Package com.google.common.css.compiler.passes

Class AbbreviatePositionalValues

java.lang.Object

com.google.common.css.compiler.ast.DefaultTreeVisitor

com.google.common.css.compiler.passes.AbbreviatePositionalValues

All Implemented Interfaces:

AtRuleHandler, CssCompilerPass, CssTreeVisitor

public class AbbreviatePositionalValues
extends DefaultTreeVisitor
implements CssCompilerPass

Check shorthand rule declarations that define positional values, such as padding and margin, and eliminate duplicate values if possible. For example, "margin: 1px 2px 3px 2px" will be shortened to just "margin: 1px 2px 3px", since the final 2px is redundant.

Note: At present, this pass applies to border-width, but not border.

See Also:

Property.hasPositionalParameters()

Constructor Summary

Constructors

Constructor	Description
AbbreviatePositionalValues(MutatingVisitController visitController)

Method Summary

Modifier and Type	Method	Description
boolean	enterDeclaration(CssDeclarationNode declaration)	Called before visiting a CssDeclarationNode's sub trees
void	runPass()

Methods inherited from class com.google.common.css.compiler.ast.DefaultTreeVisitor

enterArgumentNode, enterAttributeSelector, enterBlock, enterCharSet, enterClassSelector, enterCombinator, enterComponent, enterCompositeValueNode, enterCompositeValueNodeOperator, enterConditionalBlock, enterConditionalRule, enterDeclarationBlock, enterDefinition, enterFontFace, enterForLoop, enterFunctionNode, enterIdSelector, enterImportBlock, enterImportRule, enterKey, enterKeyBlock, enterKeyframeRuleset, enterKeyframesRule, enterMediaRule, enterMediaTypeListDelimiter, enterMixin, enterMixinDefinition, enterPageRule, enterPageSelector, enterPropertyValue, enterProvideNode, enterPseudoClass, enterPseudoElement, enterRequireNode, enterRuleset, enterSelector, enterSelectorBlock, enterTree, enterUnknownAtRule, enterValueNode, leaveArgumentNode, leaveAttributeSelector, leaveBlock, leaveCharSet, leaveClassSelector, leaveCombinator, leaveComponent, leaveCompositeValueNode, leaveCompositeValueNodeOperator, leaveConditionalBlock, leaveConditionalRule, leaveDeclaration, leaveDeclarationBlock, leaveDefinition, leaveFontFace, leaveForLoop, leaveFunctionNode, leaveIdSelector, leaveImportBlock, leaveImportRule, leaveKey, leaveKeyBlock, leaveKeyframeRuleset, leaveKeyframesRule, leaveMediaRule, leaveMediaTypeListDelimiter, leaveMixin, leaveMixinDefinition, leavePageRule, leavePageSelector, leavePropertyValue, leaveProvideNode, leavePseudoClass, leavePseudoElement, leaveRequireNode, leaveRuleset, leaveSelector, leaveSelectorBlock, leaveTree, leaveUnknownAtRule, leaveValueNode

Methods inherited from class java.lang.Object

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

Constructor Detail

AbbreviatePositionalValues

public AbbreviatePositionalValues(MutatingVisitController visitController)

Method Detail

enterDeclaration

public boolean enterDeclaration(CssDeclarationNode declaration)

Description copied from interface: CssTreeVisitor

Called before visiting a CssDeclarationNode's sub trees

Specified by:

enterDeclaration in interface CssTreeVisitor

Overrides:

enterDeclaration in class DefaultTreeVisitor

runPass

public void runPass()

Specified by:

runPass in interface CssCompilerPass