org.icefaces.ace.component.radiobuttons.RadioButtonsRenderer Maven / Gradle / Ivy
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The advanced component library for ICEfaces.
/*
* Original Code Copyright Prime Technology.
* Subsequent Code Modifications Copyright 2011-2014 ICEsoft Technologies Canada Corp. (c)
*
* 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.
*
* NOTE THIS CODE HAS BEEN MODIFIED FROM ORIGINAL FORM
*
* Subsequent Code Modifications have been made and contributed by ICEsoft Technologies Canada Corp. (c).
*
* Code Modification 1: Integrated with ICEfaces Advanced Component Environment.
* Contributors: ICEsoft Technologies Canada Corp. (c)
*
* Code Modification 2: (ICE-6978) Used JSONBuilder to add the functionality of escaping JS output.
* Contributors: ICEsoft Technologies Canada Corp. (c)
*/
package org.icefaces.ace.component.radiobuttons;
import org.icefaces.render.MandatoryResourceComponent;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import java.io.IOException;
import java.io.IOException;
import java.lang.String;
import java.util.*;
import org.icefaces.ace.util.*;
import javax.faces.component.UIParameter;
import javax.faces.convert.ConverterException;
import org.icefaces.util.EnvUtils;
import org.icefaces.ace.renderkit.InputRenderer;
import javax.faces.model.SelectItem;
import javax.faces.convert.Converter;
import javax.el.ExpressionFactory;
import javax.el.ELException;
import java.lang.reflect.Array;
import javax.el.ValueExpression;
import javax.faces.FacesException;
import javax.faces.application.Application;
@MandatoryResourceComponent(tagName = "radioButtons", value = "org.icefaces.ace.component.radiobuttons.RadioButtons")
public class RadioButtonsRenderer extends InputRenderer {
private enum EventType {
HOVER, FOCUS
}
@Override
public void decode(FacesContext context, UIComponent component) {
// componentIsDisabledOrReadonly ?
RadioButtons radioButtons = (RadioButtons) component;
String clientId = radioButtons.getClientId(context);
Map requestParameterValues =
context.getExternalContext().getRequestParameterMap();
if (requestParameterValues.containsKey(clientId)) {
String newValue = requestParameterValues.get(clientId);
radioButtons.setSubmittedValue(newValue);
} else {
radioButtons.setSubmittedValue(null);
}
decodeBehaviors(context, radioButtons);
}
@Override
public void encodeBegin(FacesContext context, UIComponent component) throws IOException {
super.encodeBegin(context, component);
ResponseWriter writer = context.getResponseWriter();
RadioButtons radioButtons = (RadioButtons) component;
String style = (style = radioButtons.getStyle()) == null ? "" : style.trim();
String styleClass = (styleClass = radioButtons.getStyleClass()) == null ? "" : styleClass.trim();
styleClass += (styleClass.length() > 0 ? " " : "") + "ice-ace-radiobuttons ui-widget ui-widget-content ui-corner-all " +getStateStyleClasses(radioButtons);
writer.startElement("div", component);
writer.writeAttribute("id", component.getClientId(context), "id");
if (style.length() > 0) {
writer.writeAttribute("style", style, "style");
}
writer.writeAttribute("class", styleClass, "styleClass");
UIComponent headerFacet = component.getFacet("header");
String headerText = (headerText = radioButtons.getHeader()) == null ? "" : headerText.trim();
if (headerFacet != null || headerText.length() > 0) {
writer.startElement("div", null);
writer.writeAttribute("class", "ui-widget-header ui-corner-top", null);
if (headerFacet != null) {
renderChild(context, headerFacet);
} else if (headerText.length() > 0) {
writer.write(headerText);
}
writer.endElement("div");
}
boolean required = radioButtons.isRequired();
String indicatorPosition = radioButtons.getIndicatorPosition();
String indicator = required ? radioButtons.getRequiredIndicator() : radioButtons.getOptionalIndicator();
if ("left".equalsIgnoreCase(indicatorPosition)
|| "top".equalsIgnoreCase(indicatorPosition)) {
if (indicator != null) {
writer.startElement("span", null);
writer.writeAttribute("class", "ice-indicator", null);
writer.write(indicator);
writer.endElement("span");
}
}
if ("top".equalsIgnoreCase(indicatorPosition)) {
writer.startElement("br", null);
writer.endElement("br");
}
// render buttons
Object currentSelection = radioButtons.getValue();
Converter converter = radioButtons.getConverter();
SelectItemsIterator selectItemsIterator = new SelectItemsIterator(context, radioButtons);
int i = 0;
if (!radioButtons.isValid()) {
while (selectItemsIterator.hasNext()) {
encodeButton(context, radioButtons, i++, selectItemsIterator.next(), converter, radioButtons.getSubmittedValue());
}
} else {
while (selectItemsIterator.hasNext()) {
encodeButton(context, radioButtons, i++, selectItemsIterator.next(), converter, currentSelection);
}
}
if ("bottom".equalsIgnoreCase(indicatorPosition)) {
writer.startElement("br", null);
writer.endElement("br");
}
if ("right".equalsIgnoreCase(indicatorPosition)
|| "bottom".equalsIgnoreCase(indicatorPosition)) {
if (indicator != null) {
writer.startElement("span", null);
writer.writeAttribute("class", "ice-indicator", null);
writer.write(indicator);
writer.endElement("span");
}
}
writer.endElement("div");
}
private void encodeButton(FacesContext facesContext, RadioButtons radioButtons, int index, SelectItem item, Converter converter, Object currentSelection) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
String clientId = radioButtons.getClientId(facesContext) + ":" + index;
String labelPosition = radioButtons.getLabelPosition();
String label = item.getLabel();
Object value = getConvertedValueForClient(facesContext, radioButtons, item.getValue());
boolean selected = isSelected(item.getValue(), currentSelection);
String firstWrapperClass = "ice-ace-radiobutton-main";
boolean ariaEnabled = EnvUtils.isAriaEnabled(facesContext);
// Root Container
writer.startElement(HTML.DIV_ELEM, radioButtons);
writer.writeAttribute(HTML.ID_ATTR, clientId, null);
renderResetSettings(facesContext, clientId);
// ComponentUtils.enableOnElementUpdateNotify(writer, clientId);
writer.writeAttribute(HTML.CLASS_ATTR, "ice-ace-radiobutton", null);
encodeScript(facesContext, writer, radioButtons, clientId, EventType.HOVER, item.isDisabled());
if (label != null) {
if ("left".equalsIgnoreCase(labelPosition)
|| "top".equalsIgnoreCase(labelPosition)) {
writer.startElement("label", null);
writer.writeAttribute("id", "label_" + clientId, null);
writer.writeAttribute("for", clientId, null);
writer.write(label);
writer.endElement("label");
}
if ("top".equalsIgnoreCase(labelPosition)) {
writer.startElement("br", null);
writer.endElement("br");
}
}
// First Wrapper
writer.startElement(HTML.SPAN_ELEM, null);
writer.writeAttribute(HTML.CLASS_ATTR, firstWrapperClass, null);
// Second Wrapper
writer.startElement(HTML.SPAN_ELEM, null);
if (ariaEnabled) {
writer.writeAttribute(HTML.ROLE_ATTR, "radio", null);
writer.writeAttribute(HTML.ARIA_DISABLED_ATTR, item.isDisabled(), null);
}
// Button Element
writer.startElement(HTML.BUTTON_ELEM, null);
writer.writeAttribute(HTML.TYPE_ATTR, "button", null);
String buttonId = clientId + "_button";
writer.writeAttribute(HTML.ID_ATTR, buttonId, null);
writer.writeAttribute(HTML.NAME_ATTR, buttonId, null);
String selectedClass = "";
selectedClass = (selected ? "ice-ace-radiobutton-selected" : "");
writer.writeAttribute(HTML.CLASS_ATTR, "ui-corner-all " + selectedClass, null);
if (ariaEnabled) writer.writeAttribute(HTML.TABINDEX_ATTR, "0", null);
encodeButtonStyle(writer, item.isDisabled());
encodeScript(facesContext, writer, radioButtons, clientId, EventType.FOCUS, item.isDisabled());
if (label != null && "inField".equalsIgnoreCase(radioButtons.getLabelPosition())) {
writer.startElement(HTML.SPAN_ELEM, null);
writer.writeAttribute(HTML.CLASS_ATTR, "ui-label", null);
writer.write(label);
writer.endElement(HTML.SPAN_ELEM);
} else {
writer.startElement(HTML.SPAN_ELEM, null);
encodeIconStyle(writer, selected);
writer.endElement(HTML.SPAN_ELEM);
}
writer.endElement(HTML.BUTTON_ELEM);
writer.endElement(HTML.SPAN_ELEM);
writer.endElement(HTML.SPAN_ELEM);
if (label != null) {
if ("bottom".equalsIgnoreCase(labelPosition)) {
writer.startElement("br", null);
writer.endElement("br");
}
if ("right".equalsIgnoreCase(labelPosition)
|| "bottom".equalsIgnoreCase(labelPosition)
|| labelPosition == null || "".equals(labelPosition)) {
writer.startElement("label", null);
writer.writeAttribute("id", "label_" + clientId, null);
writer.writeAttribute("for", clientId, null);
writer.write(label);
writer.endElement("label");
}
}
writer.startElement("input", radioButtons);
writer.writeAttribute("type", "hidden", null);
writer.writeAttribute("autocomplete", "off", null);
if (selected) writer.writeAttribute("name", radioButtons.getClientId(facesContext), null);
writer.writeAttribute("value", value, null);
writer.writeAttribute("data-value", value, null);
writer.endElement("input");
// register radio button with group
writer.startElement("script", null);
writer.writeAttribute("type", "text/javascript", null);
writer.writeText("ice.ace.radiobutton.register('"+clientId+"','"+radioButtons.getClientId(facesContext)+"');", null);
writer.endElement("script");
writer.endElement(HTML.DIV_ELEM);
Utils.registerLazyComponent(facesContext, clientId, getScript(facesContext, writer, radioButtons, clientId, item.isDisabled()));
}
private void encodeScript(FacesContext facesContext, ResponseWriter writer,
RadioButtons radioButtons, String clientId, EventType type, boolean disabled) throws IOException {
String eventType = "";
if (EventType.HOVER.equals(type))
eventType = HTML.ONMOUSEOVER_ATTR;
else if (EventType.FOCUS.equals(type))
eventType = HTML.ONFOCUS_ATTR;
writer.writeAttribute(eventType, "if (!document.getElementById('" + clientId + "').widget) "+ getScript(facesContext, writer, radioButtons, clientId, disabled), null);
}
private String getScript(FacesContext facesContext, ResponseWriter writer,
RadioButtons radioButtons, String clientId, boolean disabled) throws IOException {
String groupId = radioButtons.getClientId(facesContext);
boolean ariaEnabled = EnvUtils.isAriaEnabled(facesContext);
JSONBuilder jb = JSONBuilder.create();
List uiParamChildren = Utils.captureParameters(radioButtons);
jb.beginFunction("ice.ace.lazy")
.item("radiobutton")
.beginArray()
.item(clientId)
.beginMap()
.entry("groupId", groupId)
.entry("ariaEnabled", ariaEnabled)
.entry("radioButtons", radioButtons.getClientId(facesContext));
if (disabled) jb.entry("disabled", true);
if (uiParamChildren != null) {
jb.beginMap("uiParams");
for (UIParameter p : uiParamChildren)
jb.entry(p.getName(), (String)p.getValue());
jb.endMap();
}
encodeClientBehaviors(facesContext, radioButtons, jb);
jb.endMap().endArray().endFunction();
return jb.toString();
}
private void encodeButtonStyle(ResponseWriter writer, boolean disabled) throws IOException {
String buttonClasses = "";
String disabledClass = "ui-state-disabled";
if (disabled) {
buttonClasses += disabledClass + " ";
}
if (!buttonClasses.equals("")) {
writer.writeAttribute(HTML.CLASS_ATTR, buttonClasses.trim(), null);
}
}
private void encodeIconStyle(ResponseWriter writer, boolean value) throws IOException {
String iconClass = "fa";
String selectedStyle = "fa-dot-circle-o";
String unselectedStyle = "fa-circle-o";
String largeStyle = "fa-lg";
if (value) {
iconClass += " " + selectedStyle + " " + largeStyle;
} else {
iconClass += " " + unselectedStyle + " " + largeStyle;
};
writer.writeAttribute(HTML.CLASS_ATTR, iconClass, null);
}
protected boolean isSelected(Object itemValue, Object currentSelection) {
if (currentSelection == null) return false;
if (itemValue == null) return false;
return currentSelection.equals(itemValue);
}
public String getConvertedValueForClient(FacesContext context, UIComponent component, Object value) throws ConverterException {
RadioButtons radioButtons = (RadioButtons) component;
Converter converter = radioButtons.getConverter();
if(converter != null) {
return converter.getAsString(context, radioButtons, value);
} else {
ValueExpression ve = radioButtons.getValueExpression("value");
if(ve != null) {
Class valueType = ve.getType(context.getELContext());
Converter converterForType = context.getApplication().createConverter(valueType);
if(converterForType != null) {
if (converterForType instanceof javax.faces.convert.EnumConverter && "".equals(value)) return converterForType.getAsString(context, radioButtons, null);
return converterForType.getAsString(context, radioButtons, value);
}
}
}
return (value != null ? value.toString() : "");
}
protected void renderResetSettings(FacesContext context, String clientId) throws IOException {
ResponseWriter writer = context.getResponseWriter();
JSONBuilder jb = JSONBuilder.create();
jb.beginArray();
jb.item("radiobutton");
jb.beginArray();
jb.item(clientId);
jb.item(EnvUtils.isAriaEnabled(context));
jb.item(true);
jb.endArray();
jb.endArray();
writer.writeAttribute("data-ice-reset", jb.toString(), null);
}
}
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