Capturing scroll bar usage on textarea

I want to know when a user scrolls the textarea. Since there is no
such an event, I need to scroll all the ways scrolling might be
invoked, that is:
* by pressing keys
* by moving mouse
* by drag'n'dropping the scroll bar

First two are easy to implement, but the third one doesn't trigger
even document.onmousedown
I investigated on firefox and safari under osx.
Any ideas? Or at least firm confirmation that it cannot be
accomplished?

Konrad

re: Capturing scroll bar usage on textarea

konryd <konryd@gmail.comwrites:
I haven't tried this with textareas, but the onscroll event works in
the popular browsers on elements with style overflow: scroll / auto.

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Joost Diepenmaat | blog: http://joost.zeekat.nl/ | work: http://zeekat.nl/

re: Capturing scroll bar usage on textarea

* konryd wrote in comp.lang.javascript:What is wrong with the 'scroll' event? An <textarea onscroll='...'>
certainly works for me in Internet Explorer, perhaps you missed this
event?
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Björn Höhrmann · mailto:bjoern@hoehrmann.de · http://bjoern.hoehrmann.de
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re: Capturing scroll bar usage on textarea

Bjoern Hoehrmann wrote:That it is proprietary.
You of all people should know that this is invalid HTML.
I wonder how you of all people could even think about advocating
invalid HTML just to satisfy Internet Explorer users.
Perhaps he was thinking more clearly than you do now.


PointedEars
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(This won't prevent people from viewing your source, but no one
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re: Capturing scroll bar usage on textarea

* Thomas 'PointedEars' Lahn wrote in comp.lang.javascript:It's actually part of the HTML Events in DOM Level 2 Events. I indeed
neglected to mention that the onscroll attribute is not part of HTML4
and derived formats, thank you for adding that information.
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Björn Höhrmann · mailto:bjoern@hoehrmann.de · http://bjoern.hoehrmann.de
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re: Capturing scroll bar usage on textarea

Bjoern Hoehrmann wrote:Yes, indeed! Thank you for pointing this out.
However, since the `scroll' event is part of DOM Level 2 Events one can use
EventTarget::addEventListener() (except for MSHTML where assignment to
..onscroll would have to suffice due to buggy attachEvent()). Great :)
You are welcome.


PointedEars
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realism: HTML 4.01 Strict
evangelism: XHTML 1.0 Strict
madness: XHTML 1.1 as application/xhtml+xml
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