-/* $Id: search.js,v 1.1 2007-01-05 11:30:13 sondberg Exp $
+/* $Id: search.js,v 1.53 2007-04-11 02:11:29 quinn Exp $
* ---------------------------------------------------
* Javascript container
*/
var xshow;
var xstat;
var xtermlist;
+var xfetchDetails;
var session = false;
var targetsloaded = false;
var shown;
var session_cells = Array('query', 'startrec', 'action_type');
var old_session = session_read();
var url_surveillence;
-var recstoshow = 15;
-var cur_termlist = "subject";
+var recstoshow = 20;
+var page_window = 5; // Number of pages prior to and after the current page
+var facet_list;
+var cur_sort = "relevance";
+var searched = 0;
+var cur_id = -1;
+var cur_rec = 0;
+var filter = '';
function initialize ()
{
+ facet_list = get_available_facets();
start_session();
session_check();
+ set_sort();
}
-
function GetXmlHttpObject()
{
var objXMLHttp=null
return;
var xml = xinitSession.responseXML;
var sesid = xml.getElementsByTagName("session")[0].childNodes[0].nodeValue;
- document.getElementById("status").innerHTML = "Live";
+ assign_text(document.getElementById("status"), 'Live');
session = sesid;
setTimeout(ping_session, 50000);
}
xinitSession.onreadystatechange=session_started;
xinitSession.open("GET", url);
xinitSession.send(null);
-
- //url_surveillence = setInterval(session_check, 200);
}
function ping_session()
var xml = xpingSession.responseXML;
var error = xml.getElementsByTagName("error");
if (error[0])
- {
- var msg = error[0].childNodes[0].nodeValue;
- alert(msg);
location = "?";
- return;
+ else
+ setTimeout(ping_session, 50000);
+}
+
+function update_action (new_action) {
+ document.search.action_type.value = new_action;
+}
+
+
+function make_pager (hits, offset, max) {
+ var html = '';
+ var off;
+ var start_offset = offset - page_window * max;
+ var div_elem = document.createElement('div');
+
+ div_elem.className = 'pages';
+
+ if (start_offset < 0) {
+ start_offset = 0;
}
- setTimeout(ping_session, 50000);
+
+ for (off = start_offset;
+ off < hits && off < (start_offset + 2 * page_window * max);
+ off += max) {
+
+ var p = off / max + 1;
+ var page_elem = create_element('a', p);
+ var newline_node = document.createTextNode(' ');
+
+ if ((offset >= off) && (offset < (off + max))) {
+ page_elem.className = 'select';
+ }
+
+ page_elem.setAttribute('off', off);
+ page_elem.style.cursor = 'pointer';
+ page_elem.onclick = function () {
+ update_offset(this.getAttribute('off'));
+ };
+
+ div_elem.appendChild(page_elem);
+ div_elem.appendChild(newline_node);
+ }
+
+ return div_elem;
+}
+
+
+function update_offset (offset) {
+ clearTimeout(searchtimer);
+ document.search.startrec.value = offset;
+ update_action('page');
+ check_search();
+ update_history();
+ return false;
+}
+
+
+function create_element (name, cdata) {
+ var elem_node = document.createElement(name);
+ elem_node.innerHTML = cdata;
+
+ return elem_node;
+}
+
+
+function clear_cell (cell) {
+ while (cell.hasChildNodes())
+ cell.removeChild(cell.firstChild);
+}
+
+
+function append_text(cell, text) {
+ text_node = document.createTextNode(text);
+ cell.appendChild(text_node);
+}
+
+
+function assign_text (cell, text) {
+ clear_cell(cell);
+ append_text(cell, text);
}
-function targets_loaded()
+function set_sort_opt(n, opt, str)
{
- if (xloadTargets.readyState != 4)
+ var txt = document.createTextNode(str);
+ if (opt == cur_sort)
+ n.appendChild(txt);
+ else
+ {
+ var a = document.createElement('a');
+ a.appendChild(txt);
+ a.setAttribute('href', "");
+ a.setAttribute('id', opt);
+ a.onclick = function() { set_sort(this.getAttribute('id')); return false; };
+ n.appendChild(a);
+ }
+}
+
+function set_sort(sort)
+{
+ if (sort && sort != cur_sort)
+ {
+ cur_sort = sort;
+ if (searched)
+ check_search();
+ }
+
+ var t = document.getElementById("sortselect");
+ clear_cell(t);
+ t.appendChild(document.createTextNode("Sort results by: "));
+ set_sort_opt(t, 'relevance', 'Relevance');
+ t.appendChild(document.createTextNode(" or "));
+ set_sort_opt(t, 'title:1', 'Title');
+}
+
+function displayname(name)
+{
+ if (name == 'md-author')
+ return 'Author';
+ else if (name == 'md-subject')
+ return 'Subject';
+ else if (name == 'md-date')
+ return 'Date';
+ else if (name == 'md-isbn')
+ return 'ISBN';
+ else if (name == 'md-publisher')
+ return 'Publisher';
+ else if (name == 'md-url')
+ return 'URL';
+ else if (name == 'md-title')
+ return '@';
+ else if (name == 'md-id')
+ return 'Local ID';
+ else if (name == 'md-description')
+ return 'Description';
+ else if (name == 'md-lccn')
+ return 'LCCN';
+ else if (name == 'recid')
+ return '@';
+ else if (name == 'location')
+ return '@';
+ else
+ return name;
+}
+
+function hyperlink_field(name)
+{
+ if (name == 'md-author')
+ return 'au';
+ else if (name == 'md-subject')
+ return 'su';
+ else if (name == 'md-url')
+ return 'URL';
+ else
+ return 0;
+}
+
+function paint_details_tr(name, dn)
+{
+ //emit a table row
+ var dname = displayname(name);
+ var ln = create_element('b', dname);
+ var tln = document.createElement('td');
+ tln.width = '90';
+ tln.vAlign = 'top';
+ tln.appendChild(ln);
+ var tr = document.createElement('tr');
+ tr.appendChild(tln);
+ tr.appendChild(dn);
+ return tr;
+}
+
+function cleanurl(v)
+{
+ var v1 = v;
+ var v2 = v1.replace(/\?.*$/, "");
+ var v3 = v2.replace(/http:\/\//, "");
+ return v3;
+}
+
+function paint_data_elements(target, node)
+{
+ var nodes = node.childNodes;
+ var dn = 0;
+ var lastname = '';
+ var i;
+ for (i = 0; i < nodes.length; i++)
+ {
+ if (nodes[i].nodeType != 1)
+ continue;
+ var name = nodes[i].nodeName;
+ if (name == 'recid' || name == 'md-title')
+ continue;
+ if (name != lastname && lastname != 'location')
+ {
+ if (dn)
+ {
+ var tr = paint_details_tr(lastname, dn);
+ target.appendChild(tr);
+ }
+ dn = document.createElement('td');
+ lastname = name;
+ }
+ if (name == 'location')
+ {
+ dn = document.createElement('td');
+ dn.appendChild(paint_subrecord(nodes[i]));
+ target.appendChild(paint_details_tr('Location', dn));
+ continue;
+ }
+ if (!nodes[i].childNodes[0])
+ continue;
+ var value = nodes[i].childNodes[0].nodeValue;
+ if (dn.childNodes[0])
+ dn.appendChild(document.createTextNode('; '));
+ var hyl = hyperlink_field(name);
+ var nv;
+ if (hyl)
+ {
+ nv = create_element('a', cleanurl(value));
+ if (hyl == 'URL')
+ {
+ nv.href = value;
+ nv.target = '_blank';
+ }
+ else
+ {
+ nv.href = '#';
+ nv.setAttribute('term', value);
+ nv.setAttribute('searchfield', hyl);
+ nv.onclick = function() { hyperlink_search(this); return false; };
+ }
+ }
+ else if (name == 'md-lccn')
+ {
+ nv = document.createElement('span');
+ nv.appendChild(document.createTextNode(value + ' '));
+ var link = create_element('a', 'Show title in LoC');
+ link.setAttribute('target', '_blank');
+ link.setAttribute('href', 'http://catalog.loc.gov/cgi-bin/Pwebrecon.cgi?DB=local&CNT=10&CMD=10+records+per+page&CMD=lccn+' + value);
+ nv.appendChild(link);
+
+ }
+ else if (name == 'md-isbn')
+ {
+ nv = document.createElement('span');
+ nv.appendChild(document.createTextNode(value + ' '));
+ var link = create_element('a', 'search OpenWorldCat');
+ link.setAttribute('target', '_blank');
+ link.setAttribute('href', 'http://www.worldcat.org/search?q=isbn%3A' + value);
+ nv.appendChild(link);
+ }
+ else
+ nv = document.createTextNode(value);
+ dn.appendChild(nv);
+ }
+ if (dn && lastname != 'location')
+ {
+ var tr = paint_details_tr(lastname, dn);
+ target.appendChild(tr);
+ }
+}
+
+function paint_subrecord(node)
+{
+ var table = document.createElement('table');
+ var tbody = document.createElement('tbody');
+ var zurl = node.getAttribute('id');
+ var name = node.getAttribute('name');
+ var tr;
+ var td;
+ if (name)
+ td = create_element('td', name);
+ else
+ td = create_element('td', zurl);
+ tr = paint_details_tr('Source', td);
+ tbody.appendChild(tr);
+ paint_data_elements(tbody, node);
+ table.appendChild(tbody);
+ return table;
+}
+
+function paint_details(body, xml)
+{
+ clear_cell(body);
+ var table = document.createElement('table');
+ var tbody = document.createElement('tbody');
+ table.setAttribute('cellpadding', 2);
+ paint_data_elements(tbody, xml.childNodes[0]);
+ table.appendChild(tbody);
+ body.appendChild(table);
+ body.style.display = 'inline';
+}
+
+function show_details()
+{
+ if (xfetchDetails.readyState != 4)
return;
- var xml = xloadTargets.responseXML;
+ var xml = xfetchDetails.responseXML;
var error = xml.getElementsByTagName("error");
if (error[0])
{
var msg = error[0].childNodes[0].nodeValue;
alert(msg);
+ location = "?";
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");
+ var idn = xml.getElementsByTagName('recid');
+ if (!idn[0])
return;
+ var id = idn[0].childNodes[0].nodeValue;
+ cur_id = id;
+ cur_rec = xml;
+
+ var nodes = document.getElementsByName('listrecord');
+ var i;
+ for (i = 0; i < nodes.length; i++)
+ {
+ var dets = nodes[i].getElementsByTagName('div');
+ if (dets[0])
+ dets[0].style.display = 'none';
}
- 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);
-}
+ var body = document.getElementById('rec_' + id);
+ if (!body)
+ return;
+ paint_details(body, xml);
+}
-function update_action (new_action) {
- document.search.action_type.value = new_action;
+function hyperlink_search(obj)
+{
+ var field = obj.getAttribute('searchfield');
+ var term = obj.getAttribute('term');
+ var queryfield = document.getElementById('query');
+ queryfield.value = field + '="' + term + '"';
+ start_search();
}
+function fetch_details(id)
+{
+ cur_id = -1;
+ if (id == cur_id)
+ {
+ cur_id = -1;
+ return;
+ }
+ if (!session)
+ return;
+ var url = "search.pz2?session=" + session +
+ "&command=record" +
+ "&id=" + id;
+ SendXmlHttpObject(xfetchDetails = GetXmlHttpObject(), url, show_details);
+}
function show_records()
{
var xml = xshow.responseXML;
var body = document.getElementById("body");
var hits = xml.getElementsByTagName("hit");
+
+ clear_cell(body);
+
if (!hits[0]) // We should never get here with blocking operations
{
- body.innerHTML = "No records yet";
+ assign_text(body, '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/>';
+ var pager = make_pager(merged, start,recstoshow);
+ var break_node1 = document.createElement('br');
+ var break_node2 = document.createElement('br');
+ var record_container = document.createElement('div');
+ var interval = create_element('div', 'Records : ' + (start + 1) +
+ ' to ' + (start + num) + ' of ' +
+ merged + ' (total hits: ' +
+ total + ')');
+ searched = 1;
+ interval.className = 'results';
+ record_container.className = 'records';
+
+ body.appendChild(pager);
+ body.appendChild(interval);
+ body.appendChild(break_node1);
+ body.appendChild(break_node2);
+ body.appendChild(record_container);
+
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>';
+ var tn = hits[i].getElementsByTagName("md-title");
+ var title = '';
+ var an = hits[i].getElementsByTagName("md-author");
+ var author = '';
+ var cn = hits[i].getElementsByTagName("count");
+ var count = 1;
+ var idn = hits[i].getElementsByTagName("recid");
+
+ if (tn[0] && tn[0].childNodes[0]) {
+ title = tn[0].childNodes[0].nodeValue;
+ } else {
+ title = 'N/A';
+ }
+ if (an[0] && an[0].childNodes[0])
+ author = an[0].childNodes[0].nodeValue;
+ if (cn[0])
+ count = Number(cn[0].childNodes[0].nodeValue);
+ var id = idn[0].childNodes[0].nodeValue;
+
+ var record_div = document.createElement('div');
+ record_div.className = 'record';
+ record_div.setAttribute('name', 'listrecord');
+
+ var record_cell = create_element('a', title);
+ record_cell.setAttribute('href', '#' + id);
+ record_cell.setAttribute('id', id);
+ //record_cell.onclick = function() { fetch_details(this.getAttribute('id')); return false; }
+ record_cell.onclick = function() { fetch_details(this.getAttribute('id')); return false; };
+ record_div.appendChild(record_cell);
+ if (author)
+ {
+ record_div.appendChild(document.createTextNode(' by '));
+ var al = create_element('a', author);
+ al.setAttribute('href', '#');
+ al.setAttribute('term', author);
+ al.setAttribute('searchfield', 'au');
+ al.onclick = function() { hyperlink_search(this); return false; };
+ record_div.appendChild(al);
+ }
+ if (count > 1)
+ record_div.appendChild(document.createTextNode(
+ ' (' + count + ')'));
+ var det_div = document.createElement('div');
+ if (id == cur_id)
+ paint_details(det_div, cur_rec);
+ else
+ det_div.style.display = 'none';
+ det_div.setAttribute('id', 'rec_' + id);
+ det_div.setAttribute('name', 'details');
+ record_div.appendChild(det_div);
+ record_container.appendChild(record_div);
}
+
shown++;
if (clients > 0)
{
}
}
if (!termtimer)
- termtimer = setTimeout(check_termlist, 1000);
+ termtimer = setTimeout(check_termlist, 500);
}
function check_search()
"&start=" + document.search.startrec.value +
"&num=" + recstoshow +
"&session=" + session +
+ "&sort=" + cur_sort +
"&block=1";
xshow = GetXmlHttpObject();
xshow.onreadystatechange=show_records;
function refine_query (obj) {
+ var term = obj.getAttribute('term');
+ var cur_termlist = obj.getAttribute('facet');
var query_cell = document.getElementById('query');
- var term = obj.innerHTML;
+ var id = obj.getAttribute('target_id');
term = term.replace(/[\(\)]/g, '');
+
if (cur_termlist == 'subject')
- query_cell.value += ' and su=(' + term + ')';
+ query_cell.value += ' and su="' + term + '"';
else if (cur_termlist == 'author')
- query_cell.value += ' and au=(' + term + ')';
- start_search();
-}
+ query_cell.value += ' and au="' + term + '"';
+ else if (cur_termlist == 'date')
+ query_cell.value += ' and date="' + term + '"';
+ else if (cur_termlist == 'xtargets')
+ filter ='pz:id=' + id;
-function set_termlist(termlist)
-{
- cur_termlist = termlist;
- check_termlist();
- if (termtimer)
- {
- clearTimeout(termtimer);
- termtimer = 0;
- }
+ start_search();
}
-function show_termlistoptions(body)
+function clear_termlists()
{
- 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>';
+ var i;
+ for (i = 0; i < facet_list.length; i++)
+ clear_cell(facet_list[i][1]);
}
-function show_termlist()
+function show_termlists()
{
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
+ var lists = xml.getElementsByTagName("list");
+
+ for (i = 0; i < lists.length; i++)
{
- body.innerHTML = "<b>Limit results:</b><br>";
- show_termlistoptions(body);
- for (i = 0; i < hits.length; i++)
+ var listname = lists[i].getAttribute('name');
+ var body = document.getElementById('facet_' + listname + '_terms');
+ if (body.style.display == 'none')
+ continue;
+ clear_cell(body);
+ var terms = lists[i].getElementsByTagName('term');
+ var t;
+ for (t = 0; t < terms.length; t++)
{
- var namen = hits[i].getElementsByTagName("name");
+ var namen = terms[t].getElementsByTagName("name");
+ var freqn = terms[t].getElementsByTagName("frequency");
+ var idn = terms[t].getElementsByTagName("id");
if (namen[0])
- body.innerHTML += '<a href="#" onclick="refine_query(this)">' +
- namen[0].childNodes[0].nodeValue +
- '</a>';
- body.innerHTML += '<br>';
+ {
+ var term = namen[0].childNodes[0].nodeValue;
+ var freq = freqn[0].childNodes[0].nodeValue;
+ var id;
+ if (idn[0])
+ id = idn[0].childNodes[0].nodeValue;
+ var refine_cell = create_element('a', term + ' (' + freq + ')');
+ refine_cell.setAttribute('href', '#');
+ refine_cell.setAttribute('term', term);
+ refine_cell.setAttribute('facet', listname);
+ refine_cell.setAttribute('target_id', id);
+ refine_cell.onclick = function () {
+ refine_query(this);
+ return false;
+ };
+ body.appendChild(refine_cell);
+ }
}
- if (clients > 0)
- termtimer = setTimeout(check_termlist, 2000);
}
+ if (clients > 0)
+ termtimer = setTimeout(check_termlist, 1000);
}
function check_termlist()
{
+ var facet_names = '';
+ var i;
+ for (i = 0; i < facet_list.length; i++)
+ if (facet_list[i][1].style.display != 'none')
+ {
+ if (facet_names)
+ facet_names += ',';
+ facet_names += facet_list[i][0];
+ }
var url = "search.pz2?" +
"command=termlist" +
"&session=" + session +
- "&name=" + cur_termlist;
- xtermlist = GetXmlHttpObject();
- xtermlist.onreadystatechange=show_termlist;
- xtermlist.open("GET", url);
- xtermlist.send(null);
+ "&name=" + facet_names +
+ "&num=12";
+ SendXmlHttpObject(xtermlist = GetXmlHttpObject(), url, show_termlists);
}
function show_stat()
}
else
{
- body.innerHTML = "(";
+ assign_text(body, '(');
for (i = 0; i < nodes.length; i++)
{
if (nodes[i].nodeType != 1)
if (value == 0)
continue;
var name = nodes[i].nodeName;
- body.innerHTML += ' ' + name + '=' + value;
+ append_text(body, ' ' + name + '=' + value);
}
- body.innerHTML += ')';
+
+ append_text(body, ')');
if (clients > 0)
stattimer = setTimeout(check_stat, 2000);
}
stattimer = setTimeout(check_stat, 1000);
}
+function clear_filter()
+{
+ filter = '';
+}
+
function start_search()
{
clearTimeout(termtimer);
stattimer = 0;
clearTimeout(showtimer);
showtimer = 0;
- if (!targets_loaded)
- {
- alert("Please load targets first");
- return;
- }
+ cur_id = -1;
+ clear_termlists();
var query = escape(document.getElementById('query').value);
var url = "search.pz2?" +
"command=search" +
"&session=" + session +
- "&query=" + query;
+ "&query=" + query +
+ "&filter=" + escape(filter);
xsearch = GetXmlHttpObject();
xsearch.onreadystatechange=search_started;
xsearch.open("GET", url);
xsearch.send(null);
- document.getElementById("termlist").innerHTML = '';
- document.getElementById("body").innerHTML = '';
+ clear_cell(document.getElementById("body"));
update_history();
shown = 0;
document.search.startrec.value = 0;
}
-
function session_encode ()
{
var i;
}
+function get_available_facets () {
+ var facet_container = document.getElementById('termlists');
+ var facet_cells = facet_container.childNodes;
+ var facets = Array();
+ var i;
+
+ for (i = 0; i < facet_cells.length; i++) {
+ var cell = facet_cells.item(i);
+
+ if (cell.className == 'facet') {
+ var facet_name = cell.id.replace(/^facet_([^_]+)_terms$/, "$1");
+ facets.push(Array(facet_name, cell));
+ }
+ }
+
+ return facets;
+}
+
+
function get_facet_container (obj) {
return document.getElementById(obj.id + '_terms');
}
if (obj.className == 'selected') {
obj.className = 'unselected';
- container.style.display = 'block';
+ container.style.display = 'inline';
+ check_termlist();
} else {
obj.className = 'selected';
container.style.display = 'none';