org.apache.myfaces.custom.navmenu.htmlnavmenu.AbstractHtmlPanelNavigationMenu Maven / Gradle / Ivy
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JSF components and utilities that can be used with any JSF implementation.
This library is compatible with both JSF1.1 and JSF1.2; however for JSF1.2 users there
is an alternative build of Tomahawk available that takes advantage of JSF1.2 features to
offer some additional benefits.
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.myfaces.custom.navmenu.htmlnavmenu;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import javax.faces.component.NamingContainer;
import javax.faces.component.UIComponent;
import javax.faces.component.UIViewRoot;
import javax.faces.context.FacesContext;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.myfaces.component.AlignProperty;
import org.apache.myfaces.component.DataProperties;
import org.apache.myfaces.component.EventAware;
import org.apache.myfaces.component.PanelProperties;
import org.apache.myfaces.component.UniversalProperties;
import org.apache.myfaces.component.html.ext.HtmlPanelGroup;
/**
* Renders a vertical menu structure with support for nested menu items.
*
* The menu is rendered as unordered List. The menu-tree can be
* dynamically build using NavigationMenuItem(s).
*
* Unless otherwise specified, all attributes accept static values or EL expressions.
*
* Many thanks to the guys from Swiss Federal Institute of Intellectual Property and Marc Bouquet
* for helping to develop this component.
*
* @JSFComponent
* name = "t:panelNavigation2"
* class = "org.apache.myfaces.custom.navmenu.htmlnavmenu.HtmlPanelNavigationMenu"
* tagClass = "org.apache.myfaces.custom.navmenu.htmlnavmenu.HtmlPanelNavigationMenuTag"
* @since 1.1.7
* @author Manfred Geiler
* @author Thomas Spiegl
*/
public abstract class AbstractHtmlPanelNavigationMenu extends HtmlPanelGroup
implements NamingContainer, UniversalProperties, EventAware,
PanelProperties, AlignProperty, DataProperties
{
private static final Log log = LogFactory.getLog(AbstractHtmlPanelNavigationMenu.class);
public static final String COMPONENT_TYPE = "org.apache.myfaces.HtmlPanelNavigationMenu";
public static final String COMPONENT_FAMILY = "javax.faces.Panel";
private static final String DEFAULT_RENDERER_TYPE = "org.apache.myfaces.NavigationMenu";
static final String PREVIOUS_VIEW_ROOT = AbstractHtmlPanelNavigationMenu.class.getName() + ".PREVIOUS_VIEW_ROOT";
private static final int DEFAULT_BORDER = Integer.MIN_VALUE;
private boolean _itemOpenActiveStatesRestored = false;
public void decode(FacesContext context)
{
super.decode(context); //To change body of overridden methods use File | Settings | File Templates.
//Save the current view root for later reference...
context.getExternalContext().getRequestMap().put(PREVIOUS_VIEW_ROOT, context.getViewRoot());
//...and remember that this instance needs NO special treatment on rendering:
_itemOpenActiveStatesRestored = true;
}
public void encodeBegin(FacesContext context) throws IOException
{
if (!_itemOpenActiveStatesRestored && getChildCount() > 0)
{
UIViewRoot previousRoot = (UIViewRoot)context.getExternalContext().getRequestMap().get(PREVIOUS_VIEW_ROOT);
if (previousRoot != null)
{
if(previousRoot.findComponent(getClientId(context)) instanceof AbstractHtmlPanelNavigationMenu)
{
restoreOpenActiveStates(context, previousRoot, getChildren());
}
}
else
{
//no previous root, means no decode was done
//--> a new request
}
}
super.encodeBegin(context); //To change body of overridden methods use File | Settings | File Templates.
}
public void restoreOpenActiveStates(FacesContext facesContext,
UIViewRoot previousRoot,
List children)
{
for (Iterator it = children.iterator(); it.hasNext(); )
{
UIComponent child = (UIComponent)it.next();
UIComponent prevItem = (UIComponent)previousRoot.findComponent(child.getClientId(facesContext));
if (prevItem instanceof HtmlCommandNavigationItem &&
child instanceof HtmlCommandNavigationItem)
{
HtmlCommandNavigationItem previousItem = (HtmlCommandNavigationItem)prevItem;
if (previousItem != null)
{
((HtmlCommandNavigationItem)child).setOpen(previousItem.isOpen());
((HtmlCommandNavigationItem)child).setActive(previousItem.isActive());
}
else
{
log.debug("Navigation item " + child.getClientId(facesContext) + " not found in previous view.");
}
if (child.getChildCount() > 0)
{
restoreOpenActiveStates(facesContext, previousRoot, child.getChildren());
}
}
}
}
/**
* The CSS class of closed navigation items.
*
* @JSFProperty
*/
public abstract String getItemClass();
/**
* The CSS class of open navigation items.
*
* @JSFProperty
*/
public abstract String getOpenItemClass();
/**
* The CSS class of open navigation items.
*
* @JSFProperty
*/
public abstract String getActiveItemClass();
/**
* The CSS class for the td element of a separator.
*
* @JSFProperty
*/
public abstract String getSeparatorClass();
/**
* The CSS Style of closed navigation items.
*
* @JSFProperty
*/
public abstract String getItemStyle();
/**
* The CSS Style of open navigation items.
*
* @JSFProperty
*/
public abstract String getOpenItemStyle();
/**
* The CSS Style of the active navigation item.
*
* @JSFProperty
*/
public abstract String getActiveItemStyle();
/**
* The CSS Style for the td element of a separator.
*
* @JSFProperty
*/
public abstract String getSeparatorStyle();
/**
* 'table' or 'list' Layout (default is 'table')
*
* @JSFProperty
*/
public abstract String getLayout();
/**
* @JSFProperty
* tagExcluded="true"
* literalOnly = "true"
* defaultValue = "false"
*/
public abstract Boolean getPreprocessed();
/**
* If set to true all Items are expanded from the beginning and never closed.
*
* @JSFProperty
* defaultValue="false"
*/
public abstract boolean isExpandAll();
/**
* If set to true all Items are rendered and other methods, like
* CSS should be used to hide them as necessary
*
* @JSFProperty
* defaultValue="false"
*/
public abstract boolean isRenderAll();
/**
* When set instead of a Hyperlink a span tag is rendered in the corresponding Component
*
* @JSFProperty
* defaultValue="false"
*/
public abstract boolean isDisabled();
/**
* CSS-Style Attribute to render when disabled is true
*
* @JSFProperty
*/
public abstract String getDisabledStyle();
/**
* CSS-Style Class to use when disabled is true
*
* @JSFProperty
*/
public abstract String getDisabledStyleClass();
}