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1 package fr.improve.struts.taglib.layout;
2
3 import javax.servlet.jsp.JspException  ;
4
5 import org.apache.commons.logging.Log;
6 import org.apache.commons.logging.LogFactory;
7
8 import fr.improve.struts.taglib.layout.event.EndLayoutEvent;
9 import fr.improve.struts.taglib.layout.event.LayoutEventListener;
10 import fr.improve.struts.taglib.layout.event.StartLayoutEvent;
11 import fr.improve.struts.taglib.layout.field.AbstractModeFieldTag;
12 import fr.improve.struts.taglib.layout.util.FormUtilsInterface;
13 import fr.improve.struts.taglib.layout.util.PanelInterface;
14 import fr.improve.struts.taglib.layout.util.TagUtils;
15
16
29 public class PanelTag extends LabelledTag implements LayoutEventListener {
30
33 private static Log LOG = LogFactory.getLog(PanelTag.class);
34
35 protected static PanelInterface defaultPanel = null;
36 protected PanelInterface panel = null;
37
38 protected int cols = 2;
39 protected String width;
40 protected String height;
41 protected String align = null; public final static String CENTER = "center";
43 public final static String LEFT = "left";
44 public final static String RIGHT = "rigth";
45
46 protected short editMode = 2;
48 protected short createMode = 2;
49 protected short inspectMode = 1;
50
51 protected short fieldDisplayMode;
52
53 protected String arg0Name;
55 protected String arg0Property;
56
57 protected String model;
58 protected String jspStyleClass;
59
60
61 protected void initDynamicValues() {
62 super.initDynamicValues();
63 jspStyleClass = styleClass;
64 if (styleClass==null){
65 styleClass = getSkin().getProperty("styleclass.panel",null);
66 }
67 }
68
69 protected void reset() {
70 styleClass = jspStyleClass;
71 jspStyleClass = null;
72 super.reset();
73 }
74
75
79 public Object processStartLayoutEvent(StartLayoutEvent in_event) throws JspException {
80 return in_event.consume(pageContext, "<tr>");
81 }
82 public Object processEndLayoutEvent(EndLayoutEvent in_event) throws JspException {
83 return in_event.consume(pageContext, "</tr>");
84 }
85
86 protected void computeDisplayMode() {
87 int formMode = getSkin().getFormUtils().getFormDisplayMode(pageContext);
88 switch (formMode) {
89 case FormUtilsInterface.CREATE_MODE :
90 fieldDisplayMode = createMode;
91 break;
92 case FormUtilsInterface.EDIT_MODE :
93 fieldDisplayMode = editMode;
94 break;
95 case FormUtilsInterface.INSPECT_MODE :
96 fieldDisplayMode = inspectMode;
97 break;
98 }
99 }
100
103 protected void doAfterBody(StringBuffer buffer) throws JspException {
104 panel.doAfterBody(buffer);
105 }
106
109 protected void doBeforeBody(StringBuffer buffer) throws JspException {
110 doBeforeBody(buffer, align);
111 }
112
116 protected void doBeforeBody(StringBuffer buffer, String align) throws JspException {
117 panel.doBeforeBody(buffer, align);
118 }
119
123 protected void doEndPanel(StringBuffer buffer) throws JspException {
124 panel.doEndPanel(buffer);
125 }
126 protected void doEndLayout() throws JspException {
127 new EndLayoutEvent(this, "</td>").send();
128 }
129 public int doEndLayoutTag() throws JspException {
130 if (fieldDisplayMode==AbstractModeFieldTag.MODE_NODISPLAY) return EVAL_PAGE;
131
132 StringBuffer buffer = new StringBuffer ();
133 doAfterBody(buffer);
134 doEndPanel(buffer);
135 TagUtils.write(pageContext, buffer.toString());
136 doEndLayout();
137 return EVAL_PAGE;
138 }
139
142 protected void doPrintBlankLine(StringBuffer buffer) throws JspException {
143 panel.doPrintBlankLine(buffer, cols);
144 }
145
150 protected void doPrintTitle(StringBuffer buffer) throws JspException {
151 String l_title = null;
152 if (arg0Name!=null) {
153 Object l_bean = pageContext.findAttribute(arg0Name);
154 if (l_bean!=null) {
155 Object l_value = fr.improve.struts.taglib.layout.util.LayoutUtils.getProperty(l_bean, arg0Property);
156 if (l_value!=null) arg0 = l_value.toString();
157 }
158 }
159 if (key==null && arg0!=null) l_title = arg0;
160 if (key!=null || name!=null) l_title = getLabel();
161 panel.doPrintTitle(buffer, l_title);
162 }
163
166 protected void doStartPanel(StringBuffer buffer) throws JspException {
167 doStartPanel(buffer, align);
168 }
169
174 protected void doStartPanel(StringBuffer buffer, String align) throws JspException {
175 init();
176 panel.init(pageContext, styleClass, this);
177 panel.doStartPanel(buffer, align, width);
178 }
179 protected void doStartLayout() throws JspException {
180 cols = getSkin().getFieldInterface().getColumnNumber();
181 new StartLayoutEvent(this, "<td valign=\"top\" colspan=\"" + cols + "\">").send();
182 }
183 public int doStartLayoutTag() throws JspException {
184 computeDisplayMode();
185 if (fieldDisplayMode==AbstractModeFieldTag.MODE_NODISPLAY) return SKIP_BODY;
186
187 doStartLayout();
188 StringBuffer buffer = new StringBuffer ();
189 doStartPanel(buffer);
190 doPrintTitle(buffer);
191 doBeforeBody(buffer);
192 TagUtils.write(pageContext,buffer.toString());
193 return EVAL_BODY_INCLUDE;
194 }
195
200 public java.lang.String getArg0Name() {
201 return arg0Name;
202 }
203
208 public java.lang.String getArg0Property() {
209 return arg0Property;
210 }
211 public PanelInterface getPanelInterface() {
212 return panel;
213 }
214 public void init() {
215 try {
216 defaultPanel = (PanelInterface) getSkin().getPanelClass(model).newInstance();
217 } catch (Exception e) {
218 LOG.error("Unable to instanciate model " + model,e);
219 defaultPanel = new fr.improve.struts.taglib.layout.util.BasicPanel();
220 }
221 panel = defaultPanel;
222 }
223 public void release() {
224 super.release();
225 cols = 2;
226 width= null;
227 height = null;
228 align ="center";
229 panel = defaultPanel;
230 model = null;
231
232 editMode = 2;
233 createMode = 2;
234 inspectMode = 1;
235 }
236
239 public void setAlign(String align) {
240 this.align = align;
241 }
242 public String getAlign() {
243 return align;
244 }
245
250 public void setArg0Name(java.lang.String newArg0Name) {
251 arg0Name = newArg0Name;
252 }
253
258 public void setArg0Property(java.lang.String newArg0Property) {
259 arg0Property = newArg0Property;
260 }
261
265 public void setCols(int cols) {
266 this.cols = cols;
267 }
268
272 public void setMode(String mode) throws JspException {
273 if (mode==null) return;
275 if (mode.length()!=5) throw new JspException ("fieldTag mode " + mode + " is invalid.");
276
277 char c = mode.charAt(0);
279 createMode = convertMode(c);
280
281 c = mode.charAt(2);
283 editMode = convertMode(c);
284
285 c = mode.charAt(4);
287 inspectMode = convertMode(c);
288 }
289
290
295 private short convertMode(char c) throws JspException {
296 short lc_mode;
297 switch(c) {
298 case 'N': lc_mode=0; break;
299 case 'E': lc_mode=2; break;
300 case 'I': lc_mode=1; break;
301 default: throw new JspException ("panelTag mode " + c + " is invalid. Valid mode are N, E and I");
302 }
303 return lc_mode;
304 }
305
306
310 public void setWidth(String width) {
311 if (!width.equals("0")) this.width = width;
312 else this.width=null;
313 }
314 public String getWidth() {
315 return width;
316 }
317
321 public String getHeight() {
322 return height;
323 }
324
325
329 public void setHeight(String height) {
330 this.height = height;
331 }
332
333
336 public String getModel() {
337 return model;
338 }
339
342 public void setModel(String model) {
343 this.model = model;
344 }
345 }
346 |
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