1 /* $Id: search.js,v 1.6 2007-01-05 14:56:05 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");
203 body.innerHTML += '<a href="#" class="record">';
206 var field = mk[0].childNodes[0].nodeValue;
208 body.innerHTML += field + '</a>';
211 body.innerHTML += '</div>';
216 searchtimer = setTimeout(check_search, 1000);
218 searchtimer = setTimeout(check_search, 2000);
222 termtimer = setTimeout(check_termlist, 500);
225 function check_search()
227 clearTimeout(searchtimer);
228 var url = "search.pz2?" +
230 "&start=" + document.search.startrec.value +
231 "&num=" + recstoshow +
232 "&session=" + session +
234 xshow = GetXmlHttpObject();
235 xshow.onreadystatechange=show_records;
236 xshow.open("GET", url);
241 function refine_query (obj) {
242 var query_cell = document.getElementById('query');
243 var term = obj.innerHTML;
245 term = term.replace(/[\(\)]/g, '');
246 if (cur_termlist == 'subject')
247 query_cell.value += ' and su=(' + term + ')';
248 else if (cur_termlist == 'author')
249 query_cell.value += ' and au=(' + term + ')';
255 function show_termlist()
257 if (xtermlist.readyState != 4)
261 var xml = xtermlist.responseXML;
262 var body = facet_list[cur_facet][1];
263 var hits = xml.getElementsByTagName("term");
265 Number(xml.getElementsByTagName("activeclients")[0].childNodes[0].nodeValue);
269 if (cur_facet >= facet_list.length)
274 termtimer = setTimeout(check_termlist, 500);
280 for (i = 0; i < hits.length; i++)
282 var namen = hits[i].getElementsByTagName("name");
284 body.innerHTML += '<a href="#" onclick="refine_query(this)">' +
285 namen[0].childNodes[0].nodeValue +
290 termtimer = setTimeout(check_termlist, 1000);
294 function check_termlist()
296 var facet_name = facet_list[cur_facet][0];
297 var url = "search.pz2?" +
299 "&session=" + session +
300 "&name=" + facet_name;
301 xtermlist = GetXmlHttpObject();
302 xtermlist.onreadystatechange=show_termlist;
303 xtermlist.open("GET", url);
304 xtermlist.send(null);
309 if (xstat.readyState != 4)
312 var xml = xstat.responseXML;
313 var body = document.getElementById("stat");
314 var nodes = xml.childNodes[0].childNodes;
316 Number(xml.getElementsByTagName("activeclients")[0].childNodes[0].nodeValue);
319 stattimer = setTimeout(check_stat, 500);
323 body.innerHTML = "(";
324 for (i = 0; i < nodes.length; i++)
326 if (nodes[i].nodeType != 1)
328 var value = nodes[i].childNodes[0].nodeValue;
331 var name = nodes[i].nodeName;
332 body.innerHTML += ' ' + name + '=' + value;
334 body.innerHTML += ')';
336 stattimer = setTimeout(check_stat, 2000);
340 function check_stat()
342 var url = "search.pz2?" +
344 "&session=" + session;
345 xstat = GetXmlHttpObject();
346 xstat.onreadystatechange=show_stat;
347 xstat.open("GET", url);
351 function search_started()
353 if (xsearch.readyState != 4)
355 var xml = xsearch.responseXML;
356 var error = xml.getElementsByTagName("error");
359 var msg = error[0].childNodes[0].nodeValue;
364 stattimer = setTimeout(check_stat, 1000);
367 function start_search()
369 clearTimeout(termtimer);
371 clearTimeout(searchtimer);
373 clearTimeout(stattimer);
375 clearTimeout(showtimer);
379 alert("Please load targets first");
382 var query = escape(document.getElementById('query').value);
383 var url = "search.pz2?" +
385 "&session=" + session +
387 xsearch = GetXmlHttpObject();
388 xsearch.onreadystatechange=search_started;
389 xsearch.open("GET", url);
391 // document.getElementById("termlist").innerHTML = '';
392 document.getElementById("body").innerHTML = '';
395 document.search.startrec.value = 0;
399 function session_encode ()
404 for (i = 0; i < session_cells.length; i++)
406 var name = session_cells[i];
407 var value = escape(document.getElementById(name).value);
408 session += '&' + name + '=' + value;
415 function session_restore (session)
417 var fields = session.split(/&/);
420 for (i = 1; i < fields.length; i++)
422 var pair = fields[i].split(/=/);
423 var key = pair.shift();
424 var value = pair.join('=');
425 var cell = document.getElementById(key);
433 function session_read ()
435 var ses = window.location.hash.replace(/^#/, '');
440 function session_store (new_value)
442 window.location.hash = '#' + new_value;
446 function update_history ()
448 var session = session_encode();
449 session_store(session);
450 old_session = session;
454 function session_check ()
456 var session = session_read();
457 var action = document.search.action_type.value;
459 clearInterval(url_surveillence);
461 if ( session != unescape(old_session) )
463 session_restore(session);
465 if (action == 'search') {
467 } else if (action == 'page') {
470 alert('Unregocnized action_type: ' + action);
475 url_surveillence = setInterval(session_check, 200);
479 function get_available_facets () {
480 var facet_container = document.getElementById('termlists');
481 var facet_cells = facet_container.childNodes;
482 var facets = Array();
485 for (i = 0; i < facet_cells.length; i++) {
486 var cell = facet_cells.item(i);
488 if (cell.className == 'facet') {
489 var facet_name = cell.id.replace(/^facet_([^_]+)_terms$/, "$1");
490 facets.push(Array(facet_name, cell));
498 function get_facet_container (obj) {
499 return document.getElementById(obj.id + '_terms');
503 function toggle_facet (obj) {
504 var container = get_facet_container(obj);
506 if (obj.className == 'selected') {
507 obj.className = 'unselected';
508 container.style.display = 'inline';
510 obj.className = 'selected';
511 container.style.display = 'none';