001/* 002 * (C) Copyright 2006-2007 Nuxeo SAS (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * <a href="mailto:at@nuxeo.com">Anahide Tchertchian</a> 016 * 017 * $Id: FileWidgetTypeHandler.java 30416 2008-02-21 19:10:37Z atchertchian $ 018 */ 019 020package org.nuxeo.ecm.platform.forms.layout.facelets.plugins; 021 022import javax.faces.view.facelets.ComponentHandler; 023import javax.faces.view.facelets.CompositeFaceletHandler; 024import javax.faces.view.facelets.FaceletContext; 025import javax.faces.view.facelets.FaceletHandler; 026import javax.faces.view.facelets.TagAttribute; 027import javax.faces.view.facelets.TagAttributes; 028import javax.faces.view.facelets.TagConfig; 029 030import org.nuxeo.ecm.platform.forms.layout.api.BuiltinWidgetModes; 031import org.nuxeo.ecm.platform.forms.layout.api.FieldDefinition; 032import org.nuxeo.ecm.platform.forms.layout.api.Widget; 033import org.nuxeo.ecm.platform.forms.layout.api.exceptions.WidgetException; 034import org.nuxeo.ecm.platform.forms.layout.facelets.FaceletHandlerHelper; 035import org.nuxeo.ecm.platform.forms.layout.facelets.ValueExpressionHelper; 036import org.nuxeo.ecm.platform.ui.web.component.file.UIInputFile; 037import org.nuxeo.ecm.platform.ui.web.component.file.UIOutputFile; 038import org.nuxeo.ecm.platform.ui.web.component.seam.UIHtmlText; 039 040import com.sun.faces.facelets.tag.TagAttributesImpl; 041 042/** 043 * File widget. 044 * 045 * @author <a href="mailto:at@nuxeo.com">Anahide Tchertchian</a> 046 */ 047public class FileWidgetTypeHandler extends AbstractWidgetTypeHandler { 048 049 private static final long serialVersionUID = 1495841177711755669L; 050 051 @Override 052 public FaceletHandler getFaceletHandler(FaceletContext ctx, TagConfig tagConfig, Widget widget, 053 FaceletHandler[] subHandlers) throws WidgetException { 054 FaceletHandlerHelper helper = new FaceletHandlerHelper(ctx, tagConfig); 055 String mode = widget.getMode(); 056 String widgetId = widget.getId(); 057 String widgetName = widget.getName(); 058 String widgetTagConfigId = widget.getTagConfigId(); 059 TagAttributes attributes; 060 if (BuiltinWidgetModes.isLikePlainMode(mode)) { 061 // use attributes without id 062 attributes = helper.getTagAttributes(widget); 063 } else { 064 attributes = helper.getTagAttributes(widgetId, widget); 065 } 066 // add filename from field definition 067 FieldDefinition[] fields = widget.getFieldDefinitions(); 068 if (fields != null && fields.length > 1) { 069 FieldDefinition filenameField = fields[1]; 070 TagAttribute filenameAttr = helper.createAttribute("filename", 071 ValueExpressionHelper.createExpressionString(widget.getValueName(), filenameField)); 072 attributes = FaceletHandlerHelper.addTagAttribute(attributes, filenameAttr); 073 } 074 // file components do not support client behaviors => do not add input 075 // slot 076 boolean isEdit = BuiltinWidgetModes.EDIT.equals(mode); 077 FaceletHandler leaf = getNextHandler(ctx, tagConfig, widget, subHandlers, helper, false, isEdit); 078 if (isEdit) { 079 ComponentHandler input = helper.getHtmlComponentHandler(widgetTagConfigId, attributes, leaf, 080 UIInputFile.COMPONENT_TYPE, null); 081 String msgId = helper.generateMessageId(widgetName); 082 ComponentHandler message = helper.getMessageComponentHandler(widgetTagConfigId, msgId, widgetId, null); 083 FaceletHandler[] handlers = { input, message }; 084 return new CompositeFaceletHandler(handlers); 085 } else { 086 // TODO: handle PLAIN and PDF mode better? 087 ComponentHandler output = helper.getHtmlComponentHandler(widgetTagConfigId, attributes, leaf, 088 UIOutputFile.COMPONENT_TYPE, null); 089 if (BuiltinWidgetModes.PDF.equals(mode)) { 090 // add a surrounding p:html tag handler 091 return helper.getHtmlComponentHandler(widgetTagConfigId, new TagAttributesImpl(new TagAttribute[0]), 092 output, UIHtmlText.class.getName(), null); 093 } else { 094 return output; 095 } 096 } 097 } 098}