| /* |
| * 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.cocoon.forms.datatype; |
| |
| import org.apache.avalon.framework.context.Context; |
| import org.apache.avalon.framework.context.ContextException; |
| import org.apache.avalon.framework.context.Contextualizable; |
| import org.apache.cocoon.forms.FormsConstants; |
| import org.apache.cocoon.forms.util.DomHelper; |
| import org.w3c.dom.Element; |
| |
| import java.util.Map; |
| |
| /** |
| * Builds a selection list that will take its values from the flow page data. |
| * The items list and, for each item, its value and label, are fetched using |
| * JXPath expressions. |
| * |
| * <p>If an item has no label, its value is used as the label. |
| * |
| * <p>Example: |
| * <pre> |
| * <fd:selection-list type="flow-jxpath" |
| * list-path="selectList" value-path="value" label-path="label"/gt; |
| * </pre> |
| * Flow script: |
| * <pre> |
| * var data = { |
| * selectList: [{value:3, label:"three"}, {value:4}] |
| * }; |
| * form.showForm("form.html", data); |
| * </pre> |
| * |
| * @see org.apache.cocoon.forms.datatype.FlowJXPathSelectionList |
| * @version $Id$ |
| */ |
| public class FlowJXPathSelectionListBuilder implements SelectionListBuilder, Contextualizable { |
| |
| private Context context; |
| |
| public void contextualize(Context context) throws ContextException { |
| this.context = context; |
| } |
| |
| public SelectionList build(Element selectionListElement, Datatype datatype) throws Exception { |
| |
| String listPath = DomHelper.getAttribute(selectionListElement, "list-path"); |
| String valuePath = DomHelper.getAttribute(selectionListElement, "value-path"); |
| |
| Map nspfx = DomHelper.getInheritedNSDeclarations(selectionListElement); |
| String i18nPfx = FormsConstants.I18N_PREFIX; |
| if (nspfx != null) { |
| i18nPfx = (String)nspfx.get( FormsConstants.I18N_NS ); |
| if (i18nPfx == null ) { |
| i18nPfx = FormsConstants.I18N_PREFIX; |
| } |
| } |
| |
| String labelPath = DomHelper.getAttribute(selectionListElement, "label-path", null); |
| boolean labelIsI18nKey = false; |
| if (labelPath == null) { |
| labelPath = DomHelper.getAttribute(selectionListElement, i18nPfx + ":label-path"); |
| labelIsI18nKey = true; |
| } |
| |
| String nullText = DomHelper.getAttribute(selectionListElement, "null-text", null); |
| boolean nullTextIsI18nKey = false; |
| if (nullText == null) { |
| nullText = DomHelper.getAttribute(selectionListElement, i18nPfx + ":null-text", null); |
| if (nullText != null) { |
| nullTextIsI18nKey = true; |
| } |
| } |
| |
| String i18nCatalog = DomHelper.getAttribute(selectionListElement, "catalogue", null); |
| |
| return new FlowJXPathSelectionList(context, |
| listPath, |
| valuePath, |
| labelPath, |
| datatype, |
| nullText, |
| nullTextIsI18nKey, |
| i18nCatalog, |
| labelIsI18nKey); |
| } |
| |
| } |