>From [EMAIL PROTECTED] Fri Mar 16 15:22:08 2001
>
>i would prefer the other way, that ns acts as ie does.
>there are situations where it makes a difference if the user releases the
>mouse over another layers than it was pressed.
I think I agree. These situations occur when the mousedown does
not perform an action, other than possibly providing feedback.
In other situations when the mousedown does start performing
an action, such as dragging, then one does want to know what
object the initial action was being formed on (or relative to).
One may be interested in what object the mouseup occurs in, such
as for a drop action, or sometimes it doesn't matter, such as
for a scrollbar drag and release.
To allow all these possibilities, it seems that the lowest level
functionality should support what IE does: identify the object
where the mouseup occurs. Applications (or widgets) that need
to know what the mousedown object was should remember that as part of
a higher level event, or whatever. The 'click' and 'double click'
events are higher-level events where the mousedown and mouseup occur
for the same object.
I tried web searching for what other systems (e.g. Java, VB) do,
but didn't find much. Usually it is just ambiguous what a
mouseup event means.
>an event should fire on the obj it occurs on, always!
That seems clear enough. But we could define a higher-level
event, called a drag-release or drop, that fires on the object being
dragged, not just on the object being dropped on, or perhaps both the
source and the target should be identified.
>i don't know if it's possible to make ns acting as ie does, but i'd prefer
>that at least ie acts how it should.
Someone should track down whether mozilla considers its behavior
a bug or a feature.
It should be possible to map events either way, making either look
like the other. It might be hard to deal with systems that only
want to trigger events after specifically
declaring that events should be captured for each element where they
might occur. I don't care where a mouseup event occurs for a scrollbar
drag, for example.
--
Daniel LaLiberte
[EMAIL PROTECTED]
[EMAIL PROTECTED]
http://www.holonexus.org/~liberte/
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