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org.primefaces.component.wizard.WizardRenderer Maven / Gradle / Ivy
/*
* Copyright 2009-2013 PrimeTek.
*
* Licensed 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.primefaces.component.wizard;
import java.io.IOException;
import java.util.Iterator;
import java.util.Map;
import javax.faces.FacesException;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.event.PhaseId;
import org.primefaces.component.tabview.Tab;
import org.primefaces.context.RequestContext;
import org.primefaces.event.FlowEvent;
import org.primefaces.renderkit.CoreRenderer;
import org.primefaces.util.ComponentUtils;
import org.primefaces.util.HTML;
public class WizardRenderer extends CoreRenderer {
@Override
public void decode(FacesContext context, UIComponent component) {
Wizard wizard = (Wizard) component;
if(wizard.isWizardRequest(context)) {
Map params = context.getExternalContext().getRequestParameterMap();
String clientId = wizard.getClientId(context);
String stepToGo = params.get(clientId + "_stepToGo");
String currentStep = wizard.getStep();
FlowEvent event = new FlowEvent(wizard, currentStep, stepToGo);
event.setPhaseId(PhaseId.INVOKE_APPLICATION);
wizard.queueEvent(event);
}
}
@Override
public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
Wizard wizard = (Wizard) component;
if(wizard.isWizardRequest(context)) {
encodeStep(context, wizard);
}
else {
encodeMarkup(context, wizard);
encodeScript(context, wizard);
}
}
protected void encodeStep(FacesContext context, Wizard wizard) throws IOException {
String stepToDisplay = wizard.getStep();
UIComponent tabToDisplay = null;
for(UIComponent child : wizard.getChildren()) {
if(child.getId().equals(stepToDisplay)) {
tabToDisplay = child;
}
}
tabToDisplay.encodeAll(context);
RequestContext.getCurrentInstance().addCallbackParam("currentStep", wizard.getStep());
}
protected void encodeScript(FacesContext context, Wizard wizard) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String clientId = wizard.getClientId(context);
UIComponent form = ComponentUtils.findParentForm(context, wizard);
if (form == null) {
throw new FacesException("Wizard : \"" + clientId + "\" must be inside a form element");
}
startScript(writer, clientId);
writer.write("$(function() {");
writer.write("PrimeFaces.cw('Wizard','" + wizard.resolveWidgetVar() + "',{");
writer.write("id:'" + clientId + "'");
writer.write(",showStepStatus:" + wizard.isShowStepStatus());
writer.write(",showNavBar:" + wizard.isShowNavBar());
if(wizard.getOnback() != null) {
writer.write(",onback:function(){" + wizard.getOnback() + "}");
}
if(wizard.getOnnext() != null) {
writer.write(",onnext:function(){" + wizard.getOnnext() + "}");
}
//all steps
writer.write(",steps:[");
boolean firstStep = true;
String defaultStep = null;
for (Iterator children = wizard.getChildren().iterator(); children.hasNext();) {
UIComponent child = children.next();
if (child instanceof Tab && child.isRendered()) {
Tab tab = (Tab) child;
if (defaultStep == null) {
defaultStep = tab.getId();
}
if (!firstStep) {
writer.write(",");
} else {
firstStep = false;
}
writer.write("'" + tab.getId() + "'");
}
}
writer.write("]");
//current step
if (wizard.getStep() == null) {
wizard.setStep(defaultStep);
}
writer.write(",initialStep:'" + wizard.getStep() + "'");
writer.write("});});");
endScript(writer);
}
protected void encodeMarkup(FacesContext facesContext, Wizard wizard) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
String clientId = wizard.getClientId(facesContext);
String styleClass = wizard.getStyleClass() == null ? "ui-wizard ui-widget" : "ui-wizard ui-widget " + wizard.getStyleClass();
writer.startElement("div", wizard);
writer.writeAttribute("id", clientId, "id");
writer.writeAttribute("class", styleClass, "styleClass");
if(wizard.getStyle() != null) {
writer.writeAttribute("style", wizard.getStyle(), "style");
}
if(wizard.isShowStepStatus()) {
encodeStepStatus(facesContext, wizard);
}
encodeContent(facesContext, wizard);
if(wizard.isShowNavBar()) {
encodeNavigators(facesContext, wizard);
}
writer.endElement("div");
}
protected void encodeCurrentStep(FacesContext facesContext, Wizard wizard) throws IOException {
for (UIComponent child : wizard.getChildren()) {
if (child instanceof Tab && child.isRendered()) {
Tab tab = (Tab) child;
if ((wizard.getStep() == null || tab.getId().equals(wizard.getStep()))) {
tab.encodeAll(facesContext);
break;
}
}
}
}
protected void encodeNavigators(FacesContext facesContext, Wizard wizard) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
String clientId = wizard.getClientId(facesContext);
writer.startElement("div", null);
writer.writeAttribute("class", "ui-wizard-navbar ui-helper-clearfix", null);
encodeNavigator(facesContext, wizard, clientId + "_back", wizard.getBackLabel(), Wizard.BACK_BUTTON_CLASS, "ui-icon-arrowthick-1-w");
encodeNavigator(facesContext, wizard, clientId + "_next", wizard.getNextLabel(), Wizard.NEXT_BUTTON_CLASS, "ui-icon-arrowthick-1-e");
writer.endElement("div");
}
protected void encodeContent(FacesContext facesContext, Wizard wizard) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
String clientId = wizard.getClientId(facesContext);
writer.startElement("div", null);
writer.writeAttribute("id", clientId + "_content", "id");
writer.writeAttribute("class", "ui-wizard-content", null);
encodeCurrentStep(facesContext, wizard);
writer.endElement("div");
}
protected void encodeStepStatus(FacesContext context, Wizard wizard) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String currentStep = wizard.getStep();
boolean currentFound = false;
writer.startElement("ul", null);
writer.writeAttribute("class", Wizard.STEP_STATUS_CLASS, null);
for(UIComponent child : wizard.getChildren()) {
if(child instanceof Tab && child.isRendered()) {
Tab tab = (Tab) child;
boolean active = (!currentFound) && (currentStep == null || tab.getId().equals(currentStep));
String titleStyleClass = active ? Wizard.ACTIVE_STEP_CLASS : Wizard.STEP_CLASS;
if(tab.getTitleStyleClass() != null) {
titleStyleClass = titleStyleClass + " " + tab.getTitleStyleClass();
}
if(active) {
currentFound = true;
}
writer.startElement("li", null);
writer.writeAttribute("class", titleStyleClass, null);
if(tab.getTitleStyle() != null) writer.writeAttribute("style", tab.getTitleStyle(), null);
if(tab.getTitletip() != null) writer.writeAttribute("title", tab.getTitletip(), null);
writer.write(tab.getTitle());
writer.endElement("li");
}
}
writer.endElement("ul");
}
protected void encodeNavigator(FacesContext facesContext, Wizard wizard, String id, String label, String buttonClass, String icon) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
writer.startElement("button", null);
writer.writeAttribute("id", id, null);
writer.writeAttribute("name", id, null);
writer.writeAttribute("type", "button", null);
writer.writeAttribute("class", HTML.BUTTON_TEXT_ICON_LEFT_BUTTON_CLASS + " " + buttonClass, null);
//button icon
String iconClass = HTML.BUTTON_LEFT_ICON_CLASS + " " + icon;
writer.startElement("span", null);
writer.writeAttribute("class", iconClass, null);
writer.endElement("span");
//text
writer.startElement("span", null);
writer.writeAttribute("class", HTML.BUTTON_TEXT_CLASS, null);
writer.writeText(label, "value");
writer.endElement("span");
writer.endElement("button");
}
@Override
public void encodeChildren(FacesContext facesContext, UIComponent component) throws IOException {
//Rendering happens on encodeEnd
}
@Override
public boolean getRendersChildren() {
return true;
}
}
