|
1 package fr.improve.struts.taglib.layout;
2
3 import javax.servlet.jsp.JspException  ;
4 import javax.servlet.jsp.PageContext ;
5
6 import org.apache.struts.taglib.html.Constants;
7 import org.apache.struts.util.ResponseUtils;
8
9 import fr.improve.struts.taglib.layout.el.Expression;
10 import fr.improve.struts.taglib.layout.event.EndLayoutEvent;
11 import fr.improve.struts.taglib.layout.event.StartLayoutEvent;
12 import fr.improve.struts.taglib.layout.formatter.FormatException;
13 import fr.improve.struts.taglib.layout.util.LayoutUtils;
14 import fr.improve.struts.taglib.layout.util.NestedHelper;
15 import fr.improve.struts.taglib.layout.util.ParentFinder;
16 import fr.improve.struts.taglib.layout.util.TagUtils;
17
18
23 public class WriteTag extends org.apache.struts.taglib.bean.WriteTag implements LayoutTag {
24 protected String type;
25 protected String styleClass;
26 protected String style;
27 protected boolean layout = true;
28
29 protected String jspProperty;
30 protected String jspName;
31
32 protected static Class [] parameters = { PageContext .class, Object .class };
33
34 public WriteTag() {
35 super();
36 name = Constants.BEAN_KEY;
37 }
38
39 public void setLayout(boolean in_b) {
40 layout = in_b;
41 }
42
43 public boolean isLayout() {
44 return layout;
45 }
46 public String getStyle() {
47 return style;
48 }
49
50 public void setStyle(String in_style) {
51 this.style = in_style;
52 }
53
54 public String getStyleClass() {
55 return styleClass;
56 }
57
58 public void setStyleClass(String in_styleClass) {
59 this.styleClass = in_styleClass;
60 }
61
62 public final int doStartTag() throws JspException {
63 jspProperty = property;
65 property = Expression.evaluate(property, pageContext); property = NestedHelper.getAdjustedProperty(property, pageContext);
68 jspName = name;
70 name = Expression.evaluate(name, pageContext);
71
72 ParentFinder.registerTag(pageContext, this);
74
75 return doStartLayoutTag();
77 }
78
79 public final int doEndTag() throws JspException {
80 try {
81 return doEndLayoutTag();
83 } finally {
84 ParentFinder.deregisterTag(pageContext);
86
87 property = jspProperty;
89 jspProperty = null;
90 name = jspName;
91 jspName = null;
92 }
93 }
94
95 public int doEndLayoutTag() throws JspException {
96 return super.doEndTag();
97 }
98
99
104 public int doStartLayoutTag() throws JspException {
105 doStartLayout();
106
107 String lc_value = write(pageContext, name, property, type, scope);
108 if (filter) {
109 TagUtils.write(pageContext, ResponseUtils.filter(lc_value));
110 } else {
111 TagUtils.write(pageContext, lc_value);
112 }
113
114 doEndLayout();
115 return (SKIP_BODY);
117 }
118
122 private void doStartLayout() throws JspException {
123 if (layout) {
124 StringBuffer lc_buffer = new StringBuffer ("<th");
125 if (styleClass!=null) {
126 lc_buffer.append(" class=\"");
127 lc_buffer.append(styleClass);
128 lc_buffer.append("\"");
129 }
130 if (style!=null) {
131 lc_buffer.append(" style=\"");
132 lc_buffer.append(style);
133 lc_buffer.append("\"");
134 }
135
136 lc_buffer.append(" colspan=\"");
137 lc_buffer.append(LayoutUtils.getSkin(pageContext.getSession()).getFieldInterface().getColumnNumber());
138 lc_buffer.append("\">");
139 new StartLayoutEvent(this, lc_buffer.toString()).send();
140 }
141 }
142
143
147 private void doEndLayout() throws JspException {
148 if (layout) {
149 new EndLayoutEvent(this,"</th>").send();
150 }
151 }
152 public void release() {
153 super.release();
154 this.type = null;
155 this.style = null;
156 this.styleClass = null;
157 this.name = Constants.BEAN_KEY;
158 layout = true;
159 }
160 public void setType(String in_type) {
161 this.type = in_type;
162 }
163 public static String write(PageContext pageContext, Object value, String type) throws JspException {
164 if (value == null) {
165 return ""; }
167 if (type==null || type.length()==0) return value.toString();
168
169 String lc_formattedValue = null;
171 try {
172 lc_formattedValue = LayoutUtils.getSkin(pageContext.getSession()).getFormatter().format(value, type, pageContext);
173 } catch (FormatException fe) {
174 throw new JspException ("Format " + type + " failed (" + fe.getMessage() + ")");
175 }
176 return (lc_formattedValue == null ? "" : lc_formattedValue);
177 }
178 public static String write(PageContext pageContext, Object bean, String property, String type) throws JspException {
179 Object value = null;
181 try {
182 value = fr.improve.struts.taglib.layout.util.LayoutUtils.getProperty(bean, property);
183 } catch (JspException e) {
184 return ""; }
186 return write(pageContext, value, type);
187 }
188 public static String write(PageContext pageContext, String name, String property, String type, String scope) throws JspException {
189 Object bean = pageContext.findAttribute(name);
190 return write(pageContext, bean, property, type);
191 }
192
193 public PageContext getPageContext() {
194 return pageContext;
195 }
196
197 }
198 |
Popular Tags |
Java API By Example, From Geeks To Geeks.