001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019 020 package org.apache.myfaces.tobago.component; 021 022 import org.apache.commons.fileupload.FileItem; 023 import static org.apache.myfaces.tobago.TobagoConstants.ATTR_ENCTYPE; 024 import static org.apache.myfaces.tobago.TobagoConstants.ATTR_TAB_INDEX; 025 import org.apache.myfaces.tobago.util.MessageFactory; 026 027 import javax.faces.application.FacesMessage; 028 import javax.faces.component.UIComponent; 029 import javax.faces.context.FacesContext; 030 import javax.faces.el.ValueBinding; 031 032 /* 033 * Date: 10.02.2006 034 * Time: 19:02:13 035 */ 036 public class UIFileInput extends javax.faces.component.UIInput { 037 public static final String COMPONENT_TYPE = "org.apache.myfaces.tobago.FileInput"; 038 039 private Integer tabIndex; 040 041 public void setParent(UIComponent uiComponent) { 042 super.setParent(uiComponent); 043 UIPage form = ComponentUtil.findPage(getFacesContext(), uiComponent); 044 if (form != null) { 045 form.getAttributes().put(ATTR_ENCTYPE, "multipart/form-data"); 046 } else { 047 FacesContext.getCurrentInstance().getExternalContext().getRequestMap().put(UIPage.ENCTYPE_KEY, 048 "multipart/form-data"); 049 } 050 } 051 052 public void validate(FacesContext facesContext) { 053 if (isRequired()) { 054 if (getSubmittedValue() instanceof FileItem) { 055 FileItem file = (FileItem) getSubmittedValue(); 056 if (file == null || file.getName().length() == 0) { 057 addErrorMessage(facesContext); 058 setValid(false); 059 } 060 } else { 061 addErrorMessage(facesContext); 062 setValid(false); 063 } 064 } 065 super.validate(facesContext); 066 } 067 068 private void addErrorMessage(FacesContext facesContext) { 069 FacesMessage facesMessage = MessageFactory.createFacesMessage( 070 facesContext, REQUIRED_MESSAGE_ID, FacesMessage.SEVERITY_ERROR); 071 facesContext.addMessage(getClientId(facesContext), facesMessage); 072 } 073 074 public void restoreState(FacesContext context, Object state) { 075 Object[] values = (Object[]) state; 076 super.restoreState(context, values[0]); 077 tabIndex = (Integer) values[1]; 078 } 079 080 public Object saveState(FacesContext context) { 081 Object[] values = new Object[2]; 082 values[0] = super.saveState(context); 083 values[1] = tabIndex; 084 return values; 085 } 086 087 public Integer getTabIndex() { 088 if (tabIndex != null) { 089 return tabIndex; 090 } 091 ValueBinding vb = getValueBinding(ATTR_TAB_INDEX); 092 if (vb != null) { 093 Number number = (Number) vb.getValue(getFacesContext()); 094 if (number != null) { 095 return Integer.valueOf(number.intValue()); 096 } 097 } 098 return null; 099 } 100 101 public void setTabIndex(Integer tabIndex) { 102 this.tabIndex = tabIndex; 103 } 104 }