| /* |
| * $Id$ |
| * |
| * 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.struts2.views.java.simple; |
| |
| import com.opensymphony.xwork2.util.ValueStack; |
| |
| import org.apache.commons.lang3.StringEscapeUtils; |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.struts2.util.MakeIterator; |
| import org.apache.struts2.views.java.Attributes; |
| import org.apache.struts2.views.java.TagGenerator; |
| |
| import java.io.IOException; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| public class CheckboxListHandler extends AbstractTagHandler implements TagGenerator { |
| public void generate() throws IOException { |
| |
| Map<String, Object> params = context.getParameters(); |
| |
| // Get parameters |
| Object listObj = params.get("list"); |
| String listKey = (String) params.get("listKey"); |
| String listValue = (String) params.get("listValue"); |
| String name = (String) params.get("name"); |
| Object disabled = params.get("disabled"); |
| String id = (String) params.get("id"); |
| |
| int cnt = 1; |
| |
| // This will interate through all lists |
| ValueStack stack = this.context.getStack(); |
| if (listObj != null) { |
| Iterator itt = MakeIterator.convert(listObj); |
| while (itt.hasNext()) { |
| Object item = itt.next(); |
| stack.push(item); |
| |
| // key |
| Object itemKey = findValue(listKey != null ? listKey : "top"); |
| String itemKeyStr = StringUtils.defaultString(itemKey == null ? null : itemKey.toString()); |
| |
| // value |
| Object itemValue = findValue(listValue != null ? listValue : "top"); |
| String itemValueStr = StringUtils.defaultString(itemValue == null ? null : itemValue |
| .toString()); |
| |
| // Checkbox button section |
| Attributes a = new Attributes(); |
| a.add("type", "checkbox").add("name", name).add("value", itemKeyStr) |
| .addIfTrue("checked", isChecked(params, itemKeyStr)) |
| .addIfTrue("readonly", params.get("readonly")).addIfTrue("disabled", disabled) |
| .addIfExists("tabindex", params.get("tabindex")) |
| .addIfExists("id", id + "-" + Integer.toString(cnt)); |
| start("input", a); |
| end("input"); |
| |
| // Label section |
| a = new Attributes(); |
| a.add("for", id + "-" + Integer.toString(cnt)).addIfExists("class", params.get("cssClass")) |
| .addIfExists("style", params.get("cssStyle")); |
| super.start("label", a); |
| if (StringUtils.isNotEmpty(itemValueStr)) |
| characters(itemValueStr); |
| super.end("label"); |
| |
| // Hidden input section |
| a = new Attributes(); |
| a.add("type", "hidden") |
| .add("id", |
| "__multiselect_" |
| + StringUtils.defaultString(StringEscapeUtils.escapeHtml4(id))) |
| .add("name", |
| "__multiselect_" |
| + StringUtils.defaultString(StringEscapeUtils.escapeHtml4(name))) |
| .add("value", "").addIfTrue("disabled", disabled); |
| start("input", a); |
| end("input"); |
| |
| stack.pop(); |
| cnt++; |
| } |
| } |
| } |
| |
| /** |
| * It's set to true if the nameValue (the value associated with the name |
| * which is typically set in the action is equal to the current key value. |
| * |
| * @param params |
| * the params |
| * |
| * @param itemKeyStr |
| * the item key str |
| * |
| * @return the boolean |
| */ |
| private Boolean isChecked(Map<String, Object> params, String itemKeyStr) { |
| Boolean checked = false; |
| if (itemKeyStr != null) { |
| |
| // NameValue are the values that is provided by the name property |
| // in the action |
| Object nameValue = params.get("nameValue"); |
| |
| if (nameValue != null) { |
| |
| Iterator itt = MakeIterator.convert(nameValue); |
| while (itt.hasNext()) { |
| |
| String value = itt.next().toString(); |
| if (checked = value.equalsIgnoreCase(itemKeyStr)) { |
| break; |
| } |
| |
| } |
| |
| } |
| } |
| return checked; |
| } |
| |
| } |