public interface CSSStyleDeclaration
CSSStyleDeclaration
interface represents a single CSS declaration block. This interface may be used to determine the style properties currently set in a block or to set style properties explicitly within the block. While an implementation may not recognize all CSS properties within a CSS declaration block, it is expected to provide access to all specified properties in the style sheet through the CSSStyleDeclaration
interface. Furthermore, implementations that support a specific level of CSS should correctly handle CSS shorthand properties for that level. For a further discussion of shorthand properties, see the CSS2Properties
interface.
This interface is also used to provide a read-only access to the computed values of an element. See also the ViewCSS
interface. The CSS Object Model doesn't provide an access to the specified or actual values of the CSS cascade.
See also the Document Object Model (DOM) Level 2 Style Specification.
Modifier and Type | Method | Description |
---|---|---|
String |
getCssText() |
The parsable textual representation of the declaration block (excluding the surrounding curly braces). |
int |
getLength() |
The number of properties that have been explicitly set in this declaration block. |
CSSRule |
getParentRule() |
The CSS rule that contains this declaration block or null if this CSSStyleDeclaration is not attached to a CSSRule . |
CSSValue |
getPropertyCSSValue |
Used to retrieve the object representation of the value of a CSS property if it has been explicitly set within this declaration block. |
String |
getPropertyPriority |
Used to retrieve the priority of a CSS property (e.g. the "important" qualifier) if the priority has been explicitly set in this declaration block. |
String |
getPropertyValue |
Used to retrieve the value of a CSS property if it has been explicitly set within this declaration block. |
String |
item |
Used to retrieve the properties that have been explicitly set in this declaration block. |
String |
removeProperty |
Used to remove a CSS property if it has been explicitly set within this declaration block. |
void |
setCssText |
The parsable textual representation of the declaration block (excluding the surrounding curly braces). |
void |
setProperty |
Used to set a property value and priority within this declaration block. |
String getCssText()
void setCssText(String cssText) throws DOMException
DOMException
- SYNTAX_ERR: Raised if the specified CSS string value has a syntax error and is unparsable. String getPropertyValue(String propertyName)
propertyName
- The name of the CSS property. See the CSS property index.CSSValue getPropertyCSSValue(String propertyName)
null
if the property is a shorthand property. Shorthand property values can only be accessed and modified as strings, using the getPropertyValue
and setProperty
methods.propertyName
- The name of the CSS property. See the CSS property index.null
if the property has not been set.String removeProperty(String propertyName) throws DOMException
propertyName
- The name of the CSS property. See the CSS property index.DOMException
- NO_MODIFICATION_ALLOWED_ERR: Raised if this declaration is readonly or the property is readonly.String getPropertyPriority(String propertyName)
"important"
qualifier) if the priority has been explicitly set in this declaration block.propertyName
- The name of the CSS property. See the CSS property index."important"
) if the property has been explicitly set in this declaration block and has a priority specified. The empty string otherwise.void setProperty(String propertyName, String value, String priority) throws DOMException
setProperty
permits to modify a property or add a new one in the declaration block. Any call to this method may modify the order of properties in the item
method.propertyName
- The name of the CSS property. See the CSS property index.value
- The new value of the property.priority
- The new priority of the property (e.g. "important"
) or the empty string if none.DOMException
- SYNTAX_ERR: Raised if the specified value has a syntax error and is unparsable. int getLength()
String item(int index)
index
- Index of the property name to retrieve.CSSRule getParentRule()
null
if this CSSStyleDeclaration
is not attached to a CSSRule
.
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https://docs.oracle.com/en/java/javase/21/docs/api/jdk.xml.dom/org/w3c/dom/css/CSSStyleDeclaration.html