Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ package org.apache.syncope.client.console.wicket.markup.html.form; import java.io.Serializable; import java.util.List; import java.util.UUID; import org.apache.commons.lang3.math.NumberUtils; import org.apache.syncope.client.console.commons.Constants; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.ajax.form.AjaxFormComponentUpdatingBehavior; import org.apache.wicket.markup.html.basic.Label; import org.apache.wicket.markup.html.form.TextField; import org.apache.wicket.markup.html.list.ListItem; import org.apache.wicket.model.IModel; import org.apache.wicket.model.Model; import org.springframework.util.StringUtils; public class SpinnerFieldPanel<T extends Number> extends FieldPanel<T> { private static final long serialVersionUID = 6413819574530703577L; private final String name; private final Class<T> reference; private final IModel<T> model; private final T min; private final T max; @SuppressWarnings("unchecked") public SpinnerFieldPanel(final String id, final String name, final Class<T> reference, final IModel<T> model, final T min, final T max) { super(id, model); this.name = name; this.reference = reference; this.model = model; this.min = min; this.max = max; String uuid = UUID.randomUUID().toString(); field = new TextField<T>("spinnerField", model, reference); field.setMarkupId(uuid); add(field.setLabel(new Model<String>(name))); if (!isReadOnly()) { field.add(new AjaxFormComponentUpdatingBehavior(Constants.ON_CHANGE) { private static final long serialVersionUID = -1107858522700306810L; @Override protected void onUpdate(final AjaxRequestTarget target) { // nothing to do } }); } final StringBuilder statements = new StringBuilder(); statements.append("jQuery(function() {").append("var spinner = $('#").append(uuid).append("').spinner();") .append("$('#").append(uuid).append("').spinner(") .append("'option', 'stop', function(event, ui) { $(this).change(); });"); if (this.min != null) { statements.append("$('#").append(uuid).append("').spinner(").append("'option', 'min', ") .append(this.min).append(");"); } if (this.max != null) { statements.append("$('#").append(uuid).append("').spinner(").append("'option', 'max', ") .append(this.max).append(");"); } statements.append("});"); Label spinnerFieldJS = new Label("spinnerFieldJS", statements.toString()); spinnerFieldJS.setEscapeModelStrings(false); add(spinnerFieldJS); } @Override public SpinnerFieldPanel<T> setNewModel(final List<Serializable> list) { setNewModel(new Model<T>() { private static final long serialVersionUID = 527651414610325237L; @Override public T getObject() { T value = null; if (list != null && !list.isEmpty() && StringUtils.hasText(list.get(0).toString())) { value = reference.equals(Integer.class) ? reference.cast(NumberUtils.toInt(list.get(0).toString())) : reference.equals(Long.class) ? reference.cast(NumberUtils.toLong(list.get(0).toString())) : reference.equals(Short.class) ? reference.cast(NumberUtils.toShort(list.get(0).toString())) : reference.equals(Float.class) ? reference.cast(NumberUtils.toFloat(list.get(0).toString())) : reference.equals(byte.class) ? reference.cast( NumberUtils.toByte(list.get(0).toString())) : reference.cast( NumberUtils.toDouble(list.get(0).toString())); } return value; } @Override public void setObject(final T object) { list.clear(); if (object != null) { list.add(object.toString()); } } }); return this; } @SuppressWarnings("rawtypes") @Override public SpinnerFieldPanel<T> setNewModel(final ListItem item) { field.setModel(new Model<T>() { private static final long serialVersionUID = 6799404673615637845L; @Override public T getObject() { T number = null; final Object obj = item.getModelObject(); if (obj != null && !obj.toString().isEmpty()) { if (obj instanceof String) { number = reference.equals(Integer.class) ? reference.cast(Integer.valueOf((String) obj)) : reference.equals(Long.class) ? reference.cast(Long.valueOf((String) obj)) : reference.equals(Short.class) ? reference.cast(Short.valueOf((String) obj)) : reference.equals(Float.class) ? reference.cast(Float.valueOf((String) obj)) : reference.equals(byte.class) ? reference.cast(Byte.valueOf((String) obj)) : reference.cast(Double.valueOf((String) obj)); } else if (obj instanceof Number) { // Don't parse anything number = reference.cast(obj); } } return number; } @Override @SuppressWarnings("unchecked") public void setObject(final T object) { item.setModelObject(object == null ? null : object.toString()); } }); return this; } @Override public SpinnerFieldPanel<T> clone() { SpinnerFieldPanel<T> panel = new SpinnerFieldPanel<T>(getId(), name, reference, model, min, max); panel.setRequired(isRequired()); panel.setReadOnly(isReadOnly()); panel.setTitle(title); if (isRequiredLabelAdded) { panel.addRequiredLabel(); } return panel; } }