Open-ILS/web/opac/skin/default/js/sidebar_extras.js

   1
   2 /* captures extraneous info from each record */
   3
   4 var subjectCache = {};
   5 var authorCache = {};
   6 var seriesCache = {};
   7
   8 function resultBuildCaches(records) {
   9         for( var r in records ) {
  10                 var rec = records[r];
  11                 for( var s in rec.subject() )
  12                         subjectCache[s] == null ? subjectCache[s] = 1 : subjectCache[s]++;
  13                 authorCache[rec.author()] = 1;
  14                 for( var s in rec.series() ) seriesCache[rec.series()[s]] = 1;
  15         }
  16 }
  17
  18 function resultSortSubjects(a, b) { return -(a.count - b.count); } /* sort in reverse */
  19 function resultDrawSubjects() {
  20
  21         var subjs = [];
  22         for( var s in subjectCache )
  23                 subjs.push( { sub : s, count : subjectCache[s] } );
  24         subjs.sort(resultSortSubjects);
  25
  26         var ss = [];
  27         for( var s in subjs ) ss.push(subjs[s].sub);
  28
  29         resultDrawSidebarTrees(
  30                 STYPE_SUBJECT,
  31                 "subjectSidebarTree", ss,
  32                 $("subject_tree_sidebar"),
  33                 $("subject_sidebar_tree_div") );
  34 }
  35
  36 function resultDrawAuthors() {
  37         var auths = new Array();
  38         for( var s in authorCache ) auths.push(s);
  39
  40         resultDrawSidebarTrees(
  41                 STYPE_AUTHOR,
  42                 "authorSidebarTree", auths.sort(),
  43                 $("author_tree_sidebar"),
  44                 $("author_sidebar_tree_div") );
  45 }
  46
  47 function resultDrawSeries() {
  48         var sers = new Array();
  49         for( var s in seriesCache ) sers.push(s);
  50         resultDrawSidebarTrees(
  51                 STYPE_SERIES,
  52                 "seriesSidebarTree", sers.sort(),
  53                 $("series_tree_sidebar"),
  54                 $("series_sidebar_tree_div") );
  55 }
  56
  57 var _oldFashioned = true;
  58 var IESux = true;
  59
  60 function resultDrawSidebarTrees( stype, treeName, items, wrapperNode, destNode ) {
  61         eval("tree = " + treeName);
  62
  63         var xrefCache = [];
  64         var found = false;
  65         var x = 0;
  66         for( var i in items ) {
  67
  68                 if(isNull(items[i])) continue;
  69
  70                 /* again, IE is a turd */
  71                 //if(IE) { if(x++ > 5) break; }
  72                 //else { if(x++ > 7) break; }
  73                 if(x++ > 7) break;
  74
  75                 found = true;
  76
  77                 var item = normalize(truncate(items[i], 65));
  78                 var trunc = 65;
  79                 var args = {};
  80                 var href = resultQuickLink( items[i], stype );
  81                 tree.addNode( stype + "_" + items[i], treeName + 'Root', item, href );
  82
  83                 ////if(_oldFashioned && !IE) {
  84                 if(_oldFashioned && !IE ) resultFireXRefReq(treeName, stype, items[i]);
  85
  86                 var a = {};
  87                 a.type = stype;
  88                 a.term = item;
  89                 xrefCache.push(a);
  90         }
  91
  92         if(found) {
  93                 unHideMe(wrapperNode);
  94                 if(!_oldFashioned)
  95                         resultFireXRefBatch(treeName, xrefCache, stype);
  96                 //if(IE && stype == 'subject' ) {
  97
  98                 if(IE) resultFireXRefSingle(treeName, xrefCache, stype);
  99         }
 100 }
 101
 102 function resultFireXRefBatch(treeName, xrefCache, stype) {
 103         var query = [];
 104         for( var i = 0; i != xrefCache.length; i++ ) {
 105                 var topic = xrefCache[i];
 106                 query.push( [ topic.type, topic.term ] );
 107         }
 108         var req = new Request(FETCH_CROSSREF_BATCH, query);
 109         var tree;
 110         eval('tree=' + treeName);
 111         req.request._tree = tree;
 112         req.request._stype = stype;
 113         req.callback(resultRenderXRefTree);
 114         req.send();
 115 }
 116
 117 var xrefCacheIndex = {};
 118 xrefCacheIndex['subject'] = 0;
 119 xrefCacheIndex['author'] = 0;
 120 xrefCacheIndex['series'] = 0;
 121
 122 function resultHandleXRefResponse(r) {
 123         resultFireXRefSingle( r._treename, r._cache, r._stype );
 124         resultAppendCrossRef(r);
 125 }
 126
 127
 128 function resultFireXRefSingle( treeName, xrefCache, stype ) {
 129         var i = xrefCacheIndex[stype]++;
 130         var item = xrefCache[i].term;
 131         var tree;
 132         eval('tree=' + treeName);
 133         var req = new Request(FETCH_CROSSREF, stype, item);
 134         req.request._tree = tree;
 135         req.request._item = item;
 136         req.request._stype = stype;
 137         req.request._cache = xrefCache;
 138         req.request._treename = treeName;
 139         req.callback(resultHandleXRefResponse);
 140         req.send();
 141 }
 142
 143 function resultFireXRefReq( treeName, stype, item ) {
 144         var tree;
 145         eval('tree=' + treeName);
 146         var req = new Request(FETCH_CROSSREF, stype, item);
 147         req.request._tree = tree;
 148         req.request._item = item;
 149         req.request._stype = stype;
 150         req.callback(resultAppendCrossRef);
 151         req.send();
 152 }
 153
 154
 155 function resultQuickLink( term, type ) {
 156         var args = {};
 157         args.page = MRESULT;
 158         args[PARAM_OFFSET] = 0;
 159         args[PARAM_TERM] = term;
 160         args[PARAM_STYPE] = type;
 161         return buildOPACLink(args);
 162 }
 163
 164 function resultRenderXRefTree(r) {
 165         var tree = r._tree;
 166         var res = r.getResultObject();
 167         var stype = r._stype;
 168
 169         for( var c in res ) {
 170                 var cls = res[c];
 171                 for( var t in cls ) {
 172                         var term = res[c][t];
 173                         var froms = term['from'];
 174                         var alsos = term['also'];
 175                         var total = 0;
 176
 177                         for( var i = 0; (total++ < 5 && i < froms.length); i++ ) {
 178                                 var string = normalize(truncate(froms[i], 45));
 179                                 if($(stype + '_' + froms[i])) continue;
 180                                 tree.addNode(stype + '_' + froms[i],
 181                                         stype + '_' + t, string, resultQuickLink(froms[i],stype));
 182                         }
 183                         for( var i = 0; (total++ < 10 && i < alsos.length); i++ ) {
 184                                 var string = normalize(truncate(alsos[i], 45));
 185                                 if($(stype + '_' + alsos[i])) continue;
 186                                 tree.addNode(stype + '_' + alsos[i],
 187                                         stype + '_' + t, string, resultQuickLink(alsos[i],stype));
 188                         }
 189                 }
 190         }
 191 }
 192
 193
 194 function resultAppendCrossRef(r) {
 195         var tree                = r._tree
 196         var item                = r._item
 197         var stype       = r._stype;
 198         var result      = r.getResultObject();
 199         if(!result) return;
 200         var froms       = result['from'];
 201         var alsos       = result['also'];
 202
 203         var total = 0;
 204
 205         for( var i = 0; (total++ < 5 && i < froms.length); i++ ) {
 206                 var string = normalize(truncate(froms[i], 45));
 207                 if($(stype + '_' + froms[i])) continue;
 208                 tree.addNode(stype + '_' + froms[i],
 209                         stype + '_' + item, string, resultQuickLink(froms[i],stype));
 210         }
 211         for( var i = 0; (total++ < 10 && i < alsos.length); i++ ) {
 212                 var string = normalize(truncate(alsos[i], 45));
 213                 if($(stype + '_' + alsos[i])) continue;
 214                 tree.addNode(stype + '_' + alsos[i],
 215                         stype + '_' + item, string, resultQuickLink(alsos[i],stype));
 216         }
 217 }
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