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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.checkboxbuttons;
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.component.UISelectMany;
import javax.faces.FacesException;
import javax.faces.application.Application;
@MandatoryResourceComponent(tagName = "checkboxButtons", value = "org.icefaces.ace.component.checkboxbuttons.CheckboxButtons")
public class CheckboxButtonsRenderer extends InputRenderer {
private enum EventType {
HOVER, FOCUS
}
@Override
public void decode(FacesContext context, UIComponent component) {
// componentIsDisabledOrReadonly ?
// String clientId = decodeBehaviors(context, component);
CheckboxButtons checkboxButtons = (CheckboxButtons) component;
String clientId = checkboxButtons.getClientId(context);
Map requestParameterValuesMap =
context.getExternalContext().getRequestParameterValuesMap();
if (requestParameterValuesMap.containsKey(clientId)) {
String newValues[] = requestParameterValuesMap.get(clientId);
checkboxButtons.setSubmittedValue(newValues);
} else {
// Use the empty array, not null, to distinguish
// between a deselected UISelectMany and a disabled one
checkboxButtons.setSubmittedValue(new String[0]);
}
decodeBehaviors(context, checkboxButtons);
}
@Override
public void encodeBegin(FacesContext context, UIComponent component) throws IOException {
super.encodeBegin(context, component);
ResponseWriter writer = context.getResponseWriter();
CheckboxButtons checkboxButtons = (CheckboxButtons) component;
String style = (style = checkboxButtons.getStyle()) == null ? "" : style.trim();
String styleClass = (styleClass = checkboxButtons.getStyleClass()) == null ? "" : styleClass.trim();
styleClass += (styleClass.length() > 0 ? " " : "") + "ice-ace-checkboxbuttons ui-widget ui-widget-content ui-corner-all " +getStateStyleClasses(checkboxButtons);
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 = checkboxButtons.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 = checkboxButtons.isRequired();
String indicatorPosition = checkboxButtons.getIndicatorPosition();
String indicator = required ? checkboxButtons.getRequiredIndicator() : checkboxButtons.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 currentSelections = getCurrentSelectedValues(checkboxButtons);
Converter converter = checkboxButtons.getConverter();
SelectItemsIterator selectItemsIterator = new SelectItemsIterator(context, checkboxButtons);
int i = 0;
if (!checkboxButtons.isValid()) {
while (selectItemsIterator.hasNext()) {
encodeButton(context, checkboxButtons, i++, selectItemsIterator.next(), converter, checkboxButtons.getSubmittedValue());
}
encodeSelect(context, checkboxButtons, new SelectItemsIterator(context, checkboxButtons), converter, checkboxButtons.getSubmittedValue());
} else {
while (selectItemsIterator.hasNext()) {
encodeButton(context, checkboxButtons, i++, selectItemsIterator.next(), converter, currentSelections);
}
encodeSelect(context, checkboxButtons, new SelectItemsIterator(context, checkboxButtons), converter, currentSelections);
}
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 encodeSelect(FacesContext facesContext, CheckboxButtons checkboxButtons, SelectItemsIterator selectItemsIterator, Converter converter, Object currentSelections) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
String id = checkboxButtons.getClientId(facesContext);
writer.startElement("select", checkboxButtons);
writer.writeAttribute("id", id + "_options", null);
writer.writeAttribute("name", id, null);
writer.writeAttribute("multiple", "multiple", null);
writer.writeAttribute("style", "visibility: hidden; width: 1px; height: 1px; padding: 0; margin 0; border: none;", null);
int i = 0;
while (selectItemsIterator.hasNext()) {
SelectItem item = selectItemsIterator.next();
Object value = getConvertedValueForClient(facesContext, checkboxButtons, item.getValue());
boolean selected = isSelected(facesContext, checkboxButtons, value, currentSelections, converter);
String clientId = checkboxButtons.getClientId(facesContext) + ":" + i;
writer.startElement("option", checkboxButtons);
if (selected) writer.writeAttribute("selected", "selected", null);
writer.writeAttribute("title", clientId, null);
writer.writeAttribute("value", value, null);
writer.writeText(value, null);
writer.endElement("option");
i++;
}
writer.endElement("option");
}
private void encodeButton(FacesContext facesContext, CheckboxButtons checkboxButtons, int index, SelectItem item, Converter converter, Object currentSelections) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
String clientId = checkboxButtons.getClientId(facesContext) + ":" + index;
String labelPosition = checkboxButtons.getLabelPosition();
String label = item.getLabel();
Object value = getConvertedValueForClient(facesContext, checkboxButtons, item.getValue());
boolean selected = isSelected(facesContext, checkboxButtons, value, currentSelections, converter);
String firstWrapperClass = "yui-button yui-checkboxbutton-button ui-button ui-widget";
String secondWrapperClass = "first-child";
boolean ariaEnabled = EnvUtils.isAriaEnabled(facesContext);
// Root Container
writer.startElement(HTML.DIV_ELEM, checkboxButtons);
writer.writeAttribute(HTML.ID_ATTR, clientId, null);
renderResetSettings(facesContext, clientId);
// ComponentUtils.enableOnElementUpdateNotify(writer, clientId);
writer.writeAttribute(HTML.CLASS_ATTR, "ice-checkboxbutton", null);
encodeScript(facesContext, writer, checkboxButtons, 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);
writer.writeAttribute(HTML.CLASS_ATTR, secondWrapperClass, null);
if (ariaEnabled) {
writer.writeAttribute(HTML.ROLE_ATTR, "checkbox", 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-checkboxbutton-checked" : "ice-checkboxbutton-unchecked");
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, checkboxButtons, clientId, EventType.FOCUS, item.isDisabled());
if (label != null && "inField".equalsIgnoreCase(checkboxButtons.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)) {
writer.startElement("label", null);
writer.writeAttribute("id", "label_" + clientId, null);
writer.writeAttribute("for", clientId, null);
writer.write(label);
writer.endElement("label");
}
}
// register checkbox with group
writer.startElement("script", null);
writer.writeAttribute("type", "text/javascript", null);
writer.writeText("ice.ace.checkboxbutton.register('"+clientId+"','"+checkboxButtons.getClientId(facesContext)+"');", null);
writer.endElement("script");
writer.endElement(HTML.DIV_ELEM);
Utils.registerLazyComponent(facesContext, clientId, getScript(facesContext, writer, checkboxButtons, clientId, item.isDisabled()));
}
private void encodeScript(FacesContext facesContext, ResponseWriter writer,
CheckboxButtons checkboxButtons, 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, checkboxButtons, clientId, disabled), null);
}
private String getScript(FacesContext facesContext, ResponseWriter writer,
CheckboxButtons checkboxButtons, String clientId, boolean disabled) throws IOException {
String groupId = checkboxButtons.getClientId(facesContext);
boolean ariaEnabled = EnvUtils.isAriaEnabled(facesContext);
JSONBuilder jb = JSONBuilder.create();
List uiParamChildren = Utils.captureParameters(checkboxButtons);
jb.beginFunction("ice.ace.lazy")
.item("checkboxbutton")
.beginArray()
.item(clientId)
.beginMap()
.entry("groupId", groupId)
.entry("ariaEnabled", ariaEnabled)
.entry("checkboxButtons", checkboxButtons.getClientId(facesContext))
.entry("mutuallyExclusive", checkboxButtons.isMutuallyExclusive());
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, checkboxButtons, 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-check-square-o";
String unselectedStyle = "fa-square-o";
String largeStyle = "fa-lg";
if (value) {
iconClass += " " + selectedStyle + " " + largeStyle;
} else {
iconClass += " " + unselectedStyle + " " + largeStyle;
};
writer.writeAttribute(HTML.CLASS_ATTR, iconClass, null);
}
protected boolean isSelected(FacesContext context,
UIComponent component,
Object itemValue,
Object valueArray,
Converter converter) {
if (itemValue == null && valueArray == null) {
return true;
}
if (null != valueArray) {
if (!valueArray.getClass().isArray()) {
return valueArray.equals(itemValue);
}
int len = Array.getLength(valueArray);
for (int i = 0; i < len; i++) {
Object value = Array.get(valueArray, i);
if (value == null && itemValue == null) {
return true;
} else {
if ((value == null) ^ (itemValue == null)) {
continue;
}
Object compareValue;
if (converter == null) {
compareValue = coerceToModelType(context,
itemValue,
value.getClass());
} else {
compareValue = itemValue;
if (compareValue instanceof String && !(value instanceof String)) {
// type mismatch between the time and the value we're
// comparing. Invoke the Converter.
compareValue = converter.getAsObject(context,
component,
(String) compareValue);
}
}
if (value.equals(compareValue)) {
return (true);
}
}
}
}
return false;
}
protected Object coerceToModelType(FacesContext ctx,
Object value,
Class itemValueType) {
Object newValue;
try {
ExpressionFactory ef = ctx.getApplication().getExpressionFactory();
newValue = ef.coerceToType(value, itemValueType);
} catch (ELException ele) {
newValue = value;
} catch (IllegalArgumentException iae) {
// If coerceToType fails, per the docs it should throw
// an ELException, however, GF 9.0 and 9.0u1 will throw
// an IllegalArgumentException instead (see GF issue 1527).
newValue = value;
}
return newValue;
}
protected Object getCurrentSelectedValues(CheckboxButtons checkboxButtons) {
Object value = checkboxButtons.getValue();
if (value == null) {
return null;
} else if (value instanceof Collection) {
return ((Collection) value).toArray();
} else if (value.getClass().isArray()) {
if (Array.getLength(value) == 0) {
return null;
}
} else if (!value.getClass().isArray()) {
/* logger.warning(
"The UISelectMany value should be an array or a collection type, the actual type is " +
value.getClass().getName());*/
}
return value;
}
@Override
public Object getConvertedValue(FacesContext context, UIComponent component, Object submittedValue) throws ConverterException {
UISelectMany uiSelectMany = (UISelectMany) component;
String[] newValues = (String[]) submittedValue;
// if we have no local value, try to get the valueExpression.
ValueExpression valueExpression =
uiSelectMany.getValueExpression("value");
Object result = newValues; // default case, set local value
boolean throwException = false;
// If we have a ValueExpression
if (null != valueExpression) {
Class modelType = valueExpression.getType(context.getELContext());
// Does the valueExpression resolve properly to something with
// a type?
if (modelType != null) {
result = convertSelectManyValuesForModel(context,
uiSelectMany,
modelType,
newValues);
}
// If it could not be converted, as a fall back try the type of
// the valueExpression's current value covering some edge cases such
// as where the current value came from a Map.
if(result == null) {
Object value = valueExpression.getValue(context.getELContext());
if(value != null) {
result = convertSelectManyValuesForModel(context,
uiSelectMany,
value.getClass(),
newValues);
}
}
if(result == null) {
throwException = true;
}
} else {
// No ValueExpression, just use Object array.
result = convertSelectManyValues(context, uiSelectMany,
Object[].class,
newValues);
}
if (throwException) {
StringBuffer values = new StringBuffer();
if (null != newValues) {
for (int i = 0; i < newValues.length; i++) {
if (i == 0) {
values.append(newValues[i]);
} else {
values.append(' ').append(newValues[i]);
}
}
}
Object[] params = {
values.toString(),
valueExpression.getExpressionString()
};
throw new ConverterException("Couldn't convert " + values.toString()
+ " (" + valueExpression.getExpressionString() + ")");
}
return result;
}
protected Object convertSelectManyValuesForModel(FacesContext context,
UISelectMany uiSelectMany,
Class modelType,
String[] newValues) {
if (modelType.isArray()) {
return convertSelectManyValues(context,
uiSelectMany,
modelType,
newValues);
} else if (Collection.class.isAssignableFrom(modelType)) {
Object[] values = (Object[]) convertSelectManyValues(context,
uiSelectMany,
Object[].class,
newValues);
Collection targetCollection = bestGuess(modelType, values.length);
//noinspection ManualArrayToCollectionCopy
for (Object v : values) {
//noinspection unchecked
targetCollection.add(v);
}
return targetCollection;
} else if (Object.class.equals(modelType)) {
return convertSelectManyValues(context,
uiSelectMany,
Object[].class,
newValues);
} else {
throw new FacesException("Target model Type is not a Collection or Array");
}
}
protected Object convertSelectManyValues(FacesContext context,
UISelectMany uiSelectMany,
Class arrayClass,
String[] newValues)
throws ConverterException {
Object result;
Converter converter;
int len = (null != newValues ? newValues.length : 0);
Class elementType = arrayClass.getComponentType();
// Optimization: If the elementType is String, we don't need
// conversion. Just return newValues.
if (elementType.equals(String.class)) {
return newValues;
}
try {
result = Array.newInstance(elementType, len);
} catch (Exception e) {
throw new ConverterException(e);
}
// bail out now if we have no new values, returning our
// oh-so-useful zero-length array.
if (null == newValues) {
return result;
}
// obtain a converter.
// attached converter takes priority
if (null == (converter = uiSelectMany.getConverter())) {
// Otherwise, look for a by-type converter
if (null == (converter = getConverterForClass(elementType,
context))) {
// if that fails, and the attached values are of Object type,
// we don't need conversion.
if (elementType.equals(Object.class)) {
return newValues;
}
StringBuffer valueStr = new StringBuffer();
for (int i = 0; i < len; i++) {
if (i == 0) {
valueStr.append(newValues[i]);
} else {
valueStr.append(' ').append(newValues[i]);
}
}
Object[] params = {
valueStr.toString(),
"null Converter"
};
throw new ConverterException("Couldn't convert " + valueStr.toString()
+ " (null Converter)");
}
}
assert(null != result);
if (elementType.isPrimitive()) {
for (int i = 0; i < len; i++) {
if (elementType.equals(Boolean.TYPE)) {
Array.setBoolean(result, i,
((Boolean) converter.getAsObject(context,
uiSelectMany,
newValues[i])));
} else if (elementType.equals(Byte.TYPE)) {
Array.setByte(result, i,
((Byte) converter.getAsObject(context,
uiSelectMany,
newValues[i])));
} else if (elementType.equals(Double.TYPE)) {
Array.setDouble(result, i,
((Double) converter.getAsObject(context,
uiSelectMany,
newValues[i])));
} else if (elementType.equals(Float.TYPE)) {
Array.setFloat(result, i,
((Float) converter.getAsObject(context,
uiSelectMany,
newValues[i])));
} else if (elementType.equals(Integer.TYPE)) {
Array.setInt(result, i,
((Integer) converter.getAsObject(context,
uiSelectMany,
newValues[i])));
} else if (elementType.equals(Character.TYPE)) {
Array.setChar(result, i,
((Character) converter.getAsObject(context,
uiSelectMany,
newValues[i])));
} else if (elementType.equals(Short.TYPE)) {
Array.setShort(result, i,
((Short) converter.getAsObject(context,
uiSelectMany,
newValues[i])));
} else if (elementType.equals(Long.TYPE)) {
Array.setLong(result, i,
((Long) converter.getAsObject(context,
uiSelectMany,
newValues[i])));
}
}
} else {
for (int i = 0; i < len; i++) {
Array.set(result, i, converter.getAsObject(context,
uiSelectMany,
newValues[i]));
}
}
return result;
}
protected Converter getConverterForClass(Class converterClass, FacesContext context) {
if (converterClass == null) {
return null;
}
try {
Application application = context.getApplication();
return (application.createConverter(converterClass));
} catch (Exception e) {
return (null);
}
}
protected Collection bestGuess(Class type, int initialSize) {
if (SortedSet.class.isAssignableFrom(type)) {
return new TreeSet();
} else if (Queue.class.isAssignableFrom(type)) {
return new LinkedList();
} else if (Set.class.isAssignableFrom(type)) {
return new HashSet(initialSize);
} else {
// this covers the where type is List or Collection
return new ArrayList(initialSize);
}
}
public String getConvertedValueForClient(FacesContext context, UIComponent component, Object value) throws ConverterException {
CheckboxButtons checkboxButtons = (CheckboxButtons) component;
Converter converter = checkboxButtons.getConverter();
if(converter != null) {
return converter.getAsString(context, checkboxButtons, value);
} else {
ValueExpression ve = checkboxButtons.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, checkboxButtons, null);
return converterForType.getAsString(context, checkboxButtons, 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("checkboxbutton");
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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