Package com.vaadin.flow.dom.impl

Class ClassAttributeHandler

java.lang.Object

com.vaadin.flow.dom.impl.CustomAttribute

com.vaadin.flow.dom.impl.ClassAttributeHandler

All Implemented Interfaces:

Serializable

public class ClassAttributeHandler
extends CustomAttribute

Emulates the class attribute by delegating to Element.getClassList().

For internal use only. May be renamed or removed in a future release.

Since:

1.0

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
ClassAttributeHandler()

Method Summary

Modifier and Type	Method	Description
String	getAttribute(Element element)	Gets the value that should be returned by Element.getAttribute(String) for this attribute.
boolean	hasAttribute(Element element)	Checks what Element.hasAttribute(String) should return for this attribute.
void	removeAttribute(Element element)	Removes the attribute when Element.removeAttribute(String) is called for this attribute.
void	setAttribute(Element element, String value)	Sets the value when Element.setAttribute(String, String) is called for this attribute.

Methods inherited from class com.vaadin.flow.dom.impl.CustomAttribute

get, getNames

Methods inherited from class java.lang.Object

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

Constructor Details

ClassAttributeHandler

public ClassAttributeHandler()

Method Details

hasAttribute

public boolean hasAttribute(Element element)

Description copied from class: CustomAttribute

Checks what Element.hasAttribute(String) should return for this attribute.

Specified by:

hasAttribute in class CustomAttribute

Parameters:

element - the element to check, not null

Returns:

true if the element has a value for this attribute, otherwise false

getAttribute

public String getAttribute(Element element)

Description copied from class: CustomAttribute

Gets the value that should be returned by Element.getAttribute(String) for this attribute.

Specified by:

getAttribute in class CustomAttribute

Parameters:

element - the element to check, not null

Returns:

the attribute value

setAttribute

public void setAttribute(Element element,
 String value)

Description copied from class: CustomAttribute

Sets the value when Element.setAttribute(String, String) is called for this attribute.

Specified by:

setAttribute in class CustomAttribute

Parameters:

element - the element for which to set the value, not null

value - the new attribute value, not null

removeAttribute

public void removeAttribute(Element element)

Description copied from class: CustomAttribute

Removes the attribute when Element.removeAttribute(String) is called for this attribute.

Specified by:

removeAttribute in class CustomAttribute

Parameters:

element - the element for which to remove the attribute, not null