| /* |
| * 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.binding; |
| |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| import org.apache.avalon.framework.CascadingRuntimeException; |
| import org.apache.avalon.framework.context.Context; |
| |
| import org.apache.cocoon.components.ContextHelper; |
| import org.apache.cocoon.components.flow.javascript.ScriptableMap; |
| import org.apache.cocoon.forms.formmodel.Widget; |
| import org.apache.cocoon.forms.util.JavaScriptHelper; |
| |
| import org.apache.commons.jxpath.JXPathContext; |
| import org.apache.commons.jxpath.Pointer; |
| import org.mozilla.javascript.Function; |
| import org.mozilla.javascript.Scriptable; |
| |
| /** |
| * |
| * @version $Id$ |
| */ |
| public class JavaScriptJXPathBinding extends JXPathBindingBase { |
| |
| final static String[] LOAD_PARAMS = { "widget", "jxpathPointer", "jxpathContext", "childBindings" }; |
| final static String[] SAVE_PARAMS = { "widget", "jxpathPointer", "jxpathContext", "childBindings" }; |
| |
| private final Context avalonContext; |
| private final String id; |
| private final String path; |
| private final Function loadScript; |
| private final Function saveScript; |
| private final Scriptable childBindings; |
| private final Map childBindingsMap; |
| |
| |
| public JavaScriptJXPathBinding(Context context, |
| JXPathBindingBuilderBase.CommonAttributes commonAtts, |
| String id, |
| String path, |
| Function loadScript, |
| Function saveScript, |
| Map childBindings) { |
| super(commonAtts); |
| this.id = id; |
| this.path = path; |
| this.loadScript = loadScript; |
| this.saveScript = saveScript; |
| this.avalonContext = context; |
| |
| // Set parent on child bindings |
| for (Iterator i = childBindings.values().iterator(); i.hasNext();) { |
| ((Binding) i.next()).setParent(this); |
| } |
| |
| this.childBindingsMap = childBindings; |
| this.childBindings = new ScriptableMap(childBindings); |
| } |
| |
| public String getPath() { return path; } |
| public String getId() { return id; } |
| public Context getContext() { return avalonContext; } |
| public Function getLoadScript() { return loadScript; } |
| public Function getSaveScript() { return saveScript; } |
| public Map getChildBindingsMap() { return childBindingsMap; } |
| |
| public void doLoad(Widget frmModel, JXPathContext jctx) { |
| if (this.loadScript != null) { |
| Widget widget = selectWidget(frmModel, this.id); |
| |
| // Move to widget context |
| Pointer pointer = jctx.getPointer(this.path); |
| |
| Map objectModel = ContextHelper.getObjectModel(this.avalonContext); |
| |
| try { |
| JXPathContext newCtx = pointer.getNode() == null ? null : |
| jctx.getRelativeContext(pointer); |
| |
| JavaScriptHelper.callFunction(this.loadScript, widget, |
| new Object[]{widget, pointer, newCtx, this.childBindings}, objectModel); |
| |
| } catch (RuntimeException re) { |
| // rethrow |
| throw re; |
| } catch (Exception e) { |
| throw new CascadingRuntimeException("Error invoking JavaScript event handler", e); |
| } |
| } else { |
| if (getLogger().isInfoEnabled()) { |
| getLogger().info("[Javascript Binding] - loadForm: No javascript code available. Widget id=" + this.getId()); |
| } |
| } |
| } |
| |
| public void doSave(Widget frmModel, JXPathContext jctx) throws BindingException { |
| if (this.saveScript != null) { |
| Widget widget = selectWidget(frmModel, this.id); |
| |
| // Move to widget context and create the path if needed |
| Pointer pointer = jctx.createPath(this.path); |
| JXPathContext widgetCtx = jctx.getRelativeContext(pointer); |
| try { |
| Map objectModel = ContextHelper.getObjectModel(this.avalonContext); |
| |
| JavaScriptHelper.callFunction(this.saveScript, widget, |
| new Object[]{widget, pointer, widgetCtx, this.childBindings}, objectModel); |
| |
| } catch (RuntimeException re) { |
| // rethrow |
| throw re; |
| } catch (Exception e) { |
| throw new CascadingRuntimeException("Error invoking JavaScript event handler", e); |
| } |
| } else { |
| if (getLogger().isInfoEnabled()) { |
| getLogger().info("[Javascript Binding] - saveForm: No code available on the javascript binding with id '" + getId() + "'"); |
| } |
| } |
| } |
| } |