[Laszlo-dev] Why we use other div to catch mouse event

[Frank Guo]

Hi Tucker / Max,

There some bugs about mouse events handling when different components
overlap.
I found one lzsprite will create another div to catch the mouse events.
Some bugs come from such mechanism. For example LPP-10120, when the
function makeTextLink of textclass will add a span element of the div,
but such div will be overlapped by the clickdiv of the other view in
lzcanvasclickdiv.

I believe there must a very reason we choose such mechanism,
could tell me the reason. And it's better to give the some suggestion to
resolve such bugs.

thanks a lot
frank
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