2 ** $Id: client.js,v 1.20 2007-04-20 13:56:20 jakub Exp $
3 ** MasterKey - pazpar2's javascript client .
6 /* start with creating pz2 object and passing it event handlers*/
10 //"onstat": my_onstat,
12 "termlist": "xtargets,subject,author,date",
13 //"onbytarget": my_onbytarget,
14 "onrecord": my_onrecord,
15 "errorhandler": my_errorhandler
18 /* some state variable */
19 var currentSort = 'relevance';
20 var currentResultsPerPage = 20;
22 var curQuery = new pzQuery();
24 var currentDetailedId = null;
25 var currentDetailedData = null;
27 var termStartup = true;
28 var advancedOn = false;
30 var showBriefLocations = false;
32 /* wait until the DOM is ready and register basic handlers */
33 $(document).ready( function() {
34 document.search.onsubmit = onFormSubmitEventHandler;
36 document.search.query.value = '';
37 document.search.title.value = '';
38 document.search.author.value = '';
39 document.search.subject.value = '';
40 document.search.date.value = '';
42 $('#advanced').click(toggleAdvanced);
44 $('#sort').change(function(){
45 currentSort = this.value;
47 my_paz.show(0, currentResultsPerPage, currentSort);
50 $('#perpage').change(function(){
51 currentResultsPerPage = this.value;
53 my_paz.show(0, currentResultsPerPage, currentSort);
57 /* search button event handler */
58 function onFormSubmitEventHandler() {
60 curQuery.clearFilter();
63 $('div.content').show();
64 $("div.leftbar").show();
69 *********************************************************************************
70 ** pz2 Event Handlers ***********************************************************
71 *********************************************************************************
73 function my_errorhandler(err)
77 case 'QUERY': alert("Your query was not understood. Please rephrase."); break;
78 default: alert(err.message);
83 ** data.hits["md-title"], data.hits["md-author"], data.hits.recid, data.hits.count
84 ** data.activeclients, data.merged, data.total, data.start, data.num
86 function my_onshow(data)
88 var recsBody = $('div.records');
91 for (var i = 0; i < data.hits.length; i++) {
92 var title = data.hits[i]["md-title"] || 'N/A';
93 var author = data.hits[i]["md-author"] || '';
94 var id = data.hits[i].recid;
95 var count = data.hits[i].count || 1;
97 var recBody = $('<div class="record" id="rec_'+id+'"></div>');
98 var aTitle = $('<a class="recTitle">'+title+'</a>').appendTo(recBody);
99 aTitle.click(function(){
100 var clickedId = this.parentNode.id.split('_')[1];
101 if(currentDetailedId == clickedId){
102 $(this.parentNode.lastChild).remove();
103 currentDetailedId = null;
105 } else if (currentDetailedId != null) {
106 $('#rec_'+currentDetailedId).children('.detail').remove();
108 currentDetailedId = clickedId;
109 my_paz.record(currentDetailedId);
113 recBody.append('<i> by </i>');
114 $('<a name="author" class="recAuthor">'+author+'</a>\n').click(function(){
115 refine("authoronly", this.firstChild.nodeValue) }).appendTo(recBody);
118 if( currentDetailedId == id ) {
119 var detailBox = $('<div class="detail"></div>').appendTo(recBody);
120 drawDetailedRec(detailBox);
123 if (showBriefLocations) {
124 var location = data.hits[i]['location'];
127 for (l in location) {
130 list += location[l].name;
132 recBody.append('<span> ('+list+')</span>');
136 recBody.append('<span> ('+count+')</span>');
140 recsBody.append('<div class="resultNum">'+(currentPage*currentResultsPerPage+i+1)+'.</a>');
141 recsBody.append(recBody);
143 drawPager(data.merged, data.total);
147 ** data.activeclients, data.hits, data.records, data.clients, data.searching
149 function my_onstat(data){}
152 ** data[listname]: name, freq, [id]
154 function my_onterm(data)
158 var termLists = $("#termlists");
160 for(var key in data){
161 if (key == "activeclients")
164 var listClass = "unselected";
166 if (key == "xtargets"){
167 listName = "resource";
168 listClass = "selected";
171 var termList = $('<div class="termlist" id="term_'+key+'"/>').appendTo(termLists);
172 var termTitle = $('<div class="termTitle"><a class="'+listClass+'">'+listName+'</a></div>').appendTo(termList);
173 termTitle.click(function(){
174 if( this.firstChild.className == "selected" ){
175 this.firstChild.className = "unselected";
176 $(this.nextSibling).hide();
178 this.firstChild.className = "selected";
179 $(this.nextSibling).show();
183 listEntries = $('<div class="termEntries"></div>');
184 if (key != "xtargets") listEntries.hide();
185 listEntries.appendTo(termList);
187 for(var i = 0; i < data[key].length; i++)
189 if (key == "xtargets"){
190 var listItem = $('<a class="sub" name="xtarget" value="'+data[key][i].id+'">'+data[key][i].name +'<span> ('+data[key][i].freq+')</span>'+'</a>');
191 listItem.click(function(){
192 refine(this.name, this.attributes[0].nodeValue, this.firstChild.nodeValue) });
193 listItem.appendTo(listEntries);
195 var listItem = $('<a class="sub" name="'+key+'">'+data[key][i].name
196 +'<span> ('+data[key][i].freq+')</span>'+'</a>');
197 listItem.click(function(){ refine(this.name, this.firstChild.nodeValue) });
198 listItem.appendTo(listEntries);
201 $('<hr/>').appendTo(termLists);
207 for(var key in data){
208 if (key == "activeclients")
210 var listEntries = $('#term_'+key).children('.termEntries');
211 if( data[key].length ) listEntries.empty();
213 for(var i = 0; i < data[key].length; i++){
214 if (key == "xtargets"){
215 var listItem = $('<a class="sub" name="xtarget" value="'+data[key][i].id+'">'+data[key][i].name+'<span> ('+data[key][i].freq+')</span>'+'</a>').click(function(){
216 refine(this.name, this.attributes[0].nodeValue, this.firstChild.nodeValue) });
217 listItem.appendTo(listEntries);
219 var listItem = $('<a class="sub" name="'+key+'">'+data[key][i].name
220 +'<span> ('+data[key][i].freq+')</span>'+'</a>').click(function(){
221 refine(this.name, this.firstChild.nodeValue) });
222 listItem.appendTo(listEntries);
230 ** data["md-title"], data["md-date"], data["md-author"], data["md-subject"], data["location"][0].name
232 function my_onrecord(data)
234 currentDetailedData = data;
239 ** data[i].id, data[i].hits, data[i].diagnostic, data[i].records, data[i].state
241 function my_onbytarget(data){}
244 *********************************************************************************
245 ** HELPER FUNCTIONS *************************************************************
246 *********************************************************************************
248 function fireSearch()
250 $('div.showing').empty().text('No records to show.');
251 $('div.pages').empty().html(' ');
252 $('div.records').empty();
253 currentDetailedId = null;
254 if( !curQuery.totalLength() )
256 my_paz.search(curQuery.toCCL(), currentResultsPerPage, currentSort, curQuery.getFilterString() );
259 function toggleAdvanced()
262 $("div.advanced").hide();
263 $("div.search").height(73);
265 $("#advanced").text("Advanced search");
267 $("div.search").height(173);
268 $("div.advanced").show();
270 $("#advanced").text("Simple search");
271 loadFormFieldsFromQuery();
275 function drawDetailedRec(detailBox)
277 if( detailBox == undefined )
278 detailBox = $('<div class="detail"></div>').appendTo($('#rec_'+currentDetailedId));
280 var detailTable = $('<table></table>');
281 var recLocation = currentDetailedData["location"];
285 hdtarget = $('<tr><td class="item">Available at:</td></tr>');
286 detailTable.append(hdtarget);
288 for(var i=0; i < recLocation.length; i++)
291 hdtarget = $('<tr><td class="item"> </td></tr>').appendTo(detailTable);
292 var url = recLocation[i]["md-url"];
293 var description = recLocation[i]["md-description"];
294 hdtarget.append('<td><b>'+recLocation[i].name+'</b></td>');
296 detailTable.append($('<tr><td> </td><td>'+description+'</td></tr>'));
298 var tline = $('<tr><td> </td></tr>');
299 var td = $('<td></td>').appendTo(tline);
300 var tlink = $('<a>Go to resource</a>');
301 tlink.attr('href', url);;
302 tlink.attr('target', '_blank');
304 detailTable.append(tline);
306 hdtarget = undefined;
310 detailTable.appendTo(detailBox);
313 function refine(field, value, opt)
316 case "authoronly": curQuery.reset(); curQuery.addTerm('au', value); break;
317 case "author": curQuery.addTerm('au', value); break;
318 case "title": curQuery.addTerm('ti', value); break;
319 case "date": curQuery.addTerm('date', value); break;
320 case "subject": curQuery.addTerm('su', value); break;
321 case "xtarget": curQuery.setFilter(opt, value); break;
325 loadFormFieldsFromQuery();
332 function loadQueryFromForm()
335 curQuery.simpleQuery = document.search.query.value;
339 curQuery.addTermsFromList(document.search.author.value, 'au');
340 curQuery.addTermsFromList(document.search.title.value, 'ti');
341 curQuery.addTermsFromList(document.search.date.value, 'date');
342 curQuery.addTermsFromList(document.search.subject.value, 'su');
346 function loadFormFieldsFromQuery()
348 document.search.author.value = '';
349 document.search.title.value = '';
350 document.search.date.value = '';
351 document.search.subject.value = '';
353 for(var i = 0; i < curQuery.numTerms; i++)
355 switch( curQuery.getTermFieldByIdx(i) )
357 case "au": document.search.author.value += curQuery.getTermValueByIdx(i) + '; '; break;
358 case "ti": document.search.title.value += curQuery.getTermValueByIdx(i) + '; '; break;
359 case "date": document.search.date.value += curQuery.getTermValueByIdx(i) + '; '; break;
360 case "su": document.search.subject.value += curQuery.getTermValueByIdx(i) + '; '; break;
365 function drawPager(max, hits)
367 var firstOnPage = currentPage * currentResultsPerPage + 1;
368 var lastOnPage = (firstOnPage + currentResultsPerPage - 1) < max ? (firstOnPage + currentResultsPerPage - 1) : max;
370 var results = $('div.showing');
372 results.append('Displaying: <b>'+firstOnPage+'</b> to <b>'+lastOnPage+
373 '</b> of <b>'+max+'</b> (total hits: '+hits+')');
374 var pager = $('div.pages');
377 if ( currentPage > 0 ){
378 $('<a class="previous_active">Previous</a>').click(function() { my_paz.showPrev(1); currentPage--; }).appendTo(pager.eq(0));
379 $('<a class="previous_active">Previous</a>').click(function() { my_paz.showPrev(1); currentPage--; }).appendTo(pager.eq(1));
382 pager.append('<a class="previous_inactive">Previous</a>');
384 var numPages = Math.ceil(max / currentResultsPerPage);
386 var start = ( currentPage - 5 > 0 ? currentPage - 5 : 1 );
387 var stop = ( start + 12 < numPages ? start + 12 : numPages );
389 if (start > 1) $('<span>... </span>').appendTo(pager);
391 for(var i = start; i <= stop; i++)
393 if( i == (currentPage + 1) ){
394 $('<a class="select">'+i+'</a>').appendTo(pager);
397 var pageLink = $('<a class="page">'+i+'</a>');
398 var plClone = pageLink.clone();
400 pageLink.click(function() {
401 my_paz.showPage(this.firstChild.nodeValue - 1);
402 currentPage = (this.firstChild.nodeValue - 1);
405 plClone.click(function() {
406 my_paz.showPage(this.firstChild.nodeValue - 1);
407 currentPage = (this.firstChild.nodeValue - 1);
411 pager.eq(0).append(pageLink);
412 pager.eq(1).append(plClone);
415 if (stop < numPages) $('<span> ...</span>').appendTo(pager);
417 if ( currentPage < (numPages-1) ){
418 $('<a class="next_active">Next</a>').click(function() { my_paz.showNext(1); currentPage++; }).appendTo(pager.eq(0));
419 $('<a class="next_active">Next</a>').click(function() { my_paz.showNext(1); currentPage++; }).appendTo(pager.eq(1));
422 pager.append('<a class="next_inactive">Next</a>');
425 function drawBreadcrumb()
427 var bc = $("#breadcrumb");
430 if(curQuery.filterNums) $('<strong id="filter"><a>'+curQuery.getFilterName(0)+'</a>: </strong>').click(function() {
431 curQuery.removeFilter(0);
435 bc.append('<span>'+curQuery.simpleQuery+'</span>');
437 for(var i = 0; i < curQuery.numTerms; i++){
438 bc.append('<strong> + </strong>');
439 var bcLink = $('<a id="pos_'+i+'">'+curQuery.getTermValueByIdx(i)+'</a>').click(function() {
440 curQuery.removeTermByIdx(this.id.split('_')[1]);