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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  
20  package org.apache.myfaces.tobago.internal.component;
21  
22  import org.apache.myfaces.tobago.component.SupportFieldId;
23  import org.apache.myfaces.tobago.component.SupportsLabelLayout;
24  import org.apache.myfaces.tobago.component.Visual;
25  import org.apache.myfaces.tobago.util.ComponentUtils;
26  import org.apache.myfaces.tobago.util.MessageUtils;
27  
28  import javax.faces.application.FacesMessage;
29  import javax.faces.component.UIInput;
30  import javax.faces.component.behavior.ClientBehaviorHolder;
31  import javax.faces.context.FacesContext;
32  import javax.servlet.http.Part;
33  import java.util.Arrays;
34  import java.util.Collection;
35  
36  public abstract class AbstractUIFile extends UIInput implements SupportsLabelLayout, Visual, ClientBehaviorHolder,
37          SupportFieldId {
38  
39    // todo generate
40    private static final Collection<String> EVENT_NAMES = Arrays.asList("change");
41  
42    // todo generate
43    @Override
44    public String getDefaultEventName() {
45      return "change";
46    }
47  
48    // todo generate
49    @Override
50    public Collection<String> getEventNames() {
51      return EVENT_NAMES;
52    }
53  
54    @Override
55    public void validate(final FacesContext facesContext) {
56      if (isRequired()) {
57        if (getSubmittedValue() instanceof Part) {
58          final Part file = (Part) getSubmittedValue();
59          if (file == null || file.getName().length() == 0) {
60            addErrorMessage(facesContext);
61            setValid(false);
62          }
63        } else {
64          addErrorMessage(facesContext);
65          setValid(false);
66        }
67      }
68      super.validate(facesContext);
69    }
70  
71    private void addErrorMessage(final FacesContext facesContext) {
72      MessageUtils.addMessage(
73          facesContext, this, FacesMessage.SEVERITY_ERROR, REQUIRED_MESSAGE_ID, new Object[]{getId()});
74    }
75  
76    public abstract boolean isDisabled();
77  
78    public abstract boolean isReadonly();
79  
80    public abstract boolean isMultiple();
81  
82    public abstract Integer getTabIndex();
83  
84    @Override
85    public String getFieldId(final FacesContext facesContext) {
86      return getClientId(facesContext) + ComponentUtils.SUB_SEPARATOR + "real";
87    }
88  }