source: gsdl/trunk/src/recpt/vlistbrowserclass.cpp@ 15810

Last change on this file since 15810 was 15810, checked in by mdewsnip, 16 years ago

(Adding dynamic classifiers) Added a bit of code into get_link_icon() to generate the correct URL for dynamic classifier nodes.
  • Property svn:keywords set to Author Date Id Revision
File size: 13.4 KB
Line 
1/**********************************************************************
2 *
3 * vlistbrowserclass.cpp --
4 * Copyright (C) 1999 The New Zealand Digital Library Project
5 *
6 * A component of the Greenstone digital library software
7 * from the New Zealand Digital Library Project at the
8 * University of Waikato, New Zealand.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 *
24 *********************************************************************/
25
26#include "vlistbrowserclass.h"
27#include "OIDtools.h"
28#include "browsetoolsclass.h"
29#include "cgiutils.h"
30
31
32vlistbrowserclass::vlistbrowserclass () {
33}
34
35vlistbrowserclass::~vlistbrowserclass () {
36}
37
38// returns the name that specifies the browserclass type
39text_t vlistbrowserclass::get_browser_name () {
40 return "VList";
41}
42
43browserclass* vlistbrowserclass::clone()
44{
45 vlistbrowserclass* browser = new vlistbrowserclass();
46 if (browser != NULL) {
47#ifdef GSDL_USE_BY_BOOK_MACROS
48 browser->m_oByBookMacros.Copy(m_oByBookMacros);
49#endif
50 }
51 return browser;
52}
53
54void vlistbrowserclass::load_metadata_defaults (text_tset &metadata) {
55 metadata.insert ("haschildren");
56 metadata.insert ("doctype");
57}
58
59text_t vlistbrowserclass::get_default_formatstring () {
60 return "<td valign=\"top\">[link][icon][/link]</td>"
61 "<td valign=\"top\">[srclink]{Or}{[thumbicon],[srcicon]}[/srclink]</td>"
62 "<td valign=\"top\">[highlight]{Or}{[dls.Title],[dc.Title],[Title],Untitled}[/highlight]"
63 "{If}{[Source],<br><i>([Source])</i>}</td>";
64}
65
66bool vlistbrowserclass::show_search_result_links(recptproto * collectproto,const text_t &collection,ostream& logout){
67 ColInfoResponse_t cinfo;
68 comerror_t err;
69 collectproto->get_collectinfo (collection, cinfo, err, logout);
70 bool show_links = false;
71
72 text_tmap::const_iterator format_here = cinfo.format.begin();
73 text_tmap::const_iterator format_end = cinfo.format.end();
74
75 while (format_here != format_end) {
76 if (((*format_here).first == "DocumentSearchResultLinks") &&
77 ((*format_here).second == "true")){
78 show_links = true;
79 break;
80 }
81 ++format_here;
82 }
83
84 return show_links;
85}
86
87int vlistbrowserclass::output_section_group(ResultDocInfo_t &section, cgiargsclass &args,
88 const text_t &collection, int colnumber,
89 format_t *formatlistptr, bool use_table,
90 text_tset &metadata, bool &getParents,
91 recptproto * collectproto, displayclass &disp,
92 outconvertclass &outconvert, ostream &textout,
93 ostream& logout)
94{
95 browsetoolsclass btools;
96 text_t link, icon;
97 text_t collink = collection;
98 bool show_links = show_search_result_links(collectproto,collection,logout);
99
100
101#ifndef DOCHANDLE
102 if (!collink.empty()) collink = "&amp;c=" + collink;
103#endif
104
105 get_link_icon (section, args, collink, link, icon, show_links);
106
107 //get_link_icon (section, args, collink, link, icon);
108
109 bool highlight = false;
110 if (!args["d"].empty()) {
111 if (args["d"] == section.OID) highlight = true;
112 } else
113 if (args["cl"] == section.OID) highlight = true;
114
115
116 /* use_table is set to true if the format string starts with <td> */
117 if (use_table || colnumber > 0) {
118 if (colnumber > 0 ){
119 textout << outconvert << "<table class=\"v_list\"><tr valign=\"top\">";
120 }
121 else{
122 textout << outconvert << "<table id=\"toc_top\" class=\"v_list\"><tr valign=\"top\">";
123 }
124
125 // get tab size
126 text_t tab; int itab;
127 disp.expandstring (displayclass::defaultpackage, "_tabwidth_", tab);
128 itab = tab.getint();
129 if (colnumber > 0) textout << outconvert << disp
130 << "<td><img alt=\"\" src=\"_httpimg_/space.gif\" width=\""
131 << (itab*colnumber) << "\"/></td>";
132 } else {
133 textout << outconvert << "<div class=\"v_list\">\n";
134 }
135
136 text_tmap options;
137 options["link"] = link;
138 options["icon"] = icon;
139 if (highlight) options["highlight"] = "1";
140 else options["highlight"] = "0";
141 options["DocImage"] = btools.get_cover_image();
142 textout << outconvert << disp
143 << get_formatted_string (collection, collectproto,
144 section, disp, formatlistptr,
145 options, logout);
146
147 if (use_table || colnumber > 0) {
148 textout << outconvert << "</tr></table>\n";
149 } else {
150 textout << outconvert << "</div>\n";
151 }
152
153 return 1;
154}
155
156int vlistbrowserclass::output_section_group(FilterResponse_t &sections, cgiargsclass &args,
157 const text_t &collection, int colnumber,
158 format_t *formatlistptr, bool use_table,
159 text_tset &/*metadata*/, bool &/*getParents*/,
160 recptproto * collectproto, displayclass &disp,
161 outconvertclass &outconvert, ostream &textout,
162 ostream& logout)
163{
164 browsetoolsclass btools;
165 text_t link, icon;
166 text_t &arg_d = args["d"];
167 text_t &arg_cl = args["cl"];
168
169 text_t collink = collection;
170 bool show_links = show_search_result_links(collectproto,collection,logout);
171
172#ifndef DOCHANDLE
173 if (!collink.empty()) collink = "&amp;c=" + collink;
174#endif
175
176 if (colnumber > 0) {
177 textout << outconvert << "<table><tr valign=\"top\">";
178 // get tab size
179 text_t tab; int itab;
180 disp.expandstring (displayclass::defaultpackage, "_tabwidth_", tab);
181 itab = tab.getint();
182 if (colnumber > 0) textout << outconvert << disp
183 << "<td><img alt=\"\" src=\"_httpimg_/space.gif\" width=\""
184 << (itab*colnumber) << "\"/></td>";
185 textout << outconvert << "<td>";
186 }
187
188 /* use table set to true if format string starts with <td> */
189 if (use_table) {
190 textout << outconvert << "<table class=\"v_list\">\n";
191 } else {
192 textout << outconvert << "<div class=\"v_list\">\n";
193 }
194
195 ResultDocInfo_tarray::iterator thissection = sections.docInfo.begin();
196 ResultDocInfo_tarray::iterator endsection = sections.docInfo.end();
197
198 // ** here lies Alan's hack to get 4 results per table row
199 int item = 0, perline; // set perline to 1 normally
200 text_t fstring;
201
202 text_tmap options;
203 options["link"] = link;
204 options["icon"] = icon;
205 options["highlight"] = "0";
206 options["DocImage"] = btools.get_cover_image();
207
208 if ( thissection != endsection ) { // only if there are results (else corrupts display)
209 fstring = get_formatted_string (collection, collectproto, *thissection,
210 disp, formatlistptr, options, logout);
211 // if format string
212 // has <td><t (e.g. <td><table>) then
213 // we assume it is an image and put it in 4 columns
214 if (fstring[5] == 't')
215 perline = 4;
216 else
217 perline = 1;
218 }
219
220 int count = 0;
221
222 while (thissection != endsection) {
223 ++item;
224 get_link_icon (*thissection, args, collink, link, icon,show_links);
225 //get_link_icon (*thissection, args, collink, link, icon);
226 bool highlight = false;
227 if (!arg_d.empty()) {
228 if (arg_d == (*thissection).OID) highlight = true;
229 } else
230 if (arg_cl == (*thissection).OID) highlight = true;
231
232 if ((item == 1 && use_table) || colnumber > 0 )
233 textout << outconvert << "<tr valign=top>\n";
234
235 options["link"] = link;
236 options["icon"] = icon;
237 if (highlight) options["highlight"] = "1";
238 else options["highlight"] = "0";
239 options["DocImage"] = btools.get_cover_image();
240
241 textout << outconvert << disp
242 << " " << get_formatted_string (collection, collectproto, *thissection, disp,
243 formatlistptr, options, logout);
244
245 if ((item >= perline && use_table) || colnumber > 0) {
246 textout << outconvert << "\n</tr>";
247 item = 0;
248 }
249 textout << outconvert << "\n";
250 ++thissection;
251 }
252
253 if (use_table)
254 textout << outconvert << "</table>\n";
255 else
256 textout << outconvert << "</div>\n";
257 if (colnumber > 0) textout << outconvert << "</td></tr></table>\n";
258
259 return 1;
260}
261
262
263// get_link_icon attempts to work out what type of icon should be displayed for
264// the given section and what it should link to.
265// [modification to allow default document detach settings -- kjdon]
266void vlistbrowserclass::get_link_icon (ResultDocInfo_t &section, cgiargsclass &args,
267 const text_t &collink, text_t &link, text_t &icon, bool showresultlinks) {
268
269
270
271#ifndef DOCHANDLE
272 link = "<a href=\"_httpdocument_" + collink;
273#else
274 link = "<a href=\"_httpdocumenthandle_(" + collink;
275#endif
276
277 text_t link_end = "\">";
278
279#ifndef DOCHANDLE
280 text_t detach_link_end = "&amp;x=1\" target=\\_blank>"; // to detach the link, and x=1 signifies it is a detached page
281#else
282 text_t detach_link_end = "\" target=\\_blank>"; // to detach the link, and x=1 signifies it is a detached page
283#endif
284
285 icon = "_document:icontext_";
286
287 text_t doctype;
288 int haschildren = 0;
289
290 if (section.metadata.count("haschildren")>0)
291 haschildren = section.metadata["haschildren"].values[0].getint();
292 if (section.metadata.count("doctype")>0)
293 doctype = section.metadata["doctype"].values[0];
294
295 text_t &arg_d = args["d"];
296 text_t &arg_cl = args["cl"];
297
298 if (args["a"] == "q")
299 {
300 // query results list
301#ifndef DOCHANDLE
302 int result_num = section.result_num;
303 int num_docs = args["nmd"].getint();
304 int srn = 0;
305 int srp = 0;
306 if (showresultlinks && result_num < num_docs) {
307 srn = result_num + 1;
308 }
309 if (showresultlinks && result_num > 1 ) {
310 srp = result_num - 1;
311 }
312
313 text_t srp_t = srp;
314 text_t srn_t = srn;
315 link +="&amp;srp="+srp_t;
316 link +="&amp;srn="+srn_t;
317 link +="&amp;cl=search&amp;d=" + section.OID;
318#else
319 link += "," + section.OID+")";
320#endif
321
322 if (args["xx"] == "1") {
323 link += detach_link_end;
324 }
325 else {
326 link += link_end;
327 }
328 if ((is_top (section.OID)) && (haschildren == 1)) icon = "_document:iconclosedbook_";
329 else if (haschildren == 1) icon = "_document:iconclosedfolder_";
330 }
331 else if (!arg_d.empty()) {
332 // we are in a document - none of the links should be detach links
333 if (is_top(section.OID)) {
334 // we link back to the originating page eg search page or classifier page
335 icon = "_document:iconopenbook_";
336 if (arg_cl == "search") {
337 link = "<a href=\"_httpquery_\">";
338 }
339 else {
340#ifndef DOCHANDLE
341 link += "&amp;cl=" + arg_cl + "\">";
342#else
343 link += ","+arg_cl + ")\">";
344#endif
345 }
346 }
347 else if (haschildren == 1) {
348 if ((args["gc"] == "1") ||
349 (is_child_of (section.OID, arg_d)) ||
350 (section.OID == arg_d)) {
351 icon = "_document:iconopenfolder_";
352#ifndef DOCHANDLE
353 link += "&amp;cl=" + arg_cl + "&amp;d=" + section.OID + ".pr\">";
354#else
355 link += ","+section.OID + ".pr)\">";
356#endif
357 }
358 else {
359 icon = "_document:iconclosedfolder_";
360#ifndef DOCHANDLE
361 link += "&amp;cl=" + arg_cl + "&amp;d=" + section.OID + "\">";
362#else
363 link += ","+section.OID + ")\">";
364#endif
365 }
366 }
367 else {
368 if (args["gt"] == "0") {
369#ifndef DOCHANDLE
370 link += "&amp;cl=" + arg_cl + "&amp;d=" + section.OID + "\">";
371#else
372 link += ","+section.OID + ")\">";
373#endif
374 }
375 else {
376#ifndef DOCHANDLE
377 link += "&amp;cl=" + arg_cl + "&amp;d=" + section.OID + "#" + section.OID + "\">";
378#else
379 link += ","+section.OID + "#" + section.OID + ")\">";
380#endif
381 }
382 }
383 }
384 else {
385 // classification level - links to docs may be detaching
386 if (haschildren == 1) {
387 if (doctype == "classify") {
388 if ((args["gc"] == "1") ||
389 (is_child_of (section.OID, arg_cl)) ||
390 (section.OID == arg_cl)) {
391 icon = "_document:iconopenbookshelf_";
392
393#ifndef DOCHANDLE
394 link += "&amp;cl=" + section.OID + ".pr\">";
395#else
396 link += ","+section.OID + ".pr)\">";
397#endif
398 }
399 else {
400 icon = "_document:iconclosedbookshelf_";
401
402#ifndef DOCHANDLE
403 if (args["a"] == "dc")
404 {
405 // This is a dynamic classifier node, and the node label is going into the URL, so make it CGI-safe
406 text_t classifier_node_cgi_safe = cgi_safe_utf8(section.OID);
407 link = "<a href=\"_gwcgi_?c=" + args["c"] + "&amp;a=dc&amp;dcl=" + args["dcl"] + "&amp;dcn=" + classifier_node_cgi_safe + "\">";
408 }
409 else
410 {
411 link += "&amp;cl=" + section.OID + "\">";
412 }
413#else
414 link += ","+section.OID + ")\">";
415#endif
416 }
417 }
418 else {
419 icon = "_document:iconclosedbook_";
420#ifndef DOCHANDLE
421 link += "&amp;cl=" + arg_cl + "&amp;d=" + section.OID;
422#else
423 link += ","+section.OID+")";
424#endif
425 if (args["xx"] == "1") {
426 link += detach_link_end;
427 }
428 else {
429 link += link_end;
430 }
431 }
432 }
433 else {
434 if (doctype == "classify") link = "";
435 else {
436#ifndef DOCHANDLE
437 link += "&amp;cl=" + arg_cl + "&amp;d=" + section.OID;
438#else
439 link += "," + section.OID +")";
440#endif
441 if (args["xx"] == "1") {
442 link += detach_link_end;
443 }
444 else {
445 link += link_end;
446 }
447 }
448 }
449 }
450}
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