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PrimeFaces User Guide
3.51 Grid CSS
Grid  CSS  is  a  lightweight  responsive  layout  utility  optimized  for  mobile  devices,  tablets  and
desktops. Up to 12 columns are supported based on fluid and fixed modes.
Getting Started with Grid
There are special components as usage is simple using divs. A 3 column layout can be defined as;
<div class="ui-grid">
<div class="ui-grid-row">
<div class="ui-grid-col-4">Col1</div>
<div class="ui-grid-col-4">Col2</div>
<div class="ui-grid-col-4">Col2</div>
</div>
</div>
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PrimeFaces User Guide
Custom Layout
As long as the sum of columns are 12, various combinations are supported.
<div class="ui-grid">
<div class="ui-grid-row">
<div class="ui-grid-col-4">4</div>
<div class="ui-grid-col-8">8</div>
</div>
</div>
Multi Line
Multiple rows are enabled using more than one .ui-grid-row elements.
<div class="ui-grid">
<div class="ui-grid-row">
<div class="ui-grid-col-4">4</div>
<div class="ui-grid-col-4">4</div>
<div class="ui-grid-col-4">4</div>
</div>
<div class="ui-grid-row">
<div class="ui-grid-col-4">4</div>
<div class="ui-grid-col-4">4</div>
<div class="ui-grid-col-4">4</div>
</div>
<div class="ui-grid-row">
<div class="ui-grid-col-4">4</div>
<div class="ui-grid-col-4">4</div>
<div class="ui-grid-col-4">4</div>
</div>
</div>
Responsive
Adding .ui-grid-responsive to the container makes the content responsive to screen sizes.
<div class="ui-grid ui-grid-responsive">
<div class="ui-grid-row">
<div class="ui-grid-col-4">4</div>
<div class="ui-grid-col-8">8</div>
</div>
</div>
Fixed
.ui-grid-fixed enables fixed width for the content.
<div class="ui-grid ui-grid-fixed">
<div class="ui-grid-row">
<div class="ui-grid-col-4">4</div>
<div class="ui-grid-col-8">8</div>
</div>
</div>
242
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PrimeFaces User Guide
3.52 Growl
Growl is based on the Mac’s growl notification widget and used to display FacesMessages in an 
overlay.
Info
Tag
growl
Component Class
org.primefaces.component.growl.Growl
Component Type
org.primefaces.component.Growl
Component Family
org.primefaces.component
Renderer Type
org.primefaces.component.GrowlRenderer
Renderer Class
org.primefaces.component.growl.GrowlRenderer
Attributes
Name
Default
Type
Description
id
null
String
Unique identifier of the component
rendered
true
Boolean
Boolean value to specify the rendering of the 
component, when set to false component will not be 
rendered.
binding
null
Object
An el expression that maps to a server side 
UIComponent instance in a backing bean
sticky
false
Boolean
Specifies if the message should stay instead of hidden 
automatically.
showSummary
true
Boolean
Specifies if the summary of message should be 
displayed.
showDetail
false
Boolean
Specifies if the detail of message should be displayed.
globalOnly
false
Boolean
When true, only facesmessages without clientids are 
displayed.
life
6000
Integer
Duration in milliseconds to display non-sticky 
messages.
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PrimeFaces User Guide
Name
Default
Type
Description
autoUpdate
false
Boolean
Specifies auto update mode.
redisplay
true
Boolean
Defines if already rendered messaged should be 
displayed.
for
null
String
Name of associated key, takes precedence when used 
with globalOnly.
escape
true
Boolean
Defines whether html would be escaped or not.
severity
null
String
Comma separated list of severities to display only.
Getting Started with Growl
Growl usage is similar to standard h:messages component. Simply place growl anywhere on your
page, since messages are displayed as an overlay, the location of growl in JSF page does not matter.
<p:growl />
Lifetime of messages
By default each message will be displayed for 6000 ms and then hidden. A message can be made
sticky meaning it’ll never be hidden automatically.
<p:growl sticky="true" />
If  growl  is  not  working  in  sticky  mode,  it’s  also  possible  to  tune  the  duration  of  displaying
messages. Following growl will display the messages for 5 seconds and then fade-out.
<p:growl life="5000" />
Growl with Ajax Updates
If you need to display messages with growl after an ajax request you just need to update it. Note
that if you enable autoUpdate, growl will be updated automatically with each ajax request anyway.
<p:growl id="messages"/>
<p:commandButton value="Submit" update="messages" />
Positioning
Growl is positioned at top right corner by default, position can be controlled with a CSS selector 
called ui-growl. With the below setting growl will be located at top left corner.
.ui-growl {
left:20px;
}
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PrimeFaces User Guide
Targetable Messages
There  may  be  times  where  you  need  to  target  one  or  more  messages  to  a  specific  message
component, for example suppose you have growl and messages on same page and you need to
display some messages on growl and some on messages. Use for attribute to associate messages
with specific components.
<p:messages for="somekey" />
<p:growl for="anotherkey" />
FacesContext context = FacesContext.getCurrentInstance();
context.addMessage("somekey", facesMessage1);
context.addMessage("somekey", facesMessage2);
context.addMessage("anotherkey", facesMessage3);
In sample above, messages will display first and second message and growl will only display the 
3rd message.
Severity Levels
Using severity attribute, you can define which severities can be displayed by the component. For 
instance, you can configure growl to only display infos and warnings.
<p:growl severity="info,warn" />
Escaping
Growl escapes html content in messages, in case you need to display html via growl set escape 
option to false.
<p:growl escape="false" />
Skinning
Following is the list of structural style classes;
Style Class
Applies
.ui-growl
Main container element of growl
.ui-growl-item-container
Container of messages
.ui-growl-item
Container of a message
.ui-growl-message
Text message container
.ui-growl-title
Summary of the message
.ui-growl-message p
Detail of the message
.ui-growl-image
Severity icon
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PrimeFaces User Guide
Style Class
Applies
.ui-growl-image-info
Info severity icon
.ui-growl-image-warn
Warning severity icon
.ui-growl-image-error
Error severity icon
.ui-growl-image-fatal
Fatal severity icon
As skinning style classes are global, see the main theming section for more information.
246
PrimeFaces User Guide
3.53 HotKey
HotKey is a generic key binding component that can bind any formation of keys to javascript event
handlers or ajax calls.
Info
Tag
hotkey
Component Class
org.primefaces.component.hotkey.HotKey
Component Type
org.primefaces.component.HotKey
Component Family
org.primefaces.component
Renderer Type
org.primefaces.component.HotKeyRenderer
Renderer Class
org.primefaces.component.hotkey.HotKeyRenderer
Attributes
Name
Default
Type
Description
id
null
String
Unique identifier of the component.
rendered
true
Boolean
Boolean value to specify the rendering of the 
component, when set to false component will not 
be rendered.
binding
null
Object
An el expression that maps to a server side 
UIComponent instance in a backing bean
bind
null
String
The Key binding.
handler
null
String
Javascript event handler to be executed when the 
key binding is pressed.
action
null
MethodExpr
A method expression that’d be processed in the 
partial request caused by uiajax.
actionListener
null
MethodExpr
An actionlistener that’d be processed in the partial 
request caused by uiajax.
immediate
false
Boolean
Boolean value that determines the phaseId, when 
true actions are processed at apply_request_values,
when false at invoke_application phase.
async
false
Boolean
When set to true, ajax requests are not queued.
process
null
String
Component id(s) to process partially instead of 
whole view.
update
null
String
Client side id of the component(s) to be updated 
after async partial submit request.
onstart
null
String
Javascript handler to execute before ajax request is 
247
PrimeFaces User Guide
Name
Default
Type
Description
begins.
oncomplete
null
String
Javascript handler to execute when ajax request is 
completed.
onsuccess
null
String
Javascript handler to execute when ajax request 
succeeds.
onerror
null
String
Javascript handler to execute when ajax request 
fails.
global
true
Boolean
Global ajax requests are listened by ajaxStatus 
component, setting global to false will not trigger 
ajaxStatus.
delay
null
String
If less than delay milliseconds elapses between 
calls to request() only the most recent one is sent 
and all other requests are discarded. If this option 
is not specified, or if the value of delay is the literal
string 'none' without the quotes, no delay is used.
partialSubmit
false
Boolean
Enables serialization of values belonging to the 
partially processed components only.
partialSubmitFilter null
String
Selector to use when partial submit is on, default is
":input" to select all descendant inputs of a 
partially processed components.
resetValues
false
Boolean
If true, local values of input components to be 
updated within the ajax request would be reset.
ignoreAutoUpdate false
Boolean
If true, components which autoUpdate="true" will 
not be updated for this request. If not specified, or 
the value is false, no such indication is made.
timeout
0
Integer
Timeout for the ajax request in milliseconds.
Getting Started with HotKey
HotKey is used in two ways, either on client side with the event handler or with ajax support.
Simplest example would be;
<p:hotkey bind="a" handler="alert(‘Pressed a’);" />
When this hotkey is on page, pressing the a key will alert the ‘Pressed key a’ text.
Key combinations
Most of the time you’d need key combinations rather than a single key.
<p:hotkey bind="ctrl+s" handler="alert(‘Pressed ctrl+s’);" />
<p:hotkey bind="ctrl+shift+s" handler="alert(‘Pressed ctrl+shift+s’)" />
248
PrimeFaces User Guide
Integration
Here’s an example demonstrating how to integrate hotkeys with a client side api. Using left and
right keys will switch the images displayed via the p:imageSwitch component.
<p:hotkey bind="left" handler="PF('switcher').previous();" />
<p:hotkey bind="right" handler="PF('switcher').next();" />
<p:imageSwitch widgetVar="switcher">
//content
</p:imageSwitch>
Ajax Support
Ajax  is  a  built-in  feature  of  hotKeys  meaning  you  can  do  ajax  calls  with  key  combinations.
Following form can be submitted with the ctrl+shift+s combination.
<h:form>
<p:hotkey bind="ctrl+shift+s" update="display" />
<h:panelGrid columns="2">
<h:outputLabel for="name" value="Name:" />
<h:inputText id="name" value="#{bean.name}" />
</h:panelGrid>
<h:outputText id="display" value="Hello: #{bean.firstname}" />
</h:form>
Note that hotkey will not be triggered if there is a focused input on page.
249
PrimeFaces User Guide
3.54 IdleMonitor
IdleMonitor watches user actions on a page and notify callbacks in case they go idle or active again.
Info
Tag
idleMonitor
Component Class
org.primefaces.component.idlemonitor.IdleMonitor
Component Type
org.primefaces.component.IdleMonitor
Component Family
org.primefaces.component
Renderer Type
org.primefaces.component.IdleMonitorRenderer
Renderer Class
org.primefaces.component.idlemonitor.IdleMonitor
Attributes
Name
Default
Type
Description
id
null
String
Unique identifier of the component
rendered
true
Boolean
Boolean value to specify the rendering of the 
component, when set to false component will not be 
rendered.
binding
null
Object
An el expression that maps to a server side 
UIComponent instance in a backing bean
timeout
300000
Integer
Time to wait in milliseconds until deciding if the user 
is idle. Default is 5 minutes.
onidle
null
String
Client side callback to execute when user goes idle.
onactive
null
String
Client side callback to execute when user goes idle.
widgetVar
null
String
Name of the client side widget.
Getting Started with IdleMonitor
To begin with, you can hook-in to client  side events  that are  called when a user goes idle  or
becomes active again. Example below toggles visibility of a dialog to respond these events.
<p:idleMonitor onidle="PF('idleDialog').show();" 
onactive="PF('idleDialog').hide();"/>
<p:dialog header="What's happening?" widgetVar="idleDialog" modal="true">
<h:outputText value="Dude, are you there?" />
</p:dialog>
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