source: gsdl/trunk/src/recpt/hlistbrowserclass.cpp@ 16060

Last change on this file since 16060 was 16060, checked in by mdewsnip, 12 years ago

(Adding dynamic classifiers) Fix to code for identifying the selected node (for dynamic classifiers).

  • Property svn:executable set to *
  • Property svn:keywords set to Author Date Id Revision
File size: 6.8 KB
Line 
1/**********************************************************************
2 *
3 * hlistbrowserclass.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 "hlistbrowserclass.h"
27#include "OIDtools.h"
28#include "recptprototools.h"
29#include "cgiutils.h"
30
31
32hlistbrowserclass::hlistbrowserclass () {
33}
34
35hlistbrowserclass::~hlistbrowserclass () {
36}
37
38// returns the name that specifies the browserclass type
39text_t hlistbrowserclass::get_browser_name () {
40 return "HList";
41}
42
43browserclass* hlistbrowserclass::clone()
44{
45 return new hlistbrowserclass();
46}
47
48void hlistbrowserclass::load_metadata_defaults (text_tset &metadata) {
49 metadata.insert ("doctype");
50}
51
52text_t hlistbrowserclass::get_default_formatstring () {
53 return "[link][highlight][Title][/highlight][/link]";
54}
55
56// need to change OID to it's child
57void hlistbrowserclass::processOID (cgiargsclass &args, recptproto *collectproto,
58 ostream &logout) {
59
60 text_t OID = args["d"];
61 bool is_classify = false;
62 if (OID.empty()) {
63 is_classify = true;
64 OID = args["cl"];
65 }
66
67 FilterResponse_t response;
68 text_tset metadata;
69 metadata.insert ("childtype");
70 text_t classifytype = "Invisible";
71 text_tarray OIDs;
72
73 while (classifytype == "Invisible" || classifytype == "HList") {
74 OIDs.erase (OIDs.begin(), OIDs.end());
75
76 OIDs.push_back (OID);
77 OIDs.push_back (OID + ".fc");
78
79 get_info (OIDs, args["c"], args["l"], metadata, false, collectproto, response, logout);
80
81 // Avoid infinite loops in strange situations by checking that the OID has changed
82 if (response.docInfo[1].OID == OID) {
83 break;
84 }
85 OID = response.docInfo[1].OID;
86 classifytype = response.docInfo[1].metadata["childtype"].values[0];
87 }
88 if (is_classify) args["cl"] = OID;
89 else args["d"] = OID;
90}
91
92int hlistbrowserclass::output_section_group (ResultDocInfo_t &section, cgiargsclass &args,
93 const text_t& collection, int colnumber,
94 format_t *formatlistptr, bool use_table,
95 text_tset &metadata, bool &getParents,
96 recptproto *collectproto, displayclass &disp,
97 outconvertclass &outconvert, ostream &textout,
98 ostream &logout)
99{
100 // expanded contents are going to cause some nasty recursions
101 // so we'll only continue if being passed the current section
102 if ((args["gc"] == 1) && (section.OID != args["d"])) return 0;
103
104 // get all siblings
105 FilterResponse_t response;
106 get_children (section.OID + ".pr", args["c"], args["l"], metadata, getParents,
107 collectproto, response, logout);
108
109 return output_section_group (response, args, collection, colnumber, formatlistptr, use_table, metadata, getParents, collectproto, disp, outconvert, textout, logout);
110}
111
112int hlistbrowserclass::output_section_group (FilterResponse_t &response, cgiargsclass &args,
113 const text_t &collection, int colnumber,
114 format_t * formatlistptr, bool use_table,
115 text_tset &metadata, bool &getParents,
116 recptproto * collectproto, displayclass &disp,
117 outconvertclass &outconvert, ostream &textout,
118 ostream &logout)
119{
120 /* use_table is set to true if the format string starts with <td> */
121 if (use_table || colnumber > 0) {
122 textout << outconvert << "<table><tr><td>";
123 // get tab size
124 text_t tab; int itab;
125 disp.expandstring (displayclass::defaultpackage, "_tabwidth_", tab);
126 itab = tab.getint();
127 if (colnumber > 0) textout << outconvert << disp
128 << "<img alt=\"\" src=\"_httpimg_/space.gif\" width=\""
129 << (itab*colnumber) << "\"/>";
130 textout << outconvert << "</td>\n";
131 }
132
133 if (use_table)
134 textout << outconvert << "<table class=\"h_list\"><tr>\n";
135 else
136 textout << outconvert << "<div class=\"h_list\">\n";
137
138 ResultDocInfo_tarray::iterator tsibling = response.docInfo.begin();
139 ResultDocInfo_tarray::iterator esibling = response.docInfo.end();
140
141 text_t icon, link;
142
143 while (tsibling != esibling)
144 {
145 get_link_icon (*tsibling, args, link, icon);
146
147 bool highlight = false;
148 if ((*tsibling).OID == args["cl"] || is_child_of ((*tsibling).OID, args["cl"]) ||
149 (*tsibling).OID == args["dcn"] || starts_with (args["dcn"], (*tsibling).OID))
150 {
151 link.clear();
152 highlight = true;
153 }
154
155 text_tmap options;
156 options["link"] = link;
157 options["icon"] = icon;
158 if (highlight) options["highlight"] = "1";
159 else options["highlight"] = "0";
160
161 text_t fmt_str=get_formatted_string (collection, collectproto,
162 *tsibling, disp, formatlistptr,
163 options, logout);
164
165 text_t span_class = "h_item";
166 if (highlight) {
167 // the current option
168 span_class += " h_item_current";
169 }
170
171 textout << outconvert << "<span class=\""<<span_class<<"\">" << disp << fmt_str << "</span>\n";
172 ++tsibling;
173 }
174
175 if (use_table)
176 textout << outconvert << "</tr></table>\n";
177 else
178 textout << outconvert << "</div>\n";
179
180 if (use_table || colnumber > 0) textout << outconvert << "</tr></table>\n";
181
182 return 0;
183}
184
185
186void hlistbrowserclass::get_link_icon (ResultDocInfo_t &section, cgiargsclass &args, text_t &link, text_t &icon)
187{
188 link = "<a href=\"_httpdocument_";
189
190 text_t &doctype = section.metadata["doctype"].values[0];
191 if (doctype == "classify")
192 {
193 // Dynamic classifier nodes
194 if (args["a"] == "dc")
195 {
196 // The node label is going into the URL, so make it CGI-safe
197 text_t classifier_node_dcn_cgi_safe = cgi_safe_utf8(section.OID);
198 link = "<a href=\"_gwcgi_?c=" + args["c"] + "&amp;a=dc&amp;dcl=" + args["dcl"] + "&amp;dcn=" + classifier_node_dcn_cgi_safe + "\">";
199 }
200 // Static classifier nodes
201 else
202 {
203 link += "&amp;cl=" + section.OID + "\">";
204 }
205 }
206 else
207 {
208 link += "&amp;cl=" + args["cl"] + "&amp;d=" + section.OID;
209
210 // [modification to allow default document detach settings -- kjdon]
211 if (args["xx"] == "1")
212 {
213 // documents should be detached
214 link += "&amp;x=1\" target=\"_blank\">";
215 }
216 else
217 {
218 link += "\">";
219 }
220 }
221}
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