org.primefaces.extensions.component.qrcode.QRCodeRenderer Maven / Gradle / Ivy

/**
 * Copyright 2011-2018 PrimeFaces Extensions
 *
 * 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.extensions.component.qrcode;

import java.io.IOException;

import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;

import org.primefaces.renderkit.CoreRenderer;
import org.primefaces.util.WidgetBuilder;

/**
 * Renderer for the {@link QRCode} component.
 *
 * @author Mauricio Fenoglio / last modified by Melloware
 * @since 1.2.0
 */
public class QRCodeRenderer extends CoreRenderer {

    @Override
    public void encodeEnd(final FacesContext context, final UIComponent component) throws IOException {
        final QRCode qrCode = (QRCode) component;
        encodeMarkup(context, qrCode);
        encodeScript(context, qrCode);
    }

    protected void encodeScript(final FacesContext context, final QRCode qrCode) throws IOException {
        final WidgetBuilder wb = getWidgetBuilder(context);
        wb.initWithDomReady("ExtQRCode", qrCode.resolveWidgetVar(), qrCode.getClientId());
        wb.attr("render", qrCode.getRenderMethod())
                    .attr("mode", qrCode.getRenderMode())
                    .attr("minVersion", qrCode.getMinVersion())
                    .attr("maxVersion", qrCode.getMaxVersion())
                    .attr("left", qrCode.getLeftOffset())
                    .attr("top", qrCode.getTopOffset())
                    .attr("size", qrCode.getSize())
                    .attr("fill", qrCode.getFillColor())
                    .attr("ecLevel", qrCode.getEcLevel())
                    .attr("background", qrCode.getBackground())
                    .attr("text", qrCode.getText())
                    .attr("radius", qrCode.getRadius())
                    .attr("quiet", qrCode.getQuiet())
                    .attr("mSize", qrCode.getMSize())
                    .attr("mPosX", qrCode.getMPosX())
                    .attr("mPosY", qrCode.getMPosY())
                    .attr("label", qrCode.getLabel())
                    .attr("fontname", qrCode.getFontName())
                    .attr("fontcolor", qrCode.getFontColor());

        wb.finish();
    }

    private void encodeMarkup(final FacesContext context, final QRCode qrCode) throws IOException {
        final ResponseWriter writer = context.getResponseWriter();
        final String clientId = qrCode.getClientId(context);
        writer.startElement("span", null);
        writer.writeAttribute("id", clientId, null);
        writer.endElement("span");
    }

    @Override
    public void encodeChildren(final FacesContext context, final UIComponent component) throws IOException {
        // do nothing
    }

    @Override
    public boolean getRendersChildren() {
        return true;
    }
}