I am trying to implement pinterest's pinit button using a snippet like the one below:
<h:outputLink value="http://pinterest.com/pin/create/button/" class="pin-it-button" count-layout="horizontal">
<f:param name="url" value="#{beanOne.someMethod}/sometext{prettyContext.requestURL.toURL()}"/>
<f:param name="media" value="#{beanOne.someOtherMethod}/sometext/somemoretext/#{beanTwo.someMethodTwo}-some-text.jpg"/>
<f:param name="description" value="#{beanTwo.someOtherMethodTwo}"/>
<img border="0" src="//assets.pinterest.com/images/PinExt.png" title="Pin It" />
</h:outputLink>
Here are the gotcha's:
the whole markup is created from the combination of four different methods from two different beans as well as some static text
the url parameters obviously need to be urlencoded, therefore I am using f:param inside h:outputLink so that they get urlencoded
the generated a tag needs to have the non-standard count-layout="horizontal" attribute
Now my question is either one of:
How can I inject the count-layout attribute into h:outputLink or the generated anchor tag
Otherwise if I cannot, what would be another non-invasive (I don't want to change the bean methods) way to accomplish the required pinit button markup?
The required markup can be found at http://pinterest.com/about/goodies/ down in the "pin it button for websites" section.
Either use a normal <a> element along with a custom EL function which delegates to URLEncoder#encode().
<c:set var="url" value="#{beanOne.someMethod}/sometext#{prettyContext.requestURL.toURL()}"/>
<c:set var="media" value="#{beanOne.someOtherMethod}/sometext/somemoretext/#{beanTwo.someMethodTwo}-some-text.jpg"/>
<c:set var="description" value="#{beanTwo.someOtherMethodTwo}"/>
<a href="http://pinterest.com/pin/create/button/?url=#{utils:encodeURL(url)}&media=#{utils:encodeURL(media)}&description=#{utils:encodeURL(description)}" class="pin-it-button" count-layout="horizontal">
<img border="0" src="//assets.pinterest.com/images/PinExt.png" title="Pin It" />
</a>
(note that the class attribute was invalid for <h:outputLink>, you should be using styleClass)
Or create a custom renderer for <h:outputLink> which adds support for count-layout attribute. Assuming that you're using Mojarra, simplest would be to extend its OutputLinkRenderer:
public class ExtendedLinkRenderer extends OutputLinkRenderer {
#Override
protected void writeCommonLinkAttributes(ResponseWriter writer, UIComponent component) throws IOException {
super.writeCommonLinkAttributes(writer, component);
writer.writeAttribute("count-layout", component.getAttributes().get("count-layout"), null);
}
}
To get it to run, register it as follows in faces-config.xml:
<render-kit>
<renderer>
<component-family>javax.faces.Output</component-family>
<renderer-type>javax.faces.Link</renderer-type>
<renderer-class>com.example.ExtendedLinkRenderer</renderer-class>
</renderer>
</render-kit>
Related
I've browsed SO, and found some answers that have guided me closer to getting working radio buttons, but I'm stuck now.
I have the buttons, but am unable to get the value of the selected one.
I'm using JSF, hence the #{searchFlightsBean.setDir()}
Here's what I currently have:
<h:panelGrid>
<div class="btn-group" data-toggle-name="is_private" data-toggle="buttons-radio" >
<button type="button" value="0" class="btn" data-toggle="button">Public</button>
<button type="button" value="1" class="btn" data-toggle="button">Private</button>
</div>
<h:inputHidden id="hiddenDir" value="0" valueChangeListener="#{searchFlightsBean.setDir()}" onchange="submit()"/>
</h:panelGrid>
<script>
$(function() {
$('div.btn-group[data-toggle-name]').each(function() {
var group = $(this);
var form = group.parents('form').eq(0);
var name = group.attr('data-toggle-name');
var hidden = $('input[name="' + name + '"]', form);
$('button', group).each(function() {
var button = $(this);
button.on('click', function() {
hidden.val($(this).val());
});
if (button.val() == hidden.val()) {
button.addClass('active');
#{searchFlightsBean.setDir(button.value)}
}
});
});
});
</script>
In my bean, when setDir() is called, I am logging the value that it receives, like so:
public void setDir(ValueChangeEvent e) {
this.dir = e.getNewValue().toString();
log.info("NEW DIRECTION: " + this.getDir());
}
It doesn't log - setDir() is never called. For some reason the valueChangeListener attribute on the h:inputHidden tag doesn't work. Am I missing something?
Your concrete problem is caused because you used valueChangeListener the wrong way.
<h:inputHidden ... valueChangeListener="#{searchFlightsBean.setDir()}">
This does not match the method signature. You should omit the parentheses ().
<h:inputHidden ... valueChangeListener="#{searchFlightsBean.setDir}">
Otherwise JSF expects an argumentless setDir() method. Then, you're nowhere in JavaScript triggering the change event on the input element. The onchange="submit()" is therefore never invoked. You should be doing hidden.trigger("change") in JS to achieve that.
But, after all, this is somewhat clumsy. You're sending a full synchronous request and your JS code is rather overcomplicated (and stops working once you ajax-update the form). Provided that you're indeeed using JSF 2.x, I suggest to bring in <f:ajax> — which unfortunately doesn't work in <h:inputHidden>, hence the <h:inputText style="display:none"> — and to make use of $.on() in jQuery to keep the functions working even when you ajax-update the DOM.
<h:form>
<div class="btn-group" data-toggle-name="is_private" data-toggle="buttons-radio" >
<button type="button" value="0" class="btn" data-toggle="button">Public</button>
<button type="button" value="1" class="btn" data-toggle="button">Private</button>
</div>
<h:inputText id="is_private" value="#{bean.dir}" style="display: none;">
<f:ajax listener="#{bean.changeDir}" />
</h:inputText>
<!-- Note: <h:inputText id> must be exactly the same as <div data-toggle-name> -->
</h:form>
<h:outputScript>
$(document).on("click", "[data-toggle=buttons-radio] button", function() {
var $button = $(this);
var id = $button.closest(".btn-group").attr("data-toggle-name");
var $input = $button.closest("form").find("input[id$=':" + id + "']");
if ($input.val() != $button.val()) {
$input.val($button.val()).trigger("change");
}
});
</h:outputScript>
(noted should be that the whole script should really be placed in its own .js file which you include by <h:outputScript name="some.js" target="body">; note that you don't need $(document).ready() nor $(function() {}) mess; also note that the very JS function is reusable on all other <div data-toggle="buttons-radio"> groups without changes)
With this bean:
private Integer dir;
public void changeDir() {
System.out.println("New direction: " + dir);
}
// ...
(noted should be that when you're doing further nothing relevant in changeDir() method, then you could just omit the whole method and <f:ajax> altogether and revert <h:inputText style="display:none"> back to <h:inputHidden> and remove .trigger("change") and rely on the regular form submit. It'll work as good)
You cannot just call any backing bean functions via Expression Language calls (#{...}) in JavaScript.
What you could do, is using a4j:jsFunction to offer your bean method to the java script code. That might look like this:
<a4j:jsFunction name="setDir" action="#{searchFlightsBean.setDir()}" ajaxSingle="true">
<a4j:param name="dir" assignTo="#{searchFlightsBean.dir}" />
</a4j:jsFunction>
See http://docs.jboss.org/richfaces/latest_3_3_X/en/devguide/html/a4j_jsFunction.html
and http://showcase.richfaces.org/richfaces/component-sample.jsf?demo=jsFunction&skin=blueSky
I am using JSF and I have an h:selectOneMenu which is populated using f:selectItems from a backing bean. I would like to display a helpful message for each option in the h:selectOneMenu. This message will come from a bean too and it will be different for each option. I want to do that while the user navigates between the options and before selecting the options that he wants. The idea is to help the user decide what to select. In other words I want something very similar to “title” attribute of component but more fancy and powerful than this. Specifically I want something like a small popup window which allows unlimited number of characters. Is this possible? Do you have any idea as to how to proceed? Is there any JSF library that can help me do this?
I found this link ToolTip for each SelectOneMenu Items in jsf but it is not helpful for me because first of all it uses the “title” attribute and secondly the message does not come from a backing bean.
Thanks in advance!
As BalusC mentioned, you can just use Primefaces, and here is a sample code using the PowerTip jQuery plugin:
<p:selectOneMenu id="users" converter="userConverter" var="u">
<f:selectItems value="#{userManagedBean.users}" var="user" itemLabel="#{user.firstName}" itemValue="#{user}"/>
<p:column >
<span customData="#{u.emailOrAnyOtheInfoYouWantToDisplayInTooltip}" class="aClassForTooltips">
<h:outputText value="#{u.firstName} - #{u.lastName}" />
</span>
</p:column>
And on the jQuery part:
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script>
<h:outputScript name="js/jquery.powertip.min.js" />
<script type="text/javascript">
$.noConflict();
jQuery(document).ready(function () {
jQuery('.aClassForTooltips').each(function(){
var elementToH = jQuery(this),
data = elementToH.attr('customdata').replace(/%20/g,' ');
elementToH.data('powertip', function() {
return '<div style="background-color:black;width:200px;height:25px">'+data+'.</div>';
});
///////
elementToH.powerTip({
placement: 'ne' // north-east tooltip position
});
//////
});
});
Notice the use of a custom attribute in the span element. This attribute is ignored by JSF renderers if used with any JSF component, that's why you need a span.
Finally do not forget to include at least this CSS:
#powerTip {
position: absolute;
display: none;
z-index: 2147483647;
color:red;
}
I hope this helps
I want to display menu in JSF template. Every user of my application has different menu and the menu is stored in database. Here is my code,
MenuBean.java
public List<Menuitem> getUserMenu() {
List<Menuitem> menuitems = (List<Menuitem>) em.createQuery("_____________").setParameter("_______", _______).getResultList();
return menuitems;
}
pageTemplate.xhtml
<div class="container">
<div id="navigation">
<ul>
<ui:repeat var="_item" value="#{menuitemBean.userMenu}">
<li><h:outputLink value="#{_item.url}">
<h:outputText value="#{_item.name}" />
</h:outputLink></li>
</ui:repeat>
</ul>
</div>
<div id="content">
<h1>
<ui:insert name="header" />
</h1>
<h2>
<ui:insert name="subheader" />
</h2>
<ui:insert name="main" />
</div>
</div>
Problem is each time I navigate to a new page (.xhtml file) which is using the same template (pageTemplate.xhtml) the menu is loading all over again.
How can I load the menu only once per user.
If the menu is dependent on the user, it would be better to create a bean with a scope session that will store the content of this menu.
This way, once the menu is initialized the first time, it will not be re-initialized. Your code will look like that:
public class MySessionBean ... {
private List<Menuitem> menuItems = null;
public List<Menuitem> getUserMenu() {
if (menuItems == null) {
// Initialize the menu items.
menuItems = ...;
}
return menuitems;
}
Note that you can also initialize the menuItems objects in the constructor, or in a post-construct method (i.e. a method called just after the bean is instantiated).
An important thing also : do not put database access code in your beans (your em.createQuery(...)). Move that on service / DAO layers, and let the bean call the service to retrieve the information needed to build the menu items.
You should NOT put logic accessing the database in a getter method, because they are often called more than once in the same request.
To load your menu once for each user, put the property in a #SessionScoped backing bean and then initialize it in a #PostConstruct annotated method:
#SessionScoped
public SomeBean {
private List<Menuitem> menuItems;
#PostConstruct
public void init() {
menuItems = (List<Menuitem>) em.createQuery("_____________")
.setParameter("_______", _______).getResultList();
}
// getter and setter for menuItems
}
As the bean is in the session scope, it will exist as one instance for each user session in your application.
Note that I assumed you are using JSF 2, because you tagged the question as java-ee-6.
I have the following code snippets which basically set a hidden field's value to the html content of a div (using jQuery) so I can process it on a backing bean:
MyPage.xhtml
function save_to_hidden()
{
document.getElementById('hidden_field').value=$('#my_div').html();
}
Further down:
<h:inputHidden id="hidden_field" value="#{myBean.divData}" />
Further down:
`<div id="my_div">
<!-- content in foreign language (spanish) -->
</div>
Further down:
<a4j:commandButton value="Save" onclick="save_to_hidden()" action="#{myBean.processDivData}" />
I receive the content on the "processDivData" method, but all the "special" characters are replaced with gibberish. Where the problem could be?
Thank you
The hidden_field is rendered as an HTML form element and as such probably encoded the data in the application/x-www-form-urlencoded MIME type before sending it to the server.
You can use the URLDecoder class to decode these Unicode characters.
I am trying to use CKEditor in my JSF application. How to get the content of CKEditor into backing bean..?
index.xhtml
<form action="" method="post">
<p>
My Editor:<br />
<textarea cols="90" rows="20" id="editor1" name="editor1" value="#{EditorBean.value}"></textarea>
<script type="text/javascript">
CKEDITOR.replace( 'editor1',
{
uiColor: '#85B5D9'
});
</script>
<input type="button" value="Clear" name="clear" onclick="clear1()"/>
</p>
</form>
BackingBean
#ManagedBean
public class EditorBean {
private String value;
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
System.out.println("Content: "+value);
}
}
When I tried to print the value, It is not printing. Help me on this issue. PrimeFaces Editor is not supporting "Insert Table" function. So, I want to use CKE.
As el wont be able to evaluate non-JSF component.
Add this to your page :
<h:inputHidden value="#{EditorBean.value}" id="editorValue"/>
and onblur of editor textarea assign the value to the hidden element using
document.getElementById(editorValue).value = this.value;
Since this question bumped up somehow....
There is another option:
You can use the PrimeFaces Extensions , here is the link PrimeFaces Extensions CKEditor
Here an example from the showcase
<p:growl id="growl" showDetail="true" />
<pe:ckEditor id="editor" value="#{editorController.content}" interfaceColor="#33fc14">
<p:ajax event="save" listener="#{editorController.saveListener}" update="growl"/>
</pe:ckEditor>
<p:commandButton actionListener="#{editorController.changeColor}" update="editor"
value="Change color with AJAX" style="margin-top:10px;"/>
try this:
<textarea class="ckeditor" cols="80" id="editor1" rows="10"/>
<h:inputHidden value="#{tskCtrl.selected.dsc}" id="editorValue"/>
<p:commandButton onclick="document.getElementById('editorValue').value = CKEDITOR.instances.editor1.getData();" action="#{tskCtrl.create()}" value="Post" />
The answer from niksvp was helpful and set me in the right direction, but
the problem I found was that the blur handler never fires. I had to copy
the value from the textarea to the inputHidden on the onclick handler of
the commandButton:
<textarea id="textareaValue" .../>
<a4j:commandButton execute="editorValue" onclick="document.getElementById('editorValue').value = document.getElementById('textareaValue').value;"
...
or
<a4j:commandButton execute="editorValue" onclick="jQuery('#editorValue').val(jQuery('#textareaValue').val())"
I tried using onbegin & onbeforedomupdate but they didn't work.
Another option is to use the JSF versions of form and textarea. (It is likely possible to do this with passthrough elements as well, but I didn't try that.)
<h:form id="form">
<p>
My Editor:<br />
<h:inputTextarea cols="90" rows="20" id="editor1" value="#{EditorBean.value}" />
<script type="text/javascript">
ClassicEditor.create(document.querySelector('form\\:editor1'))
.then( editor => {
console.log( editor );
} )
.catch( error => {
console.error( error );
} );
</script>
</p>
</form>
This assumes that you do not have prependId=false.
The weird \\: is an escaping issue. It won't work without that. You'd get the "is an invalid selector" error in the console.
You can ID form and editor1 with other names, but you'll need to change the selector as well. You don't want to leave it to the defaults, as those are fragile, often changing as you update the page. Now it will only change if you change the structure of where editor1 is relative to form. E.g. if you add a fieldset around editor1, that would make the ID something like form\\:fieldset\\:editor1, where fieldset is the ID of the fieldset as specified in JSF. JSF will create the long version for you.
This also requires the CKEditor script to be added to the head, e.g.:
<script src="https://cdn.ckeditor.com/ckeditor5/11.2.0/classic/ckeditor.js"></script>
This particular example is for the ClassicEditor version. If you want a different version, you'd need to change the script and the part that says ClassicEditor.
Differences between the script as called in the question and this version may be that this is the current version (as I write this) while the question is older.
Alternately, you might prefer to use h:outputScript. But then you might need to host the script in your resources folder rather than using the version from the CDN.
See also:
Is the ID generated by JSF guaranteed to be the same across different versions and implementations?
Select element with double dot in id, error: “#octo:cat” is not a valid selector
Acquire full prefix for a component clientId inside naming containers with JSF 2.0
How to find out client ID of component for ajax update/render? Cannot find component with expression “foo” referenced from “bar”
How to include JavaScript files by h:outputScript?