Primefaces Colorpicker

by Online Tutorials Library July 14, 2022

PrimeFaces ColorPicker

It is an input component with a color palette. It allows us to select and reselect color in web application. We can use it in our JSF application to get color as user input.

PrimeFaces provides <p:colorPicker> component to create ColorPicker in the web application. It has various attributes that are tabled below.

ColorPicker Attributes

Attribute	Default value	Type	Description
id	null	String	It is an unique identifier of the component
value	null	Object	It is used to set value of the component.
required	false	Boolean	It is used to mark component as required.
valueChangeListener	null	ValueChangeListener	It is a method binding expression that refers to a method for handling a valuchangeevent.
requiredMessage	null	String	It is used to set message to be displayed when required field validation fails.
validatorMessage	null	String	It is used to set message to be displayed when validation fields.
mode	popup	String	It is used to set display mode.
style	null	String	It is used to set inline CSS style of the component.

Skinning

Following are the structural style classes that are applicable on the ColorPicker.

Style Class	Applies
.ui-colorpicker	Container element.
.ui-colorpicker_color	Background of gradient.
.ui-colorpicker_hue	Hue element.
.ui-colorpicker_new_color	New color display.
.ui-colorpicker_current_color	Current color display.
.ui-colorpicker-rgb-r	Red input.
.ui-colorpicker-rgb-g	Greed input.

Example

Here, in the following example, we are implementing <p:colorPicker> component. This example contains the following files.

JSF File

// colorPicker.xhtml

  <?xml version=’1.0′ encoding=’UTF-8′ ?>  <!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN””http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>  <html xmlns=”http://www.w3.org/1999/xhtml”  xmlns:h=”http://xmlns.jcp.org/jsf/html”  xmlns:p=”http://primefaces.org/ui”>  <h:head>  <title>Color Picker</title>  </h:head>  <h:body>  <h:form>  <h:panelGrid columns=”2″ cellpadding=”5″ style=”margin-left: 20px”>  <h:outputText value=”Select Color: ” />  <p:colorPicker value=”#{colorPicker.color}” />  </h:panelGrid>  <p:commandButton value=”Submit” style=”margin-left: 20px” />  </h:form>  </h:body>  </html>  

ManagedBean

// ColorPicker.java

  package com.tutoraspire;  import javax.faces.bean.ManagedBean;  @ManagedBean  public class ColorPicker {  private String color;  public String getColor() {  return color;  }  public void setColor(String color) {  this.color = color;  }  }  

Output:

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