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1
7 package fr.improve.struts.taglib.layout.collection;
8
9 import java.util.HashMap  ;
10 import java.util.Map ;
11
12 import javax.servlet.jsp.JspException ;
13 import javax.servlet.jsp.tagext.TagSupport ;
14
15 import fr.improve.struts.taglib.layout.util.LayoutUtils;
16 import fr.improve.struts.taglib.layout.util.TagUtils;
17
18
24 public class CollectionDetailTag extends TagSupport {
25 protected String name;
26 protected String property;
27 protected boolean skip = false;
28 protected BaseCollectionTag collectionTag;
29
30 protected static final String DETAIL_KEY = "fr.improve.struts.taglib.layout.collection.CollectionDetailTag.DETAIL_KEY";
31
32 public int doStartTag() throws JspException {
33 try {
34 collectionTag =
35 (BaseCollectionTag) findAncestorWithClass(this, BaseCollectionTag.class);
36 if (collectionTag.getId()==null) {
37 throw new JspException ("Invalid use of collectionDetail tag: parent collection tag attribute 'id' should be set");
38 }
39 if (collectionTag.getIndexId()==null) {
40 throw new JspException ("Invalid use of collectionDetail tag: parent collection tag attribute 'indexId' should be set");
41 }
42 if (collectionTag.isFirst()) {
43 return SKIP_BODY;
44 }
45 if (name!=null) {
46 if (!collectionTag.getSpans().containsKey(name)) {
47 skip = true;
48 return SKIP_BODY;
49 } else {
50 pageContext.setAttribute(CollectionItemTag.SPAN_KEY, collectionTag.getSpans().get(name));
51 }
52 }
53
54 } catch (ClassCastException e) {
55 throw new JspException ("Invalid use of collectionDetail tag");
56 } catch (NullPointerException e) {
57 throw new JspException ("Invalid use of collectionDetail tag");
58 }
59 return SKIP_BODY;
60 }
61
62 public int doEndTag() throws JspException {
63 if (collectionTag.isFirst()) {
64 Map lc_map = getDetailInfo();
65 if (!lc_map.containsKey(collectionTag.getId())) {
66 lc_map.put(collectionTag.getId(), new Integer (-1));
68
69 renderInit(collectionTag.getId());
71
72 String onover = collectionTag.getOnRowMouseOver();
74 String onout = collectionTag.getOnRowMouseOut();
75 collectionTag.setOnRowMouseOver("showDetail(" + collectionTag.getId() + ",${" + collectionTag.getIndexId() + "});" + onover);
76 collectionTag.setOnRowMouseOut("clearDetail(" + collectionTag.getId() + ");" + onout);
77 }
78 return EVAL_PAGE;
79 }
80 if (skip) {
81 skip = false;
82 collectionTag.incrementColumn();
83 return EVAL_PAGE;
84 }
85
86 Map lc_map = getDetailInfo();
87 Integer lc_int = (Integer ) lc_map.get(collectionTag.getId());
88 if (lc_int.intValue()< collectionTag.getIndex()) {
89 lc_map.put(collectionTag.getId(), new Integer (collectionTag.getIndex()));
90 renderNext(collectionTag.getId(), collectionTag.getIndex());
91 }
92
93 Object lc_value = buildContent();
94 renderDetail(collectionTag.getId(), property, collectionTag.getIndex(), lc_value==null ? "" : lc_value.toString());
95
96 reset();
97 return EVAL_PAGE;
98 }
99
100 private Map getDetailInfo() {
101 Map lc_map = (Map ) pageContext.getAttribute(DETAIL_KEY);
102 if (lc_map==null) {
103 lc_map = new HashMap ();
104 pageContext.setAttribute(DETAIL_KEY, lc_map);
105 }
106 return lc_map;
107 }
108
109
112 protected Object buildContent() throws JspException {
113 Object lc_cell = null;
114 if (name == null) {
115 lc_cell = collectionTag.getBean();
117 } else {
118 lc_cell = pageContext.findAttribute(name);
120 }
121 if (lc_cell != null && property != null) {
122 lc_cell = getPropertyValue(lc_cell, property);
124 }
125 return lc_cell;
126 }
127
128
132 protected Object getPropertyValue(Object in_bean, String in_property) throws JspException {
133 return LayoutUtils.getProperty(in_bean, in_property);
134 }
135
136
142 protected void renderDetail(String in_name, String in_property, int in_index, String in_value) throws JspException {
143 TagUtils.write(pageContext, "<script>");
144 TagUtils.write(pageContext, in_name);
145 TagUtils.write(pageContext, "[");
146 TagUtils.write(pageContext, String.valueOf(in_index));
147 TagUtils.write(pageContext, "]['");
148 TagUtils.write(pageContext, in_property);
149 TagUtils.write(pageContext, "'] = \"");
150 TagUtils.write(pageContext, filterDoubleQuotes(in_value));
151 TagUtils.write(pageContext, "\"; ");
152 TagUtils.write(pageContext, "</script>\n");
153 }
154
155
158 protected String filterDoubleQuotes(String in_value) {
159 StringBuffer sb = new StringBuffer (in_value.length());
160 int i =0;
161 char c;
162 for (i = 0; i < in_value.length(); i++) {
163 c = in_value.charAt(i);
164 if (c=='"') {
165 sb.append('\"');
166 } else {
167 sb.append(c);
168 }
169 }
170 return sb.toString();
171 }
172
173
174
177 public void renderInit(String in_name) throws JspException {
178 TagUtils.write(pageContext, "<script>var ");
179 TagUtils.write(pageContext, in_name);
180 TagUtils.write(pageContext, " = new Array();");
181 TagUtils.write(pageContext, "</script>\n");
182 }
183
184 public void renderNext(String in_name, int in_index) throws JspException {
185 TagUtils.write(pageContext, "<script>");
186 TagUtils.write(pageContext, in_name);
187 TagUtils.write(pageContext, "[");
188 TagUtils.write(pageContext, String.valueOf(in_index));
189 TagUtils.write(pageContext, "] = new Object();");
190 TagUtils.write(pageContext, "</script>\n");
191 }
192
193 protected void reset() {
194 collectionTag = null;
195 skip = false;
196 }
197
198 public void release() {
199 property = null;
200 }
201
204 public String getName() {
205 return name;
206 }
207
210 public void setName(String name) {
211 this.name = name;
212 }
213
216 public String getProperty() {
217 return property;
218 }
219
222 public void setProperty(String property) {
223 this.property = property;
224 }
225 }
226 |
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