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 }