/*
* Copyright 2009 Prime Technology.
*
* 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 javax.faces.application.StateManager;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.servlet.ServletResponse;
import org.primefaces.component.tabview.Tab;
import org.primefaces.renderkit.CoreRenderer;
import org.primefaces.renderkit.PartialRenderer;
import org.primefaces.util.ComponentUtils;
import org.primefaces.util.RendererUtils;
public class WizardRenderer extends CoreRenderer implements PartialRenderer {
public void encodeEnd(FacesContext facesContext, UIComponent component) throws IOException {
Wizard wizard = (Wizard) component;
encodeScript(facesContext, wizard);
encodeMarkup(facesContext, wizard);
}
private boolean isStepValid(FacesContext facesContext, Wizard wizard) {
String wizardClientId = wizard.getClientId(facesContext);
boolean valid = true;
for(Iterator<String> iterator = facesContext.getClientIdsWithMessages(); iterator.hasNext();) {
String clientId = iterator.next();
if(clientId.indexOf(wizardClientId) != -1) {
valid = false;
break;
}
};
return valid;
}
public void encodePartially(FacesContext facesContext, UIComponent component) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
Wizard wizard = (Wizard) component;
boolean success = isStepValid(facesContext, wizard);
int stepToGo = Integer.valueOf(facesContext.getExternalContext().getRequestParameterMap().get("stepToGo")).intValue();
int currentStep = Integer.valueOf(facesContext.getExternalContext().getRequestParameterMap().get("currentStep")).intValue();
int tabIndexToDisplay = success ? stepToGo : currentStep;
wizard.setStep(tabIndexToDisplay); //save state
Tab tabToDisplay = (Tab) wizard.getChildren().get(tabIndexToDisplay);
ServletResponse response = (ServletResponse) facesContext.getExternalContext().getResponse();
response.setContentType("text/xml");
writer.write("<wizardresponse>");
writer.write("<wizardtab>");
writer.write("<success>");
writer.write(String.valueOf(success));
writer.write("</success>");
writer.write("<content>");
RendererUtils.startCDATA(facesContext);
renderChild(facesContext, tabToDisplay);
RendererUtils.endCDATA(facesContext);
writer.write("</content>");
writer.write("</wizardtab>");
writer.write("<state>");
RendererUtils.startCDATA(facesContext);
StateManager stateManager = facesContext.getApplication().getStateManager();
stateManager.writeState(facesContext, stateManager.saveView(facesContext));
RendererUtils.endCDATA(facesContext);
writer.write("</state>");
writer.write("</wizardresponse>");
}
private void encodeScript(FacesContext facesContext, Wizard wizard) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
String clientId = wizard.getClientId(facesContext);
String widgetVar = createUniqueWidgetVar(facesContext, wizard);
writer.startElement("script", null);
writer.writeAttribute("type", "text/javascript", null);
writer.write("PrimeFaces.onContentReady('" + clientId + "', function() {\n");
writer.write(widgetVar + " = new PrimeFaces.widget.Wizard('" + clientId + "',{");
writer.write("type:'" + wizard.getEffect() + "'");
writer.write(",actionURL:'" + getActionURL(facesContext) + "'");
writer.write(",size:" + wizard.getChildCount());
writer.write(",formClientId:'" + ComponentUtils.findParentForm(facesContext, wizard).getClientId(facesContext) + "'");
writer.write(",viewportClass:'pf-wizard-viewport'");
if(wizard.getStep() != 0) writer.write(",index:" + wizard.getStep() + "");
if(wizard.getSpeed() != 500) writer.write(",speed:" + wizard.getSpeed());
if(wizard.getWidth() != 400) writer.write(",width:" + wizard.getWidth());
if(wizard.getHeight() != 400) writer.write(",height:" + wizard.getHeight());
writer.write("});\n});\n");
writer.endElement("script");
}
private void encodeMarkup(FacesContext facesContext, Wizard wizard) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
String clientId = wizard.getClientId(facesContext);
String widgetVar = createUniqueWidgetVar(facesContext, wizard);
writer.startElement("div", wizard);
writer.writeAttribute("id", clientId, "id");
String dim = "height:" + wizard.getHeight() + "px;width:" + wizard.getWidth() + "px";
String style = wizard.getStyle() == null ? dim : dim + ";" + wizard.getStyle();
writer.writeAttribute("style", style, "style");
if(wizard.getStyleClass() != null) {
writer.writeAttribute("class", wizard.getStyleClass(), "styleClass");
}
if(!wizard.isCustomUI()) {
encodeNavigators(facesContext, wizard, widgetVar);
}
encodeTabs(facesContext, wizard);
writer.endElement("div");
}
private void encodeNavigators(FacesContext facesContext, Wizard wizard, String widgetVar) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
String clientId = wizard.getClientId(facesContext);
writer.startElement("div", null);
writer.writeAttribute("class", "pf-wizard-nav", null);
writer.startElement("div", null);
writer.writeAttribute("id", clientId + "_prev", null);
writer.writeAttribute("class", "pf-wizard-prev", null);
if(wizard.getStep() == 0) {
writer.writeAttribute("style", "display:none", null);
}
writer.writeAttribute("onclick", widgetVar + ".previous();", null);
writer.endElement("div");
writer.startElement("div", null);
writer.writeAttribute("id", clientId + "_next", null);
writer.writeAttribute("onclick", widgetVar + ".next();", null);
writer.writeAttribute("class", "pf-wizard-next", null);
if(wizard.getStep() == (wizard.getChildCount()-1)) {
writer.writeAttribute("style", "display:none", null);
}
writer.endElement("div");
writer.endElement("div");
}
private void encodeTabs(FacesContext facesContext, Wizard wizard) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
String clientId = wizard.getClientId(facesContext);
for (int i = 0; i < wizard.getChildren().size(); i++) {
UIComponent kid = wizard.getChildren().get(i);
if(kid.isRendered()) {
Tab tab = (Tab) kid;
writer.startElement("div", wizard);
writer.writeAttribute("id", clientId + "_tab" + i, null);
writer.writeAttribute("class", "pf-wizard-tab", null);
if(i == wizard.getStep()) {
renderChild(facesContext, tab);
}
writer.endElement("div");
}
}
}
@Override
public void encodeChildren(FacesContext facesContext, UIComponent component) throws IOException {
// Render children in encodeEnd
}
@Override
public boolean getRendersChildren() {
return true;
}
}