de.uni_tuebingen.qbic.qbicmainportlet.ButtonLink.java Source code

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Here is the source code for de.uni_tuebingen.qbic.qbicmainportlet.ButtonLink.java

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/*******************************************************************************
 * QBiC Project qNavigator enables users to manage their projects.
 * Copyright (C) "2016?  Christopher Mohr, David Wojnar, Andreas Friedrich
 *
 * 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
 * (at your option) 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 de.uni_tuebingen.qbic.qbicmainportlet;

import com.vaadin.server.ExternalResource;
import com.vaadin.server.Page;
import com.vaadin.shared.Position;
import com.vaadin.shared.ui.label.ContentMode;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;
import com.vaadin.ui.Label;
import com.vaadin.ui.Notification;

/*
 * Link that looks like a Button, that is actually a Label Based on
 * https://vaadin.com/forum/#!/thread/69989
 */
public class ButtonLink extends Label {
    /**
     * 
     */
    private static final long serialVersionUID = 4654807493467264366L;
    String caption;

    /**
     * Link that looks like a Button, that is actually a Label. Set the caption of the "Button" and
     * the externalResource which should contain a url
     * 
     * @param caption
     * @param externalResource
     */
    public ButtonLink(String caption, ExternalResource externalResource) {
        super();
        super.setWidth(null);
        this.caption = caption;
        setResource(externalResource);
    }

    public void setResource(ExternalResource externalResource) {
        buildHTMLCode(externalResource.getURL());
        super.setContentMode(ContentMode.HTML);
    }

    // The following lines are copy pasted from rendered Vaadin v6.1 buttons.
    private void buildHTMLCode(String url) {
        StringBuilder sb = new StringBuilder("<a href='");
        sb.append(url);
        sb.append("' style='text-decoration: display: block;'>");
        sb.append("<div class='v-button' tabindex='0' style='width: 100%;'>");
        sb.append("<span class='v-button-wrap'>");
        sb.append(caption);
        sb.append("</span>");
        sb.append("</div>");
        sb.append("</a>");
        super.setValue(sb.toString());
    }

}