On Jun 27, 2014, at 11:26 AM, Daniel Weber <[email protected]> wrote:
> I’m running into some trouble developing an app that needs to parse multiple > CSS background values. The problem is that WebKit isn’t returning the same > number of values for “background-image”, “background-position”, > “background-size”, “background-repeat”, and “background-attachment”. If there > are 3 background images, I would expect that all of the background properties > contain 3 values, separated by commas. But that doesn’t seem to be the case. > For example, I parse the following CSS text: > >> background: url(http://example.com/image.png), linear-gradient(rgb(255,0,0), >> blue) center top repeat-y scroll, 10px 10px no-repeat scroll; > > > I then call CSSStyleDeclaration.cssText and I get: > >> background-image: url(http://example.com/image.png), >> linear-gradient(rgb(255, 0, 0), blue), initial; background-attachment: >> initial, scroll, scroll; background-origin: initial, initial, initial; >> background-clip: initial, initial, initial; background-size: initial, >> initial, initial; background-position: 50% 0%, 10px 10px; background-repeat: >> repeat-y, no-repeat; > > > Notice that there are 3 values for background-image (a url, a gradient, and > “initial” for the last one because it doesn’t specify an image). There are 3 > values for background-attachment, background-origin, background-clip, and > background-size. But the problem is with background-position and > background-repeat. They only have 2 values because only 2 of the backgrounds > specify these properties. But then how do I know that the first background > does not specify a background-position or background-repeat? It seems to me > there should be an “initial” placeholder for these properties. Am I missing > something? Assuming other browsers get this right, please file a bug. Simon _______________________________________________ webkit-dev mailing list [email protected] https://lists.webkit.org/mailman/listinfo/webkit-dev
