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PrimeFaces is one of the most popular UI libraries in Java EE Ecosystem and widely used by software companies, world renowned brands, banks, financial institutions, insurance companies, universities and more.
/**
* The MIT License
*
* Copyright (c) 2009-2019 PrimeTek
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.primefaces.component.tristatecheckbox;
import java.io.IOException;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.primefaces.renderkit.InputRenderer;
import org.primefaces.util.ComponentUtils;
import org.primefaces.util.EscapeUtils;
import org.primefaces.util.HTML;
import org.primefaces.util.LangUtils;
import org.primefaces.util.WidgetBuilder;
public class TriStateCheckboxRenderer extends InputRenderer {
@Override
public void decode(final FacesContext context, final UIComponent component) {
TriStateCheckbox checkbox = (TriStateCheckbox) component;
if (!shouldDecode(checkbox)) {
return;
}
decodeBehaviors(context, checkbox);
String clientId = checkbox.getClientId(context);
String submittedValue = context.getExternalContext().getRequestParameterMap().get(clientId + "_input");
if (submittedValue != null) {
checkbox.setSubmittedValue(submittedValue);
}
}
@Override
public void encodeEnd(final FacesContext context, final UIComponent component) throws IOException {
TriStateCheckbox checkbox = (TriStateCheckbox) component;
encodeMarkup(context, checkbox);
encodeScript(context, checkbox);
}
protected void encodeMarkup(final FacesContext context, final TriStateCheckbox checkbox) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String clientId = checkbox.getClientId(context);
String valueToRenderer = ComponentUtils.getValueToRender(context, checkbox);
int valCheck = LangUtils.isValueBlank(valueToRenderer) ? 0 : Integer.parseInt(valueToRenderer);
if (valCheck > 2 || valCheck < 0) {
valCheck = 0;
}
boolean disabled = checkbox.isDisabled();
String style = checkbox.getStyle();
String styleClass = checkbox.getStyleClass();
styleClass = styleClass == null ? HTML.CHECKBOX_CLASS : HTML.CHECKBOX_CLASS + " " + styleClass;
writer.startElement("div", checkbox);
writer.writeAttribute("id", clientId, "id");
writer.writeAttribute("class", styleClass, "styleClass");
if (style != null) {
writer.writeAttribute("style", style, "style");
}
encodeInput(context, checkbox, clientId, valCheck);
encodeOutput(context, checkbox, valCheck, disabled);
encodeItemLabel(context, checkbox);
writer.endElement("div");
}
protected void encodeInput(final FacesContext context, final TriStateCheckbox checkbox, final String clientId,
final int valCheck) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String inputId = clientId + "_input";
writer.startElement("div", checkbox);
writer.writeAttribute("class", HTML.CHECKBOX_INPUT_WRAPPER_CLASS, null);
writer.startElement("input", null);
writer.writeAttribute("id", inputId, "id");
writer.writeAttribute("name", inputId, null);
writer.writeAttribute("value", valCheck, null);
writer.writeAttribute("autocomplete", "off", null);
writer.writeAttribute("readonly", "readonly", null);
renderAccessibilityAttributes(context, checkbox);
renderPassThruAttributes(context, checkbox, HTML.TAB_INDEX);
if (checkbox.getOnchange() != null) {
writer.writeAttribute("onchange", checkbox.getOnchange(), null);
}
writer.endElement("input");
writer.endElement("div");
}
protected void encodeOutput(final FacesContext context, final TriStateCheckbox checkbox, final int valCheck,
final boolean disabled) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String styleClass = HTML.CHECKBOX_BOX_CLASS;
styleClass = (valCheck == 1 || valCheck == 2) ? styleClass + " ui-state-active" : styleClass;
styleClass = !checkbox.isValid() ? styleClass + " ui-state-error" : styleClass;
styleClass = disabled ? styleClass + " ui-state-disabled" : styleClass;
//if stateIcon is defined use it insted of default icons.
String stateOneIconClass
= checkbox.getStateOneIcon() != null ? TriStateCheckbox.UI_ICON + checkbox.getStateOneIcon() : "";
String stateTwoIconClass
= checkbox.getStateTwoIcon() != null ? TriStateCheckbox.UI_ICON + checkbox.getStateTwoIcon()
: TriStateCheckbox.UI_ICON + "ui-icon-check";
String stateThreeIconClass
= checkbox.getStateThreeIcon() != null ? TriStateCheckbox.UI_ICON + checkbox.getStateThreeIcon()
: TriStateCheckbox.UI_ICON + "ui-icon-closethick";
String statesIconsClasses = "[\"" + stateOneIconClass + "\",\"" + stateTwoIconClass + "\",\"" + stateThreeIconClass + "\"]";
String stateOneTitle = checkbox.getStateOneTitle() == null ? "" : checkbox.getStateOneTitle();
String stateTwoTitle = checkbox.getStateTwoTitle() == null ? "" : checkbox.getStateTwoTitle();
String stateThreeTitle = checkbox.getStateThreeTitle() == null ? "" : checkbox.getStateThreeTitle();
String statesTitles = "{\"titles\": [\""
+ EscapeUtils.forJavaScript(stateOneTitle)
+ "\",\""
+ EscapeUtils.forJavaScript(stateTwoTitle)
+ "\",\""
+ EscapeUtils.forJavaScript(stateThreeTitle)
+ "\"]}";
String iconClass = "ui-chkbox-icon ui-c"; //HTML.CHECKBOX_ICON_CLASS;
String activeTitle = "";
if (valCheck == 0) {
iconClass = iconClass + " " + stateOneIconClass;
activeTitle = stateOneTitle;
}
else if (valCheck == 1) {
iconClass = iconClass + " " + stateTwoIconClass;
activeTitle = stateTwoTitle;
}
else if (valCheck == 2) {
iconClass = iconClass + " " + stateThreeIconClass;
activeTitle = stateThreeTitle;
}
writer.startElement("div", null);
writer.writeAttribute("class", styleClass, null);
writer.writeAttribute("data-iconstates", statesIconsClasses, null);
if (!LangUtils.isValueBlank(stateOneTitle) || !LangUtils.isValueBlank(stateTwoTitle) || !LangUtils.isValueBlank(stateThreeTitle)) {
writer.writeAttribute("title", activeTitle, null);
writer.writeAttribute("data-titlestates", statesTitles, null);
}
writer.startElement("span", null);
writer.writeAttribute("class", iconClass, null);
writer.endElement("span");
writer.endElement("div");
}
protected void encodeItemLabel(final FacesContext context, final TriStateCheckbox checkbox) throws IOException {
String label = checkbox.getItemLabel();
if (label != null) {
ResponseWriter writer = context.getResponseWriter();
writer.startElement("span", null);
writer.writeAttribute("class", HTML.CHECKBOX_LABEL_CLASS, null);
writer.writeText(label, "itemLabel");
writer.endElement("span");
}
}
protected void encodeScript(final FacesContext context, final TriStateCheckbox checkbox) throws IOException {
WidgetBuilder wb = getWidgetBuilder(context);
wb.init("TriStateCheckbox", checkbox.resolveWidgetVar(), checkbox.getClientId());
encodeClientBehaviors(context, checkbox);
wb.finish();
}
}