Package com.helger.css.decl.visit

Interface ICSSVisitor

All Known Implementing Classes:
CSSVisitorForUrl, DefaultCSSVisitor
public interface ICSSVisitor
Interface for visiting different elements of a CSS domain object.
Author:
Philip Helger
See Also:

  • Method Details

    • begin

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

    • onImport

      void onImport(@Nonnull CSSImportRule aImportRule)
      Called on CSS import statement
      Parameters:
      aImportRule - Other imported CSS. Never null.

    • onNamespace

      void onNamespace(@Nonnull CSSNamespaceRule aNamespaceRule)
      Called on CSS namespace statement
      Parameters:
      aNamespaceRule - The namespace rule. Never null.

    • onDeclaration

      void onDeclaration(@Nonnull CSSDeclaration aDeclaration)
      Called for each declaration
      Parameters:
      aDeclaration - The declaration. Never null.

    • onBeginStyleRule

      void onBeginStyleRule(@Nonnull CSSStyleRule aStyleRule)
      Called when a style rule starts.
      Note: contained declarations are handled by onDeclaration(CSSDeclaration)
      Parameters:
      aStyleRule - The style rule. Never null.

    • onStyleRuleSelector

      void onStyleRuleSelector(@Nonnull CSSSelector aSelector)
      Called for each selector of a style rule
      Parameters:
      aSelector - The style rule selector. Never null.

    • onEndStyleRule

      void onEndStyleRule(@Nonnull CSSStyleRule aStyleRule)
      Called when a style rule ends.
      Parameters:
      aStyleRule - The style rule. Never null.

    • onBeginPageRule

      void onBeginPageRule(@Nonnull CSSPageRule aPageRule)
      Called when a page rule starts.
      Note: contained declarations are handled by onDeclaration(CSSDeclaration), contained page margin blocks are handled with onBeginPageMarginBlock(CSSPageMarginBlock) and onEndPageMarginBlock(CSSPageMarginBlock).
      Parameters:
      aPageRule - The page rule. Never null.

    • onBeginPageMarginBlock

      void onBeginPageMarginBlock(@Nonnull CSSPageMarginBlock aPageMarginBlock)
      Called when a page margin block starts.
      Note: contained declarations are handled by onDeclaration(CSSDeclaration)
      Parameters:
      aPageMarginBlock - The page margin block. Never null.

    • onEndPageMarginBlock

      void onEndPageMarginBlock(@Nonnull CSSPageMarginBlock aPageMarginBlock)
      Called when a page margin block ends.
      Parameters:
      aPageMarginBlock - The page margin block. Never null.

    • onEndPageRule

      void onEndPageRule(@Nonnull CSSPageRule aPageRule)
      Called when a page rule ends.
      Parameters:
      aPageRule - The page rule. Never null.

    • onBeginFontFaceRule

      void onBeginFontFaceRule(@Nonnull CSSFontFaceRule aFontFaceRule)
      Called when a font-face rule starts.
      Note: contained declarations are handled by onDeclaration(CSSDeclaration)
      Parameters:
      aFontFaceRule - The font-face rule. Never null.

    • onEndFontFaceRule

      void onEndFontFaceRule(@Nonnull CSSFontFaceRule aFontFaceRule)
      Called when a font-face rule ends.
      Parameters:
      aFontFaceRule - The font-face rule. Never null.

    • onBeginMediaRule

      void onBeginMediaRule(@Nonnull CSSMediaRule aMediaRule)
      Called when a media rule starts.
      Note: contained declarations are handled by onDeclaration(CSSDeclaration)
      Parameters:
      aMediaRule - The media rule. Never null.

    • onEndMediaRule

      void onEndMediaRule(@Nonnull CSSMediaRule aMediaRule)
      Called when a media rule ends.
      Parameters:
      aMediaRule - The media rule. Never null.

    • onBeginKeyframesRule

      void onBeginKeyframesRule(@Nonnull CSSKeyframesRule aKeyframesRule)
      Called when a keyframes rule starts.
      Note: contained declarations are handled by onDeclaration(CSSDeclaration)
      Parameters:
      aKeyframesRule - The keyframes rule. Never null.

    • onBeginKeyframesBlock

      void onBeginKeyframesBlock(@Nonnull CSSKeyframesBlock aKeyframesBlock)
      Called when a keyframes block starts.
      Parameters:
      aKeyframesBlock - The keyframes rule block. Never null.

    • onEndKeyframesBlock

      void onEndKeyframesBlock(@Nonnull CSSKeyframesBlock aKeyframesBlock)
      Called when a keyframes block ends.
      Parameters:
      aKeyframesBlock - The keyframes rule block. Never null.

    • onEndKeyframesRule

      void onEndKeyframesRule(@Nonnull CSSKeyframesRule aKeyframesRule)
      Called when a keyframes rule ends.
      Parameters:
      aKeyframesRule - The keyframes rule. Never null.

    • onBeginViewportRule

      void onBeginViewportRule(@Nonnull CSSViewportRule aViewportRule)
      Called when a viewport rule starts.
      Parameters:
      aViewportRule - The viewport rule. Never null.

    • onEndViewportRule

      void onEndViewportRule(@Nonnull CSSViewportRule aViewportRule)
      Called when a viewport rule ends.
      Parameters:
      aViewportRule - The viewport rule. Never null.

    • onBeginSupportsRule

      void onBeginSupportsRule(@Nonnull CSSSupportsRule aSupportsRule)
      Called when a supports rule starts.
      Parameters:
      aSupportsRule - The supports rule. Never null.

    • onEndSupportsRule

      void onEndSupportsRule(@Nonnull CSSSupportsRule aSupportsRule)
      Called when a supports rule ends.
      Parameters:
      aSupportsRule - The supports rule. Never null.

    • onUnknownRule

      void onUnknownRule(@Nonnull CSSUnknownRule aUnknownRule)
      Called when an unknown rule is encountered.
      Parameters:
      aUnknownRule - The unknown rule. Never null.

    • end

      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!