1 /* $Id: search.js,v 1.7 2007-01-08 11:13:07 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 make_pager (hits, offset, max) {
149 return '<a href="#" class="select">1</a> <a href="#">Next</a>';
153 function show_records()
155 if (xshow.readyState != 4)
158 var xml = xshow.responseXML;
159 var body = document.getElementById("body");
160 var hits = xml.getElementsByTagName("hit");
161 if (!hits[0]) // We should never get here with blocking operations
163 body.innerHTML = "No records yet";
164 searchtimer = setTimeout(check_search, 250);
169 var total = Number(xml.getElementsByTagName('total')[0].childNodes[0].nodeValue);
170 var merged = Number(xml.getElementsByTagName('merged')[0].childNodes[0].nodeValue);
171 var start = Number(xml.getElementsByTagName('start')[0].childNodes[0].nodeValue);
172 var num = Number(xml.getElementsByTagName('num')[0].childNodes[0].nodeValue);
173 var clients = Number(xml.getElementsByTagName("activeclients")[0].childNodes[0].nodeValue);
174 body.innerHTML = '<div class="pages">' +
175 make_pager(merged, start, 20) +
178 body.innerHTML += '<div class="results">Records : ' + (start + 1) +
179 ' to ' + (start + num) + ' of ' + merged +
180 ' (total hits: ' + total + ')</div><br/><br/>';
183 if (start + num < merged)
184 body.innerHTML += ' <a href="" ' +
185 'onclick="document.search.startrec.value=' + (start + recstoshow) +
186 ";update_action('page')" +
187 ';check_search(); update_history(); return false;">Next</a>';
190 body.innerHTML += ' <a href="" ' +
191 'onclick="document.search.startrec.value=' + (start - recstoshow) +
192 ";update_action('page')" +
193 ';check_search(); update_history();return false;">Previous</a>';
195 body.innerHTML += '<br/>';
197 body.innerHTML += '<div class="records">';
199 for (i = 0; i < hits.length; i++)
201 var mk = hits[i].getElementsByTagName("title");
202 var html = '<a href="#" class="record">';
206 field = mk[0].childNodes[0].nodeValue;
209 html += field + '</a>';
210 body.innerHTML += html;
213 body.innerHTML += '</div>';
218 searchtimer = setTimeout(check_search, 1000);
220 searchtimer = setTimeout(check_search, 2000);
224 termtimer = setTimeout(check_termlist, 500);
227 function check_search()
229 clearTimeout(searchtimer);
230 var url = "search.pz2?" +
232 "&start=" + document.search.startrec.value +
233 "&num=" + recstoshow +
234 "&session=" + session +
236 xshow = GetXmlHttpObject();
237 xshow.onreadystatechange=show_records;
238 xshow.open("GET", url);
243 function refine_query (obj) {
244 var query_cell = document.getElementById('query');
245 var term = obj.innerHTML;
247 term = term.replace(/[\(\)]/g, '');
248 if (cur_termlist == 'subject')
249 query_cell.value += ' and su=(' + term + ')';
250 else if (cur_termlist == 'author')
251 query_cell.value += ' and au=(' + term + ')';
257 function show_termlist()
259 if (xtermlist.readyState != 4)
263 var xml = xtermlist.responseXML;
264 var body = facet_list[cur_facet][1];
265 var hits = xml.getElementsByTagName("term");
267 Number(xml.getElementsByTagName("activeclients")[0].childNodes[0].nodeValue);
271 if (cur_facet >= facet_list.length)
276 termtimer = setTimeout(check_termlist, 500);
282 for (i = 0; i < hits.length; i++)
284 var namen = hits[i].getElementsByTagName("name");
286 body.innerHTML += '<a href="#" onclick="refine_query(this)">' +
287 namen[0].childNodes[0].nodeValue +
292 termtimer = setTimeout(check_termlist, 1000);
296 function check_termlist()
298 var facet_name = facet_list[cur_facet][0];
299 var url = "search.pz2?" +
301 "&session=" + session +
302 "&name=" + facet_name;
303 xtermlist = GetXmlHttpObject();
304 xtermlist.onreadystatechange=show_termlist;
305 xtermlist.open("GET", url);
306 xtermlist.send(null);
311 if (xstat.readyState != 4)
314 var xml = xstat.responseXML;
315 var body = document.getElementById("stat");
316 var nodes = xml.childNodes[0].childNodes;
318 Number(xml.getElementsByTagName("activeclients")[0].childNodes[0].nodeValue);
321 stattimer = setTimeout(check_stat, 500);
325 body.innerHTML = "(";
326 for (i = 0; i < nodes.length; i++)
328 if (nodes[i].nodeType != 1)
330 var value = nodes[i].childNodes[0].nodeValue;
333 var name = nodes[i].nodeName;
334 body.innerHTML += ' ' + name + '=' + value;
336 body.innerHTML += ')';
338 stattimer = setTimeout(check_stat, 2000);
342 function check_stat()
344 var url = "search.pz2?" +
346 "&session=" + session;
347 xstat = GetXmlHttpObject();
348 xstat.onreadystatechange=show_stat;
349 xstat.open("GET", url);
353 function search_started()
355 if (xsearch.readyState != 4)
357 var xml = xsearch.responseXML;
358 var error = xml.getElementsByTagName("error");
361 var msg = error[0].childNodes[0].nodeValue;
366 stattimer = setTimeout(check_stat, 1000);
369 function start_search()
371 clearTimeout(termtimer);
373 clearTimeout(searchtimer);
375 clearTimeout(stattimer);
377 clearTimeout(showtimer);
381 alert("Please load targets first");
384 var query = escape(document.getElementById('query').value);
385 var url = "search.pz2?" +
387 "&session=" + session +
389 xsearch = GetXmlHttpObject();
390 xsearch.onreadystatechange=search_started;
391 xsearch.open("GET", url);
393 // document.getElementById("termlist").innerHTML = '';
394 document.getElementById("body").innerHTML = '';
397 document.search.startrec.value = 0;
401 function session_encode ()
406 for (i = 0; i < session_cells.length; i++)
408 var name = session_cells[i];
409 var value = escape(document.getElementById(name).value);
410 session += '&' + name + '=' + value;
417 function session_restore (session)
419 var fields = session.split(/&/);
422 for (i = 1; i < fields.length; i++)
424 var pair = fields[i].split(/=/);
425 var key = pair.shift();
426 var value = pair.join('=');
427 var cell = document.getElementById(key);
435 function session_read ()
437 var ses = window.location.hash.replace(/^#/, '');
442 function session_store (new_value)
444 window.location.hash = '#' + new_value;
448 function update_history ()
450 var session = session_encode();
451 session_store(session);
452 old_session = session;
456 function session_check ()
458 var session = session_read();
459 var action = document.search.action_type.value;
461 clearInterval(url_surveillence);
463 if ( session != unescape(old_session) )
465 session_restore(session);
467 if (action == 'search') {
469 } else if (action == 'page') {
472 alert('Unregocnized action_type: ' + action);
477 url_surveillence = setInterval(session_check, 200);
481 function get_available_facets () {
482 var facet_container = document.getElementById('termlists');
483 var facet_cells = facet_container.childNodes;
484 var facets = Array();
487 for (i = 0; i < facet_cells.length; i++) {
488 var cell = facet_cells.item(i);
490 if (cell.className == 'facet') {
491 var facet_name = cell.id.replace(/^facet_([^_]+)_terms$/, "$1");
492 facets.push(Array(facet_name, cell));
500 function get_facet_container (obj) {
501 return document.getElementById(obj.id + '_terms');
505 function toggle_facet (obj) {
506 var container = get_facet_container(obj);
508 if (obj.className == 'selected') {
509 obj.className = 'unselected';
510 container.style.display = 'inline';
512 obj.className = 'selected';
513 container.style.display = 'none';