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

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Here is the source code for org.hip.vif.admin.groupadmin.ui.BibliographyDeleteView.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.ContributionContainer;
import org.hip.vif.admin.groupadmin.data.ContributionWrapper;
import org.hip.vif.admin.groupadmin.tasks.BibliographyDeleteTask;
import org.hip.vif.web.util.VIFViewHelper;
import org.ripla.interfaces.IMessages;
import org.ripla.web.util.RiplaViewHelper;

import com.vaadin.data.Container.Filter;
import com.vaadin.data.Item;
import com.vaadin.data.Property;
import com.vaadin.data.Property.ValueChangeListener;
import com.vaadin.data.util.ObjectProperty;
import com.vaadin.shared.ui.label.ContentMode;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Component;
import com.vaadin.ui.Label;
import com.vaadin.ui.Notification;
import com.vaadin.ui.Notification.Type;
import com.vaadin.ui.Table;
import com.vaadin.ui.VerticalLayout;

/**
 * View to display the different tables that show text entries the administrator
 * wants to delete.
 * 
 * @author Luthiger Created: 09.12.2011
 */
@SuppressWarnings("serial")
public class BibliographyDeleteView extends AbstractContributionView {
    private static final String SUBTITLE_WARNING = "<div class=\"vif-warning\">%s</div>"; //$NON-NLS-1$
    private static final String[] COL_HEADERS = new String[] { "", "container.table.headers.id", //$NON-NLS-1$//$NON-NLS-2$
            "container.table.headers.text" }; //$NON-NLS-1$

    private boolean confirmationMode;

    /**
     * Constructor.
     * 
     * @param inDeletable
     *            {@link ContributionContainer} the deletable entries
     * @param inReferenced
     *            {@link ContributionContainer} the referenced entries with
     *            removalbe references
     * @param inUndeletable
     *            {@link ContributionContainer} the referenced entries with
     *            unremovable references, thus, not deletable by the
     *            administrator
     * @param inTask
     *            {@link BibliographyDeleteTask}
     */
    public BibliographyDeleteView(final ContributionContainer inDeletable, final ContributionContainer inReferenced,
            final ContributionContainer inUndeletable, final BibliographyDeleteTask inTask) {
        confirmationMode = false;
        final VerticalLayout lLayout = new VerticalLayout();
        setCompositionRoot(lLayout);
        lLayout.setSpacing(true);

        final IMessages lMessages = Activator.getMessages();
        lLayout.setStyleName("vif-view"); //$NON-NLS-1$
        lLayout.addComponent(new Label(String.format(VIFViewHelper.TMPL_TITLE, "vif-pagetitle", //$NON-NLS-1$
                lMessages.getMessage("ui.bibliography.link.button.delete")), ContentMode.HTML)); //$NON-NLS-1$

        if (inDeletable.hasItems()) {
            final Label lRemarkDeletable = new Label(lMessages.getMessage("ui.bibliography.link.remark.deletable"), //$NON-NLS-1$
                    ContentMode.HTML);
            lLayout.addComponent(lRemarkDeletable);
            final Table lTable = createTable(inDeletable, inTask, true);
            lLayout.addComponent(lTable);
            final Button lDelete = new Button(lMessages.getMessage("ui.discussion.contribution.button.delete")); //$NON-NLS-1$
            lDelete.addClickListener(new Button.ClickListener() {
                @Override
                public void buttonClick(final ClickEvent inEvent) {
                    if (confirmationMode) {
                        if (!inTask.deleteTexts(inDeletable)) {
                            Notification.show(lMessages.getMessage("errmsg.biblio.delete"), Type.WARNING_MESSAGE); //$NON-NLS-1$
                        }
                    } else {
                        if (VIFViewHelper.processAction(inDeletable)) {
                            confirmationMode = true;
                            inDeletable.addContainerFilter(new SelectedFilter());
                            lRemarkDeletable
                                    .setPropertyDataSource(
                                            new ObjectProperty<String>(
                                                    String.format(SUBTITLE_WARNING,
                                                            lMessages.getMessage(
                                                                    "ui.contributions.process.warning")), //$NON-NLS-1$
                                                    String.class));
                            lTable.setSelectable(false);
                        }
                    }
                }
            });
            lLayout.addComponent(lDelete);
            lLayout.addComponent(RiplaViewHelper.createSpacer());
        }

        if (inReferenced.hasItems()) {
            lLayout.addComponent(new Label(lMessages.getMessage("ui.bibliography.link.remark.referenced"))); //$NON-NLS-1$
            lLayout.addComponent(createTable(inReferenced, inTask, true));
            final Button lRemove = new Button(lMessages.getMessage("ui.bibliography.link.button.removeR")); //$NON-NLS-1$
            lRemove.addClickListener(new Button.ClickListener() {
                @Override
                public void buttonClick(final ClickEvent inEvent) {
                    if (VIFViewHelper.processAction(inReferenced)) {
                        if (!inTask.removeReferences(inReferenced)) {
                            Notification.show(lMessages.getMessage("errmsg.biblio.remove.ref"), //$NON-NLS-1$
                                    Type.WARNING_MESSAGE);
                        }
                    }
                }
            });
            lLayout.addComponent(lRemove);
            lLayout.addComponent(RiplaViewHelper.createSpacer());
        }

        if (inUndeletable.hasItems()) {
            lLayout.addComponent(new Label(lMessages.getMessage("ui.bibliography.link.remark.undeletable"))); //$NON-NLS-1$
            lLayout.addComponent(createTable(inUndeletable, inTask, false));
        }
    }

    private Table createTable(final ContributionContainer inTexts, final ValueChangeListener inTask,
            final boolean inShowCheckbox) {
        final Table outTable = new Table();

        outTable.setStyleName("vif-table"); //$NON-NLS-1$
        outTable.setWidth("100%"); //$NON-NLS-1$

        outTable.setContainerDataSource(inTexts);
        // generate check box
        if (inShowCheckbox) {
            outTable.addGeneratedColumn(ContributionContainer.CONTRIBUTION_CHECK,
                    new VIFViewHelper.CheckBoxColumnGenerator(new VIFViewHelper.IConfirmationModeChecker() {
                        @Override
                        public boolean inConfirmationMode() {
                            return confirmationMode;
                        }
                    }));
        } else {
            outTable.addGeneratedColumn(ContributionContainer.CONTRIBUTION_CHECK, new Table.ColumnGenerator() {
                @Override
                public Object generateCell(final Table inSource, final Object inItemId, final Object inColumnId) {
                    return new Label();
                }
            });
        }

        // generate label component for html text
        outTable.addGeneratedColumn(ContributionContainer.CONTRIBUTION_TEXT, new Table.ColumnGenerator() {
            @Override
            public Component generateCell(final Table inSource, final Object inItemId, final Object inColumnId) {
                return new Label(((ContributionWrapper) inItemId).getContributionText(), ContentMode.HTML);
            }
        });

        outTable.setColumnCollapsingAllowed(true);
        outTable.setColumnReorderingAllowed(true);
        outTable.setSelectable(true);
        outTable.setImmediate(true);
        outTable.setPageLength(0);
        outTable.setColumnExpandRatio(ContributionContainer.CONTRIBUTION_TEXT, 1);
        outTable.addValueChangeListener(inTask);

        outTable.setVisibleColumns(ContributionContainer.NATURAL_COL_ORDER_WO_STATE);
        outTable.setColumnHeaders(VIFViewHelper.getColumnHeaders(COL_HEADERS, Activator.getMessages()));

        return outTable;
    }

    // ---

    private class SelectedFilter implements Filter {
        @SuppressWarnings("unchecked")
        @Override
        public boolean passesFilter(final Object inItemId, final Item inItem) throws UnsupportedOperationException {
            final Property<Boolean> lCheckBox = inItem.getItemProperty(ContributionContainer.CONTRIBUTION_CHECKED);
            return lCheckBox.getValue();
        }

        @Override
        public boolean appliesToProperty(final Object inPropertyId) {
            return ContributionContainer.CONTRIBUTION_CHECKED.equals(inPropertyId);
        }
    }

}