Interface CSSRule

All Known Subinterfaces:
CSSCharsetRule, CSSFontFaceRule, CSSImportRule, CSSMediaRule, CSSPageRule, CSSStyleRule, CSSUnknownRule 
public interface CSSRule
The CSSRule interface is the abstract base interface for any type of CSS statement. This includes both rule sets and at-rules. An implementation is expected to preserve all rules specified in a CSS style sheet, even if the rule is not recognized by the parser. Unrecognized rules are represented using the CSSUnknownRule interface.

See also the Document Object Model (DOM) Level 2 Style Specification.

Since:
1.4, DOM Level 2

Field Summary

Modifier and Type Field Description
static final short CHARSET_RULE
The rule is a CSSCharsetRule.
static final short FONT_FACE_RULE
The rule is a CSSFontFaceRule.
static final short IMPORT_RULE
The rule is a CSSImportRule.
static final short MEDIA_RULE
The rule is a CSSMediaRule.
static final short PAGE_RULE
The rule is a CSSPageRule.
static final short STYLE_RULE
The rule is a CSSStyleRule.
static final short UNKNOWN_RULE
The rule is a CSSUnknownRule.

Method Summary

Modifier and Type Method Description
String getCssText()
The parsable textual representation of the rule.
CSSRule getParentRule()
If this rule is contained inside another rule (e.g. a style rule inside an @media block), this is the containing rule.
CSSStyleSheet getParentStyleSheet()
The style sheet that contains this rule.
short getType()
The type of the rule, as defined above.
void setCssText(String cssText)
The parsable textual representation of the rule.

Field Details

UNKNOWN_RULE

static final short UNKNOWN_RULE
The rule is a CSSUnknownRule.
See Also:

STYLE_RULE

static final short STYLE_RULE
The rule is a CSSStyleRule.
See Also:

CHARSET_RULE

static final short CHARSET_RULE
The rule is a CSSCharsetRule.
See Also:

IMPORT_RULE

static final short IMPORT_RULE
The rule is a CSSImportRule.
See Also:

MEDIA_RULE

static final short MEDIA_RULE
The rule is a CSSMediaRule.
See Also:

FONT_FACE_RULE

static final short FONT_FACE_RULE
The rule is a CSSFontFaceRule.
See Also:

PAGE_RULE

static final short PAGE_RULE
The rule is a CSSPageRule.
See Also:

Method Details

getType

short getType()
The type of the rule, as defined above. The expectation is that binding-specific casting methods can be used to cast down from an instance of the CSSRule interface to the specific derived interface implied by the type.

getCssText

String getCssText()
The parsable textual representation of the rule. This reflects the current state of the rule and not its initial value.

setCssText

void setCssText(String cssText) throws DOMException
The parsable textual representation of the rule. This reflects the current state of the rule and not its initial value.
Throws:
DOMException - SYNTAX_ERR: Raised if the specified CSS string value has a syntax error and is unparsable.
INVALID_MODIFICATION_ERR: Raised if the specified CSS string value represents a different type of rule than the current one.
HIERARCHY_REQUEST_ERR: Raised if the rule cannot be inserted at this point in the style sheet.
NO_MODIFICATION_ALLOWED_ERR: Raised if the rule is readonly.

getParentStyleSheet

CSSStyleSheet getParentStyleSheet()
The style sheet that contains this rule.

getParentRule

CSSRule getParentRule()
If this rule is contained inside another rule (e.g. a style rule inside an @media block), this is the containing rule. If this rule is not nested inside any other rules, this returns null.

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https://docs.oracle.com/en/java/javase/17/docs/api/jdk.xml.dom/org/w3c/dom/css/CSSRule.html