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org.apache.struts2.components
Class Head

java.lang.Object
  extended by org.apache.struts2.components.Component
      extended by org.apache.struts2.components.UIBean
          extended by org.apache.struts2.components.Head

public class Head
extends UIBean

Renders parts of the HEAD section for an HTML file. This is useful as some themes require certain CSS and JavaScript includes.

If, for example, your page has ajax components integrated, without having the default theme set to ajax, you might want to use the head tag with theme="ajax" so that the typical ajax header setup will be included in the page.

The tag also includes the option to set a custom datepicker theme if needed. See calendarcss parameter for description for details.

If you use the ajax theme you can turn a debug flag on by setting the debug parameter to true.

Examples 

 
 <head>
   <title>My page</title>
   <s:head/>
 </head>
 
 
 
 <head>
   <title>My page</title>
   <s:head theme="ajax" calendarcss="calendar-green"/>
 </head>
 
 
 
 <head>
   <title>My page</title>
   <s:head theme="ajax" debug="true"/>
 </head>

Field Summary
static java.lang.String TEMPLATE
           
 
Fields inherited from class org.apache.struts2.components.UIBean
accesskey, cssClass, cssStyle, disabled, label, labelPosition, name, onblur, onchange, onclick, ondblclick, onfocus, onkeydown, onkeypress, onkeyup, onmousedown, onmousemove, onmouseout, onmouseover, onmouseup, onselect, request, required, requiredposition, response, tabindex, template, templateDir, templateSuffix, theme, title, tooltip, tooltipConfig, value
 
Fields inherited from class org.apache.struts2.components.Component
COMPONENT_STACK, id, parameters, stack
 
Constructor Summary
Head(com.opensymphony.xwork2.util.OgnlValueStack stack, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
           
 
Method Summary
 void evaluateParams()
           
 java.lang.String getCalendarcss()
           
protected  java.lang.String getDefaultTemplate()
          A contract that requires each concrete UI Tag to specify which template should be used as a default.
 boolean isDebug()
           
 void setCalendarcss(java.lang.String calendarcss)
          The jscalendar css theme to use" default="calendar-blue.css
 void setDebug(boolean debug)
          Set to true to enable debugging mode for AJAX themes
 
Methods inherited from class org.apache.struts2.components.UIBean
addFormParameter, buildTemplateName, enableAncestorFormCustomOnsubmit, end, escape, evaluateExtraParams, evaluateNameValue, getTemplate, getTemplateDir, getTheme, getTooltipConfig, getValueClassType, mergeTemplate, populateComponentHtmlId, setAccesskey, setCssClass, setCssStyle, setDisabled, setLabel, setLabelposition, setName, setOnblur, setOnchange, setOnclick, setOndblclick, setOnfocus, setOnkeydown, setOnkeypress, setOnkeyup, setOnmousedown, setOnmousemove, setOnmouseout, setOnmouseover, setOnmouseup, setOnselect, setRequired, setRequiredposition, setTabindex, setTemplate, setTemplateDir, setTheme, setTitle, setTooltip, setTooltipConfig, setValue
 
Methods inherited from class org.apache.struts2.components.Component
addAllParameters, addParameter, altSyntax, copyParams, determineActionURL, determineNamespace, end, fieldError, findAncestor, findString, findString, findValue, findValue, findValue, getComponentStack, getId, getParameters, getStack, popComponentStack, setId, start, toString, usesBody
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

TEMPLATE

public static final java.lang.String TEMPLATE
See Also:
Constant Field Values
Constructor Detail

Head

public Head(com.opensymphony.xwork2.util.OgnlValueStack stack,
            javax.servlet.http.HttpServletRequest request,
            javax.servlet.http.HttpServletResponse response)
Method Detail

getDefaultTemplate

protected java.lang.String getDefaultTemplate()
Description copied from class: UIBean
A contract that requires each concrete UI Tag to specify which template should be used as a default. For example, the CheckboxTab might return "checkbox.vm" while the RadioTag might return "radio.vm". This value not begin with a '/' unless you intend to make the path absolute rather than relative to the current theme.

Specified by:
getDefaultTemplate in class UIBean
Returns:
The name of the template to be used as the default.

evaluateParams

public void evaluateParams()
Overrides:
evaluateParams in class UIBean

getCalendarcss

public java.lang.String getCalendarcss()

setCalendarcss

public void setCalendarcss(java.lang.String calendarcss)
The jscalendar css theme to use" default="calendar-blue.css

isDebug

public boolean isDebug()

setDebug

public void setDebug(boolean debug)
Set to true to enable debugging mode for AJAX themes

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