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Java > Open Source Codes > org > apache > beehive > netui > tags > rendering > InputFileTag


1 /*
2  * Copyright 2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *
16  * $Header:$
17  */
18 package org.apache.beehive.netui.tags.rendering;
19
20 import org.apache.beehive.netui.tags.html.HtmlConstants;
21
22 import java.util.HashMap JavaDoc;
23
24 /**
25  * Body, Start Tag: required, End tag: forbidden
26  * Required href
27  */
28 abstract public class InputFileTag extends TagHtmlBase implements HtmlConstants
29 {
30     public static void add(HashMap JavaDoc html, HashMap JavaDoc htmlQuirks, HashMap JavaDoc xhtml)
31     {
32         html.put(INPUT_FILE_TAG, new HtmlRendering());
33         htmlQuirks.put(INPUT_FILE_TAG, new HtmlRendering());
34         xhtml.put(INPUT_FILE_TAG, new XhtmlRendering());
35     }
36
37     public static class State extends AbstractHtmlControlState
38     {
39         public boolean readonly;
40
41         public void clear()
42         {
43             super.clear();
44
45             readonly = false;
46         }
47     }
48
49     public void doStartTag(AbstractRenderAppender sb, AbstractTagState renderState)
50     {
51         assert(sb != null) : "Parameter 'sb' must not be null";
52         assert(renderState != null) : "Parameter 'renderState' must not be null";
53         assert(renderState instanceof State) : "Paramater 'renderState' must be an instance of InputFileTag.State";
54
55         State state = (State) renderState;
56
57         // Generate an HTML element
58 renderTag(sb, INPUT);
59         renderAttribute(sb, TYPE, INPUT_FILE);
60         renderAttribute(sb, NAME, state.name);
61         renderAttribute(sb, ID, state.id);
62         renderAttribute(sb, CLASS, state.styleClass);
63         renderReadOnly(sb, state.readonly);
64
65         renderAttributes(AbstractHtmlState.ATTR_GENERAL, sb, state);
66         renderAttribute(sb, STYLE, state.style);
67         renderAttributes(AbstractHtmlState.ATTR_JAVASCRIPT, sb, state);
68         writeEnd(sb);
69     }
70
71     public void doEndTag(AbstractRenderAppender sb)
72     {
73     }
74
75     abstract protected void writeEnd(AbstractRenderAppender sb);
76
77     abstract protected void renderReadOnly(AbstractRenderAppender sb, boolean readonly);
78
79
80     private static class HtmlRendering extends InputFileTag
81     {
82         protected void writeEnd(AbstractRenderAppender sb)
83         {
84             sb.append(">");
85         }
86
87         protected void renderReadOnly(AbstractRenderAppender sb, boolean readonly)
88         {
89             if (readonly)
90                 sb.append(" readonly");
91
92         }
93     }
94
95     private static class XhtmlRendering extends InputFileTag
96     {
97         protected void writeEnd(AbstractRenderAppender sb)
98         {
99             sb.append(" />");
100         }
101
102         protected void renderReadOnly(AbstractRenderAppender sb, boolean readonly)
103         {
104             if (readonly)
105                 renderAttribute(sb, "readonly", "readonly");
106
107         }
108     }
109 }
110
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