public class Head extends AbstractTag
AbstractTag.ExtraCtrlAbstractComponent.Children_tagnmAPPLICATION_SCOPE, COMPONENT_SCOPE, DESKTOP_SCOPE, PAGE_SCOPE, REQUEST_SCOPE, SESSION_SCOPE, SPACE_SCOPEAFTER_CHILD_ADDED, AFTER_CHILD_REMOVED, AFTER_PAGE_ATTACHED, AFTER_PAGE_DETACHED, CE_BUSY_IGNORE, CE_DUPLICATE_IGNORE, CE_IMPORTANT, CE_NON_DEFERRABLE, CE_REPEAT_IGNORE| Constructor and Description |
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Head() |
| Modifier and Type | Method and Description |
|---|---|
void |
beforeParentChanged(Component parent)
Default: If parent is null, execute the @Destroy method if any.
|
void |
redraw(java.io.Writer out)
Redraws this component and all its descendants.
|
protected boolean |
shallHideId()
Don't generate the id attribute.
|
clone, getAccesskey, getDir, getDynamicProperty, getExtraCtrl, getLang, getPropertyAccess, getSclass, getStyle, getTabindex, getTag, getTitle, getWidgetClass, hasDynamicProperty, isChildable, isContenteditable, isDraggable, isHidden, isOrphanTag, isSpellcheck, redrawChildrenDirectly, renderProperties, setAccesskey, setContenteditable, setDir, setDraggable, setDynamicProperty, setHidden, setLang, setSclass, setSpellcheck, setStyle, setTabindex, setTitle, setVisible, toStringaddAnnotation, addAnnotation, addCallback, addClientEvent, addEventHandler, addEventListener, addEventListener, addForward, addForward, addForward, addForward, addMoved, addRedrawCallback, addScopeListener, addShadowRoot, addShadowRootBefore, addSharedEventHandlerMap, appendChild, applyProperties, beforeChildAdded, beforeChildRemoved, detach, didActivate, didActivate, didDeserialize, didDeserialize, disableBindingAnnotation, disableClientUpdate, enableBindingAnnotation, getAnnotatedProperties, getAnnotatedPropertiesBy, getAnnotation, getAnnotation, getAnnotations, getAnnotations, getAnnotations, getAttribute, getAttribute, getAttribute, getAttributeOrFellow, getAttributes, getAttributes, getAuService, getAutag, getCallback, getChildren, getClientAttribute, getClientDataAttribute, getClientEvents, getDefaultMold, getDefinition, getDesktop, getEventHandler, getEventHandlerNames, getEventListenerMap, getEventListeners, getFellow, getFellow, getFellowIfAny, getFellowIfAny, getFellows, getFirstChild, getId, getLastChild, getListenerIterator, getMold, getNextSibling, getPage, getParent, getPreviousSibling, getRedrawCallback, getRoot, getShadowFellowIfAny, getShadowRoots, getShadowVariable, getShadowVariable, getShadowVariable0, getSpaceOwner, getSpecialRendererOutput, getStubonly, getSubBindingAnnotationCount, getTemplate, getTemplateNames, getUuid, getWidgetAttribute, getWidgetAttributeNames, getWidgetListener, getWidgetListenerNames, getWidgetOverride, getWidgetOverrideNames, hasAttribute, hasAttribute, hasAttribute, hasAttributeOrFellow, hasBindingAnnotation, hasFellow, hasFellow, hasSubBindingAnnotation, insertBefore, invalidate, invalidatePartial, isInitialized, isInvalidated, isListenerAvailable, isVisible, onChildAdded, onChildRemoved, onPageAttached, onPageDetached, onWrongValue, query, queryAll, redrawChildren, removeAttribute, removeAttribute, removeAttribute, removeCallback, removeChild, removeEventListener, removeForward, removeForward, removeRedrawCallback, removeScopeListener, removeShadowRoot, render, render, render, replace, response, response, response, service, service, sessionDidActivate, sessionWillPassivate, setAttribute, setAttribute, setAttribute, setAuService, setAutag, setClientAttribute, setClientDataAttribute, setDefinition, setDefinition, setId, setMold, setPage, setPageBefore, setParent, setStubonly, setStubonly, setSubBindingAnnotationCount, setTemplate, setVisibleDirectly, setWidgetAttribute, setWidgetClass, setWidgetListener, setWidgetOverride, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdateWidgetListener, smartUpdateWidgetOverride, updateByClient, updateSubBindingAnnotationCount, willPassivate, willPassivate, willSerialize, willSerializeequals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitinvalidatePartialprotected boolean shallHideId()
shallHideId in class AbstractTagpublic void redraw(java.io.Writer out)
throws java.io.IOException
AbstractComponentDefault: It uses JsContentRenderer to render all information
in JavaScript codes. For devices that don't support JavaScript,
it must override this method.
To generate all information, it first invokes
AbstractComponent.renderProperties(org.zkoss.zk.ui.sys.ContentRenderer) to render component's
properties,
and then AbstractComponent.redrawChildren(java.io.Writer) to redraw children (and descendants)
(by calling their AbstractComponent.redraw(java.io.Writer)).
If a derived class wants to render more properties, it can override
AbstractComponent.renderProperties(org.zkoss.zk.ui.sys.ContentRenderer).
If a derived class renders only a subset of its children
(such as paging/cropping), it could override AbstractComponent.redrawChildren(java.io.Writer).
If a deriving class wants to do something before
AbstractComponent.renderProperties(org.zkoss.zk.ui.sys.ContentRenderer), it has to override AbstractComponent.redraw(java.io.Writer).
If a deriving class doesn't want to render in JavaScript codes,
it has to override AbstractComponent.redraw(java.io.Writer) with the proper implementation
of ContentRenderer.
redraw in interface ComponentCtrlredraw in class AbstractTagjava.io.IOExceptionpublic void beforeParentChanged(Component parent)
AbstractComponentbeforeParentChanged in interface ComponentCtrlbeforeParentChanged in class AbstractComponentparent - the new parent. If null, it means detachment.ComponentCtrl.beforeParentChanged(org.zkoss.zk.ui.Component)Copyright © 2005-2021 Potix Corporation. All Rights Reserved.