| /* |
| * 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.util.DomHelper; |
| import org.apache.cocoon.forms.util.JavaScriptHelper; |
| import org.mozilla.javascript.Function; |
| import org.w3c.dom.Element; |
| |
| /** |
| * Builds a selection list that will take its values from a JavaScript snippet. |
| * The snippet runs in scope where the list filter (if any) and the view data are |
| * available as <code>filter</code> and <code>viewData</code> respectively, along |
| * with all flowscript functions. It must return a list of (value, label) pairs. |
| * <p> |
| * If an item has no label, its value is used as the label. If the declaration has |
| * a <code>catalogue</code> attribute, the labels are interpreted as i18n keys in |
| * that catalogue. |
| * <p> |
| * Example: |
| * <pre> |
| * <fd:selection-list type="flow-function"> |
| * return [ {value: 3, label: "three"}, {value:4} ]; |
| * </fd:selection-list> |
| * </pre> |
| * |
| * @see org.apache.cocoon.forms.datatype.JavaScriptSelectionList |
| * @since 2.1.9 |
| * @version $Id$ |
| */ |
| public class JavaScriptSelectionListBuilder 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 i18nCatalog = DomHelper.getAttribute(selectionListElement, "catalogue", null); |
| |
| Function function = JavaScriptHelper.buildFunction(selectionListElement, "buildSelectionList", new String[] { "filter" }); |
| |
| return new JavaScriptSelectionList(context, datatype, function, i18nCatalog, DomHelper.getLocationObject(selectionListElement)); |
| } |
| } |