org.pepstock.jem.gwt.client.panels.gfs.commons.FolderLinkTextColumn.java Source code

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Here is the source code for org.pepstock.jem.gwt.client.panels.gfs.commons.FolderLinkTextColumn.java

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/**
JEM, the BEE - Job Entry Manager, the Batch Execution Environment
Copyright (C) 2012-2015   Marco "Fuzzo" Cuccato
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
any later version.
    
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package org.pepstock.jem.gwt.client.panels.gfs.commons;

import org.pepstock.jem.gfs.GfsFile;
import org.pepstock.jem.gwt.client.commons.Images;

import com.google.gwt.cell.client.FieldUpdater;
import com.google.gwt.safehtml.shared.SafeHtml;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.google.gwt.text.shared.AbstractSafeHtmlRenderer;
import com.google.gwt.user.cellview.client.Column;

/**
 * 
 * @author Marco "Fuzzo" Cuccato
 *
 * @param <T> Type of rendered object
 */
public abstract class FolderLinkTextColumn extends Column<GfsFile, GfsFile> {

    private static SafeHtmlRenderer anchorRenderer = new SafeHtmlRenderer();

    private static class SafeHtmlRenderer extends AbstractSafeHtmlRenderer<GfsFile> {
        @Override
        public SafeHtml render(GfsFile object) {
            SafeHtmlBuilder sb = new SafeHtmlBuilder();
            sb.appendHtmlConstant("<table>");
            // Add the contact image.
            sb.appendHtmlConstant("<tr><td align='left' valign='middle'>");
            String imageUrl;
            if (object.isDirectory()) {
                imageUrl = "<img src=\"" + Images.INSTANCE.folder().getSafeUri().asString()
                        + "\" style=\"border-style: none\" />";
            } else {
                imageUrl = "<img src=\"" + Images.INSTANCE.file().getSafeUri().asString()
                        + "\" style=\"border-style: none\" />";
            }
            sb.appendHtmlConstant("<a href=\"javascript:;\">").appendHtmlConstant(imageUrl)
                    .appendHtmlConstant("</a>");
            sb.appendHtmlConstant("</td>");
            // Add the name and address.
            sb.appendHtmlConstant("<td align='left' valign='middle'>");
            if (object.isDirectory()) {
                sb.appendHtmlConstant("<a href=\"javascript:;\">").appendEscaped(object.getName())
                        .appendHtmlConstant("</a>");
            } else {
                sb.appendEscaped(object.getName());
            }
            sb.appendHtmlConstant("</td></tr></table>");
            return sb.toSafeHtml();
        }
    }

    /**
     * Contructor that adds an AnchorRenderer to a ClickableTextCell
     */
    public FolderLinkTextColumn() {
        super(new ItemNameCell(anchorRenderer));

        setFieldUpdater(new FieldUpdater<GfsFile, GfsFile>() {
            @Override
            public void update(int index, GfsFile object, GfsFile value) {
                // fire inspect event
                onClick(index, object);
            }
        });
    }

    /**
     * Executed when a click event is fired on the anchor
     * @param index
     * @param object
     * @param value
     */
    public abstract void onClick(int index, GfsFile object);

    /**
     * Return the anchor's text
     * @param object The rendered object
     */
    @Override
    public final GfsFile getValue(GfsFile object) {
        return object;
    }

}