Popup Button bug??

[Craig Newman]

Bob.

What are you trying to accomplish that the native buttons do not do for you? The popUp command, to me, is simply a tool to invoke a display of resident menuItems that do not necessarily have to live at the button location itself, and that button not even needing to be visible.

Are you adding a lot of additional gadgetry?

Craig

> On Jan 27, 2025, at 2:01 PM, Bob Sneidar via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> Interesting, the dictionary didn’t mention mouseUp. But some kind of mouse up or down handler has to be what makes the call. 
> 
> It turns out that rolling your own blocking popup “menu” is not very straightforward. Here is what I came up with: 
> 
> on popupMenu pMenu, pItems, pLocation
>   -- anything less than 3 lines and the scrollbar does not display correctly
>   if the number of lines of pItems >3 and \
>         the last char pItems is cr then \
>         delete last char of pItems
> 
>   set the text of pMenu to pItems
>   set the height of pMenu to \
>         min(the formattedHeight of pMenu, 178) — for me 178 is 10 lines of formattedText YMMV
>   set the width of pMenu to the formattedWidth of pMenu
>   set the topLeft of pMenu to pLocation
>   show pMenu 
>   focus on pMenu
>   set the hilitedLine of pMenu to empty -- because focus will auto-select line 1
>   wait until the visible of pMenu is false with messages
> end popupMenu
> 
> 
> — in the script of a Scrolling List Field
> local lParentCard
> 
> on selectionChanged
>   put getParentCard(the long id of me) into lParentCard
>   put the hilitedLine of me into tLine
>   put line tLine of the text of me into tItem
>   set the currentLocation of lParentCard to tItem — or whatever you want to do with tItem
>   hide me
> end selectionChanged
> 
> on escapeKey
>   selectionChanged
> end escapeKey
> 
> on focusOut
>   selectionChanged
> end focusOut
> 
> FUNCTION getParentCard pObjectID
>   put offset("card id", pObjectID) into tStartChar
>   put char tStartChar to -1 of pObjectID into tCardID
>   return tCardID
> END getParentCard
> 
> Bob S
> 
>> On Jan 27, 2025, at 9:39 AM, Craig Newman via use-livecode <use-livecode at lists.runrev.com> wrote:
>> 
>> Bob.
>> 
>> It works just fine in a mouseUp handler as well. I just did it. 
>> 
>> Craig
>> 
>>> On Jan 27, 2025, at 12:31 PM, Bob Sneidar via use-livecode <use-livecode at lists.runrev.com> wrote:
>>> 
>>> Understood. That is why I wrote, I assure everyone there *IS* a button called “mnuLocations”. As I posted later, this command can only be used in a mouseDown handler. I think I knew this many, many years ago, but I forgot. 
>>> 
>>> Bob S
>>> 
>>> 
>>>> On Jan 27, 2025, at 9:28 AM, Craig Newman via use-livecode <use-livecode at lists.runrev.com> wrote:
>>>> 
>>>> Bob .
>>>> 
>>>> “popup” is not a command that creates a button. It only works with an existing button, opening its contents at a location of your choice. That button can be hidden, but its menu will appear anyway.
>>>> 
>>>> Craig
>>>> 
>>>>> On Jan 27, 2025, at 12:17 PM, Bob Sneidar via use-livecode <use-livecode at lists.runrev.com> wrote:
>>>>> 
>>>>> Hi all. 
>>>>> 
>>>>> I have the command: 
>>>>> popup pMenuButton at pLocation
>>>>> 
>>>>> pMenuButton contains:
>>>>> button “mnuLocations"
>>>>> 
>>>>> pLocation contains: 
>>>>> 55,303
>>>>> 
>>>>> I am getting the error: 
>>>>> stack "moduleCardBehavior": execution error at line 360 (subwindow: can't find stack or button), char 1
>>>>> 
>>>>> I assure everyone there *IS* a button called “mnuLocations”. What in the name of all <fill in the blank> is going on here??
>>>>> 
>>>>> Bob S
>>>>> 
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>>>> 
>>>> 
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