elemental.html

Interface MediaQueryList

All Known Implementing Classes:

JsMediaQueryList

public interface MediaQueryList

DRAFT

This page is not complete.

A MediaQueryList object maintains a list of media queries on a document , and handles sending notifications to listeners when the media queries on the document change.

This makes it possible to observe a document to detect when its media queries change, instead of polling the values periodically, if you need to programmatically detect changes to the values of media queries on a document.

Method Summary

Modifier and Type	Method and Description
void	addListener(MediaQueryListListener listener) Adds a new listener to the media query list.
String	getMedia() The serialized media query list.
boolean	isMatches() true if the document currently matches the media query list; otherwise false.
void	removeListener(MediaQueryListListener listener)

Method Detail

isMatches

boolean isMatches()

true if the document currently matches the media query list; otherwise false. Read only.

getMedia

String getMedia()

The serialized media query list.

addListener

void addListener(MediaQueryListListener listener)

Adds a new listener to the media query list. If the specified listener is already in the list, this method has no effect.

Parameters

listener

The MediaQueryListListener to invoke when the media query's evaluated result changes.

removeListener

void removeListener(MediaQueryListListener listener)

Removes a listener from the media query list. Does nothing if the specified listener isn't already in the list.

Parameters

listener

The MediaQueryListListener to stop calling on changes to the media query's evaluated result.