My JSF Books/Videos My JSF Tutorials OmniFaces/JSF PPTs
JSF 2.3 Tutorial
JSF Caching Tutorial
JSF Navigation Tutorial
JSF Scopes Tutorial
JSF Page Author Beginner's Guide
OmniFaces 2.3 Tutorial Examples
OmniFaces 2.2 Tutorial Examples
JSF Events Tutorial
OmniFaces Callbacks Usages
JSF State Tutorial
JSF and Design Patterns
JSF 2.3 New Features (2.3-m04)
Introduction to OmniFaces
25+ Reasons to use OmniFaces in JSF
OmniFaces Validators
OmniFaces Converters
JSF Design Patterns
Mastering OmniFaces
Reusable and less-verbose JSF code

My JSF Resources ...

Java EE Guardian
Member of JCG Program
Member MVB DZone
Blog curated on ZEEF
OmniFaces is an utility library for JSF, including PrimeFaces, RichFaces, ICEfaces ...

.

.

.

.

.

.

.

.


[OmniFaces Utilities] - Find the right JSF OmniFaces 2 utilities methods/functions

Search on blog

Petition by Java EE Guardians

Twitter

miercuri, 4 februarie 2015

Adding CSS and JS resources programmatically

In this post you can see how to programmatically load resource in a JSF page. Per example, the JSF page can look like this - notice that we don't load any resources via JSF tags:
...
<h:head>
 <title></title>
</h:head>
<h:body>
 <h:form>
  <h:commandButton value="Switch to Rafa Style" action="#{resBean.addResourcesAction()}"/>
 </h:form>
 <div id="wrapper" style="width:100%; text-align:center">
  <h:graphicImage library="default" name="img/rafa.png"/>
  <!-- <h:graphicImage value="#{resource['default:img/rafa.png']}"/> -->
 </div>
</h:body>
...

Now, when the button Switch to Rafa Style is pressed, a managed bean will supply a CSS file and a JS file, like this:

 public void addResourcesAction() {
  FacesContext facesContext = FacesContext.getCurrentInstance();
  UIOutput rafa_css = new UIOutput();
  UIOutput rafa_js = new UIOutput();

  rafa_css.setRendererType("javax.faces.resource.Stylesheet");
  rafa_css.getAttributes().put("library", "default");
  rafa_css.getAttributes().put("name", "css/rafa.css");
  rafa_js.setRendererType("javax.faces.resource.Script");
  rafa_js.getAttributes().put("library", "default");
  rafa_js.getAttributes().put("name", "js/rafa.js");

  facesContext.getViewRoot().addComponentResource(facesContext, rafa_css, "head");
  facesContext.getViewRoot().addComponentResource(facesContext, rafa_js, "head");
  }

GitHub Complete Code [AddResourcesProgrammatically]

Niciun comentariu :

Trimiteți un comentariu

JSF BOOKS COLLECTION

Postări populare

OmniFaces/JSF Fans

Visitors Starting 4 September 2015

Locations of Site Visitors