javafx.css

Class PseudoClass

java.lang.Object

javafx.css.PseudoClass

public abstract class PseudoClass
extends java.lang.Object

PseudoClass represents one unique pseudo-class state. Introducing a pseudo-class into a JavaFX class only requires that the method javafx.scene.Node#pseudoClassStateChanged(javafx.css.PseudoClass, boolean) be called when the pseudo-class state changes. Typically, the pseudoClassStateChanged method is called from the protected void invalidated() method of one of the property base classes in the javafx.beans.property package.

Note that if a node has a default pseudo-class state, a horizontal orientation for example, pseudoClassStateChanged should be called from the constructor to set the initial state.

The following example would allow "xyzzy" to be used as a pseudo-class in a CSS selector.

  public boolean isMagic() {
       return magic.get();
   }

   public BooleanProperty magicProperty() {
       return magic;
   }

   public BooleanProperty magic =
       new BooleanPropertyBase(false) {

        @Override protected void invalidated() {
           pseudoClassStateChanged(MAGIC_PSEUDO_CLASS. get());
       }

        @Override public Object getBean() {
           return MyControl.this;
       }

        @Override public String getName() {
           return "magic";
       }
   }

   private static final PseudoClass
       MAGIC_PSEUDO_CLASS = PseudoClass.getPseudoClass("xyzzy");
 

Since:

JavaFX 8.0

Constructor Summary

Constructors

Constructor and Description
PseudoClass()

Method Summary

Modifier and Type	Method and Description
static PseudoClass	getPseudoClass(java.lang.String pseudoClass) There is only one PseudoClass instance for a given pseudoClass.
abstract java.lang.String	getPseudoClassName()

Methods inherited from class java.lang.Object

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

Constructor Detail

PseudoClass

public PseudoClass()

Method Detail

getPseudoClass

public static PseudoClass getPseudoClass(java.lang.String pseudoClass)

There is only one PseudoClass instance for a given pseudoClass.

Parameters:

pseudoClass - the pseudo-class

Returns:

The PseudoClass for the given pseudoClass. Will not return null.

Throws:

java.lang.IllegalArgumentException - if pseudoClass parameter is null or an empty String

getPseudoClassName

public abstract java.lang.String getPseudoClassName()

Returns:

the pseudo-class state