org.obiba.opal.web.gwt.app.client.ui.celltable.LabelValueColumn.java Source code

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Here is the source code for org.obiba.opal.web.gwt.app.client.ui.celltable.LabelValueColumn.java

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/*******************************************************************************
 * Copyright (c) 2011 OBiBa. All rights reserved.
 *
 * This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0.
 *
 * 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.obiba.opal.web.gwt.app.client.ui.celltable;

import com.google.common.base.Strings;
import com.google.gwt.cell.client.TextCell;
import com.google.gwt.safehtml.shared.SafeHtml;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.google.gwt.safehtml.shared.SafeHtmlUtils;
import com.google.gwt.text.shared.SafeHtmlRenderer;
import com.google.gwt.user.cellview.client.Column;

/**
 *
 */
public abstract class LabelValueColumn<T> extends Column<T, String> {

    private String css;

    public LabelValueColumn() {
        super(new TextCell(new SafeHtmlRenderer<String>() {

            @Override
            public SafeHtml render(String object) {
                return object == null ? SafeHtmlUtils.EMPTY_SAFE_HTML : SafeHtmlUtils.fromTrustedString(object);
            }

            @Override
            public void render(String object, SafeHtmlBuilder appendable) {
                appendable.append(SafeHtmlUtils.fromTrustedString(object));
            }
        }));
    }

    @Override
    public String getValue(T t) {
        StringBuilder label = new StringBuilder(getCss() == null ? "<div>" : "<div class=\"" + getCss() + "\">");
        if (!Strings.isNullOrEmpty(getLabel(t))) {
            label.append("<span class=\"label\">").append(getLabel(t)).append("</span> ");
        }
        label.append(getContent(t));
        label.append("</div>");
        return label.toString();
    }

    public abstract String getLabel(T t);

    public abstract String getContent(T t);

    public String getCss() {
        return css;
    }

    public void setCss(String css) {
        this.css = css;
    }
}