001/* 002 * (C) Copyright 2006-2007 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * <a href="mailto:at@nuxeo.com">Anahide Tchertchian</a> 018 * 019 * $Id: FileWidgetTypeHandler.java 30416 2008-02-21 19:10:37Z atchertchian $ 020 */ 021 022package org.nuxeo.ecm.platform.forms.layout.facelets.plugins; 023 024import java.io.IOException; 025 026import javax.faces.component.UIComponent; 027import javax.faces.view.facelets.ComponentHandler; 028import javax.faces.view.facelets.CompositeFaceletHandler; 029import javax.faces.view.facelets.FaceletContext; 030import javax.faces.view.facelets.FaceletHandler; 031import javax.faces.view.facelets.TagAttribute; 032import javax.faces.view.facelets.TagAttributes; 033import javax.faces.view.facelets.TagConfig; 034 035import org.nuxeo.ecm.platform.forms.layout.api.BuiltinWidgetModes; 036import org.nuxeo.ecm.platform.forms.layout.api.FieldDefinition; 037import org.nuxeo.ecm.platform.forms.layout.api.Widget; 038import org.nuxeo.ecm.platform.forms.layout.api.exceptions.WidgetException; 039import org.nuxeo.ecm.platform.forms.layout.facelets.FaceletHandlerHelper; 040import org.nuxeo.ecm.platform.forms.layout.facelets.ValueExpressionHelper; 041import org.nuxeo.ecm.platform.ui.web.component.file.UIInputFile; 042import org.nuxeo.ecm.platform.ui.web.component.file.UIOutputFile; 043import org.nuxeo.ecm.platform.ui.web.component.seam.UIHtmlText; 044 045import com.sun.faces.facelets.tag.TagAttributesImpl; 046 047/** 048 * File widget. 049 * 050 * @author <a href="mailto:at@nuxeo.com">Anahide Tchertchian</a> 051 */ 052public class FileWidgetTypeHandler extends AbstractWidgetTypeHandler { 053 054 public FileWidgetTypeHandler(TagConfig config) { 055 super(config); 056 } 057 058 @Override 059 public void apply(FaceletContext ctx, UIComponent parent, Widget widget) throws WidgetException, IOException { 060 FaceletHandlerHelper helper = new FaceletHandlerHelper(tagConfig); 061 String mode = widget.getMode(); 062 String widgetId = widget.getId(); 063 String widgetName = widget.getName(); 064 String widgetTagConfigId = widget.getTagConfigId(); 065 TagAttributes attributes; 066 if (BuiltinWidgetModes.isLikePlainMode(mode)) { 067 // use attributes without id 068 attributes = helper.getTagAttributes(widget); 069 } else { 070 attributes = helper.getTagAttributes(widgetId, widget); 071 } 072 // add filename from field definition 073 FieldDefinition[] fields = widget.getFieldDefinitions(); 074 if (fields != null && fields.length > 1) { 075 FieldDefinition filenameField = fields[1]; 076 TagAttribute filenameAttr = helper.createAttribute("filename", 077 ValueExpressionHelper.createExpressionString(widget.getValueName(), filenameField)); 078 attributes = FaceletHandlerHelper.addTagAttribute(attributes, filenameAttr); 079 } 080 // file components do not support client behaviors => do not add input 081 // slot 082 boolean isEdit = BuiltinWidgetModes.EDIT.equals(mode); 083 FaceletHandler leaf = getNextHandler(ctx, tagConfig, widget, null, helper, false, isEdit); 084 if (isEdit) { 085 ComponentHandler input = helper.getHtmlComponentHandler(widgetTagConfigId, attributes, leaf, 086 UIInputFile.COMPONENT_TYPE, null); 087 String msgId = FaceletHandlerHelper.generateMessageId(ctx, widgetName); 088 ComponentHandler message = helper.getMessageComponentHandler(widgetTagConfigId, msgId, widgetId, null); 089 FaceletHandler[] handlers = { input, message }; 090 FaceletHandler h = new CompositeFaceletHandler(handlers); 091 h.apply(ctx, parent); 092 } else { 093 // TODO: handle PLAIN and PDF mode better? 094 ComponentHandler output = helper.getHtmlComponentHandler(widgetTagConfigId, attributes, leaf, 095 UIOutputFile.COMPONENT_TYPE, null); 096 if (BuiltinWidgetModes.PDF.equals(mode)) { 097 // add a surrounding p:html tag handler 098 FaceletHandler h = helper.getHtmlComponentHandler(widgetTagConfigId, new TagAttributesImpl( 099 new TagAttribute[0]), output, UIHtmlText.class.getName(), null); 100 h.apply(ctx, parent); 101 } else { 102 output.apply(ctx, parent); 103 } 104 } 105 } 106}