Package de.xima.fc.gui.common.converter

Class HtmlStringTrimConverter

java.lang.Object

de.xima.fc.gui.common.converter.HtmlStringTrimConverter

All Implemented Interfaces:

javax.faces.convert.Converter<String>

public class HtmlStringTrimConverter
extends Object
implements javax.faces.convert.Converter<String>

A converter that trims empty HTML strings to the empty string. Useful e.g. for rich text editors that may return HTML such strings such as <p></p> that represent no content.

It is quite hard to define what an empty HTML string is. For example, <p class="foo"></p> has no text content, but it does have a class attribute that may be used by CSS or JavaScript. This converter considers the following HTML strings as empty:

• When the value is null, null is returned. If the string is empty or blank, it is considered empty. Otherwise, the strings is considered empty if all of the following hold:
• The string is a valid HTML string.
• The text content of the HTML is empty or blank.
• All nodes in the DOM tree contain no attributes, except for possibly style.

Since:

8.2.0

Field Summary

Fields inherited from interface javax.faces.convert.Converter

DATETIMECONVERTER_DEFAULT_TIMEZONE_IS_SYSTEM_TIMEZONE_PARAM_NAME

Constructor Summary

Constructors

Constructor	Description
HtmlStringTrimConverter()

Method Summary

Modifier and Type	Method	Description
String	getAsObject(javax.faces.context.FacesContext context, javax.faces.component.UIComponent component, String value)
String	getAsString(javax.faces.context.FacesContext context, javax.faces.component.UIComponent cmp, String value)

Methods inherited from class java.lang.Object

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

Constructor Detail

HtmlStringTrimConverter

public HtmlStringTrimConverter()

Method Detail

getAsObject

public String getAsObject(javax.faces.context.FacesContext context,
                          javax.faces.component.UIComponent component,
                          String value)

Specified by:

getAsObject in interface javax.faces.convert.Converter<String>

getAsString

public String getAsString(javax.faces.context.FacesContext context,
                          javax.faces.component.UIComponent cmp,
                          String value)

Specified by:

getAsString in interface javax.faces.convert.Converter<String>