1817035 - Change cssparser to return HSL/HWB values in stead of converting to RGB

Status: RESOLVED FIXED

(Core :: CSS Parsing and Computation, task)

Description

[Tiaan Louw]

The cssparser is already converting hsl() and hwb() values to rgb(). This is convenient because the spec says hsl/hwb serializes to rgb.

Now that we support color spaces in Gecko, that conversion is not needed any more and should be removed, because now we actually use colors in hsl/hwb color spaces, e.g. color mixing.

If you have color-mix(in hsl, hsl(...), hsl(...)) then really what you get in Gecko is color-mix(in hsl, rgb(...), rgb(...)) so we have to convert both rgb values to hsl first and then do the mix, where we can avoid that conversion if we have the original colors in hsl.

Of course serialization will still be to rgb.

Comment 1

[Tiaan Louw]

This change was landed as part of bug 1812545.