124714 - input type=text has caret horribly slow and blinks with animated gif?

Status: RESOLVED DUPLICATE of bug 141900

(Core :: Layout: Form Controls, defect)

Description

[Giovanni Gigante]

If you look at this URL and try to enter something into the text box, you will
notice that the type is accepted at an abnormally slow pace. Also, the cursor
inside the box blinks in a strange ways (it seems to mimick the animation of the
GIF image on the upper left). I have no idea why this happens.

Comment 1

[Kai Lahmann (is there, where MNG is)]

I can reproduce the crazy blinking, the other doesn't look that show here -
mozilla .0.98 + Linux

Comment 2

[Boris Zbarsky [:bzbarsky]]

sounds like icky timer stuff going on (with the blinking).

Comment 3

[Damian Yerrick]

On Mozilla build 2002020803 on Windows ME on a PIII-866 with 128 MB of RAM,
I can reproduce the unusual pattern of insertion point blinking but not the
slow response to entered text.

Reporter: How fast is your machine?

Comment 4

[Giovanni Gigante]

My machine is a PII-300 with 128 Mb RAM. I reported it because I have *never* 
seen such a drastical slowing before.

Comment 5

[Guido Wischrop]

please take a look at http://www.nt-treiberentwicklung.de/mozilla/index.html
try the input fields. on my athlon 800 MHz 384 MB it's terrible slow with
mozilla 0.9.8 on w2k pro. I know this is heavy html (form on a moveable layer),
but IMHO it could be a little bit faster.

Comment 6

[TucsonTester3]

happens with  build: 2002021803    OS Win 95 OSR 2.0

Comment 7

[rods (gone)]

-->

Comment 8

[Alberto Marabini]

I've noticed the same problems (Moz 0.9.9 Win 2000).
Here i've reproduced the behavior. These urls takes a while to load.
In both i create 4000 divs (what the hell are u doing with 4000 divs?!!) and i 
put a reference to them inside an array.
The first reproduces well this bug behavior
The second... goes a lot better.
The difference is that the divs of the first url are absolutely positioned. In 
the second not.
http://151.38.43.217/mozprobs/prova20.htm
http://151.38.43.217/mozprobs/prova21.htm
I where saying... what the hell are u doing with 4000 divs? I've noticed the 
problem in a different context. Let's say a 50/60 images, a 100,150 divs mostly 
absolutely positioned.


 

Comment 9

[Alberto Marabini]

With the build 2002041103 the problem seems to be strongly reduced.

Comment 10

[kinmoz]

This bug actually reports 2 problems:

1. Typing in text widgets is sometimes slow. (Bug 141900)
2. Caret blinks in sync with animated gifs   (Bug 54153)

I've tried all the urls reported in this bug and all are zippy because of the
fixes in bug 141900 which is present in any Mozilla builds beginning with the
mozilla1.1beta milestone.

http://www.igiochideigrandi.it/www/cerca.htm is no longer accessible.

Since the majority of the urls reported in this bug deal with issues pointed out
in bug 141900, I'm going to dup this bug against bug 141900. Bug 54153 covers
the blinking issue.

*** This bug has been marked as a duplicate of 141900 ***