org.openlegacy.terminal.web.render.support.DefaultBidiElementsProvider.java Source code

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Here is the source code for org.openlegacy.terminal.web.render.support.DefaultBidiElementsProvider.java

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/*******************************************************************************
 * Copyright (c) 2014 OpenLegacy Inc.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     OpenLegacy Inc. - initial API and implementation
 *******************************************************************************/
package org.openlegacy.terminal.web.render.support;

import org.apache.commons.lang.StringUtils;
import org.openlegacy.terminal.Color;
import org.openlegacy.terminal.ScreenSize;
import org.openlegacy.terminal.TerminalField;
import org.openlegacy.terminal.TerminalFieldSplitter;
import org.openlegacy.terminal.support.BidiTerminalFieldSplitter;
import org.openlegacy.web.HtmlConstants;
import org.w3c.dom.Element;
import org.w3c.dom.Text;

import java.util.List;

public class DefaultBidiElementsProvider extends DefaultElementsProvider {

    @Override
    public Element createLabel(Element rootNode, TerminalField field, ScreenSize screenSize) {
        String visualValue = field.getValue();

        if (visualValue != null) {
            TerminalFieldSplitter splitter = new BidiTerminalFieldSplitter();
            List<TerminalField> fields = splitter.split(field, screenSize);
            if (fields == null) {
                return super.createLabel(rootNode, field, screenSize);
            } else {
                Element container = rootNode.getOwnerDocument().createElement("span");
                container.setAttribute("style", "position:relative");
                for (TerminalField splitField : fields) {
                    Element node = createLabelInner(rootNode, splitField, screenSize);
                    if (node != null) {
                        container.appendChild(node);

                    }
                }
                rootNode.appendChild(container);
                return container;
            }
        } else {
            return super.createLabel(rootNode, field, screenSize);
        }
    }

    private Element createLabelInner(Element rootNode, TerminalField field, ScreenSize screenSize) {
        String value = field.getVisualValue();
        if (value == null || value.trim().length() > 0) {
            value = field.getValue();
        }
        if (field.isHidden() || StringUtils.isWhitespace(value) && field.getBackColor() == Color.BLACK) {
            return null;
        }
        if (field.getBackColor() == Color.BLACK) {
            value = value.trim();
        }

        Element label = createTag(rootNode, HtmlConstants.SPAN);
        populateCommonAttributes(label, field);

        Text textNode = rootNode.getOwnerDocument().createTextNode(value);
        label.appendChild(textNode);

        rootNode.appendChild(label);
        return label;

    }
}