1004327 - input type=number limited to 3 digits of precision

Status: VERIFIED FIXED

(Core :: Layout: Form Controls, defect)

Description

[Owen Kaluza]

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:29.0) Gecko/20100101 Firefox/29.0 (Beta/Release)
Build ID: 20140428193603

Steps to reproduce:

See: http://jsfiddle.net/LAk5C/
Create an Input control of type=number with greater than 3 decimal digits step & value
<input type="number" name="test" step="0.0001" value="1.1111">



Actual results:

Only shows 3 digits of precision, regardless of step or initial value precision:
Above example shows: 1.111
Internal value steps correctly but display changes only every 10 steps because of rounding to 3 decimal places



Expected results:

Not sure what the HTML5 spec says but I think if display value must be rounded then it should never be truncated to a lower precision than the step value.

Comment 1

[Robert Utasi [:hunboy]]

Attachment: testcase - value rounded to 3 digits

Comment 2

[Jonathan Watt [:jwatt]]

Attachment: patch

Comment 3

[Boris Zbarsky [:bzbarsky]]

Comment on attachment 8415826 [details] [diff] [review]
patch

r=me

Comment 4

[Jonathan Watt [:jwatt]]

http://hg.mozilla.org/integration/mozilla-inbound/rev/5fcd868dccc6

Comment 5

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/mozilla-central/rev/5fcd868dccc6

Comment 6

[Markus Popp]

Will this be uplifted to Aurora & Beta?

Comment 7

[Jonathan Watt [:jwatt]]

Comment on attachment 8415826 [details] [diff] [review]
patch

[Approval Request Comment]
Bug caused by (feature/regressing bug #): bug 844744
User impact if declined: some site's use of <input type=number> will be broken
Testing completed (on m-c, etc.): landed on m-i
Risk to taking this patch (and alternatives if risky): very low
String or IDL/UUID changes made by this patch: none

Comment 8

[Jonathan Watt [:jwatt]]

https://hg.mozilla.org/releases/mozilla-aurora/rev/a8591c466832
https://hg.mozilla.org/releases/mozilla-beta/rev/8c9e76ede410

Comment 9

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/releases/mozilla-b2g30_v1_4/rev/8c9e76ede410

Comment 10

[Petruta Horea [:phorea], Desktop Test Engineering]

Verified as fixed on Firefox 30 beta 2 (20140505140302), Aurora 31.0a2 (20140505004003) and Nightly 32.0a1 (20140505030202) under Win 7 64-bit, Ubuntu 12.10 32-bit and Mac OSX 10.7.5

Comment 11

[Markus Popp]

Chances are probably very slim and maybe it's already too late, but I give it a try anyway.

There is going to be a maintenance update of Firefox 29. Any chance to get this included?

Comment 12

[Sylvestre Ledru [:Sylvestre]]

It is indeed too late, sorry. The next version is not too far anyway.