1301295 - [DateTimeInput] Increment/decrement values based on step when using arrow keys

Status: NEW

(Core :: Layout: Form Controls, defect, P3)

Description

[Jessica Jong [:jessica] (inactive)]

Follow-up to Bug 1288591.

When using arrow keys to increment/decrement values on each of the field, we should consider step.

For example, if type=time and step is 2 minutes. When using up/down keys in minute field, minute should increment/decrement by 2 each time.

Comment 2

[Anselm Hannemann]

The step attribute itself seems not to be supported, also not with the `dom.forms.datetime` and its sub-components enabled in Firefox Nightly.

The UI in general should behave like in Chrome, where if you add `step="300"` the seconds are not editable anymore and the only possible steps are 5 minute-steps and hours to enter.

Currently, Firefox just displays a HH:MM:SS field and the increment/decrement arrows in the field.

Comment 3

[Jessica Jong [:jessica] (inactive)]

(In reply to info from comment #2)
> The step attribute itself seems not to be supported, also not with the
> `dom.forms.datetime` and its sub-components enabled in Firefox Nightly.
> 
> The UI in general should behave like in Chrome, where if you add
> `step="300"` the seconds are not editable anymore and the only possible
> steps are 5 minute-steps and hours to enter.
> 
> Currently, Firefox just displays a HH:MM:SS field and the
> increment/decrement arrows in the field.

The step attribute is supported. You can try <input type=time value="12:30" step="300">, then if you change the value to "12:32", you get a step mismatch validity state (red border with a error message when you move your mouse over the input box).
It's just not reflected when you use up/down arrow keys.
(Just a side note, in Chrome, if you change the step to "420", using up/down arrow keys will display all the values)

Morpehus, per https://mozilla.invisionapp.com/share/GU7VBIB4D#/screens/171579445 Section D, we're not going to support "increment/decrement values based on step when using arrow keys", right?

Comment 4

[Morpheus Chen [:morpheus] UX]

The bug was opened at UX spec v1.3, and we did have increment/decrement values change back then. However, considered of resource and consistency, the conclusion was to descoped this feature and I updated the spec to v1.4 on 8/17/2016 accordingly. From my point of view, I still think this feature provides a great value to users, but we are still lack of resource and time, so I would suggest keeping this as a backlog for now.