source: main/trunk/greenstone3/web/interfaces/default/js/map-scripts.js@ 32833

Last change on this file since 32833 was 32833, checked in by ak19, 5 years ago

Zeddy cleanup. Better debugging info as to where in the code we are. Removed an unused var and some commented out code.
  • Property svn:executable set to *
File size: 22.8 KB
Line 
1//var newLat, newLng = 0;
2var _docList = new Array();
3_docList.ids = new Array();
4_docList.getDocByIndex = function(index)
5{
6 return _docList[_docList.ids[index]];
7};
8
9var _map;
10var _intervalHandle;
11var _baseURL = document.URL.substring(0, document.URL.indexOf("?") + 1);
12var _retrievedClassifiers = new Array();
13var _preventLoopingSingleMarker = false;
14var _searchRunning = false;
15var _nearbyDocs = new Array();
16var _scrollThroughDefault = true;
17
18function initializeMapScripts()
19{
20 modifyFunctions();
21 setUpMap();
22
23 var jsonNodeDiv = $("#jsonNodes");
24 if(jsonNodeDiv.length)
25 {
26 var jsonNodes = eval(jsonNodeDiv.html());
27 if(jsonNodes && jsonNodes.length > 0)
28 {
29 for(var i = 0; i < jsonNodes.length; i++)
30 {
31 _docList[jsonNodes[i].nodeID] = jsonNodes[i];
32 _docList.ids.push(jsonNodes[i].nodeID);
33 createMarker(jsonNodes[i], true);
34 }
35 updateMap();
36 }
37 else
38 {
39 //$("#map_canvas").css({visibility:"hidden", height:"0px"});
40 $("#map_canvas").css({visibility:"hidden"});
41 }
42 }
43
44 _docList.loopIndex = 0;
45
46 if(_docList.ids.length > 1)
47 {
48 var startStopCheckbox = $("<input>", {"type": "checkbox", "checked": _scrollThroughDefault, "id": "scrollCheckbox"});
49 startStopCheckbox.click(function()
50 {
51 // http://stackoverflow.com/questions/901712/how-to-check-if-a-checkbox-is-checked-in-jquery
52 // http://stackoverflow.com/questions/5270689/attrchecked-checked-does-not-work
53
54 if($('#scrollCheckbox').is(':checked')) // OR: if(document.getElementById('scrollCheckbox').checked)
55 {
56 if(_intervalHandle == null)
57 {
58 _intervalHandle = setInterval(loopThroughMarkers, 2000);
59 }
60 }
61 else
62 {
63 clearInterval(_intervalHandle);
64 _intervalHandle = null;
65 }
66 });
67
68 var label = $("<span>Scroll through places</span>");
69 var container = $("<div>", {"class": "ui-widget-header ui-corner-all", "style": "clear:right; float:right; padding:0px 5px 3px 0px;"});
70 container.append(startStopCheckbox);
71 container.append(label);
72
73 $(container).insertAfter("#map_canvas");
74
75 if (_scrollThroughDefault) {
76 _intervalHandle = setInterval(loopThroughMarkers, 2000);
77 }
78
79 }
80}
81
82function setUpMap()
83{
84
85
86 var myOptions =
87 {
88 zoom: 2,
89 center: new google.maps.LatLng(0, 0),
90 mapTypeId: google.maps.MapTypeId.HYBRID
91 };
92 var $map_canvas = $("#map_canvas");
93
94 if ($map_canvas.length > 0) {
95 _map = new google.maps.Map($map_canvas[0], myOptions);
96 google.maps.event.addListener(_map, 'bounds_changed', performSearchForMarkers);
97 }
98}
99
100function performSearchForMarkers()
101{
102 if(_searchRunning)
103 {
104 return;
105 }
106
107 _searchRunning = true;
108
109 var bounds = _map.getBounds();
110
111 var neLat = bounds.getNorthEast().lat();
112 var neLng = bounds.getNorthEast().lng();
113 var swLat = bounds.getSouthWest().lat();
114 var swLng = bounds.getSouthWest().lng();
115
116 var latDistance = neLat - swLat;
117 var lngDistance = neLng - swLng;
118
119 //Check which increment to use for latitude (i.e. 0.001, 0.01, 0.1 or 1 degree increments)
120 var latDelta;
121 var latPrecision;
122 for(var i = 3; i >= 0; i--)
123 {
124 latDelta = (1 / Math.pow(10, i));
125 if((latDistance / latDelta) <= 5 || latDelta == 1)
126 {
127 latPrecision = i;
128 break;
129 }
130 }
131
132 //Check which increment to use for longitude (i.e. 0.001, 0.01, 0.1 or 1 degree increments)
133 var lngDelta;
134 for(var i = 3; i >= 0; i--)
135 {
136 lngDelta = (1 / Math.pow(10, i));
137 if((lngDistance / lngDelta) <= 5 || lngDelta == 1)
138 {
139 lngPrecision = i;
140 break;
141 }
142 }
143
144 if(latDelta == 0.1){latDelta = 1; latPrecision = 0; }
145 if(lngDelta == 0.1){lngDelta = 1; lngPrecision = 0; }
146
147 var query = "";
148 for(var i = 0; i <= Math.floor(latDistance / latDelta) + 1; i++)
149 {
150 for(var j = 0; j <= Math.floor(lngDistance / lngDelta) + 1; j++)
151 {
152 //Some necessary variables
153 var newLat = neLat - (latDelta * i);
154 var newLatString = "" + newLat;
155 var newLatTrunc;
156 if(newLat < 0){newLatTrunc = Math.ceil(newLat);}
157 else{newLatTrunc = Math.floor(newLat);}
158
159 var newLng = neLng - (lngDelta * j);
160 var newLngString = "" + newLng;
161 var newLngTrunc;
162 if(newLng < 0){newLngTrunc = Math.ceil(newLng);}
163 else{newLngTrunc = Math.floor(newLng);}
164
165 //Construct query
166 query += "(";
167 query += "LA:" + coordToAbsDirected(newLatTrunc, "lat");
168 if(latDelta != 1)
169 {
170 query += "+AND+";
171 query += "LA:" + newLatString.substring(newLatString.indexOf(".") + 1, newLatString.indexOf(".") + latPrecision + 1);
172 }
173 query += "+AND+";
174 query += "LN:" + coordToAbsDirected(newLngTrunc, "lng");
175 if(lngDelta != 1)
176 {
177 query += "+AND+";
178 query += "LN:" + newLngString.substring(newLngString.indexOf(".") + 1, newLngString.indexOf(".") + lngPrecision + 1);
179 }
180 query += ")";
181
182 if(i != (Math.floor(latDistance / latDelta) + 1) || j != (Math.floor(lngDistance / lngDelta) + 1)){ query += "+OR+"; }
183 }
184 }
185
186 //var url = gs.xsltParams.library_name + "?a=q&s=RawQuery&rt=rd&c=" + gs.cgiParams.c + "&s1.rawquery=" + query + "&excerptid=jsonNodes";
187 var url = gs.xsltParams.library_name;
188 var data = "a=q&s=RawQuery&rt=rd&c=" + gs.cgiParams.c + "&s1.rawquery=" + query + "&excerptid=jsonNodes";
189 $.ajax({type:"POST", url:url, data:data})
190 .success(function(responseText)
191 {
192 //console.log("*** responseText (first 250) = " + responseText.substring(0,256));
193
194 if(responseText.search("id=\"jsonNodes") != -1)
195 {
196 var startIndex = responseText.indexOf(">");
197 var endIndex = responseText.indexOf("</");
198
199 var jsonNodes = eval(responseText.substring(startIndex+1, endIndex));
200 if(jsonNodes && jsonNodes.length > 0)
201 {
202 for(var i = 0; i < jsonNodes.length; i++)
203 {
204 var doc = jsonNodes[i];
205
206 var found = false;
207 for(var j = 0; j < _docList.ids.length; j++){if(doc.nodeID == _docList.ids[j]){found = true; break;}}
208
209 if(!found)
210 {
211 _docList[doc.nodeID] = doc;
212 _docList.ids.push(doc.nodeID);
213
214 createMarker(doc, false);
215 }
216 }
217 }
218 }
219 else
220 {
221 console.log("No JSON information received");
222 }
223
224 _searchRunning = false;
225 }).fail(function(responseText, textStatus, errorThrown) // fail() has replaced error(), http://api.jquery.com/jquery.ajax/
226 {
227 console.log("In map-scripts.performSearchForMarkers(): Got an error in ajax call");
228 _searchRunning = false;
229 });
230}
231
232function coordToAbsDirected(coord, type)
233{
234 var value = "" + coord;
235 if(coord < 0)
236 {
237 value = value.substring(1);
238 if(type == "lat")
239 {
240 value += "S";
241 }
242 else
243 {
244 value += "W";
245 }
246 }
247 else
248 {
249 if(type == "lat")
250 {
251 value += "N";
252 }
253 else
254 {
255 value += "E";
256 }
257 }
258
259 return value;
260}
261
262function updateMap()
263{
264 var markersOnMap = 0;
265 var bounds = new google.maps.LatLngBounds();
266 for(var i = 0; i < _docList.ids.length; i++)
267 {
268 var doc = _docList.getDocByIndex(i);
269 if(doc.parentCL && doc.parentCL.style.display == "none")
270 {
271 doc.marker.setVisible(false);
272 continue;
273 }
274 else
275 {
276 doc.marker.setVisible(true);
277 markersOnMap++;
278 }
279
280 bounds.extend(new google.maps.LatLng(doc.lat, doc.lng));
281 }
282
283 if(markersOnMap > 1)
284 {
285 _map.fitBounds(bounds);
286 } else if (markersOnMap == 1) {
287 // sometimes a single point bounds are too small for the map to display, so use center and zoom instead of fitbounds.
288 _map.setCenter(bounds.getCenter());
289 _map.setZoom(18); // arbitrary value that looked nice for my example
290 }
291}
292
293function loopThroughMarkers()
294{
295 if(_docList.ids.length == 0)
296 {
297 return;
298 }
299
300 var visibleMarkers = new Array();
301 for(var i = 0; i < _docList.ids.length; i++)
302 {
303 var doc = _docList.getDocByIndex(i);
304 if(doc.marker.getVisible())
305 {
306 visibleMarkers.push(doc);
307 }
308 }
309
310 if(visibleMarkers.length < 2)
311 {
312 clearAllInfoBoxes();
313 return;
314 }
315
316 clearAllInfoBoxes();
317
318 var elem = null;
319 while(!elem)
320 {
321 if(_docList.loopIndex >= visibleMarkers.length)
322 {
323 _docList.loopIndex = 0;
324 }
325
326 var doc = visibleMarkers[_docList.loopIndex];
327 var elem = gs.jqGet("div" + doc.nodeID);
328 if(elem.length)
329 {
330 elem.css("background", "#BBFFBB");
331 setTimeout(function(){elem.css("background", "");}, 2000);
332 }
333 _docList.loopIndex++;
334 }
335 doc.marker.markerInfo.open(_map, doc.marker);
336}
337
338function attachClickHandler(marker, nodeID)
339{
340 google.maps.event.addListener(marker, 'click', function()
341 {
342 document.location.href = gs.xsltParams.library_name + "?a=d&ed=1&c=" + gs.cgiParams.c + "&d=" + nodeID + "&dt=hierarchy&p.a=b&p.sa=&p.s=ClassifierBrowse";
343
344 });
345
346 if (("docEdit" in gs.cgiParams) && (gs.cgiParams['docEdit'])) {
347 google.maps.event.addListener(marker, 'mouseup', function()
348 {
349 var lat = marker.getPosition().lat();
350 var lng = marker.getPosition().lng();
351 var collection = gs.cgiParams.c;
352 var site_name = gs.xsltParams.site_name;
353
354 if (nodeID == "") {
355 nodeID = gs.cgiParams.d;
356 }
357 console.log("GPS Click handler in collection:" + collection + " in site: " + site_name + " for Doc: " + nodeID + "(" + lat + "," + lng + ")");
358
359 var callbackFunction = function(){console.log("Completed saving metadata changes. You must rebuild the collection for the changes to take effect.");};
360
361 // set 5th parameter, metapos (metadata position) or 7th param prevMetaValue (previous metadata value) to non-null if you want metamode=override to work
362 // if neither of these 2 are set, then metamode is changed to 'accumulate' instead.
363 gs.functions.setArchivesMetadata(collection, site_name, nodeID, "Latitude", null, lat, null, "override", function(){callbackFunction();});
364 gs.functions.setArchivesMetadata(collection, site_name, nodeID, "Longitude", null, lng, null, "override", function(){callbackFunction();});
365 console.log("NodeID: " + nodeID);
366 console.log("GPS Click handler in collection:" + collection + " in site: " + site_name + " for Doc: " + nodeID + "(" + lat + "," + lng + ")");
367 });
368 }
369}
370
371function focusDocument(id)
372{
373 var doc = _docList[id];
374 if(doc)
375 {
376 clearInterval(_intervalHandle);
377 _intervalHandle = null;
378 _map.panTo(new google.maps.LatLng(doc.lat, doc.lng));
379 clearAllInfoBoxes();
380 doc.marker.markerInfo.open(_map, doc.marker);
381 var scrollCheckbox = $("#scrollCheckbox");
382 if(scrollCheckbox.checked)
383 {
384 scrollCheckbox.checked = false;
385 }
386 }
387}
388
389function clearAllInfoBoxes()
390{
391 for(var i = 0; i < _docList.ids.length; i++)
392 {
393 var doc = _docList.getDocByIndex(i);
394 doc.marker.markerInfo.close();
395 }
396}
397
398function createMarker(doc, mainMarker)
399{
400 var pos = new google.maps.LatLng(doc.lat,doc.lng);
401
402 var docEdit = (("docEdit" in gs.cgiParams) && (gs.cgiParams['docEdit']));
403 //var draggable_val = (docEdit) ? true : false;
404
405 // When user logs out, the very first page they're returned to has logout set
406 // If the user logged out when leaving docEdit on, then the very first page has docEdit=1 AND logout.
407 // In that case, don't allow editing. Subsequent pages in logged out mode have neither logout nor docEdit=1 set.
408 var loggedOutVar = ("logout" in gs.cgiParams);
409
410 // Don't allow dragging if either 1. docEdit not on OR 2. logout is in the cgiParams
411 var draggable_val = (!docEdit || loggedOutVar) ? false : true;
412
413 var marker
414 if(mainMarker)
415 {
416 marker = new google.maps.Marker
417 ({
418 position: pos,
419 title:doc.title,
420 map:_map,
421 draggable: draggable_val
422 });
423 }
424 else
425 {
426 marker = new google.maps.Marker
427 ({
428 position: pos,
429 title:doc.title,
430 map:_map,
431 icon:"interfaces/" + gs.xsltParams.interface_name + "/images/bluemarker.png",
432 draggable: draggable_val
433 });
434 }
435
436 var docElement = gs.jqGet("div" + doc.nodeID);
437 var parent;
438 if(docElement)
439 {
440 parent = docElement.parentNode;
441 }
442
443 while(parent && parent.nodeName != "BODY")
444 {
445 if($(parent).attr("id") && $(parent).attr("id").search("divCL") != -1)
446 {
447 doc.parentCL = parent;
448 break;
449 }
450
451 parent = parent.parentNode;
452 }
453
454 var info = new google.maps.InfoWindow({content:doc.title});
455 marker.markerInfo = info;
456 doc.marker = marker;
457 attachClickHandler(marker, doc.nodeID);
458
459 ////////////////////////////////////////////////////// TEST
460
461 newLat = marker.getPosition().lat();
462 newLng = marker.getPosition().lng();
463 //console.log("Latitude " + newLat);
464 //console.log("Longitude " + newLng);
465 //NewLatLng(newLat, newLng);
466
467// // Define the LatLng coordinates for the polygon's path.
468// var triangleCoords = [
469// {lat: 18.774, lng: -80.190},
470// {lat: 18.466, lng: -64.600},
471// {lat: 32.321, lng: -64.757},
472// {lat: 32.300, lng: -80.190},
473// {lat: 28.300, lng: -90.190}
474// ];
475//
476// // Construct the polygon.
477// var bermudaTriangle = new google.maps.Polygon({
478// paths: triangleCoords,
479// strokeColor: '#FF0000',
480// strokeOpacity: 0.8,
481// strokeWeight: 2,
482// fillColor: '#FF0000',
483// fillOpacity: 0.35
484// });
485// bermudaTriangle.setMap(map);
486}
487
488function NewLatLng(lat, lng)
489{
490 console.log("Latitude " + lat);
491 console.log("Longitude " + lng);
492}
493
494function getSubClassifier(sectionID)
495{
496 var url = gs.xsltParams.library_name + "?a=b&rt=s&s=ClassifierBrowse&c=" + gs.cgiParams.c + "&cl=" + sectionID + "&excerptid=jsonNodes";
497 $.ajax(url)
498 .success(function(responseText)
499 {
500 var startIndex = responseText.indexOf(">");
501 var endIndex = responseText.indexOf("</");
502
503 var jsonNodes = eval(responseText.substring(startIndex+1, endIndex));
504 if(jsonNodes && jsonNodes.length > 0)
505 {
506 for(var i = 0; i < jsonNodes.length; i++)
507 {
508 var doc = jsonNodes[i];
509 _docList[doc.nodeID] = doc;
510 _docList.ids.push(doc.nodeID);
511
512 createMarker(doc, false);
513 }
514
515 $("#map_canvas").css({"visibility": "visible", "height": ""});
516 }
517
518 updateMap();
519 })
520 .error(function()
521 {
522 console.log("Error getting subclassifiers");
523 return;
524 });
525}
526
527function performDistanceSearch(id, lat, lng, degrees)
528{
529 if(parseFloat(lat) > 180 || parseFloat(lat) < -180 || parseFloat(lng) > 180 || parseFloat(lat) < -180)
530 {
531 console.log("Latitude or longitude incorrectly formatted");
532 return;
533 }
534
535 if(lat.indexOf(".") == -1 || lng.indexOf(".") == -1 || (lat.indexOf(".") + 3) >= lat.length || (lng.indexOf(".") + 3) >= lng.length)
536 {
537 console.log("Latitude or longitude does not have the required precision for a distance search");
538 return;
539 }
540
541 var query = "";
542 for(var i = 0; i < degrees * 2; i++)
543 {
544 for (var j = 0; j < degrees * 2; j++)
545 {
546 var latDelta = (i - degrees) * 0.01;
547 var lngDelta = (j - degrees) * 0.01;
548
549 query += "(" + getDistanceQueryString(lat, latDelta, 2, "LA", ["N","S"]);
550 query += "+AND+";
551 query += getDistanceQueryString(lng, lngDelta, 2, "LN", ["E","W"]) + ")";
552
553 if(i != ((degrees * 2) - 1) || j != ((degrees * 2) - 1)){ query += "+OR+"; }
554 }
555 }
556
557 var inlineTemplate = '\
558 <xsl:template match="/" priority="5">\
559 <table id="nearbyDocs">\
560 <tr>\
561 <th><a href="javascript:sortByDistance();">Distance</a></th><th><a href="javascript:sortAlphabetically();">Document</a></th>\
562 </tr>\
563 <xsl:apply-templates select="//documentNode"/>\
564 </table>\
565 </xsl:template>\
566 \
567 <xsl:template match="documentNode" priority="5">\
568 <xsl:if test="@nodeID !=\''+id+'\'">\
569 <tr>\
570 <td>___<gsf:metadata name="Latitude"/>______<gsf:metadata name="Longitude"/>___</td>\
571 <td><gsf:link title="'+gs.text.doc.nearby_doc_tooltip+'" type="document"><gsf:metadata name="Title"/></gsf:link></td>\
572 </tr>\
573 </xsl:if>\
574 </xsl:template>';
575
576 var url = gs.xsltParams.library_name + "?a=q&s=RawQuery&rt=rd&c=" + gs.cgiParams.c + "&s1.rawquery=" + query + "&excerptid=nearbyDocs&ilt=" + inlineTemplate.replace(/ /, "%20");
577 $.ajax(url)
578 .success(function(response)
579 {
580 response = response.replace(/<img src="[^"]*map_marker.png"[^>]*>/g, "");
581
582 var nearbyDocsArray = new Array();
583
584 var lats = new Array();
585 var lngs = new Array();
586 var matches = response.match(/___(-?[0-9\.]*)___/g);
587 for(var i = 0; i < matches.length; i += 2)
588 {
589 var matchLatFloat = parseFloat(matches[i].replace("___", ""));
590 var matchLngFloat = parseFloat(matches[i+1].replace("___", ""));
591
592 lats.push(matchLatFloat);
593 lngs.push(matchLngFloat);
594 var distance = Math.sqrt(Math.pow(matchLatFloat - parseFloat(lat), 2) + Math.pow(matchLngFloat - parseFloat(lng), 2)) * (40000.0/360.0);
595 var distanceString = "" + distance;
596 distanceString = distanceString.substring(0, 6);
597 response = response.replace(matches[i] + matches[i+1], distanceString);
598 }
599
600 var index = 0;
601 var i = 0;
602 while(true)
603 {
604 var distanceStart = response.indexOf("<td>", index);
605 if(distanceStart == -1)
606 {
607 break;
608 }
609 var distanceEnd = response.indexOf("</td>", distanceStart);
610
611 var docLinkStart = response.indexOf("<td>", distanceEnd);
612 var docLinkEnd = response.indexOf("</td>", docLinkStart);
613
614 var dist = response.substring(distanceStart + 4, distanceEnd);
615 var docLink = response.substring(docLinkStart + 4, docLinkEnd);
616
617 _nearbyDocs.push({title:docLink, distance:dist, lat:lats[i], lng:lngs[i++]});
618
619 index = docLinkEnd;
620 }
621
622 sortByDistance(lat,lng);
623
624 var toggle = $("#nearbyDocumentsToggle");
625 toggle.attr("src", gs.imageURLs.collapse);
626 gs.functions.makeToggle(toggle, $("#nearbyDocuments"));
627 });
628}
629
630var map_centering_timeout = null;
631function recenterMapF(lat, lng)
632{
633 return function() {
634 _map.setCenter(new google.maps.LatLng(lat, lng));
635 }
636}
637function recenterMap(lat, lng)
638{
639
640 _map.setCenter(new google.maps.LatLng(lat, lng));
641
642}
643function sortByDistance(base_lat,base_lng)
644{
645 var sortedTable = '<table id="nearbyDocs" onmouseleave="clearTimeout(map_centering_timeout); recenterMap('+base_lat+','+base_lng+');"><tr><th><a href="javascript:;">Distance</a></th><th><a href="javascript:sortAlphabetically('+base_lat+', '+base_lng+');">Document</a></th></tr>';
646 _nearbyDocs.sort(function(a, b){return (a.distance - b.distance);});
647 for(var i = 0; i < _nearbyDocs.length; i++)
648 {
649
650 sortedTable += "<tr><td>" + prettifyDistance(_nearbyDocs[i].distance) + '</td><td onmouseover="clearTimeout(map_centering_timeout); map_centering_timeout = setTimeout(recenterMapF(' + _nearbyDocs[i].lat + ',' + _nearbyDocs[i].lng + '), 900)" >' + _nearbyDocs[i].title + "</td></tr>";
651 }
652 sortedTable += "</table>";
653
654 $("#nearbyDocuments").html(sortedTable);
655}
656function prettifyDistance(distance) {
657
658 var new_distance;
659 if (distance < 1) {
660 new_distance = (distance * 1000);
661 // Round to nearest whole number - don't need to show points of metres..
662 new_distance = Math.round(new_distance);
663 new_distance += " m";
664 }
665 else {
666 new_distance = distance +" km";
667
668 }
669 return new_distance;
670}
671
672
673
674function sortAlphabetically(base_lat, base_lng)
675{
676 var sortedTable = '<table id="nearbyDocs" onmouseleave="clearTimeout(map_centering_timeout); recenterMap('+base_lat+','+base_lng+');"><tr><th><a href="javascript:sortByDistance('+base_lat+', '+base_lng+');">Distance</a></th><th><a href="javascript:;">Document</a></th></tr>';
677 _nearbyDocs.sort(function(a, b)
678 {
679 var firstTitleStartIndex = a.title.indexOf(">");
680 var firstTitleEndIndex = a.title.indexOf("<", firstTitleStartIndex);
681 var firstTitle = a.title.substring(firstTitleStartIndex + 1, firstTitleEndIndex);
682 var secondTitleStartIndex = b.title.indexOf(">");
683 var secondTitleEndIndex = b.title.indexOf("<", secondTitleStartIndex);
684 var secondTitle = b.title.substring(secondTitleStartIndex + 1, secondTitleEndIndex);
685 return ((firstTitle.toLowerCase() == secondTitle.toLowerCase()) ? 0 : ((firstTitle.toLowerCase() > secondTitle.toLowerCase()) ? 1 : -1));
686 });
687 for(var i = 0; i < _nearbyDocs.length; i++)
688 {
689 sortedTable += "<tr><td>" + _nearbyDocs[i].distance + '</td><td onmouseover="clearTimeout(map_centering_timeout); map_centering_timeout = setTimeout(recenterMapF(' + _nearbyDocs[i].lat + ',' + _nearbyDocs[i].lng + '), 900)">' + _nearbyDocs[i].title + "</td></tr>";
690 }
691 sortedTable += "</table>";
692
693 $("#nearbyDocuments").html(sortedTable);
694}
695
696function getDistanceQueryString(currentCoord, delta, precision, indexName, dirs)
697{
698 var query = "";
699 var coordFloat = parseFloat(currentCoord);
700
701 var newCoord = "" + (coordFloat + delta);
702 var beforeDec = newCoord.substring(0, newCoord.indexOf("."));
703
704 var dir = dirs[0];
705 if(coordFloat < 0)
706 {
707 dir = dirs[1];
708 beforeDec = beforeDec.substring(1);
709 }
710 beforeDec += dir;
711
712 var afterDec = newCoord.substring(newCoord.indexOf(".") + 1, newCoord.indexOf(".") + (precision) + 1);
713
714 return indexName + ":" + beforeDec + "+AND+" + indexName + ":" + afterDec;
715}
716
717function modifyFunctions()
718{
719 toggleSection = function(sectionID)
720 {
721 var section = gs.jqGet("div" + sectionID);
722 var sectionToggle = gs.jqGet("toggle" + sectionID);
723
724 if(sectionToggle == undefined)
725 {
726 return;
727 }
728
729 // Test if 'section' exists.
730 // ==> Because we're using jQuery to do this we need to test the length of the object returned
731 // http://stackoverflow.com/questions/920236/how-can-i-detect-if-a-selector-returns-null
732 if(section.length !== 0)
733 {
734 if(isExpanded(sectionID))
735 {
736 section.css("display", "none");
737 sectionToggle.attr("src", gs.imageURLs.expand);
738
739 if(openClassifiers[sectionID].length !== 0) //if(openClassifiers[sectionID] != undefined)
740 {
741 delete openClassifiers[sectionID];
742 }
743 }
744 else
745 {
746 section.css("display", "block");
747 sectionToggle.attr("src", gs.imageURLs.collapse);
748 openClassifiers[sectionID] = true;
749 }
750 updateOpenClassifiers();
751 updateMap();
752 }
753 else
754 {
755 httpRequest(sectionID);
756 }
757 }
758
759 httpRequest = function(sectionID)
760 {
761 if(!inProgress[sectionID])
762 {
763 inProgress[sectionID] = true;
764
765 var sectionToggle = gs.jqGet("toggle" + sectionID);
766 sectionToggle.attr("src", gs.imageURLs.loading);
767
768 var url = gs.xsltParams.library_name + "/collection/" + gs.cgiParams.c + "/browse/" + sectionID.replace(/\./g, "/") + "?excerptid=div" + sectionID;
769
770 if(gs.cgiParams.berrybasket == "on")
771 {
772 url = url + "&berrybasket=on";
773 }
774
775 if(url.indexOf("#") != -1)
776 {
777 url = url.substring(0, url.indexOf("#"));
778 }
779
780 $.ajax(url)
781 .success(function(responseText)
782 {
783 var newDiv = $("<div>");
784 var sibling = gs.jqGet("title" + sectionID);
785 sibling.after(newDiv);
786
787 newDiv.html(responseText);
788 sectionToggle.attr("src", gs.imageURLs.collapse);
789 openClassifiers[sectionID] = true;
790
791 if(gs.cgiParams.berrybasket == "on")
792 {
793 checkout();
794 }
795 updateOpenClassifiers();
796 getSubClassifier(sectionID);
797 })
798 .error(function()
799 {
800 sectionToggle.attr("src", gs.imageURLs.expand);
801 })
802 .complete(function()
803 {
804 inProgress[sectionID] = false;
805 busy = false;
806 });
807 }
808 }
809}
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