Bug 160934

Summary: Support image-set() standard syntax
Product: WebKit Reporter: yisibl <50167214>
Component: CSSAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: 50167214, bfulgham, dino, jonlee, m.goleb+bugzilla, simon.fraser, sunil.ratnu, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: All   
OS: All   
URL: https://drafts.csswg.org/css-images/#image-set-notation
See Also: https://bugs.webkit.org/show_bug.cgi?id=159373

Description yisibl 2016-08-16 21:18:51 PDT
In spec[1] says:

Each <string> inside image-set() represents a <url>, just like in image().

image-set( "foo.png" 1x, "foo-2x.png" 2x, "foo-print.png" 600dpi );

[1] https://drafts.csswg.org/css-images/#image-set-notation
Comment 1 Radar WebKit Bug Importer 2016-08-17 12:41:09 PDT
Comment 2 Sunil Ratnu 2016-09-22 06:51:52 PDT
Is WebKit planning to support the above standard syntax in near future?
Comment 3 Dean Jackson 2016-09-22 08:54:28 PDT
I'm not sure what part of the syntax this bug is requesting. We don't yet support the dpi option, but it doesn't sound like this is the complaint.

Can you provide a test case that shows where we are failing?
Comment 4 Sunil Ratnu 2016-09-22 23:09:53 PDT
Currently Blink supports this syntax:

background-image: image-set( url("foo.png") 1x,
                             url("foo-2x.png") 2x,
                             url("foo-print.png") 3x );

From standard syntax, I mean the following:
background-image: image-set( "foo.png" 1x,
                             url("foo-2x.png") 2x,
                             "foo-print.png" 600dpi );

Looking at this, it can be seen that the standard syntax (i.e. [2]) is superset of currently supported syntax (i.e. [1]).

So, basically, you do not need url("..."), you can enter it as a string without the url() function. Also, the resolution part supports more than just #x (i.e. it supports #x as well #dpi)

Does WebKit have plans to support this standard syntax?
Comment 5 yisibl 2016-09-23 03:01:21 PDT
Yeah Sunil Ratnu is right