--- /dev/null
+/* $Id: search.js,v 1.1 2007-01-05 11:30:13 sondberg Exp $
+ * ---------------------------------------------------
+ * Javascript container
+ */
+
+var xmlHttp
+var xinitSession;
+var xloadTargets;
+var xsearch;
+var xshow;
+var xstat;
+var xtermlist;
+var session = false;
+var targetsloaded = false;
+var shown;
+var searchtimer;
+var showtimer;
+var termtimer;
+var stattimer;
+var session_cells = Array('query', 'startrec', 'action_type');
+var old_session = session_read();
+var url_surveillence;
+var recstoshow = 15;
+var cur_termlist = "subject";
+
+function initialize ()
+{
+ start_session();
+ session_check();
+}
+
+
+function GetXmlHttpObject()
+{
+ var objXMLHttp=null
+ if (window.XMLHttpRequest)
+ {
+ objXMLHttp=new XMLHttpRequest()
+ }
+ else if (window.ActiveXObject)
+ {
+ objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
+ }
+ return objXMLHttp
+}
+
+function SendXmlHttpObject(obj, url, handler)
+{
+ obj.onreadystatechange=handler;
+ obj.open("GET", url);
+ obj.send(null);
+}
+
+function session_started()
+{
+ if (xinitSession.readyState != 4)
+ return;
+ var xml = xinitSession.responseXML;
+ var sesid = xml.getElementsByTagName("session")[0].childNodes[0].nodeValue;
+ document.getElementById("status").innerHTML = "Live";
+ session = sesid;
+ setTimeout(ping_session, 50000);
+}
+
+function start_session()
+{
+ xinitSession = GetXmlHttpObject();
+ var url="search.pz2?";
+ url += "command=init";
+ xinitSession.onreadystatechange=session_started;
+ xinitSession.open("GET", url);
+ xinitSession.send(null);
+
+ //url_surveillence = setInterval(session_check, 200);
+}
+
+function ping_session()
+{
+ if (!session)
+ return;
+ var url = "search.pz2?command=ping&session=" + session;
+ SendXmlHttpObject(xpingSession = GetXmlHttpObject(), url, session_pinged);
+}
+
+function session_pinged()
+{
+ if (xpingSession.readyState != 4)
+ return;
+ var xml = xpingSession.responseXML;
+ var error = xml.getElementsByTagName("error");
+ if (error[0])
+ {
+ var msg = error[0].childNodes[0].nodeValue;
+ alert(msg);
+ location = "?";
+ return;
+ }
+ setTimeout(ping_session, 50000);
+}
+
+function targets_loaded()
+{
+ if (xloadTargets.readyState != 4)
+ return;
+ var xml = xloadTargets.responseXML;
+ var error = xml.getElementsByTagName("error");
+ if (error[0])
+ {
+ var msg = error[0].childNodes[0].nodeValue;
+ alert(msg);
+ return;
+ }
+ document.getElementById("targetstatus").innerHTML = "Targets loaded";
+}
+
+function load_targets()
+{
+ var fn = document.getElementById("targetfilename").value;
+ clearTimeout(termtimer);
+ clearTimeout(searchtimer);
+ clearTimeout(stattimer);
+ clearTimeout(showtimer);
+ document.getElementById("stat").innerHTML = "";
+ if (!fn)
+ {
+ alert("Please enter a target definition file name");
+ return;
+ }
+ var url="search.pz2?" +
+ "command=load" +
+ "&session=" + session +
+ "&name=" + fn;
+ document.getElementById("targetstatus").innerHTML = "Loading targets...";
+ xloadTargets = GetXmlHttpObject();
+ xloadTargets.onreadystatechange=targets_loaded;
+ xloadTargets.open("GET", url);
+ xloadTargets.send(null);
+}
+
+
+function update_action (new_action) {
+ document.search.action_type.value = new_action;
+}
+
+
+function show_records()
+{
+ if (xshow.readyState != 4)
+ return;
+ var i;
+ var xml = xshow.responseXML;
+ var body = document.getElementById("body");
+ var hits = xml.getElementsByTagName("hit");
+ if (!hits[0]) // We should never get here with blocking operations
+ {
+ body.innerHTML = "No records yet";
+ searchtimer = setTimeout(check_search, 250);
+ }
+ else
+ {
+
+ var total = Number(xml.getElementsByTagName('total')[0].childNodes[0].nodeValue);
+ var merged = Number(xml.getElementsByTagName('merged')[0].childNodes[0].nodeValue);
+ var start = Number(xml.getElementsByTagName('start')[0].childNodes[0].nodeValue);
+ var num = Number(xml.getElementsByTagName('num')[0].childNodes[0].nodeValue);
+ var clients = Number(xml.getElementsByTagName("activeclients")[0].childNodes[0].nodeValue);
+ body.innerHTML = '<b>Records : ';
+ body.innerHTML += (start + 1) + ' to ' + (start + num) +
+ ' of ' + merged + ' (total hits: ' + total + ')</b>';
+
+ if (start + num < merged)
+ body.innerHTML += ' <a href="" ' +
+ 'onclick="document.search.startrec.value=' + (start + recstoshow) +
+ ";update_action('page')" +
+ ';check_search(); update_history(); return false;">Next</a>';
+
+ if (start > 0)
+ body.innerHTML += ' <a href="" ' +
+ 'onclick="document.search.startrec.value=' + (start - recstoshow) +
+ ";update_action('page')" +
+ ';check_search(); update_history();return false;">Previous</a>';
+
+ body.innerHTML += '<br/>';
+ for (i = 0; i < hits.length; i++)
+ {
+ body.innerHTML += '<p>';
+ body.innerHTML += (i + start + 1) + ': ';
+ var mk = hits[i].getElementsByTagName("title");
+ if (mk[0])
+ body.innerHTML += mk[0].childNodes[0].nodeValue;
+ body.innerHTML += '</p>';
+ }
+ shown++;
+ if (clients > 0)
+ {
+ if (shown < 5)
+ searchtimer = setTimeout(check_search, 1000);
+ else
+ searchtimer = setTimeout(check_search, 2000);
+ }
+ }
+ if (!termtimer)
+ termtimer = setTimeout(check_termlist, 1000);
+}
+
+function check_search()
+{
+ clearTimeout(searchtimer);
+ var url = "search.pz2?" +
+ "command=show" +
+ "&start=" + document.search.startrec.value +
+ "&num=" + recstoshow +
+ "&session=" + session +
+ "&block=1";
+ xshow = GetXmlHttpObject();
+ xshow.onreadystatechange=show_records;
+ xshow.open("GET", url);
+ xshow.send(null);
+}
+
+
+function refine_query (obj) {
+ var query_cell = document.getElementById('query');
+ var term = obj.innerHTML;
+
+ term = term.replace(/[\(\)]/g, '');
+ if (cur_termlist == 'subject')
+ query_cell.value += ' and su=(' + term + ')';
+ else if (cur_termlist == 'author')
+ query_cell.value += ' and au=(' + term + ')';
+ start_search();
+}
+
+function set_termlist(termlist)
+{
+ cur_termlist = termlist;
+ check_termlist();
+ if (termtimer)
+ {
+ clearTimeout(termtimer);
+ termtimer = 0;
+ }
+}
+
+function show_termlistoptions(body)
+{
+ var opts = Array(
+ Array('subject', 'Subject'),
+ Array('author', 'Author')
+ );
+
+ for (i in opts)
+ {
+ if (opts[i][0] == cur_termlist)
+ body.innerHTML += opts[i][1];
+ else
+ body.innerHTML += '<a href="" onclick="set_termlist(\'' + opts[i][0] +
+ '\'); return false">' + opts[i][1] + '</a>';
+ body.innerHTML += ' ';
+ }
+ body.innerHTML += '<p>';
+}
+
+function show_termlist()
+{
+ if (xtermlist.readyState != 4)
+ return;
+
+ var i;
+ var xml = xtermlist.responseXML;
+ var body = document.getElementById("termlist");
+ var hits = xml.getElementsByTagName("term");
+ var clients =
+ Number(xml.getElementsByTagName("activeclients")[0].childNodes[0].nodeValue);
+ if (!hits[0])
+ {
+ termtimer = setTimeout(check_termlist, 1000);
+ }
+ else
+ {
+ body.innerHTML = "<b>Limit results:</b><br>";
+ show_termlistoptions(body);
+ for (i = 0; i < hits.length; i++)
+ {
+ var namen = hits[i].getElementsByTagName("name");
+ if (namen[0])
+ body.innerHTML += '<a href="#" onclick="refine_query(this)">' +
+ namen[0].childNodes[0].nodeValue +
+ '</a>';
+ body.innerHTML += '<br>';
+ }
+ if (clients > 0)
+ termtimer = setTimeout(check_termlist, 2000);
+ }
+}
+
+function check_termlist()
+{
+ var url = "search.pz2?" +
+ "command=termlist" +
+ "&session=" + session +
+ "&name=" + cur_termlist;
+ xtermlist = GetXmlHttpObject();
+ xtermlist.onreadystatechange=show_termlist;
+ xtermlist.open("GET", url);
+ xtermlist.send(null);
+}
+
+function show_stat()
+{
+ if (xstat.readyState != 4)
+ return;
+ var i;
+ var xml = xstat.responseXML;
+ var body = document.getElementById("stat");
+ var nodes = xml.childNodes[0].childNodes;
+ var clients =
+ Number(xml.getElementsByTagName("activeclients")[0].childNodes[0].nodeValue);
+ if (!nodes[0])
+ {
+ stattimer = setTimeout(check_stat, 500);
+ }
+ else
+ {
+ body.innerHTML = "(";
+ for (i = 0; i < nodes.length; i++)
+ {
+ if (nodes[i].nodeType != 1)
+ continue;
+ var value = nodes[i].childNodes[0].nodeValue;
+ if (value == 0)
+ continue;
+ var name = nodes[i].nodeName;
+ body.innerHTML += ' ' + name + '=' + value;
+ }
+ body.innerHTML += ')';
+ if (clients > 0)
+ stattimer = setTimeout(check_stat, 2000);
+ }
+}
+
+function check_stat()
+{
+ var url = "search.pz2?" +
+ "command=stat" +
+ "&session=" + session;
+ xstat = GetXmlHttpObject();
+ xstat.onreadystatechange=show_stat;
+ xstat.open("GET", url);
+ xstat.send(null);
+}
+
+function search_started()
+{
+ if (xsearch.readyState != 4)
+ return;
+ var xml = xsearch.responseXML;
+ var error = xml.getElementsByTagName("error");
+ if (error[0])
+ {
+ var msg = error[0].childNodes[0].nodeValue;
+ alert(msg);
+ return;
+ }
+ check_search();
+ stattimer = setTimeout(check_stat, 1000);
+}
+
+function start_search()
+{
+ clearTimeout(termtimer);
+ termtimer = 0;
+ clearTimeout(searchtimer);
+ searchtimer = 0;
+ clearTimeout(stattimer);
+ stattimer = 0;
+ clearTimeout(showtimer);
+ showtimer = 0;
+ if (!targets_loaded)
+ {
+ alert("Please load targets first");
+ return;
+ }
+ var query = escape(document.getElementById('query').value);
+ var url = "search.pz2?" +
+ "command=search" +
+ "&session=" + session +
+ "&query=" + query;
+ xsearch = GetXmlHttpObject();
+ xsearch.onreadystatechange=search_started;
+ xsearch.open("GET", url);
+ xsearch.send(null);
+ document.getElementById("termlist").innerHTML = '';
+ document.getElementById("body").innerHTML = '';
+ update_history();
+ shown = 0;
+ document.search.startrec.value = 0;
+}
+
+
+function session_encode ()
+{
+ var i;
+ var session = '';
+
+ for (i = 0; i < session_cells.length; i++)
+ {
+ var name = session_cells[i];
+ var value = escape(document.getElementById(name).value);
+ session += '&' + name + '=' + value;
+ }
+
+ return session;
+}
+
+
+function session_restore (session)
+{
+ var fields = session.split(/&/);
+ var i;
+
+ for (i = 1; i < fields.length; i++)
+ {
+ var pair = fields[i].split(/=/);
+ var key = pair.shift();
+ var value = pair.join('=');
+ var cell = document.getElementById(key);
+
+ cell.value = value;
+ }
+
+}
+
+
+function session_read ()
+{
+ var ses = window.location.hash.replace(/^#/, '');
+ return ses;
+}
+
+
+function session_store (new_value)
+{
+ window.location.hash = '#' + new_value;
+}
+
+
+function update_history ()
+{
+ var session = session_encode();
+ session_store(session);
+ old_session = session;
+}
+
+
+function session_check ()
+{
+ var session = session_read();
+ var action = document.search.action_type.value;
+
+ clearInterval(url_surveillence);
+
+ if ( session != unescape(old_session) )
+ {
+ session_restore(session);
+
+ if (action == 'search') {
+ start_search();
+ } else if (action == 'page') {
+ check_search();
+ } else {
+ alert('Unregocnized action_type: ' + action);
+ return;
+ }
+ }
+
+ url_surveillence = setInterval(session_check, 200);
+}
+
+
+function get_facet_container (obj) {
+ return document.getElementById(obj.id + '_terms');
+}
+
+
+function toggle_facet (obj) {
+ var container = get_facet_container(obj);
+
+ if (obj.className == 'selected') {
+ obj.className = 'unselected';
+ container.style.display = 'block';
+ } else {
+ obj.className = 'selected';
+ container.style.display = 'none';
+ }
+}
projects / pazpar2-moved-to-github.git / commitdiff