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1
7 package fr.improve.struts.taglib.layout.datagrid;
8
9 import java.util.Iterator  ;
10 import java.util.Map ;
11
12 import javax.servlet.jsp.JspException ;
13
14 import org.apache.struts.util.ResponseUtils;
15
16 import fr.improve.struts.taglib.layout.collection.CollectionTag;
17 import fr.improve.struts.taglib.layout.collection.ItemContext;
18 import fr.improve.struts.taglib.layout.util.IDatagridRenderer;
19 import fr.improve.struts.taglib.layout.util.LayoutUtils;
20 import fr.improve.struts.taglib.layout.util.TagUtils;
21
22
27 public class DatagridTag extends CollectionTag {
28 public static final String LOADED = "fr.improve.struts.taglib.layout.datagrid.DatagridTag.LOADED";
29
30 protected String jspOnRowClick;
31 protected String jspStyleId;
32 protected DatagridImpl datagrid;
33 protected StringBuffer initCode = new StringBuffer (1000);
34
35 protected boolean allowSelection = true;
36 protected boolean allowMultipleSelection = true;
37
38 public int doStartLayoutTag() throws JspException {
39 loadScript();
40
41 jspOnRowClick = onRowClick;
43 if (allowSelection) {
44 onRowClick = "strutsLayoutDatagridData['" + property + "'].selectDatagridLine(this)";
45 }
46
47 jspStyleId = styleId;
49 if (styleId==null) {
50 styleId = property + "JsId";
51 }
52
53 datagrid = LayoutUtils.getDatagrid(pageContext, name, property);
55
56 int ret = super.doStartLayoutTag();
58
59 checkRenderer();
61 IDatagridRenderer lc_renderer = (IDatagridRenderer) panel;
62 TagUtils.write(pageContext, "<script>strutsLayoutDatagridData['");
63 TagUtils.write(pageContext, property);
64 TagUtils.write(pageContext, "'] = new StrutsLayout.Datagrid('");
65 TagUtils.write(pageContext, property);
66 TagUtils.write(pageContext, "', '");
67 TagUtils.write(pageContext, styleId);
68 TagUtils.write(pageContext, "', '");
69 TagUtils.write(pageContext, lc_renderer.getRowStyleClass());
70 TagUtils.write(pageContext, "', '");
71 TagUtils.write(pageContext, lc_renderer.getRowStyleClass2());
72 TagUtils.write(pageContext, "', ");
73 TagUtils.write(pageContext, String.valueOf(allowSelection));
74 TagUtils.write(pageContext, ", ");
75 TagUtils.write(pageContext, String.valueOf(allowMultipleSelection));
76 TagUtils.write(pageContext, ");\n");
77
78 Iterator lc_it = lc_renderer.getRowStyleClassMap().entrySet().iterator();
80 while (lc_it.hasNext()) {
81 Map.Entry lc_entry = (Map.Entry ) lc_it.next();
82 TagUtils.write(pageContext, "strutsLayoutDatagridData['");
83 TagUtils.write(pageContext, property);
84 TagUtils.write(pageContext, "'].addStyleClass('");
85 TagUtils.write(pageContext, lc_entry.getKey().toString());
86 TagUtils.write(pageContext, "', '");
87 TagUtils.write(pageContext, lc_entry.getValue().toString());
88 TagUtils.write(pageContext,"');");
89 TagUtils.write(pageContext, "\n");
90 }
91 TagUtils.write(pageContext, "</script>\n");
92
93 return ret;
94 }
95
96
99 private void checkRenderer() throws JspException {
100 if (!(panel instanceof IDatagridRenderer)) {
101 throw new JspException ("Bad use of <layout:datagrid> : the renderer " + panel.getClass().getName() + " does not implement IDatagridRenderer. Please use the model attribute and/or configure Struts-Layout properly");
102 }
103
104 }
105
106
109 protected void loadScript() throws JspException {
110 if (pageContext.getRequest().getAttribute(LOADED)==null) {
111 TagUtils.write(pageContext, "<script SRC=\"");
112 TagUtils.write(pageContext, LayoutUtils.getSkin(pageContext.getSession()).getConfigDirectory(pageContext.getRequest()));
113 TagUtils.write(pageContext, "/datagrid.js\"></script>");
114 pageContext.getRequest().setAttribute(LOADED, "");
115 }
116 }
117
118 public void reset() {
119 super.reset();
120 onRowClick = jspOnRowClick;
121 styleId = jspStyleId;
122 datagrid = null;
123 }
124
125
128 public void addItem(StringBuffer in_buffer, ItemContext in_context) throws JspException {
129
130 if (isFirst()) {
131 defineColumn(in_context.getProperty(), ((DatagridItemContext)in_context).getColumnType());
132 } else if (getColumn()==0) {
133 renderLineState();
134 }
135 super.addItem(in_buffer, in_context);
136 }
137
138
141 protected void defineColumn(String in_property, ColumnType in_type) throws JspException {
142 IDatagridRenderer lc_renderer = (IDatagridRenderer) panel;
143 TagUtils.write(pageContext, "<script>");
144 TagUtils.write(pageContext, "strutsLayoutDatagridData['");
145 TagUtils.write(pageContext, property);
146 TagUtils.write(pageContext, "'].addColumn('");
147 TagUtils.write(pageContext, in_property);
148 TagUtils.write(pageContext, "', '");
149 TagUtils.write(pageContext, lc_renderer.getColumnStyleClass(getColumn()));
150 TagUtils.write(pageContext, "', '");
151 TagUtils.write(pageContext, in_type.getType());
152 TagUtils.write(pageContext, "'");
153 if (ColumnType.SELECT.equals(in_type.getType())) {
154 TagUtils.write(pageContext,", [");
155 Iterator it = in_type.getValues().iterator();
156 while (it.hasNext()) {
157 DatagridSelectTag.DatagridChoice choice = (DatagridSelectTag.DatagridChoice) it.next();
158 TagUtils.write(pageContext, "new StrutsLayout.Option('");
159 TagUtils.write(pageContext, ResponseUtils.filter(choice.label));
160 TagUtils.write(pageContext, "','");
161 TagUtils.write(pageContext, choice.value);
162 TagUtils.write(pageContext, "')");
163 if (it.hasNext()) {
164 TagUtils.write(pageContext, ",");
165 }
166 }
167 TagUtils.write(pageContext, "]");
168 } else if (ColumnType.EMPTY.equals(in_type.getType())) {
169 TagUtils.write(pageContext,", '");
170 TagUtils.write(pageContext,in_type.getJavascript());
171 TagUtils.write(pageContext,"'");
172 }
173 TagUtils.write(pageContext,");");
174 TagUtils.write(pageContext, "</script>\n");
175
176 if (ColumnType.CHECKBOX.equals(in_type)) {
177 datagrid.addBooleanProperty(in_property);
179 }
180 }
181
182 public int doEndLayoutTag() throws JspException {
183 int lc_ret = super.doEndLayoutTag();
184 TagUtils.write(pageContext, "<script>\n");
185 TagUtils.write(pageContext, initCode.toString());
186 TagUtils.write(pageContext, "</script>\n");
187 initCode.setLength(0);
188 return lc_ret;
189 }
190
191 protected void renderLineState() {
192 String lc_state = datagrid.getObjectState(getIndex());
193 initCode.append("strutsLayoutDatagridData['");
194 initCode.append(property);
195 initCode.append("'].initState(");
196 initCode.append(getIndex());
197 initCode.append(",'");
198 initCode.append(lc_state);
199 initCode.append("');\n");
200 }
201
202 public void release() {
203 super.release();
204 allowSelection = true;
205 allowMultipleSelection = true;
206 }
207
208 public void setSelectionAllowed(boolean in_allowSelection) {
209 allowSelection = in_allowSelection;
210 }
211 public boolean isSelectionAllowed() {
212 return allowSelection;
213 }
214 public void setMultipleSelectionAllowed(boolean in_multipleSelectionAllowed) {
215 allowMultipleSelection = in_multipleSelectionAllowed;
216 }
217 public boolean isMultipleSelectionAllowed() {
218 return allowMultipleSelection;
219 }
220 }
221 |
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