Package com.google.common.css.compiler.gssfunctions

Class GssFunctions.Greyscale

java.lang.Object

com.google.common.css.compiler.gssfunctions.GssFunctions.BaseHslColorManipulation

com.google.common.css.compiler.gssfunctions.GssFunctions.Greyscale

All Implemented Interfaces:

GssFunction

Enclosing class:

GssFunctions

public static class GssFunctions.Greyscale
extends GssFunctions.BaseHslColorManipulation
implements GssFunction

Convert the color to a grayscale (desaturation with amount of 100).

Constructor Summary

Constructors

Constructor	Description
Greyscale()

Method Summary

Modifier and Type	Method	Description
java.util.List<CssValueNode>	getCallResultNodes(java.util.List<CssValueNode> args, ErrorManager errorManager)	Processes a list of function call arguments and returns a list of CssNodes representing this call's output, which replace the input nodes in the AST.
java.lang.String	getCallResultString(java.util.List<java.lang.String> args)	Processes a list of strings as function arguments and returns a string result.
java.lang.Integer	getNumExpectedArguments()	Returns the number of parsed arguments that this function takes, or null if the number of arguments may vary.

Methods inherited from class com.google.common.css.compiler.gssfunctions.GssFunctions.BaseHslColorManipulation

addHslToCssColor, addHslToCssColor

Methods inherited from class java.lang.Object

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

Constructor Detail

Greyscale

public Greyscale()

Method Detail

getNumExpectedArguments

public java.lang.Integer getNumExpectedArguments()

Description copied from interface: GssFunction

Returns the number of parsed arguments that this function takes, or null if the number of arguments may vary.

Specified by:

getNumExpectedArguments in interface GssFunction

getCallResultNodes

public java.util.List<CssValueNode> getCallResultNodes(java.util.List<CssValueNode> args,
                                                       ErrorManager errorManager)
                                                throws GssFunctionException

Description copied from interface: GssFunction

Processes a list of function call arguments and returns a list of CssNodes representing this call's output, which replace the input nodes in the AST. Errors will be reported to the ErrorManager.

Specified by:

getCallResultNodes in interface GssFunction

Throws:

GssFunctionException

getCallResultString

public java.lang.String getCallResultString(java.util.List<java.lang.String> args)
                                     throws GssFunctionException

Description copied from interface: GssFunction

Processes a list of strings as function arguments and returns a string result. Errors are reported by throwing GssFunctionException.

Specified by:

getCallResultString in interface GssFunction

Throws:

GssFunctionException