org.primefaces.component.selectmanybutton.SelectManyButtonRenderer Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of primefaces Show documentation
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.
There is a newer version: 14.0.0-RC3
Show newest version
/**
 * 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.selectmanybutton;

import java.io.IOException;
import java.util.List;

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 javax.faces.render.Renderer;

import org.primefaces.renderkit.SelectManyRenderer;
import org.primefaces.util.ComponentUtils;
import org.primefaces.util.HTML;
import org.primefaces.util.WidgetBuilder;

public class SelectManyButtonRenderer extends SelectManyRenderer {

    @Override
    public Object getConvertedValue(FacesContext context, UIComponent component, Object submittedValue) throws ConverterException {
        Renderer renderer = ComponentUtils.getUnwrappedRenderer(
                context,
                "javax.faces.SelectMany",
                "javax.faces.Checkbox",
                Renderer.class);
        return renderer.getConvertedValue(context, component, submittedValue);
    }

    @Override
    public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
        SelectManyButton button = (SelectManyButton) component;

        encodeMarkup(context, button);
        encodeScript(context, button);
    }

    protected void encodeMarkup(FacesContext context, SelectManyButton button) throws IOException {
        ResponseWriter writer = context.getResponseWriter();
        String clientId = button.getClientId(context);
        List selectItems = getSelectItems(context, button);
        int selectItemsSize = selectItems.size();
        String style = button.getStyle();
        String styleClass = button.getStyleClass();
        styleClass = styleClass == null ? SelectManyButton.STYLE_CLASS : SelectManyButton.STYLE_CLASS + " " + styleClass;
        styleClass = styleClass + " ui-buttonset-" + selectItemsSize;
        styleClass = !button.isValid() ? styleClass + " ui-state-error" : styleClass;

        writer.startElement("div", button);
        writer.writeAttribute("id", clientId, "id");
        writer.writeAttribute("class", styleClass, "styleClass");
        if (style != null) {
            writer.writeAttribute("style", style, "style");
        }

        encodeSelectItems(context, button, selectItems);

        writer.endElement("div");
    }

    protected void encodeSelectItems(FacesContext context, SelectManyButton button, List selectItems) throws IOException {
        Converter converter = button.getConverter();
        Object values = getValues(button);
        Object submittedValues = getSubmittedValues(button);

        for (int i = 0; i < selectItems.size(); i++) {
            SelectItem selectItem = selectItems.get(i);
            encodeOption(context, button, values, submittedValues, converter, selectItem, i, selectItems.size());
        }
    }

    protected void encodeOption(FacesContext context, UIInput component, Object values, Object submittedValues, Converter converter,
                                SelectItem option, int idx, int size) throws IOException {

        ResponseWriter writer = context.getResponseWriter();
        SelectManyButton button = (SelectManyButton) component;
        String itemValueAsString = getOptionAsString(context, component, converter, option.getValue());
        String name = button.getClientId(context);
        String id = name + UINamingContainer.getSeparatorChar(context) + idx;
        boolean disabled = option.isDisabled() || button.isDisabled();
        String tabindex = button.getTabindex();

        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;
        }

        String buttonStyle = HTML.BUTTON_TEXT_ONLY_BUTTON_FLAT_CLASS;
        if (size == 0) {
            buttonStyle = buttonStyle + " ui-corner-all";
        }
        else if (idx == 0) {
            buttonStyle = buttonStyle + " ui-corner-left";
        }
        else if (idx == (size - 1)) {
            buttonStyle = buttonStyle + " ui-corner-right";
        }

        buttonStyle = selected ? buttonStyle + " ui-state-active" : buttonStyle;
        buttonStyle = disabled ? buttonStyle + " ui-state-disabled" : buttonStyle;

        //button
        writer.startElement("div", null);
        writer.writeAttribute("class", buttonStyle, null);
        if (option.getDescription() != null) {
            writer.writeAttribute("title", option.getDescription(), null);
        }

        //input
        writer.startElement("input", null);
        writer.writeAttribute("id", id, null);
        writer.writeAttribute("name", name, null);
        writer.writeAttribute("type", "checkbox", null);
        writer.writeAttribute("value", itemValueAsString, null);
        writer.writeAttribute("class", "ui-helper-hidden-accessible", null);

        renderOnchange(context, button);

        if (selected) {
            writer.writeAttribute("checked", "checked", null);
        }
        if (tabindex != null) {
            writer.writeAttribute("tabindex", tabindex, null);
        }

        renderAccessibilityAttributes(context, button);
        writer.endElement("input");

        //item label
        writer.startElement("span", null);
        writer.writeAttribute("class", HTML.BUTTON_TEXT_CLASS, null);

        if (option.isEscape()) {
            writer.writeText(option.getLabel(), "itemLabel");
        }
        else {
            writer.write(option.getLabel());
        }

        writer.endElement("span");

        writer.endElement("div");
    }

    protected void encodeScript(FacesContext context, SelectManyButton button) throws IOException {
        String clientId = button.getClientId(context);
        WidgetBuilder wb = getWidgetBuilder(context);
        wb.init("SelectManyButton", button.resolveWidgetVar(), clientId).finish();
    }

    @Override
    protected String getSubmitParam(FacesContext context, UISelectMany selectMany) {
        return selectMany.getClientId(context);
    }

}