Groups do not receive mouseEnter messages?
paul at researchware.com
Tue Jun 25 13:30:16 EDT 2019
There are clearly use cases where it makes sense for a group (such as it
it just being used to contain or enclose a set of other controls) NOT to
received mouse event messages.
There are also use cases where it DOES make sense of a group to received
mouse event messages, such as if you are using a group as a drawing canvas.
Yes, wonderfully in Livecode, most things that can't be done one way,
can be coded around to work another way.
I would suggest an enhancement to LiveCode to add a property to Groups
that toggle between:
behave as a container: current group behavior regarding mouse event
behave as an object: cause the group to received mouse event message
(and other routine object messages) following the usual rules (i.e. if
there is a button in the group that has a mouseEnter handler it gets the
message when the button is entered, but the group gets a message when it
is entered, just as if you have a small button on top of a large button)
I don't know what to call the proposed property, and I certainly would
not, at this time, prioritize it. I've submitted nearly 20 bugs in the
last 60 days and I'd much rather see more of those fixed that a new
feature added. That said, a property like this could be s solution for
both use cases of groups.
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