Andreas Kling 8b27bc078c LibWeb: Add ComputedCSSSstyleDeclaration and support 2 properties :^) ...

getComputedStyle(element) now returns a ComputedCSSStyleDeclaration
object, which is a live view of the computed style of a given element.

This works by ComputedCSSStyleDeclaration being a wrapper around an
element pointer. When you ask it for a CSS property, it gets the latest
computed style values from the element and returns them as a
CSS::StyleProperty object.

This first cut adds support for computed 'color' and 'display'.

In case the element doesn't have a corresponding node in the layout
tree, we fall back to using specified style instead. This is achieved by
performing an on-the-fly style resolution for the individual element and
then grabbing the requested property from that resolved style.

2021-09-12 20:44:50 +02:00

3.0 KiB

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