Trapping for mouseDown on the desktop on a Mac

Ray ray at linkit.com
Mon Oct 14 21:19:09 CEST 2013


Phil,

Many thanks for including this stack!  I'm in New York right now (out of 
town for me) but I'm anxious to get back home in a few days where I can 
experiment with this on my Mac.  Interesting how you've put the scripts 
in the card script but still need the field present to catch the 
message.  What I'd like to see is a stack with absolutely no objects in 
it receive the dragDrop message somewhere, either in the card script or 
the stack script.   But evidently we need to put 'dummy' controls like a 
field or an image on the card to trap for this message.  Please correct 
me if I'm wrong.

Thanks,

Ray

On 10/13/2013 2:55 PM, Paul Hibbert wrote:
> Ken,
>
> I don't think you even need to go into a polling mode, as soon as user drags an item onto a stack it triggers a 'dragMove' message so trapping that should work on both platforms.
>
> Tried a few tests with a small stack and tackling the problem from a different angle seems to do the trick on OSX and Win7.
>
> Ray, the test stack is here, hope it helps… https://www.dropbox.com/s/hddd6qx0vmilsot/Drag%20and%20Drop%20text.livecode - no restrictions on use!
>
> Paul
>
> On 2013-10-13, at 9:48 AM, Ken Ray wrote:
>
>> How about going into a polling mode, checking the dragData["files"] every second or so... it should start out empty, but as soon as the user starts to drag a file from the desktop, it should have something in it.
>>
>> Just a thought,
>>
>> Ken Ray
>> Sons of Thunder Software
>>
>>> On Oct 12, 2013, at 11:25 AM, Ray <ray at linkit.com> wrote:
>>>
>>> Phil - thanks for the suggestion but I just tried it and no-can-do. For some reason, and this is a Mac-only behavior, when I mouseDown on the desktop I can't see any messages at all which are sent to Livecode.  The suspend message is sent if I mouseDown on another stack, but not on a file on the desktop or the desktop itself.
>>>
>>> Let me know if anything else comes to mind.
>>>
>>> Thanks,
>>>
>>> Ray
>>>
>>>> On 10/12/2013 10:51 AM, Phil Davis wrote:
>>>> Have you tried using 'suspend' instead of 'mouseDown' and 'suspendStack'? Should work the same on both platforms (famous last words!).
>>>>
>>>> Phil
>>>>
>>>>
>>>>> On 10/12/13 6:31 AM, Ray wrote:
>>>>> On Windows the instant there is a 'mouseDown' on the desktop the current stack window goes inactive, thus triggering the suspendStack message.  I use this to create a field which then accepts dragDrops.  However, this is different on a Mac.  The current stack window on a Mac waits until the mouse comes up on a desktop click, thus defeating my scheme which creates the field to accept a dragDrop as soon as the mouse goes down on the desktop.
>>>>>
>>>>> Any ideas anybody on how to trap for a mouse down on the desktop on a Mac?
>>>>>
>>>>> Many thanks,
>>>>>
>>>>> Ray
>>>>> LinkIt! Software
>>>>>
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