All Known Subinterfaces:

CssTreeVisitor

All Known Implementing Classes:

AbbreviatePositionalValues, AutoExpandBrowserPrefix, BiDiFlipper, CheckDependencyNodes, CheckMissingRequire, CollectConstantDefinitions, CollectMixinDefinitions, CollectProvideNamespaces, ColorValueOptimizer, CompactPrintingVisitor, CreateComponentNodes, CreateConditionalNodes, CreateConstantReferences, CreateDefinitionNodes, CreateForLoopNodes, CreateMixins, CreateVendorPrefixedKeyframes, CssClassRenaming, DefaultTreeVisitor, DefinitionPrintingVisitor, DisallowDuplicateDeclarations, EliminateConditionalNodes, EliminateEmptyRulesetNodes, EliminateUnitsFromZeroNumericValues, EliminateUselessRulesetNodes, EvaluateCompileConstants, FixupFontDeclarations, HandleMissingConstantDefinitions, HandleUnknownAtRuleNodes, HasConditionalNodes, MapChunkAwareNodesToChunk, MarkDefaultDefinitions, MarkNonFlippableNodes, MarkRemovableRulesetNodes, MarkRemovableRulesetNodesForChunk, MergeAdjacentRulesetNodesWithSameDeclarations, MergeAdjacentRulesetNodesWithSameSelector, PrettyPrintingVisitor, ProcessComponents, ProcessKeyframes, ProcessRefiners, RelocateDefaultComments, RemoveDefaultDeclarations, RemoveEmptyValues, RemoveVendorSpecificProperties, ReplaceConstantReferences, ReplaceMixins, ResolveCustomFunctionNodes, ResolveCustomFunctionNodesForChunks, SExprPrintingVisitor, SkippingTreeVisitor, SplitRulesetNodes, StrictCss2, StrictCss3, StrictCssBase, TemplateCompactPrintingVisitor, UnrollLoops, ValidatePropertyValues, VerifyRecognizedProperties, WarnOnCustomProperty
```
public interface AtRuleHandler
```
A handler for at rules.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`enterCharSet(CssCharSetNode node)`	Called before visiting a `CssCharSetNode`'s sub trees
`boolean`	`enterComponent(CssComponentNode node)`	Called before visiting a `CssComponentNode`'s sub trees
`boolean`	`enterConditionalRule(CssConditionalRuleNode node)`
`boolean`	`enterDefinition(CssDefinitionNode node)`
`boolean`	`enterFontFace(CssFontFaceNode node)`	Called before visiting a `CssFontFaceNode`'s sub trees
`boolean`	`enterImportRule(CssImportRuleNode node)`	Called before visiting a `CssImportRuleNode`'s sub trees
`boolean`	`enterKeyframesRule(CssKeyframesNode node)`	Called before visiting a `CssKeyframesNode`'s sub trees
`boolean`	`enterMediaRule(CssMediaRuleNode node)`	Called before visiting a `CssMediaRuleNode`'s sub trees
`boolean`	`enterMediaTypeListDelimiter(CssNodesListNode<? extends CssNode> node)`	Called between adjacent nodes in a media type list
`boolean`	`enterMixin(CssMixinNode node)`	Called before visiting a `CssMixinNode`'s sub trees
`boolean`	`enterMixinDefinition(CssMixinDefinitionNode node)`	Called before visiting a `CssMixinDefinitionNode`'s sub trees
`boolean`	`enterPageRule(CssPageRuleNode node)`	Called before visiting a `CssPageRuleNode`'s sub trees
`boolean`	`enterPageSelector(CssPageSelectorNode node)`	Called before visiting a `CssPageSelectorNode`'s sub trees
`boolean`	`enterProvideNode(CssProvideNode node)`	Called before visiting a `CssProvideNode`'s sub trees
`boolean`	`enterRequireNode(CssRequireNode node)`	Called before visiting a `CssRequireNode`'s sub trees
`boolean`	`enterUnknownAtRule(CssUnknownAtRuleNode node)`	Called before visiting a `CssUnknownAtRuleNode`'s sub trees
`void`	`leaveCharSet(CssCharSetNode node)`	Called after visiting a `CssCharSetNode`'s sub trees
`void`	`leaveComponent(CssComponentNode node)`	Called after visiting a `CssComponentNode`'s sub trees
`void`	`leaveConditionalRule(CssConditionalRuleNode node)`	Called after visiting a `CssConditionalRuleNode`'s sub trees
`void`	`leaveDefinition(CssDefinitionNode node)`	Called after visiting a `CssDefinitionNode`'s sub trees
`void`	`leaveFontFace(CssFontFaceNode node)`	Called after visiting a `CssFontFaceNode`'s sub trees
`void`	`leaveImportRule(CssImportRuleNode node)`	Called after visiting a `CssImportRuleNode`'s sub trees
`void`	`leaveKeyframesRule(CssKeyframesNode node)`	Called after visiting a `CssKeyframesNode`'s sub trees
`void`	`leaveMediaRule(CssMediaRuleNode node)`	Called after visiting a `CssMediaRuleNode`'s sub trees
`void`	`leaveMediaTypeListDelimiter(CssNodesListNode<? extends CssNode> node)`	Called between adjacent nodes in a media type list
`void`	`leaveMixin(CssMixinNode node)`	Called after visiting a `CssMixinNode`'s sub trees
`void`	`leaveMixinDefinition(CssMixinDefinitionNode node)`	Called after visiting a `CssMixinDefinitionNode`'s sub trees
`void`	`leavePageRule(CssPageRuleNode node)`	Called after visiting a `CssPageRuleNode`'s sub trees
`void`	`leavePageSelector(CssPageSelectorNode node)`	Called after visiting a `CssPageSelectorNode`'s sub trees
`void`	`leaveProvideNode(CssProvideNode node)`	Called after visiting a `CssProvideNode`'s sub trees
`void`	`leaveRequireNode(CssRequireNode node)`	Called after visiting a `CssRequireNode`'s sub trees
`void`	`leaveUnknownAtRule(CssUnknownAtRuleNode node)`	Called after visiting a `CssUnknownAtRuleNode`'s sub trees

- Method Detail
  - enterConditionalRule
```
boolean enterConditionalRule(CssConditionalRuleNode node)
```
    Parameters:
    
    node - node
    
    Returns:
    
    true if the contents of the rule should be visited, false otherwise. leaveConditionalRule(CssConditionalRuleNode) will still be called.
  - leaveConditionalRule
```
void leaveConditionalRule(CssConditionalRuleNode node)
```
    Called after visiting a CssConditionalRuleNode's sub trees
    
    Parameters:
    
    node - node
  - enterImportRule
```
boolean enterImportRule(CssImportRuleNode node)
```
    Called before visiting a CssImportRuleNode's sub trees
    
    Parameters:
    
    node - node
  - leaveImportRule
```
void leaveImportRule(CssImportRuleNode node)
```
    Called after visiting a CssImportRuleNode's sub trees
    
    Parameters:
    
    node - node
  - enterMediaRule
```
boolean enterMediaRule(CssMediaRuleNode node)
```
    Called before visiting a CssMediaRuleNode's sub trees
    
    Parameters:
    
    node - node
  - leaveMediaRule
```
void leaveMediaRule(CssMediaRuleNode node)
```
    Called after visiting a CssMediaRuleNode's sub trees
    
    Parameters:
    
    node - node
  - enterPageRule
```
boolean enterPageRule(CssPageRuleNode node)
```
    Called before visiting a CssPageRuleNode's sub trees
    
    Parameters:
    
    node - node
  - leavePageRule
```
void leavePageRule(CssPageRuleNode node)
```
    Called after visiting a CssPageRuleNode's sub trees
    
    Parameters:
    
    node - node
  - enterPageSelector
```
boolean enterPageSelector(CssPageSelectorNode node)
```
    Called before visiting a CssPageSelectorNode's sub trees
    
    Parameters:
    
    node - node
  - leavePageSelector
```
void leavePageSelector(CssPageSelectorNode node)
```
    Called after visiting a CssPageSelectorNode's sub trees
    
    Parameters:
    
    node - node
  - enterFontFace
```
boolean enterFontFace(CssFontFaceNode node)
```
    Called before visiting a CssFontFaceNode's sub trees
    
    Parameters:
    
    node - node
  - leaveFontFace
```
void leaveFontFace(CssFontFaceNode node)
```
    Called after visiting a CssFontFaceNode's sub trees
    
    Parameters:
    
    node - node
  - enterCharSet
```
boolean enterCharSet(CssCharSetNode node)
```
    Called before visiting a CssCharSetNode's sub trees
    
    Parameters:
    
    node - node
  - leaveCharSet
```
void leaveCharSet(CssCharSetNode node)
```
    Called after visiting a CssCharSetNode's sub trees
    
    Parameters:
    
    node - node
  - enterDefinition
```
boolean enterDefinition(CssDefinitionNode node)
```
    Parameters:
    
    node - node
    
    Returns:
    
    true if the contents of the rule should be visited, false otherwise. leaveDefinition(CssDefinitionNode) will still be called.
  - leaveDefinition
```
void leaveDefinition(CssDefinitionNode node)
```
    Called after visiting a CssDefinitionNode's sub trees
    
    Parameters:
    
    node - node
  - enterUnknownAtRule
```
boolean enterUnknownAtRule(CssUnknownAtRuleNode node)
```
    Called before visiting a CssUnknownAtRuleNode's sub trees
    
    Parameters:
    
    node - node
  - leaveUnknownAtRule
```
void leaveUnknownAtRule(CssUnknownAtRuleNode node)
```
    Called after visiting a CssUnknownAtRuleNode's sub trees
  - enterMediaTypeListDelimiter
```
boolean enterMediaTypeListDelimiter(CssNodesListNode<? extends CssNode> node)
```
    Called between adjacent nodes in a media type list
    
    Parameters:
    
    node - node
  - leaveMediaTypeListDelimiter
```
void leaveMediaTypeListDelimiter(CssNodesListNode<? extends CssNode> node)
```
    Called between adjacent nodes in a media type list
    
    Parameters:
    
    node - node
  - enterComponent
```
boolean enterComponent(CssComponentNode node)
```
    Called before visiting a CssComponentNode's sub trees
    
    Parameters:
    
    node - node
  - leaveComponent
```
void leaveComponent(CssComponentNode node)
```
    Called after visiting a CssComponentNode's sub trees
    
    Parameters:
    
    node - node
  - enterKeyframesRule
```
boolean enterKeyframesRule(CssKeyframesNode node)
```
    Called before visiting a CssKeyframesNode's sub trees
    
    Parameters:
    
    node - node
  - leaveKeyframesRule
```
void leaveKeyframesRule(CssKeyframesNode node)
```
    Called after visiting a CssKeyframesNode's sub trees
    
    Parameters:
    
    node - node
  - enterMixinDefinition
```
boolean enterMixinDefinition(CssMixinDefinitionNode node)
```
    Called before visiting a CssMixinDefinitionNode's sub trees
    
    Parameters:
    
    node - node
  - leaveMixinDefinition
```
void leaveMixinDefinition(CssMixinDefinitionNode node)
```
    Called after visiting a CssMixinDefinitionNode's sub trees
    
    Parameters:
    
    node - node
  - enterMixin
```
boolean enterMixin(CssMixinNode node)
```
    Called before visiting a CssMixinNode's sub trees
    
    Parameters:
    
    node - node
  - leaveMixin
```
void leaveMixin(CssMixinNode node)
```
    Called after visiting a CssMixinNode's sub trees
    
    Parameters:
    
    node - node
  - enterProvideNode
```
boolean enterProvideNode(CssProvideNode node)
```
    Called before visiting a CssProvideNode's sub trees
    
    Parameters:
    
    node - node
  - leaveProvideNode
```
void leaveProvideNode(CssProvideNode node)
```
    Called after visiting a CssProvideNode's sub trees
    
    Parameters:
    
    node - node
  - enterRequireNode
```
boolean enterRequireNode(CssRequireNode node)
```
    Called before visiting a CssRequireNode's sub trees
    
    Parameters:
    
    node - node
  - leaveRequireNode
```
void leaveRequireNode(CssRequireNode node)
```
    Called after visiting a CssRequireNode's sub trees
    
    Parameters:
    
    node - node

Interface AtRuleHandler

Method Summary

Method Detail

enterConditionalRule

leaveConditionalRule

enterImportRule

leaveImportRule

enterMediaRule

leaveMediaRule

enterPageRule

leavePageRule

enterPageSelector

leavePageSelector

enterFontFace

leaveFontFace

enterCharSet

leaveCharSet

enterDefinition

leaveDefinition

enterUnknownAtRule

leaveUnknownAtRule

enterMediaTypeListDelimiter

leaveMediaTypeListDelimiter

enterComponent

leaveComponent

enterKeyframesRule

leaveKeyframesRule

enterMixinDefinition

leaveMixinDefinition

enterMixin

leaveMixin

enterProvideNode

leaveProvideNode

enterRequireNode

leaveRequireNode