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org.richfaces.renderkit.html.AjaxStatusRenderer Maven / Gradle / Ivy
/**
* License Agreement.
*
* Rich Faces - Natural Ajax for Java Server Faces (JSF)
*
* Copyright (C) 2007 Exadel, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation.
*
* 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.richfaces.renderkit.html;
import static org.richfaces.renderkit.RenderKitUtils.addToScriptHash;
import static org.richfaces.renderkit.RenderKitUtils.renderAttribute;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import javax.faces.application.ResourceDependencies;
import javax.faces.application.ResourceDependency;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.ajax4jsf.javascript.JSFunction;
import org.richfaces.cdk.annotations.JsfRenderer;
import org.richfaces.component.AbstractAjaxStatus;
import org.richfaces.component.util.HtmlUtil;
import org.richfaces.renderkit.RenderKitUtils.ScriptHashVariableWrapper;
import org.richfaces.renderkit.HtmlConstants;
import org.richfaces.renderkit.RendererBase;
import org.richfaces.renderkit.util.HandlersChain;
/**
* @author Nick Belaevski
*/
@ResourceDependencies({ @ResourceDependency(library = "javax.faces", name = "jsf.js"),
@ResourceDependency(library = "org.richfaces", name = "jquery.js"),
@ResourceDependency(library = "org.richfaces", name = "richfaces.js"),
@ResourceDependency(library = "org.richfaces", name = "richfaces-queue.reslib"),
@ResourceDependency(library = "org.richfaces", name = "richfaces-base-component.js"),
@ResourceDependency(library = "org.richfaces", name = "status.js") })
@JsfRenderer(type = "org.richfaces.StatusRenderer", family = AbstractAjaxStatus.COMPONENT_FAMILY)
public class AjaxStatusRenderer extends RendererBase {
private static final String START = "start";
private static final String STOP = "stop";
private static final String ERROR = "error";
private static final String[] EVENT_NAMES = { "start", "stop", "error", "success" };
private static enum StatusState {
// NOTE: states encode order is important for script!
start(START),
error(ERROR) {
{
this.setOptional();
}
},
stop(STOP) {
{
this.setInitial();
}
};
private String stateName;
private String styleAttributeName;
private String styleClassAttributeName;
private String textAttributeName;
private String defaultStyleClass;
private boolean initial;
private boolean optional;
private StatusState(String stateName) {
this.stateName = stateName;
this.styleAttributeName = stateName + "Style";
this.styleClassAttributeName = stateName + "StyleClass";
this.textAttributeName = stateName + "Text";
this.defaultStyleClass = "rf-st-" + stateName;
}
public String getStyleAttributeName() {
return styleAttributeName;
}
public String getStyleClassAttributeName() {
return styleClassAttributeName;
}
public String getFacetName() {
return stateName;
}
public String getTextAttributeName() {
return textAttributeName;
}
public String getDefaultStyleClass() {
return defaultStyleClass;
}
public boolean isInitial() {
return initial;
}
public boolean isOptional() {
return optional;
}
protected void setOptional() {
this.optional = true;
}
protected void setInitial() {
this.initial = true;
}
}
protected void encodeState(FacesContext facesContext, AbstractAjaxStatus status, StatusState state) throws IOException {
Map statusAttributes = status.getAttributes();
UIComponent stateFacet = status.getFacet(state.getFacetName());
String stateText = null;
if (stateFacet == null) {
stateText = (String) statusAttributes.get(state.getTextAttributeName());
}
if (state.isOptional() && stateFacet == null && stateText == null) {
return;
}
ResponseWriter writer = facesContext.getResponseWriter();
writer.startElement(HtmlConstants.SPAN_ELEM, status);
String stateStyle = (String) statusAttributes.get(state.getStyleAttributeName());
renderAttribute(facesContext, HtmlConstants.STYLE_ATTRIBUTE,
HtmlUtil.concatStyles(stateStyle, state.isInitial() ? null : "display:none"));
String stateStyleClass = (String) statusAttributes.get(state.getStyleClassAttributeName());
renderAttribute(facesContext, HtmlConstants.CLASS_ATTRIBUTE,
HtmlUtil.concatClasses(state.getDefaultStyleClass(), stateStyleClass));
if (stateFacet != null && stateFacet.isRendered()) {
stateFacet.encodeAll(facesContext);
} else {
if (stateText != null) {
writer.writeText(stateText, null);
}
}
writer.endElement(HtmlConstants.SPAN_ELEM);
}
@Override
public void doEncodeEnd(ResponseWriter writer, FacesContext context, UIComponent component) throws IOException {
super.doEncodeEnd(writer, context, component);
AbstractAjaxStatus ajaxStatus = (AbstractAjaxStatus) component;
writer.startElement(HtmlConstants.SPAN_ELEM, component);
String clientId = component.getClientId(context);
writer.writeAttribute(HtmlConstants.ID_ATTRIBUTE, clientId, "id");
for (StatusState state : StatusState.values()) {
encodeState(context, ajaxStatus, state);
}
writer.startElement(HtmlConstants.SCRIPT_ELEM, component);
writer.writeAttribute(HtmlConstants.TYPE_ATTR, HtmlConstants.TEXT_JAVASCRIPT_TYPE, null);
JSFunction statusConstructor = new JSFunction("new RichFaces.ui.Status", clientId);
Map options = new HashMap();
Map attributes = ajaxStatus.getAttributes();
for (String eventName : EVENT_NAMES) {
String eventAttribute = "on" + eventName;
HandlersChain handlersChain = new HandlersChain(context, component, true);
handlersChain.addInlineHandlerFromAttribute(eventAttribute);
handlersChain.addBehaviors(eventName);
addToScriptHash(options, eventAttribute, handlersChain.toScript(), null, ScriptHashVariableWrapper.eventHandler);
}
addToScriptHash(options, "statusName", attributes.get("name"));
if (!options.isEmpty()) {
statusConstructor.addParameter(options);
}
writer.writeText(statusConstructor.toScript(), null);
writer.endElement(HtmlConstants.SCRIPT_ELEM);
writer.endElement(HtmlConstants.SPAN_ELEM);
}
/*
* (non-Javadoc)
*
* @see org.ajax4jsf.renderkit.RendererBase#getComponentClass()
*/
@Override
protected Class getComponentClass() {
return AbstractAjaxStatus.class;
}
}
