How to hide a jsf element when page is loading - jsf

I am new to JSF and doing some sample login application. I need username,password only with tooltips.
I have added below extra jsf element rich:toolTip element added as below and my question is, how to hide this extra element.
I want to hide this element without removing from jsp.
When I inspected the source code from browser, UI is getting broken and added some extra space.
sample.jsp
<h:panelGrid>
<h:outputText value="username"/>
<h:inputText value="username">
<rich:toolTip value="enter uname" event="onmouseover"
direction="bottom-right" layout="block"/>
</h:inputText>
<h:outputText value="password"/>
<h:inputText value="password">
<rich:toolTip value="enter password" event="onmouseover"
direction="bottom-right" layout="block"/>
</h:inputText>
<rich:toolTip value="how to hide this element" event="onmouseover"
direction="bottom-right" layout="block"/>
</h:panelGrid>
Could anyone help on this?

Related

How to display values from JSF Bean in facets?

I have created a little popup dialog with header, content and footer.
Now I want to get some information from the database using my JSF bean to display who was the last person that edited this account.
This is what I did:
<f:facet name="footer">
<h:panelGroup layout="block" style="display:block; ">
<h:outputText class="customerVieFooter" value="Created at "/>
<h:outputText class="customerVieFooter" value="#{customerController.customer.createdAt}">
<f:convertDateTime pattern="dd.MM.yyyy" />
</h:outputText>
</h:panelGroup>
</f:facet>
When I run this I am just getting the first outputText because the second does not seem to get the value.
How can I fix this issue?

How to show a loading image (using a4j)?

The following code in my .xhtml works fine:
<h:commandButton id="btnConsultar"
action="#cadastrarProponenteBean.consultarCnpj}"
value="#{messages.tx_consultar}"
styleClass="btnAcao" />
But, when I add a4j:support:
<h:commandButton id="btnConsultar"
action="#{cadastrarProponenteBean.consultarCnpj}"
value="#{messages.tx_consultar}"
styleClass="btnAcao">
<a4j:support event="onclick" />
</h:commandButton>
the application breaks, I get strange errors, and my validation messages('getFacesContext().addMessage') are not shown.
Since I'm using a4j:support just to show a loading gif when user clicks, any advice on how to fix this problem?
I'm using JSF and RichFaces.
PS: already tried a4j:commandButton instead of h:commandButton but same problems...
You should use <a4j:status> similar to:
<a4j:status id="ajaxstatus" rendered="true">
<f:facet name="start">
<h:panelGroup>
<h:graphicImage value="/images/loading.gif" />
</h:panelGroup>
</f:facet>
<f:facet name="stop">
</f:facet>
</a4j:status>
I have it in template. Loading image is displayed during any long action.

omnifaces highlight component is not working with richfaces 4 bean validation

I have the maven dependency for omnifaces for version 1.11 (as my target is JDK 1.6). Richfaces 4.5.6 final, myfaces 2.2.8. And, against a viewscoped bean I have got this xhtml:
<ui:define name="content">
<f:loadBundle basename="au.com.erb.facility.ui.facility"
var="property" />
<o:highlight styleClass="error" />
<h:panelGrid columns="2">
<rich:validator event="change">
<o:outputLabel value="#{property.absClientNumber}" for="input1" />
<h:inputText id="input1"
value="#{facilityBean.facilityForEdit.alternateKey.absClientNumber}"
label="ABS Client Number" />
<o:outputLabel value="#{property.facilityid}" />
<h:inputText
value="#{facilityBean.facilityForEdit.alternateKey.facilityId}"
label="Facility Id" />
<h:outputLabel value="#{property.rfsAccountGroup}" />
<h:inputText value="#{facilityBean.facilityForEdit.rfsAccountGroup}"
label="RFS Account Group" />
<h:outputLabel value="#{property.rfsAcctCustomerNumber}" />
<h:inputText
value="#{facilityBean.facilityForEdit.rfsAcctCustomerNumber}"
label="RFS Account Customer Number" />
<h:outputLabel value="#{property.rfsAcctLedger}" />
<h:inputText value="#{facilityBean.facilityForEdit.rfsAcctLedger}"
label="RFS Account Ledger" />
</rich:validator>
</h:panelGrid>
</ui:define>
<!-- Buttons that performs actions on a selected record -->
<!-- or navigate to a relevant screen -->
<ui:define name="buttons">
<h:commandButton id="submitButton" value="#{property.submitLabel}"
action="#{facilityBean.save}" styleClass="wideButton"
onclick="#{rich:component('progressWaitModalPanel')}.show()" />
<h:commandButton id="closeButton" value="#{property.closeLabel}"
action="#{facilityBean.close}" styleClass="wideButton"
immediate="true" />
<rich:popupPanel id="progressWaitModalPanel" modal="true">
<f:facet name="header">
<h:outputText value="Processing your request ...." />
</f:facet>
<h:panelGrid columns="1"
style="width: 100%; border-width: 0px; text-align: center;">
<h:outputText value="Please wait..." styleClass="dataValueStyle" />
</h:panelGrid>
</rich:popupPanel>
</ui:define>
The result is nothing. No higlight. No clue what's going on. Have I missed any installation step? I have the css and xmlnamespace in place. Anything else?
I tried to add required="true" as it was shown in the example, but that did not work either. Not sure whether it is due to richfaces bean validation issue.
The <o:highlight> works server side, based on a.o. UIInput#isValid() in JSF component tree. The <rich:validator> works client side and doesn't manipulate JSF component tree.
This indeed doesn't go well together.
I briefly looked into the HTML/JS code of the <rich:validator> showcase and it appears that they don't add a marker style class to the input elements when it's invalid (e.g. PrimeFaces does), so it's going to be hard to write a workaround when continuing the <rich:validator> approach.
You've basically following options:
Maunally write an oncomplete script which finds the validation error messages and then finds the associated inputs and then set the desired marker style class on it.
Report an issue to RichFaces guys and ask them to add a marker style class to invalid inputs via <rich:validator>, so you could style them individually.
Drop <rich:validator> and replace it by server side validation via <f:ajax>.

URL parameters lost after JSF validation

I have a requirement where I need to display the header and footer based upon the value in the URL parameters. Everything works fine. But the URL params are lost after JSF validations. This happens only when I click submit. Works fine for the ajax validations.
<h:panelGrid columns="1" id="lnamePanel">
<h:inputText tabindex="1" maxlength="50" id="lastName" value="#{registrationBean.last_name}" required="true" requiredMessage="Last Name is a required field" validatorMessage="Not a valid last name">
<f:validateRegex pattern="^[A-Za-z-_.\s]{2,50}$"/>
<f:ajax event="blur" render="lnamePanel" />
</h:inputText>
<h:message for="lastName" display="text" style="color:red;"/>
</h:panelGrid>
<h:commandButton value="Submit" actionListener="#{registrationBean.handleSubmit}" ajax="true"/>
How do I retain the url parameters after JSF validation? In this case, I cannot manipulate the URL inside the backing bean as the backing bean method is not getting called.
Any help would be appreciated.

How do I conditionally render an <f:facet>?

I would like to be able to conditionally omit a footer from a PrimeFaces panel element:
<p:panel header="some text">
<f:facet name="footer">
#{message}
</f:facet>
<!-- ... -->
</p:panel>
I hoped that the rendered attribute would work:
<p:panel header="some text">
<f:facet name="footer" rendered="#{!empty message}">
#{message}
</f:facet>
<!-- ... -->
</p:panel>
But the footer is still rendered, with empty content. It appears that facet does not have the rendered attribute: http://www.jsftoolbox.com/documentation/help/12-TagReference/core/f_facet.html.
What's the right way to do this?
I was able to solve this by swapping the facet out for an attribute. To summarize:
This works
<p:panel ...>
<f:attribute name="footer" value="#{message}"/>
<!-- ... -->
</p:panel>
But this doesn't work
<p:panel footer="#{message}">
<!-- ... -->
</p:panel>
Neither does this
<p:panel ...>
<f:facet name="footer">#{message}</f:facet>
<!-- ... -->
</p:panel>
Nor this
<p:panel ...>
<f:facet name="footer">
<h:outputText value="#{message}" rendered="#{!empty message}"/>
</f:facet>
<!-- ... -->
</p:panel>
by "works" I mean:
"renders no footer — not just an empty footer — when #{message} is empty or null; otherwise, correctly renders the footer with the specified text."
PrimeFaces forum thread on this issue
You could declare a ui:param and let the template check the param while renderring.
The facet in the template could then be declared as:
<f:facet name="#{hideFooter == null or not hideFooter ? 'footer' : ''}">
#{message}
</f:facet>
Any page can then declare this param
<ui:param name='hideFooter' value='#{some rule}' />
and set the appropriate rule for the param. For any page that does not declare the param, the footer will be displayed.
Here's what I did in trying to conditionally render a facet within a composite component.
<composite:interface>
<composite:facet name="header" required="false" />
</composite:interface>
<composite:implementation>
<p:panel>
<c:if test="#{empty component.facets.header}" >
<f:facet id="#{cc.attrs.id}_default_header" name="header">
all sorts of stuff here
</f:facet>
</c:if>
<c:if test="#{not empty component.facets.header}">
<composite:insertFacet id="#{cc.attrs.id}_custom_header" name="header" />
</c:if>
<composite:insertChildren id="#{cc.attrs.id}_content"/>
</p:panel>
</composite:implementation>
This let's the user of the composite component supply the header facet if they want, and if they don't, we supply a default. Obviously, instead of providing a default, you could simply not do anything.
This mixes c:if in jsf controls, but we didn't see any adverse effects.
I have come across a similar issue with plain JSF. I am not sure how a <p:panel> is rendered, but if it is rendered as a table, you can try this:
First, declare a CSS-class like this:
.HideFooter tfoot {
display: none;
}
Then set that class conditionally on the panel:
<p:panel styleClass="#{renderFooterCondition ? null : 'HideFooter'}">
The footer is still rendered in the JSF-sense, but it is not displayed and does not take up any space in the page when viewed by the user-agent.
I successfully solved this problem using ui:fragment
<ui:fragment rendered="...Test...">
<f:facet name="footer">
...
</f:facet>
</ui:fragment>
works for example to conditionnaly render the footer of a primefaces datatable (the rendered attribute of the facet does not work).
Not sure how well this would work for your footer, but I had the same issue with a legend I was trying to conditionally render. I fixed it by using the rendered on anything inside the facet tag.
<p:fieldset>
<f:facet name="legend">
<h:outputText value="#{header1}" rendered="#{header1.exists}"/>
<h:outputText value="#{header2}" rendered="#{not header1.exists}"/>
</f:facet>
content
</p:fieldset>
I had difficulty trying c:if with my ui:repeat, so this was my solution. Not quite the same as your problem, but similar.
Facets are not intended to render HTML, which is why it doesn't have the rendered attribute. Facets add functionality to a page. The term facet is probably a poor choice of name. It's very ambiguous.
..if the list compiled by ITworld's Phil Johnson has it right, the
single hardest thing developers do is name things.
ie.
JSF facets
A project facet is a specific unit of functionality that you can add to a project when that functionality is required. When a project facet is added to a project, it can add natures, builders, classpath entries, and resources to a project, depending on the characteristics of the particular project. JSF facets define the characteristics of your JSF enabled web application. The JSF facets specify the requirements and constraints that apply to your JSF project.
The JSF facets supply a set behaviors and capabilities to your web application.
This is a counter-answer to the answer from Ludovic Pénet.
This worked for me in <f:facet name="footer"> in selected p:column items of a p:dataTable (Primefaces 5.3):
...
Note how I have the ui:fragment inside the f:facet, not outside (not wrapping) it. It definitely completely removes the entire row when every footer facet is tested to NOT render (as far as I can tell, independent of the content within the ui:fragment).
Try with this, from primefaces web page
<p:columnGroup type="footer">
<p:row>
<p:column colspan="3" style="text-align:right" footerText="Totals:" />
<p:column footerText="your value in ajax" />
<p:column footerText="your value in ajax" />
</p:row>
</p:columnGroup>
clik here, to view primefaces' webpage
For those who landed here trying to hide the footer, instead of header, but the syntax component.facets.footer didn't work, should try this:
<p:panel id="panelContent">
<c:if test="#{not empty cc.facets.footer}">
<f:facet name="footer" height="100%">
your content
</f:facet>
</c:if>
</panel>
Why don't you enclose the content of the footer into a panelGroup which has the rendered attribute?
This way:
<p:panel header="some text">
<f:facet name="footer">
<h:panelGroup rendered="#{!empty message}">
#{message}
</h:panelGroup>
</f:facet>
<!-- ... -->
</p:panel>
I do it in my weapp and it works, no footer is rendered.
I don't use primefaces though, I do it with h:datatable, but I think that it must works with p:panel too.
I try this solution and ok. (http://www.coderanch.com/t/431222/JSF/java/dynamically-set-panel-header-condition)
<rich:dataGrid value="#{myMB.student.list}" rendered="#{!empty myMB.student and !empty myMB.student.list}" var="st" rowKeyVar="row">
<rich:panel>
<f:facet name="header">
<h:panelGroup id="panelHeader">
<h:outputText value="Just one student" id="header1" required="true" rendered="#{!myMB.manyStudents}"/>
<h:outputText value="#{row+1}º Student" id="header2" required="true" rendered="#{myMB.manyStudents}"/>
</h:panelGroup>
</f:facet>
<rich:panel>

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