CSS "text-overflow: ellipsis;" finally landed in Gecko | Hacker News Reader

CSS "text-overflow: ellipsis;" finally landed in Gecko

bugzilla.mozilla.org

88 pointsthomasbachem27 comments

"text-overflow: ellipsis" is a great start, but it's really too bad it only applies to individual lines of text (via "white-space: nowrap").

it would be very useful if we had a property to truncate text when it reaches the end of a container with a fixed height. so if the container is 3.5 lines tall, 3 lines should be shown with an ellipsis at the last character. bonus points if we can specify a separator, so that the ellipsis will only be applied after the last whole word (space), line (line break), or just character.

I agree, it would be a lot more useful. Safari has an unsupported property (-webkit-line-clamp) that goes a little further but still limited. The fact that none of the browsers provides a way (no even vendor-prefixed) to do it makes me think that there are big technical hurdles.

I needed this desperately for a project I worked on last fall and ended up writing tons of JS which felt oh so wrong. Newspapers and magazines would LOVE to have that. Especially on mobile Safari. Especially on tablets.

I imagine it's simply complex. Part of the box model involves expanding containers to fit the content within them, and properties like float, overflow, width, and height run counter to that. So what do you do with "expand this div to fit the text it contains, but also allow the text to be truncated if it doesn't fit, and remember to leave room for the ellipses"?

When you get into fancier concepts like truncating a set of lines, or only at certain word/phrase/sentence boundaries, you're into desktop publishing typesetting. To do that properly you're not just truncating when the container overflows, you're also adjusting the spacing between words and letters to make every line look consistent and to get as much of the text to fit neatly as you can. There aren't many pieces of software that professionals trust to do that well, and the ones that exist are expensive. We're not likely to see those algorithms getting into everyone's browser.

> and remember to leave room for the ellipses

As long as the container is at least wide enough for one ellipses you shouldn't need to leave room: once you've decided where to place all the text, where an ellipses is needed overwrite the area with what would otherwise be the background and add the dots.

Though I suppose that might not be desirable as it would result in partial characters. A little more hassle (but not much) would be to work back until the end of the next whole character.

But other than that you are right: the difficulty won't be rendering the ellipsis it will be in deciding what to do when the (implicit or explicit, and quite possibly deeply nested) "make this all fit if you can" and "truncate this if you need to" directives overlap - that could get quite hairy, if you want to get something that looks nice for most conceivable combinations.

Or it can be quite simple. Note that we are talking about overflow: text that given the CSS on the page would become invisible. This knowledge is already present in the rendering subsystem because it has to decide what gets displayed.

The only trick is to open up enough space at the end of the line to render the ellipsis. It's not rocket science to do it well enough.

It can't be a completely intractable problem; iPhone apps have been able to do it since iOS 2.0.

Very much so... I struggled with this last year, trying to make text reliably reach near the end of a two line space without it going to a third line and this ending without an ellipsis... without using JavaScript. CSS really does not have good text handling.

Next up: "text-align: centaur" (http://textaligncentaur.com).

Yep, that means that every major browser (including IE6!) supports it now. As soon as FF6 has spread, we can begin to make real use of it :).

If everyone had that attitude, we'd still be stuck at HTML 3.2... Yes, it needs time to catch up, sure, but in a few years it will be useful to have.

It's just a cosmetic feature, so you can use it already. Older browsers won't show the ellipsis in that case but who cares. Graceful fallback is automatic.

I've been maintaining a jQuery plugin for the text-overflow property for a while. It works well in most cases: http://www.bramstein.com/projects/text-overflow/

You can see a test page here, which only works in Firefox due to the feature detection: http://www.bramstein.com/projects/text-overflow/examples.htm...

There is a way to get this working before FF5, it just involves a weird hack with an XML file.

http://mattsnider.com/css/css-string-truncation-with-ellipsi...

Yay for not needing this down the road.

That was one of the craziest hacks I've ever used on a production site. Glad this is finally implemented..

Ditto. Had flashbacks of fixing stuff for IE6 that day.

They broke that in FF4 (intentionally).

I'm on FF 6.0a2 (Aurora channel) and none of those examples have ellipses for me.

Awesome! I've always felt dirty fixing text-overflow (more often than not a cosmetic fix) on the backend, albeit it's not often feasible to create web sites where content and presentation are truly separated.

jQuery Mobile makes extensive use of this (though I've turned it off on a mobile app I'm making).

CanIUse shows that Firefox is the last browser to support ellipsis [1] and comparing Firefox 7 to Chrome 14 [2] shows a few other things that some web developers would like.

Firefox also has quite a long way to go on HTML5 forms [3].

[1] http://www.caniuse.com/#search=overflow [2] http://www.caniuse.com/#compare=y&b1=firefox+7&b2=ch... [3] http://wufoo.com/html5/

Unfortunately it will have to wait for FF7 https://bugzilla.mozilla.org/show_bug.cgi?id=312156&;

6 months from now. ;-)

3 months 1 week from now, actually.

Do you mean in beta or something? I though FF6 would be released in 3 months, FF7 three more after that.

I've been missing this feature in HTML for so long when making tables/overviews. Great to hear it's finally implemented.

Firefox is the only major browser that hasn't supported this. It even works in IE6.

Then I learned something new :)

Don't forget that it only applies the ellipsis to a single line, not a block of text! You'd assume they'd knock out both of these use cases.

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