Package org.opencms.gwt.client

Class CmsMediaQueryRuleManager

java.lang.Object

org.opencms.gwt.client.CmsMediaQueryRuleManager

public class CmsMediaQueryRuleManager
extends Object

Singleton class that evaluates, and keeps track of changes for, a fixed set of media queries and sets CSS classes on the body element depending on which of the media queries match.

Field Summary

Fields

Modifier and Type	Field	Description
protected static CmsMediaQueryRuleManager	instance	The instance.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	CmsMediaQueryRuleManager()	Initializes the rules.

Method Summary

Modifier and Type	Method	Description
void	addRule(String cssClass, String mediaQueryText)	Installs a new media query rule.
static CmsMediaQueryRuleManager	get()	Gets the instance.
static void	initialize()	Initializes the manager and sets up the rules.
void	updateBodyClass(String cssClass, boolean enabled)	Adds or removes a CSS class from the body.

Methods inherited from class java.lang.Object

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

Field Details

instance

protected static CmsMediaQueryRuleManager instance

The instance.

Constructor Details

CmsMediaQueryRuleManager

protected CmsMediaQueryRuleManager()

Initializes the rules.

Method Details

get

public static CmsMediaQueryRuleManager get()

Gets the instance.

Returns:

the instance

initialize

public static void initialize()

Initializes the manager and sets up the rules.

addRule

public void addRule(String cssClass,
 String mediaQueryText)

Installs a new media query rule.

Parameters:

cssClass - the CSS class to add if the media query matches

mediaQueryText - the text of the media query

updateBodyClass

public void updateBodyClass(String cssClass,
 boolean enabled)

Adds or removes a CSS class from the body.

Parameters:

cssClass - the CSS class

enabled - true if the class should be added, false to remove it