that covers all the items in the menu
>>>> explicitly and a default handler at the end (just for good measure).
>>>> 
>>>> I want to take some action IF a user pops up the popup menu, but does
>>>> NOT select any menu item (so presses escape or clicks on a non-active
>>>> item like a menu divider or just click elsewhere so the popup is
>> dismissed)
>>>> 
>>>> The problem is, there appears to be NO message sent to the button of a
>>>> popup menu if NO active menu item is selected. The "default" switch
>>>> statement option never happens because a menuPick is never sent.
>>>> menuPick only get send when an active menu item is selected.
>>>> 
>>>> A closeControl to the button when the popup menu is dismissed WOULD have
>>>> been another logical possibility but closeControl is only sent to groups
>>>> (according to the dictionary)
>>>> 
>>>> Has any one else ever needed to take an action if a menu item is NOT
>>>> selected from a popup menu? Does anyone have any ideas on how this may
>>>> be handled? Should a message be sent to a popup menu button when the
>>>> popup menu is dismissed without a menuPick?
>>>> 
>>>> If no message exists, should one? Should popup menus send a closeControl
>>>> to their button of dismissed without a menuPick? Should this be an
>>>> enhancement request for LiveCode version 1,936 (or earlier)? Why do I
>>>> run into these weird things?
>>>> 
>>>> 
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