Java tutorial
/** 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.forum.groups.ui; import java.util.Iterator; import org.hip.vif.core.bom.Member; import org.hip.vif.core.bom.MemberHome; import org.hip.vif.core.bom.impl.WorkflowAwareContribution; import org.hip.vif.forum.groups.Activator; import org.hip.vif.forum.groups.data.ContributionContainer; import org.hip.vif.forum.groups.tasks.ContributionsListTask; import org.hip.vif.web.util.BeanWrapperHelper; 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.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.HorizontalLayout; import com.vaadin.ui.Label; import com.vaadin.ui.Table; import com.vaadin.ui.VerticalLayout; /** View displaying the actor's contributions for that he can process them. * * @author Luthiger Created: 01.07.2011 */ @SuppressWarnings("serial") public class ContributionsListView extends AbstractContributionsProcessView { private static final String SUBTITLE_WARNING = "<div class=\"vif-warning\">%s</div>"; //$NON-NLS-1$ private HorizontalLayout buttons; private Table table; private Label subtitle; boolean confirmationMode; /** Constructor for a view to display an author's contributions for that he can either delete them or send a request * for review. In case of discussion groups without review (<code>inNeedsReview = false</code>), the contributions * can be published directly. * * @param inData {@link ContributionContainer} * @param inMember {@link Member} * @param inGroupTitle String the group's title * @param inNeedsReview boolean <code>true</code> if the group with the specified ID is a reviewed group * @param inTask {@link ContributionsListTask} for callback */ public ContributionsListView(final ContributionContainer inData, final Member inMember, final String inGroupTitle, final boolean inNeedsReview, final ContributionsListTask inTask) { confirmationMode = false; final String lFirstname = BeanWrapperHelper.getString(MemberHome.KEY_FIRSTNAME, inMember); final String lFamilyname = BeanWrapperHelper.getString(MemberHome.KEY_NAME, inMember); final IMessages lMessages = Activator.getMessages(); final VerticalLayout lLayout = initComponent(lFirstname, lFamilyname, inGroupTitle, lMessages, "ui.contributions.process.title"); //$NON-NLS-1$ if (inData.hasItems()) { Button lProcess; if (inNeedsReview) { lProcess = new Button(lMessages.getMessage("ui.contributions.process.button.request.review")); //$NON-NLS-1$ lProcess.addClickListener(new Button.ClickListener() { @Override public void buttonClick(final ClickEvent inEvent) { if (VIFViewHelper.processAction(inData)) { inTask.requestReview(); } } }); } else { lProcess = new Button(lMessages.getMessage("ui.contributions.process.button.publish")); //$NON-NLS-1$ lProcess.addClickListener(new Button.ClickListener() { @Override public void buttonClick(final ClickEvent inEvent) { if (VIFViewHelper.processAction(inData)) { inTask.publishContribution(false); } } }); } final Button lDelete = new Button(lMessages.getMessage("ui.contributions.process.button.delete")); //$NON-NLS-1$ lDelete.addClickListener(new Button.ClickListener() { @Override public void buttonClick(final ClickEvent inEvent) { if (isConfirmationMode()) { inTask.deleteContributions(); } else { if (VIFViewHelper.processAction(inData)) { confirmationMode = true; inData.addContainerFilter(new SelectedFilter()); subtitle.setPropertyDataSource(new ObjectProperty<String>( String.format(SUBTITLE_WARNING, lMessages.getMessage("ui.contributions.process.warning")), //$NON-NLS-1$ String.class)); table.setSelectable(false); disableOtherButtons(inEvent.getButton()); } } } }); subtitle = new Label(lMessages.getMessage("ui.contributions.process.subtitle"), ContentMode.HTML); //$NON-NLS-1$ lLayout.addComponent(subtitle); // table of pending contributions table = createTable(inData, WorkflowAwareContribution.S_PRIVATE, inTask); lLayout.addComponent(table); // action buttons buttons = RiplaViewHelper.createButtons(lProcess, lDelete); lLayout.addComponent(buttons); } else { lLayout.addComponent(new Label( lMessages.getFormattedMessage("ui.contributions.process.no.pending", lFirstname, lFamilyname))); //$NON-NLS-1$ } } private void disableOtherButtons(final Button inButton) { final Iterator<Component> lIterator = buttons.iterator(); while (lIterator.hasNext()) { final Component lComponent = lIterator.next(); if (lComponent instanceof Button) { if (!inButton.equals(lComponent)) { lComponent.setEnabled(false); } } } } private class SelectedFilter implements Filter { @Override public boolean passesFilter(final Object inItemId, final Item inItem) throws UnsupportedOperationException { final Property<?> lCheckBox = inItem.getItemProperty(ContributionContainer.CONTRIBUTION_CHECKED); return (Boolean) lCheckBox.getValue(); } @Override public boolean appliesToProperty(final Object inPropertyId) { return ContributionContainer.CONTRIBUTION_CHECKED.equals(inPropertyId); } } @Override protected boolean isConfirmationMode() { return confirmationMode; } /** Checks whether this component is the origin of a value change event. * * @param inProperty {@link Property} * @return boolean <code>true</code> if the value change event originated on this component */ public boolean checkSelectionSource(final Property<?> inProperty) { return table.equals(inProperty); } }