public final class CSSFilterParser

  1. Object
  2. CSSFilterParser
Runtime parser for CSS filter: / backdrop-filter: chains. Mirrors the build-time css-compiler’s parser. Returns a Style.FilterChain holding a blur radius (in pixels) and a 4x5 color matrix that composes the chain’s color-style functions (brightness / contrast / grayscale / hue-rotate / invert / opacity / saturate / sepia). The matrix is null when the chain reduces to the identity transform (no color-style functions present, or all of them at their no-op argument).

Nested types

class CSSFilterParser.FilterChainParsed filter chain payload.

Methods

public static CSSFilterParser.FilterChain parse(String css)Parses a CSS filter chain.

Inherited methods

From Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait, clone

Method details

parse

public static CSSFilterParser.FilterChain parse(String css)
Parses a CSS filter chain. Returns null when css is null, empty, or literally none. Throws IllegalArgumentException when a function name or argument is unrecognised.