1 /* $Id: search.js,v 1.4 2007-01-05 13:45:35 sondberg Exp $
2 * ---------------------------------------------------
14 var targetsloaded = false;
20 var session_cells = Array('query', 'startrec', 'action_type');
21 var old_session = session_read();
27 function initialize ()
29 facet_list = get_available_facets();
35 function GetXmlHttpObject()
38 if (window.XMLHttpRequest)
40 objXMLHttp=new XMLHttpRequest()
42 else if (window.ActiveXObject)
44 objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
49 function SendXmlHttpObject(obj, url, handler)
51 obj.onreadystatechange=handler;
56 function session_started()
58 if (xinitSession.readyState != 4)
60 var xml = xinitSession.responseXML;
61 var sesid = xml.getElementsByTagName("session")[0].childNodes[0].nodeValue;
62 document.getElementById("status").innerHTML = "Live";
64 setTimeout(ping_session, 50000);
67 function start_session()
69 xinitSession = GetXmlHttpObject();
70 var url="search.pz2?";
71 url += "command=init";
72 xinitSession.onreadystatechange=session_started;
73 xinitSession.open("GET", url);
74 xinitSession.send(null);
76 //url_surveillence = setInterval(session_check, 200);
79 function ping_session()
83 var url = "search.pz2?command=ping&session=" + session;
84 SendXmlHttpObject(xpingSession = GetXmlHttpObject(), url, session_pinged);
87 function session_pinged()
89 if (xpingSession.readyState != 4)
91 var xml = xpingSession.responseXML;
92 var error = xml.getElementsByTagName("error");
95 var msg = error[0].childNodes[0].nodeValue;
100 setTimeout(ping_session, 50000);
103 function targets_loaded()
105 if (xloadTargets.readyState != 4)
107 var xml = xloadTargets.responseXML;
108 var error = xml.getElementsByTagName("error");
111 var msg = error[0].childNodes[0].nodeValue;
115 document.getElementById("targetstatus").innerHTML = "Targets loaded";
118 function load_targets()
120 var fn = document.getElementById("targetfilename").value;
121 clearTimeout(termtimer);
122 clearTimeout(searchtimer);
123 clearTimeout(stattimer);
124 clearTimeout(showtimer);
125 document.getElementById("stat").innerHTML = "";
128 alert("Please enter a target definition file name");
131 var url="search.pz2?" +
133 "&session=" + session +
135 document.getElementById("targetstatus").innerHTML = "Loading targets...";
136 xloadTargets = GetXmlHttpObject();
137 xloadTargets.onreadystatechange=targets_loaded;
138 xloadTargets.open("GET", url);
139 xloadTargets.send(null);
143 function update_action (new_action) {
144 document.search.action_type.value = new_action;
148 function show_records()
150 if (xshow.readyState != 4)
153 var xml = xshow.responseXML;
154 var body = document.getElementById("body");
155 var hits = xml.getElementsByTagName("hit");
156 if (!hits[0]) // We should never get here with blocking operations
158 body.innerHTML = "No records yet";
159 searchtimer = setTimeout(check_search, 250);
164 var total = Number(xml.getElementsByTagName('total')[0].childNodes[0].nodeValue);
165 var merged = Number(xml.getElementsByTagName('merged')[0].childNodes[0].nodeValue);
166 var start = Number(xml.getElementsByTagName('start')[0].childNodes[0].nodeValue);
167 var num = Number(xml.getElementsByTagName('num')[0].childNodes[0].nodeValue);
168 var clients = Number(xml.getElementsByTagName("activeclients")[0].childNodes[0].nodeValue);
169 body.innerHTML = '<b>Records : ';
170 body.innerHTML += (start + 1) + ' to ' + (start + num) +
171 ' of ' + merged + ' (total hits: ' + total + ')</b>';
173 if (start + num < merged)
174 body.innerHTML += ' <a href="" ' +
175 'onclick="document.search.startrec.value=' + (start + recstoshow) +
176 ";update_action('page')" +
177 ';check_search(); update_history(); return false;">Next</a>';
180 body.innerHTML += ' <a href="" ' +
181 'onclick="document.search.startrec.value=' + (start - recstoshow) +
182 ";update_action('page')" +
183 ';check_search(); update_history();return false;">Previous</a>';
185 body.innerHTML += '<br/>';
186 for (i = 0; i < hits.length; i++)
188 body.innerHTML += '<p>';
189 body.innerHTML += (i + start + 1) + ': ';
190 var mk = hits[i].getElementsByTagName("title");
192 body.innerHTML += mk[0].childNodes[0].nodeValue;
193 body.innerHTML += '</p>';
199 searchtimer = setTimeout(check_search, 1000);
201 searchtimer = setTimeout(check_search, 2000);
205 termtimer = setTimeout(check_termlist, 500);
208 function check_search()
210 clearTimeout(searchtimer);
211 var url = "search.pz2?" +
213 "&start=" + document.search.startrec.value +
214 "&num=" + recstoshow +
215 "&session=" + session +
217 xshow = GetXmlHttpObject();
218 xshow.onreadystatechange=show_records;
219 xshow.open("GET", url);
224 function refine_query (obj) {
225 var query_cell = document.getElementById('query');
226 var term = obj.innerHTML;
228 term = term.replace(/[\(\)]/g, '');
229 if (cur_termlist == 'subject')
230 query_cell.value += ' and su=(' + term + ')';
231 else if (cur_termlist == 'author')
232 query_cell.value += ' and au=(' + term + ')';
238 function show_termlist()
240 if (xtermlist.readyState != 4)
244 var xml = xtermlist.responseXML;
245 var body = facet_list[cur_facet][1];
246 var hits = xml.getElementsByTagName("term");
248 Number(xml.getElementsByTagName("activeclients")[0].childNodes[0].nodeValue);
252 if (cur_facet >= facet_list.length)
257 termtimer = setTimeout(check_termlist, 500);
263 for (i = 0; i < hits.length; i++)
265 var namen = hits[i].getElementsByTagName("name");
267 body.innerHTML += '<a href="#" onclick="refine_query(this)">' +
268 namen[0].childNodes[0].nodeValue +
273 termtimer = setTimeout(check_termlist, 1000);
277 function check_termlist()
279 var facet_name = facet_list[cur_facet][0];
280 var url = "search.pz2?" +
282 "&session=" + session +
283 "&name=" + facet_name;
284 xtermlist = GetXmlHttpObject();
285 xtermlist.onreadystatechange=show_termlist;
286 xtermlist.open("GET", url);
287 xtermlist.send(null);
292 if (xstat.readyState != 4)
295 var xml = xstat.responseXML;
296 var body = document.getElementById("stat");
297 var nodes = xml.childNodes[0].childNodes;
299 Number(xml.getElementsByTagName("activeclients")[0].childNodes[0].nodeValue);
302 stattimer = setTimeout(check_stat, 500);
306 body.innerHTML = "(";
307 for (i = 0; i < nodes.length; i++)
309 if (nodes[i].nodeType != 1)
311 var value = nodes[i].childNodes[0].nodeValue;
314 var name = nodes[i].nodeName;
315 body.innerHTML += ' ' + name + '=' + value;
317 body.innerHTML += ')';
319 stattimer = setTimeout(check_stat, 2000);
323 function check_stat()
325 var url = "search.pz2?" +
327 "&session=" + session;
328 xstat = GetXmlHttpObject();
329 xstat.onreadystatechange=show_stat;
330 xstat.open("GET", url);
334 function search_started()
336 if (xsearch.readyState != 4)
338 var xml = xsearch.responseXML;
339 var error = xml.getElementsByTagName("error");
342 var msg = error[0].childNodes[0].nodeValue;
347 stattimer = setTimeout(check_stat, 1000);
350 function start_search()
352 clearTimeout(termtimer);
354 clearTimeout(searchtimer);
356 clearTimeout(stattimer);
358 clearTimeout(showtimer);
362 alert("Please load targets first");
365 var query = escape(document.getElementById('query').value);
366 var url = "search.pz2?" +
368 "&session=" + session +
370 xsearch = GetXmlHttpObject();
371 xsearch.onreadystatechange=search_started;
372 xsearch.open("GET", url);
374 // document.getElementById("termlist").innerHTML = '';
375 document.getElementById("body").innerHTML = '';
378 document.search.startrec.value = 0;
382 function session_encode ()
387 for (i = 0; i < session_cells.length; i++)
389 var name = session_cells[i];
390 var value = escape(document.getElementById(name).value);
391 session += '&' + name + '=' + value;
398 function session_restore (session)
400 var fields = session.split(/&/);
403 for (i = 1; i < fields.length; i++)
405 var pair = fields[i].split(/=/);
406 var key = pair.shift();
407 var value = pair.join('=');
408 var cell = document.getElementById(key);
416 function session_read ()
418 var ses = window.location.hash.replace(/^#/, '');
423 function session_store (new_value)
425 window.location.hash = '#' + new_value;
429 function update_history ()
431 var session = session_encode();
432 session_store(session);
433 old_session = session;
437 function session_check ()
439 var session = session_read();
440 var action = document.search.action_type.value;
442 clearInterval(url_surveillence);
444 if ( session != unescape(old_session) )
446 session_restore(session);
448 if (action == 'search') {
450 } else if (action == 'page') {
453 alert('Unregocnized action_type: ' + action);
458 url_surveillence = setInterval(session_check, 200);
462 function get_available_facets () {
463 var facet_container = document.getElementById('termlists');
464 var facet_cells = facet_container.childNodes;
465 var facets = Array();
468 for (i = 0; i < facet_cells.length; i++) {
469 var cell = facet_cells.item(i);
471 if (cell.className == 'facet') {
472 var facet_name = cell.id.replace(/^facet_([^_]+)_terms$/, "$1");
473 facets.push(Array(facet_name, cell));
481 function get_facet_container (obj) {
482 return document.getElementById(obj.id + '_terms');
486 function toggle_facet (obj) {
487 var container = get_facet_container(obj);
489 if (obj.className == 'selected') {
490 obj.className = 'unselected';
491 container.style.display = 'block';
493 obj.className = 'selected';
494 container.style.display = 'none';