org.pepstock.jem.gwt.client.panels.gfs.TreeOptions.java Source code

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

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/**
JEM, the BEE - Job Entry Manager, the Batch Execution Environment
Copyright (C) 2012-2015   Andrea "Stock" Stocchero
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;

import org.pepstock.jem.gwt.client.Sizes;
import org.pepstock.jem.gwt.client.commons.Images;
import org.pepstock.jem.gwt.client.commons.InspectListener;
import org.pepstock.jem.gwt.client.commons.Styles;
import org.pepstock.jem.gwt.client.security.ClientPermissions;
import org.pepstock.jem.node.security.Permissions;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.resources.client.ImageResource;
import com.google.gwt.user.client.ui.Anchor;
import com.google.gwt.user.client.ui.CellPanel;
import com.google.gwt.user.client.ui.DisclosurePanel;
import com.google.gwt.user.client.ui.Grid;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.VerticalPanel;

/**
 * Component which shows output produced by job. Uses highlighter in PLAIN to show data.<br>
 * Every file is requested by RPC only when the user asks for. 
 * 
 * @author Andrea "Stock" Stocchero
 * @version 1.0   
 *
 */
@SuppressWarnings("javadoc")
public class TreeOptions extends VerticalPanel {

    static {
        Styles.INSTANCE.common().ensureInjected();
    }

    public static final String DATA_OPTION = "data";

    public static final String LIBRARY_OPTION = "library";

    public static final String SOURCES_OPTION = "sources";

    public static final String CLASS_OPTION = "class";

    public static final String BINARY_OPTION = "binary";

    private InspectListener<String> listener = null;

    private CellPanel selected = null;

    public TreeOptions() {
        setWidth(Sizes.HUNDRED_PERCENT);
        setHeight(Sizes.HUNDRED_PERCENT);

        // Root of output tree
        HorizontalPanel header = new HorizontalPanel();
        header.setHorizontalAlignment(ALIGN_LEFT);
        header.setVerticalAlignment(ALIGN_MIDDLE);
        header.setSpacing(8);
        header.add(new Image(Images.INSTANCE.driveOpen24()));
        header.add(new Label("Global file system"));

        DisclosurePanel admin = new DisclosurePanel();
        admin.setHeader(header);
        admin.setAnimationEnabled(true);
        admin.setOpen(true);

        CellPanel data = createItem("Data", DATA_OPTION, Images.INSTANCE.folderRed24(), Permissions.GFS_DATA);
        CellPanel lib = createItem("Library", LIBRARY_OPTION, Images.INSTANCE.folderRed24(),
                Permissions.GFS_LIBRARY);
        CellPanel src = createItem("Sources", SOURCES_OPTION, Images.INSTANCE.folderRed24(),
                Permissions.GFS_SOURCES);
        CellPanel classes = createItem("Class", CLASS_OPTION, Images.INSTANCE.folderRed24(), Permissions.GFS_CLASS);
        CellPanel bin = createItem("Binary", BINARY_OPTION, Images.INSTANCE.folderRed24(), Permissions.GFS_BINARY);

        /*-------------------------+
         | Add options             |
         +-------------------------*/
        VerticalPanel statusPanel = new VerticalPanel();
        if (data != null) {
            statusPanel.add(data);
        }
        if (lib != null) {
            statusPanel.add(lib);
        }
        if (src != null) {
            statusPanel.add(src);
        }
        if (classes != null) {
            statusPanel.add(classes);
        }
        if (bin != null) {
            statusPanel.add(bin);
        }

        if (statusPanel.getElement().getChildCount() > 0) {
            admin.setContent(statusPanel);
            Grid grid = new Grid(1, 1);
            grid.setWidget(0, 0, admin);
            add(grid);
        }
    }

    /**
     * @param listener the listener to set
     */
    public void setListener(InspectListener<String> listener) {
        this.listener = listener;
    }

    private void selectPanel(CellPanel select) {
        if (select.equals(selected)) {
            return;
        }
        if (selected != null) {
            selected.setStyleName(Styles.INSTANCE.common().adminUnselectedTreeItem());
        }
        select.setStyleName(Styles.INSTANCE.common().adminSelectedTreeItem());
        selected = select;
    }

    /**
     * 
     * @param description
     * @param option
     * @return
     */
    private final CellPanel createItem(String description, final String option, ImageResource icon,
            String permission) {
        if (!ClientPermissions.isAuthorized(Permissions.GFS, permission)) {
            return null;
        }

        /*-------------------------+
         | Node inspect            |
         +-------------------------*/

        // this is the inside panel
        final HorizontalPanel options = new HorizontalPanel();
        options.setHorizontalAlignment(ALIGN_LEFT);
        options.setVerticalAlignment(ALIGN_MIDDLE);
        options.setSpacing(8);

        // create the link
        final Anchor anchor = new Anchor(description);
        anchor.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                if (listener != null) {
                    listener.inspect(option);
                    selectPanel(options);
                }
            }
        });

        // add the icon if present
        if (icon != null) {
            options.add(new Image(icon));
        }
        // add the link
        options.add(anchor);
        setCellWidth(anchor, Sizes.HUNDRED_PERCENT);
        return options;
    }

}