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Re: [css-pseudo][css-ui] Allow to control selection width related to letter-spacing

From: Sebastian Zartner <sebastianzartner@gmail.com>
Date: Tue, 2 Feb 2016 16:21:44 +0100
Message-ID: <CAERejNagu9Ogw=aMA-E2YbjXT24+HBP8xsq=wVysqG0=1Zeizg@mail.gmail.com>
To: Jonathan Kew <jfkthame@gmail.com>
Cc: public-html@w3.org, www-style list <www-style@w3.org>
On 2 February 2016 at 15:55, Jonathan Kew <jfkthame@gmail.com> wrote:

> On 2/2/16 14:37, Sebastian Zartner wrote:
>> Use case: I have an input field, which has a background image visually
>> putting each character into a box. When the text cursor is moved to the
>> end of the field, i.e. after number 9, it moves the display of the
>> numbers to the left, so that they don't fit into the boxes anymore. See
>> this example:
>> data:text/html,<input maxlength="5"
>> style="box-sizing:content-box;width:17.1ch;border:1px solid
>> black;background-image:repeating-linear-gradient(to right, transparent,
>> transparent 1.72ch, gray 1.72ch, gray 1.82ch);padding:0
>> 0.4ch;font-family:monospace;font-size:6ch;letter-spacing:0.8ch;"
>> value="0123456789">
>> So, what would be needed to get a better UX, could be either:
>> - define that the letter spacing doesn't affect the last character
> FWIW, CSS Text already says[1] that "[l]etter-spacing must not be applied
> at the beginning or at the end of a line".

Ah, good to know!
Though I assume completely forbidding letter-spacing at the end of a line
may also not be desirable, as that will result in the text cursor being at
a different place than the character when you enter or remove one at the

But AFAIK neither Gecko nor Blink currently implements this correctly per
> spec.



> JK
> [1] https://www.w3.org/TR/css-text-3/#letter-spacing-property
> within a line (maybe in combination with maxlength)
>> - define that the 'viewport' within the input is moved in controllable
>> steps
>> I hope I expressed the issue clearly enough. I am cross-posting, because
>> I'm not sure whether this can already be achieved in some way, or should
>> be solved in HTML or CSS, or should be left up to the user agent. I'm
>> aware that this is an edge case (literally :-) ).
>> Sebastian
Received on Tuesday, 2 February 2016 15:22:34 UTC

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