/*
* Copyright 2009-2014 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.selectmanycheckbox;
import java.io.IOException;
import java.util.List;
import javax.faces.FacesException;
import javax.faces.component.UIComponent;
import javax.faces.component.UIInput;
import javax.faces.component.UINamingContainer;
import javax.faces.component.UISelectMany;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.convert.Converter;
import javax.faces.convert.ConverterException;
import javax.faces.model.SelectItem;
import org.primefaces.context.RequestContext;
import org.primefaces.renderkit.SelectManyRenderer;
import org.primefaces.util.HTML;
import org.primefaces.util.WidgetBuilder;
public class SelectManyCheckboxRenderer extends SelectManyRenderer {
@Override
public Object getConvertedValue(FacesContext context, UIComponent component, Object submittedValue) throws ConverterException {
return context.getRenderKit().getRenderer("javax.faces.SelectMany", "javax.faces.Checkbox").getConvertedValue(context, component, submittedValue);
}
@Override
public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
SelectManyCheckbox checkbox = (SelectManyCheckbox) component;
encodeMarkup(context, checkbox);
encodeScript(context, checkbox);
}
protected void encodeMarkup(FacesContext context, SelectManyCheckbox checkbox) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String clientId = checkbox.getClientId(context);
String style = checkbox.getStyle();
String styleClass = checkbox.getStyleClass();
styleClass = styleClass == null ? SelectManyCheckbox.STYLE_CLASS : SelectManyCheckbox.STYLE_CLASS + " " + styleClass;
writer.startElement("table", checkbox);
writer.writeAttribute("id", clientId, "id");
writer.writeAttribute("class", styleClass, "styleClass");
if(style != null)
writer.writeAttribute("style", style, "style");
encodeSelectItems(context, checkbox);
writer.endElement("table");
}
protected void encodeScript(FacesContext context, SelectManyCheckbox checkbox) throws IOException {
String clientId = checkbox.getClientId(context);
WidgetBuilder wb = getWidgetBuilder(context);
wb.init("SelectManyCheckbox", checkbox.resolveWidgetVar(), clientId).finish();
}
protected void encodeOptionInput(FacesContext context, SelectManyCheckbox checkbox, String id, String name, boolean checked, boolean disabled, String value) throws IOException {
ResponseWriter writer = context.getResponseWriter();
writer.startElement("div", null);
writer.writeAttribute("class", "ui-helper-hidden-accessible", null);
writer.startElement("input", null);
writer.writeAttribute("id", id, null);
writer.writeAttribute("name", name, null);
writer.writeAttribute("type", "checkbox", null);
writer.writeAttribute("value", value, null);
renderOnchange(context, checkbox);
if(checked) writer.writeAttribute("checked", "checked", null);
if(disabled) writer.writeAttribute("disabled", "disabled", null);
if(RequestContext.getCurrentInstance().getApplicationContext().getConfig().isClientSideValidationEnabled()) {
renderValidationMetadata(context, checkbox);
}
writer.endElement("input");
writer.endElement("div");
}
protected void encodeOptionLabel(FacesContext context, SelectManyCheckbox checkbox, String containerClientId, SelectItem option, boolean disabled) throws IOException {
ResponseWriter writer = context.getResponseWriter();
writer.startElement("label", null);
writer.writeAttribute("for", containerClientId, null);
if(disabled)
writer.writeAttribute("class", "ui-state-disabled", null);
if(option.isEscape())
writer.writeText(option.getLabel(),null);
else
writer.write(option.getLabel());
writer.endElement("label");
}
protected void encodeOptionOutput(FacesContext context, SelectManyCheckbox checkbox, boolean checked, boolean disabled) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String boxClass = HTML.CHECKBOX_BOX_CLASS;
boxClass = checked ? boxClass + " ui-state-active" : boxClass;
boxClass = disabled ? boxClass + " ui-state-disabled" : boxClass;
boxClass = !checkbox.isValid() ? boxClass + " ui-state-error" : boxClass;
String iconClass = checked ? HTML.CHECKBOX_CHECKED_ICON_CLASS : HTML.CHECKBOX_UNCHECKED_ICON_CLASS;
writer.startElement("div", null);
writer.writeAttribute("class", boxClass, null);
writer.startElement("span", null);
writer.writeAttribute("class", iconClass, null);
writer.endElement("span");
writer.endElement("div");
}
protected void encodeSelectItems(FacesContext context, SelectManyCheckbox checkbox) throws IOException {
String layout = checkbox.getLayout();
if(layout == null) {
layout = "lineDirection";
}
if(layout.equals("lineDirection"))
encodeLineLayout(context, checkbox);
else if(layout.equals("pageDirection"))
encodePageLayout(context, checkbox);
else if(layout.equals("grid"))
encodeGridLayout(context, checkbox);
else
throw new FacesException("Invalid '" + layout + "' type for component '" + checkbox.getClientId(context) + "'.");
}
protected void encodeLineLayout(FacesContext context, SelectManyCheckbox checkbox) throws IOException{
ResponseWriter writer = context.getResponseWriter();
List<SelectItem> selectItems = getSelectItems(context, checkbox);
Converter converter = checkbox.getConverter();
Object values = getValues(checkbox);
Object submittedValues = getSubmittedValues(checkbox);
writer.startElement("tr", null);
int idx = 0;
for(SelectItem selectItem : selectItems) {
encodeOption(context, checkbox, values, submittedValues, converter, selectItem, idx);
idx++;
}
writer.endElement("tr");
}
protected void encodePageLayout(FacesContext context, SelectManyCheckbox checkbox) throws IOException{
ResponseWriter writer = context.getResponseWriter();
List<SelectItem> selectItems = getSelectItems(context, checkbox);
Converter converter = checkbox.getConverter();
Object values = getValues(checkbox);
Object submittedValues = getSubmittedValues(checkbox);
int idx = 0;
for(SelectItem selectItem : selectItems) {
writer.startElement("tr", null);
encodeOption(context, checkbox, values, submittedValues, converter, selectItem, idx);
writer.endElement("tr");
idx++;
}
}
protected void encodeGridLayout(FacesContext context, SelectManyCheckbox checkbox) throws IOException{
ResponseWriter writer = context.getResponseWriter();
List<SelectItem> selectItems = getSelectItems(context, checkbox);
Converter converter = checkbox.getConverter();
Object values = getValues(checkbox);
Object submittedValues = getSubmittedValues(checkbox);
int columns = checkbox.getColumns();
if(columns != 0){
int idx = 0, colMod;
for(SelectItem selectItem : selectItems) {
colMod = idx % columns;
if(colMod == 0)
writer.startElement("tr", null);
encodeOption(context, checkbox, values, submittedValues, converter, selectItem, idx);
idx++;
colMod = idx % columns;
if(colMod == 0)
writer.endElement("tr");
}
}
else {
throw new FacesException("The value of columns attribute must be greater than zero.");
}
}
protected void encodeOption(FacesContext context, UIInput component, Object values, Object submittedValues, Converter converter, SelectItem option, int idx) throws IOException {
ResponseWriter writer = context.getResponseWriter();
SelectManyCheckbox checkbox = (SelectManyCheckbox) component;
String itemValueAsString = getOptionAsString(context, component, converter, option.getValue());
String name = checkbox.getClientId(context);
String id = name + UINamingContainer.getSeparatorChar(context) + idx;
boolean disabled = option.isDisabled() || checkbox.isDisabled();
Object valuesArray;
Object itemValue;
if(submittedValues != null) {
valuesArray = submittedValues;
itemValue = itemValueAsString;
} else {
valuesArray = values;
itemValue = option.getValue();
}
boolean selected = isSelected(context, component, itemValue, valuesArray, converter);
if(option.isNoSelectionOption() && values != null && !selected) {
return;
}
writer.startElement("td", null);
writer.startElement("div", null);
writer.writeAttribute("class", HTML.CHECKBOX_CLASS, null);
encodeOptionInput(context, checkbox, id, name, selected, disabled, itemValueAsString);
encodeOptionOutput(context, checkbox, selected, disabled);
writer.endElement("div");
writer.endElement("td");
writer.startElement("td", null);
encodeOptionLabel(context, checkbox, id, option, disabled);
writer.endElement("td");
}
@Override
protected String getSubmitParam(FacesContext context, UISelectMany selectMany) {
return selectMany.getClientId(context);
}
@Override
public String getHighlighter() {
return "manychkbox";
}
@Override
protected boolean isGrouped() {
return true;
}
}