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

Class StrictCss2

java.lang.Object

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

com.google.common.css.compiler.passes.StrictCssBase

com.google.common.css.compiler.passes.StrictCss2

All Implemented Interfaces:

AtRuleHandler, CssCompilerPass, CssTreeVisitor

public class StrictCss2
extends StrictCssBase

This compiler pass enforces that only correct CSS 2.1 is used. See "http://www.w3.org/TR/CSS21/" for the specification.

Field Summary

Fields inherited from class com.google.common.css.compiler.passes.StrictCssBase

errorManager, visitController

Constructor Summary

Constructors

Constructor	Description
StrictCss2(VisitController visitController, ErrorManager errorManager)

Method Summary

Modifier and Type	Method	Description
boolean	enterAttributeSelector(CssAttributeSelectorNode node)	Ensures that attribute selectors are valid.
boolean	enterCombinator(CssCombinatorNode combinator)	Ensures that the combinator '~' (introduced in CSS 3) is not used.
boolean	enterPseudoClass(CssPseudoClassNode node)	Ensures that only pseudo-classes valid in CSS 2.1 are used.
boolean	enterPseudoElement(CssPseudoElementNode node)	Ensures that the new pseudo-element notation (::) is not used, because the notation has been introduced in CSS 3.

Methods inherited from class com.google.common.css.compiler.passes.StrictCssBase

enterValueNode, reportUnsupported, runPass

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

enterArgumentNode, enterBlock, enterCharSet, enterClassSelector, enterComponent, enterCompositeValueNode, enterCompositeValueNodeOperator, enterConditionalBlock, enterConditionalRule, enterDeclaration, enterDeclarationBlock, enterDefinition, enterFontFace, enterForLoop, enterFunctionNode, enterIdSelector, enterImportBlock, enterImportRule, enterKey, enterKeyBlock, enterKeyframeRuleset, enterKeyframesRule, enterMediaRule, enterMediaTypeListDelimiter, enterMixin, enterMixinDefinition, enterPageRule, enterPageSelector, enterPropertyValue, enterProvideNode, enterRequireNode, enterRuleset, enterSelector, enterSelectorBlock, enterTree, enterUnknownAtRule, 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 Details

StrictCss2

public StrictCss2(VisitController visitController,
 ErrorManager errorManager)

Method Details

enterCombinator

public boolean enterCombinator(CssCombinatorNode combinator)

Ensures that the combinator '~' (introduced in CSS 3) is not used.

Specified by:

enterCombinator in interface CssTreeVisitor

Overrides:

enterCombinator in class DefaultTreeVisitor

enterPseudoClass

public boolean enterPseudoClass(CssPseudoClassNode node)

Ensures that only pseudo-classes valid in CSS 2.1 are used. Especially, the new pseudo-classes introduced in CSS 3 are not valid.

Specified by:

enterPseudoClass in interface CssTreeVisitor

Overrides:

enterPseudoClass in class DefaultTreeVisitor

enterPseudoElement

public boolean enterPseudoElement(CssPseudoElementNode node)

Ensures that the new pseudo-element notation (::) is not used, because the notation has been introduced in CSS 3.

Specified by:

enterPseudoElement in interface CssTreeVisitor

Overrides:

enterPseudoElement in class DefaultTreeVisitor

enterAttributeSelector

public boolean enterAttributeSelector(CssAttributeSelectorNode node)

Ensures that attribute selectors are valid. If the equal sign is preceded by a special character, only '~' and '|' are allowed. Valid CSS 2.1 examples: [att], [att=val], [att~=val], [att|=val]

Specified by:

enterAttributeSelector in interface CssTreeVisitor

Overrides:

enterAttributeSelector in class DefaultTreeVisitor