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