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1
28
29 package org.opencms.workplace.comparison;
30
31 import com.alkacon.diff.Diff;
32
33 import org.opencms.jsp.CmsJspActionElement;
34 import org.opencms.util.CmsStringUtil;
35 import org.opencms.workplace.CmsDialog;
36 import org.opencms.workplace.CmsWorkplace;
37 import org.opencms.workplace.CmsWorkplaceSettings;
38 import org.opencms.workplace.list.A_CmsListDialog;
39 import org.opencms.workplace.tools.A_CmsHtmlIconButton;
40 import org.opencms.workplace.tools.CmsHtmlIconButtonStyleEnum;
41
42 import java.io.BufferedReader  ;
43 import java.io.IOException ;
44 import java.io.StringReader ;
45
46 import javax.servlet.http.HttpServletRequest ;
47 import javax.servlet.jsp.JspException ;
48 import javax.servlet.jsp.JspWriter ;
49
50
60 public abstract class A_CmsDiffViewDialog extends CmsDialog {
61
62
63 private CmsDiffViewMode m_mode;
64
65
70 protected A_CmsDiffViewDialog(CmsJspActionElement jsp) {
71
72 super(jsp);
73 setParamStyle(STYLE_NEW);
74 }
75
76
81 public void displayDialog() throws Exception {
82
83 if (getAction() == ACTION_CANCEL) {
84 actionCloseDialog();
85 }
86 JspWriter out = getJsp().getJspContext().getOut();
87 out.print("<link rel='stylesheet' type='text/css' HREF='");
88 out.print(getStyleUri(getJsp()));
89 out.println("diff.css'>");
90 out.println(dialogContentStart(getParamTitle()));
91 out.print("<form name='diff-form' method='post' action='");
92 out.print(getDialogUri());
93 out.println("'>");
94 out.println(allParamsAsHidden());
95 out.println("</form>");
96 out.println("<p>");
98 out.println(getDiffOnlyButtonsHtml());
99 out.println("</p>");
100 out.println(dialogBlockStart(null));
101 out.println("<table cellspacing='0' cellpadding='0' class='xmlTable'>\n<tr><td><pre style='overflow:auto'>");
102 try {
103 CmsHtmlDifferenceConfiguration conf = new CmsHtmlDifferenceConfiguration(
104 getMode() == CmsDiffViewMode.ALL ? -1 : getLinesBeforeSkip(),
105 getLocale());
106 String diff = Diff.diffAsHtml(getOriginalSource(), getCopySource(), conf);
107 if (CmsStringUtil.isNotEmpty(diff)) {
108 out.println(diff);
109 } else {
110 out.println(wrapLinesWithUnchangedStyle(CmsStringUtil.substitute(CmsStringUtil.escapeHtml(getOriginalSource()), "<br/>", "")));
112 }
113 } catch (Exception e) {
114 out.print(e);
115 }
116 out.println("</pre></td></tr>\n</table>");
117 out.println(dialogBlockEnd());
118 out.println(dialogContentEnd());
119 out.println(dialogEnd());
120 out.println(bodyEnd());
121 out.println(htmlEnd());
122 }
123
124
129 String getDiffOnlyButtonsHtml() {
130
131 StringBuffer result = new StringBuffer ();
132 if (!getOriginalSource().equals(getCopySource())) {
133 String onClick1 = "javascript:document.forms['diff-form'].mode.value = '";
134 String onClick2 = "javascript:document.forms['diff-form'].mode.value = '";
135 onClick1 += CmsDiffViewMode.ALL;
136 onClick2 += CmsDiffViewMode.DIFF_ONLY;
137 onClick1 += "'; document.forms['diff-form'].submit();";
138 onClick2 += "'; document.forms['diff-form'].submit();";
139 result.append(getTwoButtonsHtml(CmsDiffViewMode.DIFF_ONLY.getName().key(getLocale()),
140 CmsDiffViewMode.ALL.getName().key(getLocale()), onClick1, onClick2,
141 getMode() == CmsDiffViewMode.DIFF_ONLY));
142 } else {
143 setMode(CmsDiffViewMode.ALL);
145 }
146 return result.toString();
147 }
148
149
160 public String getTwoButtonsHtml(String label1, String label2, String onClick1, String onClick2, boolean firstActive) {
161 StringBuffer result = new StringBuffer ();
162 if (firstActive) {
163 result.append(A_CmsHtmlIconButton.defaultButtonHtml(
164 getJsp(),
165 CmsHtmlIconButtonStyleEnum.SMALL_ICON_TEXT,
166 "id",
167 label1,
168 null,
169 true,
170 A_CmsListDialog.ICON_DETAILS_SHOW,
171 null,
172 onClick1));
173 result.append(" ");
174 result.append(deactivatedEmphasizedButtonHtml(
175 label2,
176 A_CmsListDialog.ICON_DETAILS_HIDE));
177 } else {
178
179 result.append(deactivatedEmphasizedButtonHtml(
180 label1,
181 A_CmsListDialog.ICON_DETAILS_HIDE));
182 result.append(" ");
183 result.append(A_CmsHtmlIconButton.defaultButtonHtml(
184 getJsp(),
185 CmsHtmlIconButtonStyleEnum.SMALL_ICON_TEXT,
186 "id",
187 label2,
188 null,
189 true,
190 A_CmsListDialog.ICON_DETAILS_SHOW,
191 null,
192 onClick2));
193 }
194 result.append(" ");
195 return result.toString();
196 }
197
198
206 public String deactivatedEmphasizedButtonHtml(String name, String iconPath) {
207
208 StringBuffer result = new StringBuffer ();
209 result.append("<span style='vertical-align:middle;'><img style='width:20px;height:20px;display:inline;vertical-align:middle;text-decoration:none;' SRC=\'");
210 result.append(CmsWorkplace.getSkinUri());
211 result.append(iconPath);
212 result.append("\' alt=\'");
213 result.append(name);
214 result.append("\' title=\'");
215 result.append(name);
216 result.append("\'> <b>");
217 result.append(name);
218 result.append("</b></span>");
219 return result.toString();
220 }
221
222
227 public CmsDiffViewMode getMode() {
228
229 return m_mode;
230 }
231
232
237 public String getParamMode() {
238
239 if (m_mode == null) {
240 return null;
241 }
242 return m_mode.getMode();
243 }
244
245
250 public void setMode(CmsDiffViewMode mode) {
251
252 m_mode = mode;
253 }
254
255
260 public void setParamMode(String mode) {
261
262 m_mode = CmsDiffViewMode.valueOf(mode);
263 }
264
265
270 protected abstract String getCopySource();
271
272
277 protected abstract int getLinesBeforeSkip();
278
279
284 protected abstract String getOriginalSource();
285
286
289 protected void initWorkplaceRequestValues(CmsWorkplaceSettings settings, HttpServletRequest request) {
290
291 super.initWorkplaceRequestValues(settings, request);
292 if (CmsStringUtil.isEmptyOrWhitespaceOnly(getParamMode())) {
293 m_mode = CmsDiffViewMode.DIFF_ONLY;
295 }
296 try {
298 validateParamaters();
299 } catch (Exception e) {
300 setAction(ACTION_CANCEL);
302 try {
303 actionCloseDialog();
304 } catch (JspException e1) {
305 }
307 return;
308 }
309 }
310
311
316 protected abstract void validateParamaters() throws Exception ;
317
318
326 protected String wrapLinesWithUnchangedStyle(String diff) throws IOException {
327
328 String line;
329 StringBuffer result = new StringBuffer ();
330 BufferedReader br = new BufferedReader (new StringReader (diff));
331 while ((line = br.readLine()) != null) {
332 if ("".equals(line.trim())) {
333 line = " ";
334 }
335 result.append("<div class=\"df-unc\"><span class=\"df-unc\">").append(line).append("</span></div>\n");
336 }
337 return result.toString();
338 }
339
340 } |
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