org.hip.vif.admin.groupadmin.ui.GroupContentView.java Source code

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Here is the source code for org.hip.vif.admin.groupadmin.ui.GroupContentView.java

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/**
   This package is part of the application VIF.
   Copyright (C) 2011-2014, Benno Luthiger
    
   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 2 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, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package org.hip.vif.admin.groupadmin.ui;

import org.hip.vif.admin.groupadmin.Activator;
import org.hip.vif.admin.groupadmin.data.GroupContentContainer;
import org.hip.vif.admin.groupadmin.data.GroupContentWrapper;
import org.hip.vif.admin.groupadmin.tasks.AdminQuestionListTask;
import org.hip.vif.core.bom.Group;
import org.hip.vif.web.bom.GroupHome;
import org.hip.vif.web.util.BeanWrapperHelper;
import org.hip.vif.web.util.VIFViewHelper;
import org.ripla.interfaces.IMessages;

import com.vaadin.event.ItemClickEvent;
import com.vaadin.event.ShortcutAction.KeyCode;
import com.vaadin.event.ShortcutListener;
import com.vaadin.shared.ui.label.ContentMode;
import com.vaadin.ui.CustomComponent;
import com.vaadin.ui.Label;
import com.vaadin.ui.Tree;
import com.vaadin.ui.VerticalLayout;

/** View to display the list of questions belonging to a specified discussion group.
 *
 * @author Luthiger Created: 20.11.2011 */
@SuppressWarnings("serial")
public class GroupContentView extends CustomComponent {
    private final AdminQuestionListTask task;

    /** View constructor
     * 
     * @param inGroup {@link Group}
     * @param inQuestions {@link GroupContentContainer}
     * @param inTask {@link AdminQuestionListTask} */
    public GroupContentView(final Group inGroup, final GroupContentContainer inQuestions,
            final AdminQuestionListTask inTask) {
        task = inTask;
        final VerticalLayout lLayout = new VerticalLayout();
        setCompositionRoot(lLayout);

        final IMessages lMessages = Activator.getMessages();
        lLayout.setStyleName("vif-table"); //$NON-NLS-1$
        final String lTitle = lMessages.getFormattedMessage("ui.discussion.questions.view.title.page", //$NON-NLS-1$
                BeanWrapperHelper.getLong(GroupHome.KEY_ID, inGroup),
                BeanWrapperHelper.getString(GroupHome.KEY_NAME, inGroup));
        lLayout.addComponent(
                new Label(String.format(VIFViewHelper.TMPL_TITLE, "vif-pagetitle", lTitle), ContentMode.HTML)); //$NON-NLS-1$ //$NON-NLS-2$

        final Label lSubtitle = new Label(String.format(VIFViewHelper.TMPL_TITLE, "vif-description", //$NON-NLS-1$
                lMessages.getMessage("ui.discussion.questions.view.title.sub")), ContentMode.HTML); //$NON-NLS-1$
        lLayout.addComponent(lSubtitle);

        final Tree lTree = new Tree();
        lTree.focus();
        lTree.setContainerDataSource(inQuestions);
        lLayout.addComponent(lTree);

        for (final GroupContentWrapper lNode : inQuestions.getExpandedNodes()) {
            lTree.expandItem(lNode);
        }

        lTree.addItemClickListener(new ItemClickEvent.ItemClickListener() {
            @Override
            public void itemClick(final ItemClickEvent inEvent) {
                task.processSelection((GroupContentWrapper) inEvent.getItemId());
            }
        });
        lTree.addShortcutListener(new ExtendedShortcutListener("enter", KeyCode.ENTER)); //$NON-NLS-1$
    }

    private class ExtendedShortcutListener extends ShortcutListener {
        public ExtendedShortcutListener(final String inShorthandCaption, final int inKey) {
            super(inShorthandCaption, inKey, null);
        }

        @Override
        public void handleAction(final Object inSender, final Object inTarget) {
            task.processSelection((GroupContentWrapper) ((Tree) inTarget).getValue());
        }
    }

}