/**
* Copyright (c) 2000-2014 Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*/
package com.liferay.faces.alloy.component.accordion;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import javax.faces.component.FacesComponent;
import javax.faces.component.behavior.AjaxBehavior;
import javax.faces.component.behavior.Behavior;
import javax.faces.component.behavior.ClientBehavior;
import javax.faces.component.behavior.ClientBehaviorHolder;
import javax.faces.context.FacesContext;
import javax.faces.event.AjaxBehaviorEvent;
import javax.faces.event.FacesEvent;
import com.liferay.faces.alloy.component.tab.Tab;
import com.liferay.faces.alloy.component.tab.TabCollapseEvent;
import com.liferay.faces.alloy.component.tab.TabExpandEvent;
import com.liferay.faces.alloy.component.tab.TabUtil;
import com.liferay.faces.alloy.renderkit.AlloyRendererUtil;
import com.liferay.faces.util.component.ComponentUtil;
import com.liferay.faces.util.helper.IntegerHelper;
import com.liferay.faces.util.lang.FacesConstants;
import com.liferay.faces.util.lang.StringPool;
/**
* @author Vernon Singleton
*/
@FacesComponent(value = Accordion.COMPONENT_TYPE)
public class Accordion extends AccordionBase implements ClientBehaviorHolder {
// Public Constants
public static final String COMPONENT_TYPE = "com.liferay.faces.alloy.component.accordion.Accordion";
public static final String RENDERER_TYPE = "com.liferay.faces.alloy.component.accordion.AccordionRenderer";
public static final String STYLE_CLASS_NAME = "alloy-accordion";
// Private Constants
private static final Collection<String> EVENT_NAMES = Collections.unmodifiableCollection(Arrays.asList(
TabCollapseEvent.TAB_COLLAPSE, TabExpandEvent.TAB_EXPAND));
public Accordion() {
super();
setRendererType(RENDERER_TYPE);
}
@Override
public void addClientBehavior(String eventName, ClientBehavior clientBehavior) {
// If the specified client behavior is an Ajax behavior, then the alloy:accordion component tag has an f:ajax
// child tag. Register a listener that can respond to the Ajax behavior by invoking the tabCollapseListener or
// tabExpandListener that may have been specified.
if (clientBehavior instanceof AjaxBehavior) {
AjaxBehavior ajaxBehavior = (AjaxBehavior) clientBehavior;
ajaxBehavior.addAjaxBehaviorListener(new AccordionBehaviorListener());
}
super.addClientBehavior(eventName, clientBehavior);
}
@Override
public void queueEvent(FacesEvent facesEvent) {
// This method is called by the AjaxBehavior renderer's decode() method. If the specified event is an ajax
// behavior event that indicates a tab being collapsed/expanded, then
if (facesEvent instanceof AjaxBehaviorEvent) {
// Determine the client-side state of the selected tab index.
FacesContext facesContext = FacesContext.getCurrentInstance();
Map<String, String> requestParameterMap = facesContext.getExternalContext().getRequestParameterMap();
String clientId = getClientId(facesContext);
int selectedIndex = IntegerHelper.toInteger(requestParameterMap.get(
clientId + AccordionRenderer.SELECTED_INDEX));
// If iterating over a data model, then determine the row data and tab associated with the data model
// iteration.
Object rowData = null;
Tab tab = null;
String var = getVar();
if (var != null) {
setRowIndex(selectedIndex);
rowData = getRowData();
tab = TabUtil.getFirstChildTab(this);
setRowIndex(-1);
}
// Otherwise, determine the tab associated with the client-side state of the selected tab index.
else {
List<Tab> childTabs = TabUtil.getChildTabs(this);
if (childTabs.size() >= (selectedIndex + 1)) {
tab = childTabs.get(selectedIndex);
}
}
// Queue an accordion tab event rather than the specified faces event.
AjaxBehaviorEvent behaviorEvent = (AjaxBehaviorEvent) facesEvent;
Behavior behavior = behaviorEvent.getBehavior();
String eventName = requestParameterMap.get(FacesConstants.JAVAX_FACES_BEHAVIOR_EVENT);
if (TabCollapseEvent.TAB_COLLAPSE.equals(eventName)) {
TabCollapseEvent tabCollapseEvent = new TabCollapseEvent(this, behavior, tab, rowData);
super.queueEvent(tabCollapseEvent);
}
else if (TabExpandEvent.TAB_EXPAND.equals(eventName)) {
TabExpandEvent tabExpandEvent = new TabExpandEvent(this, behavior, tab, rowData);
super.queueEvent(tabExpandEvent);
}
}
// Otherwise, queue the specified faces event.
else {
super.queueEvent(facesEvent);
}
}
@Override
public String getDefaultEventName() {
return TabExpandEvent.TAB_EXPAND;
}
@Override
public Collection<String> getEventNames() {
return EVENT_NAMES;
}
@Override
public String getStyle() {
String style = super.getStyle();
// Initially style the outermost <div> with "display:none;" in order to prevent blinking when Alloy's
// JavaScript attempts to hide the contentBox.
if (style == null) {
style = AlloyRendererUtil.DISPLAY_NONE;
}
else {
style = style + StringPool.SEMICOLON + AlloyRendererUtil.DISPLAY_NONE;
}
return style;
}
@Override
public String getStyleClass() {
String styleClass = (String) getStateHelper().eval(AccordionPropertyKeys.styleClass, null);
return ComponentUtil.concatCssClasses(styleClass, STYLE_CLASS_NAME);
}
}