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? _______________________________________________ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev
