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org.zkoss.zul
Class Html

java.lang.Object
  extended by org.zkoss.zk.ui.AbstractComponent
      extended by org.zkoss.zk.ui.HtmlBasedComponent
          extended by org.zkoss.zul.impl.XulElement
              extended by org.zkoss.zul.Html
All Implemented Interfaces:
java.io.Serializable, java.lang.Cloneable, Component, Scope, ComponentCtrl
public class Html
extends XulElement

A comonent used to embed the browser native content (i.e., HTML tags) into the output sent to the browser. The browser native content is specified by setContent(java.lang.String).

Notice that Html generates HTML SPAN to enclose the embedded HTML tags. Thus, you can specify the style (HtmlBasedComponent.getStyle()), tooltip XulElement.getTooltip() and so on. 

<html style="border: 1px solid blue"><![CDATA[
 <ul>
  <li>It is in a SPAN tag.</li>
 </ul>
]]></html>

The generated HTML tags will look like: 

<SPAN id="xxx" style="border: 1px solid blue">
 <ul>
  <li>It is in a SPAN tag.</li>
 </ul>
</SPAN>

Since SPAN is used to enclosed the embedded HTML tags, so the following is incorrect. 

<html><![CDATA[
 <table>
  <tr>
   <td> <-- Incomplete since it is inside SPAN -->
]]></html>

<textbox/>

<html><![CDATA[
   </td>
  </tr>
 </table>
]]></html>

If you need to generate the HTML tags directly without enclosing with SPAN, you can use the Native namespace, http://www.zkoss.org/2005/zk/native. Refer to ZK Developer's Reference for more information.

A non-XUL extension.

Author:
tomyeh
See Also:
Serialized Form

Nested Class Summary
 
Nested classes/interfaces inherited from class org.zkoss.zk.ui.HtmlBasedComponent
HtmlBasedComponent.ExtraCtrl
 
Nested classes/interfaces inherited from class org.zkoss.zk.ui.AbstractComponent
AbstractComponent.Children
 
Field Summary
 
Fields inherited from class org.zkoss.zk.ui.HtmlBasedComponent
_zclass
 
Fields inherited from interface org.zkoss.zk.ui.Component
APPLICATION_SCOPE, COMPONENT_SCOPE, DESKTOP_SCOPE, PAGE_SCOPE, REQUEST_SCOPE, SESSION_SCOPE, SPACE_SCOPE
 
Fields inherited from interface org.zkoss.zk.ui.sys.ComponentCtrl
CE_BUSY_IGNORE, CE_DUPLICATE_IGNORE, CE_IMPORTANT, CE_NON_DEFERRABLE, CE_REPEAT_IGNORE
 
Constructor Summary
Html()
          Contructs a Html component to embed HTML tags.
Html(java.lang.String content)
          Contructs a Html component to embed HTML tags with the specified content.
 
Method Summary
 java.lang.String getContent()
          Returns the embedded content (i.e., HTML tags).
protected  boolean isChildable()
          Default: not childable.
protected  void renderProperties(ContentRenderer renderer)
          Renders the content of this component, excluding the enclosing tags and children.
 void setContent(java.lang.String content)
          Sets the embedded content (i.e., HTML tags).
 
Methods inherited from class org.zkoss.zul.impl.XulElement
clone, getContext, getCtrlKeys, getPopup, getTooltip, setContext, setContext, setCtrlKeys, setPopup, setPopup, setTooltip, setTooltip
 
Methods inherited from class org.zkoss.zk.ui.HtmlBasedComponent
focus, getAction, getDraggable, getDroppable, getExtraCtrl, getHeight, getHflex, getLeft, getRenderdefer, getSclass, getStyle, getTooltiptext, getTop, getVflex, getWidth, getZclass, getZindex, getZIndex, service, setAction, setClass, setDraggable, setDroppable, setFocus, setHeight, setHeightDirectly, setHflex, setHflexDirectly, setLeft, setLeftDirectly, setRenderdefer, setSclass, setStyle, setTooltiptext, setTop, setTopDirectly, setVflex, setWidth, setWidthDirectly, setZclass, setZindex, setZIndex, setZIndexDirectly
 
Methods inherited from class org.zkoss.zk.ui.AbstractComponent
addAnnotation, addAnnotation, addClientEvent, addEventHandler, addEventListener, addEventListener, addForward, addForward, addForward, addForward, addMoved, addScopeListener, addSharedEventHandlerMap, appendChild, applyProperties, beforeChildAdded, beforeChildRemoved, beforeParentChanged, detach, didActivate, didActivate, didDeserialize, didDeserialize, disableClientUpdate, equals, getAnnotatedProperties, getAnnotatedPropertiesBy, getAnnotation, getAnnotation, getAnnotations, getAnnotations, getAnnotations, getAttribute, getAttribute, getAttribute, getAttributeOrFellow, getAttributes, getAttributes, getAuService, getAutag, getChildren, getClientEvents, getDefaultMold, getDefinition, getDesktop, getEventHandler, getEventHandlerNames, getEventListenerMap, getEventListeners, getFellow, getFellow, getFellowIfAny, getFellowIfAny, getFellows, getFirstChild, getId, getLastChild, getListenerIterator, getMold, getNextSibling, getPage, getParent, getPreviousSibling, getRoot, getSpaceOwner, getStubonly, getTemplate, getTemplateNames, getUuid, getWidgetAttribute, getWidgetAttributeNames, getWidgetClass, getWidgetListener, getWidgetListenerNames, getWidgetOverride, getWidgetOverrideNames, hasAttribute, hasAttribute, hasAttribute, hasAttributeOrFellow, hasFellow, hasFellow, insertBefore, invalidate, isInvalidated, isListenerAvailable, isVisible, onChildAdded, onChildRemoved, onPageAttached, onPageDetached, onWrongValue, query, queryAll, redraw, redrawChildren, removeAttribute, removeAttribute, removeAttribute, removeChild, removeEventListener, removeForward, removeForward, removeScopeListener, render, render, render, replace, response, response, response, service, sessionDidActivate, sessionWillPassivate, setAttribute, setAttribute, setAttribute, setAuService, setAutag, setDefinition, setDefinition, setId, setMold, setPage, setPageBefore, setParent, setStubonly, setStubonly, setTemplate, setVisible, setVisibleDirectly, setWidgetAttribute, setWidgetClass, setWidgetListener, setWidgetOverride, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdateWidgetListener, smartUpdateWidgetOverride, toString, updateByClient, willPassivate, willPassivate, willSerialize, willSerialize
 
Methods inherited from class java.lang.Object
finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

Html

public Html()
Contructs a Html component to embed HTML tags.

Html

public Html(java.lang.String content)
Contructs a Html component to embed HTML tags with the specified content.

Method Detail

getContent

public java.lang.String getContent()
Returns the embedded content (i.e., HTML tags).

setContent

public void setContent(java.lang.String content)
Sets the embedded content (i.e., HTML tags).

Default: empty ("").

Deriving class can override it to return whatever it wants other than null.

Security Note

Unlike other methods, the content assigned to this method is generated directly to the browser without escaping. Thus, it is better not to have something input by the user to avoid any XSS attach.

renderProperties

protected void renderProperties(ContentRenderer renderer)
                         throws java.io.IOException
Description copied from class: HtmlBasedComponent
Renders the content of this component, excluding the enclosing tags and children.

See also ZK Client-side Reference: Property Rendering

Overrides:
renderProperties in class XulElement
Throws:
java.io.IOException

isChildable

protected boolean isChildable()
Default: not childable.

Overrides:
isChildable in class AbstractComponent
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