Java tutorial
///////////////////////////////////////////////////////////////////////////// // // Project ProjectForge Community Edition // www.projectforge.org // // Copyright (C) 2001-2014 Kai Reinhard (k.reinhard@micromata.de) // // ProjectForge is dual-licensed. // // This community edition 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; version 3 of the License. // // This community edition 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.projectforge.web.teamcal.event; import java.util.ArrayList; import java.util.List; import org.apache.wicket.Component; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.ajax.form.AjaxFormComponentUpdatingBehavior; import org.apache.wicket.markup.html.form.DropDownChoice; import org.apache.wicket.markup.html.form.FormComponent; import org.apache.wicket.markup.html.form.IChoiceRenderer; import org.apache.wicket.model.IModel; import org.apache.wicket.model.PropertyModel; import org.projectforge.business.teamcal.event.model.ReminderActionType; import org.projectforge.business.teamcal.event.model.ReminderDurationUnit; import org.projectforge.business.teamcal.event.model.TeamEventDO; import org.projectforge.common.i18n.I18nEnum; import org.projectforge.framework.utils.NumberHelper; import org.projectforge.web.wicket.WicketUtils; import org.projectforge.web.wicket.components.MinMaxNumberField; import org.projectforge.web.wicket.flowlayout.DropDownChoicePanel; import org.projectforge.web.wicket.flowlayout.FieldsetPanel; /** * Component renders DropDown to select reminder action, TextField to set duration and DropDown to select duration type. * * @author M. Lauterbach (m.lauterbach@micromata.de) * */ public class TeamEventReminderComponent extends Component { private static final long serialVersionUID = -7384630904654370695L; private static final Integer DURATION_MAX = 1000; private final TeamEventDO data; @SuppressWarnings("unused") // used by wicked private List<ReminderActionType> reminderActionTypeList; @SuppressWarnings("unused") // used by wicked private List<ReminderDurationUnit> reminderDurationTypeList; private final FieldsetPanel reminderPanel; /** * @param id * @param model */ public TeamEventReminderComponent(final String id, final IModel<TeamEventDO> model, final FieldsetPanel fieldSet) { super(id, model); data = model.getObject(); this.reminderPanel = fieldSet; } /** * @see org.apache.wicket.Component#onInitialize() */ @SuppressWarnings({ "unchecked", "serial" }) @Override protected void onInitialize() { super.onInitialize(); final boolean reminderOptionVisibility = data.getReminderActionType() != null; // ### unchecked reminderDurationTypeList = (List<ReminderDurationUnit>) getTypeList(ReminderDurationUnit.class); reminderActionTypeList = (List<ReminderActionType>) getTypeList(ReminderActionType.class); final IChoiceRenderer<ReminderDurationUnit> reminderDurationTypeRenderer = (IChoiceRenderer<ReminderDurationUnit>) getChoiceRenderer( ReminderDurationUnit.class); // final IChoiceRenderer<ReminderActionType> reminderActionTypeRenderer = (IChoiceRenderer<ReminderActionType>) getChoiceRenderer( ReminderActionType.class); // // ### final MinMaxNumberField<Integer> reminderDuration = new MinMaxNumberField<Integer>( reminderPanel.getTextFieldId(), new PropertyModel<Integer>(data, "reminderDuration"), 0, DURATION_MAX); WicketUtils.setSize(reminderDuration, 3); setComponentProperties(reminderDuration, reminderOptionVisibility, true); // reminder duration dropDown final IModel<List<ReminderDurationUnit>> reminderDurationChoicesModel = new PropertyModel<List<ReminderDurationUnit>>( this, "reminderDurationTypeList"); final IModel<ReminderDurationUnit> reminderDurationActiveModel = new PropertyModel<ReminderDurationUnit>( data, "reminderDurationType"); final DropDownChoicePanel<ReminderDurationUnit> reminderDurationTypeChoice = new DropDownChoicePanel<ReminderDurationUnit>( reminderPanel.newChildId(), reminderDurationActiveModel, reminderDurationChoicesModel, reminderDurationTypeRenderer, false); setComponentProperties(reminderDurationTypeChoice.getDropDownChoice(), reminderOptionVisibility, true); // reminder action dropDown final IModel<List<ReminderActionType>> reminderActionTypeChoiceModel = new PropertyModel<List<ReminderActionType>>( this, "reminderActionTypeList"); final IModel<ReminderActionType> reminderActionActiveModel = new PropertyModel<ReminderActionType>(data, "reminderActionType"); final DropDownChoicePanel<ReminderActionType> reminderActionTypeChoice = new DropDownChoicePanel<ReminderActionType>( reminderPanel.newChildId(), new DropDownChoice<ReminderActionType>(DropDownChoicePanel.WICKET_ID, reminderActionActiveModel, reminderActionTypeChoiceModel, reminderActionTypeRenderer) { /** * @see org.apache.wicket.markup.html.form.AbstractSingleSelectChoice#getNullKey() */ @Override protected String getNullValidKey() { return "plugins.teamcal.event.reminder.NONE"; } }); reminderActionTypeChoice.setNullValid(true); reminderActionTypeChoice.getDropDownChoice().add(new AjaxFormComponentUpdatingBehavior("onchange") { @Override protected void onUpdate(final AjaxRequestTarget target) { final boolean isVisible = data.getReminderActionType() != null; if (isVisible == true) { // Pre-set default values if the user selects a reminder action: if (NumberHelper.greaterZero(data.getReminderDuration()) == false) { data.setReminderDuration(15); } if (data.getReminderDurationUnit() == null) { data.setReminderDurationUnit(ReminderDurationUnit.MINUTES); } } reminderDuration.setVisible(isVisible); reminderDurationTypeChoice.getDropDownChoice().setVisible(isVisible); reminderDurationTypeChoice.setRequired(isVisible); target.add(reminderDurationTypeChoice.getDropDownChoice(), reminderDuration); } }); reminderPanel.add(reminderActionTypeChoice); reminderPanel.add(reminderDuration); reminderPanel.add(reminderDurationTypeChoice); } private void setComponentProperties(final FormComponent<?> comp, final boolean visible, final boolean markUp) { comp.setVisible(visible); comp.setRequired(visible); comp.setOutputMarkupId(markUp); comp.setOutputMarkupPlaceholderTag(markUp); } private List<? extends I18nEnum> getTypeList(final Class<? extends I18nEnum> obj) { final List<I18nEnum> list = new ArrayList<I18nEnum>(); for (final I18nEnum type : obj.getEnumConstants()) { list.add(type); } return list; } private IChoiceRenderer<? extends I18nEnum> getChoiceRenderer(final Class<? extends I18nEnum> c) { final IChoiceRenderer<I18nEnum> reminderActionTypeRenderer = new IChoiceRenderer<I18nEnum>() { private static final long serialVersionUID = -4264875398872979820L; @Override public Object getDisplayValue(final I18nEnum object) { return getString(object.getI18nKey()); } @Override public String getIdValue(final I18nEnum object, final int index) { return object.toString(); } }; return reminderActionTypeRenderer; } /** * @see org.apache.wicket.Component#onRender() */ @Override protected void onRender() { } }