Package com.helger.css.decl.visit

Class CSSVisitorForUrl

java.lang.Object

com.helger.css.decl.visit.CSSVisitorForUrl

All Implemented Interfaces:

ICSSVisitor

@NotThreadSafe
public class CSSVisitorForUrl
extends Object
implements ICSSVisitor

A special ICSSVisitor that is used to extract URLs from the available rules and call the ICSSUrlVisitor visitor. This visitor effectively only visits URLs that are in import rules and those in declaration expressions.

Author:

Philip Helger

Constructor Summary

Constructors

Constructor	Description
CSSVisitorForUrl(ICSSUrlVisitor aVisitor)	Constructor

Method Summary

Modifier and Type	Method	Description
void	begin()	Before visiting starts. Note: This is only called for complete style sheets, and not when starting e.g. with a declaration list!
void	end()	After visiting is done. Note: This is only called for complete style sheets, and not when starting e.g. with a declaration list!
ICSSUrlVisitor	getVisitor()
void	onBeginFontFaceRule(CSSFontFaceRule aFontFaceRule)	Called when a font-face rule starts. Note: contained declarations are handled by ICSSVisitor.onDeclaration(CSSDeclaration)
void	onBeginKeyframesBlock(CSSKeyframesBlock aKeyframesBlock)	Called when a keyframes block starts.
void	onBeginKeyframesRule(CSSKeyframesRule aKeyframesRule)	Called when a keyframes rule starts. Note: contained declarations are handled by ICSSVisitor.onDeclaration(CSSDeclaration)
void	onBeginMediaRule(CSSMediaRule aMediaRule)	Called when a media rule starts. Note: contained declarations are handled by ICSSVisitor.onDeclaration(CSSDeclaration)
void	onBeginPageMarginBlock(CSSPageMarginBlock aPageMarginBlock)	Called when a page margin block starts. Note: contained declarations are handled by ICSSVisitor.onDeclaration(CSSDeclaration)
void	onBeginPageRule(CSSPageRule aPageRule)	Called when a page rule starts. Note: contained declarations are handled by ICSSVisitor.onDeclaration(CSSDeclaration), contained page margin blocks are handled with ICSSVisitor.onBeginPageMarginBlock(CSSPageMarginBlock) and ICSSVisitor.onEndPageMarginBlock(CSSPageMarginBlock).
void	onBeginStyleRule(CSSStyleRule aStyleRule)	Called when a style rule starts. Note: contained declarations are handled by ICSSVisitor.onDeclaration(CSSDeclaration)
void	onBeginSupportsRule(CSSSupportsRule aSupportsRule)	Called when a supports rule starts.
void	onBeginViewportRule(CSSViewportRule aViewportRule)	Called when a viewport rule starts.
void	onDeclaration(CSSDeclaration aDeclaration)	Called for each declaration
void	onEndFontFaceRule(CSSFontFaceRule aFontFaceRule)	Called when a font-face rule ends.
void	onEndKeyframesBlock(CSSKeyframesBlock aKeyframesBlock)	Called when a keyframes block ends.
void	onEndKeyframesRule(CSSKeyframesRule aKeyframesRule)	Called when a keyframes rule ends.
void	onEndMediaRule(CSSMediaRule aMediaRule)	Called when a media rule ends.
void	onEndPageMarginBlock(CSSPageMarginBlock aPageMarginBlock)	Called when a page margin block ends.
void	onEndPageRule(CSSPageRule aPageRule)	Called when a page rule ends.
void	onEndStyleRule(CSSStyleRule aStyleRule)	Called when a style rule ends.
void	onEndSupportsRule(CSSSupportsRule aSupportsRule)	Called when a supports rule ends.
void	onEndViewportRule(CSSViewportRule aViewportRule)	Called when a viewport rule ends.
void	onImport(CSSImportRule aImportRule)	Called on CSS import statement
void	onNamespace(CSSNamespaceRule aNamespaceRule)	Called on CSS namespace statement
void	onStyleRuleSelector(CSSSelector aSelector)	Called for each selector of a style rule
void	onUnknownRule(CSSUnknownRule aUnknownRule)	Called when an unknown rule is encountered.

Methods inherited from class java.lang.Object

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

Constructor Detail

CSSVisitorForUrl

public CSSVisitorForUrl(@Nonnull
                        ICSSUrlVisitor aVisitor)

Constructor

Parameters:

aVisitor - The URL visitor to be used. May not be null.

Method Detail

getVisitor

@Nonnull
public ICSSUrlVisitor getVisitor()

Returns:

The URL visitor passed in the constructor. Never null.

begin

public void begin()

Description copied from interface: ICSSVisitor

Before visiting starts.
Note: This is only called for complete style sheets, and not when starting e.g. with a declaration list!

Specified by:

begin in interface ICSSVisitor

onImport

public void onImport(@Nonnull
                     CSSImportRule aImportRule)

Description copied from interface: ICSSVisitor

Called on CSS import statement

Specified by:

onImport in interface ICSSVisitor

Parameters:

aImportRule - Other imported CSS. Never null.

onNamespace

public void onNamespace(@Nonnull
                        CSSNamespaceRule aNamespaceRule)

Description copied from interface: ICSSVisitor

Called on CSS namespace statement

Specified by:

onNamespace in interface ICSSVisitor

Parameters:

aNamespaceRule - The namespace rule. Never null.

onDeclaration

public void onDeclaration(@Nonnull
                          CSSDeclaration aDeclaration)

Description copied from interface: ICSSVisitor

Called for each declaration

Specified by:

onDeclaration in interface ICSSVisitor

Parameters:

aDeclaration - The declaration. Never null.

onBeginStyleRule

public void onBeginStyleRule(@Nonnull
                             CSSStyleRule aStyleRule)

Description copied from interface: ICSSVisitor

Called when a style rule starts.
Note: contained declarations are handled by ICSSVisitor.onDeclaration(CSSDeclaration)

Specified by:

onBeginStyleRule in interface ICSSVisitor

Parameters:

aStyleRule - The style rule. Never null.

onStyleRuleSelector

public void onStyleRuleSelector(@Nonnull
                                CSSSelector aSelector)

Description copied from interface: ICSSVisitor

Called for each selector of a style rule

Specified by:

onStyleRuleSelector in interface ICSSVisitor

Parameters:

aSelector - The style rule selector. Never null.

onEndStyleRule

public void onEndStyleRule(@Nonnull
                           CSSStyleRule aStyleRule)

Description copied from interface: ICSSVisitor

Called when a style rule ends.

Specified by:

onEndStyleRule in interface ICSSVisitor

Parameters:

aStyleRule - The style rule. Never null.

onBeginPageRule

public void onBeginPageRule(@Nonnull
                            CSSPageRule aPageRule)

Description copied from interface: ICSSVisitor

Called when a page rule starts.
Note: contained declarations are handled by ICSSVisitor.onDeclaration(CSSDeclaration), contained page margin blocks are handled with ICSSVisitor.onBeginPageMarginBlock(CSSPageMarginBlock) and ICSSVisitor.onEndPageMarginBlock(CSSPageMarginBlock).

Specified by:

onBeginPageRule in interface ICSSVisitor

Parameters:

aPageRule - The page rule. Never null.

onBeginPageMarginBlock

public void onBeginPageMarginBlock(@Nonnull
                                   CSSPageMarginBlock aPageMarginBlock)

Description copied from interface: ICSSVisitor

Called when a page margin block starts.
Note: contained declarations are handled by ICSSVisitor.onDeclaration(CSSDeclaration)

Specified by:

onBeginPageMarginBlock in interface ICSSVisitor

Parameters:

aPageMarginBlock - The page margin block. Never null.

onEndPageMarginBlock

public void onEndPageMarginBlock(@Nonnull
                                 CSSPageMarginBlock aPageMarginBlock)

Description copied from interface: ICSSVisitor

Called when a page margin block ends.

Specified by:

onEndPageMarginBlock in interface ICSSVisitor

Parameters:

aPageMarginBlock - The page margin block. Never null.

onEndPageRule

public void onEndPageRule(@Nonnull
                          CSSPageRule aPageRule)

Description copied from interface: ICSSVisitor

Called when a page rule ends.

Specified by:

onEndPageRule in interface ICSSVisitor

Parameters:

aPageRule - The page rule. Never null.

onBeginFontFaceRule

public void onBeginFontFaceRule(@Nonnull
                                CSSFontFaceRule aFontFaceRule)

Description copied from interface: ICSSVisitor

Called when a font-face rule starts.
Note: contained declarations are handled by ICSSVisitor.onDeclaration(CSSDeclaration)

Specified by:

onBeginFontFaceRule in interface ICSSVisitor

Parameters:

aFontFaceRule - The font-face rule. Never null.

onEndFontFaceRule

public void onEndFontFaceRule(@Nonnull
                              CSSFontFaceRule aFontFaceRule)

Description copied from interface: ICSSVisitor

Called when a font-face rule ends.

Specified by:

onEndFontFaceRule in interface ICSSVisitor

Parameters:

aFontFaceRule - The font-face rule. Never null.

onBeginMediaRule

public void onBeginMediaRule(@Nonnull
                             CSSMediaRule aMediaRule)

Description copied from interface: ICSSVisitor

Called when a media rule starts.
Note: contained declarations are handled by ICSSVisitor.onDeclaration(CSSDeclaration)

Specified by:

onBeginMediaRule in interface ICSSVisitor

Parameters:

aMediaRule - The media rule. Never null.

onEndMediaRule

public void onEndMediaRule(@Nonnull
                           CSSMediaRule aMediaRule)

Description copied from interface: ICSSVisitor

Called when a media rule ends.

Specified by:

onEndMediaRule in interface ICSSVisitor

Parameters:

aMediaRule - The media rule. Never null.

onBeginKeyframesRule

public void onBeginKeyframesRule(@Nonnull
                                 CSSKeyframesRule aKeyframesRule)

Description copied from interface: ICSSVisitor

Called when a keyframes rule starts.
Note: contained declarations are handled by ICSSVisitor.onDeclaration(CSSDeclaration)

Specified by:

onBeginKeyframesRule in interface ICSSVisitor

Parameters:

aKeyframesRule - The keyframes rule. Never null.

onBeginKeyframesBlock

public void onBeginKeyframesBlock(@Nonnull
                                  CSSKeyframesBlock aKeyframesBlock)

Description copied from interface: ICSSVisitor

Called when a keyframes block starts.

Specified by:

onBeginKeyframesBlock in interface ICSSVisitor

Parameters:

aKeyframesBlock - The keyframes rule block. Never null.

onEndKeyframesBlock

public void onEndKeyframesBlock(@Nonnull
                                CSSKeyframesBlock aKeyframesBlock)

Description copied from interface: ICSSVisitor

Called when a keyframes block ends.

Specified by:

onEndKeyframesBlock in interface ICSSVisitor

Parameters:

aKeyframesBlock - The keyframes rule block. Never null.

onEndKeyframesRule

public void onEndKeyframesRule(@Nonnull
                               CSSKeyframesRule aKeyframesRule)

Description copied from interface: ICSSVisitor

Called when a keyframes rule ends.

Specified by:

onEndKeyframesRule in interface ICSSVisitor

Parameters:

aKeyframesRule - The keyframes rule. Never null.

onBeginViewportRule

public void onBeginViewportRule(@Nonnull
                                CSSViewportRule aViewportRule)

Description copied from interface: ICSSVisitor

Called when a viewport rule starts.

Specified by:

onBeginViewportRule in interface ICSSVisitor

Parameters:

aViewportRule - The viewport rule. Never null.

onEndViewportRule

public void onEndViewportRule(@Nonnull
                              CSSViewportRule aViewportRule)

Description copied from interface: ICSSVisitor

Called when a viewport rule ends.

Specified by:

onEndViewportRule in interface ICSSVisitor

Parameters:

aViewportRule - The viewport rule. Never null.

onBeginSupportsRule

public void onBeginSupportsRule(@Nonnull
                                CSSSupportsRule aSupportsRule)

Description copied from interface: ICSSVisitor

Called when a supports rule starts.

Specified by:

onBeginSupportsRule in interface ICSSVisitor

Parameters:

aSupportsRule - The supports rule. Never null.

onEndSupportsRule

public void onEndSupportsRule(@Nonnull
                              CSSSupportsRule aSupportsRule)

Description copied from interface: ICSSVisitor

Called when a supports rule ends.

Specified by:

onEndSupportsRule in interface ICSSVisitor

Parameters:

aSupportsRule - The supports rule. Never null.

onUnknownRule

public void onUnknownRule(@Nonnull
                          CSSUnknownRule aUnknownRule)

Description copied from interface: ICSSVisitor

Called when an unknown rule is encountered.

Specified by:

onUnknownRule in interface ICSSVisitor

Parameters:

aUnknownRule - The unknown rule. Never null.

end

public void end()

Description copied from interface: ICSSVisitor

After visiting is done.
Note: This is only called for complete style sheets, and not when starting e.g. with a declaration list!

Specified by:

end in interface ICSSVisitor